Clinical research in cardiology : official journal of the German Cardiac Society · 2024
Prognostic impact of disease-related complications in asymptomatic mitral regurgitation: a health insurance claims analysis.
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Acar L, Behrendt C A, Baldus S, Falk V, Smetak N, Nzomo M Mboulla, Marschall U, Girdauskas E
Аннотация
BACKGROUND AND AIMS: The impact of mitral regurgitation (MR) in asymptomatic patients is not well defined. We aimed to determine the prevalence of MR-related complications and their association with 10-year survival in a large unselected asymptomatic MR cohort.
METHODS: Health insurance claims data from Germany's second largest health insurance fund, BARMER, which maintains longitudinal data on 8.7 million German residents, were retrospectively analyzed. All patients with an outpatient diagnosis of MR in a minimum of two quarters during a calendar year and first recorded diagnosis between 2008 and 2011 were included. Patients with any complication attributable to MR or mitral valve intervention at index were excluded. Outcomes were compared between study group and age- and sex-matched controls (i.e., without known cardiac disease). MR-related complications of interest were new congestive heart failure, new-onset atrial fibrillation, pulmonary hypertension, or cardiac decompensation.
RESULTS: A total of 56,577 individuals (median age 68 years, 67% female) with asymptomatic MR were identified. At 10 years, MR-related complications were more frequent in the study group vs. control group (46.5% vs. 20.8%, OR 3.31, P < 0.0001). Furthermore, MR-related complications were more common in male vs. female patients with an asymptomatic MR (OR 2.65, P < 0.0001). The occurrence of at least one MR-related complication was associated with a reduced 10-year survival (OR 1.80, P < 0.0001).
CONCLUSIONS: Almost half of patients with asymptomatic MR experience complications during a 10 year follow-up which result in impaired survival. These results imply the necessity of long-term disease management program. Furthermore, decision-making process and timing for mitral valve intervention in asymptomatic patients should be reevaluated.
METHODS: Health insurance claims data from Germany's second largest health insurance fund, BARMER, which maintains longitudinal data on 8.7 million German residents, were retrospectively analyzed. All patients with an outpatient diagnosis of MR in a minimum of two quarters during a calendar year and first recorded diagnosis between 2008 and 2011 were included. Patients with any complication attributable to MR or mitral valve intervention at index were excluded. Outcomes were compared between study group and age- and sex-matched controls (i.e., without known cardiac disease). MR-related complications of interest were new congestive heart failure, new-onset atrial fibrillation, pulmonary hypertension, or cardiac decompensation.
RESULTS: A total of 56,577 individuals (median age 68 years, 67% female) with asymptomatic MR were identified. At 10 years, MR-related complications were more frequent in the study group vs. control group (46.5% vs. 20.8%, OR 3.31, P < 0.0001). Furthermore, MR-related complications were more common in male vs. female patients with an asymptomatic MR (OR 2.65, P < 0.0001). The occurrence of at least one MR-related complication was associated with a reduced 10-year survival (OR 1.80, P < 0.0001).
CONCLUSIONS: Almost half of patients with asymptomatic MR experience complications during a 10 year follow-up which result in impaired survival. These results imply the necessity of long-term disease management program. Furthermore, decision-making process and timing for mitral valve intervention in asymptomatic patients should be reevaluated.