上腹部CT 各个层面
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迷走神经反射较常见,发生 率3%~5%。
多为良性经过,但合并严重瓣 膜病及冠心病者可出现严重 后果。
典型表现
血压迅速下降(<90/60 mm Hg) 心率进行性减慢(<50次/min) 面色苍白、出汗、皮肤湿冷 恶心及呕吐、呼吸减慢、躁动等 可伴有胸闷、气短, 严重可出现神志模糊、意识丧失等 。