1. Blood-loss after cardiopulmonary bypass;Bentall, H.H.; Smith, B.; Omeri, M.A.; Melrose, D.G.; Allwork, S.;Lancet,1964
2. cases with open pericardium who required reoperation for continued excessive bleeding we found clots around the heart. Similar experience was also reported by others;al., 1968, Hill;Journal of Thoracic and Cardiovascular Surgery; Postoperative pericardial adhesions-the role of mild serosal injury and spilled blood,1973
3. Craddock, D. R., Logan, A., and Fadali, A. (1968). Reopera-
4. Surprisingly no blood was found in the pericardial cavity of the patients in the closed pericardium group who required reoperation for persistent bleeding. Cunningham tion for haemorrhage following cardiopulmonary bypass;Engelman,1970
5. Influence of primary closure of the pericardium after openheart;Cunningham, Jr., J.N.; Spencer, F.C.; Zeff, R.; Williams, C.D.; Cukingnan, R.; Mullin, M.;et al; reported a similar experience in a group of 100 patients, 5 of whom required reoperation for excessive blood loss,1975