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PubMed2006

Outcomes of reduced postoperative stay following outpatient pediatric tonsillectomy.

OBJECTIVE: To assess outcomes of reduced postoperative recovery room observation times and associated complication rates following outpatient pediatric adenotonsillectomy at a tertiary care medical center outpatient facility over a 7.5-year period. STUDY DESIGN: Retrospective chart review. METHODS: Charts from all outpatient pediatric adenotonsillectomies performed by one surgeon from January 1998 through June 2005 at a tertiary care center were reviewed. RESULTS: Seven hundred and ninety seven (797) charts had sufficient documentation to be included in this study. Mean patient age was 6.8 years (median 5.5 years, range 2-21 years). There were 53 patients under 3 years old (6.64%), 655 patients age 3-12 years (82.18%), and 89 patients age 12-21 years (11.17%). Mean postoperative recovery room observation time prior to discharge was 1.47 h (median 1.33 h, range 0.45-7.25 h). Primary (<24 h postoperative) complication rate was 0.0075%, and secondary (>24 h postoperative) complication rate was 0.0063%. There were no significant differences in duration of postoperative recovery room observation or postoperative complications between the three age groups (p=0.10). CONCLUSIONS: Very brief postoperative observation periods following outpatient pediatric adenotonsillectomy may be considered safe, without added risk nor increased short-term or long-term complications. While individual cases may merit prolonged postoperative observation periods, the majority of study patients had no postoperative complications despite shorter recovery room stays than described in prior reports. These data support safety and efficacy of reduced postoperative stays. Our data should be considered in order to increase the efficiency and cost effectiveness of outpatient surgery centers where such procedures are performed.

Adolescent↗
PubMedDate not supplied

Repeated failure of epidural analgesia: an association with epidural fat?

BACKGROUND AND OBJECTIVES: To report the case of a patient who experienced repeated failed epidural analgesia associated with an unusual amount of fat in the epidural space (epidural lipomatosis). CASE REPORT: A 44-year-old female presented for an elective small bowel resection. An L(1-2) epidural catheter was placed for postoperative analgesia. The patient gave no indication of having pain at the time of emergence from general anesthesia or in the first 2 hours in the recovery room. Assessment of the level of hypoesthesia to ice while the patient was comfortable in the recovery room suggested a functional epidural catheter (cephalad level of T(10)). Two hours after admission to the recovery room the patient began to complain of increasing pain. Another 6 mL 0.25% bupivacaine was administered via the catheter. The patient's pain decreased, but remained substantial, and there was minimal evidence of sensory block above the T(10) level. Subsequently, a T(10) epidural catheter was placed. Testing confirmed proper placement of the catheter in the epidural space at the T(10) level. A test dose of 5 mL 0.25% bupivacaine resulted in prompt and complete relief of the patient's pain. However, the level of hypoesthesia to ice did not exceed the T(10) level. Approximately 1 hour later the patient complained of increasing discomfort again. There was no evidence of any sensory block, and there was no response to a bolus of 8 mL 1% lidocaine. A thorough examination of the patient did not suggest any cause for the pain other than a malfunctioning epidural catheter. A third epidural catheter was placed at the T(8-9) level. This catheter was again confirmed to be in the epidural space with a test dose of 10 mL 0.5% bupivacaine. The level of hypoesthesia to ice was restricted to a narrow bilateral band from T(7)-T(9). Analgesia failed 2 hours later. The epidural catheter was removed and the patient's pain was subsequently managed with intravenous patient-controlled analgesia (PCA) morphine. A magnetic resonance imaging (MRI) scan revealed extensive epidural fat dorsal to the spinal cord from C(5)-C(7) and from T(3)-T(9). An imaging diagnosis of asymptomatic epidural lipomatosis was established. CONCLUSION: We have described a case of repeated failure of epidural analgesia in a patient with epidural lipomatosis.

Adipose Tissue↗
PubMed2006

Anesthesia-related complications in children.

