Journal of anesthesia
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Journal of anesthesia · Jan 2004
Randomized Controlled Trial Comparative Study Clinical TrialComparison between a disposable and an electronic PCA device for labor epidural analgesia.
The aims of the present study were (1) to investigate if a disposable patient-controlled analgesia (PCA) device can be used for labor analgesia and (2) to evaluate the device by midwives and parturients. ⋯ The present results imply that the disposable PCA device can be an alternative to the electronic PCA device for labor analgesia.
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Journal of anesthesia · Jan 2004
Randomized Controlled Trial Comparative Study Clinical TrialA comparison of postoperative sore throat after use of laryngeal mask airway and tracheal tube.
We compared the degree of postoperative sore throat (PST) after use of a laryngeal mask airway (LMA; by two insertion techniques) and a tracheal tube (TT) in adult patients. ⋯ In the conditions of our study, LMAs inserted with the cuff either fully inflated or deflated worsened PST compared with TTs.
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Journal of anesthesia · Jan 2004
Randomized Controlled Trial Clinical TrialIsoflurane increases, but sevoflurane decreases blood concentrations of melatonin in women.
The blood concentrations of melatonin are elevated by stress-induced sympathetic nerve excitation and are affected by some anesthetics. Isoflurane has an effect to increase sympathetic nerve activity when compared with sevoflurane. This study was performed to investigate the effects of these two anesthetics on the blood concentrations of melatonin. ⋯ We obtained blood samples before and 5 min after 5% isoflurane (ISO group) or 7% sevoflurane (SEV group) anesthesia. The blood melatonin concentrations during anesthesia in the ISO group increased significantly, from 65 +/- 60 to 170 +/- 90 pg x ml(-l); mean +/- SD ( P < 0.05), whereas those in the SEV group decreased, from 60 +/- 50 to 30 +/- 30 pg x ml(-l) ( P < 0.05). In conclusion, isoflurane increases, but sevoflurane decreases blood melatonin concentrations.
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Journal of anesthesia · Jan 2004
Randomized Controlled Trial Clinical TrialSafety and beneficial effect on body core temperature of a prewarmed plasma substitute--hydroxyethyl starch--during anesthesia.
We investigated, first, the safety of use and stability of a plasma substitute-hydroxyethyl starch (HES)-kept in a warming cabinet for a long period, and then the effect on body core temperature of the prewarmed HES in patients during urological surgery. ⋯ The use of HES products kept in a warming cabinet prior to surgery can maintain warm body temperature, easily, safely, and effectively.
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Journal of anesthesia · Jan 2004
Randomized Controlled Trial Clinical TrialEffects of oral atenolol on volatile anesthetic induction with sevoflurane in adults.
To determine whether premedication with a beta-blocker can bring about a more rapid and smooth induction of anesthesia, we investigated the effect of oral premedication with atenolol on volatile anesthetic induction with sevoflurane by monitoring the cardiac output (CO) and bispectral (BIS) index. ⋯ Oral premedication with 25 mg of atenolol provides a more rapid decrease in BIS index and is recommended for use in stable volatile anesthetic induction with sevoflurane.