A best evidence topic in cardiac surgery was written according to a structured protocol. The question addressed was 'in patients undergoing mitral valve surgery, does atrial incision affect early postoperative rates of atrial arrhythmia'. Two hundred and four papers were found. Nine represented the best evidence to answer the clinical question. The authors, journal, date and country of publication, patient group studied, study type, relevant outcomes and results of these papers are tabulated. Data suggest that a transeptal incision is associated with increased rates of postoperative atrial arrhythmia compared with direct left atriotomy.

中文翻译：

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心房切口是否影响二尖瓣手术术后早期房性心律失常的发生率？

心脏手术的最佳证据主题是根据结构化协议编写的。讨论的问题是“在接受二尖瓣手术的患者中，心房切口是否会影响术后早期房性心律失常的发生率”。找到了两百零四份文件。九代表了回答临床问题的最佳证据。这些论文的作者、期刊、出版日期和国家、研究的患者群体、研究类型、相关结果和结果均以表格形式列出。数据表明，与直接左心房切开术相比，房间隔切口与术后房性心律失常发生率增加相关。