心脏收缩间期（STI）测定左心室功能在临床应用已久，我们发现三例希汉氏综合征患者，有中一重度左心功能异常，以往临床报道尚属少见，现将临床资料简单报告如下：女性，年龄30－40岁左右，均有产后大出血病史，主要症状：心慌，胸闷，头晕，无力，浮肿，闭经等。体直：呈慢性 Cardiac systolic interval (STI) determination of left ventricular function has been clinically used for a long time, we found that three cases of Schwann’s syndrome patients, there are moderate to severe left ventricular dysfunction, previous clinical reports are still rare, now a simple clinical report As follows: Female, age 30-40 years old, have a history of postpartum hemorrhage, the main symptoms: palpitation, chest tightness, dizziness, weakness, edema, amenorrhea and so on. Body straight: was chronic