2023
Effects of delayed ambulation following posterior spinal fusion for adolescent idiopathic scoliosis: a single institutional study
Hengartner A, David W, Reeves B, Craft S, Boroumand S, Clappier M, Hansen J, Fernandez T, Koo A, Tuason D, DiLuna M, Elsamadicy A. Effects of delayed ambulation following posterior spinal fusion for adolescent idiopathic scoliosis: a single institutional study. Spine Deformity 2023, 11: 1127-1136. PMID: 37093449, DOI: 10.1007/s43390-023-00693-y.Peer-Reviewed Original ResearchConceptsPosterior spinal fusionAdolescent idiopathic scoliosisSpinal fusionPostoperative complicationsRisk factorsIdiopathic scoliosisMultivariate stepwise logistic regressionOral pain medicationTotal hospital lengthTwenty-nine patientsMethodsThe medical recordsSingle institutional studyStepwise logistic regressionMajor academic institutionHospital lengthHospital stayNine patientsPain medicationUnplanned readmissionIntraoperative variablesPatient demographicsPostoperative outcomesRBC transfusionHealthcare utilizationOperative time
2022
Hospital Frailty Risk Score Predicts Adverse Events and Readmission Following a Ventriculoperitoneal Shunt Surgery for Normal Pressure Hydrocephalus
Koo AB, Elsamadicy AA, Renedo D, Sarkozy M, Reeves BC, Barrows MM, Hengartner A, Havlik J, Sandhu MRS, Antonios JP, Malhotra A, Matouk CC. Hospital Frailty Risk Score Predicts Adverse Events and Readmission Following a Ventriculoperitoneal Shunt Surgery for Normal Pressure Hydrocephalus. World Neurosurgery 2022, 170: e9-e20. PMID: 35970293, DOI: 10.1016/j.wneu.2022.08.037.Peer-Reviewed Original ResearchConceptsHospital Frailty Risk ScoreFrailty Risk ScoreVP shunt surgeryVentriculoperitoneal shunt surgeryAdverse eventsShunt surgeryIndependent predictorsNPH patientsRisk scoreHealth care resource utilizationMultivariate logistic regression analysisNormal pressure hydrocephalus patientsRetrospective cohort studyNationwide Readmissions DatabaseNormal pressure hydrocephalusLogistic regression analysisRegression analysisMultivariate regression analysisUnplanned readmissionCohort studyHospital readmissionPressure hydrocephalusAdmission costsReadmissionHydrocephalus patientsAssessment of Frailty Indices and Charlson Comorbidity Index for Predicting Adverse Outcomes in Patients Undergoing Surgery for Spine Metastases: A National Database Analysis
Elsamadicy AA, Havlik JL, Reeves B, Sherman J, Koo AB, Pennington Z, Hersh AM, Sandhu MRS, Kolb L, Larry Lo SF, Shin JH, Mendel E, Sciubba DM. Assessment of Frailty Indices and Charlson Comorbidity Index for Predicting Adverse Outcomes in Patients Undergoing Surgery for Spine Metastases: A National Database Analysis. World Neurosurgery 2022, 164: e1058-e1070. PMID: 35644519, DOI: 10.1016/j.wneu.2022.05.101.Peer-Reviewed Original ResearchConceptsMetastatic spinal tumor frailty indexCharlson Comorbidity IndexFrailty indexMFI-5Adverse outcomesNonroutine dischargeComorbidity indexUnplanned readmissionAdverse eventsNational Surgical Quality Improvement Program databaseHigher Charlson comorbidity indexQuality Improvement Program databaseMultivariate logistic regression analysisPredicting Adverse OutcomesRetrospective cohort studyImprovement Program databaseNational database analysisLength of stayLogistic regression analysisExtradural spinal metastasisOnly significant predictorAdult patientsCohort studyProlonged lengthIndependent predictors356 Patient-and-Hospital-Related Risk Factors for Non-Routine Discharge After Lumbar Decompression and Fusion for Spondylolisthesis
