Ryan M Hebert, MD
Assistant Professor of NeurosurgeryCards
About
Research
Publications
2024
Is Clot Composition Associated With Cause of Stroke? A Systematic Review and Meta‐Analysis
Sujijantarat N, Templeton K, Antonios J, Renedo D, Koo A, Haynes J, Fathima B, Amllay A, Nowicki K, Huttner A, Giles J, Navaratnam D, Sansing L, Hebert R, King J, Matouk C. Is Clot Composition Associated With Cause of Stroke? A Systematic Review and Meta‐Analysis. Stroke Vascular And Interventional Neurology 2024, 4 DOI: 10.1161/svin.124.001426.Peer-Reviewed Original ResearchCause of strokeRed blood cellsWhite blood cellsBlood cellsMechanical thrombectomyCardioembolic groupHistological compositionMeta-analysisLow red blood cellQuantity of red blood cellsRandom-effects meta-analysisAcute ischemic strokeEffects meta-analysisEnglish-language articlesMean percentage differenceAdult patientsMEDLINE databaseCochrane LibraryClinical utilityIschemic strokeLanguage articlesPatientsPercentage differenceArteryCellular compositionSubarachnoid Hemorrhage
Wilson S, Hebert R. Subarachnoid Hemorrhage. 2024, 339-358. DOI: 10.1007/978-3-031-66289-8_29.Peer-Reviewed Original ResearchLumbocaval Shunt for Idiopathic Intracranial Hypertension: A Technical Report and Case Series
Sujijantarat N, Koo A, Elsamadicy A, Antonios J, Renedo D, Haynes J, Fathima B, Theriault B, Chavez M, Amllay A, Nowicki K, Kanzler M, Jiang J, Shekar A, Hebert R, DiLuna M, Matouk C. Lumbocaval Shunt for Idiopathic Intracranial Hypertension: A Technical Report and Case Series. Neurosurgery Open 2024, 5: e00113. DOI: 10.1227/neuprac.0000000000000113.Peer-Reviewed Original ResearchIdiopathic intracranial hypertensionIntracranial hypertensionTreatment of idiopathic intracranial hypertensionManagement of idiopathic intracranial hypertensionMedical records of patientsAssessment of long-term outcomesHigh-pressure headachesMedian operative timeDifficult-to-manage patientsLow-pressure headacheCerebrospinal fluid shuntsElectronic medical records of patientsRecords of patientsFollow-up visitLong-term outcomesLumbar shuntDifficult-to-manage casesIntraoperative complicationsShunt revisionImprove headacheCase seriesEarly outcomesSurgical techniqueNeurosurgical managementOperative timeImprovement in cranial nerve palsies following treatment of intracranial aneurysms with flow diverters: Institutional outcomes, systematic review and study-level meta-analysis
Sujijantarat N, Antonios J, Renedo D, Koo A, Haynes J, Fathima B, Jiang J, Hengartner A, Shekhar A, Amllay A, Nowicki K, Hebert R, Gilmore E, Sheth K, King J, Matouk C. Improvement in cranial nerve palsies following treatment of intracranial aneurysms with flow diverters: Institutional outcomes, systematic review and study-level meta-analysis. Clinical Neurology And Neurosurgery 2024, 246: 108555. PMID: 39357321, DOI: 10.1016/j.clineuro.2024.108555.Peer-Reviewed Original ResearchStudy-level meta-analysisRate of improvementCN deficitsMeta-analysisIntracranial aneurysmsCN palsySystematic reviewFactors associated with recoveryPooled rateRandom-effects meta-analysisCranial nervesManual citation searchingEffects meta-analysisRate of clinical improvementCranial nerve palsyMechanism of injuryIncreased rate of improvementFlow diversionRare presenting symptomSymptomatic intracranial aneurysmsTreatment of intracranial aneurysmsCitation searchingPalsyNerve palsyRetrospective reviewHigher proceduralist stroke thrombectomy volume is associated with reduced inpatient mortality
