Surgical management of diffuse polypoid cystitis using submucosal resection in a dog.

A 6-year-old, spayed female Labrador retriever was presented with clinical signs of stranguria, pollakiuria, and hematuria of 12 weeks' duration. A bacterial urinary tract infection, diffuse polypoid cystitis, and emphysematous cystitis were diagnosed. Antibiotic therapy combined with extensive resection of the mucosa and submucosa associated with polypoid lesions resulted in complete resolution of clinical signs and resolution of the remaining polypoid lesions. Polypoid cystitis is an uncommon but clinically relevant and reversible condition of the urinary bladder. Resection of mucosa and submucosa of the urinary bladder in dogs with polypoid cystitis may be a useful surgical treatment and can be considered as an alternative to partial cystectomy or mucosal resection.

Evaluation of a local anesthetic delivery system for the postoperative analgesic management of canine total ear canal ablation--a randomized, controlled, double-blinded study.

OBJECTIVE: To determine if a constant rate local anesthetic delivery system is more effective than continuous intravenous (IV) morphine infusion for postoperative analgesia. ANIMALS: Twenty client-owned dogs undergoing total ear canal ablation. METHODS: Dogs were randomly assigned to the lidocaine group (LID) or the morphine group (MOR). The LID group received a constant rate infusion of lidocaine locally and a continuous IV infusion of saline, while the MOR group received a constant rate infusion of saline locally and a continuous IV infusion of morphine. The primary investigator evaluated each patient and determined a hospital behavior score, anesthesia recovery score, preoperative pain score, and serial postoperative pain and sedation scores over 38 hours. Pain and sedation observations were videotaped and scored by three additional evaluators. Evaluators were blinded to treatment assignments. RESULTS: There were no significant differences in age, weight, hospital behavior scores or anesthesia recovery scores. The primary investigator's pain scores were not significantly different, but sedation scores were significantly lower for the LID group. Sedation and pain scores by the video evaluators were not significantly different between groups. Kappa agreement between observers was poor, but better agreement was noted between sedation scores than pain scores. Drug-related complications were significantly lower in the LID group (n = 0) compared with the MOR group (n = 5). Wound complications were not significantly different (LID = 4, MOR = 4). Intravenous delivery complications occurred in 12 (60%) patients. Local delivery complications occurred in five (25%) dogs. Delivery complications were not significantly different between groups. CONCLUSIONS AND CLINICAL RELEVANCE: Continuous incisional lidocaine delivery was an equipotent and viable method of providing postoperative analgesia compared with IV morphine. Lidocaine delivery resulted in a trend toward lower pain scores, significantly lower sedation scores, and no dogs requiring analgesic rescue. Wound complications secondary to local infusion were minor and self-limiting. Drug-related complications occurred only in the MOR group.