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Middle Meningeal Artery Embolization (MMAE) Outcomes for Chronic Subdural Hematoma (cSDH)

Outcomes of Middle Meningeal Artery for Treatment of Chronic Subdural Hematoma; Middle Meningeal Artery Embolization for Chronic Subdural Hematoma (MESH)

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT06181994
Acronym
MESH
Enrollment
5000
Registered
2023-12-26
Start date
2023-12-05
Completion date
2026-08-31
Last updated
2026-01-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Chronic Subdural Hematoma

Keywords

Middle meningeal artery embolization, Endovascular Embolization

Brief summary

This multi-center retrospective cohort study aims to investigate the real-world outcomes of chronic subdural hematoma treated with MMAE, including clinical effectiveness, recurrence rates, and safety profile.

Detailed description

Chronic subdural hematoma (cSDH) is a prevalent neurosurgical condition marked by the accumulation of blood in the subarachnoid space. Primarily affecting elderly individuals, cSDH is associated with significant morbidity and mortality rates. Current standard treatments for cSDH involve surgical evacuation through burr hole craniotomy or twist-drill craniotomy; however, recent research has illuminated the potential significance of the middle meningeal artery (MMA) in cSDH pathogenesis, suggesting an innovative minimally invasive treatment avenue. The investigator team is attempting to determine whether MMA embolization has demonstrated a favorable safety profile with a low incidence of treatment-related complications.

Interventions

None listed

Sponsors

Geisinger Clinic
CollaboratorOTHER
Heidelberg University
CollaboratorOTHER
Henri Mondor University Hospital
CollaboratorOTHER
Ospedale Policlinico San Martino
CollaboratorOTHER
Ospedale San Raffaele
CollaboratorOTHER
Lehigh Valley Hospital
CollaboratorOTHER
Mayo Clinic
CollaboratorOTHER
Medical University of South Carolina
CollaboratorOTHER
New York University
CollaboratorOTHER
Oregon Health and Science University
CollaboratorOTHER
Sisters of Mercy University Hospital
CollaboratorOTHER
Unity Health Toronto
CollaboratorOTHER
Sutter Health
CollaboratorOTHER
University of Iowa
CollaboratorOTHER
Thomas Jefferson University
CollaboratorOTHER
University Health Network, Toronto
CollaboratorOTHER
University Hospital, Bordeaux
CollaboratorOTHER
University of Alabama at Birmingham
CollaboratorOTHER
University of South Florida
CollaboratorOTHER
University of Washington
CollaboratorOTHER
Cornell University
CollaboratorOTHER
Westchester Medical Center
CollaboratorOTHER
Montefiore Medical Center
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
RETROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Consecutive adult patients (18 yrs. of age or older) * Endovascular embolization of middle meningeal artery using any embolization material: PVA particles; Onyx, nBCA glue; dimethyl sulfoxide, microcoils, PVA with microcoils

Exclusion criteria

* Endovascular embolization of middle meningeal artery using any other embolization material

Design outcomes

Primary

MeasureTime frameDescription
Reaccumulation of HematomaWithin 1 month post MMAEThe percentage of patients who were determined to have a reaccumulation of their hematoma will be tabulated and reported
Rescue surgical evacuationBetween 1-3 months post MMAEThe percentage of patients who were determined to require rescue surgical evacuation of their hematoma will be tabulated and reported

Secondary

MeasureTime frameDescription
Complications following MMAEFollowing the procedure, up to 4 weeksComplications following MMAE will be identified and tabulated as either permanent or transient in nature
Timing of ComplicationsFollowing the procedure, up to 4 weeksComplications will be categorized and tabulated as having occurred perioperatively or postoperatively
Relatedness of ComplicationsFollowing the procedure, up to 4 weeksComplications will be assessed as to whether or not they were related to the surgical procedure
Reaccumulation of HematomaBetween 1-3 months post MMAEThe percentage of patients who were determined to have a reaccumulation of their hematoma will be tabulated and reported. Reaccumulation of the hematoma will be determined by measuring the hematoma thickness at a given time point and comparing it to the thickness measured at the previous time point.
Clinical outcome at dischargeUpon study discharge, up to 24 monthsClinical outcome at discharge will be assessed using the modified Rankin Scale (mRS) for neurologic disability. The mRS being used is a 7-point scale with possible scores ranging from 0-6. mRS measures the degree of disability or dependence in the daily activities of people who have suffered neurological disability. Scoring ranges from 0 (no residual symptoms) to 5 (severe neurologic disability). A patient who has expired (during or after discharge from hospital) is assigned a score of 6. Scores will be averaged and reported. Higher mRS scores are associated with progressively less favorable outcomes.
Disposition After DischargeUpon study discharge, up to 24 monthsDisposition upon discharge will be categorized as either discharged to home; discharged to home with health service, discharged to rehabilitation facility, or death
Rescue surgical evacuationBetween 3-12 months post MMAEThe percentage of patients who were determined to require rescue surgical evacuation of their hematoma will be tabulated and reported
Duration of Hospital StayUpon study discharge, up to 24 monthsThe median duration of hospital stay will be tabulated and reported
Clinical Outcome at Follow-up Clinical outcome at follow-upUpon study discharge, 1-4 weeksClinical outcome at follow-up will be assessed using a variant of the modified Rankin Scale (mRS) for neurologic disability. The classic mRS is a 6-point disability scale with possible scores ranging from 0-5. mRS measures the degree of disability or dependence in the daily activities of people who have suffered a stroke or other causes of neurological disability. Higher scores are generally associated with less favorable outcomes. For this study patients with an mRS score of 0-2 will be determined to have had a favorable outcome to the procedure and patients with an mRS score of 3-5 will have been determined to have had an unfavorable outcome. Scoring will also include a 6 to identify patients who have expired.

Countries

Australia, Canada, United States

Contacts

Primary ContactMuhammed Amir Essibayi, MD
muhammedamir.essibayi@einsteinmed.edu347-908-1889

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026