RATE & RHYTHM
Arrhythmias are detected either because they present with
symptoms or detected during the course of monitoring. Arrhythmias causing sudden death, syncope, or near syncope require further evaluation and treatment unless they unlikely to recur (eg, electrolyte abnormalities or acute myocardial infarction). Controversy over when and how to evaluate and treat rhythm disturbances that are not symptomatic but are possible markers for more serious abnormalities ( eg, nonsustained ventricular tachycardia).
Arrhythmia
Conduction and anatomy of heart
Conduction system
RATE & RHYTHM
Stable SVT is generally well tolerated in patients
without underlying heart disease!!!!!??? but may lead to myocardial ischemia or congestive heart failure in patients with coronary disease, valvular abnormalities, and systolic or diastolic myocardial dysfunction. Ventricular tachycardia, if lasting >10~30 secs, often results in hemodynamic compromise and is more likely to deteriorate into ventricular fibrillation.
