About
Titles
Hospital Resident
Biography
Dr. Koo is a resident in neurological surgery at Yale-New Haven Hospital. He received his undergraduate degree in Public Health and Biology from the University of North Carolina at Chapel Hill in 2015. He was a Colonel Robinson Scholar, and worked for the Health subcommittee of the U.S. House of Representatives Energy and Commerce Committee. He received his MD from the Yale School of Medicine, where he was awarded the NIH T35 Research grant, the Taylor Opportunity Research award, and the Heinrich Quincke Research Scholarship. His interest in health policy parallels his academic research where he examines healthcare utilization and cost and risk factors in neurosurgical care to improve clinical decision-making.
Appointments
Neurosurgery
Associate Research ScientistPrimary
Other Departments & Organizations
Education & Training
- MD
- Yale University, Doctor of Medicine (2020)
- BS (Hon)
- University of North Carolina at Chapel Hill, Public Health, Biology (2015)
Research
Research at a Glance
Yale Co-Authors
Frequent collaborators of Andrew Koo's published research.
Publications Timeline
A big-picture view of Andrew Koo's research output by year.
Aladine Elsamadicy, MD
John Havlik, MD, MBA
Charles Matouk, MD
Daniela Brenda Renedo, MD
Luis Kolb, MD
Maxwell Laurans, MD, MBA, FAANS
95Publications
665Citations
Publications
2024
Lumbocaval 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 ResearchConceptsIdiopathic 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 ResearchConceptsStudy-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 reviewIs 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 DOI: 10.1161/svin.124.001426.Peer-Reviewed Original ResearchAltmetricConceptsCause 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 compositionHigher 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 ResearchAltmetricConceptsIn-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 ResearchCitationsAltmetricConceptsExtracranial 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 ResearchAltmetricConceptsCentral 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 suite167 Association Between Safety-net Hospital Status and Postoperative Outcomes Following ACDF or PCDF for Cervical Spondylotic Myelopathy
Elsamadicy A, Sayeed S, Craft S, Sherman J, Reeves B, Koo A, Khalid S, Lo S, Shin J, Mendel E, Sciubba D. 167 Association Between Safety-net Hospital Status and Postoperative Outcomes Following ACDF or PCDF for Cervical Spondylotic Myelopathy. Neurosurgery 2024, 70: 40-40. DOI: 10.1227/neu.0000000000002809_167.Peer-Reviewed Original ResearchConceptsCervical spondylotic myelopathyNon-routine dischargeSafety-net hospital statusSafety-net hospitalACDF cohortSpondylotic myelopathyPostoperative outcomesAdverse eventsMultivariate analysisPosterior cervical decompressionAnterior cervical discectomyImpact postoperative outcomesProportion of patientsNational Inpatient Sample databaseRetrospective cohort studyPredictors of prolonged LOSInpatient Sample databaseNon-SNHsElective ACDFCervical decompressionCervical discectomyStudy patientsIndependent predictorsAdult patientsACDF306 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 ResearchConceptsRegulatory 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 development308 Improvement in Cranial Nerve Neuropathies Following Treatment of Intracranial Aneurysms With Flow Diverters: Institutional Outcomes and Meta-analysis of Literature
Sujijantarat N, Antonios J, Koo A, Haynes J, Renedo D, Hebert R, Sheth K, King J, Matouk C. 308 Improvement in Cranial Nerve Neuropathies Following Treatment of Intracranial Aneurysms With Flow Diverters: Institutional Outcomes and Meta-analysis of Literature. Neurosurgery 2024, 70: 89-89. DOI: 10.1227/neu.0000000000002809_308.Peer-Reviewed Original ResearchConceptsIntracranial aneurysmsPooled rateMeta-analysisCranial nervesRate of clinical improvementNear total occlusionAneurysms treated with flow diversionCranial nerve neuropathyMonths of presentationFlow diversionAssociated with symptomatic improvementRare presenting symptomSymptomatic intracranial aneurysmsRate of improvementTreatment of intracranial aneurysmsRandom-effects meta-analysisMeta-analysis of literatureEffects meta-analysisOphthalmological outcomesCN deficitsRetrospective reviewAssociated with improvementsClinical improvementNerve neuropathySymptomatic improvement
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