A SonoPodcast! Shunt EHPSS Splenoazygos in a 2-year-old FS Pug and why. : Our Case Of the Month May 2015

Lindquist virtually analyzing a “Shunt Hunt” from SonoPath telemedicine client Calin Catarig, DVM. We call these “SonoPodcasts” to help interpret the case at hand with virtual learning. See this innovative instructional tool we use with our telemed clients here at SonoPath which are then added to our extensive SonoPodcast archive for sonopath members to learn from. See how we can remotely define this portosystemic shunt with techniques taught through virtual means on how to diagnose a shunt sonographically. Stay with this 13 minute video and be sure you give it time to download if on a slow connection because Dr. Catarig got the necessary rock star views to diagnose this spleno-azygos shunt. Nice job Calin! You are now part of the SonoPath Shunt Hunt Club; telemedicine clients that can reliably image portosystemic shunts in the field worldwide after virtual instruction by Lindquist & Sonopath specialists.

History

The patient was presented for vomiting 3-4 days prior. Was recently gagging, not urinating often despite normal drinking. The patient had a decreased appetite or was not eating at all and having innappropriate defecation in the house. Blood chemistry showed liver enzyme elevation and low BUN. Bile Acids test results were high at 464.6 umol/L. An abdominal ultrasound was recommended to rule out PSS, liver disease. possible infection- Lepto? (patient from Ontario, Canada), toxin, glomerulopathy, protein starvation, chronic non-obstructive FB, Addison, glomerulopathy, other.

Comments

This case was submitted for SonoPodcast consultation by Dr. Calin Catarig veterinarian and owner of Rosslyn Veterinary Clinic located in Edmonton, Alberta in Canada. Many thanks to Dr. Catarig for providing the patient’s history and these fantastic images!

Clinical Differential Diagnosis

Liver – porto-systemic shunt, primary portal vein hypoplasia, acute hepatopathy (viral, bacterial, leptospirosis, toxins), chronic-active hepatitis, neoplasia. Pancreas – pancreatitis, abscessation, neoplasia.

DX

Splenoazygos shunt. Severe microhepatica. Bladder sand.

UA PH

1.010

Outcome

Ameroid constrictor placement was recommended. Concurrent portal vein
hypoplasia may also be an issue in this patient given the severe microhepatica. Concern for
potential portal hypertension post surgery. This should be monitored, ideally with intraoperative
ultrasound measuring portal vein velocities after either cellophane tie-off. Post operative portal vein
velocities were recommended one day and 5 days post surgery to ensure portal hypertension does
not develop in this case. Cystotomy for sand removal could be considered, but is a minor amount and
may flush out with fluid therapy.The owner declined surgical repair due to post op risks. Currently, the patient is stable and responding to medical management: lactulose, metronidazole, Hills l/D