Related Experiment Video
Updated: Jan 27, 2026

Interventional Diagnostic Procedure: A Practical Guide for the Assessment of Coronary Vascular Function
Published on: March 15, 2022
Analysis of thrombelastogram-guided medication in patients with coronary heart disease after percutaneous coronary
Yingbo Li1, Hongjin Chang2, Lina Ni1
1Department of Clinical Laboratory, Weihai Central Hospital, Weihai, Shandong 264400, P.R. China.
Insights
Thrombelastogram-guided (TEG-guided) anti-platelet therapy using clopidogrel and aspirin significantly reduced major adverse cardiovascular events (MACE) and bleeding in patients undergoing percutaneous coronary intervention (PCI). TEG guidance offers more targeted treatment for coronary heart disease patients.
Area of Science:
- Cardiovascular Medicine
- Clinical Trials
- Pharmacology
Background:
- Percutaneous coronary intervention (PCI) is a common procedure for coronary heart disease (CHD).
- Anti-platelet therapy with clopidogrel and aspirin is standard post-PCI, but optimal dosing remains challenging.
- Individualized anti-platelet response monitoring is crucial for effective and safe treatment.
Purpose of the Study:
- To investigate the efficacy of thrombelastogram-guided (TEG-guided) clopidogrel and aspirin therapy.
- To compare major adverse cardiovascular events (MACE) and bleeding rates between TEG-guided and standard therapy groups post-PCI.
- To evaluate the impact of TEG guidance on coagulation function and platelet inhibition rates.
Main Methods:
- Retrospective analysis of 203 patients undergoing PCI.
- Comparison between an experimental group (104 patients) receiving TEG-guided anti-platelet therapy and a control group (99 patients) receiving standard therapy.
- Evaluation of coagulation parameters (R, K, MA) and platelet inhibition rates.
- Three-month follow-up for MACE and bleeding events.
Main Results:
- The TEG-guided group showed significantly higher R and K values, and lower MA values post-treatment (P<0.05).
- Higher postoperative platelet inhibition rates were observed in the TEG-guided group (P<0.05).
- The incidence of MACE and bleeding events was significantly lower in the TEG-guided group compared to the control group (P<0.05).
Conclusions:
- TEG-guided dose adjustment of clopidogrel and aspirin provides superior treatment outcomes for coronary heart disease patients post-PCI.
- TEG guidance enables more targeted anti-platelet therapy, reducing MACE and bleeding risks.
- Thrombelastogram guidance is a valuable and promotable tool for optimizing anti-platelet therapy in PCI patients.
Abstract:
Effects of thrombelastogram-guided (TEG-guided) clopidogrel and aspirin on major adverse cardiovascular events (MACE) after percutaneous coronary intervention (PCI) were investigated. A retrospective analysis was performed on 203 patients undergoing PCI interventional therapy in the Cardiovascular Medicine of Weihai Central Hospital from February 2015 to September 2016. The patients were treated with clopidogrel and aspirin for anti-thrombus therapy. Among them, 104 patients who had TEG detection of anticoagulant effects for guiding medication were the experimental group, and 99 patients without TEG detection for guiding medication the control group. The coagulation function and the platelet inhibition rate of patients after medication were evaluated and compared between the two groups. The incidence of MACE and bleeding events of patients was counted during three months of follow-up. Patients in the experimental group had higher R (coagulation reaction time) value and K (blood clot formation time) value than those in the control group after treatment (P<0.05), and lower MA (maximum amplitude) value than those in the control group (P<0.05). Patients in the experimental group had higher postoperative platelet inhibition rate than those in the control group (P<0.05). Patients in the experimental group had lower incidence of MACE and bleeding events than those in the control group (P<0.05). Coronary heart disease (CHD) patients after PCI with the TEG-guided dose adjustment of clopidogrel have more satisfactory treatment effects than patients without the TEG guidance. TEG makes the treatment of patients more targeted and is worthy of promotion.
Related Concept Videos
Coronary Artery Disease I: Introduction
Coronary Artery Disease II: Pathophysiology
Coronary Artery Disease V: Interprofessional Care
Coronary Circulation
Coronary circulation begins at the base of the aorta, where two main arteries arise—the left and right coronary arteries. These arteries encircle the heart in the coronary sulcus and supply the...
Coronary Artery Disease IV: Preventive Measures
Coronary Artery Disease III: Clinical Manifestations

