Diagnostic Accuracy of Combined Dobutamine Echocardiography and Electrocardiography in Patients with Suspected Chronic Coronary Syndrome

Abdelbasit, Mohamed Salah; Yousry Abd El Hamied, Eslam Mohamed; Gouda, Mohammad; Mohamed ghazal, Kamel Hassan

doi:10.21608/zumj.2024.258846.3074

	Diagnostic Accuracy of Combined Dobutamine Echocardiography and Electrocardiography in Patients with Suspected Chronic Coronary Syndrome
Zagazig University Medical Journal
Articles in Press, Accepted Manuscript, Available Online from 14 January 2024
Document Type: Original Article
DOI: 10.21608/zumj.2024.258846.3074
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Authors
Mohamed Salah Abdelbasit ¹; Eslam Mohamed Yousry Abd El Hamied ²; Mohammad Gouda³; Kamel Hassan Mohamed ghazal⁴
¹Cardiology zagazig university
²Resident of Cardiovascular diseases At Al Ahrar Teaching Hospital
³Assistant Professor
⁴Cardiology departement , faculty of medicine, zagazig university
Abstract
Background: Diagnosis of chronic coronary syndrome is challenging. The role of exercise electrocardiography (ECG) decreased because of many artifacts and low diagnostic accuracy. Therefore, non-invasive stress imaging is the current approved recommendation for diagnosis of chronic coronary syndrome in patients with clinical pre-test probability of more than 15% or 5-15% with high clinical likelihood. Dobutamine echocardiography (Echo) is widely available but with limitations. Therefore, combined dobutamine Echo and ECG could improve the diagnostic accuracy. Methods: We performed a cross sectional study in Zagazig university hospitals in the period between April 2023 and October 2023. We included all patients with suspected chronic coronary syndrome with clinical pre-test probability more than 5%. All patients underwent combined dobutamine Echo and ECG and invasive coronary angiography. Diagnostic accuracy of combined dobutamine Echo and ECG was compared with dobutamine Echo. Results: Among 50 patients suspected chronic coronary syndrome, 37 patients had significant coronary artery disease (CAD) in invasive coronary angiography. As compared with dobutamine Echo, combined Echo and ECG had more favorable sensitivity (97.1% vs 93.5%) and specificity (75% vs 57.9%) for prediction of significant CAD. Conclusions: With better diagnostic accuracy, combined dobutamine Echo and ECG is simple, cheap, and available non-invasive test for diagnosis of chronic coronary syndrome.
Keywords
dobutamine stress echocardiography; exercise ECG; myocardial ischemia


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