Comparison of Survival After Treatment of Presumed Intracranial Meningioma by Radiotherapy or Surgery in 285 Dogs

ABSTRACT Background The comparative effectiveness of radiotherapy and surgery for treating intracranial meningioma is unknown. Objectives To compare survival after treatment of suspected intracranial meningioma by either surgery or radiotherapy. Animals Two hundred eighty‐five companion dogs with su...

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Main Authors: Rachel Geiger, Joe Mankin, Holger A. Volk, Steven deDecker, Nate vanAsselt, Karanbir Randhawa, Tara Ehling, Charles A. Maitz, Ada Naramor, Joan R. Coates, Catherine Stalin, Lauren Johnstone, Joanna Morris, Ioannis N. Plessas, Alexander Forward, Laurent Garosi, Elena Scarpante, Giunio Cherubini, Tom Harcourt‐Brown, Sheila Carrera‐Justiz, Jishnu Rao Gutti, Marilia Takada, Joel White, Koichi Nagata, Marc Kent, Renee Barber, Daisuke Ito, Tomohiro Nakayama, Ayaka Oshima, Naoki Sekigucki, Lauren Smith‐Oskrochi, Nick Jeffery
Format: Article
Language:English
Published: Wiley 2025-03-01
Series:Journal of Veterinary Internal Medicine
Subjects:
Online Access:https://doi.org/10.1111/jvim.70011
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author Rachel Geiger
Joe Mankin
Holger A. Volk
Steven deDecker
Nate vanAsselt
Karanbir Randhawa
Tara Ehling
Charles A. Maitz
Ada Naramor
Joan R. Coates
Catherine Stalin
Lauren Johnstone
Joanna Morris
Ioannis N. Plessas
Alexander Forward
Laurent Garosi
Elena Scarpante
Giunio Cherubini
Tom Harcourt‐Brown
Sheila Carrera‐Justiz
Jishnu Rao Gutti
Marilia Takada
Joel White
Koichi Nagata
Marc Kent
Renee Barber
Daisuke Ito
Tomohiro Nakayama
Ayaka Oshima
Naoki Sekigucki
Lauren Smith‐Oskrochi
Nick Jeffery
author_facet Rachel Geiger
Joe Mankin
Holger A. Volk
Steven deDecker
Nate vanAsselt
Karanbir Randhawa
Tara Ehling
Charles A. Maitz
Ada Naramor
Joan R. Coates
Catherine Stalin
Lauren Johnstone
Joanna Morris
Ioannis N. Plessas
Alexander Forward
Laurent Garosi
Elena Scarpante
Giunio Cherubini
Tom Harcourt‐Brown
Sheila Carrera‐Justiz
Jishnu Rao Gutti
Marilia Takada
Joel White
Koichi Nagata
Marc Kent
Renee Barber
Daisuke Ito
Tomohiro Nakayama
Ayaka Oshima
Naoki Sekigucki
Lauren Smith‐Oskrochi
Nick Jeffery
author_sort Rachel Geiger
collection DOAJ
description ABSTRACT Background The comparative effectiveness of radiotherapy and surgery for treating intracranial meningioma is unknown. Objectives To compare survival after treatment of suspected intracranial meningioma by either surgery or radiotherapy. Animals Two hundred eighty‐five companion dogs with suspected intracranial meningiomas presenting to 11 specialty clinics in three countries. Methods Parallel cohort comparison study on retrospective data. Dogs diagnosed with intracranial meningioma by board‐certified veterinary neurologists or radiologists and treated by radiotherapy or surgery were identified through medical record searches and presenting and survival data extracted. Lesion site was classified as rostro‐ or caudotentorial and size was measured on contrast magnetic resonance images. Outcome was all‐cause death. Analysis of survival by Cox proportional hazards, including selection for optimal multivariable model using lasso, counterfactual modeling including variables associated with treatment allocation and survival. Results One hundred sixty‐eight dogs received radiotherapy and 117 received surgery. All analyses indicated reduced survival associated with surgery compared to radiotherapy. There was a median survival after surgery of 297 (IQR: 99–768) days compared with 696 (IQR: 368–999) for dogs treated by radiation, associated with a univariable hazard ratio of 1.802 (95% CI: 1.357–2.394). Counterfactual modeling estimated a mean survival of 480 (95% CI: 395–564) days after surgery and 673 (95% CI: 565–782) days after radiotherapy, representing a decrease in survival of 29%. Location and size of the lesion were not associated with survival duration. Conclusions and Clinical Importance Dogs with suspected intracranial meningioma have substantially superior survival after radiotherapy compared to surgery.
