Muraro L, White R S
Lorenzo Muraro, DVM, MRCVS, ECVS Resident, Vet 24 Veterinary Clinic, Via Sorelle Sighel 20, 38033 Cavalese (TN), Italy, Email:
Tierarztl Prax Ausg K Kleintiere Heimtiere. 2014;42(5):297-302.
Canine ovariohysterectomy (OVH) is one of the most commonly performed surgical procedures in companion animal practice. The aim of the study was to determine the frequency and types of complications related to OVH.
The clinical records of all street dogs admitted to the public dog shelters of the Veneto Region (Italy) between January 2010 and December 2011 were reviewed for dogs that had undergone OVH. Specific comparison was made between anaesthesia time, body weight of the patients and intra- and postoperative complications (occurring up to 4 weeks postoperatively). The data were statistically analyzed.
Complications were recorded in 141 of 1880 bitches corresponding to an overall complication rate of 7.5%. Mean ±standard deviation (SD) weight of the bitches was 25.7±6.7 kg and mean ± SD anaesthesia time was 42.8 ±8.6 minutes. Distinct types of complications included significant ovarian artery haemorrhage, haemorrhage from the surgical wound, wound healing complications, urinary incontinence, ovarian remnant syndrome. Twenty-one patients had intraoperative complications and 120 patients had postoperative complications. Analy- sis of the grouped data showed a significant association between body weight and the incidence of complications. There was also a significant association between anaesthesia time and the incidence of complications. The results of this study indicate that patient weight is related to the incidence of complications and the odds of a complication occurring increase by a factor of 1.03 for every one kilogram of increase in patient weight. The period of general anaesthesia also appears to be related to the incidence of complications and the odds of a complication occurring increase by approximately 2% for each additional minute in anaesthesia time.
Increasing patient weight and duration of anaesthesia time were found to be risk factors for the incidence of complications of OVH in the bitch.
犬卵巢子宫切除术（OVH）是伴侣动物临床最常施行的外科手术之一。本研究旨在确定与OVH相关的并发症的发生率及类型。
回顾2010年1月至2011年12月期间收治于意大利威尼托地区公共犬舍的所有接受OVH的流浪犬的临床记录。对麻醉时间、患犬体重以及术中和术后并发症（术后4周内出现）进行具体比较。对数据进行统计学分析。
1880只母犬中有141只出现并发症，总体并发症发生率为7.5%。母犬的平均体重±标准差（SD）为25.7±6.7千克，平均麻醉时间±SD为42.8±8.6分钟。不同类型的并发症包括卵巢动脉大出血、手术创口出血、创口愈合并发症、尿失禁、卵巢残留综合征。21例患犬出现术中并发症，120例患犬出现术后并发症。对分组数据的分析显示，体重与并发症发生率之间存在显著关联。麻醉时间与并发症发生率之间也存在显著关联。本研究结果表明，患犬体重与并发症发生率相关，患犬体重每增加1千克，发生并发症的几率增加1.03倍。全身麻醉时间似乎也与并发症发生率相关，麻醉时间每增加1分钟，发生并发症的几率约增加2%。
发现患犬体重增加和麻醉时间延长是母犬OVH并发症发生的危险因素。
