2015
Hospital Variability in Use of Anticoagulant Strategies During Acute Myocardial Infarction Treated With an Early Invasive Strategy
Arnold SV, Li SX, Alexander KP, Spertus JA, Nallamothu BK, Curtis JP, Kosiborod M, Gupta A, Wang TY, Lin H, Dharmarajan K, Strait KM, Lowe TJ, Krumholz HM. Hospital Variability in Use of Anticoagulant Strategies During Acute Myocardial Infarction Treated With an Early Invasive Strategy. Journal Of The American Heart Association 2015, 4: e002009. PMID: 26077589, PMCID: PMC4599539, DOI: 10.1161/jaha.115.002009.Peer-Reviewed Original ResearchConceptsEarly invasive strategyAnticoagulant strategiesMyocardial infarctionBleeding rateInvasive strategyAcute myocardial infarction patientsOptimal anticoagulant strategyHalf of patientsPercutaneous coronary interventionAcute myocardial infarctionMyocardial infarction patientsHospital use patternsComparative effectiveness studiesRisk-standardized mortalityChoice of anticoagulantsMedian odds ratioCoronary interventionPatient factorsSystemic anticoagulationHospital variabilityInfarction patientsPrincipal diagnosisOdds ratioMultivariate regression modelPatterns of useFrequency and Effects of Excess Dosing of Anticoagulants in Patients ≤55 Years With Acute Myocardial Infarction Who Underwent Percutaneous Coronary Intervention (from the VIRGO Study)
Gupta A, Chui P, Zhou S, Spertus JA, Geda M, Lorenze N, Lee I, Onofrio G, Lichtman JH, Alexander KP, Krumholz HM, Curtis JP. Frequency and Effects of Excess Dosing of Anticoagulants in Patients ≤55 Years With Acute Myocardial Infarction Who Underwent Percutaneous Coronary Intervention (from the VIRGO Study). The American Journal Of Cardiology 2015, 116: 1-7. PMID: 25937348, PMCID: PMC4466069, DOI: 10.1016/j.amjcard.2015.03.032.Peer-Reviewed Original ResearchMeSH KeywordsAdultAge DistributionAngioplasty, Balloon, CoronaryAnticoagulantsAntithrombinsBody Mass IndexCohort StudiesFemaleHemorrhageHeparinHirudinsHumansMaleMiddle AgedMyocardial InfarctionPeptide FragmentsPercutaneous Coronary InterventionPlatelet Glycoprotein GPIIb-IIIa ComplexPrevalenceRecombinant ProteinsRisk AssessmentRisk FactorsSex DistributionTreatment OutcomeUnited StatesConceptsPercutaneous coronary interventionGlycoprotein IIb/IIIa inhibitorsIIb/IIIa inhibitorsExcess dosingAcute myocardial infarctionCoronary interventionMultivariable analysisMyocardial infarctionUnderwent Percutaneous Coronary InterventionLower body weightOlder patientsYounger patientsUnfractionated heparinMedical recordsUnivariate analysisAnticoagulant agentsAnticoagulant drugsBody weightPatientsDosingYounger ageLogistic regressionYoung womenAnticoagulantsGender-based differences
2000
Anti-thrombotic therapy for elderly patients with acute coronary syndromes
Chen Y, Tuohy E, Krumholz H. Anti-thrombotic therapy for elderly patients with acute coronary syndromes. Coronary Artery Disease 2000, 11: 323-330. PMID: 10860175, DOI: 10.1097/00019501-200006000-00005.Peer-Reviewed Original ResearchUtilization and effectiveness of a weight-based heparin nomogram at a large academic medical center.
