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Interventional Diagnostic Procedure: A Practical Guide for the Assessment of Coronary Vascular Function
Published on: March 15, 2022
Heparin infusion after successful percutaneous coronary intervention: a prospective, randomized trial
Mohammad Javad Zibaeenezhad1, Yalda Mazloum
1Cardiovascular Research Centre (CRC), Shiraz University of Medical Sciences (SUMS), Shiraz, Iran. zibaeem2@sums.ac.ir
Insights
Omitting heparin after successful percutaneous coronary interventions (PCI) did not increase ischaemic complications. This suggests routine post-procedure heparin is not necessary, potentially reducing bleeding risks.
Area of Science:
- Cardiology
- Interventional Cardiology
- Clinical Trials
Background:
- Continuous heparin infusion post-percutaneous coronary intervention (PCI) may increase bleeding risks.
- The benefits of prolonged heparin infusion after successful PCI are not well-established.
Purpose of the Study:
- To determine if omitting heparin infusion after successful coronary interventions increases ischaemic complications.
- To evaluate the safety and efficacy of heparin omission versus prolonged heparin infusion post-PCI.
Main Methods:
- A randomized trial involving 200 patients undergoing successful PCI.
- Patients were assigned to either prolonged heparin or no post-procedural heparin (control).
- Primary endpoint: in-hospital bleeding and vascular events; Secondary endpoint: in-hospital ischaemic events.
Main Results:
- Ischaemic complications occurred in 8.5% of patients (10% control vs. 7% heparin group), a non-significant difference (P=0.44).
- Specific ischaemic events like myocardial infarction and chest pain with ECG changes showed no significant group differences.
- Bleeding and vascular injury might be reduced by omitting post-procedural heparin.
Conclusions:
- Omission of heparin after successful coronary interventions does not significantly increase ischaemic complications.
- Routine post-procedure heparin is not recommended following successful PCI.
- This practice may help mitigate bleeding risks associated with heparin therapy.
Objective:
The aim of this randomized trial was to evaluate whether omission of heparin infusion after successful coronary interventions increased the incidence of ischaemic complications. Continuous heparin infusion after percutaneous coronary interventions could increase the occurrence of bleeding; however, the probable advantages of prolonged heparin infusion are unknown.
Methods And Results:
A total of 200 consecutive patients who underwent successful PTCA were randomly assigned to receive either prolonged heparin (heparin group) or no post-procedural heparin (control group). The two treatment groups were comparable with respect to clinical and angiographic characteristics. The primary end point of the study was in-hospital bleeding and vascular events and secondary end points included in-hospital ischaemic events. Ischaemic complications occurred in 17 (8.5%) patients; ten patients (10%) in the control group and seven patients (7%) in the heparin group. Chest pain with new ECG changes was seen in 11 (5.5%) patients (4% in the heparin group vs. 7% in the control group). Two patients (2%) in the control group had a Q-wave myocardial infarction and one patient in the control group died as a result of ischaemic complications. In the heparin group 2 (2%) patients developed non-Q-wave myocardial infarction and one patient (1%) underwent emergency CABG during the same hospitalization. The difference between groups regarding secondary end points was not statistically significant (P = 0.44).
Conclusion:
Heparin infusion after successful coronary interventions could increase the occurrence of bleeding and vascular injury; however, omission of heparin after a successful procedure did not significantly increase the incidence of ischaemic complications. Thus routine post-procedure heparin is not recommended.
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