Lee K O, Choo M H
Department of Medicine, National University Hospital, Singapore.
Ann Acad Med Singap. 1993 Nov;22(6):945-7.
Pericardial tamponade is a rare complication of pericardial effusion associated with hypothyroidism. In myxedematous patients with pericardial effusion, the occurrence of paradoxical tachycardia may be a clue that pericardial tamponade is impending or has occurred. This should lead to urgent investigations, particularly echocardiography, to confirm the diagnosis so as to allow prompt treatment. Two patients who presented with cardiac tamponade from severe hypothyroidism are described. There was a paradoxical association of a low voltage QRS complex on the electrocardiogram with a fast ventricular rate in both patients. This may be a useful warning sign in patients with impending cardiac tamponade in hypothyroidism if confirmed by further cases.
心包填塞是甲状腺功能减退症相关的心包积液的一种罕见并发症。在患有心包积液的黏液性水肿患者中，反常性心动过速的出现可能提示心包填塞即将发生或已经发生。这应促使进行紧急检查，尤其是超声心动图检查，以确诊并进行及时治疗。本文描述了两名因严重甲状腺功能减退症出现心脏填塞的患者。两名患者的心电图均显示QRS波群低电压与心室率加快的反常关联。如果能有更多病例证实，这可能是甲状腺功能减退症患者即将发生心脏填塞的一个有用警示信号。
