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Effect of Peri-Interventional Blood Loss on In-Stent Thrombosis After Percutaneous Coronary Intervention in Patients
Akram Youssef1, Ahmed Mashaly2,3, Usama Alkomi1
1Department of Internal Medicine and Cardiology, Klinikum Chemnitz, Flemmingstrasse 2, 09116 Chemnitz, Germany.
Insights
Blood loss during percutaneous coronary intervention (PCI) for acute myocardial infarction (AMI) significantly increases the risk of in-stent stenosis. Higher blood loss correlates with a greater incidence and severity of in-stent stenosis and revascularization needs.
Area of Science:
- Cardiology
- Interventional Cardiology
- Vascular Biology
Background:
- Percutaneous coronary intervention (PCI) is a common treatment for acute myocardial infarction (AMI).
- In-stent stenosis (ISS) is a significant complication following PCI, leading to restenosis and adverse cardiovascular events.
- The impact of peri-interventional blood loss on long-term outcomes after PCI in AMI patients remains incompletely understood.
Purpose of the Study:
- To investigate the association between peri-interventional blood loss and the incidence and severity of in-stent stenosis.
- To evaluate the relationship between blood loss and the need for revascularization after PCI in patients with AMI.
- To determine if blood loss is an independent predictor of adverse outcomes in AMI patients undergoing PCI.
Main Methods:
- Retrospective analysis of 997 patients who underwent PCI for AMI and follow-up coronary angiography.
- Patients were categorized into three groups based on peri-interventional blood loss: mild (<1 mmol/L), moderate (1-2 mmol/L), and severe (>2 mmol/L).
- Incidence and severity of in-stent stenosis and revascularization rates were assessed at 6-12 months post-PCI.
Main Results:
- The incidence of in-stent stenosis was significantly higher in patients with moderate (33.1%) and severe (61.1%) blood loss compared to mild blood loss (19.3%) (p=0.001).
- Revascularization rates followed a similar trend, increasing with the severity of blood loss.
- Peri-interventional blood loss was independently associated with a higher incidence of in-stent stenosis and revascularization (HR: 1.35, 95% CI; 1.10-1.65, p<0.001).
Conclusions:
- Peri-interventional blood loss is a critical factor associated with increased incidence and severity of in-stent stenosis.
- Minimizing blood loss during PCI for AMI may be crucial for improving long-term outcomes and reducing the need for revascularization.
- Further prospective studies are warranted to confirm these findings and explore potential interventions to mitigate the effects of blood loss.
Abstract:
This paper evaluates the effect of blood loss on in-stent stenosis after percutaneous coronary intervention (PCI) in patients with acute myocardial infarction (AMI). Nine hundred and ninety-seven patients who underwent PCI for AMI as well as follow-up coronary angiography at 6-12 months from two centers were categorized into three groups based on peri-interventional blood loss at the primary intervention (mild, <1 mmol/L moderate, 1-2 mmol/L; severe > 2 mmol/L). The endpoint was to evaluate the incidence and severity of in-stent stenosis at follow-up angiography and the revascularization rate. The incidence of in-stent stenosis and revascularization in mild, moderate, and severe groups was 19.3%, 33.1%, and 61.1%, respectively (p = 0.001), with HR: 1.35 (95% CI; 1.10-1.65), p < 0.001. Peri-interventional blood loss was associated with a higher incidence of in-stent stenosis and revascularization 6-12 months after successful PCI in patients with AMI.
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