Al Kasab S, Ribeiro P, Al Zaibag M
Br Heart J. 1987 Aug;58(2):136-41. doi: 10.1136/hrt.58.2.136.
Percutaneous double balloon pulmonary valvotomy was performed on seven consecutive adult patients (mean age 26 years) with congenital pulmonary valve stenosis. The peak systolic transvalvar pressure gradient was significantly reduced from a mean (SD) of 104(30) to 24.3(6) mm Hg. This haemodynamic improvement was maintained at six week follow up. In six patients pulmonary infundibular spasm developed immediately after valvotomy; however, these patients showed considerable haemodynamic improvement at the six week follow up. During balloon inflation the heart rate did not fall below 60 beats/minute and the systemic aortic pressure was maintained above 90 mm Hg. Early results indicate that percutaneous double balloon valvotomy in adults is an effective treatment for isolated pulmonary valve stenosis. Theoretically the two balloons provide a venting area during inflation. This has the advantage of preventing bradycardia or systemic hypotension during prolonged balloon inflation.
对7例连续性成年先天性肺动脉瓣狭窄患者（平均年龄26岁）实施了经皮双球囊肺动脉瓣切开术。收缩期跨瓣峰值压力阶差从平均（标准差）104（30）mmHg显著降至24.3（6）mmHg。这种血流动力学改善在术后6周随访时得以维持。6例患者在瓣膜切开术后立即出现肺动脉漏斗部痉挛；然而，这些患者在6周随访时显示出显著的血流动力学改善。在球囊扩张过程中，心率未降至60次/分钟以下，体循环主动脉压维持在90mmHg以上。早期结果表明，经皮双球囊瓣膜切开术对成人孤立性肺动脉瓣狭窄是一种有效的治疗方法。理论上，两个球囊在扩张时提供了一个排气区域。这具有防止在长时间球囊扩张期间发生心动过缓或体循环低血压的优点。
