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Autor(en) / Beteiligte
Titel
Aortic valve replacement for severe aortic stenosis in octogenarians: Patient outcomes and comparison of operative risk scores
Ist Teil von
  • Revista portuguesa de cardiologia, 2015-07, Vol.34 (7-8), p.439-446
Ort / Verlag
Portugal: Elsevier España
Erscheinungsjahr
2015
Quelle
MEDLINE
Beschreibungen/Notizen
  • Isolated aortic valve replacement (AVR) in octogenarians is associated with increased operative risk, due to higher prevalence of associated risk factors and other comorbidities, making outcome prediction essential. We sought to analyze operative mortality and morbidity and to compare the predictive accuracy of the logistic European System for Cardiac Operative Risk Evaluation score (EuroSCORE) I, EuroSCORE II and Society of Thoracic Surgeons (STS) score in this population. We retrospectively enrolled 106 consecutive octogenarians with symptomatic severe aortic stenosis undergoing isolated AVR in a large-volume single center between January 2003 and December 2010 and calculated surgical risk scores. Mean logistic EuroSCORE I, EuroSCORE II and STS score were 14.6±11, 4.4±3.1 and 4.0±2.4%, respectively. Mean operative mortality was 5.7% (six patients). Two (1.9%) patients suffered an ischemic stroke, three (2.8%) required temporary hemodialysis and five (4.7%) had a permanent pacemaker implanted. Five (4.7%) required rethoracotomy. No myocardial infarction or sternal wound infection was observed. Calibration-in-the-large showed overestimation of operative mortality with logistic EuroSCORE I (p=0.036), whereas EuroSCORE II (p=1.0) and STS (p=1.0) showed good calibration. C-statistic values were 0.877 (95% CI 0.800–0.933) for logistic EuroSCORE I, 0.792 (95% CI 0.702–0.864) for EuroSCORE II and 0.702 (95% CI 0.605–0.787) for STS, without statistically significant differences. These results suggest that AVR can be performed safely in selected octogenarians. EuroSCORE II and STS demonstrated superior calibration and should be the preferred tools for risk assessment, at least for this population. A cirurgia de substituição valvular aórtica (SVA) envolve um risco acrescido em octogenários, pela elevada prevalência de fatores de risco e comorbilidades, tornando essencial a predição de resultados. Pretendemos analisar a mortalidade operatória e comparar as capacidades preditivas do European System for Cardiac Operative Mortality (EuroSCORE) I, EuroSCORE II e o Society of Thoracic Surgeons (STS) score nesta população. Analisámos retrospetivamente 106 octogenários com estenose aórtica grave sintomática, submetidos a SVA isolada num centro terciário, entre janeiro de 2003 e dezembro de 2010. O EuroSCORE I logístico, o EuroSCORE II e o STS score médios foram 14,6±11, 4,4±3,1 e 4,0±2,4%, respetivamente. A mortalidade operatória foi 5,7% (seis doentes). Registámos como complicações dois (1,9%) acidentes vasculares cerebrais isquémicos, hemodiálise transitória em três doentes (2,8%) e cinco (4,7%) implantes de pacemaker definitivo. Cinco doentes (4,7%) requereram revisão da hemostase. Não se verificaram enfarte agudo do miocárdio ou infeção do esterno. O EuroSCORE I logístico sobreestimou a mortalidade (p=0,036), enquanto o EuroSCORE II (p=1,0) e o STS (p=1,0) score mostraram boa calibração. A area sob a curva foi de 0,877 (CI 95% 0,800-0,933) para o EuroSCORE I logístico, 0,792 (CI 95% 0,702-0,864) para o EuroSCORE II e 0,702 (CI 95% 0,605-0,787) para o STS score (p=ns para comparações). Estes resultados sugerem que a SVA pode ser realizada com morbi-mortalidade aceitável em octogenários selecionados. O EuroSCORE II e o STS score demonstraram melhor calibração e devem ser as métricas preferidas na avaliação do risco operatório desta população.
Sprache
Englisch; Portugiesisch
Identifikatoren
ISSN: 0870-2551
eISSN: 2174-2030
DOI: 10.1016/j.repc.2015.01.016
Titel-ID: cdi_doaj_primary_oai_doaj_org_article_6f39be3fccad46c985980f858d5766e4

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