Elsamadicy A, Freedman I, Koo A, David W, Hengartner A, Havlik J, Hersh A, Pennington Z, Kolb L, Laurans M, Shin J, Sciubba D. 356 Patient-and-Hospital-Related Risk Factors for Non-Routine Discharge After Lumbar Decompression and Fusion for Spondylolisthesis. Neurosurgery 2022, 68: 84-84. DOI: 10.1227/neu.0000000000001880_356.Peer-Reviewed Original ResearchNon-routine dischargeSurgeons National Surgical Quality Improvement Program databaseNational Surgical Quality Improvement Program databaseNon-Hispanic black race/ethnicityQuality Improvement Program databaseICD-9-CM diagnosisBlack race/ethnicityMultivariate logistic regression modelDependent functional statusImprovement Program databaseRetrospective cohort studyProcedural Coding SystemQuality of careMultivariate regression analysisPaucity of dataLogistic regression modelsRace/ethnicityUnplanned readmissionCohort studyDischarge dispositionReadmission ratesAdult patientsAdverse eventsIndependent predictorsLonger LOS
2021
Effects of preoperative nutritional status on complications and readmissions after posterior lumbar decompression and fusion for spondylolisthesis: A propensity-score analysis
Elsamadicy AA, Havlik J, Reeves BC, Koo AB, Sherman J, Lo SL, Shin JH, Sciubba DM. Effects of preoperative nutritional status on complications and readmissions after posterior lumbar decompression and fusion for spondylolisthesis: A propensity-score analysis. Clinical Neurology And Neurosurgery 2021, 211: 107017. PMID: 34781222, DOI: 10.1016/j.clineuro.2021.107017.Peer-Reviewed Original ResearchConceptsUnplanned readmissionAdverse eventsSpine surgerySurgeons National Surgical Quality Improvement Program databaseNational Surgical Quality Improvement Program databaseOccurrence of AEsPreoperative serum albumin levelQuality Improvement Program databaseMultivariate logistic regression analysisPosterior lumbar decompressionPreoperative nutritional statusHigh rateImprovement Program databaseRetrospective cohort studySerum albumin levelSignificant independent predictorsEffects of malnutritionLogistic regression analysisPropensity score analysisPropensity-score matchingMalnourished cohortMalnourished patientsPerioperative complicationsPostoperative complicationsLumbar decompressionPatient- and hospital-related risk factors for non-routine discharge after lumbar decompression and fusion for spondylolisthesis
Elsamadicy AA, Freedman IG, Koo AB, David W, Hengartner AC, Havlik J, Reeves BC, Hersh A, Pennington Z, Kolb L, Laurans M, Shin JH, Sciubba DM. Patient- and hospital-related risk factors for non-routine discharge after lumbar decompression and fusion for spondylolisthesis. Clinical Neurology And Neurosurgery 2021, 209: 106902. PMID: 34481141, DOI: 10.1016/j.clineuro.2021.106902.Peer-Reviewed Original ResearchConceptsNon-routine dischargeDependent functional statusAdverse eventsIndependent predictorsUnplanned readmissionLonger LOSSpinal decompressionLumbar spondylolisthesisFemale sexFunctional statusSurgeons National Surgical Quality Improvement Program databaseNational Surgical Quality Improvement Program databaseNon-Hispanic black race/ethnicityHospital-related risk factorsQuality Improvement Program databaseNon-Hispanic black raceICD-9-CM diagnosisBlack race/ethnicityMultivariate logistic regression modelNon-home dischargeHospital-related factorsImprovement Program databaseRetrospective cohort studyLength of stayProcedural Coding SystemDrivers of Readmission and Reoperation After Surgery for Vertebral Column Metastases
