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Demir MK, Kılıc D, Zorlu E, Kılıc T. Giant Intracranial Cavernous Malformations: A Review on Magnetic Resonance Imaging Characteristics. Indian J Radiol Imaging 2024; 34:511-521. [PMID: 38912256 PMCID: PMC11188748 DOI: 10.1055/s-0044-1779587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/25/2024] Open
Abstract
Background Intracranial cavernous malformations (CMs), commonly known as cavernomas or cavernous angiomas, are low-flow, well-circumscribed vascular lesions composed of sinusoidal spaces lined by a single layer of endothelium and separated by a collagenous matrix without elastin, smooth muscle, or other vascular wall elements. A diameter greater than 3 cm for a CM is unlikely. These lesions may have atypical appearances on magnetic resonance imaging (MRI). MRI with advanced techniques such as a susceptibility-weighted image or T2-gradient echo, a diffusion-weighted image and corresponding apparent diffusion coefficient map, and diffusion tensor tractography have revolutionized the diagnostic approach to these lesions. Materials and Method The present study reviews the etiopathogenesis, clinical manifestations, MRI strategy, and MRI appearances of the CMs, with a few examples of the giant CMs from our archive. Results Intracranial giant CMs may have unexpected locations, sizes, numbers, and varied imaging appearances due to repeated hemorrhages, unusual enhancement patterns, intense perifocal edema, and unusual associations, making the differential diagnosis difficult. Conclusion Familiarity with the MRI appearances of the giant intracranial CMs and the differential diagnosis improves diagnostic accuracy and patient management.
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Affiliation(s)
- Mustafa Kemal Demir
- Clinic of Radiology, Bahcesehir University Goztepe Medical Park Hospital, Istanbul, Turkey
| | - Deniz Kılıc
- Department of Neurosurgery, Bahcesehir University School of Medicine, Göztepe Medical Park Hospital, Istanbul, Turkey
| | - Emre Zorlu
- Department of Neurosurgery, Bahcesehir University School of Medicine, Göztepe Medical Park Hospital, Istanbul, Turkey
| | - Turker Kılıc
- Department of Neurosurgery, Bahcesehir University School of Medicine, Göztepe Medical Park Hospital, Istanbul, Turkey
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Calloni T, Carai A, Lioi F, Cavaliere M, DE Benedictis A, Rossi S, Randi F, Rossi Espagnet MC, Trivisano M, Cesario C, Pisaneschi E, Marasi A, Savioli A, Giussani CG, Marras CE. Surgical management of pediatric intracranial cerebral cavernous malformations: a 10-year single-center experience. J Neurosurg Sci 2024; 68:278-286. [PMID: 35416451 DOI: 10.23736/s0390-5616.22.05574-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Cerebral cavernous malformations (CCMs) are low-flow vascular malformations made up of dilated vascular spaces without intervening parenchyma that can occur throughout the central nervous system. CCMs can occur sporadically or in familial forms. Presentation is diverse, ranging from incidental discovery of asymptomatic CCMs to drug-resistant epilepsy and hemorrhages. METHODS We describe the surgical management of CCMs in pediatric patients at Bambino Gesù Children's Hospital in Rome over the last 10 years. The cases have been stratified based on the clinical presentation and the relevant literature is discussed accordingly. RESULTS We discuss the rationale and technique used in these cases based on their presentation, as well as the generally positive outcomes we achieved with early surgical management, use of intraoperative ultrasound (ioUS) and intraoperative neuromonitoring. CONCLUSIONS Surgical management of pediatric CCMs is a safe and effective strategy, low rates of postoperative morbidity and partial resection were observed.
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Affiliation(s)
- Tommaso Calloni
- Department of Medicine and Surgery, School of Medicine, University of Milan-Bicocca, Milan, Italy
- Neurosurgery Unit, Department of Neurosciences, IRCCS Bambino Gesù Children's Hospital, Rome, Italy
| | - Andrea Carai
- Neurosurgery Unit, Department of Neurosciences, IRCCS Bambino Gesù Children's Hospital, Rome, Italy -
| | - Francesco Lioi
- Division of Neurosurgery, Department of Neurology and Psychiatry, Sapienza University, Rome, Italy
| | - Marilou Cavaliere
- Department of Medicine and Surgery, School of Medicine, University of Milan-Bicocca, Milan, Italy
- Neurosurgery Unit, Department of Neurosciences, IRCCS Bambino Gesù Children's Hospital, Rome, Italy
| | - Alessandro DE Benedictis
- Neurosurgery Unit, Department of Neurosciences, IRCCS Bambino Gesù Children's Hospital, Rome, Italy
| | - Sabrina Rossi
- Pathology Unit, Department of Laboratories, IRCCS Bambino Gesù Children's Hospital, Rome, Italy
| | - Franco Randi
- Neurosurgery Unit, Department of Neurosciences, IRCCS Bambino Gesù Children's Hospital, Rome, Italy
| | - Maria C Rossi Espagnet
- Neuroradiology Unit, Imaging Department, IRCCS Bambino Gesù Children's Hospital, Rome, Italy
| | - Marina Trivisano
- Neurology Unit, Department of Neurosciences, IRCCS Bambino Gesù Children's Hospital, Rome, Italy
| | - Claudia Cesario
- Translational Cytogenomics Research Unit, IRCCS Bambino Gesù Children's Hospital, Rome, Italy
| | - Elisa Pisaneschi
- Translational Cytogenomics Research Unit, IRCCS Bambino Gesù Children's Hospital, Rome, Italy
| | - Alessandra Marasi
- Neurosurgery Unit, Department of Neurosciences, IRCCS Bambino Gesù Children's Hospital, Rome, Italy
| | - Alessandra Savioli
- Department of Anesthesia and Critical Care (ARCO), IRCCS Bambino Gesù Children's Hospital, Rome, Italy
| | - Carlo G Giussani
- Department of Medicine and Surgery, School of Medicine, University of Milan-Bicocca, Milan, Italy
- Neurosurgery Unit, Department of Neurosciences, San Gerardo Hospital, Monza, Italy
| | - Carlo E Marras
- Neurosurgery Unit, Department of Neurosciences, IRCCS Bambino Gesù Children's Hospital, Rome, Italy
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Bosisio L, Cognolato E, Nobile G, Mancardi MM, Nobili L, Pacetti M, Piatelli G, Giacomini T, Calevo MG, Fragola M, Venanzi MS, Consales A. Surgical treatment of cavernous malformation-related epilepsy in children: case series, systematic review, and meta-analysis. Neurosurg Rev 2024; 47:251. [PMID: 38819574 DOI: 10.1007/s10143-024-02491-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2024] [Revised: 05/07/2024] [Accepted: 05/25/2024] [Indexed: 06/01/2024]
Abstract
OBJECTIVE Cerebral cavernous malformations (CCMs) are cerebral vascular lesions that occasionally occur with seizures. We present a retrospective case series from IRCCS Gaslini Children's Hospital, a systematic review, and meta-analysis of the literature with the goal of elucidating the post-surgery seizure outcome in children with CCMs. METHODS a retrospective review of children with cavernous malformation related epilepsy who underwent surgery at Gaslini Children's Hospital from 2005 to 2022 was conducted. We also conducted a comprehensive search on PubMed/MEDLINE and Scopus databases from January 1989 to August 2022. Inclusion criteria were: presence of CCMs-related epilepsy, in under 18 years old subjects with a clear lesion site. Presence of post-surgery seizure outcome and follow-up ≥ 12 months. RESULTS we identified 30 manuscripts and 223 patients with CCMs-related epilepsy, including 17 patients reported in our series. We identified 85.7% Engel class I subjects. The risk of expected neurological deficits was 3.7%; that of unexpected neurological deficits 2.8%. We found no statistically significant correlations between Engel class and the following factors: site of lesion, type of seizure, drug resistance, duration of disease, type of surgery, presence of multiple CCMs. However, we found some interesting trends: longer disease duration and drug resistance seem to be more frequent in subjects in Engel class II, III and IV; multiple cavernomas would not seem to influence seizure outcome. CONCLUSIONS epilepsy surgery in children with CCMs is a safe and successful treatment option. Further studies are necessary to define the impact of clinical features on seizure prognosis.