BACKGROUND: Careful preoperative assessment and adequate planning of an appropriate anesthetic are the cornerstones safe pediatric anesthetic practice. A prospective study was carried out in pediatric surgical patients to identify and quantitate both intra-operative and post anesthesia recovery room complications, management and outcome. METHODS: Two hundred and seventy children, aged day 1-16 years who had surgery over twelve months period were recruited in the study. There were 151 males (56%) and 119 females (44%). There were 15 neonates (5.5%), 69 infants below 1 year (25%), 99 (36.7%) toddlers and younger children (1-5 years); older children >5 years were 87 (32.2%). Anesthetists managing the patients were free to use drugs and technique they considered appropriate for each patient. A standardized form was used to collect patient's details, type of surgery, technique of anesthesia, duration of anesthesia and surgery. The incidence of intra-operative and post-anesthesia recovery room complications was determined. RESULTS: Twenty five intraoperative complications were recorded in 14 (5.1%) patients while forty postoperative complications were recorded in 25 (9.25%) patients. The incidence of intraoperative complications was 9.3% while that of postoperative complications was 14.8%. There were no statistically significant differences. P = 0.0635, Odds ratio = 0.5867, 95% CI: 0.3449 - 0.9981. Intraoperative adverse events were mainly cardiovascular and respiratory. After cardiovascular complication, pain was the second commonest postoperative complication observed in the recovery room. Occurrence of complication was not related to ASA physical status but the outcome of management of complications was directly related to ASA status. Three preterm infants weighing 1.6 kg, 1.9 kg and 2 kg respectively were transferred to Intensive Care Unit for ventilatory support. Neonates and infants < below 12 months old had the highest rate of adverse events both intraoperatively and in the postanesthesia recovery room. There were two cases of cardiac arrest. Mortality rate was 0.34%. CONCLUSION: Preterm infants are more prone to developing respiratory complications. Anesthesia-related morbidity and mortality can either be minimized or avoided with early identification and prompt management of any complication.

Adolescent↗
PubMed1991

Does the anesthetic technique influence the postoperative analgesic requirement?

In order to determine the effect of two standard general anesthetic techniques on the postoperative analgesic requirement, 53 adults undergoing elective intra-abdominal surgery were randomly assigned to one of two anesthetic treatment groups according to an open parallel protocol design. One of the groups received an opioid-based anesthetic; the other group was administered an inhaled anesthetic. The postoperative analgesic requirement was quantified using a Baxter PCA device. The group receiving the opioid-based anesthetic required significantly less morphine in the recovery room (5.7 +/- 5.5 mg; mean +/- SD) compared with those receiving the conventional inhaled anesthetic (16.6 +/- 7.1 mg). During the first 8 hours after discharge from the recovery room there was a trend toward higher PCA morphine usage in the inhaled anesthetic group (25.6 +/- 15 mg vs. 18.6 +/- 13 mg); however, this difference was not statistically significant (p = 0.08). From 8 to 40 hours after surgery, the morphine usage was nonsignificantly higher in the opioid group (64 +/- 30 mg vs. 56 +/- 38 mg, p = 0.43). In conclusion, the general anesthetic technique used during an elective operation appeared to have little if any effect on the postoperative analgesic requirement after discharge from the recovery room.

Abdomen↗
PubMed1986

An investigation of factors affecting postoperative rewarming of adult patients.

Aural canal temperature was measured for one hour after arrival in the recovery room in 200 adult patients who underwent one of the following types of major surgery: abdominal, pelvic, vascular, orthopaedic or prostatic. One group of 100 patients was studied in the recovery room of Hammersmith Hospital which was not equipped with a controlled system for constant ventilation and humidification, while the other 100 patients were studied in the recovery room of Edgware General Hospital, which had a constant ambient temperature and controlled relative humidity with 20 air changes/hour. The rate of rewarming was found to be similar in both groups. Within the range of ambient temperatures and relative humidities measured, patients over 60 years of age rewarmed more slowly than did patients under 60 years (p less than 0.05). General anaesthesia was associated with significantly faster rewarming than was local anaesthesia (p less than 0.01).

Age Factors↗
PubMed1992

[Coagulation changes during liver resection].

Thrombin-antithrombin III complex (TAT) and plasminogen activator inhibitor (PAI) were measured during liver resection surgery in 8 patients. TAT and PAI activities of patients under liver resection were compared with those of 11 patients under resection of esophageal carcinoma. TAT activity increased during liver resection (P < 0.001) and reached 14 times (P < 0.001) of its control value in the recovery room. PAI activity was very stable during operation, but increased to twice (P < 0.01) of its control value in the recovery room. TAT activity of patients after liver surgery in the recovery room was (P < 0.05) more than twice of that of patients after esophageal surgery. We conclude that hypercoagulable state occurred during liver resection to a greater degree compared with that observed with esophageal surgery, and that its cause might be liver resection itself.