Patel J, Pennington Z, Hersh AM, Hung B, Schilling A, Antar A, Elsamadicy AA, de la Garza Ramos R, Lubelski D, Larry Lo SF, Sciubba DM. Drivers of Readmission and Reoperation After Surgery for Vertebral Column Metastases. World Neurosurgery 2021, 154: e806-e814. PMID: 34389529, DOI: 10.1016/j.wneu.2021.08.015.Peer-Reviewed Original ResearchConceptsCharlson Comorbidity IndexSpinal metastasis surgeryComprehensive cancer centerUnplanned reoperationMedical comorbiditiesMetastasis surgeryIndependent predictorsUnplanned readmissionWound infectionCancer CenterDrivers of readmissionsLonger index admissionsVertebral Column MetastasesBaseline laboratory valuesMultivariable logistic regressionLength of stayPopulation of adultsOutcomes of interestWound healing factorsComorbidity indexIndex admissionVenous thromboembolismLocal recurrenceSurgical morbidityMultivariable analysisModified-frailty index does not independently predict complications, hospital length of stay or 30-day readmission rates following posterior lumbar decompression and fusion for spondylolisthesis
Elsamadicy AA, Freedman IG, Koo AB, David WB, Reeves BC, Havlik J, Pennington Z, Kolb L, Shin JH, Sciubba DM. Modified-frailty index does not independently predict complications, hospital length of stay or 30-day readmission rates following posterior lumbar decompression and fusion for spondylolisthesis. The Spine Journal 2021, 21: 1812-1821. PMID: 34010683, DOI: 10.1016/j.spinee.2021.05.011.Peer-Reviewed Original ResearchConceptsUnplanned readmissionAdverse eventsLumbar spinal decompressionHospital lengthReadmission ratesIndependent predictorsSpinal decompressionNational Surgical Quality Improvement Program databaseQuality Improvement Program databasePosterior lumbar spinal fusionChronic obstructive pulmonary diseaseMultivariate logistic regression analysisICD-9-CM diagnosisDependent functional statusHypertension requiring medicationInferior surgical outcomesLonger hospital stayRetrospective cohort studyImprovement Program databaseCongestive heart failureObstructive pulmonary diseaseSurgical adverse eventsSignificant independent predictorsLumbar spinal fusionProcedural Coding SystemPatient Risk Factors Associated With 30- and 90-Day Readmission After Ventriculoperitoneal Shunt Placement for Idiopathic Normal Pressure Hydrocephalus in Elderly Patients: A Nationwide Readmission Study
Koo AB, Elsamadicy AA, Lin IH, David WB, Reeves BC, Santarosa C, Cord B, Malhotra A, Kahle KT, Matouk CC. Patient Risk Factors Associated With 30- and 90-Day Readmission After Ventriculoperitoneal Shunt Placement for Idiopathic Normal Pressure Hydrocephalus in Elderly Patients: A Nationwide Readmission Study. World Neurosurgery 2021, 152: e23-e31. PMID: 33862298, DOI: 10.1016/j.wneu.2021.04.010.Peer-Reviewed Original ResearchConceptsIdiopathic normal pressure hydrocephalusVP shunt surgeryShunt surgeryElderly patientsNormal pressure hydrocephalusPressure hydrocephalusNationwide Readmissions DatabaseVentriculoperitoneal shunt surgeryPatient risk factorsVentriculoperitoneal shunt placementQuality of careMultivariate regression analysisIndex admissionUnplanned readmissionReadmission ratesRenal failureMechanical complicationsPostoperative infectionShunt placementNinth RevisionFemale sexRisk factorsSubdural hemorrhageClinical ModificationReadmissionThe Effects of Pulmonary Risk Factors on Hospital Resource Use After Posterior Spinal Fusion for Adolescent Idiopathic Scoliosis Correction
