After the implementation of the CP, there have been better results in patient care, such as reduction in the duration of catheterization and thromboprophylaxis. In comparison with other studies, we observed a clear reduction in length of stay and operative time. However, there is still room for improvement in reducing the duration of catheterization.

Chronic obstructive pulmonary disease patients with HFR are more frequently male, older, have worse dyspnea, lower lung function, belong more frequent to exacerbator emphysema phenotype, and more frequently diabetics. The variables that continued to be independent predictors of HFR in the multivariate analysis were sex, phenotype, occurrence of complications during admission, destabilized heart failure, and length of hospital stay.

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