Less-invasive cardiac output monitoring by earpiece densitometry.
Cardiac output was measured by thermodilution and ear densitometry in surgical ICU patients who had pulmonary arterial catheters. Overall comparison based on 56 sets of triplicate measurements revealed a correlation coefficient (r) of 0.76 between the two techniques. Although ear densitometry was more accurate with injection via the antecubital vein (r = 0.88) vs. more distal injection (r = 0.67), these data suggest that this technique lacks the accuracy for clinical application.
R C
RC
Grasberger
N S
NS
Yeston
D001783:Blood Flow Velocity; D002302:Cardiac Output; D003720:Densitometry / Q000295:instrumentation / Q000379:methods*; D004423:Ear / Q000098:blood supply; D004867:Equipment Design; D006801:Humans; D007208:Indocyanine Green; D008991:Monitoring, Physiologic / Q000295:instrumentation / Q000379:methods*; D013815:Thermodilution / Q000379:methods
D007208:Indocyanine Green