Aichi Gakuin Daigaku Shigakkai shi
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Aichi Gakuin Daigaku Shigakkai Shi · Jun 1989
[Effects of intravenous injections of lidocaine on hemodynamics and catecholamine levels during endotracheal intubation in infants and children].
It is known that during anesthesia, administering medication and endotracheal intubation often cause stress for the patient which induces sthenia of the endocrinal system as well as changes in hemodynamics, sometimes leading to further systemic complications. Various changes in hemodynamics caused by endotracheal intubation in infants and children were studied, including tachycardia and increased blood pressure. Changes in catecholamine levels in blood plasma and in cardiovascular parameters were observed, with patients divided into two groups for comparison. ⋯ The results also indicate that systemic complications during the induction of general anesthesia may be due to an increased secretion of endogenous catecholamines. These results further suggest that an intravenous injection of lidocaine is not effective in suppressing the increase of catecholamines in the plasma during endotracheal intubation. The intravenous injection of lidocaine, however, inhibits tachycardia and also inhibits the increase in blood pressure often caused by endotracheal intubation, and also serves to reduce the general oxygen demand in the cardiac tissue.