摘要
目的 :通过分析以重度肺动脉高压为主要表现的成人动脉导管未闭 (PDA)的超声心动图特点 ,探讨超声心动图确诊此类PDA的有效方法。方法 :12例伴重度肺动脉高压的PDA患者 ,分别采用PhilipsSonos 5 5 0 0及GEVivid 7型超声心动图仪进行检查 ,用维生素B6注射液 5ml与碳酸氢钠注射液 5ml等比混合进行静脉超声造影 ,根据降主动脉内有无造影剂出现判定有无PDA。结果 :常规超声诊断此类PDA的难度很高和容易漏诊 ,而注射超声造影剂后所有患者降主动脉内均出现较多造影气泡 ,提示主动脉与肺动脉间存在交通。结论 :以重度肺动脉高压为主要表现的成人PDA的超声心动图特点包括 :(1)以右房室大为主要表现 ,左心大小多在正常范围 ;(2 )肺动脉显著扩张 ,肺动脉收缩压多在 10 0mmHg以上 ;(3)
Objective: To analyse the echocardiographic features of patent ductus arteriosus (PDA) with severe pulmonary hypertension(PH) and to assess the effective methods to diagnose PDA. Methods: Twelve patients who were clinical misdiagnosed were studied with Philips Sonos 5500 and GE Vivid 7 echocardiography instruments. Vitamin B 6 5 ml and sodium bicarbonate 5 ml were mixtured with 1:1 as the intravenous echo contrast. Results: It was quite difficult and time-consuming to diagnose the PDA with severe PH by routine echocardiography. After intravenous injection of echo contrast which could be found in the decending aorta in every patient suggesting the shunting between the aorta and pulmonary artery. Conclusion:The echocardiographic characteristics of adult PDA with severe PH are: (1) Enlargement of the right chambers with the normal size of the left chambers. (2) Predominantly broaden pulmonary artery with the pulmonary artery systolic pressure higher than 100mmHg. (3) It could be effectively diagnosed by the intravenous echo contrast study.
出处
《中国临床医学》
2004年第4期657-658,共2页
Chinese Journal of Clinical Medicine
