1987
Biological versus mechanical valves Analysis of 1,116 valves inserted in 1,012 adult patients with a 4,818 patient-year and a 5,327 valve-year follow-up
Hammond G, Geha A, Kopf G, Hashim S. Biological versus mechanical valves Analysis of 1,116 valves inserted in 1,012 adult patients with a 4,818 patient-year and a 5,327 valve-year follow-up. Journal Of Thoracic And Cardiovascular Surgery 1987, 93: 182-198. PMID: 3807394, DOI: 10.1016/s0022-5223(19)36440-2.Peer-Reviewed Original ResearchConceptsBiological valvesMechanical valvesPerivalvular leakValve failureMechanical prosthetic heart valvesYale-New Haven HospitalAnticoagulation-related hemorrhageLate cardiac deathValve-related mortalityValve-related deathIncidence of thromboembolismType of valveYears of ageProsthetic heart valvesAdult patientsTotal morbidityCardiac deathPatientsHeart valvesReoperationThromboembolismSignificant differencesValve analysisLittle direct evidenceYear period
1986
Fate of Left-Sided Cardiac Bioprosthesis Valves in Children
Kopf G, Geha A, Hellenbrand W, Kleinman C. Fate of Left-Sided Cardiac Bioprosthesis Valves in Children. JAMA Surgery 1986, 121: 488-490. PMID: 3954594, DOI: 10.1001/archsurg.1986.01400040126021.Peer-Reviewed Original ResearchConceptsEmergency valve replacementBioprosthetic valvesValve replacementMitral positionBioprosthetic valve failureMassive mitral regurgitationHigh operative mortalityPediatric age groupElective valve replacementYears of agePorcine bioprosthetic valvesLoss of mobilityLeaflet immobilityHospital mortalityOperative mortalityEmergency surgeryHemodynamic deteriorationMitral stenosisSevere calcificationMitral regurgitationBiologic valvesSevere stenosisThromboembolic phenomenaAortic positionMitral valve