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Conclusion When polyhead operative suture was used, installing pads rationally could prevent the cardiac tissue from tearing, and make the polyhead operative suture show more advantages.
结论：在使用多针头手术缝线时合理置放垫片，可以防止撕裂针孔处心脏组织，使多针头手术缝线的优点充分得到发挥。
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