Although we believed that the use of a polyester film drape for primary ele
ctive open sternum with delayed sternal closure made it impossible to recor
d precordial electrocardiograms on the drape, we confirmed that it is possi
ble to record electrocardiograms on an iodine-impregnated drape due to the
iodine anion electrical conductibility. (Ann Thorac Surg 1999;67:1184-5) (C
) 1999 by The Society of Thoracic Surgeons.