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Affiliation(s)
- Luca Bosisio
- Child Neuropsychiatry, Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health Department of Neuroscience (DINOGMI), IRCCS Istituto Giannina Gaslini, University of Genoa, Genoa, Italy.
| | - Erica Cognolato
- Child Neuropsychiatry, Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health Department of Neuroscience (DINOGMI), IRCCS Istituto Giannina Gaslini, University of Genoa, Genoa, Italy
| | - Giulia Nobile
- Child Neuropsychiatry Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | | | - Lino Nobili
- Child Neuropsychiatry, Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health Department of Neuroscience (DINOGMI), IRCCS Istituto Giannina Gaslini, University of Genoa, Genoa, Italy
- Child Neuropsychiatry Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Mattia Pacetti
- Pediatric Neurosurgery Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Gianluca Piatelli
- Pediatric Neurosurgery Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Thea Giacomini
- Child Neuropsychiatry Unit, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Maria Grazia Calevo
- Epidemiology and Biostatistics Unit, Scientific Direction, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Martina Fragola
- Epidemiology and Biostatistics Unit, Scientific Direction, IRCCS Istituto Giannina Gaslini, Genoa, Italy
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Nico E, Adereti CO, Hackett AM, Bianconi A, Naik A, Eberle AT, Cifre Serra PJ, Koester SW, Malnik SL, Fox BM, Hartke JN, Winkler EA, Catapano JS, Lawton MT. Assessing the Relationship between Surgical Timing and Postoperative Seizure Outcomes in Cavernoma-Related Epilepsy: A Single-Institution Retrospective Analysis of 63 Patients with a Review of the Literature. Brain Sci 2024; 14:494. [PMID: 38790473 PMCID: PMC11120247 DOI: 10.3390/brainsci14050494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 04/19/2024] [Accepted: 04/20/2024] [Indexed: 05/26/2024] Open
Abstract
Background: Patients with supratentorial cavernous malformations (SCMs) commonly present with seizures. First-line treatments for cavernoma-related epilepsy (CRE) include conservative management (antiepileptic drugs (AEDs)) and surgery. We compared seizure outcomes of CRE patients after early (≤6 months) vs. delayed (>6 months) surgery. Methods: We compared outcomes of CRE patients with SCMs surgically treated at our large-volume cerebrovascular center (1 January 2010-31 July 2020). Patients with 1 sporadic SCM and ≥1-year follow-up were included. Primary outcomes were International League Against Epilepsy (ILAE) class 1 seizure freedom and AED independence. Results: Of 63 CRE patients (26 women, 37 men; mean ± SD age, 36.1 ± 14.6 years), 48 (76%) vs. 15 (24%) underwent early (mean ± SD, 2.1 ± 1.7 months) vs. delayed (mean ± SD, 6.2 ± 7.1 years) surgery. Most (32 (67%)) with early surgery presented after 1 seizure; all with delayed surgery had ≥2 seizures. Seven (47%) with delayed surgery had drug-resistant epilepsy. At follow-up (mean ± SD, 5.4 ± 3.3 years), CRE patients with early surgery were more likely to have ILAE class 1 seizure freedom and AED independence than those with delayed surgery (92% (44/48) vs. 53% (8/15), p = 0.002; and 65% (31/48) vs. 33% (5/15), p = 0.03, respectively). Conclusions: Early CRE surgery demonstrated better seizure outcomes than delayed surgery. Multicenter prospective studies are needed to validate these findings.
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Affiliation(s)
- Elsa Nico
- Department of Neurosurgery, Barrow Neurological Institute, St. Joseph’s Hospital and Medical Center, Phoenix, AZ 85013, USA
| | - Christopher O. Adereti
- Department of Neurosurgery, Lahey Hospital and Medical Center, Burlington, MA 01805, USA
| | - Ashia M. Hackett
- Department of Neurosurgery, Barrow Neurological Institute, St. Joseph’s Hospital and Medical Center, Phoenix, AZ 85013, USA
| | - Andrea Bianconi
- Department of Neurosurgery, Barrow Neurological Institute, St. Joseph’s Hospital and Medical Center, Phoenix, AZ 85013, USA
| | - Anant Naik
- Department of Neurosurgery, Barrow Neurological Institute, St. Joseph’s Hospital and Medical Center, Phoenix, AZ 85013, USA
| | - Adam T. Eberle
- Department of Neurosurgery, Barrow Neurological Institute, St. Joseph’s Hospital and Medical Center, Phoenix, AZ 85013, USA
| | - Pere J. Cifre Serra
- Department of Neurosurgery, Barrow Neurological Institute, St. Joseph’s Hospital and Medical Center, Phoenix, AZ 85013, USA
| | - Stefan W. Koester
- Department of Neurosurgery, Barrow Neurological Institute, St. Joseph’s Hospital and Medical Center, Phoenix, AZ 85013, USA
| | - Samuel L. Malnik
- Department of Neurosurgery, Barrow Neurological Institute, St. Joseph’s Hospital and Medical Center, Phoenix, AZ 85013, USA
| | - Brandon M. Fox
- Department of Neurosurgery, Barrow Neurological Institute, St. Joseph’s Hospital and Medical Center, Phoenix, AZ 85013, USA
| | - Joelle N. Hartke
- Department of Neurosurgery, Barrow Neurological Institute, St. Joseph’s Hospital and Medical Center, Phoenix, AZ 85013, USA
| | - Ethan A. Winkler
- Department of Neurosurgery, Barrow Neurological Institute, St. Joseph’s Hospital and Medical Center, Phoenix, AZ 85013, USA
| | - Joshua S. Catapano
- Department of Neurosurgery, Barrow Neurological Institute, St. Joseph’s Hospital and Medical Center, Phoenix, AZ 85013, USA
| | - Michael T. Lawton
- Department of Neurosurgery, Barrow Neurological Institute, St. Joseph’s Hospital and Medical Center, Phoenix, AZ 85013, USA
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Fotakopoulos G, Georgakopoulou VE, Papalexis P, Spandidos DA, Trakas N, Sklapani P, Fountas KN. Management of intracranial cavernous malformations using conservative vs. surgical and/or radiosurgical treatment: A systematic review and meta‑analysis. Exp Ther Med 2024; 27:215. [PMID: 38590573 PMCID: PMC11000448 DOI: 10.3892/etm.2024.12503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Accepted: 03/05/2024] [Indexed: 04/10/2024] Open
Abstract
Intracranial cavernous malformations (CMs) are vascular lesions with a high bleeding rate. At present, the debate regarding their treatment is still ongoing. The present systematic review and meta-analysis aimed to evaluate the safety of surgery or radiosurgery (SRS) for the management of CMs and to determine their potential outcomes compared with conservative treatment. The present systematic review and meta-analysis investigated the relative articles involving the management of intracranial CMs, namely their natural history (conservative treatment) vs. surgical/SRS treatment through electronic databases until June, 2023. The collected variables included the first author's name, the study period covered, the year of publication, the total number of patients examined and their age, and the number of males. In total, six articles met the eligibility criteria. The total number of patients was 399 (157 in the surgery/SRS group and 242 in the conservative treatment group). The results revealed that surgical or SRS management is a safe procedure for CMs compared with conservative treatment. Notably, the use of hemosiderin in the pre-MRI, the free of seizures parameter and the neurological deficit parameters were associated with improved outcomes in the surgical or SRS group of patients.
