Articles: general-anesthesia.
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The course of surgical treatment of 124 patients aged over 70 years was subjected to an assessment. On the basis of the ASA classification, 88% of all surgically treated patients fell into group III-IV of risk. ⋯ Heart rhythm disturbances were not observed in patients under conduction anaesthesia. No intraoperative deaths were noted.
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Comparative Study
Efficacy of intraoperative heat administration by ventilation with warm humidified gases and an oesophageal warming system.
We measured changes in body temperature in 12 hypothermic (mean aural temperature 34.4 (SD 1.0) degrees C) pigs during general anaesthesia with an open abdominal cavity and the effect of two warming systems: heating of inspired gases to 39 degrees C (intratracheal temperature) and oesophageal warming to 39 degrees C by a water perfused oesophageal heat exchanger. Each animal underwent both treatments and the control period in random sequence. Each condition was studied over 1 h. ⋯ Anaesthesia, room temperature and relative humidity, amount and temperature of infusions and extension of exposed visceral surfaces were standardized. Mean decrease in body temperature was 1.0 (0.7) degree C (P < 0.005) without warming and 0.6 (0.2) degree C (P < 0.005) with heated inspired gases: this difference was not statistically significant. Oesophageal warming was very efficient as mean body temperature did not change significantly (-0.1 (0.2) degree C; ns).
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We report a case of "crack" cocaine abuse in a pregnant patient associated with haematuria, proteinuria, haemolytic anaemia, renal impairment, thrombocytopenia and pulmonary oedema. The case illustrates the problems for clinicians where unrecognized cocaine abuse interferes with the diagnosis and management of a complicated pregnancy. In addition, we discuss the principles for the safe conduct of anaesthesia in the pregnant cocaine abuser.
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Acta Anaesthesiol Scand · Oct 1996
Randomized Controlled Trial Clinical TrialCardiovascular effects of desflurane and isoflurane in patients with coronary artery disease.
Anaesthesia in patients with ischaemic heart disease may cause adverse haemodynamic reactions. This investigation compares the cardiovascular effects of equipotent concentrations of desflurane and isoflurane in 30 patients (ASA III) with coronary artery disease before surgical stimulation. ⋯ The results of this study demonstrate that in patients with coronary artery disease the haemodynamic effects of equipotent concentrations of desflurane and isoflurane are similar except for a significant increase in PAP and PCWP caused by desflurane. Therefore, desflurane should be administered with great caution if it is used as an alternative anaesthetic in patients with ischaemic heart disease.
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J. Oral Maxillofac. Surg. · Oct 1996
Randomized Controlled Trial Clinical TrialThe effect of a 4-mg preoperative intravenous dose of ondansetron in preventing nausea and vomiting after maxillofacial surgery.
The efficacy of a preoperative 4-mg dose of ondansetron given intravenously in preventing postoperative nausea and vomiting after maxillofacial surgery was evaluated in a double-blind randomized study. ⋯ Four milligrams ondansetron given intravenously preoperatively was ineffective in controlling postoperative nausea and vomiting after maxillofacial surgery. Possibly, a larger dose or a second dose given 8 hours after the first dose may be effective.