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Abdominal pain during pregnancy - Carrera de Médico …

Abdominal pain during pregnancy - Carrera de Médico …
Abdominal pain during pregnancy - Carrera de Médico …

Abdominal pain during pregnancy

Mitchell S.Cappell,MD,PhD,FACG a,b,*,

David Friedel,MD c

a Division of Gastroenterology,Department of Medicine,Woodhull Medical Center,

760Broadway Avenue,Brooklyn,NY 11206,USA

b State University of New York Downstate Medical School,450Clarkson Avenue,

Brooklyn,NY 11203,USA

c Division of Gastroenterology,Department of Medicine,

Temple University School of Medicine,3401North Broad Street,Philadelphia,

PA 19149,USA

Abdominal pain is a common complaint of female inpatients and outpatients of all ages [1],including women during their childbearing years,and thus often occurs during pregnancy.Abdominal pain during pregnancy presents unique clinical challenges.First,the differential diagnosis during pregnancy is extensive,in that the abdominal pain may be caused by obstetric or gynecologic disorders related to pregnancy,as well as by intraabdominal diseases incidental to pregnancy.

Second,the clinical presentation and natural history of many abdominal disorders are altered during pregnancy.Third,the diagnostic evaluation is altered and constrained by pregnancy.For example,radiologic tests and invasive examinations raise issues of fetal safety during pregnancy.Fourth,the interests of both the mother and the fetus must be considered in therapy during https://www.doczj.com/doc/e77514991.html,ually,these interests do not con?ict,because what is good for the mother is generally good for the fetus.Sometimes,however,maternal therapy must be modi?ed to substitute alternative but safer therapy because of concerns about drug teratogenicity (eg,substituting a histamine 2receptor antagonist for misoprostol,an abortifacient that is contraindicated during pregnancy)[2,3].Rarely,the maternal and fetal interests are diametri-cally opposed,as in the use of chemotherapy for maternal cancer,a therapy that is potentially life-saving to the mother but life-threatening to the fetus [4].These con?icts raise signi?cant medical,legal,and ethical issues.

Gastroenterologists,as well as obstetricians,gynecologists,internists,and surgeons,should be familiar with the medical and surgical conditions Gastroenterol Clin N Am

32(2003)

1–58

*Corresponding author.Department

of Medicine,Woodhull Medical Center,760

Broadway Avenue,Brooklyn,NY 11206.0889-8553/03/$–see front matter ó2003,Elsevier Science (USA).All rights reserved.PII:S 0889-8553(02)00064-X

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that can present in pregnancy and how these conditions a?ect and are a?ected by pregnancy.This article reviews obstetric,gynecologic,medical, and surgical causes of abdominal pain during pregnancy,with a focus on aspects of abdominal diseases unique to pregnancy.

Abdominal pain during pregnancy:general considerations Neurophysiology of abdominal pain

Nociception involves a?ective or autonomic re?exes from abdominal viscera to the cerebral cortex involving three levels of neurons.The?rst-order neurons are either C or A-delta?bers.C?bers are narrow,slowly conducting,and unmyelinated and produce a dull and nonlocalized sensation of pain.A-delta?bers are wider,partly myelinated,and faster conducting and produce a sharp and localized sensation of pain.The?rst-level a?erent neurons travel from abdominal structures to synapse in the dorsal horn of the spinal cord.The second-order neurons cross the mid-line to the contralateral side of the spinal cord to ascend through the spinothalamic and spinoreticular tracts to the thalamic and reticular areas of the pons and medulla[5].Third-order neurons travel to the limbic system and sensory cortex where pain is perceived[6–8].

Abdominal pain can be visceral,arising from gastrointestinal organs; parietal,arising from peritoneal irritation;somatic,arising from the abdominal wall;neurologic,arising from diseases a?ecting abdominal nerves;extraintestinal,from referred pain;or cerebral,from neuropyschi-atric disorders or factitious disease.Visceral pain tends to be dull,poorly localized,and perceived in the midabdomen because a?erent nerve?bers from abdominal viscera typically are C?bers and receive multisegmental and bilateral a?erent innervation from the spinal cord.Visceral pain may be accompanied by autonomic concomitants of nausea,diaphoresis,and pallor.Abdominal viscera are most sensitive to mural stretch.Parietal pain tends to be more acute,intense,and focal because it is conveyed by a mixture of A-delta and C?bers and tends to have more discrete innerva-tion from the spinal cord[9].Parietal pain is exacerbated by coughing, movement,and deep inspiration.Somatic tissue in skin,subcutaneous tissue,and muscle is innervated predominantly by A-delta nerve?bers so that somatic pain is focal and sharp.

Referred pain is felt remotely from the a?ected area because of the convergence of visceral and somatic a?erent neurons to the same level of the spinal cord and the use of the same second-order neurons.For example, pain from gastrointestinal disorders,such as acute cholecystitis,or pain from obstetric disorders,such as ectopic pregnancy,may be referred to the shoulder or back[10].Conversely,pain from an extraabdominal condition, such as a migraine headache,may be referred to the abdomen.

Pain can be modi?ed centrally or peripherally by the emotional state or psychologic stress [11,12].Descending pathways from the cortex,thalamus,and brainstem inhibit nociceptive neural impulses at the level of the spinal cord,providing cerebral control and inhibition of painful sensations [13].Hormones or in?ammatory mediators,such as cytokines,also alter the threshold to noxious stimuli [14,15].These mechanisms may explain abdominal pain secondary to stress,in support of the hypothesis of hyperalgesia in the irritable bowel syndrome and other functional gastro-intestinal disorders [16,17].Persistent visceral pain is often referred to more super?cial structures and often becomes hyperalgesic [18],because of factors such as centrally mediated long-term potentiation,possibly mediated by N -methyl-d-aspartate [19–21].

Differential diagnosis of abdominal pain during pregnancy

The di?erential diagnosis of abdominal pain is extensive.The di?erential diagnosis of pain varies according to location.Di?use abdominal pain may arise from

Uremia

Porphyria

Peritonitis

Leaking abdominal aneurysm

Hepatic abscess

Gastroenteritis

In?ammatory bowel disease

Early appendicitis

Pancreatitis

Small bowel obstruction

Malaria

Intestinal pseudoobstruction

Partial intestinal obstruction

Pain in the left upper quadrant can be caused by

Peptic ulcer disease

Perforated peptic ulcer

Splenic infarct or rupture

Splenic abscess

Dissecting aortic aneurysm

Nephrolithiasis

Pyelonephritis

Gastric volvulus

Incarcerated paraesophageal hernia

Esophageal rupture

Esophageal stricture

Mallory-Weiss tear

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4M.S.Cappell,D.Friedel/Gastroenterol Clin N Am32(2003)1–58 Mesenteric ischemia

Pneumonia

Rib fracture

Radiculopathy

Pulmonary embolus or infarct

Pain in the right upper quadrant can result from

Peptic ulcer disease

Perforated duodenal ulcer

Hepatitis

Hepatic vascular engorgement

Hepatic hematoma

Hepatic malignancy

Biliary colic

Choledocholithiasis

Cholangitis

Cholecystitis

Preeclampsia or eclampsia

Hemolysis,elevated liver enzymes,and low platelet count

(HELLP)syndrome

Pyelonephritis

Nephrolithiasis

Rib fracture

Shingles

Pneumonia

Pulmonary embolus or infarct

Pleural effusion

Radiculopathy

Inferior wall myocardial infarction

Colon cancer

Causes of pain in the right lower quadrant include

Appendicitis

Ruptured Meckel’s diverticulum

Crohn’s disease

Ovarian cyst rupture

Ovarian torsion

Ovarian tumor

Ruptured ectopic pregnancy

Intussusception

Nephrolithiasis

Cystitis

Pyelonephritis

Trochanteric bursitis

Endometriosis

Uterine leiomyomas

Cecal perforation

Colon cancer

Pain in the left lower quadrant can result from gastrointestinal causes,gyne-cologic and obstetric causes,and other causes.Gastrointestinal causes include

