Abstract TP38: Efficacy of Middle Meningeal Artery Embolization for Chronic Subdural Hematoma

Stroke ◽  
2020 ◽  
Vol 51 (Suppl_1) ◽  
Author(s):  
Ashish Kulhari ◽  
Amrinder Singh ◽  
Siddhart Mehta ◽  
Farah Fourcand ◽  
Jawad.F. Kirmani ◽  
...  

Background: Symptomatic chronic subdural hematoma (SDH) is treated with surgical evacuation. SDH has a high incidence of recurrence despite evacuation, reported between 2% and 37%. Multiple case reports and case series demonstrate embolization of the Middle Meningeal artery (MMA) for the treatment of chronic SDH to be an adjunct treatment and a possible alternative to surgical evacuation. Method: Retrospective analysis of patients with chronic SDH who underwent MMA embolization at our community based, Comprehensive Stroke Center between April and August 2019 was done. MMA embolization was performed using 100-300 or 300-500 μm Embospheres. Results: 18 patients presented with chronic SDH, 55% female. Mean age and modified Rankin score was 70 (range: 48-95 years) and 1 (range: 0-3), respectively. 17 patients (94%) required a total of 20 MMA embolizations. 83% had unilateral MMA embolization and 17% had bilateral MMA embolizations. 100-300 μm Embospheres were used for the MMA embolization in 82% of the patients and 300-500 μm Embospheres in 18% of the patients. 33% had Burr hole prior to the procedure. 5% ( n= 1) patient had Burr hole evacuation after embolization due to Neurosurgeon preference, not neurological deterioration. 56 % patient received treatment to resume anticoagulation/antiplatelet and 44% received prophylactic embolization to prevent reaccumulation after Burr hole evacuation. Mean size of maximum diameter of SDH was 16.9 mm and 4.6 mm of midline shift on admission CT. Mean SDH size and midline shift at discharge was 13 mm and 2.27 respectively. 50% patients had 1 month follow up CT with mean SDH size was 8.2 mm (in comparison to 19.7 in these patients). 17 % (n=3) patients had complete resolution on 3 month follow up. The one patient treated with 300-500 μm Embospheres had an acute on chronic asymptomatic SDH on 1 month follow up CT, requiring accessory meningeal artery embolization with 100-300 μm Embospheres ultimately resulting complete resolution of the SDH at 1 month post embolization. Conclusion: Despite limited data available, Middle Meningeal artery embolization using 100-300 μm Embospheres leads to reproducible results to prevent recurrence of chronic subdural hematoma. A large randomized controlled study is needed to verify our results.

2021 ◽  
pp. neurintsurg-2021-017450
Author(s):  
Christina Onyinzo ◽  
Ansgar Berlis ◽  
Maria Abel ◽  
Manfred Kudernatsch ◽  
Christoph J Maurer

BackgroundChronic subdural hematoma (CSDH) is a common neurosurgical condition with high recurrence rates. Repeated microbleedings from fragile neo-vessels supplied by peripheral branches of the middle meningeal artery (MMA) are believed to be responsible for the growth and recurrence of CSDH. Thus, MMA embolization might be a promising method to prevent re-bleedings and recurrences. This study aims to assess the efficacy, complication rates, and mid-term outcome of MMA embolization with or without burr hole irrigation compared with burr hole irrigation alone.MethodsPatients diagnosed with CSDH who underwent MMA embolization and/or surgical treatment were retrospectively recruited to this single-center study. The outcome variables were defined as treatment-related complications, clinical outcome at discharge, rate of revision surgery, and CT findings during the follow-up period.ResultsA total of 132 patients with CSDH were included in the study. The use of antiplatelet/anticoagulant medication was significantly higher in the combined treatment and embolization group (p<0.001). A trend towards fewer revision surgeries was found in the group of patients who received MMA embolization combined with burr hole irrigation (p=0.083). Follow-up was available for 73 patients (55.3%) with a mean follow-up period of 3.4±2.2 months. Eight patients (15.1%) of the surgery group showed hematoma re-accumulation and needed surgical rescue, whereas only one patient (5.0%) of the combined treatment group needed revision surgery. In all patients treated with only MMA embolization, complete hematoma resolution was found.ConclusionMMA embolization is a safe and efficacious minimal invasive adjuvant and/or alternative procedure for the treatment of CSDH with a reduced recurrence rate.


