Anaesthesiologie und Reanimation
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Anaesthesiol Reanim · Jan 1996
Randomized Controlled Trial Multicenter Study Comparative Study Clinical Trial[Comparison of the effect of desflurane and isoflurane on neuromuscular blockage with vecuronium on geriatric patients].
Volatile anaesthetics have long been known to intensify the effect of muscle relaxants. In this study we investigated the effects of desflurane and isoflurane on the neuromuscular blockade of vecuronium in geriatric patients. Fifty-two patients requiring elective surgery, aged > or = 65 years, with ASA status II - III were randomly assigned to receive general anaesthesia using desflurane (Des, n = 26) or isoflurane (Iso, n = 26). ⋯ There were no differences between the two groups (p > 0.05). These results suggest that augmentation of neuromuscular blockade by older fluorinated anesthetics is also exhibited by desflurane. The magnitude of this effect in geriatric patients is similar to that of isoflurane.
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Anaesthesiol Reanim · Jan 1996
Review Randomized Controlled Trial Comparative Study Clinical Trial[Prevention of postoperative nausea and vomiting with single and repeat administration of ondansetron--review of the literature on different administration forms].
Postoperative nausea and vomiting (PONV) is still a common perioperative complication and ondansetron has proved to be an effective antiemetic substance in its prevention. The antiemetic effect of single and repetitive application was evaluated in this study. Fifty-one female patients who underwent gynaecological surgical procedures took part in a random double-blind study. ⋯ Ondansetron was shown to be a well-tolerated antiemetic and seems to have a higher reductive effect on PONV when given in a single dose and not repetitively. The prophylaxis of vomiting seems to be more effective than the reduction of nausea. Follow-up studies will have to clarify our findings.
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Anaesthesiol Reanim · Jan 1996
Randomized Controlled Trial Comparative Study Clinical Trial[Effect of rocuronium in sufentanil/isoflurane and sufentanil/propofol anesthesia].
It is a well-known fact that the duration of the effect of non-depolarizing neuromuscular blocking agents is influenced by other anaesthetics. Etomidate, propofol and nitrous oxide have no influence on the duration of effect of rocuronium, but a prolongation of the rocuronium effect under the influence of isoflurane has been described. In this study, we investigated the onset time, duration of effect and recovery index of rocuronium in isoflurane/N2O/sufentanil anaesthesia compared with these parameters in propofol/N2O/sufentanil anaesthesia. ⋯ Significant changes in arterial blood pressure or heart rate were not observed. The intubation conditions after 60 seconds were excellent in 34 patients (85%) and good in 6 patients (15%). It can be concluded that in comparison with anesthesia maintained by propofol/sufentanil and nitrous oxide/oxygen, the relatively low but necessary supplementation with isoflurane instead of propofol does not lead to a clinically relevant amplification of the relaxing effect of rocuronium.
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Anaesthesiol Reanim · Jan 1996
Randomized Controlled Trial Comparative Study Clinical Trial[Combination of intravenous patient-controlled analgesia with epidural anesthesia for postoperative pain therapy].
The aim of this study was to prove the hypothesis that a combination of epidural anaesthesia with intravenous patient-controlled analgesia (PCA) could improve perioperative pain management. Patients of the urological department undergoing lower abdominal surgery were randomized for two different pain managements. Patients of group 1 (n = 37) were narcotized, intubated and ventilated for the operation; arriving at the recovery room, they were given a PCA-pump, the drug used was piritramide and the parameters were bolus 2.5 mg, blocking time 20 minutes and no basal infusion rate. ⋯ The benefits of better pain management contrast with the risks resulting from combining the two techniques. In our patients we found an improvement of pain management in the early postoperative period. The combination of epidural anaesthesia with intravenous patient-controlled analgesia can be regarded as a further possibility for treating postoperative pain in the sense of "balanced pain management".