Journal of clinical anesthesia
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To investigate whether the phase of menstrual cycle influences the incidence of postoperative nausea and vomiting (PONV) in women undergoing general anesthesia for elective laparoscopic gynecological surgery. ⋯ Patients in the luteal phase of their menstrual cycle may have a decreased risk of PONV after laparoscopic gynecological surgery in the early postoperative period.
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To investigate changes in stroke volume variation (SVV) by both induced hypertension (pressor test) and hypotension (depressor test), and also by induced hypotensive anesthesia in patients with good cardiac function. ⋯ SVV does not misinterpret preload dependency assessment of patients receiving medications to increase or to lower blood pressure.
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To explore the influence of shoulder roll height on internal jugular vein (IJV) diameter and IJV/common carotid artery (CCA) overlap. ⋯ Shoulder rolls can reduce the overlap between the IJV and CCA, and may be useful in positioning patients for IJV puncture.
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A case of temporary quadriplegia following a continuous thoracic paravertebral block in an adult patient scheduled for video-assisted thoracoscopy is presented. An 18-gauge Tuohy needle was inserted under direct vision by the surgeon but the tip of the catheter was not localized. Postoperatively, the patient developed temporary quadriplegia 90 minutes after the start of a continuous infusion of ropivacaine 0.2%. Imaging studies showed that the catheter was localized in the intrathecal space.
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To determine the exact mechanism underlying spinal anesthesia-induced hypotension in the elderly patient. ⋯ A decrease in SVR, not CO, is the main mechanism of hypotension seen during spinal anesthesia in elderly patients.