Anesthetic recovery assisted by rope at three points in horses

ABSTRACT: This study evaluated the quality of anesthesyc recovery of horses using a three-point assisted method. Sixty-eight horses (37 females and 31 males) of different breeds, age and weight submitted to general anesthesia for abdominal - ABD (n=15), arthroscopy - ART (n=17), other orthopedic - ORT (n=18) and miscellaneous - MIX (n=18) surgical procedures. Isoflurane resulted in shorter recovery time (67.4±25.7min) compared to halothane (88.0±37.8min). The mean duration (±SD) of anesthesia for ABD, ORT, ART and MIXgroups was 166.7 (±14), 54.9 (±5.9), 86.5 (±7.3) and 76.4 (±32.5) minutes (min) respectively. Quality of recovery wasn’t influenced by duration of anesthesia or by use of analgesic, sedative and/or anesthetic drugs or not (p>0.05). Mean standing time (TEst) during anesthetic recovery was 67.5 (±29.9) min in ABD, 44.4 (±27) min in ORT, 42.2 (±23.2) min in ART and 39 (±14.7) min in MIX group. Average number of attempts (Ast) to stand was 1.8 (±0.8) in ABD group, 3.1 (±4.7) in ORT, 1.8 (±1.2) in ART and 1.8 (±1.2) in MIX. Recovery time (TRec) in ABD group was 102.2 (±36.5) min, ORT 70.1 (±36.5) min, ART 72.2 (±24.8) min and MIX group 66.6 (±19.1) min. TRec differed (p<0.05) between ABDand other groups. Three-point assisted recoveryfrom anesthesia showed to be a safe procedure during horses’ recovery. This method is easy to apply and well tolerated by horses regardless of the surgical procedure.摘要：本研究采用三点辅助法（three-point assisted method）评估马的麻醉恢复质量。本次实验共纳入68匹不同品种、年龄及体重的马匹，其中母马37匹，公马31匹，所有受试动物均接受全身麻醉并实施手术，手术类型包括腹部手术（abdominal, ABD，n=15）、关节镜手术（arthroscopy, ART，n=17）、其他骨科手术（orthopedic, ORT，n=18）及杂项手术（miscellaneous, MIX，n=18）。与氟烷（halothane）相比，异氟烷（isoflurane）的麻醉恢复时间更短，分别为67.4±25.7分钟与88.0±37.8分钟。腹部手术组、其他骨科手术组、关节镜手术组及杂项手术组的麻醉平均时长（±标准差，Standard Deviation, SD）分别为166.7（±14）、54.9（±5.9）、86.5（±7.3）及76.4（±32.5）分钟。麻醉恢复质量不受麻醉时长、是否使用镇痛剂、镇静剂及/或麻醉药物的影响（p>0.05）。麻醉恢复期间的平均站立时间（Time to Stand, TEst）：腹部手术组为67.5（±29.9）分钟，其他骨科手术组为44.4（±27）分钟，关节镜手术组为42.2（±23.2）分钟，杂项手术组为39（±14.7）分钟。各组的平均站立尝试次数（Attempts to Stand, Ast）：腹部手术组为1.8（±0.8）次，其他骨科手术组为3.1（±4.7）次，关节镜手术组为1.8（±1.2）次，杂项手术组为1.8（±1.2）次。各组的麻醉恢复时间（Recovery Time, TRec）：腹部手术组为102.2（±36.5）分钟，其他骨科手术组为70.1（±36.5）分钟，关节镜手术组为72.2（±24.8）分钟，杂项手术组为66.6（±19.1）分钟。其中腹部手术组与其余各组的麻醉恢复时间存在显著统计学差异（p<0.05）。三点辅助麻醉恢复法在马的麻醉恢复过程中被证实为安全可行的操作方案，无论手术类型如何，该方法操作简便且马匹耐受性良好。