Enhanced-Dose Statins for ST-Segment Elevation Myocardial Infarction Patients after Emergency Percutaneous Coronary Intervention
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Updated: Sep 5, 2025

Postconditioning with Lactate-enriched Blood for Cardioprotection in ST-segment Elevation Myocardial Infarction
Published on: May 28, 2019
Wenzhong Chen1, Zhiwen Fan2, Canhui Huang1
1Department of Cardiovascular Medicine, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, Guangdong 510180, China.
Insights
Enhanced-dose atorvastatin significantly improved cardiac function and reduced adverse events in ST-segment elevation myocardial infarction (STEMI) patients undergoing percutaneous coronary intervention (PCI). This statin regimen is safe and effective for STEMI prognosis.
Area of Science:
- Cardiology
- Pharmacology
Background:
- Acute ST-segment elevation myocardial infarction (STEMI) is a critical cardiovascular condition.
- Emergency percutaneous coronary intervention (PCI) is a primary treatment for STEMI.
Purpose of the Study:
- To investigate the impact of enhanced-dose atorvastatin on STEMI patients undergoing emergency PCI.
- To evaluate the efficacy and safety of this statin regimen on cardiac function and clinical outcomes.
Main Methods:
- A study involving 98 STEMI patients divided into two groups: enhanced-dose atorvastatin and standard-dose atorvastatin.
- Measurements included cardiac output, left ventricular ejection fraction, TIMI blood flow, vagus nerve function, and major adverse cardiac events (MACE).
Main Results:
- The enhanced-dose group showed significantly improved cardiac output, ejection fraction, and TIMI blood flow post-treatment.
- Vagus nerve function markers (DC and ChRS) were higher in the enhanced-dose group.
- The incidence of MACE was lower in the enhanced-dose group with no significant difference in adverse reactions.
Conclusions:
- Enhanced-dose atorvastatin improves PCI efficacy, cardiac function, and vagus nerve function in STEMI patients.
- This statin strategy is safe and reduces major adverse cardiac events, suggesting its value in STEMI management.
Background:
Acute ST-segment elevation myocardial infarction (STEMI) is a serious multiple acute cardiovascular disease. This study investigated the effect of statins on the efficacy and prognosis of STEMI patients after emergency PCI.
Methods:
From October 2019 to January 2021, 98 patients with STEMI in our hospital were selected and divided into study group and control group. The study group took atorvastatin 40 mg 2 hours before surgery, 40 mg/day after surgery, and 20 mg/day 1 week later. The control group received 20 mg of atorvastatin every night after admission. The cardiac output, left ventricular ejection fraction, blood flow classification, vagus nerve function, heart rate deceleration force and chemoreflex sensitivity were compared between the two groups, and recorded the incidence of adverse reactions before and after treatment and 3 months after treatment. The number of major adverse cardiac events (MACEs) was also recorded.
Results:
Before treatment, there were no differences in CO, CI, and LVEF between the study and control groups. After treatment, CO, CI, and LVEF in the study group were significantly higher than those in the control group. Before treatment, there was no significant difference in TIMI blood flow classification among the groups, and after treatment, the study group was better than the control group. DC and ChRS were significantly higher in the study group than in the control group. There was no difference in the incidence of adverse reactions between the study group and the control group. However, the incidence of MACE in the study group was lower than that in the control group.
Conclusion:
Enhanced-dose atorvastatin for STEMI patients improved PCI treatment effect, cardiac function, and vagus nerve function and reduced the incidence of adverse cardiac events. Thus, statins are safe and worth considering.
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