Coronary artery disease
Incidence and Predictors of Stroke Associated With Percutaneous Coronary Intervention

https://doi.org/10.1016/j.amjcard.2009.03.046Get rights and content

Stroke is a serious complication of percutaneous coronary intervention (PCI). Clinical characteristics associated with this complication have not been well defined. Data were analyzed from the National Cardiovascular Data Registry. All patients undergoing PCI from January 1, 2004, to March 30, 2007, were included in the analysis (n = 706,782). Stroke is defined in the National Cardiovascular Data Registry as a central neurologic deficit persisting >72 hours with onset starting anytime in the cardiac catheterization laboratory until the time of hospital discharge. Periprocedural stroke developed in 0.22% of patients (n = 1,540). Patients who developed a stroke had a greater prevalence of concomitant medical illnesses and were more likely to present with an acute coronary syndrome. Patients with a stroke had a greater percentage of high-risk coronary lesions and worse PCI angiographic results. In multivariable analysis, known cerebrovascular disease, older age, acute coronary syndromes (unstable angina, ST- and non–ST-elevation myocardial infarction), and use of an intra-aortic balloon pump were factors most strongly associated with stroke. In-hospital mortality was 30% for patients who developed a stroke compared with 1% for those without stroke. In conclusion, stroke developing in association with PCI is rare but a devastating complication. Older patients and those with known cerebrovascular disease and acute coronary syndromes appear to be at the highest risk of stroke. The strong association of in-hospital stroke after PCI with acute coronary syndromes is noteworthy.

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Methods

Data collection and analysis within the NCDR have been previously described.7, 8 The NCDR, cosponsored by the American College of Cardiology and the Society for Cardiovascular Angiography and Intervention, collects clinical data of percutaneous coronary procedures from facilities across the United States into a common database that provides institutions with the ability to benchmark their care. Only institutions with submissions passing the inclusion and exclusion criteria for data completeness

Results

Of the 706,782 patients who underwent PCI from 637 hospitals, 0.22% of patients developed an in-hospital stroke (n = 1,540) and 99.78% of patients did not develop a stroke (n = 705,242).

Patients who developed a stroke after PCI were more likely to be older, women, underweight, and have greater prevalence of diabetes mellitus and hypertension compared with patients who did not develop a stroke (Table 1). There was greater incidence of heart failure, known cerebrovascular disease (previous

Discussion

In this largest cohort analysis of patients who develop an in-hospital stroke in association with PCI, we demonstrated that stroke is a rare but devastating complication with high in-hospital mortality. The incidence of stroke in this analysis is a little lower than that previously reported.2, 3, 4 Consistent with previous studies, we observed that known cerebrovascular disease and presence of systemic arterial hypertension were independent risk factors for development of stroke in association

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