4K超高清腹腔镜与常规高清腹腔镜下经肛全直肠系膜切除术治疗低位直肠癌的对比研究

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中图分类号 R735.3+7 文献标识码A 文章编号 2096-7721（2025）11-1952-06

Comparative study of 4K ultra-high-definition versus conventional high-definition laparoscopic transanal total mesorectal excision for low rectal cancer

GAN Jianxiong， ZHAO Hong， ZHOU Huasong，LI Zhi， LI Xiangwen （Departmentof Surgery，Xi'an Hospital of Traditional Chinese Medicine，Xi’an 71OO21， China）

AbstractObjectieToomparethcalfacyof4Kutragdefiitionandconvetioali-defitiolpaoopcurgeyn transanaltotalmesorectalecision（aE）forlowrectalcancer.Methos：OpatientsithlowectalcaneradmitedtoeDeparent ofSurgeryofXi'anHospitalofTraditionalChinese MedicinefromJanuaryO22toJanuaryO25wereenoled.Theyweredividedinto the4Kgroup（n=6O）andtheconventioalgroup（n=6O）basedontetypeoflaparoscopicsystemusedinTaTE.Perioperativeindicato， pathologicaliicatorsostoperatieecoeryndomplicationatesereoparedetwntetogous.Results：Te4Koupad longeroperative timeand more intraoperative bloodlossthan theconventional group，butthediference was notsignificant （P>0.05 ）.However， the 4K group showed shorter first flatus time and postoperative length of hospital stay （ P <0.05）. The tumor diameter in the 4K group was larger thanatioealouisiitsfsaladeeati was not significant （ P >0.05）.The 4K group also had more lymph nodes dissected （ P <0.05）.The 4K group showed higher anal preservation rateand lower conversion-to-open surgery rate，but the difference was not significant （ P. >0.05），and the 4K groupshowed higher anal function recovery rate （ P <0.05）compared to the conventional group.The total postoperative complication rate was lower in the 4K group （ P <0.05）. Conclusion：4ultra-defiitioapaoessupeorouomsinTaEforlowctalcancehichanectivelyceeate postoperative recovery and reduce complication rates， with good safety and feasibility.

KeyWords4KUltra-hig-diiinLaparooe;ConvetioalHgefiitionLapaoscope;TasanalTotalMesoetalExcisio;Low Rectal Cancer

低位直肠癌作为消化道常见恶性肿瘤之一，其发病率受生活方式改变及饮食结构调整等因素影响，呈逐年上升趋势[1-2]。（剩余10667字）