Masui. The Japanese journal of anesthesiology
-
Hypotension is a common adverse effect of spinal anesthesia (SA). Preoperative fluid infusion is recommended to prevent hypotension during caesarean section. The aim of this study is to document relationship between preoperative total body water (TBW) and the amount of the vasopressors given intraoperatively and to evaluate the change of maternal body water composition (BWC). ⋯ Preoperative TBW does not affect the amount of vasopressors given during caesarean section, which suggested massive fluid infusion can not always prevent hypotension after SA. A slight changes in TBW and ECW may be induced by SA, while the exact physiological and clinical significance of these observation remains to be elucidated.
-
Ketamine is associated with an increase in the bispectral index (BIS) values that can lead to an overdose of hypnotic agents. We investigated the effect of ketamine on BIS values during general anesthesia with a target-controlled infusion (TCI) of propofol and infusion of remifentanil. ⋯ Under stable propofol and remifentanil anesthesia, a small dose of ketamine did not increase the BIS value over the next 15 min.