1973
DOI: 10.1016/s0022-5223(19)40567-9
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Functional and structural alterations in the myocardium during aortic cross-clamping

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Cited by 55 publications
(3 citation statements)
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“…On the other hand, the functional and structural state of the myocardium and above all the level of energy-rich phosphate compounds in the human heart vary so much from patient to patient, that it is impossible to predict in advance how well any in dividual can withstand ischemia. Therefore, the ischemic-induced arrest, even in com bination with hypothermia, is too dangerous for a patient with a reduced content of myocardial ATP during brief clamping periods and has proven un reliable if the arrest exceeds 50-60 min (8).…”
Section: Introductionmentioning
confidence: 99%
“…On the other hand, the functional and structural state of the myocardium and above all the level of energy-rich phosphate compounds in the human heart vary so much from patient to patient, that it is impossible to predict in advance how well any in dividual can withstand ischemia. Therefore, the ischemic-induced arrest, even in com bination with hypothermia, is too dangerous for a patient with a reduced content of myocardial ATP during brief clamping periods and has proven un reliable if the arrest exceeds 50-60 min (8).…”
Section: Introductionmentioning
confidence: 99%
“…In diesem Temperaturbereich ist der Energiebedarf durch Kardioplegie und Hypothermie so reduziert, daß die Perfusion abgebrochen werden kann: Tierversuche ergaben, daß die praktische Wiederbelebungszeit nach Bretschneider (3) In der Chirurgie des offenen Herzens wird der induzierte Herzstillstand in tiefer, selektiver Hypothermie gegenüber den bislang üblichen Verfahren, wie dem ischämisch induzierten Herzstillstand oder der Perfusion des schlagenden oder flimmernden Herzens, mehr und mehr bevorzugt (1,2,5,18,19,22,23). Es konnte nachgewiesen werden, daß der durch eine Energiemangelinsuffizienz induzierte ischämische Herzstillstand nur sehr kurze Stillstandszeiten gestattet, bei deren Überschreitung eine postoperative myogene Herzinsuffizienz oder die Myokardkontraktur droht (3,5,7,12,20,21).…”
Section: Introductionunclassified
“…Included in these techniques are total body hypothermia, normothermic ischemic arrest, cold cardioplegia using topical application of cold solutions, and continuous or intermittent extracorporeal coronary perfusion at normothermic or hypothermic temperatures. '- 6 These schemes have been employed to decrease the metabolic needs of the heart or maintain normal myocardial oxygenation, or both, during periods when normal coronary perfusion must be interrupted. Burdette',' demonstrated that normothermic anoxic arrest for periods of 15 minutes caused no decisive change in the myocardial ultrastructure, but at 30 minutes there was some marginal clumping of the nuclear chromatin which became pronounced at the end of 45 minutes.…”
mentioning
confidence: 99%