Shiwani Mahajan, MBBS, MHS
Clinical FellowAbout
Research
Publications
2025
Isolated subsegmental pulmonary embolism identification based on international classification of diseases (ICD)-10 codes and imaging reports
Rashedi S, Bejjani A, Hunsaker A, Aghayev A, Khairani C, McGonagle B, Lo Y, Mahajan S, Caraballo C, Jimenez J, Krishnathasan D, Zarghami M, Monreal M, Barco S, Secemsky E, Klok F, Muriel A, Hussain M, Appah-Sampong A, Rahaghi F, Sadeghipour P, Lin Z, Mojibian H, Aneja S, Konstantinides S, Goldhaber S, Wang L, Zhou L, Jimenez D, Krumholz H, Piazza G, Bikdeli B, Investigators T. Isolated subsegmental pulmonary embolism identification based on international classification of diseases (ICD)-10 codes and imaging reports. Thrombosis Research 2025, 247: 109271. PMID: 39862754, DOI: 10.1016/j.thromres.2025.109271.Peer-Reviewed Original ResearchInternational Classification of Diseases (ICD)-10 codesICD-10International ClassificationPositive predictive valueDischarge diagnosisAccuracy of ICD-10Radiology reportsPrincipal discharge diagnosisSecondary discharge diagnosisIsolated subsegmental pulmonary embolismMedical records of adult patientsHealth systemRecords of adult patientsPredictive valueBlinded re-evaluationExpert radiologistsSubsegmental pulmonary embolismQuality improvementMedical recordsChart reviewPresence of PEProximal PEPulmonary embolismAdult patientsImaging Reporting
2024
Validating International Classification of Diseases Code 10th Revision algorithms for accurate identification of pulmonary embolism
Bikdeli B, Khairani C, Bejjani A, Lo Y, Mahajan S, Caraballo C, Jimenez J, Krishnathasan D, Zarghami M, Rashedi S, Jimenez D, Barco S, Secemsky E, Klok F, Hunsaker A, Aghayev A, Muriel A, Hussain M, Appah-Sampong A, Lu Y, Lin Z, Mojibian H, Aneja S, Khera R, Konstantinides S, Goldhaber S, Wang L, Zhou L, Monreal M, Piazza G, Krumholz H, Investigators P. Validating International Classification of Diseases Code 10th Revision algorithms for accurate identification of pulmonary embolism. Journal Of Thrombosis And Haemostasis 2024, 23: 556-564. PMID: 39505153, DOI: 10.1016/j.jtha.2024.10.013.Peer-Reviewed Original ResearchDischarge codesInternational ClassificationICD-10Yale New Haven Health SystemPositive predictive valueMass General Brigham hospitalsAccuracy of ICD-10ICD-10 codesPulmonary embolismHealth systemImage codingElectronic databasesF1 scorePre-specified protocolExcellent positive predictive valueIndependent physiciansHighest F1 scoreIdentification of pulmonary embolismAcute pulmonary embolismSecondary codePE codesScoresIdentified PERevised algorithmGender disparities in utilization of statins for low density lipoprotein management across the spectrum of atherosclerotic cardiovascular disease: Insights from the houston methodist cardiovascular disease learning health system registry
Shahid I, Satish P, Gullapelli R, Nicholas J, Javed Z, Avenatti E, Bose B, Mahajan S, Roy T, Sharma G, Rodriguez F, Andrieni J, Jones S, Al-Kindi S, Cainzos-Achirica M, Nasir K. Gender disparities in utilization of statins for low density lipoprotein management across the spectrum of atherosclerotic cardiovascular disease: Insights from the houston methodist cardiovascular disease learning health system registry. American Journal Of Preventive Cardiology 2024, 19: 100722. PMID: 39281350, PMCID: PMC11402022, DOI: 10.1016/j.ajpc.2024.100722.Peer-Reviewed Original ResearchHigh-intensity statinsRacial/ethnic subgroupsSystem registryStatin utilizationLDL-CHigh-intensity statin useGender disparitiesSocioeconomic risk factorsLDL-C managementUS healthcare systemMultivariate logistic regression analysisLDL-C goalsLDL-C <Utilization of statinsAtherosclerotic cardiovascular diseaseLogistic regression analysisSocioeconomic subgroupsHealthcare systemStatin uptakeStatin useAdult patientsLipid managementLipoprotein managementStatinsSignificant gender disparityOPTIMIZING PHENOTYPING ALGORITHMS FOR IDENTIFYING PULMONARY EMBOLISM IN ELECTRONIC DATABASES: THE MULTICENTER PE-EHR+ STUDY