Koo A, Renedo D, Ney J, Amllay A, Kanzler M, Stogniy S, Alawieh A, Sujijantarat N, Antonios J, Al Kasab S, Malhotra A, Hebert R, Matouk C, de Havenon A. Higher proceduralist stroke thrombectomy volume is associated with reduced inpatient mortality. Journal Of NeuroInterventional Surgery 2024, jnis-2024-022021. PMID: 39214687, DOI: 10.1136/jnis-2024-022021.Peer-Reviewed Original ResearchIn-hospital deathIn-hospital mortalityAcute ischemic strokeCut-pointsAbsolute risk of deathAssociated with lower oddsState Inpatient DatabasesFlorida State Inpatient DatabaseIn-hospital moralityRates of in-hospital mortalityDiagnosis of acute ischemic strokePrimary study outcomeRisk of deathStroke careOptimal cut-pointAssociated with reduced inpatient mortalityEndovascular thrombectomyRetrospective cohort studyLower oddsPotential confoundersAbsolute riskAcute ischemic stroke patientsInpatient mortalityCohort studyInpatient DatabaseO-035 Higher endovascular thrombectomy procedural volume is associated with reduced inpatient mortality
Koo A, Renedo D, Ney J, Amllay A, Kanzler M, Stogniy S, Nowicki K, Alawieh A, Sujijantarat N, Antonios J, Al Kasab S, Hebert R, Matouk C, de Havenon A. O-035 Higher endovascular thrombectomy procedural volume is associated with reduced inpatient mortality. 2024, a27.2-a28. DOI: 10.1136/jnis-2024-snis.35.Peer-Reviewed Original ResearchUse of a dedicated open transcarotid access system for neurovascular disease
Sujijantarat N, Renedo D, Antonios J, Koo A, Amllay A, Nowicki K, Cord B, Hebert R, de Havenon A, Sheth K, Petersen N, Matouk C. Use of a dedicated open transcarotid access system for neurovascular disease. Journal Of NeuroInterventional Surgery 2024, jnis-2024-021599. PMID: 38719442, DOI: 10.1136/jnis-2024-021599.Peer-Reviewed Original ResearchExtracranial carotid stenosisTranscarotid artery revascularizationNeurovascular diseasesCarotid stenosisDatabase of consecutive patientsNeurovascular pathologyTreatment of neurovascular diseasesAccess-related complicationsTreatment of neurovascular pathologiesOff-label useCarotid flow reversalConsecutive patientsRetrospective reviewIntracranial atherosclerotic diseasePeriprocedural complicationsEndovascular treatmentArtery revascularizationProcedural characteristicsArterial sheathCarotid diseaseAcademic centersIntracranial aneurysmsPatientsTranscarotid approachTransradial approachAngiographic evidence of an inadvertent cannulation of the marginal sinus following central line migration: illustrative case
Amllay A, Owolo E, Nowicki K, Sujijantarat N, Koo A, Antonios J, Renedo D, Matouk C, Hebert R. Angiographic evidence of an inadvertent cannulation of the marginal sinus following central line migration: illustrative case. Journal Of Neurosurgery Case Lessons 2024, 7: case23607. PMID: 38684119, PMCID: PMC11058405, DOI: 10.3171/case23607.Peer-Reviewed Original ResearchCentral venous catheterInternal jugular veinCatheter tip migrationTip migrationMalpositioned cathetersAbsence of contrast extravasationSinus cannulationTriple-lumen central venous catheterAortic valve replacementInadvertent cannulationCatheter malpositionContrast extravasationValve replacementSigmoid sinusImprove patient outcomesPosterior fossaEndovascular managementSevere complicationsVenous cathetersWeeks postinsertionPrompt managementAngiographic evidenceCatheter exchangeReduce morbidityInterventional suiteAssessing Effects of Intrathecal Nicardipine on Cerebral Autoregulation and Cortical Activity in Aneurysmal Subarachnoid Hemorrhage (P10-5.019)
Jayasundara S, Kim J, Choi R, Rapuano A, Barnes E, Parasram M, Moura M, Uppal P, Chen Y, Top I, Olexa M, Maarek R, Yan J, Beekman R, Magid-Bernstein J, Hebert R, Bahrassa F, Matouk C, Sheth K, Gilmore E, Petersen N. Assessing Effects of Intrathecal Nicardipine on Cerebral Autoregulation and Cortical Activity in Aneurysmal Subarachnoid Hemorrhage (P10-5.019). Neurology 2024, 102 DOI: 10.1212/wnl.0000000000206285.Peer-Reviewed Original Research306 Endothelial Infiltrating Regulatory B Cells and NK T Cells Precipitate Inflammatory Cascade That Leads to Aneurysmal Rupture
