Fatal air embolism during endoresection of choroidal melanoma.

Purpose: To describe a case of intraoperative mortality because of air embolism during resection of a choroidal melanoma by pars plana vitrectomy.

Methods: Retrospective interventional case report.

Results: A 69-year-old man died unexpectedly at the time of pars plana vitrectomy.

Prospective, randomized trial comparing general with spinal anesthesia for cesarean delivery in preeclamptic patients with a nonreassuring fetal heart trace.

Background: There are no randomized studies on neonatal outcome after spinal versus general anesthesia for cesarean delivery in preeclamptic patients with a nonreassuring fetal heart trace. This study examined both markers of neonatal hypoxia and maternal hemodynamics.

Methods: Seventy patients were randomized to general (n = 35) or spinal anesthesia (n = 35).

Postoperative sensitization and pain after cesarean delivery and the effects of single im doses of tramadol and diclofenac alone and in combination.

Unlabelled: Combining different analgesic mechanisms can reduce postoperative pain. We investigated postoperative pain and sensory sensitization in a double-blinded, placebo-controlled, randomized, single-dose comparison of the monoaminergic and micro -opioid agonist tramadol, 100 mg, and diclofenac 75 mg given IM in combination or alone in 120 patients who had elective cesarean delivery. The time to first postoperative demand for rescue analgesia, pain, tramadol pharmacokinetics, and electrical sensory thresholds at or distant from the incision were studied.