Incidence of postoperative nausea and vomiting following gynecological laparoscopy: A comparison of standard anesthetic technique and propofol infusion.

OBJECTIVE: To determine the safety, efficacy, and feasibility of propofol-based anesthesia in gynecological laparoscopies in reducing incidences of postoperative nausea and vomiting compared to a standard anesthesia using thiopentone/isoflurane. DESIGN: Randomized single-blind (for anesthesia techniques used) and double-blind (for postoperative assessment) controlled trial. SETTING: Operation theater, postanesthesia recovery room, teaching hospital. PATIENTS: Sixty ASA (American Society of Anesthesiologists) I and II female patients (aged 20-60 years) scheduled for gynecological laparoscopy were included in the study. INTERVENTIONS: Patients in Group A received standard anesthesia with thiopentone for induction and maintenance with isoflurane-fentanyl, and those in Group B received propofol for induction and maintenance along with fentanyl. All patients received nitrous oxide, vecuronium, and neostigmine/glycopyrrolate. No patient received elective preemptive antiemetic, but patients did receive it after more than one episode of vomiting. MEASUREMENTS: Assessment for incidence of postoperative nausea and vomiting as well as other recovery parameters were carried out over a period of 24 hours. MAIN RESULTS: Six patients (20%) in Group A and seven patients (23.3%) in Group B experienced nausea. Two patients (6.66%) in Group B had vomiting versus 12 (40%) in Group A (p<0.05). Overall, the incidence of emesis was 60% and 30% in Groups A and B, respectively (p<0.05). All patients in Group B had significantly faster recovery compared with those in Group A. No patient had any overt cardiorespiratory complications. CONCLUSION: Propofol-based anesthesia was associated with significantly less postoperative vomiting and faster recovery compared to standard anesthesia in patients undergoing gynecological laparoscopy.

Intranasal fentanyl provides adequate postoperative analgesia in pediatric patients.

PURPOSE: To evaluate intranasally administered fentanyl for postoperative analgesia in pediatric patients. METHODS: Thirty-two children aged four to eight years, ASA physical status I and II were included in this prospective randomized controlled study. In the postoperative care unit, patients were allocated to receive fentanyl, using a double-blind study design, either intranasally (Group I) or intravenously (Group II) in small titrated doses until they became pain free or side effects appeared which prohibited continuation of the drug. RESULTS: Satisfactory analgesia was achieved in both groups, though the required drug dosage was higher in the intranasal group (1.43 +/- 0.39 microg.kg(-1)). Onset of analgesia tended to be slower via the intranasal route compared to the iv route (13 +/- 4.5 vs 8.3 +/- 3.08 min; P=not significant). Side effects observed in this series were within an acceptable range and similar for both modalities. CONCLUSION: The intranasal route provides a good alternative for administration of fentanyl in pediatric surgical patients.