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Ille S, Schroeder A, Hostettler IC, Wostrack M, Meyer B, Krieg SM. Impacting the Treatment of Highly Eloquent Supratentorial Cerebral Cavernous Malformations by Noninvasive Functional Mapping-An Observational Cohort Study. Oper Neurosurg (Hagerstown) 2021; 21:467-477. [PMID: 34624894 DOI: 10.1093/ons/opab318] [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] [Received: 03/18/2021] [Accepted: 07/18/2021] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Cerebral cavernous malformations (CCM) may cause cavernoma-related epilepsy (CRE) and intracranial hemorrhage (ICH). Functional mapping has shown its usefulness during the resection of eloquent lesions including the treatment of brain arteriovenous malformations. OBJECTIVE To evaluate the impact of noninvasive functional mapping on decision-making and resection of eloquently located CCM. METHODS Of 126 patients with intracranial cavernomas, we prospectively included 40 consecutive patients (31.7%) with highly eloquent CCM between 2012 and 2020. We performed functional mapping via navigated transcranial magnetic stimulation (nTMS) motor mapping in 30 cases and nTMS language mapping in 20 cases. Twenty patients suffered from CRE. CCM caused ICH in 18 cases. RESULTS We used functional mapping data including function-based tractography in all cases. Indication toward (31 cases) or against (9 cases) CCM resection was influenced by noninvasive functional mapping in 36 cases (90%). We resected CCMs in 24 cases, and 7 patients refused the recommendation for surgery. In 19 and 4 cases, we used additional intraoperative neuromonitoring and awake craniotomy, respectively. Patients suffered from transient postoperative motor or language deficits in 2 and 2 cases, respectively. No patient suffered from permanent deficits. After 1 yr of follow-up, anti-epileptic drugs could be discontinued in all patients who underwent surgery but 1 patient. CONCLUSION Surgery-related deficit rates are low even for highly eloquent CCM and seizure outcome is excellent. The present results show that noninvasive functional mapping and function-based tractography is a useful tool for the decision-making process and during microsurgical resection of eloquently located CCM.
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Affiliation(s)
- Sebastian Ille
- Department of Neurosurgery, Klinikum rechts der Isar, Technical University of Munich, School of Medicine, Munich, Germany
| | - Axel Schroeder
- Department of Neurosurgery, Klinikum rechts der Isar, Technical University of Munich, School of Medicine, Munich, Germany
| | - Isabel C Hostettler
- Department of Neurosurgery, Klinikum rechts der Isar, Technical University of Munich, School of Medicine, Munich, Germany
| | - Maria Wostrack
- Department of Neurosurgery, Klinikum rechts der Isar, Technical University of Munich, School of Medicine, Munich, Germany
| | - Bernhard Meyer
- Department of Neurosurgery, Klinikum rechts der Isar, Technical University of Munich, School of Medicine, Munich, Germany
| | - Sandro M Krieg
- Department of Neurosurgery, Klinikum rechts der Isar, Technical University of Munich, School of Medicine, Munich, Germany
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Herten A, Saban D, Santos AN, Chen B, Darkwah Oppong M, Rauschenbach L, Jabbarli R, Wrede K, Bingel U, Müller D, Holle-Lee D, Schmidt B, Li Y, Sure U, Dammann P. The occurrence of neuropathic pain following surgery of brainstem cavernous malformations. Eur J Neurol 2021; 29:865-872. [PMID: 34762327 DOI: 10.1111/ene.15179] [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] [Received: 06/11/2021] [Accepted: 09/22/2021] [Indexed: 12/01/2022]
Abstract
BACKGROUND AND PURPOSE This study aimed to assess the occurrence and significance of postoperative neuropathic pain (NP) in patients with surgically treated brainstem cavernous malformations (BSCMs). METHODS Seventy-four BSCM patients surgically treated between 2003 and 2019 were reviewed for the occurrence of postoperative NP and related treatment. The relevance of BSCM location, preoperative characteristics, influence on functional outcome, postoperative health-related quality of life (HRQOL) and life satisfaction was evaluated. RESULTS Six out of 74 patients (8%) suffered from NP. The Leeds Assessment of Neuropathic Symptoms and Signs scores ranged from 12 to 16 (mean 14.28 ± 1.6). Visual analog scale pain was 5.2 ± 2.0. NP had no effect on preoperative characteristics or functional outcome. Bodily pain (HRQOL) and vocational time (life satisfaction) were significantly decreased in NP compared to non-NP patients. Specific BSCM location (regarding brainstem nuclei involved in pain processing) and other preoperative patient- and BSCM-related parameters were not associated with the occurrence of postoperative NP. Three out of six patients were currently under NP-specific treatment. The proportion of patients suffering from postoperative NP (8%) was substantially higher compared to previously published studies. The pain affected the HRQOL of patients, most of whom were insufficiently treated and not satisfied with treatment results. CONCLUSION Our findings may help to raise awareness for postoperative NP in BSCM, which is essential to improve diagnosis and initiation of proper treatment, as well as preoperative informed consent of patients.
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Affiliation(s)
- Annika Herten
- ¹Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany
| | - Dino Saban
- ¹Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany
| | - Alejandro N Santos
- ¹Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany
| | - Bixia Chen
- ¹Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany
| | - Marvin Darkwah Oppong
- ¹Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany
| | - Laurèl Rauschenbach
- ¹Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany
| | - Ramazan Jabbarli
- ¹Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany
| | - Karsten Wrede
- ¹Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany
| | - Ulrike Bingel
- Department of Neurology, Center for Translational Neuro- and Behavioral Sciences, University Hospital Essen, Essen, Germany
| | - Daniel Müller
- Department of Neurology, Center for Translational Neuro- and Behavioral Sciences, University Hospital Essen, Essen, Germany
| | - Dagny Holle-Lee
- Department of Neurology, Center for Translational Neuro- and Behavioral Sciences, University Hospital Essen, Essen, Germany
| | - Börge Schmidt
- Institute for Medical Informatics, Biometry and Epidemiology, University Hospital of Essen, Essen, Germany
| | - Yan Li
- Department of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, Essen, Germany
| | - Ulrich Sure
- ¹Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany
| | - Philipp Dammann
- ¹Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany
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Sone JY, Li Y, Hobson N, Romanos SG, Srinath A, Lyne SB, Shkoukani A, Carrión-Penagos J, Stadnik A, Piedad K, Lightle R, Moore T, Li Y, Bi D, Shenkar R, Carroll T, Ji Y, Girard R, Awad IA. Perfusion and permeability as diagnostic biomarkers of cavernous angioma with symptomatic hemorrhage. J Cereb Blood Flow Metab 2021; 41:2944-2956. [PMID: 34039038 PMCID: PMC8756480 DOI: 10.1177/0271678x211020587] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Cavernous angiomas with symptomatic hemorrhage (CASH) have a high risk of rebleeding, and hence an accurate diagnosis is needed. With blood flow and vascular leak as established mechanisms, we analyzed perfusion and permeability derivations of dynamic contrast-enhanced quantitative perfusion (DCEQP) MRI in 745 lesions of 205 consecutive patients. Thirteen respective derivations of lesional perfusion and permeability were compared between lesions that bled within a year prior to imaging (N = 86), versus non-CASH (N = 659) using machine learning and univariate analyses. Based on logistic regression and minimizing the Bayesian information criterion (BIC), the best diagnostic biomarker of CASH within the prior year included brainstem lesion location, sporadic genotype, perfusion skewness, and high-perfusion cluster area (BIC = 414.9, sensitivity = 74%, specificity = 87%). Adding a diagnostic plasma protein biomarker enhanced sensitivity to 100% and specificity to 85%. A slightly modified derivation achieved similar accuracy (BIC = 321.6, sensitivity = 80%, specificity = 82%) in the cohort where CASH occurred 3-12 months prior to imaging after signs of hemorrhage would have disappeared on conventional MRI sequences. Adding the same plasma biomarker enhanced sensitivity to 100% and specificity to 87%. Lesional blood flow on DCEQP may distinguish CASH after hemorrhagic signs on conventional MRI have disappeared and are enhanced in combination with a plasma biomarker.
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Affiliation(s)
- Je Yeong Sone
- Neurovascular Surgery Program, Department of Neurological Surgery, University of Chicago Medicine and Biological Sciences, Chicago, USA
| | - Yan Li
- Neurovascular Surgery Program, Department of Neurological Surgery, University of Chicago Medicine and Biological Sciences, Chicago, USA.,Center for Research Informatics, University of Chicago, Chicago, USA
| | - Nicholas Hobson
- Neurovascular Surgery Program, Department of Neurological Surgery, University of Chicago Medicine and Biological Sciences, Chicago, USA
| | - Sharbel G Romanos
- Neurovascular Surgery Program, Department of Neurological Surgery, University of Chicago Medicine and Biological Sciences, Chicago, USA
| | - Abhinav Srinath
- Neurovascular Surgery Program, Department of Neurological Surgery, University of Chicago Medicine and Biological Sciences, Chicago, USA
| | - Seán B Lyne
- Neurovascular Surgery Program, Department of Neurological Surgery, University of Chicago Medicine and Biological Sciences, Chicago, USA
| | - Abdallah Shkoukani
- Neurovascular Surgery Program, Department of Neurological Surgery, University of Chicago Medicine and Biological Sciences, Chicago, USA
| | - Julián Carrión-Penagos
- Neurovascular Surgery Program, Department of Neurological Surgery, University of Chicago Medicine and Biological Sciences, Chicago, USA
| | - Agnieszka Stadnik
- Neurovascular Surgery Program, Department of Neurological Surgery, University of Chicago Medicine and Biological Sciences, Chicago, USA
| | - Kristina Piedad
- Neurovascular Surgery Program, Department of Neurological Surgery, University of Chicago Medicine and Biological Sciences, Chicago, USA
| | - Rhonda Lightle
- Neurovascular Surgery Program, Department of Neurological Surgery, University of Chicago Medicine and Biological Sciences, Chicago, USA
| | - Thomas Moore
- Neurovascular Surgery Program, Department of Neurological Surgery, University of Chicago Medicine and Biological Sciences, Chicago, USA
| | - Ying Li
- Neurovascular Surgery Program, Department of Neurological Surgery, University of Chicago Medicine and Biological Sciences, Chicago, USA
| | - Dehua Bi
- Neurovascular Surgery Program, Department of Neurological Surgery, University of Chicago Medicine and Biological Sciences, Chicago, USA.,Department of Public Health Sciences, University of Chicago, Chicago, USA
| | - Robert Shenkar
- Neurovascular Surgery Program, Department of Neurological Surgery, University of Chicago Medicine and Biological Sciences, Chicago, USA
| | - Timothy Carroll
- Department of Diagnostic Radiology, University of Chicago Medicine and Biological Sciences, Chicago, USA
| | - Yuan Ji
- Department of Public Health Sciences, University of Chicago, Chicago, USA
| | - Romuald Girard
- Neurovascular Surgery Program, Department of Neurological Surgery, University of Chicago Medicine and Biological Sciences, Chicago, USA
| | - Issam A Awad
- Neurovascular Surgery Program, Department of Neurological Surgery, University of Chicago Medicine and Biological Sciences, Chicago, USA
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104
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Santos AN, Rauschenbach L, Saban D, Chen B, Herten A, Dinger TF, Li Y, Tippelt S, Della Marina A, Dohna-Schwake C, Schmidt B, Jabbarli R, Wrede KH, Sure U, Dammann P. Natural Course of Cerebral Cavernous Malformations in Children: A Five-Year Follow-Up Study. Stroke 2021; 53:817-824. [PMID: 34706565 DOI: 10.1161/strokeaha.121.035338] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND AND PURPOSE The purpose of this study was to investigate the natural course of cerebral cavernous malformations (CCM) in the pediatric population, with special emphasis on the risk of first and recurrent bleeding over a 5-year period. METHODS Our institutional database was screened for patients with CCM treated between 2003 and 2020. Patients ≤18 years of age with complete magnetic resonance imaging data set, clinical baseline characteristics, and ≥1 follow-up examination were included. Surgically treated individuals were censored after CCM removal. We assessed the impact of various parameters on first or recurrent intracerebral hemorrhage (ICH) at diagnosis using univariate and multivariate logistic regression adjusted for age and sex. Kaplan-Meier and Cox regression analyses were performed to determine the cumulative 5-year risk for (re)hemorrhage. RESULTS One hundred twenty-nine pediatric patients with CCM were analyzed. Univariate logistic regression identified brain stem CCM (odds ratio, 3.15 [95% CI, 1.15-8.63], P=0.026) and familial history of CCM (odds ratio, 2.47 [95% CI, 1.04-5.86], P=0.041) as statistically significant predictors of ICH at diagnosis. Multivariate logistic regression confirmed this correlation (odds ratio, 3.62 [95% CI, 1.18-8.99], P=0.022 and odds ratio, 2.53 [95% CI, 1.07-5.98], P=0.035, respectively). Cox regression analysis identified ICH as mode of presentation (hazard ratio, 14.01 [95% CI, 1.80-110.39], P=0.012) as an independent predictor for rehemorrhage during the 5-year follow-up. The cumulative 5-year risk of (re)bleeding was 15.9% (95% CI, 10.2%-23.6%) for the entire cohort, 30.2% (20.2%-42.3%) for pediatric patients with ICH at diagnosis, and 29.5% (95% CI, 13.9%-51.1%) for children with brain stem CCM. CONCLUSIONS Pediatric patients with brain stem CCM and familial history of CCM have a higher risk of ICH as mode of presentation. During untreated 5-year follow-up, they revealed a similar risk of (re)hemorrhage compared to adult patients. The probability of (re)bleeding increases over time, especially in cases with ICH at presentation or brain stem localization.
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Affiliation(s)
- Alejandro N Santos
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Germany. (A.N.S., L.R., D.S., B.C., A.H., T.F.D., R.J., K.H.W., U.S., P.D.)
| | - Laurèl Rauschenbach
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Germany. (A.N.S., L.R., D.S., B.C., A.H., T.F.D., R.J., K.H.W., U.S., P.D.)
| | - Dino Saban
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Germany. (A.N.S., L.R., D.S., B.C., A.H., T.F.D., R.J., K.H.W., U.S., P.D.)
| | - Bixia Chen
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Germany. (A.N.S., L.R., D.S., B.C., A.H., T.F.D., R.J., K.H.W., U.S., P.D.)
| | - Annika Herten
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Germany. (A.N.S., L.R., D.S., B.C., A.H., T.F.D., R.J., K.H.W., U.S., P.D.)
| | - Thiemo Florin Dinger
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Germany. (A.N.S., L.R., D.S., B.C., A.H., T.F.D., R.J., K.H.W., U.S., P.D.)
| | - Yan Li
- Institute of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, Germany. (Y.L.)
| | - Stephan Tippelt
- Department of Pediatrics, University Hospital Essen, Germany. (S.T., A.D.M., C.D.-S.)
| | - Adela Della Marina
- Department of Pediatrics, University Hospital Essen, Germany. (S.T., A.D.M., C.D.-S.)
| | | | - Börge Schmidt
- Institute for Medical Informatics, Biometry and Epidemiology, University Hospital Essen, Germany. (B.S.)
| | - Ramazan Jabbarli
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Germany. (A.N.S., L.R., D.S., B.C., A.H., T.F.D., R.J., K.H.W., U.S., P.D.)
| | - Karsten H Wrede
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Germany. (A.N.S., L.R., D.S., B.C., A.H., T.F.D., R.J., K.H.W., U.S., P.D.)
| | - Ulrich Sure
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Germany. (A.N.S., L.R., D.S., B.C., A.H., T.F.D., R.J., K.H.W., U.S., P.D.)
| | - Philipp Dammann
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Germany. (A.N.S., L.R., D.S., B.C., A.H., T.F.D., R.J., K.H.W., U.S., P.D.)
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105
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Yang Y, Velz J, Neidert MC, Stienen MN, Regli L, Bozinov O. Natural History of Brainstem Cavernous Malformations: On the Variation in Hemorrhage Rates. World Neurosurg 2021; 157:e342-e350. [PMID: 34656794 DOI: 10.1016/j.wneu.2021.10.092] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 10/06/2021] [Accepted: 10/07/2021] [Indexed: 11/19/2022]
Abstract
BACKGROUND Hemorrhage rates of conservatively managed brainstem cavernous malformations (BSCMs) vary widely in the literature. We aimed to elucidate the reason for the variation and to add the results of our experience of BSCMs management over the past decade. METHODS We performed a review of consecutive patients with BSCMs referred to our department in the period 2006-2018. A hemorrhagic event was defined as a radiographically verified intralesional and extralesional hemorrhage. Both retrospective and prospective hemorrhage rates were calculated based on the patient age in years, counted either from birth or from the time of initial presentation until the last contact (or until surgical resection). In addition, we retrieved and reviewed publications with a clear definition of hemorrhagic event and a detailed description of BSCM hemorrhage rate. RESULTS In total, 118 patients with BSCMs were reviewed, and 78 patients (mean age on admission 45.9 years) were included in the final analysis. The retrospective and prospective hemorrhage rates were 1.9% (95% confidence interval 1.6%-2.3%) per year and 11.9% (95% confidence interval 7.5%-17.8%), respectively. The retrospective hemorrhage rate in the literature review ranged from 1.9% to 6.8% per year with a median value of 3.8%, whereas the prospective hemorrhage rate ranged between 4.1% and 21.5%, with a median value of 10.2%. CONCLUSIONS The reported hemorrhage rates are calculated in 2 different ways. In our patient cohort, both the retrospective and prospective hemorrhage rates were in accordance with those in the literature. The long-term hemorrhage rate lies between the prospective and retrospective rate.
