Anesthetic management of a patient with preoperative R-on-T phenomenon undergoing laparoscopic-assisted sigmoid colon resection:A case report  

作　　者：Xiao-Xi Li Yun-Feng Yao Hong-Yu Tan 

机构地区：[1]Department of Anesthesiology,Peking University Cancer Hospital&Institute,Beijing 100142,China [2]Department of UnitⅢ&Ostomy Service,Gastrointestinal Cancer Center,Peking University Cancer Hospital&Institute,Beijing 100142,China

出　　处：《World Journal of Clinical Cases》2023年第9期2098-2103,共6页世界临床病例杂志

摘　　要：BACKGROUND The R-on-T phenomenon is a malignant arrhythmia associated with potentially catastrophic consequences.It may initiate ventricular tachycardia or ventricular fibrillation,which can result in syncope or sudden cardiac death.This manifestation poses a great challenge for anesthesiologists.However,it is rarely encountered in the perioperative setting.CASE SUMMARY We herein present a case in which the R-on-T phenomenon was incidentally revealed by 24-h Holter monitoring in a patient diagnosed with sigmoid colon cancer.Careful evaluation and treatment with mexiletine were carried out preoperatively under consultation with a cardiovascular specialist,and surgery was uneventfully performed under general anesthesia after thorough preparation.CONCLUSION Physicians should be vigilant about this infrequent but potentially fatal arrhythmia.Our experience suggests that the anesthetic process can be greatly optimized with careful preparation.

关 键 词：R-on-T phenomenon Premature ventricular contraction Sigmoid colon cancer Sigmoid colon resection General anesthesia Case report 

分 类 号：R614[医药卫生—麻醉学]