《Table 1 Baseline characteristics of the study population (n=102)》

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《超声引导下股静脉路径动脉导管经皮封堵术:一种治疗新策略的可行性和安全性研究（英文）》

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From June 2014 to May 2016，102 Chinese patients（38 males and 64 females）with PDA underwent attempted echocardiography-guided transvenous device closure.The median age of the 102 patients was 2.3 years（range1 to 14 years）and the median weight was 11.6 kg（range6 to 46 kg）（Table 1） .Thirty patients had symptoms of failure to thrive and/or heart failure.All patients had echocardiographic evidence of significant left-to-right shunting through the PDA with left atrial enlargement and ventricular volume overload.Patients with additional congenital cardiac anomalies that would require cardiac surgery，body weighted less than 5 kg，and PDA diameter smaller than 3 mm were excluded from the study.