Elsamadicy AA, Freedman IG, Koo AB, David WB, Havlik J, Kundishora AJ, Sciubba DM, Kahle KT, DiLuna M. The Effects of Pulmonary Risk Factors on Hospital Resource Use After Posterior Spinal Fusion for Adolescent Idiopathic Scoliosis Correction. World Neurosurgery 2021, 149: e737-e747. PMID: 33548534, DOI: 10.1016/j.wneu.2021.01.109.Peer-Reviewed Original ResearchConceptsPosterior spinal fusionAdolescent idiopathic scoliosisPreoperative pulmonary risk factorsPulmonary risk factorsLonger hospital stayRisk factorsUnplanned readmissionHospital stayDischarge dispositionSpinal fusionNational Surgical Quality Improvement Program Pediatric databaseSurgeons National Surgical Quality Improvement Program Pediatric databaseSignificant independent risk factorsAdolescent idiopathic scoliosis correctionRetrospective cohort studyIndependent risk factorHospital resource useLength of stayIdiopathic scoliosis correctionHigh rateLonger hospitalPostoperative complicationsCohort studyIntraoperative variablesPatient demographics
2020
Thirty- and 90-day Readmissions After Spinal Surgery for Spine Metastases
Elsamadicy AA, Koo AB, David WB, Zogg CK, Kundishora AJ, Hong CS, Kuzmik GA, Gorrepati R, Coutinho PO, Kolb L, Laurans M, Abbed K. Thirty- and 90-day Readmissions After Spinal Surgery for Spine Metastases. Spine 2020, 46: 828-835. PMID: 33394977, PMCID: PMC8278805, DOI: 10.1097/brs.0000000000003907.Peer-Reviewed Original ResearchConceptsSpine metastasesGenitourinary complicationsPostoperative infectionSpine surgeryRheumatoid arthritis/collagen vascular diseasesAcute post-hemorrhagic anemiaCollagen vascular diseaseRetrospective cohort studyUnplanned hospital readmissionNationwide Readmissions DatabasePatient-level factorsVulnerable patient groupSurgical treatment interventionMultivariate regression analysisFusion spine surgeryInpatient complicationsFrequent readmissionsUnplanned readmissionCohort studyRenal failureClinical factorsHospital readmissionSurgery typePatient groupVascular diseasePatient Risk Factors Associated With 30- and 90-Day Readmission After Cervical Discectomy
Elsamadicy AA, Koo AB, Lee M, Freedman IG, David WB, Kundishora AJ, Gorrepati R, Kuzmik GA, Camara-Quintana J, Qureshi T, Kolb L, Laurans M, Abbed K. Patient Risk Factors Associated With 30- and 90-Day Readmission After Cervical Discectomy. Clinical Spine Surgery A Spine Publication 2020, 33: e434-e441. PMID: 32568863, DOI: 10.1097/bsd.0000000000001030.Peer-Reviewed Original ResearchConceptsCervical disc arthroplastyLarge hospital bed sizeRetrospective cohort studyHospital bed sizeRisk factorsIndex admissionUnplanned readmissionCohort studyReadmission ratesAnterior cervical spine proceduresPatient-related risk factorsPatient-level risk factorsAnterior cervical decompressionCervical disc pathologyNationwide Readmissions DatabaseRate of readmissionCervical spine proceduresPatient risk factorsMultivariate regression analysisBed sizeCervical decompressionInitial hospitalizationCervical discectomyGenitourinary complicationsNinth Revision
2018
Independent Associations With 30- and 90-Day Unplanned Readmissions After Elective Lumbar Spine Surgery: A National Trend Analysis of 144 123 Patients.
