Puri, G DKrishna, PChari, PSingh, G J1998-07-122009-05-271998-07-122009-05-271998-07-12Puri GD, Krishna P, Chari P, Singh GJ. Oxygenation of crystalloid cardioplegia. Annals of Cardiac Anaesthesia. 1998 Jul; 1(2): 56-8http://imsear.searo.who.int/handle/123456789/1579A simple economical apparatus for oxygenation of cold crystalloid cardioplegic solutions is presented. It is sterile, practically feasible for use in open heart surgery, provides a PO2 of 98.7 kPa and sustains it for a period of more than 20 minutes.engJournal Article