残余杂音
Residual noise
以上为机器翻译结果，长、整句建议使用 人工翻译 。
结果：4例关闭成功后连续性杂音均消失，肺动脉压明显下降。 彩超无明显残余分流。
Results 4 patients were performed successfully, continuous murmur disappeared, pulmonary pressure decreased significantly, and evident residual drainage disappeared.
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