Journal of clinical anesthesia
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Controlled Clinical Trial
The importance of blood sampling site for determination of hemoglobin and biochemistry values in major abdominal and orthopedic surgery.
To determine whether sampling of blood from different sites influences laboratory results. ⋯ Under stable hemodynamics and in the absence of hypothermia, serum lactate level was higher in peripheral venous blood than it was in the central vein or radial artery.
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Randomized Controlled Trial
Preadministration of flurbiprofen suppresses prostaglandin production and postoperative pain in orthopedic patients undergoing tourniquet inflation.
To evaluate the effect of preadministration of flurbiprofen on the plasma concentrations of prostaglandin E2 (PGE2) and postoperative pain. ⋯ Preadministration of flurbiprofen suppresses the local production of PGE2 during tourniquet ischemia, resulting in reduced early postoperative pain in patients undergoing knee surgery.
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Randomized Controlled Trial
Pain prevention with intraoperative ketamine in outpatient children undergoing tonsillectomy or tonsillectomy and adenotomy.
To evaluate the effectiveness of ketamine in the prevention of postoperative pain after tonsillectomy. ⋯ Ketamine decreases postoperative analgesic requirements and has analgesic effects when used before surgery in tonsillectomy/adenotonsillectomy.
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Randomized Controlled Trial
Effect of low tidal volume ventilation on atelectasis in patients during general anesthesia: a computed tomographic scan.
To determine whether low tidal ventilation in patients without lung injury results in an increase in the amount of atelectasis and a further impairment of gas exchange during general anesthesia. ⋯ Ventilation using low V(T)s does not cause more pulmonary collapse than mechanical ventilation using standard V(T)s.
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Review Historical Article
Nitrous or nitric? Same difference. Molecular formulas in the 1840s.
The molecular formulas given by James Y. Simpson for nitrous oxide, diethyl ether, and chloroform are difficult to interpret today. ⋯ The nitrous oxide formula was incorrect owing to confusion with Dalton's nitrous gas, now termed nitric oxide. The Simpson formulas illustrate that inhaled anesthesia arrived at the time of a cusp in the history of chemistry.