Over a 20-year period, mortality from left-side infective endocarditis decreased from 38% in the earliest period to 20% in the latest period (P=0.004).
Observational (n=595)
No
The study highlights a 20-year trend in left-sided infective endocarditis showing an aging patient population and increased involvement of biological prostheses, alongside decreasing rates of severe valvular regurgitation and surgery.
Absolute Event Rate: 20% vs 38%
p-value: p=0.004
Abstract Background The purpose of this study was to analyze the secular trends of infective endocarditis in a teaching hospital between January 1996 and December 2015. Methods We report on a single-center retrospective study of patients with left-side valve infective endocarditis. We performed an analysis of secular trends in the main epidemiological and etiological aspects, as well as clinical outcomes, in 5 successive 4-year periods (P1 to P5). Results In total, 595 episodes of infective endocarditis were included, of which 76% were community-acquired and 31.3% involved prosthetic valves. Among the cases, 70% occurred in men, and the mean age (SD) was 64.1 (14.3) years. A significant increase in older patients (age ≥70 years) between P1 (15.332%) and P5 (51.9%; P .001) was observed. The rate of infective endocarditis on biological prostheses also increased in the prosthetic group, accounting for 30% in P1 and 67.3% in P5 (P .001). By contrast, there were significant decreases in vascular and immunological phenomena over the study period, with decreases in the presence of moderate to severe valvular insufficiency (75.9% in P1 to 52.6% in P5; P .001) and valvular surgery (43% in P1 vs 29.6% in P5; P = .006). Finally, overall mortality was 23.9%, and although it was highest in P1, it subsequently remained stable through P2 to P5 (38% in P1 to 20% in P5; P = .004). Conclusions There has been a significant increase in infective endocarditis in older patients. The decrease in moderate to severe valve regurgitation at diagnosis could explain the stable mortality despite the increase in the mean age of patients over time.
Cuervo et al. (Fri,) conducted a observational in Left-side valve infective endocarditis (n=595). Secular trends (time period) vs. Earlier time periods (P1) was evaluated on Overall mortality (p=0.004). Over a 20-year period, mortality from left-side infective endocarditis decreased from 38% in the earliest period to 20% in the latest period (P=0.004).