Perioperative management of scheduled interventional neuroradiology procedures: Results of a nationwide French survey

BACKGROUND AND PURPOSE: Interventional neuroradiology (INR) spans a broad range of elective indications, yet perioperative management for scheduled care remains poorly characterized. We conducted a nationwide survey to describe current practices and examine differences by center procedural volume. MATERIALS AND METHODS: A cross-sectional questionnaire (June-August 2025) was distributed to all accredited French INR centers. Descriptive analyses were performed. Prespecified univariate comparisons were conducted according to the 2024 aneurysm embolization volume (high-volume ≥150 vs. low-volume <150 procedures). The primary comparative outcome was hospital length of stay (LOS) across scheduled procedures. RESULTS: Out of the 39 existing centers, 26 responded (66.7%). Only 5/26 (19.2%) reported a dedicated inpatient INR unit, all high-volume centers. LOS differed significantly between high- and low-volume centers (p = 0.03), with a shift toward shorter stays in high-volume centers: 24-hour stays were more frequent in high-volume centers (30.5%vs. 17.6%), whereas 72-hour stays were more common in low-volume centers (37.8%vs. 19.0%). One center reported ambulatory treatment of chronic intracranial venous hypertension syndrome (CIVHS) and another center reported ambulatory embolization of unpremedicated aneurysms. Management of CIVHS appeared relatively homogeneous, whereas intracranial hypotension pathways were heterogeneous. For vascular anomalies, INR involvement was largely therapeutic with limited participation in diagnostic imaging. CONCLUSIONS: Perioperative management of scheduled INR care in France is heterogeneous, with dedicated inpatient units and shorter hospitalizations concentrated in high-volume centers. Ambulatory pathways for selected procedures, including aneurysm embolization, remain very limited at present, with only isolated reports in selected centers. These data provide a baseline to inform pathway development and quality improvement.

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Journal
Journal of Neuroradiology
Published
2026-05-31
DOI
https://doi.org/10.1016/j.neurad.2026.101573
Primary Topic
Intraoperative Neuromonitoring and Anesthetic Effects
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article
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article

Perioperative management of scheduled interventional neuroradiology procedures: Results of a nationwide French survey

Quentin Holay, Guillaume Bellanger, Federico Bolognini, Ian Léonard-Lorant et al.
Journal of Neuroradiology
Intraoperative Neuromonitoring and Anesthetic Effects
article

Perioperative management of scheduled interventional neuroradiology procedures: Results of a nationwide French survey

Quentin Holay, Guillaume Bellanger, Federico Bolognini, Ian Léonard-Lorant, Laurent Estrade, Rémy Guillevin, Jean‐Pierre Pruvo, François Zhu, M Piotin, Julien Burel, Alexis Guédon, Stéphane Velasco, Thibault Agripnidis, Arturo Consoli, Julien Ognard, Géraud Forestier, Salomé Djaid-Guenard, Finoana Laza Nomenjanahary, François Eugène, Guillaume Charbonnier, Mickaël Maldinez, Ricardo Moreno, Julien Allard, Victor Dumas, Vincent L’Allinec, Luca Scarcia, Valère Barrot, Aymeric Rouchaud, Jildaz Caroff, Gaultier Marnat, Romain Coudert, Clément Giraud
article en

Abstract

BACKGROUND AND PURPOSE: Interventional neuroradiology (INR) spans a broad range of elective indications, yet perioperative management for scheduled care remains poorly characterized. We conducted a nationwide survey to describe current practices and examine differences by center procedural volume. MATERIALS AND METHODS: A cross-sectional questionnaire (June-August 2025) was distributed to all accredited French INR centers. Descriptive analyses were performed. Prespecified univariate comparisons were conducted according to the 2024 aneurysm embolization volume (high-volume ≥150 vs. low-volume <150 procedures). The primary comparative outcome was hospital length of stay (LOS) across scheduled procedures. RESULTS: Out of the 39 existing centers, 26 responded (66.7%). Only 5/26 (19.2%) reported a dedicated inpatient INR unit, all high-volume centers. LOS differed significantly between high- and low-volume centers (p = 0.03), with a shift toward shorter stays in high-volume centers: 24-hour stays were more frequent in high-volume centers (30.5%vs. 17.6%), whereas 72-hour stays were more common in low-volume centers (37.8%vs. 19.0%). One center reported ambulatory treatment of chronic intracranial venous hypertension syndrome (CIVHS) and another center reported ambulatory embolization of unpremedicated aneurysms. Management of CIVHS appeared relatively homogeneous, whereas intracranial hypotension pathways were heterogeneous. For vascular anomalies, INR involvement was largely therapeutic with limited participation in diagnostic imaging. CONCLUSIONS: Perioperative management of scheduled INR care in France is heterogeneous, with dedicated inpatient units and shorter hospitalizations concentrated in high-volume centers. Ambulatory pathways for selected procedures, including aneurysm embolization, remain very limited at present, with only isolated reports in selected centers. These data provide a baseline to inform pathway development and quality improvement.

Journal of NeuroradiologyVol. 53(5)
Université de Tours (FR), Centre National de la Recherche Scientifique (FR), Inserm (FR), Université Fédérale de Toulouse Midi-Pyrénées (FR), Université de Lille (FR), Centre Hospitalier Universitaire Henri-Mondor (FR), Université Rennes 2 (FR), Université de Poitiers (FR), Sorbonne Université (FR), Centre Hospitalier Universitaire de Besançon (FR), Hopitaux Civils de Colmar (FR), Centre Hospitalier Universitaire de Tours (FR), University of Clermont Auvergne (FR), Normandie Université (FR), Bordeaux Population Health (FR), Imagerie Adaptative Diagnostique et Interventionnelle (FR), Hôpital Lariboisière (FR), Pitié-Salpêtrière Hospital (FR), Laboratoire des Sciences et Techniques de l’Information de la Communication et de la Connaissance (FR), Centre Hospitalier Sainte-Anne (FR), Fondation de Rothschild (FR), Thion Medical (France) (FR), Centre Hospitalier Universitaire de Clermont-Ferrand (FR), Hôpitaux Universitaires Henri-Mondor (FR), Centre Hospitalier Régional Universitaire de Brest (FR), Observatoire des Sciences de l’Univers Terre Homme Environnement Temps Astronomie (FR), Hôpital d'Instruction des Armées Sainte-Anne (FR), Maison des Sciences sociales et des Humanités de Dijon (FR), Hôpital Foch (FR), Centre Hospitalier Universitaire de Saint-Étienne (FR), Life Medical Control (France) (FR), Hôpital de la Timone (FR), Bicêtre Hospital (FR), Université d'Angers (FR), Université de Rennes (FR), Université de Rouen Normandie (FR), Université de Limoges (FR), Université de Strasbourg (FR), Université de Lorraine (FR)
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Intraoperative Neuromonitoring and Anesthetic Effects
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