Objective To report outcomes and risk factors for mortality in dogs that underwent surgical management of lung lobe torsion. Study design Retrospective case series from 5 veterinary teaching hospitals (2005–2017). Animals Fifty dogs with 52 instances of lung lobe torsion. Methods Data collected from medical records included signalment, clinical findings, results of clinicopathologic testing and diagnostic imaging, surgical treatment, lung lobe affected, intraoperative and postoperative complications, histopathologic and microbiologic findings, and outcome. Follow‐up was obtained from medical records and telephone contact with primary care veterinarians. Results Fifty‐two instances of lung lobe torsion were identified in 50 dogs, with a median follow‐up of 453 days (range, 0–3075). Forty‐six (92%) dogs survived to discharge. Dogs with concurrent torsion of the right cranial and middle lung lobes were less likely to survive (2/4) than those with torsion of the left cranial lung lobe (22/22). No other risk factors for mortality prior to hospital discharge were identified. Overall median survival time after hospital discharge was 1369 days. Four dogs had >1 episode of lung lobe torsion. Conclusion The percentage of dogs surviving to discharge after surgical treatment of lung lobe torsion was higher than previously reported. The short‐ and long‐term prognosis was excellent with surgical treatment of lung lobe torsion. Clinical significance Surgery should be recommended when lung lobe torsion is suspected because of the high survival to discharge rate and excellent long‐term prognosis.
OBJECTIVE To determine the likelihood and outcome of esophageal perforation secondary to an esophageal foreign body (EFB) in dogs. DESIGN Retrospective observational study. ANIMALS 125 dogs evaluated for EFB at 2 veterinary teaching hospitals from January 2005 through December 2013. PROCEDURES Data were retrieved from the medical record of each dog regarding variables hypothesized to be associated with esophageal perforation, whether esophageal perforation was present, and survival to hospital discharge. Variables were examined for associations with various outcomes. RESULTS Bones (55/125 [44%]) and fishhooks (37/125 [30%]) were the most common types of EFBs. Fifteen (12%) dogs had an esophageal perforation (10 with a fishhook EFB and 5 with a bone EFB). No association was identified between dog body weight and esophageal perforation. Esophageal perforation was more likely in dogs with a fishhook EFB (10/37 [27%]) versus other EFBs (5/88 [6%]; OR, 6.1; 95% confidence interval, 1.9 to 9.6). Median interval from fishhook or bone ingestion to initial evaluation was significantly longer for dogs with (12 and 96 hours, respectively) versus without (1 and 24 hours, respectively) perforation. Thirteen of 15 (87%) dogs with esophageal perforation survived to hospital discharge, including all 10 dogs with perforation secondary to fishhook ingestion. Eight survivors with esophageal perforation required no surgical intervention. CONCLUSIONS AND CLINICAL RELEVANCE Esophageal perforation was uncommon in the evaluated dogs with an EFB, and no surgical intervention was required for a large proportion of them. Fishhooks and delay between EFB ingestion and initial evaluation were risk factors for perforation.
A 6 yr old female spayed Chihuahua was presented for evaluation of intermittent vulvar discharge, stranguria, and vomiting. This dog had an ovariohysterectomy as a puppy and did not experience any evidence of estrous until 4.5 yr later. The owner had been using a topical hormone replacement therapy (estradiol spray) twice daily for the duration of the dog’s clinical signs of 1 yr. On presentation, the dog had truncal alopecia, comedones, enlarged vulva with a malodorous, and purulent discharge. Bloodwork showed a leukocytosis with a neutrophilia, döhle bodies, and moderate toxic changes. An abdominal ultrasound revealed an enlarged uterine stump with a thickened wall, ovoid projection cranially, and echogenic luminal contents. An exploratory laparotomy identified an enlarged cervical stump. Histopathology revealed chronic suppurative vaginitis with endometritis, necrosis, and intraluminal coccoid bacteria. The dog recovered well from surgery. A baseline estrogen level post operatively was measured at 56.4 pg/mL (<50.0 pg/mL for a spayed bitch), at this time, the dog had been separated from the owner for 7 days. After surgery, the clinical signs disappeared, and the dog’s dermatologic changes improved. This is the first reported case of stump pyometra following exposure to the owner’s topical estradiol replacement medication.
Describe the complications associated with surgical resection of primary apocrine gland anal sac adenocarcinoma (AGASACA) tumours study design multi-institutional retrospective cross-sectional cohort study Animals Client owned dogs with spontaneous disease using the Clavien-Dindo classification system, post-operative events were assigned and described. Logistic regression analysis was used to analyse for risk factors for a significant association with complications. One hundred sixty-one dogs were included in the analysis. The post-operative sequelae, complication, and failure to cure rates specific to the anal sac site was 14%, 17% and 1%, respectively. The majority (68%) of complications were grade II or higher, therefore requiring some form of intervention. Intra-operative complications were identified in 11 cases (7%) with anorectal wall perforation being most common. An intra-operative complication was significantly associated with post-operative complications (p < 0.001; OR 7.4) while anorectal wall perforation was the only significant risk factor on regression analysis (p < 0.001; OR 19). Surgical site infection was identified in 20 of 161 (12%) of cases. Local recurrence (LR) occurred in 18% of cases at a median of 374 days (95% CI: 318-430). The only risk factor significantly associated with LR was the presence of vascular or lymphatic invasion (p = 0.008; OR 3). Post-operative complications were relatively infrequent but the risk was significantly increased when there was an intraoperative complication during resection of a primary AGASACA tumour.This study provides information for the clinician regarding risk factors for postoperative complications.
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