Safety and efficacy of preoperative embolization in the treatment of brain arteriovenous malformations with perinidal aneurysms and single draining vein: a multicenter study with propensity score-weighting

  • Basel Musmar
  • , Nimer Adeeb
  • , Hammam Abdalrazeq
  • , Hamza Adel Salim
  • , Joanna Roy
  • , Stavropoula I. Tjoumakaris
  • , Sandeep Kandregula
  • , Christopher S. Ogilvy
  • , Douglas Kondziolka
  • , Jason P. Sheehan
  • , Adam A. Dmytriw
  • , Assala Aslan
  • , Pious Patel
  • , Matthews Lan
  • , Michael P. Baldassari
  • , Sravanthi Koduri
  • , Elias Atallah
  • , Hussein Zeineddine
  • , Mary Katharine Pontarelli
  • , Hussam Abou-Al-Shaar
  • Kareem El Naamani, Ahmed Abdelsalam, Natasha Ironside, Deepak Kumbhare, Sanjeev Gummadi, Mustafa Baskaya, Cagdas Ataoglu, Finn Mccarthy, Anthony Sanchez-Forteza, Muhammed Amir Essibayi, Abdullah Keles, Sandeep Muram, Daniel Sconzo, Howard Riina, Arwin Rezai, Omar Alwakaa, Salem M. Tos, Georgios Mantziaris, Min S. Park, Sahin Hanalioglu, Ufuk Erginoglu, Johannes Pöppe, Rajeev D. Sen, Christoph J. Griessenauer, Maria Isabel Ocampo-Navia, Diego A. Devia, Wilfran Perez-Mendez, Juan C. Puentes, Rahim Abo Kasem, Alejandro M. Spiotta, Ajit S. Puri, Jasmeet Singh, Anna Luisa Kuhn, Jan Karl Burkhardt, Robert M. Starke, Laligam N. Sekhar, Michael Levitt, David Altschul, Neil Haranhalli, Malia Mcavoy, Marah Eltiti, Abdallah Abushehab, Paul Foreman, Hakeem J. Shakir, Osama O. Zaidat, Mohammad Almajali, Marcella Ruppert-Gomez, Alfred Pokmeng See, Adib A. Abla, Christopher J. Stapleton, Aashay Patel, Andrew Nguyen, Matthew J. Koch, Visish M. Srinivasan, Peng Roc Chen, Spiros Blackburn, Rabab Alshahrani, M. Reid Gooch, Robert H. Rosenwasser, Ketan R. Bulsara, Peter Kan, Louis J. Kim, Omar Choudhri, Bryan Pukenas, Davide Simonato, Yan Lin Li, Ali Alaraj, Maurizio Fuschi, Aman B. Patel, Amey Savardekar, Christina Notarianni, Hugo H. Cuellar, Michael T. Lawton, Bharat Guthikonda, Jacques Morcos, Pascal Jabbour

Research output: Contribution to journalArticlepeer-review

Abstract

Background and objectives: Arteriovenous malformations (AVMs) with perinidal aneurysms and single draining vein are associated with an elevated risk of rupture and increased procedural complexity. The role of preoperative embolization in this high-risk anatomical subset remains unclear. This study aimed to evaluate the safety and efficacy of microsurgery with preoperative embolization, compared with microsurgery alone in patients with such AVMs. Methods: We conducted a multicenter retrospective analysis of an AVM registry from the MISTA (Multicenter International Study for Treatment of Brain AVMs) consortium and included AVMs with perinidal aneurysms and a single draining vein. Baseline characteristics, angiographic outcomes, functional outcomes, and complication rates were compared. Propensity score weighting (PSW) using the covariate balancing method was applied to adjust for baseline differences. Results: Out of a total of 1919 patients, 65 met the inclusion criteria; 45 patients underwent preoperative embolization followed by microsurgery, and 20 underwent microsurgery alone. After adjustment, complete obliteration rates were similar between groups (OR 0.87, 95% CI 0.04 to 16.33, P=0.92), as were rates of functional independence at discharge and follow-up. Overall complication, symptomatic complication, and mortality rates did not differ significantly between groups. However, permanent complications were significantly lower in patients with preoperative embolization (OR 0.06, 95% CI 0.004 to 0.84, P=0.03). Discussion: In patients with AVMs featuring perinidal aneurysms and single draining vein, preoperative embolization followed by microsurgery was associated with fewer permanent complications and no increase in adverse outcomes compared with microsurgery alone. However, given the small number of events, this finding should be interpreted cautiously.

Original languageEnglish (US)
JournalJournal of neurointerventional surgery
DOIs
StateAccepted/In press - 2025

Keywords

  • Arteriovenous Malformation

ASJC Scopus subject areas

  • Surgery
  • Clinical Neurology

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