J.Jpn. Surg. Soc.. 83(7): 624-634, 1982
Original article
STUDIES ON PRE- AND POSTOPERATIVE HEMODYNAMIC CHANGES IN PATIENTS WITH ESOPHAGEAL CANCER
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Department of Surgery, School of Medicine, Keio University N. Ando, H. Yonekawa, Y. Shinozawa, Y. Watanabe, A. Ohshima, H. Suzuki, H. Ohtaka, M. Fujisaki, Prof. O. Abe |
Preoperative hemodynamic characteristics were hypodynamic, especially, cardiac output of the aged group was significantly lower than that of the middle aged group. Analysing preoperative hemodynamics in relation to the nutritional states of the patients, the patients who had given total parenteral nutrition showed normal ranges of cardiac output and overall cardiac function in contrast to depressed cardiac function seen in patients without TPN. Remarkable hemodynamic changes in the perioperative periods occured in 71% of cases, indicating esophageal cancer surgery to be a severe surgical stress. In the perioperative period, all of the aged patients showed remarkable hemodynamic changes, while hemodynamic status was stable in one half of the middle aged patients. In cases in which left ventricular functions had been depressed or systemic vascular resistances had rised remarkably in the perioperative period, the incidence of pulmonary complications was greater as compared to the cases in which hemodynamics had not changed.
Thus, respiratory factors and circulatory factors are closely related to each other, and in aged cases the factors leading pulmonary complications are induced, if ever, immediately after the operation.
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