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Affiliation(s)
- Yang Yang
- Department of Neurosurgery, Clinical Neuroscience Center, University Hospital of Zurich, University of Zurich, Zurich, Switzerland; Department of Neurosurgery, Kantonsspital St. Gallen, Rorschacher St. Gallen, Switzerland.
| | - Julia Velz
- Department of Neurosurgery, Clinical Neuroscience Center, University Hospital of Zurich, University of Zurich, Zurich, Switzerland
| | - Marian C Neidert
- Department of Neurosurgery, Kantonsspital St. Gallen, Rorschacher St. Gallen, Switzerland
| | - Martin N Stienen
- Department of Neurosurgery, Kantonsspital St. Gallen, Rorschacher St. Gallen, Switzerland
| | - Luca Regli
- Department of Neurosurgery, Clinical Neuroscience Center, University Hospital of Zurich, University of Zurich, Zurich, Switzerland
| | - Oliver Bozinov
- Department of Neurosurgery, Kantonsspital St. Gallen, Rorschacher St. Gallen, Switzerland
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106
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Li Y, Khahera A, Kim J, Mandel M, Han SS, Steinberg GK. Basal ganglia cavernous malformations: case series and systematic review of surgical management and long-term outcomes. J Neurosurg 2021; 135:1113-1121. [PMID: 33385997 DOI: 10.3171/2020.7.jns2098] [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: 03/19/2020] [Accepted: 07/15/2020] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Reports on basal ganglia cavernous malformations (BGCMs) are rare. Here, the authors report on their experience in resecting these malformations to offer insight into this infrequent disease subtype. METHODS The authors retrospectively reviewed a prospectively managed departmental database of all deep-seated cerebral cavernous malformations (CCMs) treated at Stanford between 1987 and 2019 and included for further analysis those with a radiographic diagnosis of BGCM. Moreover, a systematic literature review was undertaken using the PubMed and Web of Science databases. RESULTS The departmental database search yielded 331 patients with deep-seated CCMs, 44 of whom had a BGCM (13.3%). Headache was the most common presenting sign (53.5%), followed by seizure (32.6%) and hemiparesis (27.9%). Lesion location involved the caudate nucleus in 21.4% of cases compared to 78.6% of cases within the lentiform nucleus. Caudate BGCMs were larger on presentation and were more likely to present to the ependymal surface (p < 0.001) with intraventricular hemorrhage and hydrocephalus (p = 0.005 and 0.007, respectively). Dizziness and diplopia were also more common with lesions involving the caudate. Because of their anatomical location, caudate BGCMs were preferentially treated via an interhemispheric approach and were less likely to be associated with worsening perioperative deficits than lentiform BGCMs (p = 0.006 and 0.045, respectively). Ten patients (25.6%) were clinically worse in the immediate postoperative period, 4 (10.2%) of whom continued to suffer permanent morbidity at the last follow-up. A long-term good outcome (modified Rankin Scale [mRS] score 0-1) was attained in 74.4% of cases compared to the 69.2% of patients who had presented with an mRS score 0-1. Relative to their presenting mRS score, 89.8% of patients had an improved or unchanged status at the last follow-up. The median postoperative follow-up was 11 months (range 1-252 months). Patient outcomes after resection did not differ among surgical approaches; however, patients presenting with hemiparesis and lesions involving the globus pallidus or posterior limb of the internal capsule were more likely to suffer neurological deficits during the immediate perioperative period. Patients who had undergone awake surgeries were more likely to suffer neurological decline at the early as well as the late follow-up. When adjusting for awake craniotomy as a potential confounder of lesion location, a BGCM involving the posterior limb was predictive of developing early postoperative deficits, but this finding did not persist at the long-term follow-up. CONCLUSIONS Surgery is a safe and effective treatment modality for managing BGCMs, with an estimated long-term permanent morbidity rate of around 10%.
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Affiliation(s)
- Yiping Li
- 1Department of Neurosurgery and Stanford Stroke Center, Stanford University School of Medicine and Stanford Health Center, Stanford
| | | | - Jason Kim
- 3University of Wisconsin School of Medicine, Madison, Wisconsin; and
| | - Mauricio Mandel
- 1Department of Neurosurgery and Stanford Stroke Center, Stanford University School of Medicine and Stanford Health Center, Stanford
| | - Summer S Han
- 1Department of Neurosurgery and Stanford Stroke Center, Stanford University School of Medicine and Stanford Health Center, Stanford
- 4Department of Medicine, Stanford Center for Biomedical Informatics Research, Stanford University School of Medicine, Stanford, California
| | - Gary K Steinberg
- 1Department of Neurosurgery and Stanford Stroke Center, Stanford University School of Medicine and Stanford Health Center, Stanford
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107
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Lanfranconi S, Piergallini L, Ronchi D, Valcamonica G, Conte G, Marazzi E, Manenti G, Bertani GA, Locatelli M, Triulzi F, Bresolin N, Scola E, Comi GP. Clinical, neuroradiological and genetic findings in a cohort of patients with multiple Cerebral Cavernous Malformations. Metab Brain Dis 2021; 36:1871-1878. [PMID: 34357553 DOI: 10.1007/s11011-021-00809-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Accepted: 07/26/2021] [Indexed: 10/20/2022]
Abstract
Cerebral cavernous malformations (CCM) consist of clusters of irregular dilated capillaries and represent the second most common type of vascular malformation affecting the central nervous system. CCM might be asymptomatic or cause cerebral hemorrhage, seizures, recurrent headaches and focal neurologic deficits. Causative mutations underlining CCM have been reported in three genes: KRIT1/CCM1, MGC4607/CCM2 and PDCD10/CCM3. Therapeutic avenues are limited to surgery. Here we present clinical, neuroradiological and molecular findings in a cohort of familial and sporadic CCM patients. Thirty subjects underwent full clinical and radiological assessment. Molecular analysis was performed by direct sequencing and MLPA analysis. Twenty-eight of 30 subjects (93%) experienced one or more typical CCM disturbances with cerebral/spinal hemorrhage being the most common (43%) presenting symptom. A molecular diagnosis was achieved in 87% of cases, with three novel mutations identified. KRIT1/CCM1 patients displayed higher risk of de novo CCMs appearance and bleedings. Magnetic Resonance Imaging (MRI) showed that infratentorial region was more frequently affected in mutated subjects while brainstem was often spared in patients with negative genetic testing.
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Affiliation(s)
- Silvia Lanfranconi
- Neurology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via Francesco Sforza 35, 20122, Milan, Italy.
| | - Lorenzo Piergallini
- Neuroradiology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Dario Ronchi
- Neurology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via Francesco Sforza 35, 20122, Milan, Italy
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Gloria Valcamonica
- Neurology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via Francesco Sforza 35, 20122, Milan, Italy
| | - Giorgio Conte
- Neuroradiology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Elena Marazzi
- Neurology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via Francesco Sforza 35, 20122, Milan, Italy
| | - Giulia Manenti
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Giulio Andrea Bertani
- Neurosurgery Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Marco Locatelli
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
- Neurosurgery Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Fabio Triulzi
- Neuroradiology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Nereo Bresolin
- Neurology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Via Francesco Sforza 35, 20122, Milan, Italy
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
| | - Elisa Scola
- Neuroradiology Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Giacomo Pietro Comi
- Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy
- Neuromuscular and Rare Diseases Unit, Department of Neuroscience, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy
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108
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Rauschenbach L, Santos AN, Dinger TF, Herten A, Darkwah Oppong M, Schmidt B, Chihi M, Haubold J, Jabbarli R, Wrede KH, Sure U, Dammann P. Predictive Value of Intraoperative Neuromonitoring in Brainstem Cavernous Malformation Surgery. World Neurosurg 2021; 156:e359-e373. [PMID: 34560298 DOI: 10.1016/j.wneu.2021.09.064] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Revised: 09/13/2021] [Accepted: 09/14/2021] [Indexed: 10/20/2022]
Abstract
OBJECTIVE To evaluate the predictive value of intraoperative neuromonitoring (IONM) in brainstem cavernous malformation (BSCM) surgery. METHODS Surgically treated patients with BSCM were included. All patients received IONM consisting of motor-evoked potentials (MEPs) and somatosensory-evoked potentials (SSEPs). Neurologic examination was conducted preoperatively and at discharge and follow-up >3 months after BSCM removal. Demographic, radiographic, and clinical features were assessed. Study end points were new motor or somatosensory deficits and functional disability. RESULTS A total of 62 patients were included. MEP decrease was associated with new motor deficits at discharge (P = 0.022), and SSEP decrease was associated with new somatosensory deficits at discharge (P < 0.001) and follow-up (P < 0.001). Sensitivity and specificity values for MEPs (discharge: 31% and 93%; follow-up: 33% and 91%) and SSEPs (discharge: 82% and 80%; follow-up: 85% and 79%) were calculated, respectively. Receiver operating characteristic analyses with area under the curve (AUC) metrics revealed acceptable performance of MEPs (AUC, 0.75; P = 0.022) and SSEPs (AUC, 0.72; P = 0.004) in predicting early deficits. Intraoperative decrease of MEPs (P = 0.047) and SSEPs (P = 0.017) was associated with early functional disability. Surgery-related subdural air accumulation impaired IONM reliability in predicting early (P = 0.048) and long-term (P = 0.013) deficits. CONCLUSIONS Established IONM warning criteria may be valid for BSCM removal. However, surgical approaches in the sitting position significantly limit the predictive value of IONM, to some extent because of intraoperative pneumocephalus.
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Affiliation(s)
- Laurèl Rauschenbach
- 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
| | - Thiemo F Dinger
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany
| | - Annika Herten
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany
| | - Marvi Darkwah Oppong
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany
| | - Börge Schmidt
- Institute for Medical Informatics, Biometry and Epidemiology, University Hospital Essen, Essen, Germany
| | - Mehdi Chihi
- Department of Neurosurgery and Spine Surgery, University Hospital Essen, Essen, Germany
| | - Johannes Haubold
- Institute for Diagnostic and Interventional Radiology, University Hospital Essen, Essen, Germany
| | - Ramazan Jabbarli
- 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
| | - 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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Kim H, Flemming KD, Nelson JA, Lui A, Majersik JJ, Cruz MD, Zabramski J, Trevizo O, Lanzino G, Zafar A, Torbey M, Mabray MC, Robinson M, Narvid J, Lupo J, Thompson RE, Hanley DF, McBee N, Treine K, Ostapkovich N, Stadnik A, Piedad K, Hobson N, Carroll T, Shkoukani A, Carrión-Penagos J, Mendoza-Puccini C, Koenig JI, Awad I. Baseline Characteristics of Patients With Cavernous Angiomas With Symptomatic Hemorrhage in Multisite Trial Readiness Project. Stroke 2021; 52:3829-3838. [PMID: 34525838 DOI: 10.1161/strokeaha.120.033487] [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: 11/16/2022]
Abstract
BACKGROUND AND PURPOSE Brain cavernous angiomas with symptomatic hemorrhage (CASH) have a high risk of neurological disability from recurrent bleeding. Systematic assessment of baseline features and multisite validation of novel magnetic resonance imaging biomarkers are needed to optimize clinical trial design aimed at novel pharmacotherapies in CASH. METHODS This prospective, multicenter, observational cohort study included adults with unresected, adjudicated brain CASH within the prior year. Six US sites screened and enrolled patients starting August 2018. Baseline demographics, clinical and imaging features, functional status (modified Rankin Scale and National Institutes of Health Stroke Scale), and patient quality of life outcomes (Patient-Reported Outcomes Measurement Information System-29 and EuroQol-5D) were summarized using descriptive statistics. Patient-Reported Outcomes Measurement Information System-29 scores were standardized against a reference population (mean 50, SD 10), and one-sample t test was performed for each domain. A subgroup underwent harmonized magnetic resonance imaging assessment of lesional iron content with quantitative susceptibility mapping and vascular permeability with dynamic contrast-enhanced quantitative perfusion. RESULTS As of May 2020, 849 patients were screened and 110 CASH cases enrolled (13% prevalence of trial eligible cases). The average age at consent was 46±16 years, 53% were female, 41% were familial, and 43% were brainstem lesions. At enrollment, ≥90% of the cohort had independent functional outcome (modified Rankin Scale score ≤2 and National Institutes of Health Stroke Scale score <5). However, perceived health problems affecting quality of life were reported in >30% of patients (EuroQol-5D). Patients had significantly worse Patient-Reported Outcomes Measurement Information System-29 scores for anxiety (P=0.007), but better depression (P=0.002) and social satisfaction scores (P=0.012) compared with the general reference population. Mean baseline quantitative susceptibility mapping and permeability of CASH lesion were 0.45±0.17 ppm and 0.39±0.31 mL/100 g per minute, respectively, which were similar to historical CASH cases and consistent across sites. CONCLUSIONS These baseline features will aid investigators in patient stratification and determining the most appropriate outcome measures for clinical trials of emerging pharmacotherapies in CASH.
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Affiliation(s)
- Helen Kim
- Center for Cerebrovascular Research, Department of Anesthesia and Perioperative Care, University of California, San Francisco. (H.K., J.A.N., A.L.).,Department of Epidemiology and Biostatistics, University of California, San Francisco. (H.K.)
| | | | - Jeffrey A Nelson
- Center for Cerebrovascular Research, Department of Anesthesia and Perioperative Care, University of California, San Francisco. (H.K., J.A.N., A.L.)
| | - Avery Lui
- Center for Cerebrovascular Research, Department of Anesthesia and Perioperative Care, University of California, San Francisco. (H.K., J.A.N., A.L.)
| | - Jennifer J Majersik
- Department of Neurology, University of Utah, Salt Lake City (J.J.M., M.D.C.)
| | - Michael Dela Cruz
- Department of Neurology, University of Utah, Salt Lake City (J.J.M., M.D.C.)
| | - Joseph Zabramski
- Department of Neurosurgery, Barrow Neurological Institute, Phoenix, AZ (J.Z., O.T.)
| | - Odilette Trevizo
- Department of Neurosurgery, Barrow Neurological Institute, Phoenix, AZ (J.Z., O.T.)
| | | | - Atif Zafar
- Department of Neurology, University of Toronto, Canada (A.Z.)
| | - Michel Torbey
- Department of Neurology, University of New Mexico, Albuquerque. (M.T.)
| | - Marc C Mabray
- Department of Radiology, University of New Mexico, Albuquerque. (M.C.M.)
| | - Myranda Robinson
- Department of Neurosurgery, University of New Mexico, Albuquerque. (M.R.)
| | - Jared Narvid
- Department of Radiology and Biomedical Imaging, University of California, San Francisco. (J.N., J.L.)
| | - Janine Lupo
- Department of Radiology and Biomedical Imaging, University of California, San Francisco. (J.N., J.L.)
| | - Richard E Thompson
- Department of Biostatistics, Johns Hopkins University, Baltimore, MD. (R.E.T.)
| | - Daniel F Hanley
- Brain Injury Outcomes, Department of Neurology, Johns Hopkins University, Baltimore, MD. (D.F.H., N.M., K.T., N.O.)
| | - Nichol McBee
- Brain Injury Outcomes, Department of Neurology, Johns Hopkins University, Baltimore, MD. (D.F.H., N.M., K.T., N.O.)
| | - Kevin Treine
- Brain Injury Outcomes, Department of Neurology, Johns Hopkins University, Baltimore, MD. (D.F.H., N.M., K.T., N.O.)
| | - Noeleen Ostapkovich
- Brain Injury Outcomes, Department of Neurology, Johns Hopkins University, Baltimore, MD. (D.F.H., N.M., K.T., N.O.)
| | - Agnieszka Stadnik
- Department of Neurosurgery, University of Chicago, IL. (A. Stadnik, K.P., N.H., A. Shkoukani, J.C.-P., I.A.)
| | - Kristina Piedad
- Department of Neurosurgery, University of Chicago, IL. (A. Stadnik, K.P., N.H., A. Shkoukani, J.C.-P., I.A.)
| | - Nicholas Hobson
- Department of Neurosurgery, University of Chicago, IL. (A. Stadnik, K.P., N.H., A. Shkoukani, J.C.-P., I.A.)
| | - Timothy Carroll
- Department of Diagnostic Radiology, University of Chicago, IL. (T.C.)
| | - Abdallah Shkoukani
- Department of Neurosurgery, University of Chicago, IL. (A. Stadnik, K.P., N.H., A. Shkoukani, J.C.-P., I.A.)
| | - Julián Carrión-Penagos
- Department of Neurosurgery, University of Chicago, IL. (A. Stadnik, K.P., N.H., A. Shkoukani, J.C.-P., I.A.)
| | - Carolina Mendoza-Puccini
- Division of Clinical Research, National Institute of Neurological Disorders and Stroke, Bethesda, MD. (C.M.-P.)
| | - James I Koenig
- Division of Neuroscience, National Institute of Neurological Disorders and Stroke, Bethesda, MD. (J.I.K.)
| | - Issam Awad
- Department of Neurosurgery, University of Chicago, IL. (A. Stadnik, K.P., N.H., A. Shkoukani, J.C.-P., I.A.)
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Skowronek D, Pilz RA, Schwefel K, Much CD, Felbor U, Rath M. Bringing CCM into a dish: cell culture models for cerebral cavernous malformations. MED GENET-BERLIN 2021; 33:251-259. [PMID: 38835694 PMCID: PMC11006332 DOI: 10.1515/medgen-2021-2091] [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: 06/23/2021] [Accepted: 10/21/2021] [Indexed: 06/06/2024]
Abstract
Cerebral cavernous malformations (CCMs) are vascular lesions that can cause severe neurological complications due to intracranial hemorrhage. Although the CCM disease genes, CCM1, CCM2, and CCM3, have been known for more than 15 years now, our understanding of CCM pathogenesis is still incomplete. CCM research currently focuses on three main disease mechanisms: (1) clonal expansion of endothelial cells with biallelic inactivation of CCM1, CCM2, or CCM3, (2) recruitment of cells with preserved CCM protein expression into the growing lesion, and (3) disruption of endothelial cell-cell junctions in CCMs. We here describe novel CRISPR/Cas9-based in vitro models of CCM and discuss their strengths and limitations in the context of high-throughput drug screening and repurposing approaches.
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Affiliation(s)
- Dariush Skowronek
- Department of Human Genetics, University Medicine Greifswald, Greifswald, Germany
- Interfaculty Institute of Genetics and Functional Genomics, University of Greifswald, Greifswald, Germany
| | - Robin A Pilz
- Department of Human Genetics, University Medicine Greifswald, Greifswald, Germany
- Interfaculty Institute of Genetics and Functional Genomics, University of Greifswald, Greifswald, Germany
| | - Konrad Schwefel
- Department of Human Genetics, University Medicine Greifswald, Greifswald, Germany
- Interfaculty Institute of Genetics and Functional Genomics, University of Greifswald, Greifswald, Germany
| | - Christiane D Much
- Department of Human Genetics, University Medicine Greifswald, Greifswald, Germany
- Interfaculty Institute of Genetics and Functional Genomics, University of Greifswald, Greifswald, Germany
| | - Ute Felbor
- Department of Human Genetics, University Medicine Greifswald, Greifswald, Germany
- Interfaculty Institute of Genetics and Functional Genomics, University of Greifswald, Greifswald, Germany
| | - Matthias Rath
- Department of Human Genetics, University Medicine Greifswald, Fleischmannstraße 43, D-17475 Greifswald, Germany
- Interfaculty Institute of Genetics and Functional Genomics, University of Greifswald, Greifswald, Germany
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111
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Maiuri F, Mariniello G, Corvino S, Somma T, Guadagno E, Teodonno G, Del Basso De Caro M, Cappabianca P. Cavernous Malformations to Be Investigated for Familiarity: The Role of Ki67 MIB1. World Neurosurg 2021; 155:e75-e82. [PMID: 34389524 DOI: 10.1016/j.wneu.2021.08.008] [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: 05/19/2021] [Revised: 07/31/2021] [Accepted: 08/02/2021] [Indexed: 11/20/2022]
Abstract
BACKGROUND Familial forms of cavernous malformations (CMs) often occur as multiple lesions. Nevertheless, the presence of a single CM does not exclude the familiarity. The aim of this study is to establish which patients who undergo surgery for a single cerebral cavernous malformation (CCM), with no family history at initial diagnosis, should be investigated for familiarity through genetic testing and counseling. METHODS Eight families with 2 or more members affected by CCM have been studied. A control group of sporadic cases operated on, with no family history and followed up 10 years or more, was also included. Analyzed factors were patient age and sex, location, number and size of the lesions, associated developmental venous anomaly, presence of epileptic seizures, symptomatic hemorrhage, focal neurological deficits, and documented growth of the malformation and Ki67 MIB1 proliferation index. RESULTS The familial group of CCMs showed higher incidence of pediatric patients (P = 0.01), more frequent occurrence of multiple lesions (P = 0.0004), higher rate of large CCMs, and symptomatic hemorrhage; besides, all 3 cases with documented growth belonged to the familial group (14%). The expression of Ki67 MIB1 was positive in 79% of the familial cases versus 0% in the sporadic ones (P < 0.00001). CONCLUSIONS Patients with CCM and no known family history at the time of the initial diagnosis who present specific features should be studied by genetic screening. The Ki67 MIB1 is a useful biomarker in favor of familial occurrence and may be studied in all patients with CMs to define the indication to the genetic tests.