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Affiliation(s)
- George Fotakopoulos
- Department of Neurosurgery, General University Hospital of Larissa, 41221 Larissa, Greece
| | | | - Petros Papalexis
- Unit of Endocrinology, First Department of Propedeutic and Internal Medicine, Laiko General Hospital, National and Kapodistrian University of Athens, 11527 Athens, Greece
- Department of Biomedical Sciences, University of West Attica, 12243 Athens, Greece
| | - Demetrios A. Spandidos
- Laboratory of Clinical Virology, School of Medicine, University of Crete, 71003 Heraklion, Greece
| | - Nikolaos Trakas
- Department of Biochemistry, Sismanogleio Hospital, 15126 Athens, Greece
| | - Pagona Sklapani
- Department of Biochemistry, Sismanogleio Hospital, 15126 Athens, Greece
| | - Kostas N. Fountas
- Department of Neurosurgery, General University Hospital of Larissa, 41221 Larissa, Greece
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6
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Tasiou A, Brotis AG, Kalogeras A, Tzerefos C. Cavernous malformations of the central nervous system: An international consensus statement. BRAIN & SPINE 2023; 3:102707. [PMID: 38020995 PMCID: PMC10668094 DOI: 10.1016/j.bas.2023.102707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 10/19/2023] [Accepted: 11/04/2023] [Indexed: 12/01/2023]
Abstract
Introduction Cavernous malformations (CM) of the central nervous system constitute rare vascular lesions. They are usually asymptomatic, which has allowed their management to become quite debatable. Even when they become symptomatic their optimal mode and timing of treatment remains controversial. Research question A consensus may navigate neurosurgeons through the decision-making process of selecting the optimal treatment for asymptomatic and symptomatic CMs. Material and methods A 17-item questionnaire was developed to address controversial issues in relation to aspects of the treatment, surgical planning, optimal surgical strategy for specific age groups, the role of stereotactic radiosurgery, as well as a follow-up pattern. Consequently, a three-stage Delphi process was ran through 19 invited experts with the goal of reaching a consensus. The agreement rate for reaching a consensus was set at 70%. Results A consensus for surgical intervention was reached on the importance of the patient's age, symptomatology, and hemorrhagic recurrence; and the CM's location and size. The employment of advanced MRI techniques is considered of value for surgical planning. Observation for asymptomatic eloquent or deep-seated CMs represents the commonest practice among our panel. Surgical resection is considered when a deep-seated CM becomes symptomatic or after a second bleeding episode. Asymptomatic, image-proven hemorrhages constituted no indication for surgical resection for our panelists. Consensus was also reached on not resecting any developmental venous anomalies, and on resecting the associated hemosiderin rim only in epilepsy cases. Discussion and conclusion Our Delphi consensus provides an expert common practice for specific controversial issues of CM patient management.
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Affiliation(s)
- Anastasia Tasiou
- Department of Neurosurgery, University Hospital of Larissa, Faculty of Medicine, University of Thessaly, Larissa, Greece
| | - Alexandros G. Brotis
- Department of Neurosurgery, University Hospital of Larissa, Faculty of Medicine, University of Thessaly, Larissa, Greece
| | - Adamantios Kalogeras
- Department of Neurosurgery, University Hospital of Larissa, Faculty of Medicine, University of Thessaly, Larissa, Greece
| | - Christos Tzerefos
- Department of Neurosurgery, University Hospital of Larissa, Faculty of Medicine, University of Thessaly, Larissa, Greece
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Oh H, Im K, Yang HR, Kim HJ, Koo YS, Lee SA. Seizure outcome in medically treated patients with adult-onset epilepsy and cerebral cavernous malformation. Clin Neurol Neurosurg 2023; 233:107951. [PMID: 37683297 DOI: 10.1016/j.clineuro.2023.107951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 08/02/2023] [Accepted: 08/24/2023] [Indexed: 09/10/2023]
Abstract
PURPOSE We evaluated long-term seizure outcomes of antiseizure medications (ASMs) and risk factors for drug resistance in patients with adult-onset epilepsy associated with cerebral cavernous malformation (CCM). MATERIALS AND METHODS This retrospective observational study included patients newly diagnosed with adult-onset focal epilepsy associated with CCM. Patients received individualized treatments with ASMs. All patients were followed-up for at least 2 years. The main outcome measure was terminal 2 year seizure freedom (2-YSF). RESULTS Forty eight subjects (28 men and 20 women) were included. Thirty-one (64.6%) subjects achieved a terminal 2-YSF (range 2.0-17.0 years). After treatment with the first drug regimen, 31 (64.6%) subjects achieved 2-YSF, with 23 remaining seizure-free until final follow-up visit. Of the 23 subjects treated with the second drug regimen and the six treated with the third drug regimen, ten (43.5%) and one (16.7%), respectively, achieved a terminal 2-YSF. Stepwise logistic regression analyses showed that terminal 2-YSF was negatively associated with epileptiform discharge on EEG at the time of diagnosis (odds ratio = 0.214, p = 0.047) and tended to be associated with age ≥ 45 years at seizure onset (odds ratio = 4.260, p = 0.056). CONCLUSION The present study found that 64.6% of CCM patients with adult-onset epilepsy achieved terminal 2-YSF after ASM initiation. Interictal epileptiform discharge on EEG at the time of diagnosis was associated with poor prognosis. Failure to achieve sustained seizure freedom after two ASMs may indicate the need for surgical treatment.
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Affiliation(s)
- Hyunsun Oh
- Department of Neurology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Kayeong Im
- Department of Neurology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Ha-Rin Yang
- Department of Neurology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Hyo Jae Kim
- Department of Neurology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Yong Seo Koo
- Department of Neurology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea
| | - Sang-Ahm Lee
- Department of Neurology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Republic of Korea.
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8
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Santos AN, Rauschenbach L, Riess C, Georgiades I, Fiçilar B, Gallardo EG, Quesada CM, Li Y, Tippelt S, Dohna-Schwake C, Schmidt B, Jabbarli R, Siegel AM, Benet A, Wrede KH, Sure U, Dammann P. Outcome after conservative or surgical treatment for new-onset epilepsy in children with cerebral cavernous malformation. Seizure 2023; 111:23-29. [PMID: 37494759 DOI: 10.1016/j.seizure.2023.07.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 07/09/2023] [Accepted: 07/16/2023] [Indexed: 07/28/2023] Open
Abstract
OBJECTIVE This study aimed to investigate and compare the outcome of conservatively or surgically treated children with cerebral cavernous malformation (CCM) and new-onset CCM-related epilepsy (CRE) during a 5-year period. METHODS In this observational monocentric cohort study, data were collected ambispectivley. Our database was screened for CCM patients treated between 2003 and 2020. Patients ≤18 years of age with complete magnetic resonance imaging dataset, clinical baseline characteristics, and diagnosis of new-onset CRE were included. Definite seizure control was classified as International League Against Epilepsy class <2. Functional outcome was assessed using the modified Rankin Scale score. CRE patients were separated into two groups according to their treatment modality. Seizure control, intake of antiseizure medication, and functional outcomes were assessed. Systematic literature research was performed to identify other cases of new-onset CRE in children and to compare the collected data with published data. RESULTS Thirty-nine pediatric CRE patients were analyzed. A total of 18 (46.1%) patients were conservatively treated, while 21 (53.8%) underwent surgical CCM removal. While the functional outcome was similar in both groups at the last follow-up, definite seizure control was better in the surgical group (77.8%) than in the conservative group (25.0%) both after 5-years of follow-up (p = 0.038), and at last follow-up with 85.7% versus 50% respectively (p = 0.035). We found substantially higher rates of discontinuation of antiseizure medication at the last available follow-up in patients undergoing surgical resection (p = 0.009). The systematic literature review identified 4 studies with a total of 30 additional children with early onset CRE. CONCLUSION Surgical treatment of pediatric patients with new-onset CRE had higher rates of complete seizure control and early discontinuation of antiseizure medication than conservative treatment. Neurological outcomes of patients managed surgically or conservatively were comparable. These results encourage early surgical management of children with CRE even in the absence of pharmacoresistant epilepsy, but randomized control trials are urgently needed for further decision-making.
