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  • Title: Ventricular septal rupture complicating acute myocardial infarction: Incidence, treatment, and outcomes among medicare beneficiaries 1999-2014.
    Author: Goldsweig AM, Wang Y, Forrest JK, Cleman MW, Minges KE, Mangi AA, Aronow HD, Krumholz HM, Curtis JP.
    Journal: Catheter Cardiovasc Interv; 2018 Nov 15; 92(6):1104-1115. PubMed ID: 29513365.
    Abstract:
    OBJECTIVES: The present study was designed to assess whether the incidence and outcomes of VSR-AMI have changed in the era of timely primary PCI. BACKGROUND: Ventricular septal rupture (VSR) is a rare but frequently fatal complication of acute myocardial infarction (AMI). METHODS: We conducted a retrospective cohort study of all Medicare fee-for-service beneficiaries from 1999 to 2014 to examine trends in the incidence, surgical and percutaneous repair, and 30-day and 1-year mortality of VSR-AMI. RESULTS: The annual incidence of VSR-AMI hospitalization declined by 41.6% from 197 patients per 100,000 AMIs in 1999 to 115 patients per 100,000 AMIs in 2014 (P < 0.001). The 30-day VSR-AMI repair rate decreased from 49.9% in 1999 to 33.3% in 2014 (P < 0.001). In 2014, 82.9% of repairs were performed surgically and 17.1% percutaneously. VSR-AMI mortality rates were high (60.2% at 30 days; 68.5% at 1 year) and changed minimally over the study period with adjusted 30-day mortality per year Odds Ratio (OR) 0.99 (95% confidence interval [CI] 0.98-1.01) and adjusted 1-year mortality per year OR 0.98 (95% CI 0.97-1.00). Across the 16 years of data, unadjusted mortality rates were lower in patients undergoing repair than in unrepaired patients at 30 days (mean 51.7% and 65.7%, P ≤ 0.01) and 1 year (mean 62.0% and 72.8%, P < 0.01). CONCLUSIONS: In the era of increased timely primary PCI, the incidence of VSR-AMI hospitalization declined but its associated mortality rate remained high. Rates of VSR repair decreased from 1999 to 2014 despite increased use of percutaneous repair.
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