Diverticulitis

Sigmoid volvulus

Colon cancer

Colonic perforation

Urinary tract infection

Small bowel obstruction

In?ammatory bowel disease

Irritable bowel disease

Mesenteric ischemia

Gynecologic and obstetric causes of left lower quadrant abdominal pain include

Ruptured ectopic pregnancy

Ovarian cyst rupture

Pelvic in?ammatory disease

Tubo-ovarian abscess

Uterine leiomyomas (including rupture or necrosis)

Abortion (threatened,incomplete,or complete)

Ovarian/adnexal mass

Acute salpingitis

Endometriosis

Ruptured corpus luteum

Cancer of cervix or ovary

Other causes of left lower quadrant abdominal pain are

Nephrolithiasis

Pyelonephritis

Leaking abdominal aneurysm

The abdominal pain is somewhat delimited by the pain location (Table 1).Conditions range from minor to life-threatening.In addition,physiologic changes during pregnancy may cause abdominal symptoms.Nausea,emesis,early satiety,bloating,and pyrosis are common during pregnancy.Serious disorders that produce these symptoms may,therefore,be dif?cult to distinguish from physiologic changes during pregnancy.Serious symptoms should not be dismissed as normal during pregnancy without a careful history and appropriate evaluation.

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In the medical history,the pain intensity,nature,temporal pattern,radiation pattern,exacerbating factors,and alleviating factors help narrow the di?erential diagnosis.The abdominal pain is progressively increasing in appendicitis but is nonprogressive in viral gastroenteritis.The pain from small intestinal obstruction may be intermittent but is severe [22].Renal and biliary colic also produce a waxing and waning intensity of pain.Acute cholecystitis is associated with right upper quadrant pain,as well as with pain referred to the right shoulder.The pain of acute pancreatitis is often boring in quality,located in the abdominal midline and radiating to the back.Careful physical examination of the abdomen including inspection,palpation,and auscultation can further pinpoint the cause of the https://www.doczj.com/doc/e77514991.html,boratory evaluation of signi?cant abdominal pain routinely includes a hemogram,serum electrolytes,and liver function tests,and often includes a leukocyte differential,coagulation pro?le,and serum amylase determina-tion.In evaluating the laboratory results,gestational changes in normative values,as described later,must be considered.Radiologic tests may be extremely helpful diagnostically,but the choice of radiologic imaging is constrained by the pregnancy,as discussed later.

The character,severity,localization,or instigating factors of abdominal pain often vary with time.For example,acute appendicitis typically changes from a dull,poorly localized,moderate pain to an intense and focal pain as the in?ammation extends from the appendiceal wall to the surrounding peritoneum.When the diagnosis and therapy is uncertain,close and vigilant monitoring by a surgical team,with frequent abdominal examination and regular laboratory tests,can often clarify the diagnosis.

Occasionally,the pregnancy is not known by the patient or is not revealed to the physician,particularly in early pregnancy,when physical

Table 1

Common causes of acute,severe abdominal pain in the pregnant woman

Condition

Location Character Radiation Ruptured ectopic

pregnancy

Lower abdominal or pelvic Localized,severe None Pelvic in?ammatory

disease

Lower abdominal or pelvic Gradual in onset,localized Flanks and thighs Appendicitis First periumbilical,

later RLQ (RUQ

in late pregnancy)

Gradual in onset,focal in RLQ Back /?ank Acute cholecystitis RUQ

Focal Right scapula,shoulder,or back Pancreatitis Epigastric

Localized,boring Middle of back Perforated peptic ulcer Epigastric or

RUQ

Burning,boring Right back Urolithiasis Abdomen or

?anks Varies from intermittent and aching to severe

and unremitting Groin

Abbreviations :RUQ,right upper quadrant;RLQ,right lower quadrant.

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?ndings are absent.The physician should be vigilant for possible pregnancy in a fertile woman with abdominal pain,particularly in the setting of missed menses,because pregnancy a?ects the di?erential diagnosis,clinical evaluation,and mode of therapy.Pregnancy tests should be performed early in the evaluation of abdominal pain in a fertile woman.Pregnancy is assayed by radioimmunoassay (RIA)or enzyme-linked immunoassay (ELISA)determination of the B -unit of human chorionic gonadotropin (hCG)in urine or serum [23].

Physiologic effects of pregnancy on abdominal disorders

Abdominal assessment during pregnancy is modi?ed by displacement of abdominal viscera by the expanding gravid uterus [24].For example,the location of maximal abdominal pain and tenderness from acute appendicitis migrates superiorly and laterally as the appendix is displaced by the growing gravid uterus [25].A rigid abdomen with rebound tenderness remains a valid indicator of peritonitis during pregnancy,but abdominal wall laxity in late pregnancy might mask the classic signs of peritonitis [26,27].An abdominal mass may be missed on physical examination because of the presence of the enlarged gravid uterus [4].

Physiologic alterations of laboratory values during pregnancy must be appreciated,including mild leukocytosis,physiologic anemia of pregnancy,mild dilutional hypoalbuminemia,mildly increased alkaline phosphatase level,and electrolyte changes,particularly mild hyponatremia [28–30].The erythrocyte sedimentation rate is physiologically elevated and thus is a less reliable monitor of in?ammatory activity during pregnancy [31].Gestational hormones,particularly estrogen,contribute to a mild hypercoagulopathy during pregnancy by increasing the synthesis of clotting factors [32].Thromboembolic phenomena are also promoted by intraabdominal vas-cular stasis resulting from compression by the enlarged gravid uterus.Urinary stasis and ureteral dilatation are promoted during pregnancy by urinary tract muscle relaxation induced by progesterone and by mechanical compression of the ureters by the fetal skull [33].The changes in glucose serum levels during pregnancy are complex.Normal pregnancy is char-acterized by fasting hypoglycemia,postprandial hyperglycemia,and hyper-insulinemia [34].Strict control of the serum glucose level is important in diabetic patients for proper fetal development [35].

Mucosal immunity may be diminished during pregnancy as part of physiologic immunologic tolerance of the foreign fetal antigens in the uterus

[36].This reduced mucosal immunity contributes to an increased rate of pyelonephritis during pregnancy.Pregnancy promotes cholelithiasis because of increased cholesterol synthesis and gallbladder hypomotility related to gestational hormones.

The fetus poorly tolerates maternal hypotension,hypovolemia,anemia,and hypoxia.This intolerance a?ects the type and timing of therapy for 7

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abdominal disorders during pregnancy.The gravid uterus can compress the inferior vena cava in the supine position and thereby compromise venous return,aggravating systemic hypoperfusion from hypovolemia or gastro-intestinal bleeding.Simply turning the patient to the left side to displace the uterus may relieve this compression,improve venous return,and normalize the blood pressure[29].During pregnancy the blood pressure normally declines modestly.A rise in blood pressure during pregnancy may,therefore, portend preeclampsia or eclampsia.

Diagnostic imaging during pregnancy

Fetal safety during diagnostic imaging is a concern for pregnant patients and pregnant medical personnel.Ultrasonography is considered safe during pregnancy and is the preferred imaging modality for abdominal pain during pregnancy[37,38].Unfortunately,the test sensitivity depends on operator technique,patient cooperation,and patient anatomy,in that sensitivity is decreased by abdominal fat and intestinal gas[38].Magnetic resonance imaging(MRI)is preferable to computerized tomography(CT)scanning during pregnancy to avoid ionizing radiation,but gadolinium administra-tion should be avoided during the?rst trimester[39–43].Rapid-sequence MR imaging is preferable to conventional MR imaging because of the briefer exposure[41].The patient should undergo counseling before diagnostic roentgenography.

