Dohrn K
Zentralbl Gynakol. 1985;107(8):478-84.
The staging of pregnant women with heart disease into four groups according to the recommendations of the New York Heart Association (NYHA) cannot express exactly the danger of sudden cardiac deterioration threatening these patients during gestation.--This classification is a subjective one, depending on the complaints of the patients only.--About 100 women with different heart diseases have been tested by ergometric bicycle work during pregnancy. The results have been used for classification according to the NYHA scheme.--The functional endurance capacity tested by bicycle work is a rather objective method. It allows to differentiate between stage II and III (NYHA) exactly. This decision has to be made often in the treatment of pregnant women with heart failure, but it remains uncertain, if only complaints and clinical state can be made use of.
根据纽约心脏协会（NYHA）的建议将患有心脏病的孕妇分为四组，并不能准确表达出妊娠期间威胁这些患者的心脏突然恶化的危险。——这种分类是主观的，仅取决于患者的主诉。——约100名患有不同心脏病的女性在孕期接受了踏车运动测试。测试结果已用于根据NYHA方案进行分类。——通过踏车运动测试的功能耐力是一种较为客观的方法。它能够准确区分NYHAⅡ级和Ⅲ级。在治疗心力衰竭的孕妇时，经常需要做出这种区分，但如果仅依据主诉和临床状态，则仍不确定。
