Clinical trial NCT04970017: Correlation Between Left Ventricular Global Strain Measured by Speckle Tracking Echocardiography and Scar Burden Measured by Cardiac Magnetic Resonance Imaging in Patients With Ischemic Heart Disease
Official title: Correlation Between Left Ventricular Global Strain Measured by Speckle Tracking Echocardiography and Scar Burden Measured by Cardiac Magnetic Resonance Imaging in Patients With Ischemic Heart Disease
Study type: OBSERVATIONAL
Overall status: UNKNOWN
Conditions: Ischemic Heart Disease
Lead sponsor: Assiut University
Sponsor class: OTHER
First posted: 2021-07-21
Enrollment: 51
Sex: ALL
Standard ages: CHILD
ADULT
OLDER_ADULT
Observational model: CASE_ONLY
Time perspective: CROSS_SECTIONAL
Sampling method: NON_PROBABILITY_SAMPLE
Study population: Patients presenting for viability assessment in to cardiac MRI unit, Assiut university heart hospital, with a history of previous stemi, at least 3 months after the acute event ( scar stabilization) and up to one year

Brief summary: To verify whether GLS and LV mechanical dispersion, measured by two-dimensional speckle-tracking echocardiography (2D-STE) correlate with LV scar burden measured by cardiac MRI in patients with ischemic heart disease.

Detailed description: Evaluation of presence, localization, and extent of left ventricular(LV) scar tissue in patients with ischaemic heart disease (IHD) is of fundamental importance in clinical practice. It affects the decision making regarding revascularization and is a determinant of subsequent mortality. (Mele, Fiorencis et al. 2016) Late gadolinium contrast-enhanced cardiac magnetic resonance (LGE-CMR) is considered the current gold standard technique for assessment of the scar burden in IHD patients. However, it is not readily accessible in many areas due to availability and cost issues.(Abou, Prihadi et al. 2020), (Bendary, Afifi et al. 2019) Several recent studies suggested 2-D speckle tracking strain as a potential surrogate for cardiovascular magnetic resonance (CMR) late gadolinium enhancement (LGE) imaging. This would be useful in cases where CMR is not available, gadolinium contrast is contraindicated, or in patients at greater risk of adverse long term events. (Erley, Genovese et al. 2019) Among echocardiography derived strain measurements, global longitudinal strain (GLS) was shown to be superior to global circumferential strain (GCS) in its ability to detect subtle myocardial abnormalities due to better reproducibility (Erley et al, 2019). Left ventricular mechanical dispersion (LVMD) is also considered a valuable parameter that was associated with outcomes after myocardial infarction. (Abou, Prihadi et al. 2020).

Despite the growing number of strain related studies in the literature, it is not clear whether the relationship of strain measurements with LGE is strong enough for strain to be considered as a surrogate. (Erley, Genovese et al. 2019). Also, the differences between GLS and LV MD among strain components in this context are not well established.

Eligibility criteria: Inclusion Criteria:

* • Patients presenting for viability assessment in to cardiac MRI unit, Assiut university heart hospital, with a history of previous stemi, at least 3 months after the acute event ( scar stabilization) and up to one year

Exclusion Criteria:

* Patients with:

  * Contraindication to cardiac MRI (claustrophobia, Patients with eGFR below 30 mL/min/1.73 m2. and patients with metallic implants)
  * Non-ischemic cardiomyopathy.
  * Valvular heart disease (VHD).

Primary outcomes:
measure: Scare burden by echocardiography
timeFrame: One year
Secondary outcomes:
measure: Value of spickle tracking echocardiography in clinical practice
timeFrame: One year
Other outcomes:
Locations:
city: Assiut
country: Egypt
facility: Assiut university
Study officials:
affiliation: Assiut University
name: Mohamed Abdellatif
role: PRINCIPAL_INVESTIGATOR
References: