1临床资料患儿,女,汉族,8个月,因面色发绀、呼吸急促1个月余,颜面、下肢水肿20d入院。第1胎,第1产,孕40周,出生在阿坝州医院,出生后居住在海拔3500m以上,生活3个月余无任何症状,在内地生活2个月余后重返原居住地即出现咳嗽、呼吸急促、面色发绀,在当地医院诊断为肺炎,经治疗(具 1 clinical data children, women, Han, 8 months, due to complexion cyanosis, shortness of breath more than 1 month, face, lower extremity edema 20d admission. The first fetus, the first production, 40 weeks of pregnancy, was born in Aba Prefecture Hospital, born after living at an altitude of 3500m above the life of more than 3 months without any symptoms, living in the Mainland more than 2 months later to return to their original place of residence that appears Cough, shortness of breath, cyanosis, diagnosed as pneumonia in the local hospital, after treatment (with