Association of ß-blocker use at discharge and prognosis of oldest old with acute myocardial infarction: a prospective cohort study.
Eur Geriatr Med
; 15(1): 169-178, 2024 Feb.
Article
em En
| MEDLINE
| ID: mdl-38103145
ABSTRACT
PURPOSE:
It is uncertain whether ß-blockers are beneficial for long-term prognosis in older patients following acute myocardial infarction (AMI). Thus, this study sought to examine the effect of ß-blockers on long-term cardiovascular mortality (CVM) in the oldest old (≥ 80 years) with AMI.METHODS:
In this prospective, consecutive, non-randomized study, a total of 1156 patients with AMI admitted within 24 h after onset of symptoms were enrolled from January 2012 to February 2020. Univariate and multivariate Cox regression analyses were performed to examine the impact of ß-blocker use on prognosis. Furthermore, one-to-one propensity score matching (PSM) and inverse probability treatment weighting (IPTW) analyses were used to control for systemic differences between groups. The primary outcome was long-term CVM.RESULTS:
Among the enrolled subjects, 972 (85.9%) were prescribed with ß-blockers at discharge. Over a mean follow-up of 26.3 months, 224 cardiovascular deaths were recorded. Both univariate [hazard ratio (HR), 1.41, 95% confidence interval (CI) 0.93-2.13] and multivariate (HR, 1.29, 95% CI 0.79-2.10) Cox regression analyses showed that ß-blocker use had no significant association with the long-term CVM, which was further demonstrated by PSM (HR, 1.31, 95% CI 0.75-2.28) and IPTW (HR, 1.41, 95% CI 0.73-2.69) analyses. Subgroup analyses according to sex, heart rate, hypertension, diabetes, revascularization, left ventricular ejection fraction, and angiotensin-converting enzyme inhibitors/angiotensin receptor blockers use showed consistent results as well.CONCLUSION:
Our findings first suggested that the use of ß-blockers at discharge in oldest old with AMI was not useful for reducing post-discharge CVM, which need to be further verified by randomized controlled trials.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Alta do Paciente
/
Infarto do Miocárdio
Limite:
Aged
/
Aged80
/
Humans
Idioma:
En
Revista:
Eur Geriatr Med
Ano de publicação:
2024
Tipo de documento:
Article
País de publicação:
Suíça