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Updated: Jun 8, 2026

Interventional Diagnostic Procedure: A Practical Guide for the Assessment of Coronary Vascular Function
Published on: March 15, 2022
Correlates and consequences of gastrointestinal bleeding complicating percutaneous coronary intervention
Michael A Gaglia1, Rebecca Torguson, Manuel A Gonzalez
1Washington Hospital Center, Washington, DC, USA.
Insights
Gastrointestinal bleeding (GIB) after percutaneous coronary intervention (PCI) significantly increases short-term mortality. However, bivalirudin use was linked to reduced GIB risk, and GIB did not impact long-term outcomes in survivors.
Area of Science:
- Cardiology
- Gastroenterology
- Clinical Research
Background:
- Gastrointestinal bleeding (GIB) is a serious complication of percutaneous coronary intervention (PCI), associated with high mortality.
- Understanding the clinical factors and long-term outcomes related to GIB after PCI is crucial for patient management.
Purpose of the Study:
- To identify clinical and procedural factors associated with GIB complicating PCI.
- To evaluate the impact of GIB on 30-day mortality and 1-year major adverse cardiac events (MACEs).
Main Methods:
- Retrospective analysis of 20,621 patients undergoing PCI between January 2000 and January 2010.
- Multivariable logistic regression and Cox proportional hazards regression were used to identify predictors of GIB and mortality.
- Landmark analysis assessed the impact of GIB on 1-year MACEs in hospital survivors.
Main Results:
- In-hospital GIB occurred in 0.72% of patients (147 cases).
- Risk factors for GIB included older age, shock, acute myocardial infarction, renal insufficiency, lower hematocrit, and glycoprotein IIb/IIIa inhibitors; bivalirudin was protective.
- GIB significantly increased unadjusted 30-day mortality (20.5% vs. 2.4%) and was a key correlate of mortality, along with shock.
- GIB was not associated with adjusted 1-year mortality or MACEs in patients surviving to discharge.
Conclusions:
- Gastrointestinal bleeding complicating PCI has a substantial impact on 30-day mortality.
- Bivalirudin use is associated with reduced rates of GIB following PCI.
- While GIB increases short-term mortality risk, it does not appear to affect long-term MACEs in survivors.
Abstract:
Gastrointestinal bleeding (GIB) complicating percutaneous coronary intervention (PCI) results in high mortality, but clinical factors associated with and long-term outcomes of GIB are poorly understood. We sought to examine clinical and procedural factors associated with GIB complicating PCI. We also examined the impact of GIB on 30-day mortality and 1-year major adverse cardiac events (MACEs). Patients undergoing PCI from January 2000 to January 2010 were retrospectively analyzed for the occurrence of in-hospital GIB. Multivariable logistic regression and Cox proportional hazards regression were used to identify predictors of in-hospital GIB and 30-day mortality. Landmark analysis of patients surviving to hospital discharge was performed to assess the impact of GIB on 1-year MACEs. Of 20,621 patients who underwent PCI, 147 (0.72%) who developed in-hospital GIB were identified. Variables associated with increased risk of GIB included older age, shock, acute myocardial infarction, chronic renal insufficiency, lower baseline hematocrit, and glycoprotein IIb/IIIa inhibitors; bivalirudin decreased the risk. Unadjusted 30-day mortality rate of patients with GIB was 20.5% compared to 2.4% of patients without GIB. After multivariable adjustment, GIB and shock (and an interaction between the 2) were the most important correlates of 30-day mortality. In the population surviving to discharge, however, GIB was not associated with adjusted mortality or MACEs. In conclusion, GIB complicating PCI has a dramatic impact on 30-day mortality, and bivalirudin was associated with lower rates of GIB.
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