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spelling doaj-art-d50c8a8bd2b14e7facf27454948910862025-08-20T02:58:00ZengWileyJournal of Veterinary Internal Medicine0891-66401939-16762025-03-01392n/an/a10.1111/jvim.70011Comparison of Survival After Treatment of Presumed Intracranial Meningioma by Radiotherapy or Surgery in 285 DogsRachel Geiger0Joe Mankin1Holger A. Volk2Steven deDecker3Nate vanAsselt4Karanbir Randhawa5Tara Ehling6Charles A. Maitz7Ada Naramor8Joan R. Coates9Catherine Stalin10Lauren Johnstone11Joanna Morris12Ioannis N. Plessas13Alexander Forward14Laurent Garosi15Elena Scarpante16Giunio Cherubini17Tom Harcourt‐Brown18Sheila Carrera‐Justiz19Jishnu Rao Gutti20Marilia Takada21Joel White22Koichi Nagata23Marc Kent24Renee Barber25Daisuke Ito26Tomohiro Nakayama27Ayaka Oshima28Naoki Sekigucki29Lauren Smith‐Oskrochi30Nick Jeffery31Department of Small Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences Texas A&M University College Station Texas USADepartment of Small Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences Texas A&M University College Station Texas USADepartment of Clinical Science and Services Royal Veterinary College Hatfield UKDepartment of Clinical Science and Services Royal Veterinary College Hatfield UKDepartment of Surgical Sciences University of Wisconsin Veterinary Care Madison Wisconsin USADepartment of Surgical Sciences University of Wisconsin Veterinary Care Madison Wisconsin USADepartment of Veterinary Medicine and Surgery, College of Veterinary Medicine University of Missouri Columbia Missouri USADepartment of Veterinary Medicine and Surgery, College of Veterinary Medicine University of Missouri Columbia Missouri USADepartment of Veterinary Medicine and Surgery, College of Veterinary Medicine University of Missouri Columbia Missouri USADepartment of Veterinary Medicine and Surgery, College of Veterinary Medicine University of Missouri Columbia Missouri USASmall Animal Clinical Division, School of Biodiversity, One Health and Veterinary Medicine University of Glasgow Glasgow UKSmall Animal Clinical Division, School of Biodiversity, One Health and Veterinary Medicine University of Glasgow Glasgow UKSmall Animal Clinical Division, School of Biodiversity, One Health and Veterinary Medicine University of Glasgow Glasgow UKDavies Veterinary Specialists Hitchin UKDavies Veterinary Specialists Hitchin UKDavies Veterinary Specialists Hitchin UKDWR Veterinary Specialists Cambridgeshire UKDWR Veterinary Specialists Cambridgeshire UKLangford Vets Small Animal Hospital Langford UKCollege of Veterinary Medicine, Department of Small Animal Clinical Sciences University of Florida Gainesville Florida USACollege of Veterinary Medicine, Department of Small Animal Clinical Sciences University of Florida Gainesville Florida USACollege of Veterinary Medicine, Department of Small Animal Clinical Sciences University of Florida Gainesville Florida USADepartment of Small Animal Medicine & Surgery University of Georgia College of Veterinary Medicine Athens Georgia USADepartment of Small Animal Medicine & Surgery University of Georgia College of Veterinary Medicine Athens Georgia USADepartment of Small Animal Medicine & Surgery University of Georgia College of Veterinary Medicine Athens Georgia USADepartment of Small Animal Medicine & Surgery University of Georgia College of Veterinary Medicine Athens Georgia USADepartment of Veterinary Medicine, College of Bioresource Sciences Nihon University Fujisawa JapanDepartment of Veterinary Medicine, College of Bioresource Sciences Nihon University Fujisawa JapanDepartment of Veterinary Medicine, College of Bioresource Sciences Nihon University Fujisawa JapanDepartment of Veterinary Medicine, College of Bioresource Sciences Nihon University Fujisawa JapanDepartment of