TY - JOUR
T1 - A comparative analysis of microsurgical resection versus stereotactic radiosurgery for Spetzler-Martin grade III arteriovenous malformations
T2 - A multicenter propensity score matched study
AU - Tos, Salem M
AU - Hajikarimloo, Bardia
AU - Osama, Mahmoud
AU - Mantziaris, Georgios
AU - Adeeb, Nimer
AU - Kandregula, Sandeep
AU - Salim, Hamza Adel
AU - Musmar, Basel
AU - Ogilvy, Christopher
AU - Kondziolka, Douglas
AU - Dmytriw, Adam A
AU - El Naamani, Kareem
AU - Abdelsalam, Ahmed
AU - Kumbhare, Deepak
AU - Gummadi, Sanjeev
AU - Ataoglu, Cagdas
AU - Essibayi, Muhammed Amir
AU - Erginoglu, Ufuk
AU - Keles, Abdullah
AU - Muram, Sandeep
AU - Sconzo, Daniel
AU - Riina, Howard
AU - Rezai, Arwin
AU - Pöppe, Johannes
AU - Sen, Rajeev D
AU - Alwakaa, Omar
AU - Griessenauer, Christoph J
AU - Jabbour, Pascal
AU - Tjoumakaris, Stavropoula I
AU - Burkhardt, Jan-Karl
AU - Starke, Robert M
AU - Baskaya, Mustafa K
AU - Sekhar, Laligam N
AU - Levitt, Michael R
AU - Altschul, David J
AU - Haranhalli, Neil
AU - McAvoy, Malia
AU - Abushehab, Abdallah
AU - Aslan, Assala
AU - Swaid, Christian
AU - Abla, Adib
AU - Stapleton, Christopher
AU - Koch, Matthew
AU - Srinivasan, Visish M
AU - Chen, Peng R
AU - Blackburn, Spiros
AU - Cochran, Joseph
AU - Choudhri, Omar
AU - Pukenas, Bryan
AU - Orbach, Darren
AU - Smith, Edward
AU - Möhlenbruch, Markus
AU - Alaraj, Ali
AU - Aziz-Sultan, Ali
AU - Dlouhy, Kathleen
AU - El Ahmadieh, Tarek
AU - Patel, Aman B
AU - Savardekar, Amey
AU - Cuellar, Hugo H
AU - Lawton, Michael
AU - Guthikonda, Bharat
AU - Morcos, Jacques
AU - Sheehan, Jason
N1 - Rezai, Pöppe, Griessenauer: Department of Neurosurgery, Christian Doppler Klinik, Paracelsus Medical University, Salzburg, Austria
PY - 2025/2
Y1 - 2025/2
N2 - BACKGROUND: Spetzler-Martin (SM) Grade III brain arteriovenous malformations (BAVMs) represent a transitional risk zone between low- and high-grade BAVMs, characterized by diverse angioarchitecture. The primary treatment options are endovascular embolization, microsurgical resection (MS), and stereotactic radiosurgery (SRS). This study compares the efficacy and outcomes of MS and SRS.METHODS: We conducted a multicenter, retrospective study involving patients from the MISTA database with SM Grade III BAVMs treated with MS or SRS between 2010 and 2023. Propensity matching was based on age, favorable modified Rankin Score (mRS) at presentation, nidus size, rupture status, location depth, and eloquence.RESULTS: After matching, 60 patients were equally divided between MS and SRS groups. Median age (MS: 45.0 vs. SRS: 42.5 years, p = 0.3) and AVM size (MS: 3.2 vs. SRS: 2.9 cm3, p = 0.6) were similar. MS showed higher obliteration rates (93.3 %) compared to SRS (46.7 %) at the last follow-up (p < 0.001). The median time to obliteration post-SRS was 31.5 months (IQR: 15.3-60.0). SRS obliteration rates were 19 %, 29 %, and 59 % at 24, 36, and 60 months, respectively. Overall complication rates (MS: 30 % vs. SRS: 20 %, p = 0.4) and permanent complications (MS: 10 % vs. SRS: 13.3 %, p > 0.9) were similar. Hemorrhage occurred once in the MS group and none in the SRS (p > 0.9). Favorable outcomes (mRS 0-2) were higher with SRS than MS (93.3 % vs 80.0 %, p = 0.3), with one AVM-related mortality in the MS group.CONCLUSION: MS and SRS are viable treatments for SM Grade III BAVMs. Treatment choice should be individualized by a multidisciplinary team, considering patient goals.
AB - BACKGROUND: Spetzler-Martin (SM) Grade III brain arteriovenous malformations (BAVMs) represent a transitional risk zone between low- and high-grade BAVMs, characterized by diverse angioarchitecture. The primary treatment options are endovascular embolization, microsurgical resection (MS), and stereotactic radiosurgery (SRS). This study compares the efficacy and outcomes of MS and SRS.METHODS: We conducted a multicenter, retrospective study involving patients from the MISTA database with SM Grade III BAVMs treated with MS or SRS between 2010 and 2023. Propensity matching was based on age, favorable modified Rankin Score (mRS) at presentation, nidus size, rupture status, location depth, and eloquence.RESULTS: After matching, 60 patients were equally divided between MS and SRS groups. Median age (MS: 45.0 vs. SRS: 42.5 years, p = 0.3) and AVM size (MS: 3.2 vs. SRS: 2.9 cm3, p = 0.6) were similar. MS showed higher obliteration rates (93.3 %) compared to SRS (46.7 %) at the last follow-up (p < 0.001). The median time to obliteration post-SRS was 31.5 months (IQR: 15.3-60.0). SRS obliteration rates were 19 %, 29 %, and 59 % at 24, 36, and 60 months, respectively. Overall complication rates (MS: 30 % vs. SRS: 20 %, p = 0.4) and permanent complications (MS: 10 % vs. SRS: 13.3 %, p > 0.9) were similar. Hemorrhage occurred once in the MS group and none in the SRS (p > 0.9). Favorable outcomes (mRS 0-2) were higher with SRS than MS (93.3 % vs 80.0 %, p = 0.3), with one AVM-related mortality in the MS group.CONCLUSION: MS and SRS are viable treatments for SM Grade III BAVMs. Treatment choice should be individualized by a multidisciplinary team, considering patient goals.
U2 - 10.1016/j.clineuro.2024.108669
DO - 10.1016/j.clineuro.2024.108669
M3 - Original Article
C2 - 39642799
SN - 0303-8467
VL - 249
SP - 108669
JO - Clinical Neurology and Neurosurgery
JF - Clinical Neurology and Neurosurgery
M1 - 108669
ER -