Data concerning fetal malformations,growth retardation,and mortality from ionizing radiation are derived from past experience,especially from Japanese atomic bomb survivors.Radiation can cause chromosomal mutations and neurologic abnormalities including mental retardation and moderately increases the risk of childhood leukemia[43,44].Radiation dosage is the most important risk factor,but fetal age at exposure and proximity to the radiation source are also important[43,44].Fetal mortality is greatest from radiation exposure during the?rst week after conception, before oocyte implantation[40,43,44].Exposure to more than15rads during the second and third trimesters or more than5rads during the?rst trimester,when the risk of neurologic malformations is greatest,should prompt consideration of elective termination of pregnancy[40,43–45]. Diagnostic studies with the most radiation exposure,such as intravenous pyelography or barium enema,typically expose the fetus to less than1rad [40,42,45].Thus,one diagnostic?uoroscopic procedure is relatively safe in pregnancy.A medical physicist can estimate the fetal exposure from the study[40,42].Fetal radiation exposure should be minimized by shielding, collimation,and rapid-sequence studies.

Endoscopy during pregnancy

Endoscopy is often performed in the evaluation of abdominal pain in nonpregnant patients.Flexible sigmoidoscopy is performed to evaluate

minor lower gastrointestinal complaints including rectal symptoms,and esophagogastroduodenoscopy (EGD)is performed to evaluate epigastric pain,dyspepsia,or pyrosis.Although endoscopy is extremely safe in the general population,endoscopy during pregnancy raises the unique issue of fetal safety.Endoscopy could potentially cause fetal complications from medication teratogenicity,placental abruption or fetal trauma during endoscopic intubation,cardiac arrhythmias,systemic hypotension or hypertension,and transient hypoxia.Medication teratogenicity is of partic-ular concern during the ?rst trimester during organogenesis.

Sigmoidoscopy seems to be relatively safe during pregnancy.No woman su?ered endoscopic complications in a study of 46patients undergoing sigmoidoscopy during pregnancy [46].Excluding 1unknown pregnancy outcome and 4voluntary abortions,38of 41pregnant women delivered healthy infants,including 27at full term.Their mean Apgar scores were not signi?cantly different from the mean national Apgar scores.Moreover,study patients did not have a worse outcome than pregnant controls matched for sigmoidoscopy indications who did not undergo sigmoidoscopy,because of maternal and physician choice,in terms of mean infant Apgar scores at birth,and in terms of the rates of fetal or neonatal demise,premature delivery,low birth weight,and delivery by cesarean section.Additionally,no endoscopic complications were reported in 13?exible sigmoidoscopies during pregnancy analyzed by a mailed survey of 3300gastroenterologists [47].All pregnancies resulted in delivery of healthy infants at term.

These studies,in addition to scattered case reports,strongly suggest that sigmoidoscopy during pregnancy does not induce labor or cause congenital malformations,is not contraindicated,and should be strongly considered in medically stable patients with important indications.Sigmoidoscopy is not recommended during pregnancy for weak indications,such as routine cancer screening or surveillance,which can be deferred until at least 6weeks postpartum.Sigmoidoscopy should be performed with maternal monitoring by electrocardiography,sphygmomanometry,and pulse oximetry,after obstetric consultation and medical stabilization.Analgesic medication is minimized during sigmoidoscopy,especially during the ?rst trimester.The safety of EGD during pregnancy is peripheral to this article but is considered in detail in a companion article on the safety of endoscopy during pregnancy.Team approach and informed consent

A team approach with consultation and referral helps optimize the management of complex diseases during pregnancy that a?ect both the mother and the fetus and that require disparate areas of expertise.The gastroenterologist contemplating endoscopy may consult with the obstetri-cian about the optimal procedure timing and with the anesthesiologist about analgesia during endoscopy.The internist may discuss with the radiologist the bene?ts versus risks of radiologic tests,and the radiologist may in turn consult 9

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with a physicist about methods to monitor and reduce fetal radiation exposure.The surgeon may consult with the obstetrician about the timing of abdominal surgery in relation to the pregnancy and about the possibility of performing simultaneous cesarean section and abdominal https://www.doczj.com/doc/e77514991.html,plex gastrointestinal or surgical problems during pregnancy may be best handled at a tertiary hospital with the requisite experience and expertise.

The patient should be informed about the consequences to both herself and her fetus of diagnostic tests and therapy and should be actively involved in medical decisions.The patient makes the decision,under the vigilant guidance of the experts,and with advice by the father,family,and friends. When an intervention,such as roentgenographic tests,entails signi?cant potential fetal risk,a signed,witnessed,and informed consent is recom-mended,even though this intervention would be routine and not require consent in the nonpregnant patient.

Obstetric disorders

Ectopic pregnancy

In ectopic pregnancy(EP),the blastocyst implants at a site other than the uterine endometrium.Ninety-?ve percent of EPs implant in the oviduct, including the ampulla,isthmus,or?mbria[23].The remainder implant in the uterine interstitium,cervix,ovaries,or elsewhere in the abdomen[23,48].

Risk factors for EP include prior EP[49,50],advanced maternal age[51], prior pelvic in?ammatory disease(PID)[52],tubal surgery[53],laboratory-assisted reproduction[54],previous abortion[55],endometriosis[56], preexisting fallopian,adnexal,or uterine pathology[57],and prior compli-cated abdominal surgery,such as ruptured appendicitis(Box1)[58].Other reported associations include cigarette smoking[59],low socioeconomic status,and black race[60].Some cases are idiopathic.Ectopic embryos do not have more chromosomal mutations than intrauterine embryos[61].

The incidence of EP has increased in the United States from0.5%of pregnancies,or18,000women in1970,to2.0%of pregnancies,or110,000 women in1992[62,63],as a result of more fallopian tube surgery,more laboratory-assisted pregnancies,better PID therapy,more accurate detec-tion of early pregnancy,and use of intrauterine devices or low-dose pro-gestational agents which prevent intrauterine,but not ectopic,pregnancy [64–66].The age of presentation depends on the cause:sexually active young women tend to have EP from PID,whereas older women tend to have EP from laboratory-assisted reproduction and prior tubal surgery[67].

About70%of patients present with the classic history of abdominopelvic pain and vaginal bleeding after a period of amenorrhea[48].The pain may initially be diffuse and vague but later becomes focal and severe[68,69]. The pain may initially be contralateral to the EP because of a leaking corpus luteum[70].The implantation site affects the clinical presentation.

Symptoms can occur within 2weeks of a missed menses when the conceptus implants in the narrow proximal isthmus but usually occur more than 6weeks after a missed menses when the conceptus implants in the wider distal ampulla [71].Physical signs vary greatly but may include mild uteromegaly,cervical tenderness,and an adnexal mass [72].