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Affiliation(s)
- Francesco Maiuri
- Department of Neurosciences and Reproductive and Odontostomatological Sciences, Neurosurgical Clinic, Naples, Italy.
| | - Giuseppe Mariniello
- Department of Neurosciences and Reproductive and Odontostomatological Sciences, Neurosurgical Clinic, Naples, Italy
| | - Sergio Corvino
- Department of Neurosciences and Reproductive and Odontostomatological Sciences, Neurosurgical Clinic, Naples, Italy
| | - Teresa Somma
- Department of Neurosciences and Reproductive and Odontostomatological Sciences, Neurosurgical Clinic, Naples, Italy
| | - Elia Guadagno
- Department of Advanced Biomedical Sciences, Section of Pathology, University "Federico II" of Naples, Naples, Italy
| | - Giuseppe Teodonno
- Department of Neurosciences and Reproductive and Odontostomatological Sciences, Neurosurgical Clinic, Naples, Italy
| | - Marialaura Del Basso De Caro
- Department of Advanced Biomedical Sciences, Section of Pathology, University "Federico II" of Naples, Naples, Italy
| | - Paolo Cappabianca
- Department of Neurosciences and Reproductive and Odontostomatological Sciences, Neurosurgical Clinic, Naples, Italy
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112
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Dammann P, Herten A, Santos AN, Rauschenbach L, Chen B, Darkwah Oppong M, Schmidt B, Forsting M, Kleinschnitz C, Sure U. Multimodal outcome assessment after surgery for brainstem cavernous malformations. J Neurosurg 2021; 135:401-409. [PMID: 33065532 DOI: 10.3171/2020.6.jns201823] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Accepted: 10/16/2020] [Indexed: 11/06/2022]
Abstract
OBJECTIVE The object of this study was to assess outcome after surgery for brainstem cavernous malformations (BSCMs) using functional, health-related quality of life (HRQOL), and psychological surveys to analyze the interrelation of these measurements, and to compare HRQOL and anxiety and depression scores with those in a healthy population. METHODS The authors performed a cross-sectional outcome study of all patients surgically treated for BSCM in their department between January 1, 2003, and December 31, 2019. They assessed functional outcome via the modified Rankin Scale (mRS), health-related quality of life (HRQOL) via the SF-36 and 9-item Life Satisfaction Questionnaire (LISAT-9), cranial nerve and brainstem function using a questionnaire, symptom-based psychological outcome via the Hospital Anxiety and Depression Scale (HADS), and timepoint of a return to previous employment. They analyzed the correlation between absolute (mRS score ≤ 2) and relative (postoperative deterioration in initial mRS score) outcome endpoints and the interrelation of the outcome measures and performed a comparison of HRQOL and HADS scores with findings in a healthy population. RESULTS Seventy-four patients were eligible for inclusion in the study. HRQOL was impaired after surgery for BSCM compared to that in a healthy population. This impairment was substantial in patients with an unfavorable functional outcome (mRS > 2) but was also present in those with a favorable outcome (mRS ≤ 2) in selected domains. Psychological impairment was negligible in patients with a favorable outcome and grave in those with an unfavorable outcome. LISAT-9 results revealed that brainstem and cranial nerve symptoms reduce satisfaction mainly in self-care abilities for both unfavorable and favorable outcome patients. Among the brainstem and cranial nerve symptoms, balance impairment showed the most significant impact on HRQOL. Absolute outcome endpoints were superior to relative outcome endpoints in reflecting impairment in HRQOL after surgery. CONCLUSIONS The study data can improve patient counseling and decision-making in BSCM treatment and may function as a benchmark. The authors report outcomes after BSCM surgery in high detail, emphasizing the specific impact of cranial nerve and brainstem symptoms on HRQOL. When reporting BSCM surgery outcome, absolute outcome endpoints should be applied.
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Affiliation(s)
| | - Annika Herten
- 1Department of Neurosurgery, University Hospital Essen
| | | | | | - Bixia Chen
- 1Department of Neurosurgery, University Hospital Essen
| | | | - Börge Schmidt
- 2Institute for Medical Informatics, Biometry and Epidemiology, University Hospital Essen
| | - Michael Forsting
- 3Institute of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen; and
| | - Christoph Kleinschnitz
- 4Department of Neurology, University Hospital Essen, University of Duisburg-Essen, Essen, Germany
| | - Ulrich Sure
- 1Department of Neurosurgery, University Hospital Essen
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113
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Santos AN, Rauschenbach L, Darkwah Oppong M, Chen B, Herten A, Forsting M, Sure U, Dammann P. Assessment and validation of proposed classification tools for brainstem cavernous malformations. J Neurosurg 2021; 135:410-416. [PMID: 33065538 DOI: 10.3171/2020.6.jns201585] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 06/16/2020] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Treatment indications for patients with brainstem cavernous malformations (BSCMs) remain difficult and controversial. Some authors have tried to establish classification tools to identify eligible candidates for surgery. Authors of this study aimed to validate the performance and replicability of two proposed BSCM grading systems, the Lawton-Garcia (LG) and the Dammann-Sure (DS) systems. METHODS For this cross-sectional study, a database was screened for patients with BSCM treated surgically between 2003 and 2019 in the authors' department. Complete clinical records, preoperative contrast-enhanced MRI, and a postoperative follow-up ≥ 6 months were mandatory for study inclusion. The modified Rankin Scale (mRS) score was determined to quantify neurological function and outcome. Three observers independently determined the LG and the DS score for each patient. RESULTS A total of 67 patients met selection criteria. Univariate and multivariate analyses identified multiple bleedings (p = 0.02, OR 5.59), lesion diameter (> 20 mm, p = 0.007, OR 5.43), and patient age (> 50 years, p = 0.019, OR 4.26) as predictors of an unfavorable postoperative functional outcome. Both the LG (AUC = 0.72, p = 0.01) and the DS (AUC = 0.78, p < 0.01) scores were robust tools to estimate patient outcome. Subgroup analyses confirmed this observation for both grading systems (LG: p = 0.005, OR 6; DS: p = 0.026, OR 4.5), but the combined use of the two scales enhanced the test performance significantly (p = 0.001, OR 22.5). CONCLUSIONS Currently available classification systems are appropriate tools to estimate the neurological outcome after BSCM surgery. Future studies are needed to design an advanced scoring system, incorporating items from the LG and the DS score systems.
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Affiliation(s)
- Alejandro N Santos
- 1Department of Neurosurgery and Spine Surgery, University Hospital Essen; and
| | - Laurèl Rauschenbach
- 1Department of Neurosurgery and Spine Surgery, University Hospital Essen; and
| | | | - Bixia Chen
- 1Department of Neurosurgery and Spine Surgery, University Hospital Essen; and
| | - Annika Herten
- 1Department of Neurosurgery and Spine Surgery, University Hospital Essen; and
| | - Michael Forsting
- 2Institute of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, Essen, Germany
| | - Ulrich Sure
- 1Department of Neurosurgery and Spine Surgery, University Hospital Essen; and
| | - Philipp Dammann
- 1Department of Neurosurgery and Spine Surgery, University Hospital Essen; and
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Malcolm JG, Douglas JM, Greven A, Rich C, Dawoud RA, Hu R, Reisner A, Barrow DL, Gross RE, Willie JT. Feasibility and Morbidity of Magnetic Resonance Imaging-Guided Stereotactic Laser Ablation of Deep Cerebral Cavernous Malformations: A Report of 4 Cases. Neurosurgery 2021; 89:635-644. [PMID: 34270738 DOI: 10.1093/neuros/nyab241] [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] [Received: 03/07/2020] [Accepted: 05/08/2021] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Magnetic resonance imaging (MRI)-guided laser interstitial thermal therapy (MRgLITT) has been used successfully to treat epileptogenic cortical cerebral cavernous malformations (CCM). It is unclear whether MRgLITT would be as feasible or safe for deep CCMs. OBJECTIVE To describe our experience with MRgLITT for symptomatic deep CCMs. METHODS Patients' records were reviewed retrospectively. MRgLITT was carried out using a commercially available system in an interventional MRI suite with efforts to protect adjacent brain structures. Immediate postoperative imaging was used to judge ablation adequacy. Delayed postoperative MRI was used to measure lesion volume changes during follow-up. RESULTS Four patients with CCM in the thalamus, putamen, midbrain, or subthalamus presented with persistent and disabling neurological symptoms. A total of 2 patients presented with disabling headaches and sensory disturbances and 2 with recurrent symptomatic hemorrhages, of which 1 had familial CCM. Patients were considered by vascular neurosurgeons to be poor candidates for open surgery or had refused it. Multiple trajectories were used in most cases. Adverse events included device malfunction with leakage of saline causing transient mass effect in one patient, and asymptomatic tract hemorrhage in another. One patient suffered an expected mild but persistent exacerbation of baseline deficits. All patients showed improvement from a previously aggressive clinical course with lesion volume decreased by 20% to 73% in follow-up. CONCLUSION MRgLITT is feasible in the treatment of symptomatic deep CCM but may carry a high risk of complications without the benefit of definitive resection. We recommend cautious patient selection, low laser power settings, and conservative temperature monitoring in surrounding brain parenchyma.
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Affiliation(s)
- James G Malcolm
- Department of Neurosurgery, Emory University School of Medicine, Atlanta, Georgia, USA
| | | | - Alex Greven
- Emory University School of Medicine, Atlanta, Georgia, USA
| | | | - Reem A Dawoud
- Emory University School of Medicine, Atlanta, Georgia, USA
| | - Ranliang Hu
- Department of Radiology, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Andrew Reisner
- Department of Neurosurgery, Emory University School of Medicine, Atlanta, Georgia, USA.,Department of Neurosurgery, Children's Healthcare of Atlanta, Atlanta, Georgia, USA
| | - Daniel L Barrow
- Department of Neurosurgery, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Robert E Gross
- Department of Neurosurgery, Emory University School of Medicine, Atlanta, Georgia, USA
| | - Jon T Willie
- Department of Neurosurgery, Emory University School of Medicine, Atlanta, Georgia, USA
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Much CD, Sendtner BS, Schwefel K, Freund E, Bekeschus S, Otto O, Pagenstecher A, Felbor U, Rath M, Spiegler S. Inactivation of Cerebral Cavernous Malformation Genes Results in Accumulation of von Willebrand Factor and Redistribution of Weibel-Palade Bodies in Endothelial Cells. Front Mol Biosci 2021; 8:622547. [PMID: 34307446 PMCID: PMC8298835 DOI: 10.3389/fmolb.2021.622547] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 06/21/2021] [Indexed: 01/06/2023] Open
Abstract
Cerebral cavernous malformations are slow-flow thrombi-containing vessels induced by two-step inactivation of the CCM1, CCM2 or CCM3 gene within endothelial cells. They predispose to intracerebral bleedings and focal neurological deficits. Our understanding of the cellular and molecular mechanisms that trigger endothelial dysfunction in cavernous malformations is still incomplete. To model both, hereditary and sporadic CCM disease, blood outgrowth endothelial cells (BOECs) with a heterozygous CCM1 germline mutation and immortalized wild-type human umbilical vein endothelial cells were subjected to CRISPR/Cas9-mediated CCM1 gene disruption. CCM1 -/- BOECs demonstrated alterations in cell morphology, actin cytoskeleton dynamics, tube formation, and expression of the transcription factors KLF2 and KLF4. Furthermore, high VWF immunoreactivity was observed in CCM1 -/- BOECs, in immortalized umbilical vein endothelial cells upon CRISPR/Cas9-induced inactivation of either CCM1, CCM2 or CCM3 as well as in CCM tissue samples of familial cases. Observer-independent high-content imaging revealed a striking reduction of perinuclear Weibel-Palade bodies in unstimulated CCM1 -/- BOECs which was observed in CCM1 +/- BOECs only after stimulation with PMA or histamine. Our results demonstrate that CRISPR/Cas9 genome editing is a powerful tool to model different aspects of CCM disease in vitro and that CCM1 inactivation induces high-level expression of VWF and redistribution of Weibel-Palade bodies within endothelial cells.
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Affiliation(s)
- Christiane D. Much
- Department of Human Genetics, Interfaculty Institute of Genetics and Functional Genomics, University Medicine Greifswald, Greifswald, Germany
| | - Barbara S. Sendtner
- Department of Human Genetics, Interfaculty Institute of Genetics and Functional Genomics, University Medicine Greifswald, Greifswald, Germany
| | - Konrad Schwefel
- Department of Human Genetics, Interfaculty Institute of Genetics and Functional Genomics, University Medicine Greifswald, Greifswald, Germany
| | - Eric Freund
- Centre for Innovation Competence (ZIK) plasmatis, Leibniz Institute for Plasma Science and Technology (INP), Greifswald, Germany
| | - Sander Bekeschus
- Centre for Innovation Competence (ZIK) plasmatis, Leibniz Institute for Plasma Science and Technology (INP), Greifswald, Germany
| | - Oliver Otto
- Centre for Innovation Competence (ZIK) ‐ Humoral Immune Reactions in Cardiovascular Diseases, University of Greifswald, Greifswald, Germany
| | - Axel Pagenstecher
- Department of Neuropathology, Center for Mind, Brain and Behavior (CMBB), University Hospital Giessen and MarburgMarburg, Germany
| | - Ute Felbor
- Department of Human Genetics, Interfaculty Institute of Genetics and Functional Genomics, University Medicine Greifswald, Greifswald, Germany
| | - Matthias Rath
- Department of Human Genetics, Interfaculty Institute of Genetics and Functional Genomics, University Medicine Greifswald, Greifswald, Germany
| | - Stefanie Spiegler
- Department of Human Genetics, Interfaculty Institute of Genetics and Functional Genomics, University Medicine Greifswald, Greifswald, Germany
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Harris L, Poorthuis MHF, Grover P, Kitchen N, Al-Shahi Salman R. Surgery for cerebral cavernous malformations: a systematic review and meta-analysis. Neurosurg Rev 2021; 45:231-241. [PMID: 34191202 DOI: 10.1007/s10143-021-01591-5] [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: 11/19/2020] [Revised: 03/21/2021] [Accepted: 06/17/2021] [Indexed: 10/21/2022]
Abstract
BACKGROUND We sought to quantify the risks of neurosurgical excision of cerebral cavernous malformations (CCMs) in a systematic review of cohort studies. METHODS We updated our previous systematic review by searching OVID Medline, OVID EMBASE, and the Cochrane Library from 1 January 2013 to 30 April 2019. The primary outcome was a composite of death attributed to CCM or surgery, non-fatal symptomatic intracerebral haemorrhage (ICH), or new or worsened persistent non-haemorrhagic focal neurological deficit (FND). RESULTS We included 70 cohorts, 67 reporting surgery alone, and three compared surgery to conservative management. A total of 5,089 patients (median age 36 years, 52% female) underwent surgery (total follow-up 19,404 patient-years). The annual rate of the composite outcome was 4.2% (95% CI 2.9 to 5.7; 46 cohorts; I2 = 93%), which was higher in cohorts reporting exclusively brainstem CCM (6.0%, 95% CI 4.1-8.3; 25 cohorts, I2 = 92%) versus predominantly supratentorial CCM (2.4%, 95% CI 1.3-3.8, 21 cohorts, I2 = 86%, phet = 0.001). The annual rate of the composite outcome was higher in cohorts with > 95% presenting with ICH (6.1%, 95% CI 4.2-8.4; 23 cohorts, I2 = 93%) versus others (2.3%, 95% CI 1.2-3.7; 23 cohorts, I2 = 83%, phet = 0.001). The incidence of the composite outcome did not change over time in cohorts of exclusively brainstem CCM (p = 0.7) or predominantly supratentorial CCM (p = 0.5). CONCLUSIONS The risk of death, ICH, or FND after CCM excision is ~ 4%. This risk is higher for brainstem CCM and CCM that have caused ICH but has not changed over time. TRIAL REGISTRATION This systematic review was registered (PROSPERO CRD42019131246).
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Affiliation(s)
- Lauren Harris
- Department of Neurosurgery, National Hospital for Neurology and Neurosurgery, Queen Square, London, UK.
| | - Michiel H F Poorthuis
- Department of Neurology and Neurosurgery, Brain Center Rudolf Magnus, University Medical Center Utrecht, Utrecht, Netherlands
| | - Patrick Grover
- Department of Neurosurgery, National Hospital for Neurology and Neurosurgery, Queen Square, London, UK
| | - Neil Kitchen
- Department of Neurosurgery, National Hospital for Neurology and Neurosurgery, Queen Square, London, UK
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Liew J, Feghali J, Huang J. Intracerebral and subarachnoid hemorrhage in pregnancy. HANDBOOK OF CLINICAL NEUROLOGY 2021; 172:33-50. [PMID: 32768093 DOI: 10.1016/b978-0-444-64240-0.00002-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Maternal stroke occurs in around 34 out of every 100,000 deliveries and is responsible for around 5%-12% of all maternal deaths. It is most commonly hemorrhagic, and women are at highest risk for developing pregnancy-related hemorrhage during the early postpartum period through 6 weeks following the delivery. The most common causes of hemorrhagic stroke in pregnant patients are arteriovenous malformations and cerebral aneurysms. Management is similar to that for acute hemorrhagic stroke in the nonpregnant population with standard use of computed tomography and judicious utilization of intracranial vessel imaging and contrast. The optimal delivery method is evaluated on a case-by-case basis, and cesarean delivery is not always required. As most current studies are limited by retrospective design, relatively small sample sizes, and heterogeneous study term definitions, strong and comprehensive evidence-based guidelines on the management of acute hemorrhagic stroke in pregnant patients are still lacking. In the future, multicenter registries and prospective studies with uniform definitions will help improve management strategies in this complex patient population.
