TOTAL PHYSIOLOGIC CORRECTION OF TRICUSPID ATRESIA WITH ATRIAL SEPTAL DEFECT-VENTRICULAR SEPTAL DEFECT CLOSURE AND A RIGHT ATRIUM-RIGHT VENTRICLE NON-VALVED CONDUIT: CASE REPORT

An 18-year-old woman underwent total physiologic correction of tricuspid atresia (atrial septal defect-ventricular septal defect closure and a right atrium-right ventricle non-valved conduit). Postoperative studies documented excellent hemodynamic results. The patient remains asymptomatic 6 months after surgery.     

缺氧对右心室最大心肌血流量的影响

为了探讨缺氧对冠状血管贮备力的影响,我们观察了缺氧时大鼠血流动力学及右心室最大心肌血流量的变化。结果表明,急性缺氧引起ＰａＯ２、心输出量及氧运送量降低,但右心室心肌血流量增加,右心室最大与安静血流量比值降低。慢性缺氧时ＰａＯ２降低,血球比积和右心室重量指数增加,氧运送量和右心室血流量正常,但最大血流量降低,小动脉增厚、外膜胶元增加。以上结果提示,慢性缺氧对冠状血管贮备减少可能是小动脉壁增厚、外膜胶元增加和血液粘滞性增加及右心室肥大的结果。     

RIGHT SINUS OF VALSALVA ANEURYSM RUPTURE INTO THE RIGHT ATRIUM: PRE- AND POSTOPERATIVE ECHOCARDIOGRAPHIC FINDINGS

Echocardiographic features of a patient with sinus of Valsalva aneurysm rupture into the right atrium are discussed. An abnormal echo representing the aneurysmal sac was seen in the anterior aortic root. Other abnormal echoes were demonstrated in the right atrium. Flutter was visible in systole and diastole in the tricuspid area. The pulmonic valve echogram was normal. After surgical repair, the above findings disappeared.