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  • Title: [Anesthetic management by total intravenous anesthesia with propofol, pentazocine and ketamine].
    Author: Nonaka A, Suzuki S, Masamune T, Imamura M, Abe F.
    Journal: Masui; 2005 Feb; 54(2):133-7. PubMed ID: 15747506.
    Abstract:
    BACKGROUND: The authors evaluated the efficacy of anesthetic management by total intravenous anesthesia with propofol, pentazocine and ketamine. METHODS: Thirty-five patients for mastectomy were anesthetized by propofol, pentazocine and ketamine. Patients were divided into two groups by age; one is patients under 61 years of age and the others are patients above 61 years. Analysis was made retrospectively. Anesthesia was induced with propofol and ketamine and was maintained with propofol infusion and intermittent administration of vecuronium with 40% oxygen in air. Pentazocine was administrated as a bolus dose before incision. RESULTS: There were no differences in the patient background except age and height between the two groups. After induction of anesthesia, systolic and diastolic blood pressures decreased compared with those before induction in both groups. Systolic and diastolic blood pressures and heart rate increased after tracheal intubation, but the hemodynamics remained stable after the start of surgery. The induction and maintenance doses of propofol were not different between the two groups. Patients above 61 years had smaller dosage of pentazocine compared with those in patients under 61 years. The dosage of ketamine was not different between two groups. Awakening time in about 80% of patients was within 15 minutes and is not different between the two groups. Postoperative pain relief was good in both groups. Incidence of nausea and vomiting was 25% and was not the different between the two groups. CONCLUSIONS: Total intravenous anesthesia with propofol, pentazocine and ketamine would be useful to stabilize hemodynamic state, to obtain rapid recovery and to provide effective postoperative pain relief.
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