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Objectives:
Squamous cell carcinoma (SCC) and fibrosarcoma, accounting for 83 to 97% of oral tumours in cats, have a low metastatic rate and can therefore often be cured by complete surgical excision. Radical mandibulectomies are however uncommonly performed because of their reported complications, especially functional, although a study of 8 radical mandibulectomies suggested acceptable outcomes. This study aims at reporting outcomes in a larger number of feline radical mandibulectomies.
Methods:
The medical records of cats having undergone radical mandibulectomy for treatment of neoplasia in 4 centres were reviewed. Data collected included surgical procedure, histopathological diagnosis, postoperative management, and outcome. Mandibulectomies were classified as total, subtotal and hemi-, if 90-100%, 75-90% and 50-75% of the mandibles were resected, respectively.
Results:
Twenty-six mandibulectomies were included: 5 total, 14 subtotal and 7 hemi-mandibulectomies. Four cats died or were euthanized as a result of surgery. Most cats (22/26; 85%) could eat on average 17 days postoperatively. At the time of writing, 5 cats were alive at a median of 356 days postoperatively [range: 216-2247]. The cause of death was related to the disease in 12 cats, unrelated in 6 and unknown in 3. The overall estimated median survival time was 365 days [77-652; 95% CI]. The median survival times were 49 days [range: 2-308], 452 days [range: 15-2247] and >912 [range: 178-912] days for total, subtotal and hemi-mandibulectomies, respectively.
Conclusions:
Radical mandibulectomies are viable options in cats. Total mandibulectomies appear to carry a worse prognosis than subtotal and hemi-mandibulectomies.
34th Annual Scientific Meeting proceedings
Stream:
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Session:
Date/Time: 30-11--0001 (00:00 - 00:00) | Location:
Date/Time: 30-11--0001 (00:00 - 00:00) | Location:
Outcomes of radical mandibulectomies in cats: a multicentric retrospective study of 26 cases
Moser J1, Jimenez-Pelaez M*2, Vincenti S*3, Aertsens A*4, Findji L*1
1AURA Veterinary, Guildford, United Kingdom, 2Auna Especialidades Veterinarias IVC Evidensia, Valencia, Spain, 3Department of clinical veterinary medicine, Vetsuisse Faculty, University of Bern, Bern, Switzerland, 4Department of Veterinary Clinical Sciences, College of Veterinary Medicine, University of Minnesota, Minnesota, USA.
Objectives:
Squamous cell carcinoma (SCC) and fibrosarcoma, accounting for 83 to 97% of oral tumours in cats, have a low metastatic rate and can therefore often be cured by complete surgical excision. Radical mandibulectomies are however uncommonly performed because of their reported complications, especially functional, although a study of 8 radical mandibulectomies suggested acceptable outcomes. This study aims at reporting outcomes in a larger number of feline radical mandibulectomies.
Methods:
The medical records of cats having undergone radical mandibulectomy for treatment of neoplasia in 4 centres were reviewed. Data collected included surgical procedure, histopathological diagnosis, postoperative management, and outcome. Mandibulectomies were classified as total, subtotal and hemi-, if 90-100%, 75-90% and 50-75% of the mandibles were resected, respectively.
Results:
Twenty-six mandibulectomies were included: 5 total, 14 subtotal and 7 hemi-mandibulectomies. Four cats died or were euthanized as a result of surgery. Most cats (22/26; 85%) could eat on average 17 days postoperatively. At the time of writing, 5 cats were alive at a median of 356 days postoperatively [range: 216-2247]. The cause of death was related to the disease in 12 cats, unrelated in 6 and unknown in 3. The overall estimated median survival time was 365 days [77-652; 95% CI]. The median survival times were 49 days [range: 2-308], 452 days [range: 15-2247] and >912 [range: 178-912] days for total, subtotal and hemi-mandibulectomies, respectively.
Conclusions:
Radical mandibulectomies are viable options in cats. Total mandibulectomies appear to carry a worse prognosis than subtotal and hemi-mandibulectomies.
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