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Affiliation(s)
- Jason Liew
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - James Feghali
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Judy Huang
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD, United States.
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Snellings DA, Hong CC, Ren AA, Lopez-Ramirez MA, Girard R, Srinath A, Marchuk DA, Ginsberg MH, Awad IA, Kahn ML. Cerebral Cavernous Malformation: From Mechanism to Therapy. Circ Res 2021; 129:195-215. [PMID: 34166073 PMCID: PMC8922476 DOI: 10.1161/circresaha.121.318174] [Citation(s) in RCA: 77] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Cerebral cavernous malformations are acquired vascular anomalies that constitute a common cause of central nervous system hemorrhage and stroke. The past 2 decades have seen a remarkable increase in our understanding of the pathogenesis of this vascular disease. This new knowledge spans genetic causes of sporadic and familial forms of the disease, molecular signaling changes in vascular endothelial cells that underlie the disease, unexpectedly strong environmental effects on disease pathogenesis, and drivers of disease end points such as hemorrhage. These novel insights are the integrated product of human clinical studies, human genetic studies, studies in mouse and zebrafish genetic models, and basic molecular and cellular studies. This review addresses the genetic and molecular underpinnings of cerebral cavernous malformation disease, the mechanisms that lead to lesion hemorrhage, and emerging biomarkers and therapies for clinical treatment of cerebral cavernous malformation disease. It may also serve as an example for how focused basic and clinical investigation and emerging technologies can rapidly unravel a complex disease mechanism.
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Affiliation(s)
- Daniel A Snellings
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC (D.A.S., D.A.M.)
| | - Courtney C Hong
- Department of Medicine and Cardiovascular Institute, University of Pennsylvania, Philadelphia (C.C.H., A.A.R., M.L.K.)
| | - Aileen A Ren
- Department of Medicine and Cardiovascular Institute, University of Pennsylvania, Philadelphia (C.C.H., A.A.R., M.L.K.)
| | - Miguel A Lopez-Ramirez
- Department of Medicine (M.A.L.-R., M.H.G.), University of California, San Diego, La Jolla
- Department of Pharmacology (M.A.L.-R.), University of California, San Diego, La Jolla
| | - Romuald Girard
- Neurovascular Surgery Program, Section of Neurosurgery, Department of Surgery, The University of Chicago Medicine and Biological Sciences, Chicago, Illinois
| | - Abhinav Srinath
- Neurovascular Surgery Program, Section of Neurosurgery, Department of Surgery, The University of Chicago Medicine and Biological Sciences, Chicago, Illinois
| | - Douglas A Marchuk
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC (D.A.S., D.A.M.)
| | - Mark H Ginsberg
- Department of Medicine (M.A.L.-R., M.H.G.), University of California, San Diego, La Jolla
| | - Issam A Awad
- Neurovascular Surgery Program, Section of Neurosurgery, Department of Surgery, The University of Chicago Medicine and Biological Sciences, Chicago, Illinois
| | - Mark L Kahn
- Department of Medicine and Cardiovascular Institute, University of Pennsylvania, Philadelphia (C.C.H., A.A.R., M.L.K.)
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Shoubash L, Baldauf J, Matthes M, Kirsch M, Rath M, Felbor U, Schroeder HWS. Long-term outcome and quality of life after CNS cavernoma resection: eloquent vs. non-eloquent areas. Neurosurg Rev 2021; 45:649-660. [PMID: 34164745 PMCID: PMC8827309 DOI: 10.1007/s10143-021-01572-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 04/18/2021] [Accepted: 05/26/2021] [Indexed: 11/30/2022]
Abstract
The aim of this study is to analyze the long-term quality of life after surgery of cavernoma. A monocentric retrospective study was conducted on 69 patients with cavernoma treated microsurgically between 2000 and 2016. The eloquence was adopted from Spetzler-Martin definition. A most recent follow-up was elicited between 2017 and 2019, in which the quality of life (QoL) was evaluated with the Short Form-12 questionnaire (SF12). Forty-one lesions were in eloquent group (EG), 22 in non-eloquent group (NEG), 3 in orbit, and 3 in the spinal cord. Postoperative worsening of the modified Rankin scale (mRS) occurred in 19.5% of cases in EG versus 4.5% in NEG. After a mean follow-up of 6.5 years (SD 4.6), the neurological status was better or unchanged compared to baseline in 85.4% of EG and 100% of NEG. Regarding QoL assessment of 44 patients (EG n = 27, NEG n = 14) attended the last follow-up. Patients after eloquent cavernoma resection reported a non-inferior QoL in most SF12 domains (except for physical role) compared to NEG. However, they reported general health perception inferior to norms, which was affected by the limited physical and emotional roles. At a late follow-up, the surgical morbidity was transient in the NEG and mostly recovered in the EG. The QoL comparison between eloquent and non-eloquent cavernomas created interesting and new data after prolonged follow-up. These results add value for decision-making as well as patient counseling for future encountered cases. Preoperative evaluation of QoL is recommended for future studies to assess QoL dynamics.
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Affiliation(s)
- Loay Shoubash
- Department of Neurosurgery, University Medicine Greifswald, Ferdinand-Sauerbruch-Strasse, 17475, Greifswald, Germany.
| | - Jörg Baldauf
- Department of Neurosurgery, University Medicine Greifswald, Ferdinand-Sauerbruch-Strasse, 17475, Greifswald, Germany
| | - Marc Matthes
- Department of Neurosurgery, University Medicine Greifswald, Ferdinand-Sauerbruch-Strasse, 17475, Greifswald, Germany
| | - Michael Kirsch
- Department of Neuroradiology, University Medicine Greifswald, Greifswald, Germany
| | - Matthias Rath
- Department of Human Genetics, University Medicine Greifswald and Interfaculty Institute of Genetics and Functional Genomics, University of Greifswald, Greifswald, Germany
| | - Ute Felbor
- Department of Human Genetics, University Medicine Greifswald and Interfaculty Institute of Genetics and Functional Genomics, University of Greifswald, Greifswald, Germany
| | - Henry W S Schroeder
- Department of Neurosurgery, University Medicine Greifswald, Ferdinand-Sauerbruch-Strasse, 17475, Greifswald, Germany
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Rutledge C, Raper DMS, Rodriguez Rubio R, Winkler EA, Abla AA. Supracerebellar Infratentorial Infratrochlear Trans-Quadrangular Lobule Approach to Pontine Cavernous Malformations. Oper Neurosurg (Hagerstown) 2021; 20:268-275. [PMID: 33432968 DOI: 10.1093/ons/opaa373] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Accepted: 09/06/2020] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Brainstem cavernous malformations with symptomatic hemorrhage have a poor natural history. Those without a pial or ependymal presentation are often observed given the morbidity of resection. Surgical removal is considered only in patients with accessible lesions that have repeated symptomatic hemorrhagic. OBJECTIVE To describe a novel supracerebellar infratentorial infratrochlear trans-quadrangular lobule approach to safely resect lesions in the upper pons. METHODS We use a hybrid paramedian/lateral suboccipital craniotomy in the gravity-dependent supine position. Opening the cerebellomesencephalic fissure over the tentorial surface of the cerebellum brings the trochlear nerve, branches of the superior cerebellar artery, and the quadrangular lobule of the cerebellum into view. Removal of small a portion of the quadrangular lobule defines an entry point on the superomedial aspect of the middle cerebellar peduncle, and a surgical trajectory aimed superior to inferior. RESULTS A total of 6 patients underwent this approach. All presented with symptomatic hemorrhage and all cavernous malformations were completely resected. Five patients were improved or unchanged with modified Rankin scale scores of 1 or 2. CONCLUSION The trans-quadrangular lobule approach allows safe resection of upper pontine cavernous malformations along a superior to inferior trajectory.
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Affiliation(s)
- Caleb Rutledge
- Department of Neurological Surgery, University of California, San Francisco, San Francisco, California
| | - Daniel M S Raper
- Department of Neurological Surgery, University of California, San Francisco, San Francisco, California
| | - Roberto Rodriguez Rubio
- Department of Neurological Surgery, University of California, San Francisco, San Francisco, California
| | - Ethan A Winkler
- Department of Neurological Surgery, University of California, San Francisco, San Francisco, California
| | - Adib A Abla
- Department of Neurological Surgery, University of California, San Francisco, San Francisco, California
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121
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Beucler N, Boissonneau S, Ruf A, Fuentes S, Carron R, Dufour H. Crossed brainstem syndrome revealing bleeding brainstem cavernous malformation: an illustrative case. BMC Neurol 2021; 21:204. [PMID: 34016062 PMCID: PMC8136125 DOI: 10.1186/s12883-021-02223-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 05/04/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Since the nineteenth century, a great variety of crossed brainstem syndromes (CBS) have been described in the medical literature. A CBS typically combines ipsilateral cranial nerves deficits to contralateral long tracts involvement such as hemiparesis or hemianesthesia. Classical CBS seem in fact not to be so clear-cut entities with up to 20% of patients showing different or unnamed combinations of crossed symptoms. In terms of etiologies, acute brainstem infarction predominates but CBS secondary to hemorrhage, neoplasm, abscess, and demyelination have been described. The aim of this study was to assess the proportion of CBS caused by a bleeding episode arising from a brainstem cavernous malformation (BCM) reported in the literature. CASE PRESENTATION We present the case of a typical Foville syndrome in a 65-year-old man that was caused by a pontine BCM with extralesional bleeding. Following the first bleeding episode, a conservative management was decided but the patient had eventually to be operated on soon after the second bleeding event. DISCUSSION A literature review was conducted focusing on the five most common CBS (Benedikt, Weber, Foville, Millard-Gubler, Wallenberg) on Medline database from inception to 2020. According to the literature, hemorrhagic BCM account for approximately 7 % of CBS. Microsurgical excision may be indicated after the second bleeding episode but needs to be carefully weighted up against the risks of the surgical procedure and openly discussed with the patient. CONCLUSIONS In the setting of a CBS, neuroimaging work-up may not infrequently reveal a BCM requiring complex multidisciplinary team management including neurosurgical advice.
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Affiliation(s)
- Nathan Beucler
- Department of Neurosurgery, Timone University Hospital, APHM, 264 rue Saint-Pierre, 13005, Marseille, France. .,Ecole du Val-de-Grâce, French Military Health Service Academy, 1 place Alphonse Laveran, 75230, Paris Cedex 5, France.
| | - Sébastien Boissonneau
- Department of Neurosurgery, Timone University Hospital, APHM, 264 rue Saint-Pierre, 13005, Marseille, France.,Aix Marseille Univ, INSERM, INS, Inst Neurosci Syst, Marseille, France
| | - Aurélia Ruf
- Emergency Department, Timone University Hospital, APHM, 264 Rue Saint-Pierre, 13005, Marseille, France
| | - Stéphane Fuentes
- Department of Neurosurgery, Timone University Hospital, APHM, 264 rue Saint-Pierre, 13005, Marseille, France
| | - Romain Carron
- Aix Marseille Univ, INSERM, INS, Inst Neurosci Syst, Marseille, France.,Department of Stereotactic and Functional Neurosurgery, Timone University Hospital, APHM, 264 rue Saint-Pierre, 13005, Marseille, France
| | - Henry Dufour
- Department of Neurosurgery, Timone University Hospital, APHM, 264 rue Saint-Pierre, 13005, Marseille, France.,Aix-Marseille Univ, INSERM, MMG, Marseille, France
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122
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Girard R, Li Y, Stadnik A, Shenkar R, Hobson N, Romanos S, Srinath A, Moore T, Lightle R, Shkoukani A, Akers A, Carroll T, Christoforidis GA, Koenig JI, Lee C, Piedad K, Greenberg SM, Kim H, Flemming KD, Ji Y, Awad IA. A Roadmap for Developing Plasma Diagnostic and Prognostic Biomarkers of Cerebral Cavernous Angioma With Symptomatic Hemorrhage (CASH). Neurosurgery 2021; 88:686-697. [PMID: 33469662 DOI: 10.1093/neuros/nyaa478] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 08/16/2020] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Cerebral cavernous angioma (CA) is a capillary microangiopathy predisposing more than a million Americans to premature risk of brain hemorrhage. CA with recent symptomatic hemorrhage (SH), most likely to re-bleed with serious clinical sequelae, is the primary focus of therapeutic development. Signaling aberrations in CA include proliferative dysangiogenesis, blood-brain barrier hyperpermeability, inflammatory/immune processes, and anticoagulant vascular domain. Plasma levels of molecules reflecting these mechanisms and measures of vascular permeability and iron deposition on magnetic resonance imaging are biomarkers that have been correlated with CA hemorrhage. OBJECTIVE To optimize these biomarkers to accurately diagnose cavernous angioma with symptomatic hemorrhage (CASH), prognosticate the risk of future SH, and monitor cases after a bleed and in response to therapy. METHODS Additional candidate biomarkers, emerging from ongoing mechanistic and differential transcriptome studies, would further enhance the sensitivity and specificity of diagnosis and prediction of CASH. Integrative combinations of levels of plasma proteins and characteristic micro-ribonucleic acids may further strengthen biomarker associations. We will deploy advanced statistical and machine learning approaches for the integration of novel candidate biomarkers, rejecting noncorrelated candidates, and determining the best clustering and weighing of combined biomarker contributions. EXPECTED OUTCOMES With the expertise of leading CA researchers, this project anticipates the development of future blood tests for the diagnosis and prediction of CASH to clinically advance towards precision medicine. DISCUSSION The project tests a novel integrational approach of biomarker development in a mechanistically defined cerebrovascular disease with a relevant context of use, with an approach applicable to other neurological diseases with similar pathobiologic features.
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Affiliation(s)
- Romuald Girard
- Neurovascular Surgery Program, Department of Surgery, Section of Neurosurgery, University of Chicago Medicine and Biological Sciences, Chicago, Illinois
| | - Yan Li
- Neurovascular Surgery Program, Department of Surgery, Section of Neurosurgery, University of Chicago Medicine and Biological Sciences, Chicago, Illinois.,Bioinformatics core, Center for Research Informatics, University of Chicago, Chicago, Illinois
| | - Agnieszka Stadnik
- Neurovascular Surgery Program, Department of Surgery, Section of Neurosurgery, University of Chicago Medicine and Biological Sciences, Chicago, Illinois
| | - Robert Shenkar
- Neurovascular Surgery Program, Department of Surgery, Section of Neurosurgery, University of Chicago Medicine and Biological Sciences, Chicago, Illinois
| | - Nicholas Hobson
- Neurovascular Surgery Program, Department of Surgery, Section of Neurosurgery, University of Chicago Medicine and Biological Sciences, Chicago, Illinois
| | - Sharbel Romanos
- Neurovascular Surgery Program, Department of Surgery, Section of Neurosurgery, University of Chicago Medicine and Biological Sciences, Chicago, Illinois
| | - Abhinav Srinath
- Neurovascular Surgery Program, Department of Surgery, Section of Neurosurgery, University of Chicago Medicine and Biological Sciences, Chicago, Illinois
| | - Thomas Moore
- Neurovascular Surgery Program, Department of Surgery, Section of Neurosurgery, University of Chicago Medicine and Biological Sciences, Chicago, Illinois
| | - Rhonda Lightle
- Neurovascular Surgery Program, Department of Surgery, Section of Neurosurgery, University of Chicago Medicine and Biological Sciences, Chicago, Illinois
| | - Abdallah Shkoukani
- Neurovascular Surgery Program, Department of Surgery, Section of Neurosurgery, University of Chicago Medicine and Biological Sciences, Chicago, Illinois
| | | | - Timothy Carroll
- Department of Diagnostic Radiology, The University of Chicago Medicine and Biological Sciences, Chicago, Illinois
| | - Gregory A Christoforidis
- Department of Diagnostic Radiology, The University of Chicago Medicine and Biological Sciences, Chicago, Illinois
| | - James I Koenig
- National Institute of Neurological Disorders and Stroke, Bethesda, Maryland
| | | | - Kristina Piedad
- Neurovascular Surgery Program, Department of Surgery, Section of Neurosurgery, University of Chicago Medicine and Biological Sciences, Chicago, Illinois
| | - Steven M Greenberg
- Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts
| | - Helen Kim
- Department of Anesthesia & Perioperative Care, University of California at San Francisco, San Francisco, California
| | | | - Yuan Ji
- Department of Public Health Sciences, University of Chicago, Chicago, Illinois
| | - Issam A Awad
- Neurovascular Surgery Program, Department of Surgery, Section of Neurosurgery, University of Chicago Medicine and Biological Sciences, Chicago, Illinois
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Li D, Zheng JJ, Weng JC, Liu PP, Wu ZY, Zhang LW, Zhang JT, Wang L, Wu Z. Neurological outcomes of untreated brainstem cavernous malformations in a prospective observational cohort and literature review. Stroke Vasc Neurol 2021; 6:501-510. [PMID: 33737399 PMCID: PMC8717781 DOI: 10.1136/svn-2020-000608] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 02/02/2021] [Accepted: 02/21/2021] [Indexed: 11/24/2022] Open
Abstract
Background Haemorrhages of brainstem cavernous malformations (CMs) can lead to neurological deficits, the natural history of which is uncertain. The study aimed to evaluate the neurological outcomes of untreated brainstem CMs and to identify the adverse factors associated with worsened outcomes. Methods From 2009 to 2015, 698 patients (321 women) with brainstem CMs were entered into the prospective cohort after excluding patients lost to follow-up (n=43). All patients were registered, clinical data were collected and scheduled follow-up was performed. Results After a median follow-up of 60.9 months, prospective haemorrhages occurred in 167 patients (23.9%). The mean modified Rankin Scale scores at enrolment and at censoring time were 1.6 and 1.2. Neurological status was improved, unchanged and worsened in 334 (47.9%), 293 (42.0%) and 71 (10.2%) patients, respectively; 233 (33.4%) recovered to normal levels. Lesions crossing the axial midpoint (relative risk (RR) 2.325, p=0.003) and developmental venous anomaly (DVA) (RR 1.776, p=0.036) were independently significantly related to worsened outcomes. The percentage of worsened outcomes was 5.3% (18 of 337) in low-risk patients (neither DVA nor crossing the axial point) and increased to 26.0% (13 of 50) in high-risk patients (with both DVA and crossing the axial point). The percentage of worsened outcomes significantly increased as the number of prospective haemorrhages increased (from 1.5% (8 of 531, if 0 prospective ictus) to 37.5% (48 of 128, if 1 ictus) and 38.5% (15 of 39, if >1 ictus)). Conclusions The neurological outcomes of untreated brainstem CMs were improved/unchanged in majority of patients (89.8%) with a fatality rate of 1.7% in our cohort, which seemed to be favourable. Radiological features significantly predicted worsened outcomes. Our results provide evidence for clinical consultation and individualised treatment. The referral bias of our cohort was underlined.