Antonios J, Barak T, Gultekin B, Yalcin K, Adenu-Mensah N, Sujijantarat N, Koo A, Haynes J, Hebert R, Matouk C, Gunel M. 306 Endothelial Infiltrating Regulatory B Cells and NK T Cells Precipitate Inflammatory Cascade That Leads to Aneurysmal Rupture. Neurosurgery 2024, 70: 88-89. DOI: 10.1227/neu.0000000000002809_306.Peer-Reviewed Original ResearchRegulatory B cellsB cellsSentinel hemorrhageNK cellsInflammatory cascadeCytotoxic CD8 T cellsRecruitment of NK cellsCD8 T cellsAdjunctive immune therapyEndovascular coil embolizationCoordinated immune responseIntracranial aneurysm developmentImmune therapyRecurrent aneurysmsAneurysmal vessel wallT cellsCoil embolizationRuptured aneurysmsTime of ruptureAneurysm ruptureUnruptured aneurysmsInfiltrating populationPatient populationImmune responseAneurysm development
Clinical Trials
Current Trials
EvaLuate EndoVascular Treatment of Acutely Ruptured Shallow Intradural Aneurysms With the Pipeline™ Flex Embolization Device With Shield TEchnology™ (ELEVATE)
HIC ID2000029272RoleSub InvestigatorPrimary Completion Date02/28/2023Recruiting ParticipantsGenderBothAge22 years - 80 years
Academic Achievements & Community Involvement
Clinical Care
Overview
Ryan Hebert, MD, is a fellowship-trained neurosurgeon specializing in the diagnosis and treatment of neurovascular disorders. He is a specialist in both open and endovascular treatment of intracranial aneurysms, arteriovenous malformations, carotid disease, and dural arteriovenous fistulas of the brain and spine. He is a specialist in interventions for the treatment of ischemic and hemorrhagic stroke. In addition to operative and ICU treatment of cerebrovascular disease, Dr. Hebert has extensive training in the treatment of brain tumors, brain and spine trauma, and open and minimally invasive spine surgery.
Dr. Hebert was born in the New Orleans, La., metropolitan area. He attended the University of Colorado – Boulder where he attained a bachelor’s degree in Molecular, Cellular, and Developmental Biology. He was awarded a Howard Hughes Undergraduate research grant for his work on the role of brain-derived neurotrophic factor in neocortical development in mice. He attended the Yale School of Medicine where his NIH-funded thesis work focused on the function of CCM3 in cerebral cavernous malformations.
After medical school, Dr. Hebert completed 7 years of residency training at Yale New Haven Hospital in Neurosurgery. During this time, he received extensive training in brain and spine surgery. In addition, Dr. Hebert spent dedicated residency time training in neuro-interventional techniques as an enfolded fellow. After residency, he completed a CAST-accredited fellowship in Endovascular Neurosurgery and Neurovascular Critical Care at Thomas Jefferson University Hospital in Philadelphia, Pa., where he learned the latest techniques in treating intracranial aneurysms, arteriovenous malformations of the brain and spine, and carotid disease.
Dr. Hebert’s research interest include emerging techniques for treating intracranial aneurysm and arteriovenous malformations, risk stratification and treatment of symptomatic and asymptomatic carotid disease, predictors and treatment of vasospasm in aneurysmal subarachnoid hemorrhage, and outcomes after minimally invasive spine surgery.
Dr. Hebert practices at Yale New Haven and Lawrence and Memorial Hospitals. He lives in Branford, Conn., with his wife, who is a doctor of nursing practice.
Clinical Specialties
Fact Sheets
Vascular Surgery
Learn More on Yale MedicineHereditary Hemorrhagic Telangiectasia (HHT)
Learn More on Yale MedicineEndovascular Brain Surgery
Learn More on Yale MedicineCarotid Artery Disease Imaging
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Board Certifications
Neurological Surgery
- Certification Organization
- AB of Neurological Surgery
- Original Certification Date
- 2020
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