Related Experiment Video
Updated: Jul 13, 2026
Postconditioning with Lactate-enriched Blood for Cardioprotection in ST-segment Elevation Myocardial Infarction
Published on: May 28, 2019
Impact of electrical neurostimulation on persistent ST elevation after successful reperfusion by primary percutaneous
Jessica de Vries1, Tone Svilaas, Mike J L DeJongste
1Department of Cardiology, Thoraxcenter, University Medical Centre Groningen, University of Groningen, Groningen, The Netherlands. j.de.vries@thorax.umcg.nl
Insights
Electrical neurostimulation can significantly reduce ST elevation in ST-elevation myocardial infarction (STEMI) patients post-primary percutaneous coronary intervention (PCI). This approach is particularly effective for patients with substantial ST elevation on their initial electrocardiogram (ECG).
Area of Science:
- Cardiology
- Medical Devices
- Electrophysiology
Background:
- ST-elevation myocardial infarction (STEMI) remains a leading cause of cardiac mortality.
- Residual ST elevation after primary percutaneous coronary intervention (PCI) indicates ongoing myocardial injury and predicts worse outcomes.
- Effective strategies to further reduce ST elevation post-PCI are crucial for improving patient prognosis.
Purpose of the Study:
- To investigate the efficacy of electrical neurostimulation in reducing ST segment elevation in STEMI patients with residual ST elevation after primary PCI.
- To assess the impact of electrical neurostimulation timing and patient response on ST elevation reduction.
Main Methods:
- A study involving 38 STEMI patients who underwent primary PCI.
- Patients were divided into two groups: one receiving immediate active neurostimulation, the other receiving active neurostimulation after a nonactive period.
- Electrocardiograms (ECGs) were used to measure ST segment elevation before and after neurostimulation interventions.
Main Results:
- Electrical neurostimulation led to a significant reduction in ST elevation in both groups.
- Group 1 showed a decrease from 0.65 +/- 0.56 to 0.50 +/- 0.52 (P = .01) with neurostimulation.
- Group 2 demonstrated a reduction from 0.37 +/- 0.32 to 0.28 +/- 0.27 (P = .01) with neurostimulation.
- Posthoc analysis revealed that patients with higher initial ST elevation (responders) experienced greater reduction.
Conclusions:
- Electrical neurostimulation offers a potential adjunctive therapy for reducing ST elevation in STEMI patients after reperfusion.
- The treatment appears most beneficial for patients exhibiting significant ST elevation on the initial ECG post-primary PCI.
- Further research may explore optimizing neurostimulation protocols for STEMI management.
Aims:
To study the effect of electrical neurostimulation on the ST segment shift in patients with ST elevation myocardial infarction (STEMI) with residual ST elevation after primary percutaneous coronary intervention (PCI).
Methods:
After primary PCI, 38 patients with STEMI were divided into 2 groups. Group 1 received 15 minutes of active neurostimulation after the baseline electrocardiogram (ECG); group 2 received 15 minutes of active neurostimulation after 15 minutes of nonactive neurostimulation.
Results:
In group 1, ST elevation decreased with neurostimulation from 0.65 +/- 0.56 to 0.55 +/- 0.51 (P = .02) and to 0.50 +/- 0.52 (P = .01) without electrical neurostimulation. In group 2, ST elevation changed without neurostimulation from 0.37 +/- 0.32 to 0.33 +/- 0.30 (P = NS) and to 0.28 +/- 0.27 (P = .01) with electrical neurostimulation. In a posthoc analysis, 17 responders had higher ST elevation at the ECG before active electrical neurostimulation than 21 nonresponders (P = .001).
Conclusion:
Electrical neurostimulation may result in significant additional reduction of ST elevation in STEMI after reperfusion treatment, in particular in patients with marked ST elevation on the first ECG after successful primary PCI.