Antithrombin III↗
PubMed1986

Postoperative neuromuscular function.

One hundred patients who received a competitive neuromuscular blocking agent during anaesthesia were randomly selected for evaluation of neuromuscular function immediately on their arrival in the recovery room. The anaesthetist was not aware that the patient would be evaluated in the recovery room. Neuromuscular function was assessed by a train-of-four (TOF) ratio, and in conscious and co-operative patients by a series of bedside tests of neuromuscular function. Twenty-one patients had a TOF ratio of less than 0.70 and seven patients a TOF ratio of less than 0.60. Bedside tests of neuromuscular function did not reliably detect this defect in neuromuscular transmission. It is concluded that a relatively large number of patients have a defect in neuromuscular transmission on their arrival in the recovery room, and suggested that this reflects the inadequacy of clinical methods used for the administration and antagonism of competitive neuromuscular blocking agents at this institution.

Adolescent↗
PubMed2007

Family-centered preparation for surgery improves perioperative outcomes in children: a randomized controlled trial.

BACKGROUND: Children and parents experience significant anxiety and distress during the preoperative period. Currently available interventions are having limited efficacy. Based on an integration of the literature in both the anesthesia and psychological milieus, the authors developed a behaviorally oriented perioperative preparation program for children undergoing surgery that targets the family as a whole. METHODS: Children and their parents (n = 408) were randomly assigned to one of four groups: (1) control: received standard of care; (2) parental presence: received standard parental presence during induction of anesthesia; (3) ADVANCE: received family-centered behavioral preparation; and (4) oral midazolam. The authors assessed the effect of group assignment on preoperative anxiety levels and postoperative outcomes such as analgesic consumption and emergence delirium. RESULTS: Parents and children in the ADVANCE group exhibited significantly lower anxiety in the holding area as compared with all three other groups (34.4+/-16 vs. 39.7+/-15; P=0.007) and were less anxious during induction of anesthesia as compared with the control and parental presence groups (44.9+/-22 vs. 51.6+/-25 and 53.6+/-25, respectively; P=0.006). Anxiety and compliance during induction of anesthesia was similar for children in both the ADVANCE and midazolam groups (44.9+/-22 vs. 42.9+/-24; P=0.904). Children in the ADVANCE group exhibited a lower incidence of emergence delirium after surgery (P=0.038), required significantly less analgesia in the recovery room (P=0.016), and were discharged from the recovery room earlier (P=0.04) as compared with children in the three other groups. CONCLUSION: The family-centered preoperative ADVANCE preparation program is effective in the reduction of preoperative anxiety and improvement in postoperative outcomes.

Analgesics↗
PubMed1992

[Cognitive and psychomotor performance following isoflurane, midazolam/alfentanil and propofol anesthesia. A comparative study].

