结论：食管左心房压迹定房间隔穿刺点，方法准确安全，简单易行。
Conclusion: The new method of atrial septal puncture located by left atrial impression on esophagus is accurate, safe and simple to perform.
结论：食管左心房压迹定房间隔穿刺点，方法准确安全，简单易行。
Conclusion: The new method of atrial septal puncture located by left atrial impression on esophagus is accurate, safe and simple to perform.
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