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Affiliation(s)
- Alejandro N Santos
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany; Center for Translational Neuro- & Behavioral Sciences (C-TNBS), University Duisburg Essen, Essen, Germany.
| | - Laurèl Rauschenbach
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany; Center for Translational Neuro- & Behavioral Sciences (C-TNBS), University Duisburg Essen, Essen, Germany
| | - Christoph Riess
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany; Center for Translational Neuro- & Behavioral Sciences (C-TNBS), University Duisburg Essen, Essen, Germany
| | - Iason Georgiades
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany; Center for Translational Neuro- & Behavioral Sciences (C-TNBS), University Duisburg Essen, Essen, Germany
| | - Berrin Fiçilar
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany; Center for Translational Neuro- & Behavioral Sciences (C-TNBS), University Duisburg Essen, Essen, Germany
| | - Enrique G Gallardo
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany; Center for Translational Neuro- & Behavioral Sciences (C-TNBS), University Duisburg Essen, Essen, Germany
| | - Carlos M Quesada
- Department for Neurology, University Hospital Essen, Essen, Germany
| | - Yan Li
- Institute of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, Essen, Germany
| | - Stephan Tippelt
- Department of Pediatrics, University Hospital of Essen, Essen, Germany
| | | | - Börge Schmidt
- Institute for Medical Informatics, Biometry and Epidemiology, University Hospital Essen, Essen, Germany
| | - Ramazan Jabbarli
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany; Center for Translational Neuro- & Behavioral Sciences (C-TNBS), University Duisburg Essen, Essen, Germany
| | - Adrian M Siegel
- Department of Neurology, University of Zurich, Zurich, Switzerland
| | - Arnau Benet
- Department of Neurosurgery, Barrow Neurological Institute, Phoenix, USA
| | - Karsten H Wrede
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany; Center for Translational Neuro- & Behavioral Sciences (C-TNBS), University Duisburg Essen, Essen, Germany
| | - Ulrich Sure
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany; Center for Translational Neuro- & Behavioral Sciences (C-TNBS), University Duisburg Essen, Essen, Germany
| | - Philipp Dammann
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany; Center for Translational Neuro- & Behavioral Sciences (C-TNBS), University Duisburg Essen, Essen, Germany
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9
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Benet A, Spetzler RF. Cavernous Malformations: What They Have Taught Us. Neurosurgery 2023; 69:9-21. [PMID: 36924486 DOI: 10.1227/neu.0000000000002400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 01/13/2023] [Indexed: 03/18/2023] Open
Affiliation(s)
- Arnau Benet
- Department of Neurosurgery, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, Arizona, USA
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10
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Santos AN, Rauschenbach L, Gull HH, Olbrich A, Lahl K, Darkwah Oppong M, Dinger TF, Rieß C, Chen B, Lenkeit A, Schmidt B, Li Y, Jabbarli R, Wrede KH, Sure U, Dammann P. Central nervous system cavernous malformations: cross-sectional study assessing rebleeding risk after a second haemorrhage. Eur J Neurol 2023; 30:144-149. [PMID: 36181703 DOI: 10.1111/ene.15574] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 09/09/2022] [Accepted: 09/12/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND AND PURPOSE The purpose of this study was to investigate the 5-year risk of a third bleeding event in cavernous malformations (CMs) of the central nervous system. METHODS Patients with cerebral or spinal CMs treated between 2003 and 2021 were screened using our institutional database. Patients with a complete magnetic resonance imaging dataset, clinical baseline characteristics, and history of two bleeding events were included. Patients who underwent surgical CM removal were excluded. Neurological functional status was obtained using the modified Rankin Scale score at the second and third bleeding. Kaplan-Meier and Cox regression analyses were performed to determine the cumulative 5-year risk for a third haemorrhage. RESULTS Forty-two patients were included. Cox regression analysis adjusted for age and sex did not identify risk factors for a third haemorrhage. 37% of patients experienced neurological deterioration after the third haemorrhage (p = 0.019). The cumulative 5-year risk of a third bleeding was 66.7% (95% confidence interval [CI] 50.4%-80%) for the whole cohort, 65.9% (95% CI 49.3%-79.5%) for patients with bleeding at initial diagnosis, 72.7% (95% CI 39.3%-92.7%) for patients with a developmental venous anomaly, 76.9% (95% CI 55.9%-90.3%) for patients with CM localization to the brainstem and 75% (95% CI 50.6%-90.4%) for patients suffering from familial CM disease. CONCLUSIONS During an untreated 5-year follow-up after a second haemorrhage, a significantly increased risk of a third haemorrhage compared to the known risk of a first and second bleeding event was identified. The third bleeding was significantly associated with neurological deterioration. These findings may justify a surgical treatment after a second bleeding event.
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Affiliation(s)
- Alejandro N Santos
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany.,Center for Translational Neuroscience and Behavioral Science (C-TNBS), University of Duisburg-Essen, Essen, Germany
| | - Laurèl Rauschenbach
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany.,Center for Translational Neuroscience and Behavioral Science (C-TNBS), University of Duisburg-Essen, Essen, Germany
| | - Hanah Hadice Gull
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany.,Center for Translational Neuroscience and Behavioral Science (C-TNBS), University of Duisburg-Essen, Essen, Germany
| | - Angelina Olbrich
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany.,Center for Translational Neuroscience and Behavioral Science (C-TNBS), University of Duisburg-Essen, Essen, Germany
| | - Kirstin Lahl
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany
| | - Marvin Darkwah Oppong
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany.,Center for Translational Neuroscience and Behavioral Science (C-TNBS), University of Duisburg-Essen, Essen, Germany
| | - Thiemo F Dinger
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany.,Center for Translational Neuroscience and Behavioral Science (C-TNBS), University of Duisburg-Essen, Essen, Germany
| | - Christoph Rieß
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany.,Center for Translational Neuroscience and Behavioral Science (C-TNBS), University of Duisburg-Essen, Essen, Germany
| | - Bixia Chen
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany.,Center for Translational Neuroscience and Behavioral Science (C-TNBS), University of Duisburg-Essen, Essen, Germany
| | - Annika Lenkeit
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany.,Center for Translational Neuroscience and Behavioral Science (C-TNBS), University of Duisburg-Essen, Essen, Germany
| | - Börge Schmidt
- Institute for Medical Informatics, Biometry and Epidemiology, University Hospital of Essen, Essen, Germany
| | - Yan Li
- Institute of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, Essen, Germany
| | - Ramazan Jabbarli
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany.,Center for Translational Neuroscience and Behavioral Science (C-TNBS), University of Duisburg-Essen, Essen, Germany
| | - Karsten H Wrede
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany.,Center for Translational Neuroscience and Behavioral Science (C-TNBS), University of Duisburg-Essen, Essen, Germany
| | - Ulrich Sure
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany.,Center for Translational Neuroscience and Behavioral Science (C-TNBS), University of Duisburg-Essen, Essen, Germany
| | - Philipp Dammann
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany.,Center for Translational Neuroscience and Behavioral Science (C-TNBS), University of Duisburg-Essen, Essen, Germany
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11
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Shim Y, Phi JH, Wang KC, Cho BK, Lee JY, Koh EJ, Kim KH, Lee EJ, Kim KJ, Kim SK. Clinical outcomes of pediatric cerebral cavernous malformation: an analysis of 124 consecutive cases. J Neurosurg Pediatr 2022; 30:474-483. [PMID: 36057124 DOI: 10.3171/2022.7.peds22299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 07/20/2022] [Indexed: 11/06/2022]
Abstract