Bikdeli B, Bejjani A, Lo Y, Khairani C, Mahajan S, Secemsky E, Jimenez J, Aghayev A, Hunsaker A, Wang L, Hussain M, Appah-Sampong A, Mojibian H, Lin Z, Aneja S, Barco S, Klok F, Konstantinides S, Zhou L, Monreal M, Jimenez D, Piazza G, Krumholz H. OPTIMIZING PHENOTYPING ALGORITHMS FOR IDENTIFYING PULMONARY EMBOLISM IN ELECTRONIC DATABASES: THE MULTICENTER PE-EHR+ STUDY. Journal Of The American College Of Cardiology 2024, 83: 2108. DOI: 10.1016/s0735-1097(24)04098-1.Peer-Reviewed Original ResearchAssociation of marital/partner status with hospital readmission among young adults with acute myocardial infarction.
Zhu C, Dreyer R, Li F, Spatz E, Caraballo C, Mahajan S, Raparelli V, Leifheit E, Lu Y, Krumholz H, Spertus J, D'Onofrio G, Pilote L, Lichtman J. Association of marital/partner status with hospital readmission among young adults with acute myocardial infarction. PLOS ONE 2024, 19: e0287949. PMID: 38277368, PMCID: PMC10817183, DOI: 10.1371/journal.pone.0287949.Peer-Reviewed Original ResearchConceptsMarital/partner statusPsychosocial factorsAcute myocardial infarctionYoung adultsHospital dischargeYear of hospital dischargeYoung acute myocardial infarctionAssociated with 1.3-foldCohort of young adultsLong-term readmissionCox proportional hazards modelsStatus interactionSimilar-aged menMyocardial infarctionProportional hazards modelUnpartnered statusPatient interviewsPhysician panelCardiovascular healthHospital readmissionSocioeconomic factorsAMI survivorsSequential adjustmentCardiac readmissionMultiple imputation
2023
National Trends in Racial and Ethnic Disparities in Use of Recommended Therapies in Adults with Atherosclerotic Cardiovascular Disease, 1999-2020
Lu Y, Liu Y, Dhingra L, Caraballo C, Mahajan S, Massey D, Spatz E, Sharma R, Rodriguez F, Watson K, Masoudi F, Krumholz H. National Trends in Racial and Ethnic Disparities in Use of Recommended Therapies in Adults with Atherosclerotic Cardiovascular Disease, 1999-2020. JAMA Network Open 2023, 6: e2345964. PMID: 38039001, PMCID: PMC10692850, DOI: 10.1001/jamanetworkopen.2023.45964.Peer-Reviewed Original ResearchConceptsAtherosclerotic cardiovascular diseaseHistory of ASCVDCross-sectional studyLifestyle modificationPharmacological medicationsOptimal careCurrent careUS adultsEthnic differencesWhite individualsGuideline-recommended therapiesTotal cholesterol controlNon-Hispanic white individualsNutrition Examination SurveyLatino individualsQuality of careSelf-reported raceStatin useRecommended TherapiesSecondary preventionCholesterol controlOptimal regimensSmoking cessationEligible participantsExamination SurveySex‐Specific Associations of Obstructive Sleep Apnea Risk With Patient Characteristics and Functional Outcomes After Acute Myocardial Infarction: Evidence From the VIRGO Study