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Affiliation(s)
- Da Li
- Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Jing-Jie Zheng
- Obstetrics and Gynecology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Jian-Cong Weng
- Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Pan-Pan Liu
- Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Ze-Yu Wu
- Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Li-Wei Zhang
- Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Jun-Ting Zhang
- Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Liang Wang
- Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Zhen Wu
- Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
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124
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Hong T, Xiao X, Ren J, Cui B, Zong Y, Zou J, Kou Z, Jiang N, Meng G, Zeng G, Shan Y, Wu H, Chen Z, Liang J, Xiao X, Tang J, Wei Y, Ye M, Sun L, Li G, Hu P, Hui R, Zhang H, Wang Y. Somatic MAP3K3 and PIK3CA mutations in sporadic cerebral and spinal cord cavernous malformations. Brain 2021; 144:2648-2658. [PMID: 33729480 DOI: 10.1093/brain/awab117] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 03/01/2021] [Accepted: 03/07/2021] [Indexed: 01/03/2023] Open
Abstract
Cavernous malformations (CMs) affecting the central nervous system occur in approximately 0.16% to 0.4% of the general population. The majority (85%) of the CMs are in a sporadic form, but the genetic background of sporadic CMs remains enigmatic. Of the 81 patients, 73 (90.1%) patients were detected carrying somatic missense variants in 2 genes: MAP3K3 and PIK3CA by whole-exome sequencing (WES). The mutation spectrum correlated with lesion size (P = 0.001), anatomical distribution (P < 0.001), MRI appearance (P = 0.004) and haemorrhage events (P = 0.006). PIK3CA mutation was a significant predictor of overt haemorrhage events (P = 0.003, OR = 11.252, 95% CI = 2.275-55.648). Enrichment of endothelial cell (EC) population was associated with a higher fractional abundance of the somatic mutations. Overexpression of the MAP3K3 mutation perturbed angiogenesis of EC models in vitro and zebrafish embryos in vivo. Distinct transcriptional signatures between different genetic subgroups of sporadic CMs were identified by single-cell RNA-sequencing (scRNA-seq) and verified by pathological staining. Significant apoptosis in MAP3K3 mutation carriers and overexpression of GDF15 and SERPINA5 in PIK3CA mutation carriers contributed to their phenotype. We identified activating MAP3K3 and PIK3CA somatic mutations in the majority (90.1%) of sporadic CMs and PIK3CA mutations could confer a higher risk for overt haemorrhage. Our data provide insights into genomic landscapes, propose a mechanistic explanation and underscore the possibility of a molecular classification for sporadic CMs.
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Affiliation(s)
- Tao Hong
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, China International Neuroscience Institute, Beijing, China
| | - Xiao Xiao
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jian Ren
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, China International Neuroscience Institute, Beijing, China
| | - Bing Cui
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Yuru Zong
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Jian Zou
- The Institute of Translational Medicine, Zhejiang University, Hangzhou, 310058, China
| | - Zqi Kou
- The Institute of Translational Medicine, Zhejiang University, Hangzhou, 310058, China
| | - Nan Jiang
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, China International Neuroscience Institute, Beijing, China
| | - Guolu Meng
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, China International Neuroscience Institute, Beijing, China
| | - Gao Zeng
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, China International Neuroscience Institute, Beijing, China
| | - Yongzhi Shan
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, China International Neuroscience Institute, Beijing, China
| | - Hao Wu
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, China International Neuroscience Institute, Beijing, China
| | - Zan Chen
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, China International Neuroscience Institute, Beijing, China
| | - Jiantao Liang
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, China International Neuroscience Institute, Beijing, China
| | - Xinru Xiao
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, China International Neuroscience Institute, Beijing, China
| | - Jie Tang
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, China International Neuroscience Institute, Beijing, China
| | - Yukui Wei
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, China International Neuroscience Institute, Beijing, China
| | - Ming Ye
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, China International Neuroscience Institute, Beijing, China
| | - Liyong Sun
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, China International Neuroscience Institute, Beijing, China
| | - Guilin Li
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, China International Neuroscience Institute, Beijing, China
| | - Peng Hu
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, China International Neuroscience Institute, Beijing, China
| | - Rutai Hui
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Hongqi Zhang
- Department of Neurosurgery, Xuanwu Hospital, Capital Medical University, China International Neuroscience Institute, Beijing, China
| | - Yibo Wang
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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125
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Paddock M, Lanham S, Gill K, Sinha S, Connolly DJA. Pediatric Cerebral Cavernous Malformations. Pediatr Neurol 2021; 116:74-83. [PMID: 33494000 DOI: 10.1016/j.pediatrneurol.2020.11.004] [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: 06/16/2020] [Revised: 10/30/2020] [Accepted: 11/07/2020] [Indexed: 11/28/2022]
Abstract
Cerebral cavernous malformations are the second most common vascular malformations in the central nervous system, and over one-third are found in children. Lesions may be solitary or multiple, be discovered incidentally, be sporadic, or be secondary to familial cavernomatosis or radiation therapy. Children may present with focal seizures, intracranial hemorrhage, or focal neurological deficits without radiological evidence of recent hemorrhage. We present several children with cerebral cavernous malformations and explore the challenges of their diagnosis in children, their key imaging features, the role of follow-up imaging, and their subsequent management including stereotactic radiosurgery and microsurgical resection. Individual patient risk stratification is advocated for all affected children and their families.
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Affiliation(s)
- Michael Paddock
- Medical Imaging Department, Barnsley Hospital NHS Foundation Trust, Barnsley, United Kingdom; Academic Unit of Child Health, University of Sheffield, Sheffield Children's NHS Foundation Trust, Sheffield, United Kingdom.
| | - Sarah Lanham
- Department of Neuroradiology, Royal Hallamshire Hospital, Sheffield, United Kingdom
| | - Kanwar Gill
- Medical Imaging Department, Barnsley Hospital NHS Foundation Trust, Barnsley, United Kingdom
| | - Saurabh Sinha
- Department of Neurosurgery, Royal Hallamshire Hospital, Sheffield, United Kingdom; Department of Neurosurgery, Sheffield Children's NHS Foundation Trust, Sheffield, United Kingdom
| | - Daniel J A Connolly
- Department of Neuroradiology, Royal Hallamshire Hospital, Sheffield, United Kingdom; Department of Radiology, Sheffield Children's NHS Foundation Trust, Sheffield, United Kingdom
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Florian IA, Timis TL, Kiss KR, Florian IS, Berindan-Neagoe I. Ruptured pontine cavernomas in infants: a report of two cases. Childs Nerv Syst 2021; 37:1009-1015. [PMID: 33070216 DOI: 10.1007/s00381-020-04898-8] [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: 07/03/2020] [Accepted: 09/22/2020] [Indexed: 10/23/2022]
Abstract
BACKGROUND Cavernous malformations (CMs) are either congenital or acquired vascular lesions comprised of sinusoid spaces filled with either blood or its breakdown products. They possess a relatively reduced risk of hemorrhage, yet placement within the posterior fossa and especially the brainstem heightens their likelihood to rupture, making them a likely cause of permanent and debilitating neurological deficit, as well as a veritable surgical challenge. Although the incidence of rupture varies with age among reported case series, it is undoubtable that the severity of this occurrence is the highest while the brain is as its most vulnerable period, i.e. during infancy. CASE PRESENTATIONS We present two patients, both female, 6.5- and 5-months-old respectively, who presented with brainstem hemorrhage from CM. They suffered from a sudden onset of hemiparesis and were subjected to surgical removal of their lesions and resulting hematomas. Both patients were discharged in a favorable neurological status and are currently alive and in good health. CONCLUSION Microsurgical treatment of brainstem CMs in infants is not only possible with minimal deficit, but also advisable if the lesions are symptomatic. Nevertheless, this requires substantial patience and experience to prevent significant loss of blood and injury to the structures of the posterior fossa. We argue that the safest method to prevent further damage from brainstem CM rebleed is to remove these lesions shortly after the initial hemorrhage.
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Affiliation(s)
- Ioan Alexandru Florian
- Clinic of Neurosurgery, Cluj County Emergency Clinical Hospital, Cluj-Napoca, Romania. .,Department of Neurosurgery, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania.
| | - Teodora Larisa Timis
- Department of Physiology, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Kinga Renata Kiss
- Clinic of Neurosurgery, Cluj County Emergency Clinical Hospital, Cluj-Napoca, Romania
| | - Ioan Stefan Florian
- Clinic of Neurosurgery, Cluj County Emergency Clinical Hospital, Cluj-Napoca, Romania.,Department of Neurosurgery, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Ioana Berindan-Neagoe
- The Research Center for Functional Genomics, Biomedicine and Translational Medicine, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania.,Functional Genomics and Experimental Pathology Department, The Oncology Institute "Prof. Dr. Ion Chiricuta", Cluj-Napoca, Romania
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Li D, Wu ZY, Liu PP, Ma JP, Huo XL, Wang L, Zhang LW, Wu Z, Zhang JT. Natural history of brainstem cavernous malformations: prospective hemorrhage rate and adverse factors in a consecutive prospective cohort. J Neurosurg 2021; 134:917-928. [PMID: 32168479 DOI: 10.3171/2019.12.jns192856] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2019] [Accepted: 12/30/2019] [Indexed: 11/06/2022]
Abstract
OBJECTIVE Given the paucity of data on the natural history of brainstem cavernous malformations (CMs), the authors aimed to evaluate the annual hemorrhage rate and hemorrhagic risk of brainstem CMs. METHODS Nine hundred seventy-nine patients diagnosed with brainstem CMs were referred to Beijing Tiantan Hospital from 2006 to 2015; 224 patients were excluded according to exclusion criteria, and 47 patients were lost to follow-up. Thus, this prospective observational cohort included 708 cases (324 females). All patients were registered, clinical data were recorded, and follow-up was completed. RESULTS Six hundred ninety (97.5%) of the 708 patients had a prior hemorrhage, 514 (72.6%) had hemorrhagic presentation, and developmental venous anomaly (DVA) was observed in 241 cases (34.0%). Two hundred thirty-seven prospective hemorrhages occurred in 175 patients (24.7%) during 3400.2 total patient-years, yielding a prospective annual hemorrhage rate of 7.0% (95% CI 6.2%-7.9%), which decreased to 4.7% after the 1st year. Multivariate Cox regression analysis after adjusting for sex and age identified hemorrhagic presentation (HR 1.574, p = 0.022), DVA (HR 1.678, p = 0.001), mRS score ≥ 2 on admission (HR 1.379, p = 0.044), lesion size > 1.5 cm (HR 1.458, p = 0.026), crossing the axial midpoint (HR 1.446, p = 0.029), and superficially seated location (HR 1.307, p = 0.025) as independent adverse factors for prospective hemorrhage, but history of prior hemorrhage was not significant. The annual hemorrhage rates were 8.3% and 4.3% in patients with and without hemorrhagic presentation, respectively; the rate was 9.9%, 6.0%, and 1.0% in patients with ≥ 2, only 1, and 0 prior hemorrhages, respectively; and the rate was 9.2% in patients with both hemorrhagic presentation and focal neurological deficit on admission. CONCLUSIONS The study reported an annual hemorrhage rate of 7.0% exclusively for brainstem CMs, which significantly increased if patients presented with both hemorrhagic presentation and focal neurological deficit (9.2%), or any other risk factor. Patients with a risk factor for hemorrhage needed close follow-up regardless of the number of prior hemorrhages. It should be noted that the referral bias in this study could have overestimated the annual hemorrhage rate. This study improved the understanding of the natural history of brainstem CMs, and the results are important for helping patients and physicians choose a suitable treatment option based on the risk factors and stratified annual rates.Clinical trial registration no.: ChiCTR-POC-17011575 (http://www.chictr.org.cn/).
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Affiliation(s)
- Da Li
- 1Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing; and
| | - Ze-Yu Wu
- 1Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing; and
| | - Pan-Pan Liu
- 1Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing; and
- 2Department of Neurosurgery, The Municipal Hospital of Weihai, People's Republic of China
| | - Jun-Peng Ma
- 1Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing; and
| | - Xu-Lei Huo
- 1Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing; and
| | - Liang Wang
- 1Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing; and
| | - Li-Wei Zhang
- 1Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing; and
| | - Zhen Wu
- 1Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing; and
| | - Jun-Ting Zhang
- 1Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Beijing; and
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Carrión-Penagos J, Zeineddine HA, Polster SP, Girard R, Lyne SB, Koskimäki J, Romanos S, Srinath A, Zhang D, Cao Y, Stadnik A, Piedad K, Shenkar R, Awad IA. Subclinical imaging changes in cerebral cavernous angiomas during prospective surveillance. J Neurosurg 2021; 134:1147-1154. [PMID: 32244216 PMCID: PMC7541547 DOI: 10.3171/2020.1.jns193479] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Accepted: 01/28/2020] [Indexed: 11/06/2022]
Abstract
OBJECTIVE The purpose of this study was to systematically assess asymptomatic changes (ACs), including subclinical hemorrhage, growth, or new lesion formation (NLF) during longitudinal follow-up of cerebral cavernous angiomas (CAs), and to correlate these with symptomatic hemorrhage (SH) during the same period and with clinical features of the disease. METHODS One hundred ninety-two patients were included in this study, among 327 consecutive patients with CA, prospectively identified between September 2009 and February 2019. Included patients had undergone clinical and MRI follow-up, in conjunction with institutional review board-approved biomarker studies, and harbored ≥ 1 CA with a maximum diameter of ≥ 5 mm on T2-weighted MRI. Rates of AC and SH per lesion-year and patient-year were assessed using prospectively articulated criteria. In multifocal/familial cases, rates of NLF were also assessed. RESULTS There were no differences in demographic or disease features among cases included or excluded in the study cohort, except for a higher proportion of included patients with CCM3 mutation. Follow-up was 411 patient-years (2503 lesion-years). The rate of AC was higher than the rate of SH (12.9% vs 7.5% per patient-year, and 2.1% vs 1.2% per lesion-year, both p = 0.02). Patients presenting with a prior history of SH had a higher rate of AC than those with other forms of presentation (19.7% and 8.2% per patient-year, respectively; p = 0.003). A higher rate of NLF on T2-weighted MRI (p = 0.03) was observed in patients with prior SH. Three of 6 solitary/sporadic and 2 of 28 multifocal/familial patients underwent resection of the lesion after AC. CONCLUSIONS Rates of AC are greater than SH during prospective follow-up of CAs, and greater in cases with prior SH. AC may be a more sensitive biomarker of lesional activity, and a more efficient surrogate outcome in clinical trials than SH. Patients experiencing an AC are more likely to undergo a surgical intervention when CAs are solitary/sporadic than when they are multifocal/familial.
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Chen B, Saban D, Rauscher S, Herten A, Rauschenbach L, Santos A, Li Y, Schmidt B, Zhu Y, Jabbarli R, Wrede KH, Kleinschnitz C, Sure U, Dammann P. Modifiable Cardiovascular Risk Factors in Patients With Sporadic Cerebral Cavernous Malformations: Obesity Matters. Stroke 2021; 52:1259-1264. [PMID: 33588600 DOI: 10.1161/strokeaha.120.031569] [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: 11/16/2022]
Abstract
BACKGROUND AND PURPOSE This study aims to assess the influence of modifiable cardiovascular risk factors on hemorrhage risk of sporadic cerebral cavernous malformations (CCMs). METHODS From 1219 consecutive CCM patients (2003-2018), adult subjects with sporadic CCM and complete magnetic resonance imaging were included. We evaluated presence of intracerebral hemorrhage (ICH) as mode of presentation, occurrence of ICH during follow-up and risk factors arterial hypertension, diabetes, hyperlipidemia, nicotine abuse, and obesity (body mass index >30 kg/m2). Impact of risk factors on ICH at presentation was calculated using univariate and multivariate logistic regression with age and sex adjustment. We performed Kaplan-Meier and Cox regression to analyze cumulative 5-year risk for (re)bleeding. RESULTS We included 682 patients with CCM. The univariate logistic regression showed a significant relationship (odds ratio=1.938 [95% CI, 1.120-3.353], P=0.018) between obesity and ICH as mode of presentation. Multivariate adjusted logistic regression confirmed significant correlation with odds ratio=1.902 (95% CI, 1.024-3.532, P=0.042). Cox regression did not identify predictors for occurrence of (re)hemorrhage (P>0.05; hazard ratios: arterial hypertension 1.112 [95% CI, 0.622-1.990], diabetes 0.850 [95% CI, 0.208-3.482], hyperlipidemia 0.719 [95% CI, 0.261-1.981], nicotine abuse 1.123 [95% CI, 0.591-2.134], and obesity 0.928 [95% CI, 0.416-2.070]). CONCLUSIONS This study provides evidence that obesity may be a risk factor for CCM hemorrhage. It was significantly associated with ICH as mode of presentation. Other risk factors (arterial hypertension, diabetes, hyperlipidemia, and current nicotine abuse) showed no such effect. None of the factors showed to be independent predictors for cumulative 5-year risk of (re)bleeding.