OBJECTIVE One-fourth of cerebral cavernous malformation (CCM) patients are children, but studies on these patients are scarce. This study aimed to identify the clinical presentation of pediatric CCM patients and to investigate clinical outcomes according to the treatment modalities applied on the basis of our institution's treatment strategy. METHODS The authors performed a retrospective analysis of 124 pediatric CCM patients with a follow-up of more than 1 year from 2000 to 2019. They performed resection (n = 62) on lesions causing intractable seizure, rebleeding, or mass effect and observed the clinical courses of patients with lesions in deep or eloquent areas without persistent symptoms (n = 52). Radiosurgery (n = 10) was performed when the patient refused resection or strongly desired radiosurgery. The authors investigated the clinical characteristics, performance status (modified Rankin Scale [mRS] score), and rebleeding rate at the 1-year and last follow-up examinations and compared these among 3 groups classified on the basis of treatment applied. The authors evaluated seizure outcomes at the 1-year and last follow-up examinations for the surgery (n = 32) and observation (n = 17) groups. Finally, the authors drew cumulative incidence curves for the discontinuation of antiepileptic drugs (AEDs) for patients in the surgery (n = 30) and observation (n = 9) groups. RESULTS The 3 groups showed slight differences in initial symptoms, lesion locations, and rates of recent hemorrhage. The proportion of patients with improved mRS score at the 1-year follow-up was significantly greater in the surgery group than in the other groups (67% of the surgery group, 52% observation group, and 40% radiosurgery group; p = 0.078), as well as at the last follow-up (73% surgery group, 54% observation group, and 60% radiosurgery group; p = 0.097). The surgery group also had the lowest rebleeding rate during the follow-up period (2% surgery group, 11% observation group, and 20% radiosurgery group; p = 0.021). At the 1-year follow-up, the proportion of seizure-free patients without AEDs was significantly higher in the surgery group than the observation group (88% surgery group vs 53% observation group, p < 0.001), and similar results were obtained at the last follow-up (91% surgery group vs 56% observation group, p = 0.05). The 5-year AED-free rates for the surgery and observation groups were 94% and 50%, respectively, on the cumulative incidence curve (p = 0.049). CONCLUSIONS The clinical presentation of pediatric CCM patients was not significantly different from that of adult patients. Lesionectomy may be acceptable for pediatric CCM patients with indications of persistent seizures despite AED medications, rebleeding, and mass effects.
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Affiliation(s)
- Youngbo Shim
- 1Division of Pediatric Neurosurgery, Seoul National University Children's Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Ji Hoon Phi
- 1Division of Pediatric Neurosurgery, Seoul National University Children's Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Kyu-Chang Wang
- 2Neuro-oncology Clinic, Center for Rare Cancers, National Cancer Center, Goyang, Republic of Korea
| | - Byung-Kyu Cho
- 3Department of Neurosurgery, Armed Forces Capital Hospital, Seongnam, Republic of Korea
| | - Ji Yeoun Lee
- 1Division of Pediatric Neurosurgery, Seoul National University Children's Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
- 4Department of Anatomy and Cell Biology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Eun Jung Koh
- 1Division of Pediatric Neurosurgery, Seoul National University Children's Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Kyung Hyun Kim
- 1Division of Pediatric Neurosurgery, Seoul National University Children's Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Eun Jung Lee
- 5Department of Neurosurgery, Seoul National University Hospital, Seoul, Republic of Korea
| | - Ki Joong Kim
- 6Division of Pediatric Neurology, Seoul National University Children's Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea; and
| | - Seung-Ki Kim
- 1Division of Pediatric Neurosurgery, Seoul National University Children's Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
- 7Neuroscience Research Institute, Seoul National University College of Medicine, Seoul, Republic of Korea
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12
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Han RH, Johnson GW, Coxon AT, Gupta VP, Richards MJ, Lancia S, Salter A, Miller-Thomas MM, Dacey RG, Zipfel GJ, Osbun JW. Comparative Effectiveness of Management by Surgical Resection vs Observation for Cerebral Cavernous Malformations: A Matched Propensity Score Analysis. NEUROSURGERY OPEN 2022. [DOI: 10.1227/neuopn.0000000000000011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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13
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Rauschenbach L, Bartsch P, Santos AN, Lenkeit A, Darkwah Oppong M, Wrede KH, Jabbarli R, Chmielewski WX, Schmidt B, Quesada CM, Forsting M, Sure U, Dammann P. Quality of life and mood assessment in conservatively treated cavernous malformation-related epilepsy. Brain Behav 2022; 12:e2595. [PMID: 35470577 PMCID: PMC9226805 DOI: 10.1002/brb3.2595] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 03/03/2022] [Accepted: 04/04/2022] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND To estimate the quality of life, anxiety, depression, and illness perception in patients with medically treated cerebral cavernous malformation (CCM) and associated epilepsy. METHODS Nonsurgically treated patients with CCM-related epilepsy (CRE) were included. Demographic, radiographic, and clinical features were assessed. All participants received established questionnaires (short-form 36 health survey, SF-36; hospital anxiety and depression score, HADS-A/D; visual analogue scale score, VAS) assessing the functional and psychosocial burden of disease. To some extent, calculated values were compared with reference values from population-based studies. Test results were related to seizure control. RESULTS A total of 37 patients were included. Mean age was 45.8 ± 14.4 years, and 54.1% were female. Diagnosis of CRE was significantly associated with attenuated quality of life and increased level of anxiety, affecting physical and psychosocial dimensions. The assessment of illness perception identified considerable burden. HADS was significantly associated with VAS and SF-36 component scores. Efficacy of antiepileptic medication had no restoring impact on quality of life, anxiety, depression, or illness perception. CONCLUSIONS CRE negatively influences quality of life and mood, independent of seizure control due to antiepileptic medication. Screening for functional and psychosocial deficits in clinical practice might be useful for assessing individual burden and allocating surgical or drug treatment.
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Affiliation(s)
- Laurèl Rauschenbach
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany
| | - Pauline Bartsch
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany
| | - Alejandro N Santos
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany
| | - Annika Lenkeit
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany
| | - Marvin Darkwah Oppong
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany
| | - Karsten H Wrede
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany
| | - Ramazan Jabbarli
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany
| | - Witold X Chmielewski
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany
| | - Börge Schmidt
- Institute for Medical Informatics, Biometry and Epidemiology, University Hospital of Essen, Essen, Germany
| | - Carlos M Quesada
- Department of Neurology, Division of Epilepsy, University Hospital Essen, Essen, Germany
| | - Michael Forsting
- Department of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, Essen, Germany
| | - Ulrich Sure
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany
| | - Philipp Dammann
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany
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14
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Shih YC, Chou CC, Peng SJ, Yu HY, Hsu SPC, Lin CF, Lee CC, Yang HC, Chen YC, Kwan SY, Chen C, Wang SJ, Lin CJ, Lirng JF, Shih YH, Yen DJ, Liu YT. Clinical characteristics and long-term outcome of cerebral cavernous malformations-related epilepsy. Epilepsia 2022; 63:2056-2067. [PMID: 35593439 DOI: 10.1111/epi.17309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 05/06/2022] [Accepted: 05/18/2022] [Indexed: 11/30/2022]
Abstract
OBJECTIVE Cerebral cavernous malformations (CCMs) present variably and epileptic seizures are the most common symptom. The factors contributing to cavernoma-related epilepsy (CRE) and drug resistance remain inconclusive. The outcomes of CRE after different treatment modalities have not yet been fully addressed. This study aimed to characterize the clinical features of patients with CRE and the long-term seizure outcomes of medical and surgical treatment strategies. METHODS This was a retrospective cohort of 135 patients with CCM who were diagnosed in 2007~2011 and followed up for 93.6 months on average. The patients were divided into drug-resistant epilepsy (DRE) (n = 29), non-DRE (NDRE) (n = 45), and no epilepsy (NE) (n = 61). RESULTS Temporal CCM was the factor most strongly associated with the development of both CRE and DRE. The majority of patients with single temporal CCMs had CRE (86.8%, n = 33) and 50% had DRE, whereas only 14.7% (n = 5) with a non-temporal supratentorial CCM had DRE (P < 0.05). The most common lesion site in the DRE group was the mesiotemporal lobe (50%). Multiple CCMs were more frequently observed in the CRE (29.2%) than the NE (11.5%) group (P < 0.05). In patients with CRE, multiple lesions were associated with a higher rebleeding rate (odds ratio: 11.1), particularly in those with DRE (odds ratio: 15.4). The majority of patients who underwent resective surgery for DRE (76.5%, n = 13) achieved ILAE class I and II seizure outcomes even after a long disease course. SIGNIFICANCE Temporal CCM not only predisposes to CRE but is also a major risk factor for drug resistance. The mesiotemporal lobe is the most epileptogenic zone. Multiple CCMs are another risk factor for CRE and increase the rebleeding risk in these patients. Surgical resection could provide beneficial long-term seizure outcomes in patients with DRE.
