Diagnostic dilemma of an unsuspected hyperfunctioning accessory parathyroid gland after total parathyroidectomy with autotransplantation in a peritoneal dialysis patient.

Persistent or recurrent hyperparathyroidism in patients with chronic renal failure may be a frustrating problem. We report a case history of a peritoneal dialysis patient who underwent total parathyroidectomy with autotransplantation for secondary hyperparathyroidism, developed tertiary hyperparathyroidism, and in an attempt to control hypercalcemia underwent seven partial resections of the autotransplant. Subsequently, a total excision of the parathyroid autograft was performed, but the patient continued to have hyperparathyroidism and unexpectedly was found to have a hyperplastic fifth parathyroid gland identified by thallium-technetium subtraction scan.

Comparative antitussive effects of dextrorphan, dextromethorphan and phencyclidine.

The possible antitussive effects of dextrorphan (the (+) isomer of levorphanol) and phencyclidine (PCP) were compared to well known antitussive properties of dextromethorphan in the post-halothane anesthetized decerebrate cat in which cough was elicited by direct electrical stimulation of the cough center. Dextrorphan, when injected i.a.

Comparative effects of diazepam and midazolam on paraoxon toxicity in rats.

The present study was undertaken to compare the effectiveness of a new water-soluble benzodiazepine, midazolam, to diazepam, both administered im for protection against diethyl-p-nitrophenyl phosphate (paraoxon) toxicity. Adult male Sprague-Dawley rats were pretreated with midazolam or diazepam (0.32-32.

Scopolamine, morphine, and brain-stem auditory evoked potentials in awake monkeys.

The effects of scopolamine and morphine sulfate on brain-stem auditory evoked potentials (BAEPs) were studied in 10 rhesus (Macaca mulatta) monkeys. Study drugs were given intravenously to unanesthetized animals and BAEPs recorded at 3-min and 30-min intervals after administration of 0.1 mg/kg and 0.

Evidence for a central site of action for the antitussive effects of caramiphen.

The antitussive properties of caramiphen edisylate were studied in the decerebrate cat in which cough was elicited by direct electrical stimulation of the cough center. In this preparation dextromethorphan hydrobromide was compared to caramiphen as an antitussive agent. Dextromethorphan was somewhat more potent when given i.