Mental and psychomotor abilities are impaired to varying degrees after general anaesthesia. This has important implications for the time over which patients are monitored in the recovery room and for the discharge of outpatients after day surgery. The present study was undertaken to compare recovery and mental and psychomotor skills in the first 60 min following general anaesthesia with isoflurane, midazolam/alfentanil and propofol. METHODS. A total of 45 patients undergoing microsurgical lumbar nucleotomy were randomized to three study groups. Group 1 (n = 15): anaesthesia was induced with thiopentone and maintained with isoflurane; group 2 (n = 15): anaesthesia was induced with midazolam and maintained with alfentanil; group 3 (n = 15): anaesthesia was induced and maintained with propofol. Vecuronium was used for muscle relaxation and the lungs were ventilated with a mixture of 66% nitrous oxide in oxygen. The following were checked 15, 30, 45, and 60 min after extubation: choice reaction times and critical flicker fusion for psychomotor testing; the maze test and a modification of the ball-bearing test for discrimination of motor and mental activities; and short- and long-term memory. RESULTS. Immediate recovery did not differ in the three different groups. In all patients psychomotor function was impaired compared with baseline for more than 60 min after general anaesthesia. However, impairment was significantly less pronounced after propofol, and recovery to preanaesthesia values was faster following propofol than after midazolam/alfentanil, and slowest after isoflurane-anaesthesia (Figs. 1, 2). The flicker fusion frequency, a very sensitive parameter for the persisting effects of anaesthetics, was significantly higher following propofol anaesthesia and remained so throughout the entire study period (Fig. 3). By 30 min after extubation, short-term memory was already normal in patients who had undergone propofol anaesthesia, and a statistically significant difference from the midazolam/alfentanil and isoflurane anaesthesia groups was obvious throughout the entire study period. However, no differences in long-term memory were found. At 30 min after propofol anaesthesia all patients were able to perform the ball-bearing test, as against 13 patients following midazolam/alfentanil and 10 patients following isoflurane (Table 3). The maze test was mostly impaired after midazolam/alfentanil anaesthesia. Patients who underwent isoflurane anaesthesia needed the same time for the maze test at 60 min afterwards propofol patients needed after 30 min (Table 2). Side effects, e.g., nausea, vomiting, and double vision, were observed significantly more often in groups 1 and 2 (Table 4). DISCUSSION AND CONCLUSION. The results indicate that in operations of approximately 90 min duration the return of motor and mental abilities is faster following propofol anaesthesia. At 30 min after extubation following propofol anaesthesia patients had test results that allow their transfer from the recovery room, while it took 60 min for patients in the two other groups to reach the same levels of motor and mental function. This is important for the duration of monitoring in the recovery room and, especially, for day case anaesthesia.

Adult↗
PubMed2006

Effect of intraoperative intravenous acetaminophen vs. intramuscular meperidine on pain and discharge time after paediatric dental restoration.

BACKGROUND AND OBJECTIVE: Enteral acetaminophen (paracetamol) has limited analgesic efficacy due to its delayed absorption and sub-therapeutic plasma concentration. Intravenous (i.v.) acetaminophen solves this issue and could thus provide adequate analgesia as a single agent. We compared intraoperative i.v. acetaminophen with intramuscular (i.m.) meperidine with regard to postoperative analgesia and readiness for discharge in paediatric patients undergoing day care dental restoration. METHODS: Forty children were randomized, in this double-blind study, to receive acetaminophen 15 mg kg-1 i.v. (Group A) or meperidine 1 mg kg-1 i.m. (Group M) after anaesthesia induction and before surgery. All patients received midazolam 0.5 mg kg-1 orally 30 min preoperatively and fentanyl 1 microg kg-1 i.v. immediately after induction. Anaesthesia was induced with either sevoflurane inhalation or propofol 3 mg kg-1 i.v. and was maintained with sevoflurane. Postoperatively, the objective pain scale, Ramsay sedation score, and Aldrete score were determined every 5 min until readiness for recovery room discharge (defined as achieving an Aldrete score of 10). RESULTS: Group A had slightly higher pain scores during early recovery compared with Group M (estimated marginal means: 3 +/- SEM 0.4 vs. 2 +/- SEM 0.4, respectively (95% CI for difference: 0.4, 2.6), P = 0.012 for F-test). In contrast, Ramsay scores were higher in Group M than in Group A during assessment period (estimated marginal means: 4 +/- SEM 0.3 vs. 2 +/- SEM 0.4, respectively (95% CI for difference: -2.3, -0.3), P = 0.013 for F-test). Group A patients achieved an Aldrete score of 10 sooner than those in Group M (5 +/- SEM 2 vs. 16 +/- SEM 4 min, respectively (95% CI for difference: -9, -14), P = 0.009). CONCLUSION: Compared with i.m. meperidine, intraoperative i.v. acetaminophen resulted in slightly higher pain scores but earlier readiness for recovery room discharge in paediatric patients undergoing dental restoration. The potential economic benefit of early recovery room discharge needs to be further explored.

Acetaminophen↗
PubMed1992

Effect of pulse oximetry, age, and ASA physical status on the frequency of patients admitted unexpectedly to a postoperative intensive care unit and the severity of their anesthesia-related complications.

