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Veytsman et al: Retrospective study of 20 cats surgically treated for insulinoma
Veterinary Surgery 1, 2023

🔍 Key Findings

  • Surgical excision of insulinomas resulted in euglycemia or hyperglycemia in 90% of cats immediately post-op.
  • 18/20 cats (90%) survived to hospital discharge, with a median survival time of 863 days.
  • Younger age, metastasis at surgery, tumor invasion, and lower glucose levels were negative prognostic factors.
  • Two cats had stage III disease with metastasis; one lived 413 days post-op, suggesting some benefit to surgery even in advanced disease.
  • Postoperative hypoglycemia and seizure activity were associated with poorer outcomes; one cat euthanized due to seizures despite euglycemia.
  • Median disease-free interval (DFI) was 1052 days; for cats with metastasis, DFI dropped to 93 days.
  • Partial pancreatectomy was performed in 11 cats, nodulectomy in 10, and enucleation in 1; method of resection not linked to outcome.
  • Postoperative complications occurred in 25% of cats; most were manageable with supportive care.

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← Articles

Veytsman et al: Retrospective study of 20 cats surgically treated for insulinoma
Veterinary Surgery 1, 2023

🔍 Key Findings

  • Surgical excision of insulinomas resulted in euglycemia or hyperglycemia in 90% of cats immediately post-op.
  • 18/20 cats (90%) survived to hospital discharge, with a median survival time of 863 days.
  • Younger age, metastasis at surgery, tumor invasion, and lower glucose levels were negative prognostic factors.
  • Two cats had stage III disease with metastasis; one lived 413 days post-op, suggesting some benefit to surgery even in advanced disease.
  • Postoperative hypoglycemia and seizure activity were associated with poorer outcomes; one cat euthanized due to seizures despite euglycemia.
  • Median disease-free interval (DFI) was 1052 days; for cats with metastasis, DFI dropped to 93 days.
  • Partial pancreatectomy was performed in 11 cats, nodulectomy in 10, and enucleation in 1; method of resection not linked to outcome.
  • Postoperative complications occurred in 25% of cats; most were manageable with supportive care.

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Multiple Choice Questions on this study

In Veytsman 2023 et al., on feline insulinoma outcomes, what was the reported median overall survival time (OST)?

A. 412 days
B. 863 days
C. 1052 days
D. 248 days
E. 1316 days

Answer: 863 days

Explanation: The median OST was 863 days following surgery.
In Veytsman 2023 et al., on feline insulinoma outcomes, which of the following was NOT a negative prognostic factor?

A. Younger age
B. Low serum glucose at presentation
C. Tumor invasion
D. Method of surgical resection
E. Metastasis at surgery

Answer: Method of surgical resection

Explanation: Method of surgical excision was not associated with outcome.
In Veytsman 2023 et al., on feline insulinoma outcomes, what percentage of cats survived to hospital discharge?

A. 60%
B. 70%
C. 80%
D. 90%
E. 100%

Answer: 90%

Explanation: 18 of 20 cats (90%) survived to discharge after surgery.
In Veytsman 2023 et al., on feline insulinoma outcomes, what percentage of cats were euglycemic or hyperglycemic immediately after surgery?

A. 50%
B. 70%
C. 90%
D. 100%
E. 60%

Answer: 90%

Explanation: 90% of cats achieved immediate euglycemia or hyperglycemia postoperatively.
In Veytsman 2023 et al., on feline insulinoma outcomes, what was the median disease-free interval (DFI) in cats without metastasis?

A. 93 days
B. 214 days
C. 413 days
D. 1052 days
E. 710 days

Answer: 1052 days

Explanation: Median DFI for all cats was 1052 days; cats with metastasis had shorter DFI.

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