2024
How to Use Quasi-Experimental Methods in Cardiovascular Research: A Review of Current Practice
Carter A, Jayawardana S, Costa-Font J, Nasir K, Krumholz H, Mossialos E. How to Use Quasi-Experimental Methods in Cardiovascular Research: A Review of Current Practice. Circulation Cardiovascular Quality And Outcomes 2024, 17: e010078. PMID: 38362765, DOI: 10.1161/circoutcomes.123.010078.Peer-Reviewed Original ResearchConceptsRandomized controlled trialsDecision aidJoanna Briggs Institute checklistControlled trialsQuasi-experimental methodObservational studyInterrupted time series analysisQuasi-experimental studyDifference-in-differences analysisEstimate causal relationshipsSystematic search strategyInstrumental variable analysisQuality appraisalInstitute checklistInclusion criteriaGraphical decision aidReview of current practicesCurrent practicesRandom assignmentSearch strategyHigh-impact articlesVariability analysisTime series analysisCardiovascular researchAIDSImpaired mobility and MRI markers of vascular brain injury: Atherosclerosis Risk in Communities and UK Biobank studies
Sharma R, de Havenon A, Rivier C, Payabvash S, Forman R, Krumholz H, Falcone G, Sheth K, Kernan W. Impaired mobility and MRI markers of vascular brain injury: Atherosclerosis Risk in Communities and UK Biobank studies. BMJ Neurology Open 2024, 6: e000501. PMID: 38288313, PMCID: PMC10823923, DOI: 10.1136/bmjno-2023-000501.Peer-Reviewed Original ResearchVascular brain injurySlow walkingAtherosclerosis RiskMobility impairmentsAssociated with mobility impairmentImpaired mobilityUK Biobank (UKBStroke-free cohortMarkers of vascular brain injuryAdjusted multivariate logistic regression analysisGait dataMultivariate logistic regression analysisCommunity-dwellingLogistic regression analysisBrain injuryARICUKBInclusion criteriaStudy cohortWalkingClinical strokeRegression analysisImpaired outcomeMRI markersStudy background
2019
Characterizing Patient‐Centered Postoperative Recovery After Adult Cardiac Surgery: A Systematic Review
Mori M, Angraal S, Chaudhry SI, Suter LG, Geirsson A, Wallach JD, Krumholz HM. Characterizing Patient‐Centered Postoperative Recovery After Adult Cardiac Surgery: A Systematic Review. Journal Of The American Heart Association 2019, 8: e013546. PMID: 31617435, PMCID: PMC6898802, DOI: 10.1161/jaha.119.013546.Peer-Reviewed Original ResearchConceptsPatient-reported outcome measuresPostoperative patient-reported outcome measuresAdult cardiac surgeryPostoperative recoveryOutcome measuresCardiac surgerySystematic reviewCoronary artery bypass graftSingle-center settingArtery bypass graftQuality of evidenceWeb of ScienceNociceptive symptomsDiversity of patientsLess comorbidityAdult patientsBypass graftPhysical functionPostacute careElective casesInclusion criteriaDaily livingPatientsStudy participantsCognitive functionSubmissions from the SPRINT Data Analysis Challenge on clinical risk prediction: a cross-sectional evaluation
Jackevicius CA, An J, Ko DT, Ross JS, Angraal S, Wallach JD, Koh M, Song J, Krumholz HM. Submissions from the SPRINT Data Analysis Challenge on clinical risk prediction: a cross-sectional evaluation. BMJ Open 2019, 9: e025936. PMID: 30904868, PMCID: PMC6475140, DOI: 10.1136/bmjopen-2018-025936.Peer-Reviewed Original ResearchConceptsRisk prediction toolsCross-sectional evaluationClinical risk predictionClinical performanceCardiovascular disease historyClinical risk scoreHigh-risk patientsLow-risk patientsClinical prediction toolRisk predictionEfficacy outcomesC-statisticDisease historyInclusion criteriaIndependent reviewersRisk scoreExternal validationPatientsPrediction toolsEfficacyOutcomesSame outcome
2018
Rationale, Design and Methodology of the Computerized Registry of Patients with Venous Thromboembolism (RIETE)
Bikdeli B, Jimenez D, Hawkins M, Ortíz S, Prandoni P, Brenner B, Decousus H, Masoudi FA, Trujillo-Santos J, Krumholz HM, Monreal M. Rationale, Design and Methodology of the Computerized Registry of Patients with Venous Thromboembolism (RIETE). Thrombosis And Haemostasis 2018, 118: 214-224. PMID: 29304541, PMCID: PMC5821113, DOI: 10.1160/th17-07-0511.Peer-Reviewed Original ResearchMeSH KeywordsAnticoagulantsCardiologyCause of DeathFemaleFollow-Up StudiesHemorrhageHumansInternational CooperationIschemiaPregnancyPregnancy Complications, CardiovascularProspective StudiesPuerperal DisordersPulmonary EmbolismRecurrenceRegistriesResearch DesignTreatment OutcomeVena Cava FiltersVenous ThromboembolismConceptsOutcomes of patientsVenous thromboembolismDeep vein thrombosisPulmonary embolismOngoing registryClinical trialsOutcomes of VTEPragmatic comparative effectiveness studyLong-term outcome dataUnstable pulmonary embolismPattern of presentationPatterns of carePrevalent vascular diseaseComparative effectiveness studiesHospital deathVein thrombosisVenous thrombosisPreventable causeComputerized registryVascular diseaseRIETEInclusion criteriaThrombotic conditionsOutcome dataPatients
