Abstract
Background
Optimal anesthetic strategy for the endovascular treatment of stroke is still under debate. Despite scarce data concerning anesthetic management for medium and distal vessel occlusions (MeVOs) some centers empirically support a general anesthesia (GA) strategy in these patients.
Methods
We conducted an international retrospective study of MeVO cases. A propensity score matching algorithm was used to mitigate potential differences across patients undergoing GA and conscious sedation (CS). Comparisons in clinical and safety outcomes were performed between the two study groups GA and CS. The favourable outcome was defined as a modified Rankin Scale (mRS) 0–2 at 90 days. Safety outcomes were 90-days mortality and symptomatic intracranial hemorrhage (sICH). Predictors of a favourable outcome and sICH were evaluated with backward logistic regression.
Results
After propensity score matching 668 patients were included in the CS and 264 patients in the GA group. In the matched cohort, either strategy CS or GA resulted in similar rates of good functional outcomes (50.1% vs. 48.4%), and successful recanalization (89.4% vs. 90.2%). The GA group had higher rates of 90-day mortality (22.6% vs. 16.5%, p < 0.041) and sICH (4.2% vs. 0.9%, p = 0.001) compared to the CS group. Backward logistic regression did not identify GA vs CS as a predictor of good functional outcome (OR for GA vs CS = 0.95 (0.67–1.35)), but GA remained a significant predictor of sICH (OR = 5.32, 95% CI 1.92–14.72).
Conclusion
Anaesthetic strategy in MeVOs does not influence favorable outcomes or final successful recanalization rates, however, GA may be associated with an increased risk of sICH and mortality.
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R.W. Regenhardt serves on a DSMB for a trial sponsored by Rapid Medical, serves as site PI for studies sponsored by Penumbra and Microvention, and receives stroke research grant funding from the National Institutes of Health, Society of Vascular and Interventional Neurology, and Heitman Stroke Foundation. A. Guenego reports consultancy for Rapid Medical and Phenox, not directly related to the present work. F. Clarençon reports conflicts of interest with Medtronic, Balt Extrusion (consultant), ClinSearch (core lab), Penumbra, Stryker (payment for reading) and Artedrone (Board) ; all not directly related to the present work. N. Henninger received support from NINDS NS131756, during the conduct of the study. D.S. Liebeskind is consultant as Imaging Core Lab to Cerenovus, Genentech, Medtronic, Stryker, Rapid Medical. T.N. Nguyen reports advisory board with Idorsia. L.L.L. Yeo reports Advisory work for AstraZeneca, Substantial support from NMRC Singapore and is a medical advisor for See-mode, Cortiro and Sunbird Bio, with equity in Ceroflo. All unrelated to the present work. C.J. Griessenauer reports a proctoring agreement with Medtronic and research funding by Penumbra. G. Marnat reports conflicts of interest with Microvention Europe, Stryker Neurovascular, Balt (consulting), Medtronic, Johnson & Johnson and Phenox (paid lectures), all not directly related to the present work. I. Sibon reports conflict of interest with Medtronic, Sanofi, Bayer, Boehringer-Ingelheim, Novartis, Novo-nordisk, BMS-Pfizer (Board and paid lectures), all not directly related to the present work. V. Yedavalli is a consultant for RAPID (Ischemaview, Menlo Park, CA). A. Vagal is a consultant for Viz AI. She is also PI of the Imaging core lab for the ENDOLOW study funded by Cerenovus (monies go to the institution). A. Gopinathan reports conflicts of interest with Microvention, Stryker Neurovascular, Medtronic, BD, and Penumbra (paid lectures, workshops, and proctoring), all not directly related to the present work. R. A. Radu, V. Costalat, M. Romoli, B. Musmar, J.E. Siegler, S. Ghozy, J. Khalife, H. Salim, H. Shaikh, N. Adeeb, H.H. Cuellar-Saenz, A.J. Thomas, R. Kadirvel, M. Abdalkader, P. Klein, J.J. Heit, J.D. Bernstock, A.B. Patel, J.D. Rabinov, C.J. Stapleton, N.M. Cancelliere, T.R. Marotta, V. Mendes Pereira, K. El Naamani, A. Amllay, S.I. Tjoumakaris, P. Jabbour, L. Meyer, J. Fiehler, T.D. Faizy, H. Guerreiro, A. Dusart, F. Bellante, G. Forestier, A. Rouchaud, C. Mounayer, A.L. Kühn, A.S. Puri, C. Dyzmann, P.T. Kan, M. Colasurdo, J. Berge, X. Barreau, S. Nedelcu, T. Ota, S. Dofuku, B.Y. Tan, J.C. Martinez-Gutierrez, S. Salazar-Marioni, S. Sheth, L. Renieri, C. Capirossi, A. Mowla, L.M. Chervak, P. Khandelwal, A. Biswas, M. Elhorany, K. Premat, I. Valente, A. Pedicelli, A.M. Alexandre, J.P. Filipe, R. Varela, M. Quintero-Consuegra, N.R. Gonzalez, M.A. YMD, J. Jesser, C. Weyland, A. ter Schiphorst, P. Harker, Y. Aziz, B. Gory, C. Paul Stracke, C. Hecker, M. Killer-Oberpfalzer, C.-Y. Hsieh, I. Tancredi, R. Fahed, B. Lubicz, M.A. Essibayi, A. Baker, D. Altschul, L. Scarcia, E. Kalsoum and A.A. Dmytriw for the MAD-MT Consortium declare that they have no competing interests.
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Radu, R.A., Costalat, V., Romoli, M. et al. Outcomes with General Anesthesia Compared to Conscious Sedation for Endovascular Treatment of Medium Vessel Occlusions: Results of an International Multicentric Study. Clin Neuroradiol (2024). https://doi.org/10.1007/s00062-024-01415-1
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DOI: https://doi.org/10.1007/s00062-024-01415-1