Role of strain imaging for assessment of myocardial viability in symptomatic myocardial infarction with single vessel disease: An observational study

• Published in: Echocardiography (Mount Kisco, N.Y.) N.Y.), 2020-01, Vol.37 (1), p.55-61
• Main Authors: Bhutani, Mohit, Vatsa, Deepankar, Rahatekar, Parag, Verma, Deepak, Nath, Ranjit K., Pandit, Neeraj
• Format: Article
• Language: English
• Subjects: dobutamine stress echocardiography; myocardial viability; strain imaging
• ISSN: 0742-2822; 1540-8175
• DOI: 10.1111/echo.14567

Purpose To study and evaluate the predictive value of strain imaging parameters in patients undergoing viability assessment postmyocardial infarction (MI) in comparison with Dobutamine stress echocardiography (DSE) alone. Methods This was a prospective observational study (October, 2016–March, 2018), which recruited 100 symptomatic patients with MI, and angiographically proven single vessel disease, LV dysfunction with severe hypokinesia/akinesia on 2D echocardiography and viability proven by baseline DSE. Patients undergoing primary PCI were excluded. Patients were recruited in two groups: DSE alone (first group) and strain imaging with DSE (second group). Revascularization was done in all patients. Patients were assessed at 3 months for functional recovery by 2D echocardiography. Results On 3 month follow‐up after revascularization, 37 patients (74%) in first group and 33 patients (66.67%) in second group had functional recovery. Dobutamine‐stimulated strain parameters such as circumferential strain (CS; P = .005), radial velocity (RV; P