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Affiliation(s)
- Bixia Chen
- Department of Neurosurgery and Spine Surgery (B.C., D.S., S.R., A.H., L.R., A.S., Y.Z., R.J., K.H.W., U.S., P.D.), University Hospital Essen, University of Duisburg-Essen, Germany
| | - Dino Saban
- Department of Neurosurgery and Spine Surgery (B.C., D.S., S.R., A.H., L.R., A.S., Y.Z., R.J., K.H.W., U.S., P.D.), University Hospital Essen, University of Duisburg-Essen, Germany
| | - Steffen Rauscher
- Department of Neurosurgery and Spine Surgery (B.C., D.S., S.R., A.H., L.R., A.S., Y.Z., R.J., K.H.W., U.S., P.D.), University Hospital Essen, University of Duisburg-Essen, Germany
| | - Annika Herten
- Department of Neurosurgery and Spine Surgery (B.C., D.S., S.R., A.H., L.R., A.S., Y.Z., R.J., K.H.W., U.S., P.D.), University Hospital Essen, University of Duisburg-Essen, Germany
| | - Laurèl Rauschenbach
- Department of Neurosurgery and Spine Surgery (B.C., D.S., S.R., A.H., L.R., A.S., Y.Z., R.J., K.H.W., U.S., P.D.), University Hospital Essen, University of Duisburg-Essen, Germany
| | - Alejandro Santos
- Department of Neurosurgery and Spine Surgery (B.C., D.S., S.R., A.H., L.R., A.S., Y.Z., R.J., K.H.W., U.S., P.D.), University Hospital Essen, University of Duisburg-Essen, Germany
| | - Yan Li
- Institute of Diagnostic and Interventional Radiology and Neuroradiology (Y.L.), University Hospital Essen, University of Duisburg-Essen, Germany
| | - Boerge Schmidt
- Institute for Medical Informatics, Biometry and Epidemiology (B.S.), University Hospital Essen, University of Duisburg-Essen, Germany
| | - Yuan Zhu
- Department of Neurosurgery and Spine Surgery (B.C., D.S., S.R., A.H., L.R., A.S., Y.Z., R.J., K.H.W., U.S., P.D.), University Hospital Essen, University of Duisburg-Essen, Germany
| | - Ramazan Jabbarli
- Department of Neurosurgery and Spine Surgery (B.C., D.S., S.R., A.H., L.R., A.S., Y.Z., R.J., K.H.W., U.S., P.D.), University Hospital Essen, University of Duisburg-Essen, Germany
| | - Karsten H Wrede
- Department of Neurosurgery and Spine Surgery (B.C., D.S., S.R., A.H., L.R., A.S., Y.Z., R.J., K.H.W., U.S., P.D.), University Hospital Essen, University of Duisburg-Essen, Germany
| | - Christoph Kleinschnitz
- Department of Neurology (C.K.), University Hospital Essen, University of Duisburg-Essen, Germany
| | - Ulrich Sure
- Department of Neurosurgery and Spine Surgery (B.C., D.S., S.R., A.H., L.R., A.S., Y.Z., R.J., K.H.W., U.S., P.D.), University Hospital Essen, University of Duisburg-Essen, Germany
| | - Philipp Dammann
- Department of Neurosurgery and Spine Surgery (B.C., D.S., S.R., A.H., L.R., A.S., Y.Z., R.J., K.H.W., U.S., P.D.), University Hospital Essen, University of Duisburg-Essen, Germany
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Jagathesan T, OBrien M. Aeromedical Implications of Cerebral Cavernomas. Aerosp Med Hum Perform 2021; 92:120-123. [PMID: 33468293 DOI: 10.3357/amhp.5747.2021] [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: 11/24/2022]
Abstract
BACKGROUND: Cavernomas, cavernous angiomas, or cerebral cavernous malformations are clusters of endothelium-lined blood vessels usually found in the brain. With the increasing use of radiological imaging, these are being detected incidentally in asymptomatic aircrew. The UK Civil Aviation Authority (CAA) experience of cavernomas is described and the aeromedical concerns, that is, the risk of epilepsy, hemorrhage, and the development of a neurological deficit, are considered.METHODS: A search of the CAA database between 1990 and 2020 was performed for the term cavernoma. The gender, age at diagnosis, class of certification held, clinical presentation, location, and size of the lesion were noted. A PubMed literature review for papers with complications of cavernoma was performed.RESULTS: Six cases of cavernoma have been declared to the CAA: five professional pilots and one private pilot. Five were men and one was a woman. The age range was between 38 and 60 yr, with a mean of 48 yr. Two cases presented with clinical symptoms and four were asymptomatic. Complication rates for seizure and hemorrhage were extracted from the published literature together with the significance of other factors such as cavernoma size, family history, multiplicity, and the development of new lesions.DISCUSSION: A policy for the medical certification of aircrew with cavernomas that have presented with clinical symptoms and those that are detected incidentally is proposed.Jagathesan T, OBrien M. Aeromedical implications of cerebral cavernomas. Aerosp Med Hum Perform. 2021; 92(2):120123.
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131
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Joseph NK, Kumar S, Brown RD, Lanzino G, Flemming KD. Influence of Pregnancy on Hemorrhage Risk in Women With Cerebral and Spinal Cavernous Malformations. Stroke 2021; 52:434-441. [PMID: 33493052 DOI: 10.1161/strokeaha.120.031761] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND AND PURPOSE Pregnancy as a hemorrhage risk factor in women with cavernous malformations (CMs) is controversial. We describe prospective hemorrhage risk in women who become pregnant after an established CM diagnosis. METHODS Beginning in 2015, we recruited consecutive patients with radiologically confirmed CM of the brain or spinal cord to participate in a prospective registry. Participants underwent a baseline and annual medical record review, imaging review, and annual surveys to ascertain pregnancies, deliveries, and neurological complications. We collected prospective hemorrhage data on reproductive age women. We calculated prospective hemorrhage rates on childbearing age patients based on the number of hemorrhages occurring post-CM diagnosis during pregnancy and nonpregnancy, divided by the years of follow-up and censored at last follow-up, age 46, or surgery in sporadic-form CM. The hemorrhage rates were compared and the 95% CI presented with a P value of <0.05. RESULTS Of 160 women, 90 presented with CM under the age of 46 (average age 31.6 years; 25.6% familial form; 46.7% with hemorrhage; 24.4% brain stem location). These 90 patients had 136 pregnancies before CM diagnosis; 36 pregnancies occurred at or after the diagnosis of CM. Four patients had a hemorrhage while pregnant or postpartum leading to the first CM diagnosis. During 402.6 years of follow-up while not pregnant, 42 hemorrhages occurred prospectively yielding a 10.4% per year (95% CI, 7.5-14.0) risk of hemorrhage while not pregnant. No hemorrhages occurred during 32 prospective pregnancies (26 live births including 1 twinset and 7 nonviable fetuses) after CM diagnosis during 26.9 years of pregnancy time yielding a rate of 0% per year (95% CI, 0-13.6). We found no statistical difference in the rates of hemorrhage during pregnant and nonpregnant time (P=0.09). No hemorrhage occurred during delivery. CONCLUSIONS Our prospective data suggest that pregnancy does not increase the risk of hemorrhage in women with a known brain or spinal cord CM and that vaginal delivery is safe in appropriate candidates.
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Affiliation(s)
- Nycole K Joseph
- Department of Neurology (N.K.J., S.K., R.D.B., K.D.F.), Mayo Clinic, Rochester, MN
| | - Shivram Kumar
- Department of Neurology (N.K.J., S.K., R.D.B., K.D.F.), Mayo Clinic, Rochester, MN
| | - Robert D Brown
- Department of Neurology (N.K.J., S.K., R.D.B., K.D.F.), Mayo Clinic, Rochester, MN
| | | | - Kelly D Flemming
- Department of Neurology (N.K.J., S.K., R.D.B., K.D.F.), Mayo Clinic, Rochester, MN
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Abstract
Cerebral cavernous malformations (CCMs) are neurovascular abnormalities characterized by thin, leaky blood vessels resulting in lesions that predispose to haemorrhages, stroke, epilepsy and focal neurological deficits. CCMs arise due to loss-of-function mutations in genes encoding one of three CCM complex proteins, KRIT1, CCM2 or CCM3. These widely expressed, multi-functional adaptor proteins can assemble into a CCM protein complex and (either alone or in complex) modulate signalling pathways that influence cell adhesion, cell contractility, cytoskeletal reorganization and gene expression. Recent advances, including analysis of the structures and interactions of CCM proteins, have allowed substantial progress towards understanding the molecular bases for CCM protein function and how their disruption leads to disease. Here, we review current knowledge of CCM protein signalling with a focus on three pathways which have generated the most interest—the RhoA–ROCK, MEKK3–MEK5–ERK5–KLF2/4 and cell junctional signalling pathways—but also consider ICAP1-β1 integrin and cdc42 signalling. We discuss emerging links between these pathways and the processes that drive disease pathology and highlight important open questions—key among them is the role of subcellular localization in the control of CCM protein activity.
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Affiliation(s)
- Valerie L Su
- Department of Pharmacology, Yale University School of Medicine, PO Box 208066, 333 Cedar Street, New Haven, CT 06520, USA
| | - David A Calderwood
- Department of Pharmacology, Yale University School of Medicine, PO Box 208066, 333 Cedar Street, New Haven, CT 06520, USA.,Department of Cell Biology, Yale University School of Medicine, PO Box 208066, 333 Cedar Street, New Haven, CT 06520, USA
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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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Herten A, Chen B, Saban D, Santos A, Wrede K, Jabbarli R, Zhu Y, Schmidt B, Kleinschnitz C, Forsting M, Sure U, Dammann P. Health-related quality of life in patients with untreated cavernous malformations of the central nervous system. Eur J Neurol 2020; 28:491-499. [PMID: 32961598 DOI: 10.1111/ene.14546] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 09/05/2020] [Indexed: 11/30/2022]
Abstract
BACKGROUND AND PURPOSE To estimate health-related quality of life (HRQOL) in patients with untreated cavernous malformation of the CNS [cavernous cerebral malformations (CCMs)]. METHODS We performed a cross-sectional observational study on patients with CCMs admitted to our department from 1 November 2017 to 10 January 2020 using standardized interviews [short-form-36 questionnaire, hospital anxiety and depression score (HADS-A/D), CCM perception questionnaire]. Included criteria were diagnosis of an untreated CCM and information about the diagnosis in a specialized CCM consultation. Health-related quality of life (HRQOL) data were analyzed and compared to the German normal population. Uni- and multivariate analyses were carried out to identify variables with impact on outcome. RESULTS Two hundred nineteen (93%) of 229 eligible patients were included. Mean age was 46.3 ± 14.7 (18-86) years; 136 (62%) were female. Ninety-eight (45%) patients presented with symptomatic hemorrhage (SH), and 17 (8%) with repetitive SH. Ninety-two (42%) patients were asymptomatic. Thirty-seven patients (17%) suffered from cavernoma-related epilepsy. Twenty-eight patients (13%) suffered from familial CCMs. Patients showed significantly decreased component scores and subdomain scores compared to the normal population, with effects ranging from small to large. This accounted largely also for asymptomatic patients (except for physical component score and main physical subdomains). Multivariate regression analysis confirmed impact of functional impairment on physical component score. HADS-A was significantly increased. HADS-A/D strongly correlated with mental component score and individual perception of the CCM. CONCLUSIONS Patients with the diagnosis of a CCM showed decreased HRQOL compared to the normal population even when not suffering functional impairment or neurological symptoms. Our data may function as benchmarks in evaluation of different (future) management strategies.
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Affiliation(s)
- A Herten
- Department of Neurosurgery, University Hospital Essen, Essen, Germany
| | - B Chen
- Department of Neurosurgery, University Hospital Essen, Essen, Germany
| | - D Saban
- Department of Neurosurgery, University Hospital Essen, Essen, Germany
| | - A Santos
- Department of Neurosurgery, University Hospital Essen, Essen, Germany
| | - K Wrede
- Department of Neurosurgery, University Hospital Essen, Essen, Germany
| | - R Jabbarli
- Department of Neurosurgery, University Hospital Essen, Essen, Germany
| | - Y Zhu
- Department of Neurosurgery, University Hospital Essen, Essen, Germany
| | - B Schmidt
- Institute for Medical Informatics, Biometry and Epidemiology, University Hospital of Essen, Essen, Germany
| | - C Kleinschnitz
- Department of Neurology, University Hospital Essen, Essen, Germany
| | - M Forsting
- Department of Diagnostic and Interventional Radiology and Neuroradiology, University Hospital Essen, Essen, Germany
| | - U Sure
- Department of Neurosurgery, University Hospital Essen, Essen, Germany
| | - P Dammann
- Department of Neurosurgery, University Hospital Essen, Essen, Germany
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Cerebral cavernous malformation: Management and outcome during pregnancy and puerperium. A systematic review of literature. J Gynecol Obstet Hum Reprod 2020; 50:101927. [PMID: 33035718 DOI: 10.1016/j.jogoh.2020.101927] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Revised: 08/12/2020] [Accepted: 09/28/2020] [Indexed: 11/21/2022]
Abstract
INTRODUCTION Cerebral cavernomas malformations (CCMs) are vascular malformations that occur with an incidence of 0,4-0,8 % in general population. The most feared complication is cerebral hemorrhage. Currently there are no guidelines for pregnant women with CCMs. Some authors claimed that many physiological changes related to pregnancy could be linked to an high risk of rupture and bleeding of the cerebral cavernoma. However, more recent studies highlight that the presence of cerebral cavernomatosis is not a contraindication for pregnancy and that the risk of bleeding is similar in pregnant and in non-pregnant women. AIM OF THE STUDY The purpose of our work is to analyze, through the study of controversial findings in literature, all the information currently available trying to establish a common approach for management of women with cerebral cavernomatosis in pregnancy, during childbirth and in the puerperium. FINDINGS In accordance with existing literature, pregnancy does not appear to be a significant risk factor for the worsening of clinical manifestations associated with the presence of CCMs. Vaginal delivery is not contraindicated in patients with CCMs and there is no indication to perform cesarean section to reduce the incidence of hemorrhage. The only indication for neurosurgery of CCMs in pregnancy is the presence of rapidly progressive symptoms and should be postponed to the puerperium if arises after 30 weeks. The puerperium is a critical time for the woman with cavernomas for the possibility of bleeding and clinical observation must be continued. CONCLUSION The patients with a diagnosis of a CCMs can have a pregnancy without any particular risk to themselves and the fetus but should be addressed to highly specialized obstetrics center to assesses the initial individual risk related to their pathology and to follow the pregnancy.
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Ma L, Zhang S, Li Z, Wu CX, Wang Z, Zhan L, Hao Q, Wang H, Ye X, Chen X, Liu YO, Wang S, Zhao YL. Morbidity After Symptomatic Hemorrhage of Cerebral Cavernous Malformation: A Nomogram Approach to Risk Assessment. Stroke 2020; 51:2997-3006. [PMID: 32951540 DOI: 10.1161/strokeaha.120.029942] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
BACKGROUND AND PURPOSE Symptomatic hemorrhage contributes to an increased risk of repeated bleeding and morbidity in cerebral cavernous malformation (CCM). A better understanding of morbidity after CCM hemorrhage would be helpful to identify patients of higher risk for unfavorable outcome and tailor individualized management. METHODS We identified 282 consecutive patients who referred to our institute from 2014 to 2018 for CCM with symptomatic hemorrhage and had an untreated follow-up period over 6 months after the first hemorrhage. The morbidity after hemorrhage was described in CCM of different features. Nomogram to predict morbidity was formulated based on the multivariable model of risk factors. The predictive accuracy and discriminative ability of nomogram were determined with concordance index (C-index) and calibration curve, and further validated in an independent CCM cohort of a prospective multicenter study from 2019 to 2020. RESULTS The overall morbidity of CCM was 26.2% after a mean follow-up of 1.9 years (range 0.5-3.5 years) since the first hemorrhage. The morbidity during untreated follow-up was associated with hemorrhage ictus (adjusted odds ratio per ictus increase, 4.17 [95% CI, 1.86-9.33]), modified Rankin Scale score at initial hemorrhage (adjusted odds ratio per point increase, 2.57 [95% CI, 1.82-3.63]), brainstem location (adjusted odds ratio, 2.93 [95% CI, 1.28-6.68]), and associated developmental venous anomaly (adjusted odds ratio, 2.21 [95% CI, 1.01-4.83]). Subgroup analysis revealed similar findings in brainstem and non-brainstem CCM. Nomogram was contracted based on these features. The calibration curve showed good agreement between nomogram prediction and actual observation. The C-index of nomogram predicting morbidity was 0.83 (95% CI, 0.77-0.88). In validation cohort, the nomogram maintained the discriminative ability (C-index, 0.87 [95% CI, 0.78-0.96]). CONCLUSIONS Multiple symptomatic hemorrhages, initial neurological function after hemorrhage, brainstem location, and associated developmental venous anomaly were associated with morbidity of CCM hemorrhage. The nomogram represented a practical approach to provide individualized risk assessment for CCM patients. Registration: URL: https://www.clinicaltrials.gov. Unique identifier: NCT04076449.
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Affiliation(s)
- Li Ma
- Department of Neurosurgery (L.M., S.Z., Q.H., H.W., X.Y., X.C., S.W., Y.-L.Z.), Beijing Tiantan Hospital, Capital Medical University, PR China.,China National Clinical Research Center for Neurological Diseases, Beijing, China (L.M., S.Z., Q.H., H.W., X.Y., X.C., Y.-O.L., S.W., Y.-L.Z.)
| | - Shuo Zhang
- Department of Neurosurgery (L.M., S.Z., Q.H., H.W., X.Y., X.C., S.W., Y.-L.Z.), Beijing Tiantan Hospital, Capital Medical University, PR China.,China National Clinical Research Center for Neurological Diseases, Beijing, China (L.M., S.Z., Q.H., H.W., X.Y., X.C., Y.-O.L., S.W., Y.-L.Z.)
| | - Zongze Li
- Department of Neurosurgery, Peking University International Hospital, Beijing, China (Z.L.)
| | - Chun-Xue Wu
- Department of Radiology (C.-X.W., Z.W., Y.-O.L., Y.-L.Z.), Beijing Tiantan Hospital, Capital Medical University, PR China
| | - Zhaozhao Wang
- Department of Radiology (C.-X.W., Z.W., Y.-O.L., Y.-L.Z.), Beijing Tiantan Hospital, Capital Medical University, PR China
| | - Lei Zhan
- School of Nursing, The George Washington University, Washington, DC (L.Z.)
| | - Qiang Hao
- Department of Neurosurgery (L.M., S.Z., Q.H., H.W., X.Y., X.C., S.W., Y.-L.Z.), Beijing Tiantan Hospital, Capital Medical University, PR China.,China National Clinical Research Center for Neurological Diseases, Beijing, China (L.M., S.Z., Q.H., H.W., X.Y., X.C., Y.-O.L., S.W., Y.-L.Z.)
| | - Hao Wang
- Department of Neurosurgery (L.M., S.Z., Q.H., H.W., X.Y., X.C., S.W., Y.-L.Z.), Beijing Tiantan Hospital, Capital Medical University, PR China.,China National Clinical Research Center for Neurological Diseases, Beijing, China (L.M., S.Z., Q.H., H.W., X.Y., X.C., Y.-O.L., S.W., Y.-L.Z.)
| | - Xun Ye
- Department of Neurosurgery (L.M., S.Z., Q.H., H.W., X.Y., X.C., S.W., Y.-L.Z.), Beijing Tiantan Hospital, Capital Medical University, PR China.,China National Clinical Research Center for Neurological Diseases, Beijing, China (L.M., S.Z., Q.H., H.W., X.Y., X.C., Y.-O.L., S.W., Y.-L.Z.).,Beijing Translational Engineering Center for 3D Print in Clinical Neuroscience, China (X.Y., S.W., Y.-L.Z.)
| | - Xiaolin Chen
- China National Clinical Research Center for Neurological Diseases, Beijing, China (L.M., S.Z., Q.H., H.W., X.Y., X.C., Y.-O.L., S.W., Y.-L.Z.)
| | - Ya-Ou Liu
- Department of Radiology (C.-X.W., Z.W., Y.-O.L., Y.-L.Z.), Beijing Tiantan Hospital, Capital Medical University, PR China.,China National Clinical Research Center for Neurological Diseases, Beijing, China (L.M., S.Z., Q.H., H.W., X.Y., X.C., Y.-O.L., S.W., Y.-L.Z.)
| | - Shuo Wang
- Department of Neurosurgery (L.M., S.Z., Q.H., H.W., X.Y., X.C., S.W., Y.-L.Z.), Beijing Tiantan Hospital, Capital Medical University, PR China.,China National Clinical Research Center for Neurological Diseases, Beijing, China (L.M., S.Z., Q.H., H.W., X.Y., X.C., Y.-O.L., S.W., Y.-L.Z.).,Center of Stroke, Beijing Institute for Brain Disorders, China (S.W., Y.-L.Z.).,Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, China (S.W., Y.-L.Z.).,Beijing Translational Engineering Center for 3D Print in Clinical Neuroscience, China (X.Y., S.W., Y.-L.Z.)
| | - Yuan-Li Zhao
- Department of Neurosurgery (L.M., S.Z., Q.H., H.W., X.Y., X.C., S.W., Y.-L.Z.), Beijing Tiantan Hospital, Capital Medical University, PR China.,Department of Radiology (C.-X.W., Z.W., Y.-O.L., Y.-L.Z.), Beijing Tiantan Hospital, Capital Medical University, PR China.,China National Clinical Research Center for Neurological Diseases, Beijing, China (L.M., S.Z., Q.H., H.W., X.Y., X.C., Y.-O.L., S.W., Y.-L.Z.).,Center of Stroke, Beijing Institute for Brain Disorders, China (S.W., Y.-L.Z.).,Beijing Key Laboratory of Translational Medicine for Cerebrovascular Disease, China (S.W., Y.-L.Z.).,Beijing Translational Engineering Center for 3D Print in Clinical Neuroscience, China (X.Y., S.W., Y.-L.Z.)
