Objective—To determine long-term outcome of dogs
with gallbladder mucocele.
Animals—30 dogs with gallbladder mucocele, including
23 that underwent cholecystectomy.
Procedure—Medical records were reviewed for signalment,
history, and clinical, ultrasonographic, and
surgical findings. Follow-up information was obtained
for all dogs that survived the perioperative hospitalization
Results—23 dogs had signs of systemic illness; 7 had
no clinical signs. Median values for serum activities of
alanine aminotransferase and alkaline phosphatase,
serum total bilirubin concentration, and total WBC
count were significantly higher among dogs with gallbladder
rupture than among dogs without rupture.
Sensitivity of sonography for detection of rupture was
85.7%. Overall perioperative mortality rate for dogs
that underwent cholecystectomy was 21.7%; mortality
rate was not significantly greater for dogs with rupture.
Aerobic bacteria were isolated from the bile or gallbladder
wall in 8.7% of dogs. All 18 dogs discharged
from the hospital had complete resolution of clinical
signs. In dogs that underwent in-hospital reexamination,
serum liver enzyme activities were significantly
decreased, compared with preoperative activities.
Persistent increases in serum activities of 1 or more
liver enzymes were detected in 9 of 12 dogs; 6 of 12
dogs had persistent abnormalities in hepatic
echogenicity. Mean follow-up period was 13.9 months.
Conclusions and Clinical Relevance—Results suggest
that cholecystectomy is an effective treatment
for gallbladder mucocele. Although perioperative mortality
rate is high, prognosis after discharge from the
hospital is excellent. Rupture of the gallbladder warrants
emergency surgical intervention but does not
preclude a positive outcome. (J Am Vet Med Assoc