Small Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences Texas A&M University College Station Texas USADepartment of Small Animal Clinical Sciences, College of Veterinary Medicine and Biomedical Sciences Texas A&M University College Station Texas USAABSTRACT Background The comparative effectiveness of radiotherapy and surgery for treating intracranial meningioma is unknown. Objectives To compare survival after treatment of suspected intracranial meningioma by either surgery or radiotherapy. Animals Two hundred eighty‐five companion dogs with suspected intracranial meningiomas presenting to 11 specialty clinics in three countries. Methods Parallel cohort comparison study on retrospective data. Dogs diagnosed with intracranial meningioma by board‐certified veterinary neurologists or radiologists and treated by radiotherapy or surgery were identified through medical record searches and presenting and survival data extracted. Lesion site was classified as rostro‐ or caudotentorial and size was measured on contrast magnetic resonance images. Outcome was all‐cause death. Analysis of survival by Cox proportional hazards, including selection for optimal multivariable model using lasso, counterfactual modeling including variables associated with treatment allocation and survival. Results One hundred sixty‐eight dogs received radiotherapy and 117 received surgery. All analyses indicated reduced survival associated with surgery compared to radiotherapy. There was a median survival after surgery of 297 (IQR: 99–768) days compared with 696 (IQR: 368–999) for dogs treated by radiation, associated with a univariable hazard ratio of 1.802 (95% CI: 1.357–2.394). Counterfactual modeling estimated a mean survival of 480 (95% CI: 395–564) days after surgery and 673 (95% CI: 565–782) days after radiotherapy, representing a decrease in survival of 29%. Location and size of the lesion were not associated with survival duration. Conclusions and Clinical Importance Dogs with suspected intracranial meningioma have substantially superior survival after radiotherapy compared to surgery.https://doi.org/10.1111/jvim.70011brain tumorcaninemeningiomaneurologyoncology‐treatment
spellingShingle Rachel Geiger
Joe Mankin
Holger A. Volk
Steven deDecker
Nate vanAsselt
Karanbir Randhawa
Tara Ehling
Charles A. Maitz
Ada Naramor
Joan R. Coates
Catherine Stalin
Lauren Johnstone
Joanna Morris
Ioannis N. Plessas
Alexander Forward
Laurent Garosi
Elena Scarpante
Giunio Cherubini
Tom Harcourt‐Brown
Sheila Carrera‐Justiz
Jishnu Rao Gutti
Marilia Takada
Joel White
Koichi Nagata
Marc Kent
Renee Barber
Daisuke Ito
Tomohiro Nakayama
Ayaka Oshima
Naoki Sekigucki
Lauren Smith‐Oskrochi
Nick Jeffery
Comparison of Survival After Treatment of Presumed Intracranial Meningioma by Radiotherapy or Surgery in 285 Dogs
Journal of Veterinary Internal Medicine
brain tumor
canine
meningioma
neurology
oncology‐treatment
title Comparison of Survival After Treatment of Presumed Intracranial Meningioma by Radiotherapy or Surgery in 285 Dogs
title_full Comparison of Survival After Treatment of Presumed Intracranial Meningioma by Radiotherapy or Surgery in 285 Dogs
title_fullStr Comparison of Survival After Treatment of Presumed Intracranial Meningioma by Radiotherapy or Surgery in 285 Dogs
title_full_unstemmed Comparison of Survival After Treatment of Presumed Intracranial Meningioma by Radiotherapy or Surgery in 285 Dogs
title_short Comparison of Survival After Treatment of Presumed Intracranial Meningioma by Radiotherapy or Surgery in 285 Dogs
title_sort comparison of survival after treatment of presumed intracranial meningioma by radiotherapy or surgery in 285 dogs
topic brain tumor
canine
meningioma
neurology
oncology‐treatment
url https://doi.org/10.1111/jvim.70011
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