Articles: surgery.
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Journal of anesthesia · Jan 2002
Randomized Controlled Trial Clinical TrialComparison of heart rate changes after neostigmine-atropine administration during recovery from propofol-N2O and isoflurane-N2O anesthesia.
Propofol augments the reduction of heart rate (HR) in combination with cholinergic agents and attenuates the HR response to atropine. We examined whether propofol anesthesia was associated with an increased incidence and extent of bradycardia after neostigmine-atropine administration compared with the effects of isoflurane anesthesia. ⋯ We conclude that propofol anesthesia attenuates the initial increases in HR, enhances the subsequent decreases in HR, and increases the incidence of bradycardia after neostigmine-atropine injections compared with the effects of isoflurane anesthesia.
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Journal of anesthesia · Jan 2002
Multiple-deep-breath inhalation induction with 5% sevoflurane and 67% nitrous oxide: comparison with intravenous injection of propofol.
To evaluate the clinical characteristics of multiple-deep-breath inhalation induction with sevoflurane and nitrous oxide followed by the same inhalational anesthetics for maintenance, we compared the technique with intravenous propofol anesthesia. ⋯ Multiple-deep-breath inhalation induction with 5% sevoflurane and 67% nitrous oxide followed by the same inhalational anesthetics for maintenance was safely performed without serious adverse events. However, the induction time was shorter and patient satisfaction was higher in propofol group than in the inhalational group.
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Journal of anesthesia · Jan 2002
Effects of fentanyl on cardiovascular and plasma catecholamine responses in surgical patients.
Whether opioids administered before skin incision, under inhalational anesthesia, improve cardiovascular and plasma catecholamine responses to surgical stimulation compared with those administered after skin incision remains unclear. We compared the effects of fentanyl injected before and after skin incision on these responses. ⋯ Our results indicated that fentanyl depressed cardiovascular and plasma catecholamine responses irrespective of the time of administration, and that the higher dose of fentanyl produced a greater suppression of MAP and HR responses. In addition, the depressant effects on MAP of high-dose fentanyl administered 5 min before skin incision lasted longer than when injected 5 min after incision. At both doses, the opioid attenuated the rise in plasma Epi, but not Nor.
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Aesthetic surgery journal · Jan 2002
Incidence of intercostobrachial nerve injury after transaxillary breast augmentation.
Although many studies on transaxillary breast augmentation (TBA) have been published, none has examined the incidence of intercostobrachial nerve (ICBN) injury after aesthetic surgery. ⋯ TBA is associated with a high incidence of injury to the ICBN. Our findings indicate that the use of an endoscope with the transaxillary approach does not significantly affect the rate of injury to the ICBN. The dissection study performed helped to confirm that an immediately subcutaneous plane of dissection in the axilla is safest with regard to avoiding injury to the ICBN. (Aesthetic Surg J 2002;22:26-32.).
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Comput. Aided Surg. · Jan 2002
Comparative StudyThe application accuracy of the NeuroMate robot--A quantitative comparison with frameless and frame-based surgical localization systems.
The NeuroMatetrade mark robot system (Integrated Surgical Systems, Davis, CA) is a commercially available, image-guided, robotic-assisted system used for stereotactic procedures in neurosurgery. In this article, we present a quantitative comparison of the application accuracy of the NeuroMate with that of standard frame-based and frameless stereotactic techniques. ⋯ The study was performed with 2-mm sections of CT scans. These results show that the application accuracy of the frame-based NeuroMate robot is comparable to that of standard localizing systems, whether they are frame-based or infrared tracked.