Wednesday, November 11, 2020

Coronary anatomy and comorbidities impact on elective PCI outcomes in left main and multivessel coronary artery disease

Alexandros G.Sfakianakis shared this article with you from Inoreader

Abstract

Introduction

The effects of coronary anatomy, lesion complexity, and comorbidities on outcomes of elective percutaneous coronary intervention (PCI) in high‐risk patients with left main (LM) and/or multivessel coronary artery disease (CAD) are not well studied, as these patients are typically underrepresented in the clinical trials.

Methods

This cohort study involved 33,568 consecutive elective PCI cases, excluding patients with prior coronary artery bypass graft, acute coronary syndrome within 24 hr of index PCI, or shock. All data were obtained from the New York State's PCI Reporting System from the calendar year 2015. In‐hospital mortality was the primary outcome of study. Logistic regression models were built to calculate odds ratios (OR) with 95% confidence intervals (CI) for in‐hospital mortality after adjustment for coronary anatomy and significant clinical comorbidities.

Results

In this cohort of elective PCI cases all cause in‐hospital mortality was low (0.3%), with a clear mortality gradient according to the extent of CAD: 0.1% in 1 vessel disease, 0.4% in 2 vessel, 0.5% in 3 vessel disease, and 3.2% in patients with LM CAD (p < .001). Mortality was also significantly increased in patients with multiple comorbidities: 0.1% in patients with 1 comorbidity, 0.7% with 2, 2.5% with 3, and 7.4% with 4 or more studied comorbidities (p < .0001). When adjusted for coronary anatomy and lesion complexity, having any 4 or more comorbidities was associated with significantly increased odds of dying after elective PCI (OR 25.9, 95% CI 8.152–82.063, p < .0001). Furthermore, when compared to patients with 3‐vessel CAD, and accounted for comorbidities, the patients with LM disease still had significantly increased (OR 5.254, 95% CI 3.104–8.891, p < .0001) odds of dying after elective PCI.

Conclusions

In patients undergoing elective PCI, multivessel CAD and particularly LM disease are associated with significantly increased all‐cause mortality. Furthermore, when adjusted for the extent of CAD and lesion complexity, comorbidity burden remains an important predictor of mortality.

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