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Review
. 2023 Feb 1;24(2):105-112.
doi: 10.2459/JCM.0000000000001410. Epub 2022 Dec 22.

Incidence and mortality of infective endocarditis in the last decade: a single center study

Matteo Lisi  1   2   3 , Filippo Flamigni  2   4 , Michele Russo  2 , Matteo Cameli  1 , Giulia Elena Mandoli  1 , Maria Concetta Pastore  1 , Donato Mele  5 , Gianluca Campo  4 , Michael Y Henein  3 , Andrea Rubboli  2
Affiliations
Review

Incidence and mortality of infective endocarditis in the last decade: a single center study

Matteo Lisi et al. J Cardiovasc Med (Hagerstown). .

Abstract

Background: Infective endocarditis (IE) is a significant disease characterized by high mortality and complications. The aim of this study was to evaluate the incidence/100 000 inhabitants and the in-hospital mortality/100 000 inhabitants of IE during the last 10 years in the province of Ravenna.

Methods and results: We reviewed the public hospitals discharge database from January 2010 to December 2020 using the international classification of disease codification (ICD-9) for IE. We used the Italian national statistical institute (ISTAT) archive to estimate the number of Ravenna inhabitants/year. In 10 years, we identified a total of 407 patients with diagnosis of IE.The incidence of IE increased significantly from 6.29 cases/100 000 inhabitants in 2010 to 19.58 cases/100 000 inhabitants in 2020 ( P < 0.001). Also, the in-hospital mortality from IE increased over the same number of years, from 1.8 deaths/100 000 inhabitants in 2010 to 4.4 deaths/100 000 inhabitants in 2020 ( P < 0.001). The mortality rate (%) of IE over the years did not increase ( P = 0.565). Also, over the years there was no difference in the site of infection ( P = 0.372), irrespective of the valve localization or type, native valve ( P = 0.347) or prosthetic valve ( P = 0.145). On logistic regression analysis, age was the only predictor of in-hospital mortality (odds ratio 1.045, 95% confidence interval: 1.015; 1.075, P = 0.003).

Conclusions: Ravenna-based data on IE showed increased disease incidence but unchanged mortality rate over 10 years of follow-up. Age remains the sole predictor of population-based mortality, irrespective of the nature of the valve, native or substitute, and the organism detected on microbiology.

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