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Query: UMLS:C0027497 (nausea)
 23,468 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

To evaluate unwanted side effects expressed in hemodynamic parameters, postanesthetic recovery and quality of intravenous total anesthesia (IVTA) with propofol, fentanyl and atracurium. A prospective study in 292 patients undergoing general surgery. Fifty-three percent of the patients were ASA I, 32.2% were ASA II and 14.8% were ASA II, representing a wide range of ages, weights and heights. Mean time of anesthesia was 108.25 +/- 56.96 min. Anesthesia was achieved with propofol 0.108 +/- 0.027 mg/kg/min, fentanyl 0.093 +/- 0.035 microgram/kg/min and atracurium 0.011 +/- 0.0034 mg/kg/min. Slight pain was evident at injection in 1.7% of the patients. Greater hemodynamic instability was recorded at induction, with mean decreases in systolic and diastolic arterial pressures of 16% and 10%, respectively, with scarcely any response to intubation and extubation. Anesthetic recovery was recorded at 5.95 +/- 4.97 min, with surgical amnesia in 100% of the patients. Nausea was seen in 3.42% and vomiting in 1.7%. Patient evaluation of anesthetic technique was "good" in 60.3% and "excellent" in 39.7%. Propofol dose was significantly (p < 0.05) correlated with age (r = -0.33) and time of anesthesia (r = -0.4). IVTA with propofol and fentanyl in general surgery provides adequate maintenance of anesthesia for surgery and recovery, with good hemodynamic stability. In older patients and longer times of anesthesia, the total dose of propofol administered decreases, with negative effect on time and quality of recovery. Total dose of propofol administered is not significantly correlated with either time or quality of recovery.
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PMID:[Total intravenous anesthesia in general surgery]. 799 10

Are patients who are provided with details about anaesthesia risks on the eve of surgery better informed, and does the information increase their anxiety? Forty (ASA Class I or II) patients scheduled for surgery requiring general anaesthesia were randomly allocated to either a routine or a detailed information group. Levels of anxiety were assessed by the Spielberger State-Trait Anxiety Inventory. Actual knowledge of risks was assessed by a special visual analogue scale. Patients had experienced an average of five previous anaesthetics and so most patients in both groups knew the risks of common complications such as nausea and sore throat and were able to represent them accurately on the visual analogue scale. The detailed group, however, had gained more accurate knowledge of the likelihood of two rare complications, death (P < 0.001) and serious tooth damage (P < 0.05). Notwithstanding, there was no difference between the groups in anxiety. Thus, provision of detailed information about the risks of the complications of general anaesthesia did increase patients' knowledge but did not increase patients' levels of anxiety.
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PMID:The effects of providing preoperative statistical anaesthetic-risk information. 812 37

We have compared the efficacy of ondansetron with droperidol and saline in the prevention of postoperative nausea and vomiting (PONV) in 120 ASA I and II patients undergoing hip and knee replacements and femoral resections. They received a standardized combined extradural and general anaesthetic and at the end of surgery were allocated randomly to receive droperidol 1.25 mg, ondansetron 4 mg or 0.9% saline in a 25-ml bag. An extradural mixture containing 0.5% plain bupivacaine 10 ml, fentanyl 500 micrograms and saline 30 ml was infused and PONV assessed for 24 h. Both ondansetron and droperidol were superior to saline in preventing vomiting (P < 0.01) although there was no significant difference between them. The incidence of vomiting was 17% for ondansetron, 18% for droperidol and 45% for saline. There was no significant difference in the incidence of nausea between the groups. Metoclopramide, the rescue antiemetric, was demanded by 38%, 34% and 17% of patients receiving saline, droperidol and ondansetron, respectively (ondansetron vs droperidol P < 0.05).
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PMID:Double-blind comparison of ondansetron, droperidol and saline in the prevention of postoperative nausea and vomiting. 819 6