The diagnosis is initially missed in nearly one half of cases because of the insensitivity of the patient history and physical examination [72,73].The mean serum progesterone level is higher in a viable intrauterine pregnancy Box 1.Clinical presentation and diagnosis of ectopic pregnancy Epidemiology

0.5%of all pregnancies

10%in women with prior ectopic pregnancy

Risk factors

Fallopian tube pathology (congenital abnormalities,including diethylstilbesterol [DES]exposure,salpingitis)

Prior fallopian tube surgery (tubal ligation,prior EP)

Previous abortion (especially induced abortion)

Endometriosis

Intrauterine device (IUD)use

Hormonally altered tubal transport (estrogen or progesterone administration)

Ovulation induction

In vitro fertilization (including intrafallopian transfer)

Clinical presentation

Abdominopelvic pain

Amenorrhea followed by vaginal bleeding (variable)

Abdominal mass

Hypotension,syncope (from massive ?uid loss)

Diagnosis

Beta-human chorionic gonadotropin (b -hCG)level

Serum progesterone level

Ultrasound evaluation (transabdominal or transvaginal

ultrasound)

Culdocentesis

Suction curettage–chorionic villi sampling

Laparascopy

Laparotomy

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than in EP,but this test is not clinically useful because the individual values sometimes overlap[74,75].A viable intrauterine pregnancy is often differentiated from EP by serial b-hCG determinations,in that the b-hCG level increases faster with a viable intrauterine pregnancy than with EP [37,69].Ectopic pregnancy is,however,best differentiated from intrauterine pregnancy by pelvic ultrasonography with simultaneous b-hCG determi-nation[38,76].Ultrasound?ndings in an intrauterine pregnancy include uteromegaly and a double-decidual sac sign,produced by separation between the decidua vera and capsularis[45].This sac sign is usually detected by conventional abdominal ultrasonography at about4weeks of gestation,when the b-hCG level is greater than6500IU/L(the discriminatory zone)[73],and by transvaginal ultrasonography(TVUS)at about2weeks of gestation when the b-hCG level is greater than1500IU/L because of greater test sensitivity[75].Absence of this sign on abdominal ultrasound study when the b-hCG level is greater than6500IU/L,or on TVUS when the b-hCG level is greater than1500IU/L suggests EP[75]. Both the sensitivity and speci?city of TVUS in conjunction with serum b-hCG level determination are nearly90%[37,77].Absence of chorionic villi in a uterine curettage can con?rm the diagnosis of EP[70].

Ectopic pregnancy is increasingly managed medically[76,78,79].Patients with early,small,and nonruptured EPs with low and declining serum b-hCG levels are occasionally monitored without therapy,because these character-istics are predictors of spontaneous resorption[80].Methotrexate is injected intramuscularly to promote EP absorption in hemodynamically stable women with a nonruptured tubal EP when the mass is less than3.5cm in diameter, gestation is less than6weeks,fetal heart sounds are not detectable,the b-hCG level is low,and bleeding is not evident[81].The serum b-hCG level and sonogram should be repeated to verify therapeutic success[80].

Laparoscopy with salpingostomy or,occasionally,salpingotomy is recommended for EPs smaller than2cm in diameter in the distal third of the oviduct without rupture.In other cases,segmental resection and anas-tomosis are required[48].

The EP ruptures and hemorrhages in about5%of cases.Rupture can cause di?use abdominal pain,rebound tenderness,hypotension,confusion, syncope,anemia,and leukocytosis[68,69].Signs and symptoms are variable [82],however.Shoulder pain suggests free intraperitoneal?uid from intraperitoneal hemorrhage[83].

Culdocentesis can detect hemoperitoneum but is now rarely performed to diagnose rupture because ultrasound is so sensitive and noninvasive. Moreover,a nonbloody aspirate during culdocentesis does not exclude hemoperitoneum in patients with adhesions from prior salpingitis or peritonitis[69].Ectopic pregnancy rupture requires expedient laparotomy, with salpingectomy or hysterectomy,after?uid resuscitation,even if the patient is hemodynamically stable[56].Preoperative abdominal ultrasound helps guide the surgeon.

Ectopic pregnancy causes about 10%of all maternal mortality [84].Mortality from EP has decreased sharply during the last 30years to a current level of 0.4%but remains higher in minority women [37,62].Advances in ultrasonography have contributed to earlier diagnosis,a decreased rate of rupture,and the declining mortality [38,76].

Abdominal pregnancy

Abdominal pregnancy,in which the fetus grows in the peritoneal cavity,occurs in about 1.0of 10,000pregnancies.It usually arises from intra-peritoneal rupture of a tubal pregnancy.Rarely,the blastocyst implants on the liver or https://www.doczj.com/doc/e77514991.html,mon symptoms and signs of abdominal pregnancy include abdominal pain,abdominal tenderness,a closed none?aced cervix,and a palpable mass distinct from the uterus [85].Sonography and other radiologic modalities,as well as serial b -hCG determinations are used to detect and localize an abdominal pregnancy.Surgery is usually necessary because of the risk of rupture and hemorrhage [48].Without surgery,abdominal pregnancy may also result in a lithopedion,an abscess,or rarely a viable infant [63].Small,uncomplicated abdominal pregnancies can be terminated by methotrexate administration.Resolution is monitored by abdominal sonography and serial b -hCG determinations.The placenta is often left in the abdomen after methotrexate administration to avoid intraoperative hemorrhage [63].

Heterotopic pregnancy

In heterotopic pregnancy,intrauterine and ectopic pregnancies coexist.The incidence is about 1in 5000pregnancies [70].The incidence has increased exponentially during the last 2decades because of intrauterine device (IUD)usage;PID [54,70];and increasing infertility treatment with pharmacologic ovulation induction,tubal surgery,and assisted reproduction procedures [70].Abdominal pain is the most common symptom.Serum b -hCG levels are less helpful than in EP because of the concurrent intrauterine pregnancy [86].Abdominal ultrasound is sometimes diagnostic,but laparotomy may be required for the diagnosis [54].The management is complicated by the need to maintain the viable intrauterine https://www.doczj.com/doc/e77514991.html,paroscopy with intraabdomi-nal aspiration may be performed for a small heterotopic pregnancy,but an advanced heterotopic pregnancy requires laparotomy [63].

Spontaneous abortion

Spontaneous abortion,whether threatened,incomplete,or complete,typically presents with vaginal bleeding followed by di?use,crampy lower abdominal or pelvic pain [55].Some patients have no pain or only a backache [55].The pain from spontaneous abortion tends to be milder and 13

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more diffuse than that of EP[72].Medically induced abortion also causes crampy abdominal pain because of prostaglandin administration[87].

Fetal viability is assessed by serum b-hCG levels,serum progesterone levels,and abdominal ultrasonography.Threatened abortion is generally treated by bed rest and analgesia and is sometimes treated by progesterone administration to help preserve the pregnancy[88].

Placental abruption

In placental abruption the placenta prematurely separates from the uterine wall.Placental abruption occurs in about1of80deliveries[89].Risk factors include blunt abdominal trauma,advanced maternal age,multiparity,prior abruption,cocaine abuse,chronic hypertension,preeclampsia or eclampsia, premature rupture of membranes,hypercoagulopathies,and uterine leio-myomas[89,90].Eighty percent of women with placental abruption have vaginal bleeding.Abdominal pain is common and occasionally is severe[72]. Most patients exhibit uterine tenderness and frequent uterine contractions. Severe abruption is associated with maternal disseminated intravascular coagulation(DIC),renal failure,and shock and with fetal distress[89]. Sonography is only moderately sensitive because the echogenicity of fresh blood resembles that of normal placenta[38].Treatment includes intravenous ?uid administration for hypovolemia,packed erythrocyte transfusions for hemorrhage,and prompt delivery of a mature fetus by cesarean section to control the maternal hemorrhage and potentially salvage the fetus. Placenta previa

In placenta previa the placenta is near or over the cervical os so that the os is partially or completely obstructed.Risk factors include advanced maternal age,multiparity,cigarette smoking,and prior cesarean section[91].The incidence is about1in300pregnancies[92].Placenta previa presents in late pregnancy with vaginal hemorrhage,occasionally associated with abdominal pain or painful uterine contractions.The differential diagnosis includes threatened abortion,EP,pregnancy-related liver disease,appendicitis,acute cholecystitis,ovarian torsion,and premature labor.Placenta previa usually presents in the second half of pregnancy,whereas EP presents in the?rst half.