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Gaddi MJS, Pascual JSG, Legaspi EDC, Rivera PP, Omar AT. Giant Cerebellar Cavernomas in Pediatric Patients: Systematic Review with Illustrative Case. J Stroke Cerebrovasc Dis 2020; 29:105264. [PMID: 33066939 DOI: 10.1016/j.jstrokecerebrovasdis.2020.105264] [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: 07/13/2020] [Revised: 08/18/2020] [Accepted: 08/20/2020] [Indexed: 11/28/2022] Open
Abstract
INTRODUCTION Giant cavernomas (GCMs) are angiographically occult vascular malformations of the central nervous system measuring at least 4 cm in diameter. These are rare lesions, especially in the cerebellum. As such, the clinical and radiologic features, surgical management, and outcomes of treatment for this condition are unknown. METHODS We performed a systematic review of SCOPUS and PubMed databases for case reports and case series of histopathologically proven GCMs arising from the cerebellum in the pediatric population, and included a case managed at our center. Data on clinical presentation, imaging features, surgical treatment and outcomes of management were collected. RESULTS A total of 10 cases were identified from the systematic review, including our case report. The patients' median age was 6 months, with a slight male sex predilection (1.5:1). The most common neurologic manifestations were bulging fontanelle in infants, and headache and focal cerebellar deficits in older children. Surgical excision was done in all cases, while 50% of the cases had CSF diversion surgery done prior to excision. In cases with reported outcome, complete neurologic recovery was achieved in seven while partial recovery was reported in one case. No deaths were reported at median follow-up of 12 months. CONCLUSION Our case report and systematic review show that giant cerebellar cavernoma is a rare differential diagnosis for symptomatic hemorrhagic cerebellar masses in the pediatric age group. Mainstay of treatment is surgical excision, which can be associated with favorable outcome in most cases.
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Affiliation(s)
- Mairre James S Gaddi
- Division of Neurosurgery, Department of Neurosciences, University of the Philippines Manila - Philippine General Hospital, Taft Avenue, Manila, Philippines
| | - Juan Silvestre G Pascual
- Division of Neurosurgery, Department of Neurosciences, University of the Philippines Manila - Philippine General Hospital, Taft Avenue, Manila, Philippines
| | - Eric Dennis C Legaspi
- Division of Neurosurgery, Department of Neurosciences, University of the Philippines Manila - Philippine General Hospital, Taft Avenue, Manila, Philippines
| | - Peter P Rivera
- Division of Neurosurgery, Department of Neurosciences, University of the Philippines Manila - Philippine General Hospital, Taft Avenue, Manila, Philippines
| | - Abdelsimar T Omar
- Division of Neurosurgery, Department of Neurosciences, University of the Philippines Manila - Philippine General Hospital, Taft Avenue, Manila, Philippines.
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Anamnart C, Piyapittayanan S. Cheiro-oral-pedal syndrome as the presenting symptom of brainstem cavernous malformation: a case report. Oxf Med Case Reports 2020; 2020:omaa074. [PMID: 32995029 PMCID: PMC7507882 DOI: 10.1093/omcr/omaa074] [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: 05/06/2020] [Revised: 06/09/2020] [Accepted: 07/14/2020] [Indexed: 11/16/2022] Open
Abstract
The rare cheiro-oral-pedal syndrome (COPS) is characterized by sensory disturbances around the corner of the mouth, and in the hand and foot of the same side. The causative lesion is located in the thalamocortical projections, thalamus or brainstem and is usually due to ischemic or hemorrhagic stroke. We report a case of a patient with brain stem cavernous malformations presented as pure COPS with additional sensory disturbance in the thorax. We report this case to raise awareness of these very rare syndromes and demonstrate that mildly presenting symptoms can be caused by an underlying devastating condition.
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Affiliation(s)
- Chumpol Anamnart
- Faculty of Medicine, Prapokklao Hospital, Chulalongkorn University, Chanthaburi, Thailand
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139
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Flemming KD, Lanzino G. Cerebral Cavernous Malformation: What a Practicing Clinician Should Know. Mayo Clin Proc 2020; 95:2005-2020. [PMID: 32605781 DOI: 10.1016/j.mayocp.2019.11.005] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 10/17/2019] [Accepted: 11/13/2019] [Indexed: 01/24/2023]
Abstract
Cavernous malformations (CMs) are angiographically occult, low-flow vascular malformations of the central nervous system. They are acquired lesions, with approximately 80% of patients having the sporadic form and 20% the familial form of the disease. The lesions may also develop years after radiotherapy. At the microscopic level, they consist of endothelium-lined cavities (or "caverns") containing blood of different ages. The endothelium proliferates abnormally, and tight junctions are absent or dysfunctional, resulting in leakiness of the endothelium and clinical manifestations in some patients. Cavernous malformations can be an incidental finding or can present with focal neurologic deficits, seizures, or headache, with or without associated hemorrhage. Management of the CM lesion requires knowledge of the natural history of the disease compared with the risk of surgical intervention. Surgery is often considered for symptomatic patients with lesions in a noneloquent location. Medical management is warranted for symptoms related to the CM. Research aimed at understanding the genes and signaling pathways related to CMs have provided potential drug targets, and clinical trials are underway to determine whether medications reduce the risk of future bleeding without surgery or modify the disease course. In addition, recent epidemiologic data have aided practitioners in determining how to treat comorbid conditions in patients with a potentially hemorrhagic lesion. This review provides an overview of the epidemiology, presentation, and clinical management of CMs.
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140
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Idiculla PS, Gurala D, Philipose J, Rajdev K, Patibandla P. Cerebral Cavernous Malformations, Developmental Venous Anomaly, and Its Coexistence: A Review. Eur Neurol 2020; 83:360-368. [PMID: 32731220 DOI: 10.1159/000508748] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 05/17/2020] [Indexed: 11/19/2022]
Abstract
BACKGROUND Cerebral cavernous malformations (CCMs) are intracranial vascular malformations that can exist as a single lesion or mixed vascular lesions. The most common mixed form is the coexistence of CCM with an associated developmental venous anomaly (DVA). In this paper, we aim to give a comprehensive review of CCM, DVA, and their coexistence as mixed lesions. A PubMed search using the keywords "Cerebral cavernous malformations, Developmental venous anomaly, Mixed Cerebral cavernous malformations with Developmental venous anomaly" was done. All studies in the English language in the past 10 years were analyzed descriptively for this review. SUMMARY The search yielded 1,249 results for "Cerebral cavernous malformations," 271 results for "Developmental venous anomaly," and 5 results for "Mixed Cerebral cavernous malformations with Developmental venous anomaly." DVA is the most common intracranial vascular malformation, followed by CCM. CCM can have a wide array of clinical presentations like hemorrhage, seizures, or focal neurological deficits or can also be an incidental finding on brain imaging. DVAs are benign lesions by nature; however, venous infarction can occur in a few patients due to acute thrombosis. Mixed CCM with DVA has a higher risk of hemorrhage. CCMs are angiographically occult lesion, and cerebral digital subtraction angiography is the gold standard for the diagnosis of DVA. Mixed lesions, on the other hand, are best diagnosed with magnetic resonance imaging, which has also been effective in detecting specific abnormalities. Asymptomatic lesions are treated through a conservative approach, while clinically symptomatic lesions need surgical management. CONCLUSION Individual CCM or DVA lesions have a benign course; however, when they coexist in the same individual, the hemorrhagic risk is increased, which prompts for rapid diagnosis and treatment.
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Affiliation(s)
| | - Dhineshreddy Gurala
- Staten Island University Hospital, Northwell Health, Staten Island, New York, USA
| | - Jobin Philipose
- Staten Island University Hospital, Northwell Health, Staten Island, New York, USA
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Detter MR, Shenkar R, Benavides CR, Neilson CA, Moore T, Lightle R, Hobson N, Shen L, Cao Y, Girard R, Zhang D, Griffin E, Gallione CJ, Awad IA, Marchuk DA. Novel Murine Models of Cerebral Cavernous Malformations. Angiogenesis 2020; 23:651-666. [PMID: 32710309 DOI: 10.1007/s10456-020-09736-8] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 07/06/2020] [Indexed: 12/21/2022]
Abstract
Cerebral cavernous malformations (CCMs) are ectatic capillary-venous malformations that develop in approximately 0.5% of the population. Patients with CCMs may develop headaches, focal neurologic deficits, seizures, and hemorrhages. While symptomatic CCMs, depending upon the anatomic location, can be surgically removed, there is currently no pharmaceutical therapy to treat CCMs. Several mouse models have been developed to better understand CCM pathogenesis and test therapeutics. The most common mouse models induce a large CCM burden that is anatomically restricted to the cerebellum and contributes to lethality in the early days of life. These inducible models thus have a relatively short period for drug administration. We developed an inducible CCM3 mouse model that develops CCMs after weaning and provides a longer period for potential therapeutic intervention. Using this new model, three recently proposed CCM therapies, fasudil, tempol, vitamin D3, and a combination of the three drugs, failed to substantially reduce CCM formation when treatment was administered for 5 weeks, from postnatal day 21 (P21) to P56. We next restricted Ccm3 deletion to the brain vasculature and provided greater time (121 days) for CCMs to develop chronic hemorrhage, recapitulating the human lesions. We also developed the first model of acute CCM hemorrhage by injecting mice harboring CCMs with lipopolysaccharide. These efficient models will enable future drug studies to more precisely target clinically relevant features of CCM disease: CCM formation, chronic hemorrhage, and acute hemorrhage.
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Affiliation(s)
- Matthew R Detter
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC, 27705, USA
| | - Robert Shenkar
- Neurovascular Surgery Program, Department of Neurosurgery, University of Chicago Medicine and Biological Sciences, Chicago, IL, 60637, USA
| | - Christian R Benavides
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC, 27705, USA
| | - Catherine A Neilson
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC, 27705, USA
| | - Thomas Moore
- Neurovascular Surgery Program, Department of Neurosurgery, University of Chicago Medicine and Biological Sciences, Chicago, IL, 60637, USA
| | - Rhonda Lightle
- Neurovascular Surgery Program, Department of Neurosurgery, University of Chicago Medicine and Biological Sciences, Chicago, IL, 60637, USA
| | - Nicholas Hobson
- Neurovascular Surgery Program, Department of Neurosurgery, University of Chicago Medicine and Biological Sciences, Chicago, IL, 60637, USA
| | - Le Shen
- Neurovascular Surgery Program, Department of Neurosurgery, University of Chicago Medicine and Biological Sciences, Chicago, IL, 60637, USA
| | - Ying Cao
- Neurovascular Surgery Program, Department of Neurosurgery, University of Chicago Medicine and Biological Sciences, Chicago, IL, 60637, USA
| | - Romuald Girard
- Neurovascular Surgery Program, Department of Neurosurgery, University of Chicago Medicine and Biological Sciences, Chicago, IL, 60637, USA
| | - Dongdong Zhang
- Neurovascular Surgery Program, Department of Neurosurgery, University of Chicago Medicine and Biological Sciences, Chicago, IL, 60637, USA
| | - Erin Griffin
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC, 27705, USA
| | - Carol J Gallione
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC, 27705, USA
| | - Issam A Awad
- Neurovascular Surgery Program, Department of Neurosurgery, University of Chicago Medicine and Biological Sciences, Chicago, IL, 60637, USA
| | - Douglas A Marchuk
- Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Durham, NC, 27705, USA. .,James B Duke Professor, Department of Molecular Genetics and Microbiology, Duke University School of Medicine, Box 3175, Durham, NC, 27710, USA.
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Rabinstein AA, Flemming KD. Cavernous malformations with DVA. Neurology 2020; 95:13-14. [DOI: 10.1212/wnl.0000000000009718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Brown RD, Lanzino G, Kallmes DF. Introduction to Thematic Reviews on Neurovascular Diseases. Mayo Clin Proc 2020; 95:1310-1312. [PMID: 32622437 DOI: 10.1016/j.mayocp.2020.05.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Accepted: 05/21/2020] [Indexed: 10/23/2022]
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Chen B, Herten A, Saban D, Rauscher S, Radbruch A, Schmidt B, Zhu Y, Jabbarli R, Wrede KH, Kleinschnitz C, Sure U, Dammann P. Hemorrhage from cerebral cavernous malformations. Neurology 2020; 95:e89-e96. [DOI: 10.1212/wnl.0000000000009730] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2019] [Accepted: 01/27/2020] [Indexed: 11/15/2022] Open
Abstract
ObjectiveTo determine the role of associated developmental venous anomalies (DVAs) in intracranial hemorrhage (ICH) caused by cerebral cavernous malformations (CCMs).MethodsWe analyzed patient registry data of 1,219 patients with cavernous malformations treated in our institution between 2003 and 2018. Patients with spinal and familial CCM and patients without complete MRI data were excluded. The impact of various variables on ICH as a mode of presentation was assessed with multivariate binary logistic regression analysis. Kaplan Meier/Cox regression analysis was performed to analyze cumulative 5-year-risk for (re)hemorrhage and to identify baseline predictors of this outcome.ResultsSeven hundred thirty-one patients with CCM were included. Multivariate logistic regression confirmed a statistically significant negative correlation with DVA (odds ratio [OR] 0.635 [95% confidence interval (CI) 0.459–0.878]) and positive correlation with brainstem localization (OR 6.277 [95% CI 4.287–9.191]) with ICH as the mode of presentation. Among 731 patients, 76 experienced (re)hemorrhage during 2,338 person-years of follow-up. Overall cumulative 5-year risk was 24.1% (95% CI 21.1%–27.5%). Cox regression analysis revealed initial presentation with ICH (hazard ratio [HR] 8.0 [95% CI 3.549–18.122]) and brainstem localization (HR 2.9 [95% CI 1.756–4.765]) as independent baseline predictors of (re)hemorrhage. Presence of DVA added no independent prognostic information (HR 1.1 [95% CI 0.717–1.885]).ConclusionPatients with CCM with associated DVA are at lower risk to present with ICH. During untreated 5-year follow-up, they showed equal (re)hemorrhage risk compared to patients with CCM without DVA.
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Norrington M, Kumaria A, Cartmill M. Head trauma and cavernoma haemorrhage - the importance of causality. Br J Neurosurg 2020:1-2. [PMID: 32419499 DOI: 10.1080/02688697.2020.1765979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Cavernomas are common, benign vascular lesions that affect the brain. Five-year bleeding risk is approximately 3.8% for asymptomatic lesions. Non-spontaneous, traumatic cavernoma haemorrhage has been seldom reported. We present the case of a 49-year-old male with multiple traumatic brain injuries who was managed conservatively. Initial imaging was suggested, and reported as, a traumatic brainstem haemorrhage. However, after resuscitation and a follow-up MRI scan, the diagnosis of a cavernoma bleed was confirmed in keeping with his mild neurological syndrome. This case illustrates the old dictum to treat the patient and not the scan. It serves as one of the few reported cases of post-traumatic cavernoma bleed, and showcases the difficulty in ascribing haemorrhage to spontaneous or traumatic aetiology. We recommend having a low threshold to investigate further in these unusual situations.