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Affiliation(s)
- Yen-Cheng Shih
- Department of Neurology, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang Ming Chiao Tung University College of Medicine, Taipei, Taiwan
| | - Chien-Chen Chou
- Department of Neurology, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang Ming Chiao Tung University College of Medicine, Taipei, Taiwan.,Brain Research Centre, National Yang Ming Chiao Tung University College of Medicine, Taipei, Taiwan
| | - Syu-Jyun Peng
- Professional Master Program in Artificial Intelligence in Medicine, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Hsiang-Yu Yu
- Department of Neurology, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang Ming Chiao Tung University College of Medicine, Taipei, Taiwan.,Brain Research Centre, National Yang Ming Chiao Tung University College of Medicine, Taipei, Taiwan
| | - Sanford P C Hsu
- School of Medicine, National Yang Ming Chiao Tung University College of Medicine, Taipei, Taiwan.,Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Chun-Fu Lin
- School of Medicine, National Yang Ming Chiao Tung University College of Medicine, Taipei, Taiwan.,Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Cheng-Chia Lee
- School of Medicine, National Yang Ming Chiao Tung University College of Medicine, Taipei, Taiwan.,Brain Research Centre, National Yang Ming Chiao Tung University College of Medicine, Taipei, Taiwan.,Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Huai-Che Yang
- School of Medicine, National Yang Ming Chiao Tung University College of Medicine, Taipei, Taiwan.,Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Yi-Chieh Chen
- Department of Neurology, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan.,Institute of Brain Science, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Shang-Yeong Kwan
- Department of Neurology, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang Ming Chiao Tung University College of Medicine, Taipei, Taiwan
| | - Chien Chen
- Department of Neurology, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang Ming Chiao Tung University College of Medicine, Taipei, Taiwan.,Institute of Brain Science, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Shuu-Jiun Wang
- Department of Neurology, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang Ming Chiao Tung University College of Medicine, Taipei, Taiwan.,Brain Research Centre, National Yang Ming Chiao Tung University College of Medicine, Taipei, Taiwan.,Institute of Brain Science, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Chung-Jung Lin
- School of Medicine, National Yang Ming Chiao Tung University College of Medicine, Taipei, Taiwan.,Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Jiing-Feng Lirng
- School of Medicine, National Yang Ming Chiao Tung University College of Medicine, Taipei, Taiwan.,Brain Research Centre, National Yang Ming Chiao Tung University College of Medicine, Taipei, Taiwan.,Department of Radiology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Yang-Hsin Shih
- School of Medicine, National Yang Ming Chiao Tung University College of Medicine, Taipei, Taiwan.,Department of Neurosurgery, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Der-Jen Yen
- Department of Neurology, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang Ming Chiao Tung University College of Medicine, Taipei, Taiwan
| | - Yo-Tsen Liu
- Department of Neurology, Neurological Institute, Taipei Veterans General Hospital, Taipei, Taiwan.,School of Medicine, National Yang Ming Chiao Tung University College of Medicine, Taipei, Taiwan.,Brain Research Centre, National Yang Ming Chiao Tung University College of Medicine, Taipei, Taiwan.,Institute of Brain Science, National Yang Ming Chiao Tung University, Taipei, Taiwan
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15
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Dziedzic TA, Koczyk K, Nowak A, Maj E, Marchel A. Long-Term Management of Seizures after Surgical Treatment of Supratentorial Cavernous Malformations : A Retrospective Single Centre Study. J Korean Neurosurg Soc 2022; 65:415-421. [PMID: 35508959 PMCID: PMC9082132 DOI: 10.3340/jkns.2020.0224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Accepted: 07/21/2021] [Indexed: 11/27/2022] Open
Abstract
Objective Seizure recurrence after the first-ever seizure in patients with a supratentorial cerebral cavernous malformation (CCM) is almost certain, so the diagnosis and treatment of epilepsy is justified. The optimal method of management of these patients is still a matter of debate. The aim of our study was to identify factors associated with postoperative seizure control and assess the surgical morbidity rate.
Methods We retrospectively analysed 45 consecutive patients with a supratentorial CCM and symptomatic epilepsy in a single centre. Pre- and postoperative epidemiological data, seizure-related patient histories, neuroimaging results, surgery details and outcomes were obtained from hospital medical records. Seizure outcomes were assessed at least 12 months after surgery.
Results Thirty-five patients (77.8%) were seizure free at the long-term follow-up (Engel class I); six (13,3%) had rare, nocturnal seizures (Engel class II); and four (8.9%) showed meaningful improvement (Engel class III). In 15 patients (33%) in the Engel I group; it was possible to discontinue antiepileptic medication. Although there was not statistical significance, our results suggest that patients can benefit from early surgery. No deaths occurred in our study, and mild postoperative neurologic deficits were observed in two patients (4%) at the long-term follow-up.
Conclusion Surgical resection of CCMs should be considered in all patients with a supratentorial malformation and epilepsy due to the favourable surgical results in terms of the epileptic seizure control rate and low postoperative morbidity risk, despite the use of different predictors for the seizure outcome.
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16
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Earlier Age at Surgery for Brain Cavernous Angioma-Related Epilepsy May Achieve Complete Seizure Freedom without Aid of Anti-Seizure Medication. Brain Sci 2022; 12:brainsci12030403. [PMID: 35326359 PMCID: PMC8946282 DOI: 10.3390/brainsci12030403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 03/15/2022] [Accepted: 03/16/2022] [Indexed: 02/06/2023] Open
Abstract
Background: The present study hypothesized that some factors may distinguish between patients with a brain cavernous angioma (BCA), who were free from anti-seizure medication (ASM), and patients who still required ASMs postoperatively. The purpose of the study was thus to identify factors associated with ceasing ASMs for patients with drug-resistant epilepsy secondary to BCA, who underwent BCA removal surgery. Methods: We divided patients into those with drug-resistant epilepsy secondary to BCA who achieved complete seizure freedom without ASMs a year after surgery (No-ASM group) (International League Against Epilepsy (ILAE) classification class I with no epileptiform discharges), and others (ASM group) (ILAE classification ≤ II and/or epileptiform discharges). We statistically compared groups in terms of: (1) age at operation; (2) history of epilepsy; (3) size of BCA; and (4) location of BCA. Results: Overall, a year after the surgery, the No-ASM group comprised 12 patients (48%), and the ASM group comprised 13 patients (52%). In both multi- and univariate logistic regression analyses, age at BCA removal surgery correlated significantly with the No-ASM group (p = 0.043, p = 0.019), but history of epilepsy did not (p = 0.581, p = 0.585). Conclusions: Earlier age at surgery for patients with drug-resistant epilepsy is encouraged to achieve complete seizure freedom without the need for ASMs when the cause of epilepsy is BCA.
