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Perfusion ; 38(8): 1670-1681, 2023 11.
Artigo em Inglês | MEDLINE | ID: mdl-36148887

RESUMO

INTRODUCTION: Thrombosis and bleeding are major complications in patients supported with left ventricular assist devices (LVADs). We aimed to assess the incidence of bleeding and thrombosis in patients supported with a HeartWare left ventricular assist device (HVAD), their predictive factors and their impact on mortality. METHODS: A single centre retrospective observational study of patients supported with HVAD over 5 years from January 2015 to October 2020. RESULTS: A total 139 patients (median age 52.5, 72.1% male) were included for analysis. The probability of 1-year survival was 73.1%. Advanced age (>60 years) and EuroSCORE II score (>20%) were independently associated with reduced survival. Major bleeding and thrombosis occurred in 46.8% and 35.3% respectively. Secondary mechanical circulatory support (MCS) increased likelihood of experiencing major bleeding (HR: 2.76, 95%1.65-4.62, p < 0.0001) whilst patients receiving aspirin were protected from bleeding and thrombosis (HR: 0.34 95% CI 0.19-0.58, p < 0.001). Pre-operative anaemia (HR: 3.02, 95% CI: 1.6-5.7, p = 0.014) and use of a secondary MCS device (HR: 2.78, 95% CI: 1.2-6.3, p = 0.001) were associated with an increased risk of thrombosis. Patients with any major bleeding (with or without thrombosis) had a 7.68-fold (95% CI 3.5-16.8) increased risk of death compared to those without. In contrast, 'thrombosis only' patients had 4.23-fold (95% CI 1.8-10.2) increased risk of death compared to those without thrombosis. The risk of mortality was increased in patients with any thrombosis and the risk of death was highest in patients with major bleeding and thrombosis (HR: 16.49 [95% CI 7.7-35.3]). CONCLUSIONS: Major bleeding and thrombosis significantly increase the 1-year mortality. Optimal perioperative haemostasis and anticoagulation remains crucial in patients supported with HVAD.


Assuntos
Insuficiência Cardíaca , Coração Auxiliar , Trombose , Humanos , Masculino , Pessoa de Meia-Idade , Feminino , Choque Cardiogênico/cirurgia , Choque Cardiogênico/complicações , Coração Auxiliar/efeitos adversos , Hemorragia/complicações , Trombose/etiologia , Estudos Retrospectivos , Resultado do Tratamento
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