Sonography is usually diagnostic[38].Digital or instrumental probing of the cervix should be avoided,because these maneuvers can precipitate massive vaginal hemorrhage[89].Placenta previa usually requires cesarean section when the fetus is suf?ciently mature.

Placenta previa may be associated with an abnormally adherent placenta. In placenta accreta the placental villi are attached to the myometrium;in placenta increta the villi invade the myometrium;and in placenta percreta the villi penetrate up to the uterine serosa[93].The overall incidence is1in 2000pregnancies[94].Risk factors include multiparity,prior cesarean sections,prior placenta previa,uterine infection,and prior uterine curettage

[93].These disorders are usually diagnosed intrapartum when they mani-fest as hemorrhage during placental delivery [95].Placenta percreta occa-sionally causes antepartum abdominal pain,vaginal bleeding,or hematuria.Intrapartum hemorrhage is treated by ?uid resuscitation,correction of coagulopathy,blood transfusions,and by surgical ligation of the bleeding vessel,selective angiographic embolization of the bleeding vessel,or hysterectomy [95].

Trophoblastic proliferations

Gestational trophoblastic proliferations include hydatiform mole,in-vasive mole,and choriocarcinoma.Hydatiform mole arises from andro-genesis,in which an ovum is fertilized by a paternal haploid sperm that replicates without any maternal chromosomal contribution [96].Hydati-form mole usually produces painless vaginal bleeding.Abdominal sonogram is usually diagnostic.Treatment consists of mole evacuation.About 10%of moles progress to gestational trophoblastic tumors [97].

The most common clinical ?ndings with choriocarcinoma are an abdominal mass and vaginal bleeding,but abdominal pain may occur

[98].Clinical symptoms usually occur after term pregnancy,abortion,or incomplete evacuation of a hydatiform mole.The diagnosis is suggested by persistently elevated b -hCG levels in the absence of a pregnancy.Che-motherapy is indicated for metastatic disease.There is a high cure rate.Premature labor

Premature (preterm)labor is the premature onset of uterine contractions that may result in premature birth [99].Cervical os incompetence,uterine infection,and premature rupture of membranes (PROM)are etiologic factors [99].Symptoms include vaginal discharge or spotting,lower abdominal pain,back pain,urinary urgency,and vaginal pressure.Both the diagnosis and therapy are evolving.Cervical examination is followed by external and internal fetal monitoring and high-resolution sonography.Tocolytic therapy is usually recommended [99].

Gynecologic disorders

Adnexal masses

Ultrasonography has increased the rate of detection of adnexal masses during pregnancy to 2%[100].The pathology ranges from asymptomatic nonneoplastic ovarian cysts to the surgical emergencies of ovarian torsion,ruptured ovarian cyst,and tubo-ovarian abscess.About half of adnexal masses are less than 5cm in diameter,about one quarter are between 5and 10cm in diameter,and about one quarter are more than 10cm in diameter 15

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16M.S.Cappell,D.Friedel/Gastroenterol Clin N Am32(2003)1–58 [101].Ninety-?ve percent are unilateral[102].Most adnexal masses are nonneoplastic cysts,including the corpus luteum cyst and the follicle cyst [102].Both of these cysts usually involute by midterm[38].Cystic teratomas and cystadenomas are the most common benign ovarian neoplasms during pregnancy[103,104].Malignancies,including germ cell tumors,low-grade ovarian cancers,and invasive epithelial ovarian cancers,comprise3%of ovarian masses during pregnancy,for an incidence of1in5000pregnancies [103,105].Most women with ovarian cancer present with stage I disease during pregnancy[105].Cancers from the gastrointestinal tract or elsewhere rarely metastasize to the ovaries[106].

Most adnexal masses are asymptomatic and are incidentally detected by sonography[38,101,102].Even ovarian cancer is often asymptomatic [82,103].Symptoms can include vague abdominal pain,abdominal dis-tension,and urinary frequency[103].Torsion,hemorrhage,or rupture produces severe abdominal pain.Ten percent to15%of adnexal masses undergo torsion[103].Germ cell tumors may cause endocrine dysfunction, especially virilization[105].

The management of an ovarian mass during pregnancy is controversial [100].Abdominal sonography is highly sensitive at mass detection but is insuf?ciently accurate at distinguishing malignant from benign lesions[38]. Surgery is indicated for likely or certain carcinoma or for an acute abdomen caused by complications such as torsion or hemorrhage.Asymptomatic ovarian masses with benign sonographic features are usually followed closely by serial sonography into the second trimester,the optimal time for abdominal surgery in terms of maternal and fetal safety[102,103,105].First-trimester surgery is associated with fetal wastage,and third-trimester surgery is associated with premature https://www.doczj.com/doc/e77514991.html,paroscopy often suf?ces to extirpate the mass while preserving the pregnancy[107].Patients with malignancy detected during late pregnancy are candidates for prompt cesarean section[100,103].Prognosis depends on the histologic grade and pathologic stage of the cancer[103,105,107].

Adnexal torsion

Adnexal torsion occurs in about1of1800pregnancies,an incidence similar to that of acute appendicitis[108].About one quarter of adnexal torsions occur during pregnancy[109],because of the greater laxity of the tissue supporting the ovaries and oviducts during pregnancy[110].Torsion usually occurs between the sixth and fourteenth weeks of gestation.Both ovarian cysts and tumors,particularly the benign cystic teratoma,may undergo torsion,but many torsions are idiopathic or occur about extra-ovarian structures[111].Right-sided torsion is more common than left-sided torsion[109,111].

The clinical presentation is variable[111,112].The lower abdominal pain is often sharp and sudden in onset and may last from several hours to days.

Intermittent pain may indicate detorsion or devitalization of sensory nerves

[108].Patients often have nausea and emesis.Signs include unilateral lower quadrant tenderness,a palpable adnexal mass,cervical tenderness,or rebound tenderness from peritonitis [111].Leukocytosis is common.

The diagnosis is often missed.Right-sided adnexal torsion may be di?cult to di?erentiate from appendicitis.Other diagnostic considerations include a ruptured ovarian cyst or EP [72].Ultrasonography,including duplex scanning,is valuable in the detection of adnexal masses,particularly cysts,but additional diagnostic imaging tests may be necessary.Adnexal torsion,diagnosed before tissue necrosis,is managed with adnexa-sparing laparoscopic detorsion,followed by progesterone therapy if the corpus luteum is removed [113].Laparotomy with salpingo-oophorectomy is necessary if necrosis or peritonitis has occurred.

Pelvic inflammatory disease

The term pelvic in?ammatory disease (PID)refers to infection of the upper genital tract including the oviducts.It is characterized by the triad of lower abdominal pain,pyrexia,and vaginal discharge.Management of PID during gestation is complicated in terms of antibiotic selection and whether to continue the pregnancy [114].Complications include salpingitis and tubo-ovarian abscess.Patients may become infertile or have a high risk for EP

[67,115,116].

