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目的：研究肺切除手术对肺癌患者右心功能的影响作用。方法：选取68例肺癌患者作为研究对象，根据手术方式不同分为全肺切除组（34例）和肺叶切除组（34例）。比较两组患者术前、术后第3d、术后第8d 患者右心功能相关指标。结果：术前两组右心功能各项指标无明显差异，术后第3d 两组 RVEF 均明显下降，RVEDVI、mPAP、HR 则明显增加，而肺叶切除组的 PaO2术前术后无明显变化，但全肺切除组各项指标变化更为明显，与肺叶切除组差异较大，具有统计学意义（P ＜0．05）。术后第8d，全肺切除组的各项指标与术前差异仍较大，P ＜0．05，而肺叶切除组的各项指标基本恢复至术前水平，P ＞0．05。结论：全肺切除术对右心功能的影响相对较大，使右心功能下降，为减少手术创伤，提高手术的安全性，应尽量选择肺叶切除术。“,”objective:Study of lung resection surgery ef ect of right heart function in patients with lung cancer.Method:choose 68 cases of patients with lung cancer as the research ob-ject,according to dif erent operation methods are divided into pneumonectomy group (34 cases)and lobectomy group (34 cases).Compare two groups of patients with preoperative and postoper-ative 3 d,8 d related parameters of patients with right heart function after surgery.Results:no dif erence between the two groups of right heart function indicators preoperative,postoperative 3 d RVEF two group were significantly lower,RVEDVI,mPAP,HR is significantly increased,while lobectomy group of PaO2 preoperative surgery has no obvious change,but pneumonectomy group change is more apparent,the indicators and lobectomy group dif erences,statistical y significant (P <0.05).8 d,after pneumonectomy group of the indicators and preoperative dif er-ence is bigger,P 0.05).Conclusion:the influence of the pneumonectomy of right heart function is opposite bigger,make right heart function drops,to reduce the surgical trauma,to improve the safety of surgery,should choose as far as possible lung resection.