J Vet Sci.  2024 Mar;25(2):e25. 10.4142/jvs.23207.

Surgical treatment of feline intracranial meningiomas: a retrospective study of 26 cases

• Porsmoguer C
• Blondel M
• Moissonnier PHM

• KMID: 2554572
• DOI: http://doi.org/10.4142/jvs.23207

Abstract

Background
Surgical excision is the treatment of choice for feline intracranial meningioma.
Objectives
To report clinical findings, complications, and outcomes following surgery for feline intracranial meningioma.
Methods
Medical records (01/2000–01/2017) of cats that underwent surgical excision of an intracranial meningioma at our institution were reviewed. Patient data included signalment, clinical signs, surgical technique, complications, histopathologic diagnosis, survival time, and owners’ answers to a satisfaction questionnaire. Survival was assessed using the KaplanMeier method and log-rank test.
Results
Twenty-six cats were included in this study. The exact cause of death was known in 17 cases and was not related to meningioma in 9/17 cases. Overall median survival time was 881 days (95% confidence interval 518; 1248). The age of the cat did not influence survival (p = 0.94) or the occurrence of complications (p = 0.051). Complications occurred in 13/24 cats, including dramatic complications in 4/24 cats. Most complications appeared in the first 24 hours post-surgery (12/13). Males had more postoperative complications (p = 0.042), including more seizures (p = 0.016). Cats with cranioplasty had fewer complications (p = 0.021). Clinical recurrence was confirmed in 3 out of 17 cats. Recurrence-free survival time was 826 days. Most owners (12/14) were satisfied with the outcome.
Conclusions
Surgical treatment of intracranial meningioma in cats was associated with a long median survival time but also with a high rate of minor and major postoperative complications, including early postoperative seizures. Cranioplasty may reduce complications. Age at the time of surgery had no effect on outcomes.

Keyword

Meningioma; cat; intracranial; surgery; cranioplasty; PMMA; complication