2017
Comparison of two independent systematic reviews of trials of recombinant human bone morphogenetic protein-2 (rhBMP-2): the Yale Open Data Access Medtronic Project
Low J, Ross JS, Ritchie JD, Gross CP, Lehman R, Lin H, Fu R, Stewart LA, Krumholz HM. Comparison of two independent systematic reviews of trials of recombinant human bone morphogenetic protein-2 (rhBMP-2): the Yale Open Data Access Medtronic Project. Systematic Reviews 2017, 6: 28. PMID: 28196521, PMCID: PMC5310069, DOI: 10.1186/s13643-017-0422-x.Peer-Reviewed Original ResearchConceptsParticipant-level dataSystematic reviewSummary estimatesRecombinant human bone morphogenetic protein-2Inclusion criteriaCenter BIndividual participant-level dataMeta-analysis inclusion criteriaHuman bone morphogenetic protein-2Trial inclusion criteriaMulti-site clinical trialMain outcome measuresMost clinical outcomesStatistical methodsConcurrent systematic reviewIndependent systematic reviewsProtein 2Bone morphogenetic protein-2Summary efficacyMorphogenetic protein-2Adverse eventsClinical outcomesSurgical approachTrial inclusionClinical trials
2008
Statistical Models and Patient Predictors of Readmission for Heart Failure: A Systematic Review
Ross JS, Mulvey GK, Stauffer B, Patlolla V, Bernheim SM, Keenan PS, Krumholz HM. Statistical Models and Patient Predictors of Readmission for Heart Failure: A Systematic Review. JAMA Internal Medicine 2008, 168: 1371-1386. PMID: 18625917, DOI: 10.1001/archinte.168.13.1371.Peer-Reviewed Original ResearchMeSH KeywordsDisease ProgressionEvidence-Based MedicineFemaleHeart FailureHospitalizationHumansIncidenceMaleModels, StatisticalPatient ReadmissionPredictive Value of TestsProportional Hazards ModelsQuality-Adjusted Life YearsRisk FactorsSensitivity and SpecificitySeverity of Illness IndexSurvival AnalysisUnited StatesConceptsPatient characteristicsPatient readmission riskReadmission riskPatient riskSystematic reviewReadmission ratesHospital ratesOvid Evidence-Based Medicine ReviewsEligible English-language publicationsEvidence-Based Medicine ReviewsHeart failure hospitalizationPatient risk stratificationEnglish-language literatureEnglish-language publicationsFailure hospitalizationHF hospitalizationAdult patientsHeart failureHospital readmissionMedicine ReviewsRisk stratificationPatient predictorsInclusion criteriaReadmissionCombined outcomeAn early invasive strategy versus ischemia-guided management after fibrinolytic therapy for ST-segment elevation myocardial infarction: A meta-analysis of contemporary randomized controlled trials
Wijeysundera HC, You JJ, Nallamothu BK, Krumholz HM, Cantor WJ, Ko DT. An early invasive strategy versus ischemia-guided management after fibrinolytic therapy for ST-segment elevation myocardial infarction: A meta-analysis of contemporary randomized controlled trials. American Heart Journal 2008, 156: 564-572.e2. PMID: 18760142, DOI: 10.1016/j.ahj.2008.04.024.Peer-Reviewed Original ResearchMeSH KeywordsAngioplasty, Balloon, CoronaryCardiac CatheterizationElectrocardiographyFemaleFibrinolytic AgentsHemorrhageHumansInjections, IntravenousInpatientsMaleMiddle AgedMyocardial InfarctionMyocardial IschemiaMyocardial ReperfusionRandomized Controlled Trials as TopicRecurrenceStentsStrokeThrombolytic TherapyConceptsST-segment elevation myocardial infarctionEarly invasive strategyPercutaneous coronary interventionElevation myocardial infarctionFibrinolytic therapyInvasive strategyMajor bleedingSTEMI patientsMyocardial infarctionHospital major bleedingIntravenous fibrinolytic therapyLarge randomized trialsRisk of strokeSignificant reductionCause mortalityEligible trialsCoronary interventionRandomized trialsContemporary trialsStent useInclusion criteriaPatientsReinfarctionTherapyTrials
2003
Efficacy and Safety of Low-Carbohydrate Diets: A Systematic Review
Bravata DM, Sanders L, Huang J, Krumholz HM, Olkin I, Gardner CD, Bravata DM. Efficacy and Safety of Low-Carbohydrate Diets: A Systematic Review. JAMA 2003, 289: 1837-1850. PMID: 12684364, DOI: 10.1001/jama.289.14.1837.Peer-Reviewed Original ResearchConceptsLow-carbohydrate dietSerum insulin levelsDiet durationSerum lipidsBlood pressureInsulin levelsSerum glucoseWeight lossAge 50 yearsParticipant weight lossLonger diet durationEnglish-language studiesSignificant adverse effectsObese patientsDietary interventionMean ageOutpatient settingCaloric intakeInclusion criteriaTotal caloriesAbstraction formCalorie intakeInsufficient evidenceSystematic reviewOutpatient recipients