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Perioperative myocardial infarction diagnosis after coronary artery bypass grafting surgery using coupled electrocardiographic changes and cardiac troponin I

  • Arvin Shahzamani
  • Erfan Sheikhbahaei
  • Shahab Shahabi
  • Mehran ShahzamaniEmail author
  • Helia Hemasian
  • Niayesh Hadi
  • Sara Zamani
Original Article
  • 13 Downloads

Abstract

Purpose

Perioperative myocardial infarction (PMI) is one of the most common causes of prolonged intensive care unit (ICU) and hospital stay after coronary artery bypass grafting (CABG) and is associated with poor prognosis and increases postoperative mortality due to the lack of accurate diagnostic methods. This study examines the association between electrocardiography (ECG) ischemic changes and cardiac troponin I concentration.

Methods

In this cross-sectional study, the ECG of 100 patients was recorded before and 24 h after the surgery. The cardiac troponin I concentration was measured 24 h after the termination of the surgery.

Results

The average concentration of troponin I was 6.79 μg/L in the no-ECG-changes group, 11.69 μg/L in the ST depression group, 11.26 μg/L in the ST elevation group, and 27.54 μg/L in the new Q wave group. The mean troponin concentration was significantly higher in the ECG-changes group compared to no-ECG-changes group. Comparing the ECG-changes together showed significant differences between the new Q wave and the other changes. ST elevation and ST depression were not statistically significant.

Conclusion

The three ECG-changes groups had a higher risk of PMI after their CABG. The risk of PMI was at its highest value in the new Q wave group and at its lowest in the no-ECG-changes group.

Keywords

Myocardial infarction Troponin I Electrocardiography 

Notes

Acknowledgements

We would like to express our gratitude to Dr. Masoumi, cardiac anesthesiologist at the Chamran Heart Center of Isfahan, for his assistance and contribution to the project and acknowledge Mr. Amir Salar Moazen Safaei for Proofreading this manuscript.

Authors’ contributions

Arvin Shahzamani, Erfan Sheikhbahaei, Niayesh Hadi and Sara Zamani (preparing, editing, reviewing the manuscript, data acquisition, and review of literature), Shahab Shahabi (data acquisition and data analysis and reviewing the manuscript), Mehran Shahzamani (original idea, surgeon of the project, data acquisition, editing the manuscript), and Helia Hemasian (project methodology, preparing, editing, and reviewing the manuscript).

Compliance with ethical standards

Ethics approval and consent for participate

This study was carried out with an ethics approval from the Department of Ethics of the School of Medicine of Isfahan University of Medical Sciences. Informed written consent was obtained from all the patients. There were no interventions or disadvantages for the participants.

Consent for publication

The researchers refrain from using the confidential data of the participants and will not reveal and figures in their reports. All publication rights are transferred to the Indian journal of thoracic and cardiovascular surgery.

Competing interests

The authors declare that they have no conflict of interests.

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Copyright information

© Indian Association of Cardiovascular-Thoracic Surgeons 2018

Authors and Affiliations

  • Arvin Shahzamani
    • 1
  • Erfan Sheikhbahaei
    • 2
  • Shahab Shahabi
    • 3
  • Mehran Shahzamani
    • 4
    Email author
  • Helia Hemasian
    • 5
  • Niayesh Hadi
    • 1
  • Sara Zamani
    • 1
  1. 1.School of MedicineIsfahan University of Medical SciencesIsfahanIran
  2. 2.Cardiovascular Research Institute, Student Research Committee, School of MedicineIsfahan University of Medical SciencesIsfahanIran
  3. 3.Department of Surgery, Laparoscopic Surgery Fellowship, Alzahra University Hospital, School of MedicineIsfahan University of Medical SciencesIsfahanIran
  4. 4.Department of Surgery, Chamran Heart Center and University Hospital, School of MedicineIsfahan University of Medical SciencesIsfahanIran
  5. 5.Alzahra University Hospital, School of MedicineIsfahan University of Medical SciencesIsfahanIran

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