Gupta A, Barthel A, Mahajan S, Dreyer R, Yaggi H, Bueno H, Lichtman J, Krumholz H. Sex‐Specific Associations of Obstructive Sleep Apnea Risk With Patient Characteristics and Functional Outcomes After Acute Myocardial Infarction: Evidence From the VIRGO Study. Journal Of The American Heart Association 2023, 12: e027225. PMID: 37702090, PMCID: PMC10547292, DOI: 10.1161/jaha.122.027225.Peer-Reviewed Original ResearchConceptsObstructive sleep apneaAcute myocardial infarctionHigh OSA riskOSA riskSex-specific associationsFunctional outcomeHealth statusHigh riskVIRGO StudyMyocardial infarctionDepressive symptomsHistory of OSATime of AMIImpact of OSAObstructive sleep apnea riskLow-risk patientsSleep apnea riskMajority of patientsTime of presentationSex-specific outcomesWorse health statusHigh-risk menPoor health statusMental health statusPoor health outcomesImpact of Marital Stress on 1‐Year Health Outcomes Among Young Adults With Acute Myocardial Infarction
Zhu C, Dreyer R, Li F, Spatz E, Caraballo‐Cordovez C, Mahajan S, Raparelli V, Leifheit E, Lu Y, Krumholz H, Spertus J, D'Onofrio G, Pilote L, Lichtman J. Impact of Marital Stress on 1‐Year Health Outcomes Among Young Adults With Acute Myocardial Infarction. Journal Of The American Heart Association 2023, 12: e030031. PMID: 37589125, PMCID: PMC10547344, DOI: 10.1161/jaha.123.030031.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionCardiac-specific qualityGeneric health statusMyocardial infarctionBaseline healthMarital stressHealth outcomesHealth statusWorse patient-reported outcomesMental healthYoung adultsObservational cohort studyPatient-reported outcomesSocioeconomic factorsWorse mental healthReadmission 1Cause readmissionCohort studyYounger patientsRoutine screeningDepressive symptomsGreater oddsAnginaMale participantsOutcomesPatterns of Digoxin Prescribing for Medicare Beneficiaries in the United States 2013-2019
See C, Wheelock K, Caraballo C, Khera R, Annapureddy A, Mahajan S, Lu Y, Krumholz H, Murugiah K. Patterns of Digoxin Prescribing for Medicare Beneficiaries in the United States 2013-2019. American Journal Of Medicine Open 2023, 10: 100048. PMID: 38213879, PMCID: PMC10783702, DOI: 10.1016/j.ajmo.2023.100048.Peer-Reviewed Original ResearchDigoxin prescriptionDigoxin useNew heart failure therapiesGeneral medicine physiciansHeart failure therapyMedicare Part D dataPart D dataDigoxin prescribingFailure therapyPrescriber characteristicsMedicine physiciansMedicare beneficiariesPrescribersLikely maleLogistic regressionDigoxinNew prescribersPrescriptionRecent dataCardiologySex Difference in Outcomes of Acute Myocardial Infarction in Young Patients
Sawano M, Lu Y, Caraballo C, Mahajan S, Dreyer R, Lichtman J, D'Onofrio G, Spatz E, Khera R, Onuma O, Murugiah K, Spertus J, Krumholz H. Sex Difference in Outcomes of Acute Myocardial Infarction in Young Patients. Journal Of The American College Of Cardiology 2023, 81: 1797-1806. PMID: 37137590, DOI: 10.1016/j.jacc.2023.03.383.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionNoncardiac hospitalizationsSubdistribution HRYounger patientsMyocardial infarctionSex differencesYoung womenCause-specific hospitalizationsCause of hospitalizationWorse health statusSignificant sex disparityNoncardiovascular hospitalizationsVIRGO StudyIndex episodeAdverse outcomesIncidence rateHospitalizationHigh riskSex disparitiesHealth statusPatientsU.S. hospitalsWomenInfarctionOutcomes
News
News
- August 14, 2024
Welcome New Staff, Faculty, Fellows, Postgrads & Postdocs (August 2024)
- March 05, 2023
Enhancing Treatment for Persistent Hypertension: Unleashing the Power of Actionable Taxonomy from EHR Data for Precision Medicine
- January 18, 2023
Inpatient blood draws are often performed during sleep hours, Yale study finds
- December 18, 2022
Yale Insights in Cardiovascular Medicine: 2022