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Original ResearchMay 2019 Vol 12, Issue 5

JOURNAL：Circ Cardiovasc Qual Outcomes. Article Link

Causes of Mortality After Percutaneous Coronary Intervention: Insights From the VA Clinical Assessment, Reporting, and Tracking Program

RS Bricker, JA Valle, SW Waldo et al. Keywords: clinical design; clinical assessment; study endpoint; mortality and cause

ABSTRACT

BACKGROUND - Public reporting of percutaneous coronary intervention (PCI) often uses periprocedural (30 days) mortality as a surrogate for procedural quality, though it is unclear how often death is attributable to the PCI. The cause of death among patients who died within 30 days of PCI in a national healthcare system was thus evaluated.

 

METHODS AND RESULTS - We identified all patients who died within 30 days of PCI in the Veterans Affairs (VA) Healthcare System from October 2005 to September 2016. Causes of death were classified through a detailed chart review using definitions from the Academic Research Consortium. Of 115 191 patients undergoing PCI during the study period, 1674 patients died within 30 days of PCI (1.5%). A detailed chart review demonstrated that the majority of patients had an undifferentiated death not definitively attributable to a single cause (981, 59%), whereas a minority had a death directly attributable to a cardiovascular cause (467, 28%). The majority of cardiovascular deaths were unrelated to the interventional procedure (335, 72%). Cardiovascular deaths were more likely to occur in the inpatient setting (95%) compared with noncardiac (89%) or undifferentiated deaths (49%, P<0.001).

 

CONCLUSIONS - A minority of deaths occurring after percutaneous revascularization were definitively due to cardiac causes, with an even smaller proportion related to the PCI. With such a small proportion of deaths directly attributable to the PCI, these data suggest that 30-day mortality may be an inappropriate metric to assess procedural quality.

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