Do interleukin-1β levels correlate with MIBG and exercise parameters in heart failure?

Background: Interleukin 1β (IL 1β) levels are associated with prognosis in heart failure. The cardiac adrenergic activity as assessed by metaiodobenzylguanidine (I123 MIBG) scintigraphy along with exercise parameters are important predictors of prognosis. The relationship between these variables is not fully established.

Is abnormal adrenergic activation associated with abnormal Heart Rate Recovery?

Background: Heart Rate Recovery (HRR) reflects the capacity of the cardiovascular system to reverse the vagal withdrawal caused by exercise. Scintigraphy with metaiodobenzylguanidine (I(123) MIBG) evaluates innervation and cardiac adrenergic activation. The association of these two methods is not well established.

Relationship between cardiac adrenergic image and exercise testing in heart failure.

Background: The exercise treadmill test can be used in ventricular dysfunction patients for functional capacity or predicting prognosis. The cardiac image with 123I MIBG shows cardiac sympathetic activation.

Objective: To evaluate the relationship between exercise treadmill test variables and cardiac image changes in 123I MIBG.