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17
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Remick M, McDowell MM, Gupta K, Felker J, Abel TJ. Emerging indications for stereotactic laser interstitial thermal therapy in pediatric neurosurgery. Int J Hyperthermia 2021; 37:84-93. [PMID: 32672117 DOI: 10.1080/02656736.2020.1769868] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Abstract
Surgical treatment of deep or difficult to access lesions represents a unique and significant challenge for pediatric neurosurgeons. The introduction of stereotactic magnetic resonance-guided laser interstitial thermal therapy (LITT) over the last decade has had a dramatic impact on the landscape of pediatric neurosurgery. LITT provides a safe and effective option for children with epilepsy from hypothalamic hamartoma that represents a ground-breaking new therapy for a condition which was historically very difficult to treat with previous neurosurgical techniques. LITT has also been used as an alternative surgical technique for mesial temporal sclerosis, focal cortical dysplasia, MR-negative epilepsy, cavernoma-related epilepsy, insular epilepsy, and corpus callosotomy among other epilepsy etiologies. In some cases, LITT has been associated with improved cognitive outcomes compared to standard techniques, as in mesial temporal lobe epilepsy. Initial experiences with LITT for neuro-oncologic processes are also promising. LITT is often attractive to patients and providers as a minimally invasive approach, but the differences in safety and clinical outcome between LITT and traditional approaches are still being studied. In this review, we examine the emerging indications and clinical evidence for LITT in pediatric neurosurgery.
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Affiliation(s)
- Madison Remick
- Department of Neurological Surgery, University of Pittsburgh, Pittsburgh, PA, USA
| | - Michael M McDowell
- Department of Neurological Surgery, University of Pittsburgh, Pittsburgh, PA, USA
| | - Kanupriya Gupta
- University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - James Felker
- Department of Pediatric Neuro-Oncology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Taylor J Abel
- Department of Neurological Surgery, University of Pittsburgh, Pittsburgh, PA, USA.,University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.,Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA
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18
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Seizure outcome in patients with cavernous malformation after early surgery. Epilepsy Behav 2021; 115:107662. [PMID: 33339740 DOI: 10.1016/j.yebeh.2020.107662] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 11/22/2020] [Accepted: 11/23/2020] [Indexed: 11/22/2022]
Abstract
OBJECTIVE To describe seizure outcome and complications in patients with cavernous malformations (CM) undergoing early versus late surgery. METHODS A database was created for all CM patients who presented with seizure referred to the neurosurgical clinic at an academic center. A telephone survey and chart review were conducted to evaluate for preoperative and postoperative seizure frequency. Postoperative seizure-free outcome of patients who had ≤2 preoperative seizures versus those that had >2 preoperative seizures was compared. RESULTS A total of 35 CM patients were included for analysis. Nineteen patients had ≤2 preoperative seizures and 16 patients had >2 preoperative seizures, six of them drug resistant for over two years. Among the ≤2 seizure group, 15 had only a single seizure before surgical resection. 94.7% of patients with ≤2 preoperative seizures and 62.5% of patients with >2 preoperative seizures were seizure free one year following surgical resection (p = 0.019). 78.9% of patients with ≤2 preoperative seizures and 25% of patients with >2 preoperative seizures were able to wean off AEDs (p < 0.001). Among those patients who had a single preoperative seizure, 100% of patients were seizure free at one year. CONCLUSIONS Early surgical resection for CM patients who present after a CM-related seizure is an effective, well tolerated treatment and has good chance to offer seizure freedom without the need for long-term antiepileptic medications. Outcome for patients operated with only one or two preoperative seizures may lead to better results than patients who delay the procedure.
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19
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Lam J, Moreau JT, Chen JK, Albrecht S, Saint-Martin C, Simard-Tremblay E, Baillet S, Klein D, Dudley RWR. Prosopagnosia seizure semiology in a 10-year-old boy: a functional neuroimaging study. BMJ Case Rep 2020; 13:13/12/e237228. [PMID: 33370980 PMCID: PMC7757463 DOI: 10.1136/bcr-2020-237228] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
We illustrate a case of post-traumatic recurrent transient prosopagnosia in a paediatric patient with a right posterior inferior temporal gyrus haemorrhage seen on imaging and interictal electroencephalogram abnormalities in the right posterior quadrant. Face recognition area mapping with magnetoencephalography (MEG) and functional MRI (fMRI) was performed to clarify the relationship between the lesion and his prosopagnosia, which showed activation of the right fusiform gyrus that colocalised with the lesion. Lesions adjacent to the right fusiform gyrus can result in seizures presenting as transient prosopagnosia. MEG and fMRI can help to attribute this unique semiology to the lesion.
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Affiliation(s)
- Jack Lam
- McConnell Brain Imaging Centre, Montreal Neurological Institute and Hospital, Montreal, Quebec, Canada
| | - Jeremy T Moreau
- McConnell Brain Imaging Centre, Montreal Neurological Institute and Hospital, Montreal, Quebec, Canada
| | - Jen-Kai Chen
- Cognitive Neuroscience Unit, Montreal Neurological Institute and Hospital, Montreal, Quebec, Canada,McGill University, Centre for Research on Brain Language and Music, Montreal, Quebec, Canada
| | - Steffen Albrecht
- Department of Pathology, Montreal Children’s Hospital, McGill University, Montréal, Quebec, Canada
| | - Christine Saint-Martin
- Department of Radiology, Montreal Children’s Hospital, McGill University, Montréal, Quebec, Canada
| | - Elisabeth Simard-Tremblay
- Department of Pediatrics, Division of Pediatric Neurology, Montreal Children’s Hospital, McGill University, Montréal, Quebec, Canada
| | - Sylvain Baillet
- McConnell Brain Imaging Centre, Montreal Neurological Institute and Hospital, Montreal, Quebec, Canada,McGill University, Centre for Research on Brain Language and Music, Montreal, Quebec, Canada,Department of Neurology and Neurosurgery, Montreal Neurological Institute, McGill University, Montreal, Quebec, Canada
| | - Denise Klein
- Cognitive Neuroscience Unit, Montreal Neurological Institute and Hospital, Montreal, Quebec, Canada,McGill University, Centre for Research on Brain Language and Music, Montreal, Quebec, Canada
| | - Roy WR Dudley
- Department of Pediatric Surgery, Neurosurgery Division, Montreal Children’s Hospital, McGill University, Montreal, Quebec, Canada
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20
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Gao X, Yue K, Sun J, Cao Y, Zhao B, Zhang H, Dai S, Zhang L, Luo P, Jiang X. Treatment of Cerebral Cavernous Malformations Presenting With Seizures: A Systematic Review and Meta-Analysis. Front Neurol 2020; 11:590589. [PMID: 33193057 PMCID: PMC7649328 DOI: 10.3389/fneur.2020.590589] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Accepted: 09/25/2020] [Indexed: 11/13/2022] Open
Abstract
Background: Cerebral cavernous malformations (CCMs) presenting with seizures can be treated with neurosurgery or radiosurgery, but the ideal treatment remains unclear. Currently, there is no adequate randomized controlled trial comparing surgical treatment and radiotherapy for epileptogenic CCMs. Therefore, we conducted a systematic review and meta-analysis of available data from published literature to compare the efficacy and safety of neurosurgery and radiosurgery for epileptogenic CCMs. Methods: We performed a comprehensive search of the Ovid MEDLINE, Web of Science, PubMed, China Biological Medicine and China National Knowledge Infrastructure databases for studies published between January 1994 and October 2019. The search terms were as follows: "epilepsy," "seizures," "brain cavernous hemangioma," "cerebral cavernous malformation," "cerebral cavernous hemangioma," "hemangioma, cavernous, central nervous system." Two researchers independently extracted the data and reviewed all the articles. We compared the advantages and disadvantages of the two treatments. Results: A total of 45 studies were included in our analysis. Overall, the seizure control rate was 79% (95% CI: 75-83%) for neurosurgery and 49% (95% CI: 38-59%) for radiosurgery. In the neurosurgery studies, 4.4% of patients experienced permanent morbidity, while no patients in the radiotherapy studies had permanent morbidity. In addition, the results of subgroup analysis showed that ethnicity, CCMs location and average lesion number are likely significant factors influencing the seizure outcome following treatment. Conclusions: The epilepsy control rate after neurosurgery was higher than that after radiosurgery, but neurosurgery also had a relatively higher rate of permanent morbidity.
