Work

Middle Meningeal Artery Embolization for the Treatment of Chronic Subdural Hematomas—a German Nationwide Multi-center Study On 718 Embolizations

Year: 2025
Type: article
Study design: Observational Study
Abstract: BACKGROUND: Embolization of the middle meningeal artery (EMMA) is a promising novel technique for the treatment of patients with chronic subdural hematomas (cSDH). METHODS: After a nationwide query in Germany, patients with cSDH, treated with EMMA were retrospectively analyzed. Patient and cSDH characteristics, procedural parameters, complications, and rates of treatment failure (TF; residual cSDH > 10 mm, cSDH progression or requirement of rescue surgery) were investigated. TF rates were compared between first-time treatments and treatments of recurrent cSDH, patients receiving embolization and surgery and those being embolized only, different types of embolic agents (particles vs. liquid agents) and between patients with and without antithrombotic medication. RESULTS: 718 EMMAs (420 unilateral, 149 bilateral) were performed in 569 patients in 30 German neurovascular centers. 57.1% were first-time treatments and 42.9% were treatments of recurrent cSDHs. The most frequently used embolic agents were particles (56.2%), followed by copolymer-based liquid embolic agents (19.6%). The rate of symptomatic procedure-related complications was 2.5%. After a mean follow-up of 6.5 months, TF was observed in 16.2% across all treatments and was more frequent after the treatment of recurrent cSDHs (19.8% vs. 13.5%, p = 0.045) and in patients taking antithrombotic drugs (17.7% vs. 11.5%; p = 0.044). TF was not significantly different regarding the type of embolic agent or additional surgery. CONCLUSIONS: In this nationwide multi-center study, EMMA was associated with favorable clinical outcomes and a low complication rate, supporting the results of recently published randomized controlled trials. TF was more frequent in recurrent cSDH treatments and in patients taking antithrombotic drugs.
Institutions: Heidelberg University, University Hospital Heidelberg, University Hospital Augsburg, Schön Klinik Vogtareuth, Goethe University Frankfurt, University Hospital Frankfurt, Klinikum Darmstadt, Helios Hospital Berlin-Buch, Klinikum Fulda, Paracelsus Medizinische Privatuniversität, Klinikum Frankfurt Höchst, Alfried Krupp Hospital, Johanna-Etienne-Krankenhaus, Sana Kliniken Duisburg, Medizinische Hochschule Hannover, Stiftung Universitätsmedizin Essen, University of Duisburg-Essen, TUM Klinikum, Technical University of Munich, St. Josef-Hospital, Ruhr University Bochum, University Hospital Magdeburg, Otto-von-Guericke-Universität Magdeburg, Charité - Universitätsmedizin Berlin, Universität Ulm, University of Freiburg, University Medical Center Freiburg, Klinikum Ludwigsburg, University Medical Center Hamburg-Eppendorf, Heinrich Heine University Düsseldorf, Johannes Gutenberg University Mainz, University Medical Center of the Johannes Gutenberg University Mainz, Jena University Hospital, Friedrich Schiller University Jena, Asklepios Klinik St. Georg, Universitätsklinikum Aachen, RWTH Aachen University, University of Cologne, University Hospital Cologne, University Hospitals of the Ruhr-University of Bochum, Universitätsklinikum Knappschaftskrankenhaus Bochum, LWL-Universitätsklinikum Bochum, University Hospital Regensburg, Justus-Liebig-Universität Gießen, Universitätsklinikum Gießen und Marburg, Sana Kliniken AG, University Hospital Carl Gustav Carus, Technische Universität Dresden
Language: English
Subfield: Neurology
Field: Medicine
Open Access status: hybrid
Estimated APC paid: $4,190
OpenAlex ID: W4413309207
FWCI: 4.948
Cites: 32
Cited by: 9
Related to: 10