Cardiac Pacemakers

Device-based impedance measurement is a useful and accurate tool for direct assessment of intrathoracic fluid accumulation in heart failure

“…The influence of the electrode surrounding tissue is minimized, and thus this approach reflects more precisely the real transthoracic impedance. 19 So, the tripolar configuration described here potentially leads to better specificity and sensitivity for detection of developing HF. The correlation was not linear over the whole range tested; for high values of lung water (EVLW .…”