Elsamadicy AA, Ren X, Kemeny H, Charalambous L, Sergesketter AR, Rahimpour S, Williamson T, Goodwin CR, Abd-El-Barr MM, Gottfried ON, Xie J, Lad SP. Independent Associations With 30- and 90-Day Unplanned Readmissions After Elective Lumbar Spine Surgery: A National Trend Analysis of 144 123 Patients. Neurosurgery 2018, 84: 758-767. PMID: 29893899, DOI: 10.1093/neuros/nyy215.Peer-Reviewed Original ResearchConceptsElective lumbar spine surgeryChronic obstructive pulmonary disorderLumbar spine surgeryNational Readmission DatabaseUnplanned hospital readmissionPatient risk factorsUnplanned readmissionHospital readmissionSpine surgeryDeficiency anemiaInsurance statusRisk factorsElective spinal surgeryUnplanned readmission rateObstructive pulmonary disorderMultivariate regression analysisPaucity of dataInpatient complicationsNational healthcare expendituresReadmission ratesDural tearPulmonary disordersIndependent associationPatient outcomesSpinal surgery
2017
Complications and 30-Day readmission rates after craniotomy/craniectomy: A single Institutional study of 243 consecutive patients
Elsamadicy AA, Sergesketter A, Adogwa O, Ongele M, Gottfried ON. Complications and 30-Day readmission rates after craniotomy/craniectomy: A single Institutional study of 243 consecutive patients. Journal Of Clinical Neuroscience 2017, 47: 178-182. PMID: 29031542, DOI: 10.1016/j.jocn.2017.09.021.Peer-Reviewed Original ResearchConceptsSensory/motor deficitsConsecutive patientsUnplanned readmissionReadmission ratesMotor deficitsMental statusPost-operative complication rateCommon presented symptomsHigher health care costsEarly hospital readmissionDays of dischargeCraniotomy/craniectomyHigher readmission ratesMajority of patientsSingle institutional studySkilled nursing facilitiesQuality of careHealth care costsHealth care dollarsMajor academic institutionComplication ratePatient demographicsSD ageCommon indicationHospital readmissionDrivers and Risk Factors of Unplanned 30‐Day Readmission Following Spinal Cord Stimulator Implantation
Elsamadicy AA, Sergesketter A, Ren X, Hussaini S, Laarakker A, Rahimpour S, Ejikeme T, Yang S, Pagadala P, Parente B, Xie J, Lad SP. Drivers and Risk Factors of Unplanned 30‐Day Readmission Following Spinal Cord Stimulator Implantation. Neuromodulation Technology At The Neural Interface 2017, 21: 87-92. PMID: 28961362, PMCID: PMC5766416, DOI: 10.1111/ner.12689.Peer-Reviewed Original ResearchConceptsSpinal cord stimulator implantationSCS implantationUnplanned readmissionIndependent predictorsPatient demographicsReadmission ratesMechanical complicationsStimulator implantationBaseline patient demographicsNational Readmission DatabaseReadmission statusNational healthcare expendituresPrimary outcomeHospital characteristicsRisk factorsPatient outcomesReadmissionMultivariate analysisPatientsSCS deviceHealthcare expendituresComorbiditiesImplantationComplicationsObesityEarly Ambulation Decreases Length of Hospital Stay, Perioperative Complications and Improves Functional Outcomes in Elderly Patients Undergoing Surgery for Correction of Adult Degenerative Scoliosis
Adogwa O, Elsamadicy AA, Fialkoff J, Cheng J, Karikari IO, Bagley C. Early Ambulation Decreases Length of Hospital Stay, Perioperative Complications and Improves Functional Outcomes in Elderly Patients Undergoing Surgery for Correction of Adult Degenerative Scoliosis. Spine 2017, 42: 1420-1425. PMID: 28902101, DOI: 10.1097/brs.0000000000002189.Peer-Reviewed Original ResearchConceptsAdult degenerative scoliosisElderly patientsPerioperative complicationsHospital stayUnplanned readmissionReadmission ratesComplication rateInhospital stayDegenerative scoliosisFunctional outcomeDays of immobilityHospital-associated complicationsDays of dischargeElective spinal surgeryHours of surgeryInferior functional outcomesMajority of patientsHigh complication rateEarly ambulationNonsurgical complicationsAmbispective studyBaseline characteristicsCohort reviewDecrease lengthEarly mobilization30-Day Readmission After Spine Surgery
