高海拔地区小儿扩张型心肌病的超声特点初探

Primary Research in Echosonography of Dilated Cardiomyathy in Children in High Atitude

本文通过对35例居住在高海拔地区的小儿扩张型心肌病患者的超声心动图分析发现,高海拔地区小儿扩张型心肌病以累及右室为主,超声表现为全心明显扩大,尤以右室扩大显著,所占比例高达51.34%,这与文献报道的以左室受累为主的结果不相一致,其与高原缺氧环境有关,患儿长期肺血管阻力和肺动脉压增高,右心负荷过重进而易引起心肌病变致本组患儿的特殊表现.

The echosonographic results of 35 caes with dilated cardiomyopathy in children in high alti-tude were analysed and it it showed the disease mainly affected right ventricle in high altiude. The echosono-graphic manifestation of the hearts were generally enlargment, especially in right venticle (51. 34%). This is different from literature which side left ventricle were mainly affected in the disease and it may de relative to anoxia environment. This special sign resulted from long pulmonary hypertension and heavy load in right vet-ride which result in the cardiomyopathy in children.