Following arthroscopic surgery of the knee, 60 ASA I-II patients were randomly allocated to three different groups (n = 20 each) in an attempt to establish the best postoperative analgesic protocol: 20 ml of bupivacaine (0.25%; 50 mg) intra-articularly (IA) (Group 1); continuous three-in-one lumbar plexus block using a catheter to administer 0.25 ml/kg of bupivacaine (0.25%; single-shot) plus continuous pump infusion of the same drug (0.03 ml.kg-1 x h-1 of 0.25% bupivacaine for 24 h) (Group 2); or 1 mg of morphine with 20 ml of saline IA (Group 3). The results were appraised in a double-blind manner, and the degree of postoperative pain was evaluated by visual analog scale (VAS) at constant hourly intervals for the first 24 h, by the incidence of secondary effects, and by the need for complementary analgesia. Group 2 (three-in-one) VAS values were lower 16 and 24 h after surgery and also globally (P < 0.05), with respect to the other two groups. Five patients in Groups 1 and 3 required complementary analgesia, while three patients in Group 1 suffered nausea. No other secondary effects were observed. We conclude that all three analgesic methods proved efficient, as reflected by the scant requirements for additional analgesics and the degree of expressed patient satisfaction. However, lumbar plexus block (three-in-one) with continuous bupivacaine infusion was most effective, and, although it constitutes an added technique, its scant complications and easy performance make its use advisable.
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PMID:A comparative study of analgesia after knee surgery with intraarticular bupivacaine, intraarticular morphine, and lumbar plexus block. 821 56

Phase II and III studies are tightly controlled trials investigating adverse effects before government approval of a new drug. However, because postapproval Phase IV studies involve a much larger and more complex population, the true nature of adverse effects can be seen. We analyzed Phase IV data for the new drug propofol with regard to the incidence of adverse events, and evaluations of such events by anesthesiologists versus postanesthesia care unit (PACU) nurses. Data pertained to 25,981 patients, 1722 institutions, and 1819 anesthesiologists giving propofol in three anesthetic regimens. Inclusion criteria were liberal: age, 18-80 yr; ASA physical status I-III; no continuing pregnancy; and no prior adverse anesthetic experience. Anesthesiologists and PACU nurses used data collection forms to record demographic, perioperative, and outcome variables; to evaluate recovery (excellent, good, or poor); and to describe adverse events. Adverse events were reported for 2813 patients (10.8%); the most common events were pain on injection (5.2%), hypotension (1.1%), nausea/vomiting (1.9%), and excitement (1.3%). The incidences of pain on injection and nausea/vomiting were approximately one-half and one-fifth, respectively, the values reported in earlier studies. Six hundred thirty-three patients (2.4%) had a "poor" recovery according to one or both of the evaluators (the anesthesiologist or PACU nurse). The PACU nurse was more influenced by nausea, vomiting, or postoperative pain; and the anesthesiologist was more influenced by postoperative confusion or delayed emergence from anesthesia. For only 0.6% of patients did both evaluators rate recovery as poor. Anesthesiologists gave more weight to intraoperative adverse events, and nurses to postoperative events.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:Adverse events in a multicenter phase IV study of propofol: evaluation by anesthesiologists and postanesthesia care unit nurses. 821 94

Patient-controlled analgesia (PCA) is rarely used on surgical wards despite described advantages of this method as compared to conventional techniques. Uncertainties in patient selection and insufficient evaluation of this technique may explain these circumstances. The aim of our study was to evaluate PCA on general surgery and traumatology wards by means of standardized criteria for technology assessment (i.e. safety, practicability, benefit for patients and medical staff) and the efficacy of pain relief. In a prospective study we investigated 120 patients. In phase I, we performed analgesic therapy with tramadol/metamizol (50 ASA status I-IV patients). In phase II, piritramid had been applied to 70 ASA status I-II patients after an intermediate analysis of phase I. In 7% of the patients technical problems led to an early interruption even at the end of the study period. There were, however, no incidents which caused vital problems for the patients. A mean postoperative pain level of 55 visual analogue scale points (0-100 point scale) was achieved with tramadol/metamizol. PCA was stopped in 16% of the patients due to the occurrence of nausea or vomiting and in two patients due to insufficient pain relief. The use of piritramid in phase II led to lower pain levels and no interruptions of PCA because of ineffectivity or nausea/vomiting.(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:[Patient-controlled analgesia (PCA) for postoperative pain relief. A prospective observational study for evaluating the technology in a ward routine]. 826 45

