CAJ | 학술논문

目的：探讨高原缺氧环境对藏族儿童心脏功能及血流动力学的影响。方法：应用HDI-3000型彩色多普勒血流成像技术检测100例藏族正常儿童心内血流速度参数及心脏功能、形态。结果：肺动脉峰值流速与主动脉峰值流速基本相等。AT、DT：二尖瓣＜三尖瓣。PGR：主动脉≥肺动脉＞二尖瓣＞三尖瓣。LVET均值250ms，LVM均值41.95g，EF62.06％。结论：拉萨地区正常藏族儿童心内血流速度参数，国内外尚未见报道，本组资料经统计学处理，提出正常藏族儿童心内血流速度参数正常值。藏族儿童普遍存在肺动脉高压状态，是高原缺氧及遗传因素所造成的。彩色多普勒成像技术可无创估测肺动脉高压程度以及心脏的功能状态，为小儿高原心脏疾患提供有价值的诊治依据。
목적：탐토고원결양배경대장족인동심장공능급혈류동역학적영향。방법：응용HDI-3000형채색다보륵혈류성상기술검측100례장족정상인동심내혈류속도삼수급심장공능、형태。결과：폐동맥봉치류속여주동맥봉치류속기본상등。AT、DT：이첨판＜삼첨판。PGR：주동맥≥폐동맥＞이첨판＞삼첨판。LVET균치250ms，LVM균치41.95g，EF62.06％。결론：랍살지구정상장족인동심내혈류속도삼수，국내외상미견보도，본조자료경통계학처리，제출정상장족인동심내혈류속도삼수정상치。장족인동보편존재폐동맥고압상태，시고원결양급유전인소소조성적。채색다보륵성상기술가무창고측폐동맥고압정도이급심장적공능상태，위소인고원심장질환제공유개치적진치의거。
To explore the anoximic effects on Tibetan children's cardiac functions and hemodynamics in oxygen deficit plateau area. Methods: HDI-3000 Color Digital Doppler System was used to examine one hundred normal Tibetan children's blood velocities and cardiac functions. Results: The pulmonary arterial peak velocity and aortic peak velocity were almost the same. AT, DT: Mv＜Tv. PGR: Av＞Pv＞Mv＞Tv. The mean LVET was 250ms, mean LV mass, 41.95g and mean EF, 62.06%. Conclusions: The blood velocity parameters of the normal Tibetan children in LHASA city were first presented in this paper. Pulmonary hypertension exists in Tibetan children,which was caused by oxygen deficit and genetic facters. CDFI can be used in the evaluation of the pulmonary hypertension degree and cardiac functions. CDFI is capable of providing the valuable evidence for diagnosis of pediatric plateau heart diseases.