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NCT02810106: Perfusão

Assessment of Myocardial Perfusion by Tomography and Scintigraphy in Patients With Cardiac Stress Test With Ischemia

Completed Last updated 5 November 2020
What this trial tests

trial in Myocardial Perfusion in 60 participants. Completed in 1 November 2020.

Timeline
1 July 2017
Primary endpoint
1 February 2020
1 November 2020

Quick facts

Lead sponsorUniversity of Sao Paulo General Hospital
StatusCompleted
Study typeOBSERVATIONAL
Enrollment60
Start date1 July 2017
Primary completion1 February 2020
Estimated completion1 November 2020
Sites1 location across Brazil

Conditions studied

Sponsor

University of Sao Paulo General Hospital

Who can join

Adults 18 to 90, any sex, with Myocardial Perfusion. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

Cardiovascular diseases are important cause of death, and of these have highlighted the Coronary Artery Disease (CAD) and its various clinical manifestations. The chest pain suggestive of ischemic heart disease is frequent complaint in medical consultations and hospitalizations . Complementary tests and images exams for risk stratification as Cardiac Stress Test (ET), the Myocardial Perfusion scintigraphy of (SPECT) are established for risk stratification and assessment workup in suspected ischemic heart disease. Coronary tomography angiography (CTA) has emerged as a robust method for non-invasive assessment of CAD, showing data diagnostics that directly correlate with invasive coronary angiography. Recently, the Myocardial Perfusion by Tomography Computed (CTP) has emerged as a new technique to measure the flow limitation for coronary microcirculation. In clinical practice, the exercise testing with electrocardiogram changes compatible with myocardial ischemia can lead to other examinations for elucidation of ischemic etiology, the most usual myocardial scintigraphy. However, a SPECT without evidence of ischemia, does not explain ischemic electrocardiographic changes triggered by physical stress, although it is a good marker prognostic. A CTP is a emerging tool in the evaluation of myocardial ischemia. Recent studies point to a good accuracy of the method compared to nuclear medicine. To test this hypothesis, this study aims to evaluate whether the CTP has a better diagnostic performance in detecting of obstructive or not obstructive CAD compared to the SPECT in the population of patients with exercise stress testing compatible with myocardial ischemia, and the computed tomography angiography (CTA) as the reference method. In addition, data from the exercise test (functional capacity, hemodynamics, electrocardiogram changes) will be compared to findings of CTA and CTP.

Publications & conference data

No peer-reviewed publications indexed yet for this trial. Completed trials usually publish results within 12-18 months.

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Other University of Sao Paulo General Hospital trials

Trials by the same sponsor.

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