PMID- 3348490 OWN - NLM STAT- MEDLINE DCOM- 19880418 LR - 20170214 IS - 0003-3197 (Print) IS - 0003-3197 (Linking) VI - 39 IP - 2 DP - 1988 Feb TI - High 2,3-DPG blood cardioplegia and myocardial preservation during cardiopulmonary bypass. PG - 123-31 AB - Blood may provide superior cardioplegia compared with crystalloid cardioplegic solution. However, the results are controversial. This may be due to a leftward shift of the hemoglobin (Hb)-O2 dissociation curve induced by hypothermia, increasing the oxygen affinity for Hb. This effect may negate the potential benefit of blood cardioplegia. The oxygen affinity for Hb can be decreased by increasing the red cell 2,3-diphosphoglycerate (2,3-DPG), and hence, more oxygen can be delivered to the myocardium. The present investigation was undertaken to study the effects of 2,3-DPG-enriched blood cardioplegia on the functional recovery of the myocardium and changes in the coronary sinus red blood cell (RBC) adenosine-triphosphate (ATP), lactate, and RBC DPG after one and a half hours of reperfusion following one hour of ischemic cardiac arrest in dogs. The dogs were divided into three groups: crystalloid (CR); stored blood (SB), and high 2,3-DPG blood (HDPG) cardioplegic groups. Incubation of canine RBC in phosphoenal pyruvate (PEP) led to a 36% increase in DPG and a rightward shift in the Hb-O2 dissociation curve. There was a 4 mm Hg shift in the P50. When compared with the CR group, there was a significant decrease in the cardiac index (CI) and left ventricular work index (LVWI) and a significant increase in the total systemic vascular resistance (TSVR) in the SB group. The CI and LVWI of the HDPG group were similar to those of the CR group, but the TSVR was significantly greater in the former group. The LVWI was significantly greater and the TSVR smaller in the HDPG group as compared with those in the SB group.(ABSTRACT TRUNCATED AT 250 WORDS) FAU - Card, R T AU - Card RT AD - Department of Physiology, College of Medicine, University of Saskatchewan, Saskatoon, Canada. FAU - Prasad, K AU - Prasad K FAU - Bharadwaj, B AU - Bharadwaj B FAU - Hnatuk, L A AU - Hnatuk LA FAU - MacFadyen, M A AU - MacFadyen MA LA - eng PT - Comparative Study PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - United States TA - Angiology JT - Angiology JID - 0203706 RN - 0 (Diphosphoglyceric Acids) RN - 0 (Hemoglobins) RN - 0 (Lactates) RN - 0 (Potassium Compounds) RN - 0 (potassium cardioplegic solution) RN - 138-81-8 (2,3-Diphosphoglycerate) RN - 8L70Q75FXE (Adenosine Triphosphate) RN - RWP5GA015D (Potassium) SB - IM MH - 2,3-Diphosphoglycerate MH - Adenosine Triphosphate/blood MH - Animals MH - *Blood MH - Blood Preservation MH - *Cardiopulmonary Bypass MH - Coronary Vessels MH - *Diphosphoglyceric Acids MH - Dogs MH - Erythrocytes/metabolism MH - Female MH - Heart/*physiology MH - Heart Arrest, Induced/*methods MH - Hemodynamics MH - Hemoglobins/analysis MH - Humans MH - Lactates/blood MH - Male MH - Myocardium/metabolism MH - Potassium MH - *Potassium Compounds MH - Veins EDAT- 1988/02/01 00:00 MHDA- 1988/02/01 00:01 CRDT- 1988/02/01 00:00 PHST- 1988/02/01 00:00 [pubmed] PHST- 1988/02/01 00:01 [medline] PHST- 1988/02/01 00:00 [entrez] AID - 10.1177/000331978803900201 [doi] PST - ppublish SO - Angiology. 1988 Feb;39(2):123-31. doi: 10.1177/000331978803900201.