2020 ◽  
pp. neurintsurg-2020-016552
Author(s):  
Joshua S Catapano ◽  
Andrew F Ducruet ◽  
Candice L Nguyen ◽  
Jacob F Baranoski ◽  
Tyler S Cole ◽  
...  

BackgroundRecently, middle meningeal artery (MMA) embolization has emerged as a potentially safe and effective method of treating chronic subdural hematoma (cSDH).ObjectiveTo report a single-center experience with MMA embolization and examines the type of embolic material used, the extent of penetration, and the number of MMA branches embolized.MethodsA retrospective analysis of all patients with MMA embolization from 2018 through 2019 was performed. A failed outcome was defined as either surgical rescue and/or greater than 10 mm of hematoma residual or reaccumulation following embolization.ResultsOf 35 patients, surgery had failed for 9 (26%) and initial conservative treatment had failed for 6 (17%). Of 41 MMA embolizations, including those in six patients with bilateral cSDH who underwent bilateral MMA embolization, 29 (72%) were performed using ethylene vinyl alcohol copolymer (Onyx), 7 (17%) using particles, and 5 (12%) using n-butyl cyanoacrylate. Both the anterior and posterior MMA divisions were embolized in 29 cases (71%); distal penetration of these branches was achieved in 25 embolizations (61%). Twenty-six (63%) cSDHs completely resolved. Complete resolution was seen in 22 of 29 hematomas (76%) in which both anterior and posterior MMA branches were occluded versus 4 of 12 (33%) following single-branch embolization (p=0.014). Embolization of one cSDH (2%) failed.ConclusionMMA embolization of cSDHs appears to be both safe and efficacious. Furthermore, embolization of both the anterior and posterior MMA branches may be associated with increased odds of complete resolution.


2021 ◽  
pp. 159101992110651
Author(s):  
Zachary S Hubbard ◽  
Sami Al Kasab ◽  
Guilherme B Porto ◽  
Alejandro Spiotta

Introduction Chronic subdural hematoma (CSDH) is one of the most commonly encountered neurosurgical diseases. Middle meningeal artery embolization (MMAE) is a technique for the management of CSDH that has elicited promising results. Despite the encouraging results of MMAE, recurrence does occur. One uncommon mechanism for recurrence of CSDH is by means of neovascularization of the contralateral middle meningeal artery (MMA). We describe two cases of CSDH recurrence by means of contralateral middle meningeal artery neovascularization treated with contralateral MMAE. Methods We identified two cases of recurrent subdural hematoma secondary to neovascularization following treatment with contralateral MMAE. Results Two patients initially treated with MMAE were identified with CSDH recurrence secondary to contralateral MMA neovascularization. There was no traumatic or coagulopathic contribution to CSDH recurrence. In both cases, patients underwent contralateral MMAE. Both patients were neurologically intact with radiographic improvement of CSDH at follow up. Conclusions Re-accumulation of SDH following MMAE by means of contralateral MMA neovascularization is a rare subtype of subdural hematoma (SDH) recurrence following MMAE. Within the context of re-accumulation of SDH following MMAE, catheter angiography is an important diagnostic investigation to elucidate the etiology of the recurrence. Furthermore, when angiography reveals neovascularization of the contralateral MMA, embolization of the contralateral MMA achieves good clinical and radiographic result.


2019 ◽  
Vol 126 ◽  
pp. e671-e678 ◽  
Author(s):  
Yu Okuma ◽  
Nobuyuki Hirotsune ◽  
Yu Sato ◽  
Tomoyuki Tanabe ◽  
Kenichiro Muraoka ◽  
...  

Author(s):  
Ahmed Elmashad ◽  
Ahmed Elmashad ◽  
Mohamad Fayad ◽  
Smit Patel ◽  
Jussie Lima ◽  
...  

