Cardiac Resynchronization and Iodine Meta-Iodobenzylguanidine (MIBG) Imaging
Status:
Terminated
Trial end date:
2016-02-01
Target enrollment:
Participant gender:
Summary
Subjects were recruited if their healthcare provider decided that they needed treatment with
a special Internal Cardiac Defibrillator (ICD) called a biventricular ICD. The investigators
did this study to see if part of the nerve organ, called the sympathetic nervous system, may
be responsible for the improvement seen in patients that receive biventricular pacing. The
investigators had three ways to measure sympathetic nervous activity: 1) by using a special
blood sample, 2) by monitoring heart rhythm, and 3) by performing a special heart scan.