Tubo-ovarian abscess

Tubo-ovarian abscess is an emergency associated with maternal mortal-ity and fetal wastage [115].It can result from pelvic surgery,assisted reproduction,bowel perforation,appendicitis,infected EP,pelvic malig-nancy,and PID,especially with chlamydial infection [116,117].Abdominal pain,pyrexia,a palpable mass,and leukocytosis commonly occur.Magnetic resonance imaging,CT scanning,or sonography are helpful in the diagnosis,but laparoscopy is often required for con?rmation.Treatment includes ?uid resuscitation,parenteral antibiotics,and expedient surgery unless the abscess is small,well contained,and amenable to radiologic drainage [118].Endometriosis

Endometriosis is a common cause of abdominal pain in younger women.Endometriosis usually does not cause infertility;women with endometriosis usually have an uncomplicated pregnancy and delivery [119].Ovarian endometriosis is associated with genetic abnormalities and with clear cell and endometrioid carcinoma [120].Endometrioid cysts account for about 4%of adnexal masses during pregnancy.Peritonitis from endometrial cyst rupture may be dif?cult to differentiate from appendicitis or EP [121].17

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18M.S.Cappell,D.Friedel/Gastroenterol Clin N Am32(2003)1–58

Uterine leiomyoma

Uterine leiomyomas(?broids)are well-circumscribed,benign,smooth muscle tumors.Careful pathologic examination reveals up to80%of women of reproductive age have uterine leiomyomas[122],but only about 4%of pregnant women have sonographically evident uterine leiomyomas, about12%of which are multiple[123].Symptoms include uterine bleeding, pelvic pressure,urinary urgency,and abdominal https://www.doczj.com/doc/e77514991.html,rge and strategically located leiomyomas can cause infertility[124].Small leiomyo-mas are usually asymptomatic.

Leiomyomas tend to become smaller during pregnancy,and leiomyomas initially less than5cm in diameter usually involute completely during pregnancy[125].Complications occur in about1in500pregnancies[126]. Large leiomyomas can undergo hemorrhagic infarction resulting in the painful myoma syndrome[127].Symptoms may be minimal or may include severe abdominal pain,nausea,emesis,and pyrexia[128].Ultrasonography and MR imaging are usually diagnostic[129].Treatment consists of bed rest and nonsteroidal anti-in?ammatory drugs(NSAIDs),but these drugs should be avoided after the thirty-fourth week of gestation because they affect labor[126,127].Other complications of leiomyomas are premature rupture of membranes,placental abnormalities,uterine rupture(especially after prior myomectomy),dystocia,more frequent cesarean delivery, postpartum hemorrhage,and puerperal sepsis[130].

Uterine rupture

Uterine rupture is rare during pregnancy.Risk factors include prior ce-sarean section,especially with lower uterine incision,pharmacologic induc-tion of labor with oxytocin or prostaglandins,multiparity,placental percreta, fetal malpresentation,and blunt trauma[131,132].Patients often present in shock with diffuse abdominal pain.Treatment includes?uid resuscitation, emergency surgery,and fetal delivery.Hysterectomy is often required. Fetal demise is likely with intraabdominal expulsion of the fetus[131,132]. Gastrointestinal disorders

Acute appendicitis

Acute appendicitis is the most common nonobstetric surgical emergency during pregnancy,with an incidence of about 1.0in1000pregnancies [27,133,134].Appendicitis may occur at any time during pregnancy but is slightly more likely during the second trimester[27,135].Pregnancy does not predispose to appendicitis[133].Appendiceal obstruction,usually from an appendicolith,is the primary pathophysiologic event,although stasis and other factors are also implicated[135].As the appendiceal lumen distends,

the patient initially experiences poorly localized pain [24].Severe luminal distension,mural in?ammation and edema,and bacterial translocation produce somatic pain that becomes severe and well localized in the right lower quadrant [22].

Although abdominal pain is often localized to the right lower quadrant at McBurney’s point,displacement of the appendix by the gravid uterus during late pregnancy may cause the point of maximal abdominal pain and tenderness to migrate superiorly and laterally from McBurney’s point [25].Other clinical ?ndings include anorexia,nausea,emesis,pyrexia,tachycardia,and abdominal tenderness [136].Periappendiceal in?ammation or peritonitis causes involuntary guarding and rebound tenderness.Involuntary guarding and rebound tenderness are less reliable signs of peritonitis in late pregnancy because of abdominal wall laxity [26,27].Rectal or pelvic tenderness may occur in early pregnancy but is unusual in late pregnancy as the appendix migrates from its pelvic location [10,26].Patients may have signi?cant leukocytosis,a predominance of neutrophils in the leukocyte differential,an abnormal urinalysis,and nonspeci?c electrolyte abnormalities [137,138].

The diagnosis is made clinically without overreliance on radiologic imaging.Sonography may demonstrate appendiceal mural thickening and periappendiceal ?uid,but the ?ndings are usually nonspeci?c and mostly help to exclude other pathology,such as an adnexal mass [38,45].Computed tomography is more accurate but exposes the fetus to radiation [139].

The diagnosis is more frequently missed in pregnant than in nonpregnant patients [138]because:

Leukocytosis,a classic sign of acute appendicitis,occurs physiologically during pregnancy.

Nausea and emesis,common symptoms of acute appendicitis,are also common during pregnancy.

The abdominal pain is sometimes atypically located because the growing gravid uterus displaces the appendix laterally and superiorly.

Other diseases are often confused with appendicitis.The di?erential diagnosis for appendicitis in pregnancy is shown in Box 2.

Up to one quarter of pregnant women with appendicitis develop ap-pendiceal perforation [140].Appendiceal displacement predisposes to rapid development of generalized peritonitis after perforation because the omentum is not nearby to contain the infection [26].

Appendicitis during pregnancy requires surgery [141].Preoperative management during pregnancy is challenging (Table 2).Patients require intravenous hydration and correction of electrolyte abnormalities [142].Antibiotics are usually administered for uncomplicated appendicitis and are absolutely required for appendicitis complicated by perforation,abscess,or peritonitis [143].Penicillins (including ampicillin/sulbactam),cephalospor-ins,clindamycin,and gentamicin are considered safe during pregnancy [83].Quinolones are not recommended because safer alternatives are available 19

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20M.S.Cappell,D.Friedel/Gastroenterol Clin N Am32(2003)1–58

Box2.Differential diagnosis of appendicitis during pregnancy Gynecologic conditions

Ruptured ovarian cyst

Adnexal torsion

Pelvic in?ammatory disease or salpingitis

Endometriosis

Obstetric causes

Abruptio placenta

Chorioamnionitis

Endometritis

Fibroid degeneration

Labor(preterm or term)

Viscus perforation after abortion

Other causes

Exacerbation of Crohn’s disease

Diverticulitis(right side)

Cholecystitis

Pancreatitis

Mesenteric lymphadenitis

Gastroenteritis

Colon cancer

Intestinal obstruction

Pyelonephritis

Urolithiasis

Hernia(incarcerated inguinal or internal)

[144].Clindamycin is preferred to metronidazole for anerobic coverage,even though both are category B drugs in pregnancy[145].Clindamycin and gentamicin is a relatively inexpensive,effective,and safe antibiotic https://www.doczj.com/doc/e77514991.html,paroscopy may be considered during the?rst2trimesters for nonperforated appendicitis or when the diagnosis is uncertain[146]. Appendectomy is recommended even if appendicitis is not evident at surgery [136,138,140].Maternal mortality from appendicitis has diminished sig-ni?cantly and is currently about0.1%without perforation but exceeds 4%with perforation[133,134].Fetal mortality is less than2%without perforation but exceeds30%with perforation[133].Mortality is usually related to delayed diagnosis[27,136,140].Preterm labor is common,but preterm delivery is unusual[138].

