Articles: general-anesthesia.
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Comparative Study Clinical Trial
Epidural versus general anesthesia, ambient operating room temperature, and patient age as predictors of inadvertent hypothermia.
To elucidate the multifactorial nature of perioperative changes in body temperature, the influence of several clinical variables, including anesthetic technique, ambient operating room temperature, and age, were evaluated. Perioperative oral sublingual temperatures were measured in 97 patients undergoing lower extremity vascular surgery randomized to receive either general (GA) or epidural (EA) anesthesia. Surgery and anesthesia were performed in operating rooms (OR) with a relatively warm mean ambient temperature (24.5 +/- 0.4 degrees C) (GA, n = 30; EA, n = 33) or relatively cold mean ambient temperature (21.3 +/- 0.3 degrees C) (GA, n = 21; EA, n = 13). ⋯ The major correlates of greater intraoperative decrease in temperature were 1) GA (P = 0.003); 2) cold ambient OR temperature (P = 0.07); and 3) advancing patient age (P = 0.03). There was significant interaction between ambient OR temperature and type of anesthesia (P = 0.03): there was a greater intraoperative decrease in temperature with GA compared to EA in a cold OR but a similar decrease with GA and EA in a warm OR. The data also suggest an interaction between type of anesthesia and patient age (P = 0.06), showing a greater decrease in temperature with GA compared to EA in the younger patients, but a similar decrease between GA and EA in older patients.(ABSTRACT TRUNCATED AT 250 WORDS)
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J. Oral Maxillofac. Surg. · Aug 1992
Practice Guideline GuidelineThe prevention and treatment of aspiration of vomitus during pharmacosedation and general anesthesia.
The aspiration of gastric contents can occur in patients with a depressed level of consciousness. Pulmonary aspiration is a serious potential complication of pharmacosedation and general anesthesia. ⋯ Treatment of aspiration is dependent on the nature of the aspirate. Identifying aspiration-susceptible patients, employing preventive measures, and using careful anesthetic technique can effectively reduce the risk of aspiration.
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Randomized Controlled Trial Comparative Study Clinical Trial
[General anesthesia vs. retrobulbar anesthesia in cataract surgery. A randomized comparison of patients at risk].
Several studies comparing retrobulbar block (RB) and general anaesthesia (GA) for cataract surgery in the elderly have been published. Most of them were retrospective. Our prospective study was designed in order to determine the benefits or disadvantages using RB or GA. ⋯ Intravenous acetazolamide did not influence ABG in a significant manner. With regard to the preference of each patient, we recommend both RB and GA for cataract surgery in high-risk patients on the assumption of sufficient preoperative treatment of co-existing diseases. In conclusion, cardiovascular and ABG stability were maintained during both anaesthetic techniques.