Acta anaesthesiologica Sinica
-
Acta Anaesthesiol. Sin. · Jun 2000
Case ReportsAwareness due to disconnection from the fresh gas supply: why could ventilation be achieved in spite of disconnection from the fresh gas supply?
An anaesthesia ventilator of to-and-fro type incorporated into the anesthesia machine was used for mechanical ventilation in a patient undergoing plastic surgery under sevoflurane anaesthesia. During operation, elevation of blood pressure and tachycardia, which suggested inadequate anesthesia could not be managed by adjustment of sevoflurane to higher concentrations. However, the patient's lungs could be well ventilated without problems. ⋯ As a result, anaesthetic gas is replaced by a driving gas. A ventilator of to-and-fro type is still used in clinical anesthesia due to its simple design. The phenomenon reflects the pitfall in the design of a to-and-fro type anaesthesia ventilator.
-
Acta Anaesthesiol. Sin. · Jun 2000
Case ReportsConvulsions during superior laryngeal nerve block--a case report.
Complications following local anesthesia for fiberoscope-assisted intubation are rare. We report a case with surgical condition indicating awake endotracheal intubation for general anesthesia, suffering from convulsions after receiving left superior laryngeal nerve block to facilitate the procedure. The possible cause may be accidental injection of the local anesthetic into the vertebral artery. ⋯ The central nervous system toxicity of local anesthetic depends not only on the dosage used, but also on the rate of injection, as well as the site at which it is injected. Starting from a small dose together with careful monitoring of patient's response is advised when nerve block in the neck is performed. Here, we also emphasize the importance of availability of resuscitation equipment for maintaining adequate ventilation and circulation in case of emergency.
-
Acta Anaesthesiol. Sin. · Jun 2000
Case ReportsFatal anaphylactoid shock associated with protamine for heparin reversal during anesthesia.
A 19-year-old female was scheduled for elective surgery of repair of ventricular septal defect (VSD). She had no known previous food or drug allergy history. She was not previously exposed to protamine and did not have any of the risk factors pointing to protamine hypersensitivity reaction. ⋯ One was caused by intravenous (i.v.) administration of antibiotics, and the other happened following i.v. drip of protamine sulfate for reversal of systemic heparinization. She had none of the risk factors suggestive of hypersensitivity to drugs and was therefore considered not at risk for such severe adverse reactions which happened. This article was to discuss the anaphylactoid shock induced by antibiotics and protamine during anesthesia, and the prevention and management of such a reaction.
-
Acta Anaesthesiol. Sin. · Mar 2000
Randomized Controlled Trial Clinical TrialPropofol-sodium thiopental admixture reduces pain on injection.
Propofol injection associated with a high incidence of pain is well known. Propofol and sodium thiopental mixture has recently been reported to be used for cost saving and able to reduce pain on injection. ⋯ Sodium thiopental, when added to propofol, can significantly reduce propofol injection pain. This attenuation effect was noted even with as low as 10 volume % of sodium thiopental.
-
Acta Anaesthesiol. Sin. · Mar 2000
Randomized Controlled Trial Clinical TrialEffect of oral clonidine premedication on perioperative hemodynamic response and postoperative analgesic requirement for patients undergoing laparoscopic cholecystectomy.
To investigate the clinical efficacy of oral clonidine premedication in anesthesia and analgesia in patients undergoing laparoscopic cholecystectomy (LC). ⋯ Oral clonidine premedication helped to provide perioperative hemodynamic stability, spared the use of isoflurane and reduced the requirement of postoperative analgesia so as to smoother the way to recovery in patients undergoing LC.