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Temporal trends in the prevalence and outcomes of geriatric patients with acute myocardial infarction in Japan-A report from the Miyagi AMI Registry Study.

Abstract：

BACKGROUND:Along with the global aging, the number of geriatric patients with acute myocardial infarction (AMI) has been increasing. However, temporal trends in the prevalence and outcomes of geriatric patients with AMI, with a special reference to heart failure (HF) on admission, remain to be elucidated. METHODS:The Miyagi AMI Registry is a prospective, multicenter, and observational study. This registry was established in 1979 and has been continued for 40 years. We examined a total of 6,596 AMI patients aged ≥70 years (male/female 4,141/2,455) registered in this registry from 2005 to 2016 and divided them into 3 groups according to age [70-79 (n = 3,485), 80-89 (n = 2,601), and ≥90 years (n = 510)]. RESULTS:Of those, 17.6% had HF (Killip class ≥ II) on admission, for which age, female sex, diabetes, and previous MI were identified as independent predictors. Importantly, the prevalence of HF on admission significantly increased in all ages during the study period (all p for trend <0.01). Despite the presence of HF on admission, primary percutaneous coronary intervention (PCI) was performed in about 70% of patients aged in their 80 s and about half of those aged ≥90 years. In each group, performance rate of primary PCI also progressively increased (all p < 0.05) irrespective of concomitant HF. However, in-hospital mortality remained unchanged. Multivariable analysis demonstrated that, even for patients with HF on admission, primary PCI was associated with improved in-hospital mortality in the younger 2 groups [adjusted odds ratios (ORs), 95% confidence intervals (CI) 0.58 (0.36-0.93) for 70s, 0.64 (0.43-0.95) for 80s, and 0.99 (0.44-2.21) for ≥90s], whereas PCI was ineffective to reduce long-term hospitalization ≥30 days in all groups [adjusted ORs (95%CI) 0.90 (0.52-1.54), 0.66 (0.38-1.14), and 0.38 (0.07-2.10)]. CONCLUSIONS:These results demonstrate that increasing prevalence of HF on admission and increasing performance of primary PCI counteract each other with resultant unchanged in-hospital outcomes in geriatric AMI patients in Japan.

journal_name

J Cardiol

journal_title

Journal of cardiology

authors

Sato K,Takahashi J,Hao K,Miyata S,Suda A,Shindo T,Ikeda S,Kikuchi Y,Shiroto T,Matsumoto Y,Sakata Y,Shimokawa H

doi

10.1016/j.jjcc.2019.10.006

subject

Has Abstract

pub_date

2020-05-01 00:00:00

pages

465-472

issue

eissn

0914-5087

issn

1876-4738

pii

S0914-5087(19)30336-3

journal_volume

pub_type

杂志文章

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Temporal trends in the prevalence and outcomes of geriatric patients with acute myocardial infarction in Japan-A report from the Miyagi AMI Registry Study.