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Janas et al: Clinical outcomes for 20 cats with congenital extrahepatic portosystemic shunts treated with ameroid constrictor ring attenuation (2002–2020)
Veterinary Surgery 2, 2024

🔍 Key Findings:

  • Study design: Retrospective, 20 cats with congenital EHPSS treated with ameroid ring constrictor (ARC).
  • Perioperative complication rate: 25% (5/20), including seizures, blindness, ascites, and one death.
  • Short-term outcomes (18 cats):
    • Excellent: 14
    • Good: 2
    • Poor: 2
  • Long-term outcomes (18 cats):
    • Excellent: 15
    • Good: 1
    • Poor: 2
  • Persistent seizures: Noted in some cats despite normal bile acids and CBC/chemistry.
  • Preoperative blindness resolved in most cats.
  • Mean follow-up duration: Median 8 years.

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← Articles

Janas et al: Clinical outcomes for 20 cats with congenital extrahepatic portosystemic shunts treated with ameroid constrictor ring attenuation (2002–2020)
Veterinary Surgery 2, 2024

🔍 Key Findings:

  • Study design: Retrospective, 20 cats with congenital EHPSS treated with ameroid ring constrictor (ARC).
  • Perioperative complication rate: 25% (5/20), including seizures, blindness, ascites, and one death.
  • Short-term outcomes (18 cats):
    • Excellent: 14
    • Good: 2
    • Poor: 2
  • Long-term outcomes (18 cats):
    • Excellent: 15
    • Good: 1
    • Poor: 2
  • Persistent seizures: Noted in some cats despite normal bile acids and CBC/chemistry.
  • Preoperative blindness resolved in most cats.
  • Mean follow-up duration: Median 8 years.

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Multiple Choice Questions on this study

In Janas 2024 et al., on ARC outcomes in cats, what percentage of cats experienced perioperative complications?

A. 10%
B. 20%
C. 25%
D. 35%
E. 40%

Answer: 25%

Explanation: Five out of 20 cats (25%) experienced perioperative complications including seizures, blindness, and ascites.
In Janas 2024 et al., on ARC outcomes in cats, what best describes the relationship between seizures and postoperative bloodwork?

A. Seizures correlated with elevated ALT
B. Seizures resolved when bile acids normalized
C. Seizures persisted despite normal bloodwork
D. Seizures only occurred in hypoalbuminemic cats
E. Seizures were only seen in cats with ammonia >200

Answer: Seizures persisted despite normal bloodwork

Explanation: Some cats continued to have seizures despite normal bile acids and chemistry.
In Janas 2024 et al., on ARC outcomes in cats, what was the most serious postoperative complication observed?

A. Ascites
B. Seizures
C. Central blindness
D. Incisional infection
E. Cardiac arrhythmia

Answer: Seizures

Explanation: Postoperative seizures were the most serious complication, resulting in 1/20 mortality.
In Janas 2024 et al., on ARC outcomes in cats, what was the most common short-term clinical outcome?

A. Good
B. Excellent
C. Poor
D. Fatal
E. Moderate

Answer: Excellent

Explanation: 14 of 18 cats had an excellent short-term outcome after surgery.
In Janas 2024 et al., on ARC outcomes in cats, what percentage of cats with long-term follow-up had a good or excellent outcome?

A. 70%
B. 78%
C. 83%
D. 89%
E. 94%

Answer: 89%

Explanation: 16 of 18 cats with long-term follow-up had good or excellent outcomes.

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