Postoperative symptoms at home following day-case surgery in children: a multicentre survey of 551 children.

The incidence and duration of postoperative symptoms in children at home following day-case anaesthesia and surgery was evaluated using a questionnaire completed by parents of 551 children aged 4 months to 13.4 years (mean 3.8 years). They also evaluated the instructions given in hospital for care at home. The incidence of all symptoms was highest at home on the day of the operation. No postoperative symptoms were reported in 79 (14%) children. The incidence of pain was 56% and the only significant predictor was the type of operation, tonsillectomy being the most problematic (mild pain in 38% and severe in 25%; pain lasted 7 days or longer in 33%). Analgesics were given to 78% of all the children reported to have pain on the day of the operation, to 60% the next day and later to 58%; 19 (3%) children were given more than two doses per day. The instructions given in hospital for the treatment of pain were considered inadequated by 12% of parents. Postoperative nausea and vomiting occurred in 13% of children. Predictors by multiple stepwise logistic regression analysis were emetic symptoms in hospital, pain at home, age > 5 years and administration of postoperative opioid (pethidine or fentanyl). Opioid given during anaesthesia (fentanyl or alfentanil) did not increase the incidence. Emetic symptoms were most common after tonsillectomy (31%). The highest incidences of emetic symptoms (37%), sedation (96%) and dizziness (41%) occurred in children who had been given fentanyl for postoperative pain. Undertreatment of nausea in hospital was evident as only two children had received anti-emetics, even though 61 were reported to have emetic symptoms. Administration of effective anti-emetics should be encouraged, as emetic symptoms in hospital were the most significant predictor of nausea and vomiting at home. Treatment of pain at home and instructions for treatment of pain need to be improved.

Behavioural changes in children following day-case surgery: a 4-week follow-up of 551 children.

The purpose of this prospective multicentre survey was to evaluate the occurrence and the type of changes in children's behaviour during the first 4 weeks following the day of surgery, and to assess the significance of some patient-related factors on the incidence. Pre- and postoperative questionnaires were completed by the parents of 551 children aged 4 months to 13.4 years in five hospitals incorporating nine operative units in Northern Finland. The overall incidence of problematical behavioural changes was 47% and that of beneficial changes 17%. Problematical changes were most common in the 1.0 to 2.9 year olds and the incidence decreased significantly from 46% on the day of the operation to 9% 4 weeks later (p < 0.0001). Predictors by multiple logistic regression analysis were age, mild pain at home following surgery, severe pain and a previous bad experience of health care which had adversely affected the attitude of the child towards doctors or nurses. Hospital influenced playing was a significant factor 3 and 4 weeks after the operation. By the 4th week, beneficial and problematical changes were equally common (9%). Gender, previous operations and experience of repeated paracenteses (for treatment of middle ear infection) did not have a significant effect on the incidence. Pain on the day of the operation predicted the occurrence of behavioural problems up to the 4th week, 2-4 weeks longer than the duration of pain itself. The results emphasise the importance of effective prevention of postoperative pain as well as the importance of avoiding unpleasant experiences in all contacts children have with health care. Playing could perhaps be used to help children cope with a short hospital experience.

Antiemetic efficacy of prophylactic ondansetron in laparoscopic cholecystectomy. A randomised, double-blind, placebo-controlled trial.

The antiemetic efficacy of ondansetron given prophylactically was investigated in a randomised, double-blind, placebo-controlled trial of 63 patients undergoing laparoscopic cholecystectomy. The patients received intravenously prior to anaesthesia either ondansetron 4 mg or placebo. The same standardised general anaesthetic technique was used. Nausea, emetic episodes and the need for rescue medication were recorded for 24 h postoperatively. Nausea was experienced by 64% of the patients in the ondansetron group and 56% in the placebo group, and emetic episodes occurred in 45% and 50% of the patients in the two groups, respectively. The proportions of patients given rescue antiemetic medication were 45% and 44%, respectively. No clinically important adverse events were observed. In conclusion, ondansetron given prior to anaesthesia in a dosage of 4 mg did not prevent postoperative nausea and vomiting after laparoscopic cholecystectomy.

Behavioural changes following routine ENT operations in two-to-ten-year-old children.

Behavioural changes in 85 two-to-ten-year-old children were evaluated by the parents one day, one week and one month after a routine ENT operation. Twenty (23%) children showed no changes. Behavioural problems at least once during the observation time were seen in 52 (61%) and improvements in 28 (33%) children, 15 (17%) had both. There was no statistically significant difference between the children treated as day cases and those hospitalized for one or two nights, or between the girls and the boys. The proportion of children showing behavioural problems decreased from 59% at 1 day to 32% at 1 month after the operation. The highest incidence of problematic changes occurred in children aged 3, 5 years or younger (79%), and the incidence was lowest in the 5.0-6.9-year-olds (43%). The most common changes were an increase in seeking attention from the parents (in 34% of the children), temper tantrums (25%), waking up at nights (16%) and problems in eating (16%).

Behavioural changes and children's memories after intravenous, inhalation and rectal induction of anaesthesia.

Ninety two-to-seven-year-old children admitted for routine day case ENT operations were randomly allocated to have either intravenous thiopentone (group I), halothane inhalation (group II) or rectal methohexitone (group III) for anaesthesia induction. Using a postoperative questionnaire, the parents evaluated the changes in the child's behaviour one day, one week and one month after the operation. Problematic changes were detected in 17 (59%) children in group I, 14 (50%) in group II and 17 (58%) in group III (NS). Although the children in group II behaved most calmly during the induction they had significantly more negative memories of the induction of anaesthesia (six children in group II vs two in group I and one in group III) and of the hospital in general (17 in group II vs 11 in group I and eight in group III) than children in the other groups. Judging from memories of young children, intravenous and rectal inductions are less distressing to them than inhalational induction.

Alfentanil-induced rigidity in newborn infants.

The authors evaluated whether alfentanil could be given before treatment procedures in critically ill mechanically ventilated neonates without adverse effects. Alfentanil (mean dose 11.7 micrograms/kg, range 9-15) was given intravenously to 20 mechanically ventilated critically ill newborn infants (mean birth weight 2510 g, range 1490-3990) during the first 3 days of life before treatment procedures. Heart rate, arterial blood pressure, transcutaneous partial pressure of O2, respiratory rate, and general activity were observed continuously from 10 min before the administration of alfentanil until 1 h after it. Plasma alfentanil concentrations were measured in 15 subjects. The pharmacokinetics of alfentanil varied greatly among the subjects. The hemodynamic changes were not clinically significant, and the most important side effect was muscle rigidity. Nine infants had mild or moderate rigidity, which had little or no effect on ventilation. Four infants had severe rigidity and jerking comparable to convulsive activity, transiently impairing ventilation and oxygenation for approximately 5-10 min. Increased inspired oxygen and increased pressure by manual ventilation were needed to prevent hypoxemia. Electroencephalographic recordings for three infants during alfentanil administration showed no evidence of increased seizure activity. We conclude that alfentanil should not be used for newborn infants without simultaneous muscle relaxation because of the danger of rigidity.