【英语词汇】pain、ache、sore、distress、anguish、misery、agony、torment

【英语词汇】 pain、ache、sore、distress、 anguish、misery、agony、torment pain ache sore 这三个名词均含有身体“疼痛”之意。 pain 指一般的痛,也可指剧痛,疼痛范围可以是局部或全身,时间可长可短。 1)He could feel the pain again as the medicine wore away. 药性消退后,他又感到疼痛了。 2)He was working in the garden, when he felt a sharp pain in the abdomen. 他正在花园里干活,突然他感觉腹部剧烈疼痛。 3)This medicine will help to relieve you from your pain. 这种药将帮助你解除疼痛。 ●pain也可指精神上的痛苦。 1)It gave us much pain to learn of the news. 我们听到这个消息十分悲痛。 2)Do you really think enjoyment should be based on others' pain? 你以为一个人应该把自己的快乐建筑在别人的痛苦上面吗 ?

ache多指人体某一器官持续的隐隐的疼痛,常放在身体部位名词后构成病痛名 称,如: toothache 牙痛、head ache 头痛、stomach ache 胃痛。有时可与pain 换用。 1)She felt an ache / pian in her back. 她感到后背隐隐作痛。 2)The dull ache in his head turned out to be suffering from brain tumor. 他的头隐隐作痛,结果竟是罹患脑瘤。 3)Poor posture can cause neck ache, headaches and breathing problems. 姿势不当会导致颈部疼痛、头痛和呼吸困难。 4)Sedentary will lead to muscle ache, stiff neck and headache and dizziness. 久坐不动会引发全身肌肉酸痛、脖子僵硬和头痛头晕。 ●ache也可指精神上的痛苦。 1)There was a little ache in her fancy of all he described. 她想象着他所描绘的一切,心里不禁有些刺痛。 2)The ache in the her body is no worse than the ache in her heart. 她身体的疼痛比不上她心头的疼痛。 ●ache可用作动词。 1)Mother says she is aching all over with fatigue.

腹痛的辨证论治

腹痛的辨证论治 一、辨证要点 1、辨寒热虚实腹痛拘急冷痛,疼痛暴作,痛无间断,腹部胀满,肠鸣切痛,遇冷痛剧,得热则痛减者,为寒痛;腹痛灼热,时轻时重,腹胀便秘,得凉痛减者,为热痛;痛势绵绵,喜揉喜按,时缓时急,痛而无形,饥则痛增,得食痛减者,为虚痛;痛势急剧,痛时拒按,痛而有形,疼痛持续不减,得食则甚者,为实痛。 2、辨在气在,血腹痛胀满,时轻时重,痛处不定,攻撑作痛,得暖气矢气则胀痛减轻者,为气滞痛;腹部刺痛,痛无休止,痛处不移,痛处拒按,入夜尤甚者,为血瘀痛。 3、辨急缓突然发病,腹痛较剧,伴随症状明显,因外邪入侵,饮食所伤而致者,属急性腹痛;发病缓慢,病程迁延,腹痛绵绵,痛势不甚,多由内伤情志,脏腑虚弱,气血不足所致者,属慢性腹痛。 4、辨部位诊断腹痛,辨其发生在哪一位置往往不难,辨证时主要应明确与脏腑的关系。大腹疼痛,多为脾胃、大小肠受病;胁腹、少腹疼痛,多为厥阴肝经及大肠受病;小腹疼痛,多为肾、膀胱病变;绕脐疼痛,多属虫病。 二、治疗原则 腹痛的治疗以“通”为大法,进行辨证论治:实则泻之,虚则补之,热者寒之,寒者热之,滞者通之,瘀者散之。腹痛以“通”为治疗大法,系据腹痛痛则不通,通则不痛的病理生理而制定的。肠腑以通为顺,以降为和,肠腑病变而用通利,因势利导,使邪有出路,腑气得通,腹痛自止。但通常所说的治疗腹痛的通法,属广义的“通”,并非单指攻下通利,而是在辨明寒热虚实而辨证用药的基础上适当辅以理气、活血、通阳等疏导之法,标本兼治。如《景岳全书·心腹痛》曰:“凡治心腹痛证,古云痛随利减,又曰通则不痛,此以闭结坚实者为言。若腹无坚满,痛无结聚,则此说不可用也。其有因虚而作痛者,则此说更如冰炭。”《医学真传·腹痛》谓:“夫通则不痛,理也。但通之之法,各有不同,凋气以和血,调血以和气通也;下逆者使之上行,中结者使之旁达,亦通也;虚者助之使通,寒者温之使通,无非通之之法也。若必以下泄为通,则妄矣。” 三、分证论治 寒邪内阻 症状:腹痛急起,剧烈拘急,得温痛减,遇寒尤甚,恶寒身蜷,手足不温,口淡不渴,小便清长,大便自可,苔薄白,脉沉紧。 治法:温里散寒,理气止痛。 方药:良附丸合正气天香散。 方中高良姜、干姜、紫苏温中散寒,乌药、香附、陈皮理气止痛。若腹中雷鸣切痛,胸胁逆满,呕吐,为寒气上逆者,用附于粳米汤温中降逆;若腹中冷痛,周身疼痛,内外皆寒者,用乌头桂枝汤温里散寒;若少腹拘急冷痛,寒滞肝脉者,用暖肝煎暖肝散寒;若腹痛拘急,大便不通,寒实积聚者,用大黄附子汤以泻寒积;若脐中痛不可忍,喜温喜按者,为肾阳不足,寒邪内侵,用通脉四逆汤温通肾阳。 湿热积滞 症状:腹部胀痛,痞满拒按,得热痛增,遇冷则减,胸闷不舒,烦渴喜冷饮,大便秘结,或溏滞不爽,身热自汗,小便短赤,苔黄燥或黄腻,脉滑数。

常见疾病自我治疗

常见疾病自我治疗 【眼、耳、鼻、喉科疾病】 【黑眼圈】 1.冰敷可收缩血管帮助消肿,也减少引起黑眼圈的内出血 2.避免阿司匹林,因其为抗凝血剂,使血液不易凝结,会使造成黑眼圈的出血不易停止 3.勿擤鼻涕,以免因压迫与眼眶相邻的鼻窦,而使空气注入眼皮下,不但造成肿大,也会增加感染机会 【眼睛疲劳】 1.注意光线,太暗的灯光使眼睛容易疲劳,使用能提供明暗对比的柔和灯光较佳 2.每二至三个小时连续使用计算机,应将眼睛移开计算机十至十五分钟,让眼睛休息 3.减弱屏幕的光线,让屏幕的亮度降低,可避免疲劳 4.将计算机套上全黑的厚纸板,使屏幕光线可以降到很低 5.闭眼休息,是消除眼睛疲劳的好方法 6.将毛巾浸入茶里,用来敷眼十至十五分钟,可消除眼睛疲劳 7.将双手摩擦生热,再盖住眼睛,勿压迫双眼,深缓地呼吸,有助于消除眼睛疲劳 8.眨眼三百下,有助于清洁眼睛同时达到按摩效果 【眼布血丝】 1.睡眠充足有助于滋润眼睛,减少眼睛的血丝 2.清洁眼睑,以免因残屑、油脂、细菌、化妆品等尘屑导致眼睛发炎,布满血丝 3.使用人工泪液,减少干涩 4.以冷毛巾敷眼部,可收缩血管,滋润眼睛 【夜盲症】 1.如果坐在黑暗中五分钟还看不到的话,可能就是患了夜盲症 2.维他命A影响人的夜间视觉能力,若有夜盲的症状,服用大量维他命A可在数小时获得改善,但服用大量维他命A须经医师同意 3.增加夜间开车的可见度,保持前灯干净,在光线不足时,避免戴太阳眼镜,有助于增加可见度 4.夜盲者应避免夜间开车 5.事先计划路线,选择交通流量较小的道路,可减少夜间开车的麻烦,若天况不佳,最好不要开车 【结膜炎】 1.以温毛巾敷眼 2.保持干净,以棉球沾清水擦拭分泌物,可加速复原 3.可以将婴儿洗发精与温水以一比十制成溶液,用棉球沾湿擦拭眉毛,可软化清洁眼睑与睫毛 4.勿与任何人共享毛巾、手帕,以免互相传染 5.游泳时请戴泳镜 6.如果你的眼睛痒得像是被蚊子咬,眼内也有成丝的脓,那可能是过敏性结膜炎,最好以抗组织胺的成药,并加以冷敷