Unanticipated intensive care unit admission (UIA) associated with anesthesia served as an outcome measure to assess the quality of anesthesia care in a large teaching hospital. We characterized the patient population and types of problems associated with UIAs, attempted to identify patterns of care that could have led to specific adverse outcomes, and determined if a specific intervention, pulse oximetry, reduced UIAs. During a consecutive 65-wk period (July 1985-September 1986), 17,093 surgical patients were expected to enter the recovery room and then return to floor care. Seventy-one patients (0.42%) experienced a UIA from either the recovery room or operating room, and the circumstances of their admissions were analyzed in detail. After introduction of pulse oximetry in all anesthetizing locations (not including the recovery room) in the 29th week, the overall rate of UIAs and, specifically, the rate of UIA to rule out myocardial infarction, decreased significantly. Increasing ASA physical status (ASA-PS) and age significantly increased the probability of UIA. UIA patients with ASA-PS III/IV had a significantly higher acuity in the intensive care unit and were far more likely to die during their hospitalization than ASA-PS I/II patients. Retrospective review of UIAs alone did not identify patterns of care requiring remediation, which leads us to question the utility of UIAs as a generic screen for quality assurance.

Adult↗
PubMed1988

Does prophylactic intravenous infusion of indomethacin improve the management of postoperative pain in children?

The efficacy of prophylactic intravenous infusion of indomethacin as a postoperative analgesic was studied in 100 children aged one to 16 years. At the end of surgery a bolus dose of indomethacin 0.35 mg.kg-1 followed by an infusion 0.07 mg.kg-1.hr-1 for 24 hr or placebo was given in double-blind manner. The efficacy of the treatment was measured by the need of additional morphine given 0.1 mg.kg-1 intravenously in the Recovery Room and 0.15 mg.kg-1 intramuscularly on the ward according to clinical needs. The other measure of the efficacy was assessment of pain intensity in the Recovery Room and pain relief on the ward. In the Recovery Room the pain scores differed between the groups in advantage of indomethacin only at 30 minutes (p less than 0.05) but the need of morphine was significantly less (p less than 0.01) in the indomethacin group. On the ward the mean doses of morphine given and the nurses' pain relief scores were not different between the study groups. However, in the indomethacin group the total dose of morphine given during 24 hr was lower (p = 0.02) and the children assessed the pain relief to be significantly better (p less than 0.02). Twenty per cent of the children in both groups had transient nausea and vomiting. No skin reactions or other allergic manifestations were observed. Prophylactic indomethacin infusion diminished the need of morphine and resulted in better postoperative analgesia than morphine p.r.n. alone.

Anesthesia↗
PubMed1986

A cost analysis of nalbuphine versus meperidine used in oral surgery procedures.

Cost control is of primary importance to the oral surgeon in private practice. Fifty-six patients, 26 receiving nalbuphine (10 mg IV) and 30 receiving meperidine (50 mg IV), were included in a comparative evaluation of recovery-room costs. The two treatment groups were comparable with respect to the surgical procedures performed, the quantity of ancillary sedation used, and the analgesic effectiveness of the two study medications. However, there were marked differences between treatment groups for two characteristics: length of time in the recovery room was more than 50% greater and the nursing time required per patient was 35.3% greater in the meperidine group than in the nalbuphine group. Cost analysis indicated that nalbuphine is more cost-effective than meperidine if recovery-room nursing staff salaries exceed $16,000 per year.

Adolescent↗
PubMed1997

The effect of tourniquet release time on the analgesic efficacy of intraarticular morphine after arthroscopic knee surgery.

A randomized, controlled study was conducted in patients undergoing elective arthroscopic knee surgery to assess the effects of tourniquet release time on analgesia after intraarticular (I.A.) injection of morphine. Standardized general anesthetic and surgical techniques were used for all patients, including a thigh tourniquet inflated at pressures between 300 and 350 mm Hg. At the conclusion of the arthroscopic procedure, 5 mg morphine in 25 mL saline was administered I.A. Patients were then randomized to one of two treatment groups. In Group 1 (n = 20), the tourniquet was kept inflated for 10 min after I.A. injection, whereas in Group 2 (n = 20), the tourniquet was deflated immediately after I.A. injection. Postoperative pain was assessed using a visual analog scale in the recovery room when the patients were awake and at 2, 4, 6, 8, and 24 h after I.A. injection. Patients who complained of pain in the recovery room received increments of intravenous meperidine 25-50 mg. On discharge from the recovery room, patients received oral mefenamic acid 250-500 mg for pain relief. The time and quantity of analgesics required were recorded. Patients in Group 1 had significantly (P < 0.05) lower pain scores than those in Group 2 at 2, 4, 6, and 8 h postoperatively. These low pain scores were associated with lower requirements of supplementary analgesics. We conclude that, as compared with releasing the tourniquet immediately after I.A. injection of morphine, maintaining the tourniquet inflated for 10 min provides superior analgesia and decreases the need for supplemental analgesics.

