Internal Medicine
Online ISSN : 1349-7235
Print ISSN : 0918-2918
ISSN-L : 0918-2918
ORIGINAL ARTICLES
Observational Study of Infective Endocarditis at a Community-based Hospital: Dominance of Elderly Patients with Comorbidity
Tomoo NagaiYoshiyuki TakaseAkira HamabeHirotsugu Tabata
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JOURNALS OPEN ACCESS

2018 Volume 57 Issue 3 Pages 301-310

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Abstract

Objective The purpose of this study was to present the recent clinical profiles and the real-world management of infective endocarditis (IE).

Methods All medical records of patients with IE were reviewed retrospectively for their clinical data, including clinical presentation, laboratory results, blood cultures, echocardiographic findings, treatments and complications. Using the clinical data collected, we calculated the EuroSCORE II, the European risk score for adult cardiac surgery, the Charlson Comorbidity Index as a surrogate of comordibity, and the Katz Index as a surrogate of frailty.

Results Thirty-eight patients were identified as having IE (24 men, age: 71.8±13.1 years). Congestive heart failure occurred in 16 patients (42%), stroke in 14 (50%), and systemic embolism in 5 (13%). The EuroSCORE II and Charlson Comorbidity Index were high (7.7±5.8% and 5.5±2.8%, respectively). The Katz Index was fair (5.5±1.4) before the onset but deteriorated to 2.8±2.7 at the time of establishing the diagnosis of IE (p<0.001). Early surgery was performed in 22 cases (61%). In-hospital death occurred in 10 cases (26%). A EuroSCORE II ≥9%, Staphylococcus aureus etiology, and a Charlson Comorbidity Index were suggested as determinants of in-hospital death (hazard ratios: 173.60, 9.31, 1.57, respectively). In contrast, early surgery was suggested as a determinant of the survival (hazard ratio: 0.04). The Charlson Comorbidity Index was also suggested as a determinant for selecting conservative management (odds ratio: 1.40).

Conclusion Comorbidity may influence the treatment selection and outcome of elderly patients with IE.

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© 2018 by The Japanese Society of Internal Medicine
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