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Affiliation(s)
- Xiangyu Gao
- Department of Neurosurgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Kangyi Yue
- Department of Neurosurgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Jidong Sun
- Department of Neurosurgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Yuan Cao
- Department of Neurosurgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Boyan Zhao
- Department of Neurosurgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Haofuzi Zhang
- Department of Neurosurgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Shuhui Dai
- Department of Neurosurgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Lei Zhang
- Department of Neurosurgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Peng Luo
- Department of Neurosurgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - Xiaofan Jiang
- Department of Neurosurgery, Xijing Hospital, Fourth Military Medical University, Xi'an, China
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21
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Lin F, He Q, Gao Z, Yu L, Wang D, Zheng S, Lin Y, Kang D. Treatments and outcomes of untreated cerebral cavernous malformations in China: study protocol of a nationwide multicentre prospective cohort study. BMJ Open 2020; 10:e037957. [PMID: 33122314 PMCID: PMC7597476 DOI: 10.1136/bmjopen-2020-037957] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
INTRODUCTION The treatment decision and long-term outcomes of previously untreated cerebral cavernous malformation (U-CCM) are still controversial. Therefore, we are conducting a nationwide multicentre prospective registry study in China to determine the natural history and effect of surgical treatment on long-term outcomes in Chinese people with U-CCM. METHODS AND ANALYSIS This study was started on 1 January 2018 and is currently ongoing. It is a cohort follow-up study across a 5-year period. Patients will be followed up for at least 3 years after inception. Patients with U-CCM will be enrolled from 24 Grade III, level A hospitals distributed all over China. The cohort size is estimated to be 1200 patients. Patients are registered in surgically treated group and conservatively treated group. Clinical characteristics, radiology information and laboratory data are prospectively collected using an electronic case report form through an electronic data capture system. The primary outcome of this study is poor clinical outcome at the last follow-up (modified Rankin Scale score >2 lasting at least 1 year). The secondary outcome includes symptomatic haemorrhage, drug refractory epilepsy, focal neurological deficits, morbidity and all-cause mortality during follow-up. Univariate and multivariate regression analysis will be performed to determine the risk factors for poor outcomes in all patients, and to estimate the effect of surgery. Life tables, Kaplan-Meier estimates, log-rank test and proportional hazards Cox regression will be used to analyse the follow-up data of conservatively treated patients to determine the natural history of U-CCM. Initial presentation and location of U-CCM are prespecified subgroup factors. ETHICS AND DISSEMINATION The study protocol and informed consent form have been reviewed and approved by the Research Ethical Committee of First Affiliated Hospital of Fujian Medical University (FAHFMU-2018-003).Written informed consent will be obtained from each adult participant or from the guardian of each paediatric participant. The final results will be published in peer-reviewed journals. TRIAL REGISTRATION NUMBER NCT03467295.
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Affiliation(s)
- Fuxin Lin
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
- Department of Neurosurgery, Fujian Neuromedicine Center, Fuzhou, China
| | - Qiu He
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
- Department of Neurosurgery, Fujian Neuromedicine Center, Fuzhou, China
| | - Zhuyu Gao
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
- Department of Neurosurgery, Fujian Neuromedicine Center, Fuzhou, China
| | - Lianghong Yu
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
- Department of Neurosurgery, Fujian Neuromedicine Center, Fuzhou, China
| | - Dengliang Wang
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
- Department of Neurosurgery, Fujian Neuromedicine Center, Fuzhou, China
| | - Shufa Zheng
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
- Department of Neurosurgery, Fujian Neuromedicine Center, Fuzhou, China
| | - Yuanxiang Lin
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
- Department of Neurosurgery, Fujian Neuromedicine Center, Fuzhou, China
| | - Dezhi Kang
- Department of Neurosurgery, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China
- Department of Neurosurgery, Fujian Neuromedicine Center, Fuzhou, China
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22
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Rinkel LA, Salman RAS, Rinkel GJE, Greving JP. Radiosurgical, neurosurgical, or no intervention for cerebral cavernous malformations: A decision analysis. Int J Stroke 2019; 14:939-945. [DOI: 10.1177/1747493019851290] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Introduction We aimed to evaluate the preferred treatment strategy for patients with symptomatic cerebral cavernous malformations (CCM). Methods In a decision model, we compared neurosurgical, radiosurgical, and conservative management. A literature review yielded the risks and outcomes of interventions, intracerebral hemorrhage (ICH), and seizures. Patients with CCM rated their quality of life to determine utilities. We estimated the expected number of quality-adjusted life years (QALYs) and the ICH recurrence risk over five years, according to mode of presentation and CCM location (brainstem vs. other). We performed analyses with a time horizon of five years. Results Using the best available data, the expected number of QALYs for brainstem CCM presenting with ICH or focal neurological deficit was 2.84 (95% confidence interval [CI]: 2.54–3.08) for conservative, 3.01 (95% CI: 2.86–3.16) for neurosurgical, and 3.03 (95% CI: 2.88–3.18) for radiosurgical intervention; those for non-brainstem CCM presenting with ICH or focal neurological deficit were 3.08 (95% CI: 2.85–3.31) for conservative, 3.21 (95% CI: 3.01–3.36) for neurosurgical, and 3.19 (95% CI: 2.98–3.37) for radiosurgical intervention. For CCM presenting with epilepsy, QALYs were 3.09 (95% CI: 3.03–3.16) for conservative, 3.33 (95% CI: 3.31–3.34) for neurosurgical, and 3.27 (95% CI: 3.24–3.30) for radiosurgical intervention. Discussion and conclusion For the initial five years after presentation, our study provides Class III evidence that for CCM presenting with ICH or focal neurological deficit conservative management is the first option, and for CCM presenting with epilepsy CCM intervention should be considered. More comparative studies with long-term follow-up are needed.
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Affiliation(s)
- Leon A Rinkel
- University Medical Centre Groningen, University of Groningen, Groningen, the Netherlands
| | | | - Gabriel JE Rinkel
- Department of Neurology and Neurosurgery, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Jacoba P Greving
- Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, the Netherlands
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23
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Affiliation(s)
- Christopher J Stapleton
- From the Department of Neurosurgery, Massachusetts General Hospital, Harvard Medical School, Boston
| | - Fred G Barker
- From the Department of Neurosurgery, Massachusetts General Hospital, Harvard Medical School, Boston.
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24
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Dammann P, Schaller C, Sure U. Should we resect peri-lesional hemosiderin deposits when performing lesionectomy in patients with cavernoma-related epilepsy (CRE)? Neurosurg Rev 2016; 40:39-43. [DOI: 10.1007/s10143-016-0797-5] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Accepted: 10/28/2016] [Indexed: 11/29/2022]
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