Adult↗
PubMed1993

Serum endotoxin, tumor necrosis factor, and interleukin-6 response to total hip arthroplasty.

The purpose of this study was to determine if endotoxin, tumor necrosis factor (TNF), and interleukin 6 (IL-6) increased in patients during or after total hip arthroplasty. Endotoxin is absorbed from the gut lumen and stimulates macrophages to make TNF. TNF is one of the stimuli for the increased production of IL-6. All three entities cause fever. If an increase takes place in any of the three, it could contribute to the commonly observed postop fever in total hip patients. Five serum samples were obtained from 12 patients: preoperatively; after the acetabular component was seated intraoperatively; in the recovery room; day 1 postoperatively; and day 3 postoperatively. IL-6 and TNF were measured using monoclonal antibody tests and endotoxin was measured with a chromogenic limulus amoebocyte lysate assay. A statistically significant increase in all three parameters was demonstrated. Endotoxin peaked intraoperatively or in the recovery room, TNF tended to peak in the recovery room, and the peak in IL-6 was more variable. Ten patients had a concomitant postoperative fever.

Adult↗
PubMed1990

Comparison of methohexital and pentobarbital for premedication in children.

Thirty children scheduled for elective orchiopexy or herniotomy were consecutively assigned at random to premedication with methohexital 80 mg/ml, 20 mg/kg rectally, 15 min before transportation to the operating room, or pentobarbital 28 mg/ml, 7 mg/kg rectally, 45 min before transportation. The quality of premedication was recorded at induction with halothane 1-2% and 60% N2O in O2 by mask. All patients received a caudal injection of bupivacaine 1.9 mg/ml, 1.25 ml/kg before surgery. Following completion of anaesthesia, the postoperative wake-up time and the duration of stay in the post-operative recovery room were recorded. The degree and quality of recovery were assessed using the Aldrete score every 30 min until discharge from the recovery room. The group of children receiving methohexital showed a highly significantly shorter awakening time, and a highly significantly shorter stay in the recovery room compared to the pentobarbital group. The children in both groups had a quiet, easy recovery without significant signs of confusion or agitation, and no difference in quality of recovery could be shown. Emergence delirium or agitation in connection with pentobarbital premedication and a possible relation to postoperative pain is discussed.

Anesthesia Recovery Period↗
PubMed2000

[Rating the perioperative period by patients. First evaluation of a new questionnaire].

OBJECTIVE: There is an increasing demand for internal clinical quality assurance. For this reason methods for the assessment of patients' satisfaction and postoperative symptoms and complaints are needed. This article describes a new questionnaire for the measurement of these aspects. METHODS: The questionnaire consists of two parts. Part 1 assesses the intensity of symptoms related to the postoperative periods "recovery room", "first hours on ward" and "current state". Part 2 measures patients' satisfaction with anesthesiological care, unspecific perioperative care and postoperative convalescence. 431 patients completed the questionnaire after an elective operation. RESULTS: Results demonstrate a plausible difference in patients' symptoms between the three postoperative periods. The difference between the remembered complaints in the "recovery room" and the "first hours on ward" is of small degree. Related to the period immediately after anesthesia, women describe a worse state of health than men. Male and female patients do not differ in their satisfaction with anesthesiological care. Older patients describe greater satisfaction with perioperative care than younger ones. There are only a few significant correlations between the intensity of symptoms in the "recovery room" and data from anesthesiological documentation. CONCLUSIONS: The new questionnaire is sensitive for the change of symptoms in the course of postoperative time. Considering the results, a modification of the questionnaire ist suggested. This instrument is to be used in a greater and representative sample of patients now.

Adult↗