Introduction : Chronic subdural hematoma (cSDH) is a common neurosurgical condition with a high recurrence rate. Middle meningeal artery (MMA) embolization has been shown to reduce the incidence of re‐bleeding and prevent recurrence of cSDH by devascularizing the subdural membranes and shifting the balance from continued leakage and accumulation of blood and proteinaceous material to reabsorption. We report our single center experience of MMA embolization for treatment of chronic and subacute subdural hematoma. Methods : We performed a retrospective chart review of all patients ≥18 years who underwent MMA embolization between 01/01/2020‐03/01/2021 for cSDH. We looked at the outcomes, rate of recurrence and possible complications after MMA embolization. A descriptive analysis for continuous and categorical variables was performed using SAS 9.4 version. Results : A total of 41 MMA embolizations were performed on 32 patients with a median age of 75 (Q1‐Q3 70–83). Median hematoma thickness was 12 mm. Among them, 52% patients underwent particle embolization while 48% underwent liquid embolization. One patient had recurrence on follow up imaging and required drainage with burr hole. Three patients underwent hematoma evacuation after MMA embolization without evidence of recurrence on imaging. Three cases were aborted due to high risk or difficult access. There were no procedure related complications in the whole study population. 65% patient achieved mRS 0–2 on 90 day follow up visit. There was no significant difference between particles and liquid embolizations. Conclusions : Middle meningeal artery embolization could be used as a safe and effective intervention for prevention of recurrence and improving outcomes of subacute or chronic subdural hematoma.


Author(s):  
Dimitri Sigounas ◽  
Kenneth Sack ◽  
George Thomas ◽  
Dimitri Sigounas

Aim: Middle Meningeal Artery (MMA) embolization has emerged as a viable neuroendovascular technique for the management of chronic subdural hematoma (SDH). Comparative analysis of various endovascular techniques for embolization is lacking. Guidance on operative techniques in situations of prior embolization failure is rare. Materials and Methods: In this case report, we present a patient with a chronic subdural hematoma that failed previous coil embolization of the MMA. Digital Subtraction Angiography showed the previously placed coil and continued distal flow to the dural membranes. Results: Onyx liquid embolization was completed successfully, effectively halting both anterograde flow to the MMA and retrograde flow from external circulation collaterals. Conclusion: This case report suggests that in situations of MMA embolization failure, follow-up angiography may be completed to determine if further embolization through other procedural techniques may be possible. The angiographic images contained here highlight the advantages of liquid embolization over coil embolization of the MMA in halting SDH angiogenesis.


2021 ◽  
Vol 2 (1) ◽  
Author(s):  
Gregory J Cannarsa ◽  
Joshua Olexa ◽  
Timothy Chryssikos ◽  
Aaron P Wessell ◽  
Ashish Sharma ◽  
...  

ABSTRACT BACKGROUND Previous case series have demonstrated safety and efficacy of middle meningeal artery (MMA) embolization as both adjuvant and stand-alone treatment of chronic subdural hematoma (cSDH). The safety and efficacy of stand-alone MMA embolization for treatment of giant (&gt;150 ml) cSDH in specifically elderly, frail patients is not well studied. OBJECTIVE To evaluate the safety and efficacy of stand-alone MMA embolization for treatment of giant cSDH in elderly, frail patients in whom traditional surgical intervention was deemed high risk. METHODS We reviewed the records of consecutive patients referred for MMA embolization and identified patients ≥ 75 yr with modified Frailty Index (mFI) ≥ 2 who underwent stand-alone MMA embolization for cSDH treatment with at least one follow-up imaging study. RESULTS A total of 42 patients were referred for MMA embolization with 5 patients meeting inclusion age and frailty criteria. The average age was 82.2 ± 6.8 yr. The median mFI was 3.0 (interquartile range (IQR) 2-4). Four patients were either on aspirin or thrombocytopenic. The average initial cSDH volume was 187.8 ± 31 ml with average initial midline shift of 8.0 ± 2.1 mm. The average length of stay was 4 ± 1.1 d. The average cSDH volume decrease on follow-up imaging was 68.5% ± 11.9%. Follow-up average midline shift decreased by 70% to 2.4 ± 1.4 mm. There were no peri-procedural or in-hospital complications. CONCLUSION In frail, elderly patients with giant cSDH, stand-alone MMA embolization was effective in reducing cSDH volume and improving presenting symptoms without complications.


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