Journal of anesthesia
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Journal of anesthesia · Aug 2016
Randomized Controlled Trial Comparative StudyHyperoxic oxidative stress during abdominal surgery: a randomized trial.
The hypothesis of our study is that during anesthesia, administration of 80 % oxygen concentration increases oxidative stress more than 40 % oxygen. ⋯ We found that 80 % FiO2 decreased ETV and PaO2/FiO2 and increased lactate levels and oxidative stress more, inhibiting antioxidant response compared to 40 % FiO2.
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Journal of anesthesia · Aug 2016
Lateral deviation of four types of epidural catheters from the lumbar epidural space into the intervertebral foramen.
During epidural anesthesia, the catheter tip occasionally deviates from the epidural space into the intervertebral foramen, resulting in inadequate anesthesia. ⋯ The incidence of deviation was significantly lower with spiral-type catheters than with other types of catheters. This might be attributable to the gradual transmission of a lower level of force to the tip in spiral-type catheters.
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Journal of anesthesia · Aug 2016
Case ReportsUnintentional epidural placement of a thoracic paravertebral catheter inserted using an ultrasound-guided technique: a case report.
This is the first case report describing the epidural misplacement of an infusion catheter, which was intended to be located in the thoracic paravertebral space using an ultrasound-guided technique. The patient was a 57-year-old female undergoing a laparoscopy-assisted left partial nephrectomy. Before surgery, a Tuohy needle was inserted into the paravertebral space at the left ninth intercostal space using an in-plane transverse ultrasound-guided approach in the lateral-to-medial direction. ⋯ The motor dysfunction in the lower extremities lasted 7 h, and the sensory block lasted 13.5 h. Postoperative radiologic confirmation of the catheter position concomitant with the spread of radiopaque dye revealed that the tip of the catheter was lying in the epidural space. Unless precise attention is paid to detection of the catheter tip location, a thoracic paravertebral catheter can enter into the epidural space even under ultrasound guidance.
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Journal of anesthesia · Aug 2016
Multicenter Study Observational StudySocioeconomic value of intervention for chronic pain.
The purpose of this study was to examine the cost-effectiveness of pain treatments in two pain centers in Japan. ⋯ Based on our results, the EQ-5D is reliable for evaluating chronic pain in patients. The medico-economic balance was appropriate for all treatments provided in two comprehensive pain centers in Japan.
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Journal of anesthesia · Aug 2016
Randomized Controlled TrialThe efficacy of simultaneous bilateral axillary brachial plexus block under the guidance of neurostimulator or ultrasound: a prospective study.
This study was designed to investigate the risk of local anesthetic toxicity and efficacy of simultaneous bilateral axillary brachial plexus block performed under the guidance of ultrasound or a neurostimulator. ⋯ Simultaneous bilateral axillary brachial plexus block guided by neurostimulator or ultrasound in bilateral distal upper extremity surgery seems to have a low risk of local anesthetic toxicity and to be effective. The ultrasound-guided block is superior in terms of providing the same degree of anesthesia with shorter duration, less pain, and faster onset of sensory and motor blockades, which is important in clinical practice.