Balcezak TJ, Krumholz HM, Getnick GS, Vaccarino V, Lin ZQ, Cadman EC. Utilization and effectiveness of a weight-based heparin nomogram at a large academic medical center. The American Journal Of Managed Care 2000, 6: 329-38. PMID: 10977433.Peer-Reviewed Original ResearchConceptsWeight-based nomogramWeight-based heparin nomogramTherapeutic rangeTherapeutic thresholdHeparin nomogramIntravenous heparin therapyProportion of patientsProspective cohort analysisLarge academic medical centerInternal medicine serviceComputerized order entry systemAcademic medical centerEffective patient careSupratherapeutic aPTTsHeparin therapyConsecutive patientsOrder entry systemEfficacious therapyMedical CenterCohort analysisMedicine servicePatient carePhysician behaviorNomogramPatients
1998
Use and Effectiveness of Intravenous Heparin Therapy for Treatment of Acute Myocardial Infarction in the Elderly
Krumholz H, Hennen J, Ridker P, Murillo J, Wang Y, Vaccarino V, Ellerbeck E, Radford M. Use and Effectiveness of Intravenous Heparin Therapy for Treatment of Acute Myocardial Infarction in the Elderly. Journal Of The American College Of Cardiology 1998, 31: 973-979. PMID: 9561996, DOI: 10.1016/s0735-1097(98)00022-9.Peer-Reviewed Original ResearchConceptsAcute myocardial infarctionIntravenous heparin therapyIntravenous heparinMyocardial infarctionHeparin therapyMortality rateFull-dose intravenous heparinRetrospective cohort studyHospital medical recordsUse of heparinReperfusion strategyCohort studyElderly patientsMedical recordsBaseline differencesObservational studyMedicare beneficiariesInfarctionTherapeutic effectivenessPatientsTreatment factorsHeparinContraindicationsTreatmentTherapyTrends in the Quality of Care for Medicare Beneficiaries Admitted to the Hospital With Unstable Angina
Krumholz H, Philbin D, Wang Y, Vaccarino V, Murillo J, Therrien M, Williams J, Radford M. Trends in the Quality of Care for Medicare Beneficiaries Admitted to the Hospital With Unstable Angina. Journal Of The American College Of Cardiology 1998, 31: 957-963. PMID: 9561993, DOI: 10.1016/s0735-1097(98)00106-5.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overAngina, UnstableAnticoagulantsAspirinConnecticutFemaleGuideline AdherenceHeparinHospitalsHumansMaleMedicarePlatelet Aggregation InhibitorsPractice Guidelines as TopicQuality Indicators, Health CareQuality of Health CareRetrospective StudiesSurvival AnalysisUnited StatesConceptsUse of aspirinUnstable anginaElderly patientsConsecutive patientsHospital admissionRetrospective cohort studyPrincipal discharge diagnosisPatterns of treatmentCare of patientsGuideline-based useQuality of careHealth care policyAHCPR guidelinesChest painHospital dischargeCohort studyMedical chartsPatient factorsDischarge diagnosisPatient outcomesPractice patternsConnecticut hospitalsPractice guidelinesAnginaMedicare beneficiaries
1993
Cardioversion from Atrial Fibrillation without Prolonged Anticoagulation with Use of Transesophageal Echocardiography to Exclude the Presence of Atrial Thrombi
Manning W, Silverman D, Gordon S, Krumholz H, Douglas P. Cardioversion from Atrial Fibrillation without Prolonged Anticoagulation with Use of Transesophageal Echocardiography to Exclude the Presence of Atrial Thrombi. New England Journal Of Medicine 1993, 328: 750-755. PMID: 8437595, DOI: 10.1056/nejm199303183281102.Peer-Reviewed Original ResearchConceptsAtrial thrombusLong-term anticoagulationAtrial fibrillationTransesophageal echocardiographyOral anticoagulationEarly cardioversionTransthoracic echocardiographyLong-term oral anticoagulationConventional noninvasive techniquesOral anticoagulation therapyShort-term anticoagulationPresence of thrombusAnticoagulation therapyEmbolic eventsQualifying patientsConsecutive patientsProlonged anticoagulationSuccessful cardioversionSinus rhythmAnticoagulationCardioversionEchocardiographyPatientsThrombusFibrillation