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Affiliation(s)
| | - A Kumaria
- Department of Neurosurgery, Queen's Medical Centre, Nottingham, UK
| | - M Cartmill
- Department of Pediatric Neurosurgery, University of Nottingham, Nottingham, UK
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Lanfranconi S, Scola E, Bertani GA, Zarino B, Pallini R, d'Alessandris G, Mazzon E, Marino S, Carriero MR, Scelzo E, Faragò G, Castori M, Fusco C, Petracca A, d'Agruma L, Tassi L, d'Orio P, Lampugnani MG, Nicolis EB, Vasamì A, Novelli D, Torri V, Meessen JMTA, Al-Shahi Salman R, Dejana E, Latini R. Propranolol for familial cerebral cavernous malformation (Treat_CCM): study protocol for a randomized controlled pilot trial. Trials 2020; 21:401. [PMID: 32398113 PMCID: PMC7218540 DOI: 10.1186/s13063-020-4202-x] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Accepted: 02/24/2020] [Indexed: 12/21/2022] Open
Abstract
Background Cerebral cavernous malformations (CCMs) are vascular malformations characterized by clusters of enlarged leaky capillaries in the central nervous system. They may result in intracranial haemorrhage, epileptic seizure(s), or focal neurological deficits, and potentially lead to severe disability. Globally, CCMs represent the second most common intracranial vascular malformation in humans, and their familial form (FCCMs) accounts for one-fifth of cases. Neurosurgical excision, and perhaps stereotactic radiosurgery, is the only available therapeutic option. Case reports suggest that propranolol might modify disease progression. Methods Treat_CCM is a prospective, randomized, open-label, blinded endpoint (PROBE), parallel-group trial involving six Italian clinical centres with central reading of brain magnetic resonance imaging (MRI) and adverse events. Patients with symptomatic FCCMs are randomized (2:1 ratio) either to propranolol (40–80 mg twice daily) in addition to standard care or to standard care alone (i.e. anti-epileptic drugs or headache treatments). The primary outcome is intracranial haemorrhage or focal neurological deficit attributable to CCMs. The secondary outcomes are MRI changes over time (i.e. de novo CCM lesions, CCM size and signal characteristics, iron deposition, and vascular leakage as assessed by quantitative susceptibility mapping and dynamic contrast enhanced permeability), disability, health-related quality of life, depression severity, and anxiety (SF-36, BDI-II, State-Trait Anxiety Inventory). Discussion Treat_CCM will evaluate the safety and efficacy of propranolol for CCMs following promising case reports in a randomized controlled trial. The direction of effect on the primary outcome and the consistency of effects on the secondary outcomes (even if none of them yield statistically significant differences) of this external pilot study may lead to a larger sample size in a definitive phase 2 trial. Trial registration ClinicalTrails.gov, NCT03589014. Retrospectively registered on 17 July 2018.
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Affiliation(s)
- Silvia Lanfranconi
- Department of Neurology, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Padiglione Monteggia-piano 3, Via Francesco Sforza 35, 20122, Milan, Italy.
| | - Elisa Scola
- Department of Neuroradiology, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Via Francesco Sforza 35, 20122, Milan, Italy
| | - Giulio Andrea Bertani
- Department of Neurosurgery, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Via Francesco Sforza 35, 20122, Milan, Italy
| | - Barbara Zarino
- Department of Neurosurgery, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Via Francesco Sforza 35, 20122, Milan, Italy
| | - Roberto Pallini
- Department of Neurosurgery, Università Cattolica del Sacro Cuore, Largo Francesco Vito 1, 00168, Rome, Italy
| | - Giorgio d'Alessandris
- Department of Neurosurgery, Università Cattolica del Sacro Cuore, Largo Francesco Vito 1, 00168, Rome, Italy
| | - Emanuela Mazzon
- IRCCS Centro Neurolesi "Bonino Pulejo", Contrada Casazza, 98124, Messina, Italy
| | - Silvia Marino
- IRCCS Centro Neurolesi "Bonino Pulejo", Contrada Casazza, 98124, Messina, Italy
| | - Maria Rita Carriero
- Cerebrovascular Disease Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, Via Giovanni Celoria 11, 20133, Milan, Italy
| | - Emma Scelzo
- Cerebrovascular Disease Unit, Fondazione IRCCS Istituto Neurologico Carlo Besta, Via Giovanni Celoria 11, 20133, Milan, Italy
| | - Giuseppe Faragò
- Department of Neuroradiology, Fondazione IRCCS Istituto Neurologico Carlo Besta, Via Giovanni Celoria 11, 20133, Milan, Italy
| | - Marco Castori
- Division of Medical Genetics, Fondazione IRCCS Casa Sollievo della Sofferenza, Viale Cappuccini 2, 71013, San Giovanni Rotondo, Italy
| | - Carmela Fusco
- Division of Medical Genetics, Fondazione IRCCS Casa Sollievo della Sofferenza, Viale Cappuccini 2, 71013, San Giovanni Rotondo, Italy
| | - Antonio Petracca
- Division of Medical Genetics, Fondazione IRCCS Casa Sollievo della Sofferenza, Viale Cappuccini 2, 71013, San Giovanni Rotondo, Italy
| | - Leonardo d'Agruma
- Division of Medical Genetics, Fondazione IRCCS Casa Sollievo della Sofferenza, Viale Cappuccini 2, 71013, San Giovanni Rotondo, Italy
| | - Laura Tassi
- "Claudio Munari" Epilepsy Surgery Centre, ASST Grande Ospedale Metropolitano Niguarda, Piazza dell'Ospedale Maggiore 3, 20162, Milan, Italy
| | - Piergiorgio d'Orio
- "Claudio Munari" Epilepsy Surgery Centre, ASST Grande Ospedale Metropolitano Niguarda, Piazza dell'Ospedale Maggiore 3, 20162, Milan, Italy
| | - Maria Grazia Lampugnani
- Laboratory of Vascular Biology, IFOM, Firc Institute for Molecular Oncology, Via Adamello 16, 20139, Milan, Italy
| | - Enrico Bjorn Nicolis
- Laboratory of Cardiovascular Clinical Pharmacology, Mario Negri Institute for Pharmacological Research-IRCCS, Via Mario Negri, 2, 20156, Milan, Italy
| | - Antonella Vasamì
- Laboratory of Cardiovascular Clinical Pharmacology, Mario Negri Institute for Pharmacological Research-IRCCS, Via Mario Negri, 2, 20156, Milan, Italy
| | - Deborah Novelli
- Laboratory of Cardiovascular Clinical Pharmacology, Mario Negri Institute for Pharmacological Research-IRCCS, Via Mario Negri, 2, 20156, Milan, Italy
| | - Valter Torri
- Laboratory of Research Methodology, Mario Negri Institute for Pharmacological Research-IRCCS, Via Mario Negri, 2, 20156, Milan, Italy
| | - Jennifer Marie Theresia Anna Meessen
- Laboratory of Cardiovascular Clinical Pharmacology, Mario Negri Institute for Pharmacological Research-IRCCS, Via Mario Negri, 2, 20156, Milan, Italy
| | - Rustam Al-Shahi Salman
- Centre for Clinical Brain Sciences, University of Edinburgh, Little France Crescent 49, Edinburgh, EH16 4SB, UK
| | - Elisabetta Dejana
- Laboratory of Vascular Biology, IFOM, Firc Institute for Molecular Oncology, Via Adamello 16, 20139, Milan, Italy
| | - Roberto Latini
- Laboratory of Cardiovascular Clinical Pharmacology, Mario Negri Institute for Pharmacological Research-IRCCS, Via Mario Negri, 2, 20156, Milan, Italy
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147
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Zheng JJ, Liu PP, Wang L, Zhang LW, Zhang JT, Li D, Wu Z, Wu YM. Natural history of incidentally diagnosed brainstem cavernous malformations in a prospective observational cohort. Neurosurg Rev 2020; 44:1151-1164. [PMID: 32399728 DOI: 10.1007/s10143-020-01308-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2020] [Revised: 03/21/2020] [Accepted: 04/26/2020] [Indexed: 12/18/2022]
Abstract
There was a lack of natural history of incidental brainstem cavernous malformations (CMs), hemorrhage of which would lead to severe neuropathies. The study aimed to evaluate the prospective hemorrhage rate and neurological outcome of the disease. This prospective cohort included patients with incidental brainstem CMs referred to our institute from 2009 to 2015. The diagnosis was confirmed based on the patients' complain, physical examination, and radiographic evidence. Clinical data were collected, scheduled follow-up was performed, and the independent risk factors were identified by multivariate analysis. This cohort included 48 patients (22 female, 45.8%). The median follow-up duration was 60.7 months, and 13 prospective hemorrhages occurred within 244.0 patient-years yielding an annual hemorrhage rate of 5.3%. The hemorrhage-free survival at 1 and 5 years was 91.6% and 80.6%. Age ≥ 55 years (hazard ratio (HR) = 8.59, p = 0.003), lesion size (per 1-mm increase) (HR = 3.55, p = 0.041), developmental venous anomaly (HR = 10.28, p = 0.017), and perilesional edema (HR = 4.90, p = 0.043) were independent risk factors for hemorrhage. Seven patients (14.6%) received surgical resection, and the other 41 patients remained under observation. Neurological function was improved in 22 patients (45.8%), unchanged in 19 (39.6%), and worsened in 7 (14.6%). Prospective hemorrhage (odds ratio = 14.95, p = 0.037) was the only independent risk factor for worsened outcomes. The natural history of incidental brainstem CMs seemed to be acceptable with improved/unchanged outcomes in most patients (85.4%). These results improved our understanding of the disease, and the future study of a large cohort was required to verify our findings.
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Affiliation(s)
- Jing-Jie Zheng
- Department of Gynecologic Oncology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China
| | - Pan-Pan Liu
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Nansihuan Xilu 119, Fengtai District, Beijing, People's Republic of China
- Department of Neurosurgery, The Municipal Hospital of Weihai, No. 70 Heping Road, Huancui District, Weihai, People's Republic of China
| | - Liang Wang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Nansihuan Xilu 119, Fengtai District, Beijing, People's Republic of China
| | - Li-Wei Zhang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Nansihuan Xilu 119, Fengtai District, Beijing, People's Republic of China
| | - Jun-Ting Zhang
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Nansihuan Xilu 119, Fengtai District, Beijing, People's Republic of China
| | - Da Li
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Nansihuan Xilu 119, Fengtai District, Beijing, People's Republic of China.
| | - Zhen Wu
- Department of Neurosurgery, Beijing Tiantan Hospital, Capital Medical University, Nansihuan Xilu 119, Fengtai District, Beijing, People's Republic of China.
| | - Yu-Mei Wu
- Department of Gynecologic Oncology, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing, China.
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148
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Role of aspirin and statin therapy in patients with cerebral cavernous malformations. J Clin Neurosci 2020; 78:246-251. [PMID: 32340842 DOI: 10.1016/j.jocn.2020.04.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 03/14/2020] [Accepted: 04/05/2020] [Indexed: 12/23/2022]
Abstract
Stagnant blood flow and organizing thrombus are intralesional components of patients with cerebral cavernous malformations (CCM). Stasis and inflammation are mechanisms of growth, lesional instability and acute hemorrhages with or w/o symptoms. We evaluate the association of pre-diagnostic aspirin and/or statin use with acute hemorrhages at diagnosis. Patients with a CCM diagnosis were identified and categorized according to their medications on admission into four groups (no therapy, statin, aspirin, combined). The primary outcome was an acute hemorrhage (with or w/o symptoms) at diagnosis reported in a standardized manner from the T2 weighted magnetic resonance image. A multivariate generalized linear mixed models (GLMM) was utilized to conduct per-lesion analysis. We identified 446 patients with 635 lesions. An acute hemorrhage at diagnosis was observed in 31% of the patients. There were 328 patients without statin or aspirin therapy, 34% of whom presented with acute hemorrhage. Of patients on aspirin therapy at diagnosis, 25% presented with hemorrhage. Of patients on statin therapy, 26% had a hemorrhage at diagnosis. Combined therapy in 44 patients demonstrated a lower proportion of patients with acute hemorrhages (7 patients, 16% incidence). A GLMM showed that patients in the combined therapy group to have significantly lower odds of having an acute hemorrhage at diagnosis compared to the reference group of no therapy (OR 0.24; 95% CI 0.09-0.59; P = 0.002). Patients with a CCM receiving therapy with both aspirin and statins were less likely to present at diagnosis with acute hemorrhage.
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149
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Antunes CM, Marques RSF, Machado MJS, Marques LTM, Filipe MAR, Fernandes JS, Alegria CMG. Emergency surgery for brainstem cavernoma haemorrhage with severe neurological presentation. Is it indicated and worthwhile? Br J Neurosurg 2020; 34:427-433. [PMID: 32290713 DOI: 10.1080/02688697.2020.1753170] [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: 10/24/2022]
Abstract
Background: Brainstem Cavernoma (BSCM) haemorrhage is a complex condition, especially when patients present rapid neurological deterioration. Traditionally, these patients were initially treated by non-interventional means. Surgery was generally reserved for cases who presented a 'benign' evolution in a subacute/delayed fashion. Timing of surgery remains controversial. Since rebleeding is frequent and carries a high mortality, many of these patients do not tolerate this approach. Urgent/emergent surgery may be indicated and lifesaving.Methods: A single center experience is reported in which an aggressive approach was used with urgent/emergency surgery carried out on patients with BSCM haemorrhage and rapid neurological deterioration, ventilatory impairment and/or coma. A review of 5 consecutive cases where urgent/emergent surgery was performed is presented. The pre-operative status, pre- and post-operative examinations, surgical approach and neurological residual deficits/outcomes are reported.Results: Four females and one male with ages ranging from 36 to 66 years with rapid neurological deterioration, ventilatory impairment and/or coma were operated between 2011 and 2018. Favourable outcomes were observed with a modified Rankin Scale varying from 1 to 4. Cranial nerve deficits as well as motor and sensitive deficits were observed but all the patients recovered cognitive integrity.Conclusions: Our small series reveals an acceptable outcome with ultra-early surgery. This approach appears to be a valid option when there is rapid neurological deterioration, respiratory impairment and/or early onset coma. However, further studies are required to elucidate the optimal strategy.
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150
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Polster SP, Stadnik A, Akers AL, Cao Y, Christoforidis GA, Fam MD, Flemming KD, Girard R, Hobson N, Koenig JI, Koskimäki J, Lane K, Liao JK, Lee C, Lyne SB, McBee N, Morrison L, Piedad K, Shenkar R, Sorrentino M, Thompson RE, Whitehead KJ, Zeineddine HA, Hanley DF, Awad IA. Atorvastatin Treatment of Cavernous Angiomas with Symptomatic Hemorrhage Exploratory Proof of Concept (AT CASH EPOC) Trial. Neurosurgery 2020; 85:843-853. [PMID: 30476251 DOI: 10.1093/neuros/nyy539] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Accepted: 10/15/2018] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND More than a million Americans harbor a cerebral cavernous angioma (CA), and those who suffer a prior symptomatic hemorrhage have an exceptionally high rebleeding risk. Preclinical studies show that atorvastatin blunts CA lesion development and hemorrhage through inhibiting RhoA kinase (ROCK), suggesting it may confer a therapeutic benefit. OBJECTIVE To evaluate whether atorvastatin produces a difference compared to placebo in lesional iron deposition as assessed by quantitative susceptibility mapping (QSM) on magnetic resonance imaging in CAs that have demonstrated a symptomatic hemorrhage in the prior year. Secondary aims shall assess effects on vascular permeability, ROCK activity in peripheral leukocytes, signal effects on clinical outcomes, adverse events, and prespecified subgroups. METHODS The phase I/IIa placebo-controlled, double-blinded, single-site clinical trial aims to enroll 80 subjects randomized 1-1 to atorvastatin (starting dose 80 mg PO daily) or placebo. Dosing shall continue for 24-mo or until reaching a safety endpoint. EXPECTED OUTCOMES The trial is powered to detect an absolute difference of 20% in the mean percent change in lesional QSM per year (2-tailed, power 0.9, alpha 0.05). A decrease in QSM change would be a signal of potential benefit, and an increase would signal a safety concern with the drug. DISCUSSION With firm mechanistic rationale, rigorous preclinical discoveries, and biomarker validations, the trial shall explore a proof of concept effect of a widely used repurposed drug in stabilizing CAs after a symptomatic hemorrhage. This will be the first clinical trial of a drug aimed at altering rebleeding in CA.
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Affiliation(s)
- Sean P Polster
- Neurovascular Surgery Program, Section of Neurosurgery, Department of Surgery, University of Chicago Medicine and Biological Sciences, Chicago, Illinois
| | - Agnieszka Stadnik
- Neurovascular Surgery Program, Section of Neurosurgery, Department of Surgery, University of Chicago Medicine and Biological Sciences, Chicago, Illinois
| | | | - Ying Cao
- Neurovascular Surgery Program, Section of Neurosurgery, Department of Surgery, University of Chicago Medicine and Biological Sciences, Chicago, Illinois
| | - Gregory A Christoforidis
- Department of Diagnostic Radiology, The University of Chicago Medicine and Biological Sciences, Chicago, Illinois
| | - Maged D Fam
- Neurovascular Surgery Program, Section of Neurosurgery, Department of Surgery, University of Chicago Medicine and Biological Sciences, Chicago, Illinois
| | | | - Romuald Girard
- Neurovascular Surgery Program, Section of Neurosurgery, Department of Surgery, University of Chicago Medicine and Biological Sciences, Chicago, Illinois
| | - Nicholas Hobson
- Neurovascular Surgery Program, Section of Neurosurgery, Department of Surgery, University of Chicago Medicine and Biological Sciences, Chicago, Illinois
| | - James I Koenig
- National Institute of Neurological Disorders and Stroke, Bethesda, Maryland
| | - Janne Koskimäki
- Neurovascular Surgery Program, Section of Neurosurgery, Department of Surgery, University of Chicago Medicine and Biological Sciences, Chicago, Illinois
| | - Karen Lane
- Division of Brain Injury Outcomes, Department of Neurology, Johns Hopkins University Medical Institutions, Baltimore, Maryland
| | - James K Liao
- Section of Cardiology, Department of Medicine, The University of Chicago Medical Center, Illinois
| | | | - Seán B Lyne
- Neurovascular Surgery Program, Section of Neurosurgery, Department of Surgery, University of Chicago Medicine and Biological Sciences, Chicago, Illinois
| | - Nichol McBee
- National Institute of Neurological Disorders and Stroke, Bethesda, Maryland
| | - Leslie Morrison
- Department of Neurology, University of New Mexico, Albuquerque, New Mexico
| | - Kristina Piedad
- Neurovascular Surgery Program, Section of Neurosurgery, Department of Surgery, University of Chicago Medicine and Biological Sciences, Chicago, Illinois
| | - Robert Shenkar
- Neurovascular Surgery Program, Section of Neurosurgery, Department of Surgery, University of Chicago Medicine and Biological Sciences, Chicago, Illinois
| | - Matthew Sorrentino
- Section of Cardiology, Department of Medicine, The University of Chicago Medical Center, Illinois
| | - Richard E Thompson
- Division of Brain Injury Outcomes, Department of Neurology, Johns Hopkins University Medical Institutions, Baltimore, Maryland
| | - Kevin J Whitehead
- Department of Cardiovascular Medicine, University of Utah, Salt Lake City, Utah
| | - Hussein A Zeineddine
- Neurovascular Surgery Program, Section of Neurosurgery, Department of Surgery, University of Chicago Medicine and Biological Sciences, Chicago, Illinois
| | - Daniel F Hanley
- Division of Brain Injury Outcomes, Department of Neurology, Johns Hopkins University Medical Institutions, Baltimore, Maryland
| | - Issam A Awad
- Neurovascular Surgery Program, Section of Neurosurgery, Department of Surgery, University of Chicago Medicine and Biological Sciences, Chicago, Illinois
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