Adogwa O, Elsamadicy AA, Han JL, Karikari IO, Cheng J, Bagley CA. 30-Day Readmission After Spine Surgery. Spine 2017, 42: 520-524. PMID: 28350632, DOI: 10.1097/brs.0000000000001779.Peer-Reviewed Original ResearchConceptsElective spine surgeryUnplanned readmissionSpine surgeryEarly readmissionHospital stayUnplanned early readmissionsCauses of readmissionDays of dischargeRetrospective cohort reviewMajority of patientsCommon primary reasonsPost-discharge careDuke University HospitalSkilled nursing facilitiesQuality of careNonsurgical complicationsRefractory painCohort reviewDischarge careLumbar decompressionSD ageEmergency departmentUniversity HospitalRisk factorsCommon causePost-operative delirium is an independent predictor of 30-day hospital readmission after spine surgery in the elderly (≥65years old): A study of 453 consecutive elderly spine surgery patients
Elsamadicy AA, Wang TY, Back AG, Lydon E, Reddy GB, Karikari IO, Gottfried ON. Post-operative delirium is an independent predictor of 30-day hospital readmission after spine surgery in the elderly (≥65years old): A study of 453 consecutive elderly spine surgery patients. Journal Of Clinical Neuroscience 2017, 41: 128-131. PMID: 28262398, DOI: 10.1016/j.jocn.2017.02.040.Peer-Reviewed Original ResearchConceptsPost-operative deliriumIndependent risk factorSpine surgeryElderly patientsReadmission ratesHospital readmissionRisk factorsDelirium patientsComplication rateIndependent predictorsPost-operative complication rateSuperficial surgical site infectionMultivariate logistic regression analysisDuke University Medical CenterConsecutive elderly patientsSpine surgery patientsSurgical site infectionLogistic regression analysisUniversity Medical CenterLower healthcare costsDSM-V criteriaHospital stayUnplanned readmissionPatient demographicsSurgery patients
2016
Racial Disparities in 30-Day Readmission Rates After Elective Spine Surgery
Adogwa O, Elsamadicy AA, Mehta AI, Cheng J, Bagley CA, Karikari IO. Racial Disparities in 30-Day Readmission Rates After Elective Spine Surgery. Spine 2016, 41: 1677-1682. PMID: 27054453, DOI: 10.1097/brs.0000000000001616.Peer-Reviewed Original ResearchConceptsElective spine surgerySpine surgeryReadmission ratesBlack patientsUnplanned readmissionIndependent predictorsWhite patientsOutcome measuresMultivariate logistic regression modelRacial disparitiesCauses of readmissionDays of dischargeRetrospective cohort reviewRisk-adjusted oddsHigher readmission ratesBody mass indexPost-discharge careMain outcome measuresMultivariate logistic regressionMajor academic medical centerAcademic medical centerLogistic regression modelsHospital stayNonsurgical complicationsBaseline characteristicsDrivers of 30-Day Readmission in Elderly Patients (>65 Years Old) After Spine Surgery: An Analysis of 500 Consecutive Spine Surgery Patients
Adogwa O, Elsamadicy AA, Han J, Karikari IO, Cheng J, Bagley CA. Drivers of 30-Day Readmission in Elderly Patients (>65 Years Old) After Spine Surgery: An Analysis of 500 Consecutive Spine Surgery Patients. World Neurosurgery 2016, 97: 518-522. PMID: 27474458, DOI: 10.1016/j.wneu.2016.07.032.Peer-Reviewed Original ResearchConceptsElective spine surgerySpine surgeryUnplanned readmissionEarly readmissionElderly patientsHospital stayConsecutive spine surgery patientsCauses of readmissionSpine surgery patientsDays of dischargeMajority of patientsCommon primary reasonsSkilled nursing facilitiesQuality of carePaucity of dataMajor academic hospitalNonsurgical complicationsSD ageSurgery patientsEmergency departmentMental statusAcademic hospitalCommon causeReadmissionNursing facilities