A new technique for measuring aortic root pressure during infusion of cardioplegic solution

Aortic root pressure is an important factor in determining the distribution of cardioplegic solutions. Previously, in order to measure this parameter, it was necessary to insert a separate catheter into the aortic root during cardioplegic infusion. An alternative method for measuring aortic root pressure is described that is both simple and accurate and obviates the need for a second aortic root catheter.