Observational study of left ventricular global longitudinal strain in ST-segment elevation myocardial infarction patients with extended pharmaco-invasive strategy: A six months follow-up study

Satvic C. Manjunath, Balaraju Doddaiah, Rajiv Ananthakrishna, Sridhar Lakshmana Sastry, Vikram S. Patil, Lachikrathman Devegowda, Sumangala B. Veervhadraiah, Prabhavathi bhat, Cholenahally Nanjappa Manjunath

Research output: Contribution to journalArticlepeer-review

Abstract

Aims and Objectives: To evaluate left ventricular (LV) function by assessment of LV global longitudinal strain (GLS) in ST-segment elevation myocardial infarction (STEMI) patients who underwent delayed fibrinolysis and coronary intervention (extended pharmaco-invasive strategy), since LV function is one of the determinants of both immediate and long-term outcomes. Methods: Prospective study of consecutive STEMI patients who underwent extended pharmaco-invasive strategy. The LV function was estimated using LV GLS at baseline and at 6 months. Results: The study included eighty-seven STEMI patients who received delayed pharmaco-invasive therapy and coronary intervention. The primary aim of the study was to evaluate a change in LV function by assessment of GLS at 6 months as compared to baseline. Prior to PCI, LV ejection fraction was 48.08 ± 6.23% and GLS was −11.11 ± 2.99%. Procedural success was achieved in all patients. LV ejection fraction after 6 months of follow-up increased to 53.12 ± 5.61% and the GLS improved to −13.03 ± 3.06% In comparison to baseline, there was a significant improvement in both LV ejection fraction and GLS at 6 months of follow-up (P <.001).The cardiac mortality was 1.1% at 6 months. Conclusion: There is a significant improvement of LV function as assessed by GLS and ejection fraction at short-term follow-up. In a stable cohort of STEMI patients, extended pharmaco-invasive strategy is also a reasonable option if PCI cannot be performed within the first 24 hours, due to logistic and infrastructural constraints.

Original languageEnglish
Pages (from-to)283-292
Number of pages10
JournalEchocardiography
Volume37
Issue number2
DOIs
Publication statusPublished or Issued - 1 Feb 2020

Keywords

  • ST-segment elevation myocardial infarction
  • extended pharmaco-invasive therapy
  • global longitudinal strain
  • left ventricular function
  • percutaneous coronary intervention

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Cardiology and Cardiovascular Medicine

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