常见名词辨析通用版

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腹痛中医诊疗方案

急性腹痛 急性腹痛(acute abdominalgia)是指起病急骤,以胃脘部以下,耻骨以上的围发生的疼痛而言。 本篇所讨论的腹痛主要是科围的急性腹痛,同时也将外科、妇科急腹症列出以利于鉴别。 常见病因 “腹中乃脏腑之郛郭”。由于脾胃、肝、胆、肾、膀胱、大小肠等脏腑均居其中,手足三阴、足阳明、足少阳经及冲、任、带三脉亦循行腹部,因此腹痛的成因很复杂,既可因腹脏器的病变引起,又可为腹外疾患所致。 (一)消化系统疾病:如急性胃炎、消化性溃疡穿孔、急性胃扩、急性胃扭转、急性胃潴留、胃痉挛、急性肠梗阻,急性胆囊炎,胆石症、胆道蛔虫症,急性胰腺炎等。 (二)泌尿生殖系统疾病:急性肾盂肾炎、肾石病、肾下垂、急性盆腔炎、异位妊娠、卵巢囊肿扭转、卵巢破裂、痛经等。 (三)分泌及代障碍疾病:糖尿病酮症酸中毒、尿毒症、甲状腺功能亢进症、腹型嗜铬细胞瘤、急性肾上腺皮质功能不全、低血糖症、血卟啉病、高脂血症。 (四)神经系统疾病:腹型癫痫、腹壁神经痛,神经官能性腹痛。 (五)中毒性疾病:如铅中毒、砷中毒、汞中毒、食物中毒等。 (六)传染病:流行性出血热、登革热、登革出血热、伤寒、急性细菌性痢疾、急性阿米巴痢疾等。 (七)腹外脏器疾病:胸部疾病,如细菌性肺炎、急性充血性心力衰竭、急性心肌梗塞、急性心包炎。

中医学认为,急性腹痛常因气、血、寒、热、湿、食、虫等因素引起脏腑气机升降失和,经络血脉阻滞,即所谓“不通则痛”。 临床思维 由于引起急性腹痛的疾病种类繁多,病因复杂。因此,在短时间,准确地寻找病因,迅速地确诊甚为必要。科的急性腹痛多以消化系统疾病所致,但必须注意与外科、妇科的急腹症相鉴别。为了确诊必须详尽地了解病史、起病诱因、发病方式,然后再根据腹痛的部位、性质、程度、规律及伴随症状,作出综合分析。先考虑常见病,后考虑少见病,对某些难以确诊的疾病,尚须借助必要的辅助检查,如心电图、X线、B型超声波以及CT等。 (一)辨腹痛的部位:一般最先出现疼痛或疼痛最明显的位置多为病变部位。如剑突下疼痛多为急性胃肠炎、胃或十二指肠溃疡、急性胃穿孔、急性胃扩;中上腹疼痛应考虑急性胰腺炎;右上腹痛常见胆石绞痛、急性胆囊炎;腰部疼痛常见肾及输尿管结石、急性肾盂肾炎,下腹疼痛常见急性盆腔炎、异位妊娠、痛经;左下腹疼痛常见于急性菌痢;右下腹疼痛多为急性阑尾炎;如果腹痛部位呈弥漫性或部位不定则应考虑急性机械性肠梗阻、急性穿孔、胃肠神经官能症、急性坏死性肠炎等。 (二)辨腹痛的性质:如持续性绞痛常提示空腔脏器发生痉挛或出现阻塞性、扭转性病变、反复间歇发作亦是其特征之一,如肾绞痛,胆绞痛,胃肠痉挛;持续性疼痛伴阵发性加剧,常见于炎症与梗阻同时并有,如胆石症并发胆囊炎;刀割样剧痛常见于消化性溃疡急性穿孔;阵发性钻顶样疼痛多为胆道蛔虫症;持续性钝痛多表示炎症性、出血性或郁血性病变,如大叶性肺炎导致的腹痛、急性肝脓肿等。 (三)辨腹痛的程度:腹痛的程度在一般情况下可反映出疾病的种类和病

英语近义词辨析大全(超强合集)

1 a bit/ a little 这两个词都意为“一点儿”有时可以互换,但有时不能。 Ⅰ.二者作程度副词修饰形容词、副词、动词或比较级时,意义相同,为“一点儿”“有些”。如: ①I am a bit / a little hungry. 我有点饿。 ②He walked a bit / a little slowly. 他走路有点慢。 Ⅱ.二者都可以作名词词组,充当主语或宾语。如: ①A little / bit is enough for me. 我有一点儿就够了。 ② I know only a little / a bit about her. 我对她的情况只了解一点。 Ⅲ。a little可直接修饰名词;a bit后须加of才可以。如: ①.There is a little water in the bottle. = There is a bit of water in the bottle. [注意] a little of后的名词通常特指,表“……中的一些”,如: ①May I have a little of your tea? Ⅳ. 否定形式 not a little 作状语,相当于very/ quite, “很”,“非常”;作定语和宾语时,相当于much, 意为“许多”。而not a bit 作状语时,相当于not at all, 意为“一点也不”,作宾语时则相当于not much. Eg: ①He is not a little (=very) hungry. 他饿极了。 ②He is not a bit (=not at all) hungry.他一点也不饿。 ③She ate not a little (=much). 她吃得很多。 Ⅴ. Not a bit中的not 可以分开使用;not a littl e中的not 则不能分开。Eg: ①He felt not a bit tired. = He didn’t feel a bit tired. 他觉得一点也不累。 ②He felt not a little tired. 他觉得非常累。但不能说:He didn’t fell a little tired. §2 a few/ few/ a little/ little Ⅰ. a few和few修饰可数名词,a little和little修饰不可数名词;a few和a little表示肯定意义,few和little表示否定意义,可受only修饰。如: ①Few people will agree to the plan because it’s too dangerous. ②This text is easy to understand though there are a few new words in it. ③There is little water left in glass. Will you please give me some ④Don’t worry, we have a little time left. ⑤ §3 about/ on Ⅰ.about “关于”表示的内容较为普通或指人时用它。侧重于叙事,多用于叙述个人经历和事迹,故事内容涉及一些较浅的问题。是非正式用语。 Ⅱ.on “关于”侧重于论述政治理论,国际形势,学术报告等。也就是说,当表示这本书,这篇文章或演说是严肃的或学术性的可供专门研究这一问题的人阅读时用。eg: This is a text book on African history. 这是一本关于非州历史的教科书。[注]:它们有时可通用。 §4 above/over/on/upon Ⅰ. 方位介词,“在……之上” Ⅱ. above 着重指:在……上方,不一定含有垂直在上的意思。反义词为:below. ①The sun rose above the horizon. 太阳升到了地平线上。 ②The aero plane flew above the clouds.飞机在云层上飞行。 Ⅲ.over 表盖在……上面,或铺在……上面。此时不能用above.代替。含有垂直在上的意思。反义词为under. ①Spread the tablecloth over the table.把桌布铺在桌子上。 Ⅳ. on 含有与表面相接触的意思。 ①The book is on the desk. ②There is an oil painting on the wall. 墙上有一幅油画。 Ⅴ.upon 也含有和表面相接触的意思。与on没有多大的区别,但较正式,口语中较少用。 ①He laid his hand upon the boy’s head. 他把手放在孩子的头上。 [注] up 与以上几个不同,它表示向上方或高处,含有由下而上,由低而高的意思。常和表示运动的动词连用。作副词时,表示在上方或高处。

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