Der Anaesthesist
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Randomized Controlled Trial Comparative Study Clinical Trial
[Intravenous versus thoracic-epidural patient-controlled analgesia following extended abdominal or thoracic surgery].
Intravenous patient-controlled analgesia (PCA-i.v.) has has markedly improved postoperative pain-relief. Alternatively, peridural anesthesia has been used successfully in high risk patients with the disadvantage of a more intense postoperative care. In this study we compared the applicability of intravenous vs. peridural patient-controlled analgesia on a general ward. ⋯ This study demonstrates that epidural PCA can be used on a general surgical ward as an alternative method compared to intravenous PCA. PCA-PDK may be advantageous over intravenous PCA since both techniques require similar intense monitoring and side effects in the PCA-PDK group appear to be less.
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Randomized Controlled Trial Clinical Trial
[The effects of dopexamine. Transpulmonary shunt volume in thoracic surgical procedures with one-lung respiration].
To study the influence of dopexamine on pulmonary shunt and hypoxic pulmonary vasoconstriction during major thoracic surgery with one-lung ventilation (OLV). ⋯ It is concluded that dopexamine can be used to improve haemodynamics and oxygen delivery during thoracic surgery without increasing venous admixture during one-lung ventilation.
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Randomized Controlled Trial Comparative Study Clinical Trial
[Propofol and postoperative nausea and/or vomiting].
The objective of this prospective, randomised study was to investigate the incidence of postoperative nausea and/or vomiting (PONV) during the first 24 h postoperatively. For a quality assurance study on PONV, we compared two established general anaesthetic procedures in 239 patients undergoing four different types of surgery (subtotal thyroidectomy, laparotomy for gynaecological procedures, laparoscopy, and surgery for extra-abdominal procedures). ⋯ We found that the antiemetic effect of propofol was considerable in the early postoperative period. The higher cost of propofol as compared to other induction agents can be covered by not using nitrous oxide for maintenance of anaesthesia and by the decreased need for antiemetic drugs postoperatively. According to the calculations of our clinical pharmacy, the costs of the propofol infusion regimen exceeded those of balanced anaesthesia by 8.50 DM/h; the need for antiemetics was one-half that of the non-propofol group. Considering a cost of 16 DM for cleaning the bed after vomiting, improvement of the patient's condition during the postoperative period can be achieved without additional expense.
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Randomized Controlled Trial Clinical Trial
[Preoperative hemodilution with bovine hemoglobin. Acute hemodynamic effects in liver surgery patients ].
Haemoglobin solutions can be an alternative to allogeneic red-cell transfusions because they combine colloid osmotic with oxygen transport properties. Since severe toxic side effects have been overcome by ultrapurification, clinical interest has been focused on haemodynamics changes during application of haemoglobin preparations. The present clinical study examines changes of haemodynamic and oxygen transport parameters during and after haemodilution with ultrapurified polymerized bovine haemoglobin (HBOC-201) in comparison to hydroxyethyl starch (HES). ⋯ Patients did not show any severe complications during and after infusion of HBOC-201. However, vasoconstrictive side effects resulted in increased systemic but not pulmonary resistance. Ongoing studies with higher doses of HBOC-201 applied in a larger number of patients will probably reveal potential clinical consequences of the demonstrated haemodynamic changes.