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International Journal of Cardiovascular ResearchISSN: 2324-8602

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Research Article, Int J Cardiovas Res Vol: 5 Issue: 6

Global Longitudinal Strain in Patients with Unexplained Dyspnea and Normal Diastolic Function at Rest

Mona A. ELSaidy, Mohamed Abdelaal* and Ayman ELSheikh
Cardiology Department, Tanta University Hospital, Egypt
Corresponding author : Mohamed Abdelaal
Cardiology Department, Tanta University Hospital, Egypt
E-mail: [email protected]
Received: September 06, 2016 Accepted: October 13, 2016 Published: October 17, 2016
Citation: ELSaidy MA, Abdelaal M, ELSheikh A (2016) Global Longitudinal Strain in Patients with Unexplained Dyspnea and Normal Diastolic Function at Rest. Int J Cardiovasc Res 5:7. doi:10.4172/2324-8602.1000289

Abstract

Dyspnea is a subjective feeling of difficulty of breath and could be due to many causes. If no cause is found on clinical examination the term unexplained dyspnea is applied. Aim of the work: to evaluate patients with unexplained dyspnea with global longitudinal strain at rest and with dobutamine stress echocardiography. Methods: 43 patients with dyspnea were included in the study. They were divided into 2 groups: group one included 30 patients and group two included 13 patients. All patients have normal baseline echocardiography and negative dobutamine stress echocardiography for ischemic heart disease. Patients were then checked with global longitudinal strain (GLS) at rest and after DSE. Results: patients in group two showed reduced GLS after DSE (12 ± 1%) than in group one (19 ± 1%) p>0.05. They have also high triglyceride level, higher body mass index and lower levels of HDL as compared to patients in group one. Conclusion: GLS seems to be a good parameter to study patients with unexplained dyspnea who will develop symptoms and high filling pressure on stress.

Keywords: Dyspnea; Dobutamine infusion; Echocardiography; Diastolic dysfunction; Coronary artery disease

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