Evaluation of therapeutic effect and cytokine change during transplacental Digoxin treatment for fetal heart failure associated with fetal tachycardia, a case–control study

a Dept. of Pediatric Cardiology, West China Second University Hospital, Sichuan University, Chengdu 610041, PR China b Dept. of Obstetrics and Gynecology, West China Second University Hospital, Sichuan University, Chengdu 610041, PR China c Dept. of Ultrasound Cardiography, West China Second University Hospital, Sichuan University, Chengdu 610041, PR China d Dept. of Pediatrics, West China Second University Hospital, Sichuan University, Chengdu 610041, PR China e Key Laboratory of Ob&G and Pediatric Diseases and Birth Defects of Ministry of Education, West China Second University Hospital, Sichuan University, Chengdu 610041, PR China f Program for Yangtze River Scholars and Innovative Research Team in University, West China Medical Center, West China Second University Hospital, Sichuan University, Chengdu 610041, PR China