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  • Author or Editor: Adam T. Ogilvie x
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Abstract

OBJECTIVE To determine the effects of silver-coated versus standard silicone urinary catheters on the incidence of catheter-associated bacteriuria (CAB) and catheter-associated urinary tract infection (CAUTI) in dogs.

DESIGN Randomized controlled clinical trial.

ANIMALS 36 dogs requiring urinary bladder catheterization for ≥ 24 hours.

PROCEDURES Dogs were randomly assigned to receive a silver-coated or non–silver-coated (control) silicone Foley catheter. Urine samples for cytologic examination and bacterial culture were collected at the time of catheter insertion and daily until catheters were removed (≥ 24 hours to 7 days later). Results were compared between groups.

RESULTS No significant differences were identified between catheter groups in the incidence of CAB or CAUTI. Although the median time to development of cytologically detected bacteriuria, culture-detected bacteriuria, and CAUTI did not differ significantly between groups, median time to CAB development (either method) was significantly longer for dogs that received a control catheter rather than a silver-coated catheter. For both types of catheters combined, older age was a significant predictor of culture-detected bacteriuria, and longer duration of catheterization was a significant predictor of culture-detected bacteriuria and overall CAB.

CONCLUSIONS AND CLINICAL RELEVANCE Silver-coated urinary catheters provided no clinical benefit over standard urinary catheters for the dogs of this study and were associated with earlier development of CAB but not CAUTI. A larger prospective study is required to definitively determine whether the use of silver-coated urinary catheters should or should not be considered to reduce the risk of CAB or CAUTI in dogs.

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in Journal of the American Veterinary Medical Association

Abstract

OBJECTIVE To compare perioperative characteristics of dogs with cystic calculi treated via open versus laparoscopic-assisted cystotomy (LAC).

DESIGN Retrospective case series.

ANIMALS 89 client-owned dogs that underwent open cystotomy (n = 39) or LAC (50).

PROCEDURES Medical records of dogs that underwent cystotomy between 2011 and 2015 were reviewed. History, signalment, surgery date, results of physical examination, results of preoperative diagnostic testing, details of surgical treatment, duration of surgery, perioperative complications, treatment costs, and duration of hospitalization were recorded.

RESULTS 5 of 50 (10%) dogs required conversion from LAC to open cystotomy (OC). There was no significant difference between the LAC (1/50) and OC (2/39) groups with regard to percentage of patients with incomplete removal of calculi. Duration of surgery was not significantly different between the LAC (median, 80 min; range, 35 to 145 min) and OC (median, 70 min; range, 45 to 120 min) groups. Postoperative duration of hospitalization was significantly shorter for dogs that underwent LAC (median, 24 hours; range, 12 to 48 hours) versus OC (median, 26 hours; range, 12 to 63 hours). Surgical and total procedural costs were significantly higher for patients undergoing LAC.

CONCLUSIONS AND CLINICAL RELEVANCE Results suggested that LAC may be an acceptable minimally invasive technique for treatment of cystic calculi in dogs. Surgery times were similar to those for dogs undergoing OC; however, surgical and total procedural costs were higher. Further investigation is suggested to determine which patients may benefit from LAC versus traditional OC.

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in Journal of the American Veterinary Medical Association