2021
Association of COVID-19 Hospitalization Volume and Case Growth at US Hospitals with Patient Outcomes
Khera R, Liu Y, de Lemos JA, Das SR, Pandey A, Omar W, Kumbhani DJ, Girotra S, Yeh RW, Rutan C, Walchok J, Lin Z, Bradley SM, Velazquez EJ, Churchwell KB, Nallamothu BK, Krumholz HM, Curtis JP. Association of COVID-19 Hospitalization Volume and Case Growth at US Hospitals with Patient Outcomes. The American Journal Of Medicine 2021, 134: 1380-1388.e3. PMID: 34343515, PMCID: PMC8325555, DOI: 10.1016/j.amjmed.2021.06.034.Peer-Reviewed Original ResearchConceptsCOVID-19 hospitalizationHospitalization volumeAmerican Heart Association COVID-19 Cardiovascular Disease RegistryCase volumeUS hospitalsCoronavirus disease 2019 (COVID-19) hospitalizationIntensive care unit therapyHospital case fatality ratePoor COVID-19 outcomesCardiovascular Disease RegistryHospital case volumeCase fatality rateCOVID-19 outcomesHospital bed capacityLowest quartilePatient outcomesHospital careHigher oddsTriage strategiesFuture health challengesDisease RegistryMedical treatmentEarly identificationHospitalSignificant association
2017
Role of Hospital Volumes in Identifying Low-Performing and High-Performing Aortic and Mitral Valve Surgical Centers in the United States
Khera R, Pandey A, Koshy T, Ayers C, Nallamothu BK, Das SR, Drazner MH, Jessen ME, Kirtane AJ, Gardner TJ, de Lemos JA, Bhatt DL, Kumbhani DJ. Role of Hospital Volumes in Identifying Low-Performing and High-Performing Aortic and Mitral Valve Surgical Centers in the United States. JAMA Cardiology 2017, 2: 1322-1331. PMID: 29117319, PMCID: PMC5815001, DOI: 10.1001/jamacardio.2017.4003.Peer-Reviewed Original ResearchMeSH KeywordsAgedAged, 80 and overAortic ValveBayes TheoremCoronary Artery BypassDatabases, FactualFemaleHeart Valve Prosthesis ImplantationHospital Bed CapacityHospital MortalityHospitals, High-VolumeHospitals, Low-VolumeHospitals, TeachingHumansMaleMiddle AgedMitral ValveMitral Valve AnnuloplastyQuality of Health CareUnited StatesConceptsSurgical aortic valve replacementRisk-standardized mortality ratesMV replacementHospital procedure volumeMV repair proceduresHospital volumeSurgical proceduresProcedure volumeMitral Valve Surgical ProceduresHospital risk-standardized mortality ratesHigh-volume tertilesHospital surgical volumeMV surgical proceduresRisk-standardized outcomesAortic valve replacementCoronary artery bypassLow-volume hospitalsGood surgical outcomeMedian annual volumeRisk-adjusted outcomesLowest volume tertileHospital performanceRepair proceduresSAVR proceduresArtery bypass