Kojic E M, Hardarson T, Sigfusson N, Sigvaldason H
Department of Medicine, National University Hospital, Reykjavik, Iceland.
J Intern Med. 1999 Jul;246(1):81-6. doi: 10.1046/j.1365-2796.1999.00521.x.
The objectives of this study were to find the prevalence of third-degree atrioventricular block in representative population sample and to estimate its prognostic significance. Most earlier studies have been performed on hospital patients and some professional groups.
In the Reykjavik Study, a prospective cardiovascular population study, 9139 men and 9773 women aged 33-79 years were examined in 1967-91. Electrocardiograms were taken and coded according to the Minnesota code. Third-degree atrioventricular block was found in 11 persons, seven male and four female, an overall prevalence of 0.04%. All of these individuals had signs of dysrhythmia on electrocardiograms taken later, and in addition some other heart disease. The heart block was temporary in seven individuals (64%); six (55%) needed a pacemaker.
The prevalence of third-degree atrioventricular block in this general population was low. The block was temporary in the majority of subjects. All had some underlying heart disease, which may affect the prognosis more than the heart block. Fewer subjects than expected were found to need a pacemaker.
本研究的目的是在具有代表性的人群样本中找出三度房室传导阻滞的患病率，并评估其预后意义。大多数早期研究是针对住院患者和一些专业群体进行的。
在雷克雅未克研究中，一项前瞻性心血管人群研究，于1967年至1991年对9139名年龄在33至79岁的男性和9773名年龄在33至79岁的女性进行了检查。根据明尼苏达编码对心电图进行记录和编码。发现11人患有三度房室传导阻滞，7名男性和4名女性，总体患病率为0.04%。所有这些人在后来的心电图检查中都有节律异常的迹象，此外还有一些其他心脏病。7人（64%）的心脏传导阻滞是暂时的；6人（55%）需要起搏器。
在这一普通人群中，三度房室传导阻滞的患病率较低。大多数受试者的传导阻滞是暂时的。所有人都有一些潜在的心脏病，这可能比心脏传导阻滞对预后的影响更大。需要起搏器的受试者比预期的少。