The effect of a single intravenous dose of ondansetron in preventing postoperative nausea and emesis (retching and vomiting) (PONV) was investigated in a randomized, double-blind, placebo-controlled, multicentre, international study. Women of ASA class I-III, requiring gynaecological laparotomy, vaginal hysterectomy, or major vaginal surgery were selected for study. Two hundred and thirty-five received placebo, 231 received 1 mg ondansetron, 228 received 8 mg ondansetron and 229 received 16 mg ondansetron, as an infusion over five minutes before the induction of anaesthesia. A standardized balanced anaesthetic technique was employed. This consisted of premedication with either diazepam or temazepam, thiopentone induction, maintenance with nitrous oxide in oxygen supplemented with enflurane or isoflurane, intraoperative analgesia with fentanyl, neuromuscular blockade with any choice of agent and reversal with neostigmine and atropine. Postoperative analgesia was achieved with morphine, and prochlorperazine or metoclopramide were given if a rescue antiemetic was required. A greater percentage of patients in the 8 mg and 16 mg ondansetron groups experienced no postoperative emesis (44% and 39% respectively) than in the placebo and 1 mg ondansetron groups (29% and 28% respectively) for the first 24 hr postoperative period (8 mg vs placebo and 1 mg: P < or = 0.001; 16 mg vs placebo: P < 0.05; 16 mg vs 1 mg: P < 0.05). Similarly, the percentage of patients who did not experience postoperative nausea were 20%, 26%, 31% and 28% for the placebo, 1 mg, 8 mg and 16 mg ondansetron treatment groups, respectively (8 mg and 16 mg vs placebo P < 0.05).(ABSTRACT TRUNCATED AT 250 WORDS)
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PMID:A single i.v. dose of ondansetron 8 mg prior to induction of anaesthesia reduces postoperative nausea and vomiting in gynaecological patients. 828 92

We studied 200 female patients (ASA group 1) scheduled for termination of pregnancy under general anaesthesia. The patients were randomly allocated to receive one of four anaesthetic combinations; (1) propofol in combination with ketamine 20 mg, (2) propofol in combination with fentanyl 0.1 mg, (3) thiopentone in combination with fentanyl 0.1 mg, (4) methohexitone in combination with fentanyl 0.1 mg. All patients were breathing oxygen in nitrous oxide 1:2. Patients' self assessments of per- and postoperative course and time to discharge were compared. No patient's response suggested light anaesthesia, but dreams were frequently experienced during anaesthesia especially among the propofol-ketamine combination (29 out of 50). Time to discharge was shortest for the groups of patients given propofol; the mean time was 93 and 96 min for the ketamine and fentanyl groups respectively. During the recovery period significantly more patients experienced pain in the ketamine-propofol group. Complaints of nausea were seen in only 15 patients, and seven patients noted psycho-mimetic side effects during recovery, without any differences between the groups. All four combinations tested offered good conditions for short outpatient procedures. However, the propofol-fentanyl combination was found to offer the best quality of anaesthesia as assessed by the patients themselves.
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PMID:Patient evaluation of four different combinations of intravenous anaesthetics for short outpatient procedures. 828 50

The influence of the addition of epinephrine to epidural morphine on postoperative analgesia were investigated in 60 ASA physical status I or II patients aged average 45 yr. The treatments were given following lower extremity operation under epidural anesthesia with 2% Xylocaine solution in 20 mL. The subjects were randomly divided into 2 groups. Group A (n = 30) received 2 mg epidural morphine in 10 mL normal saline without epinephrine. Group B (n = 30) received 2 mg epidural morphine in 10 mL normal saline with epinephrine 0.1 mg (1:100,000, 10 micrograms/mL). Patients were assessed for quality and duration of postoperative analgesia, as well as the incidence and severity of side effects after epidural morphine administration. The addition of epinephrine to epidural morphine had significantly increased the quality and duration of analgesia. The side effects of pruritus, nausea, vomiting, and urinary retention were more intense after epinephrine-morphine administration. However, respiratory depression was not observed in both groups.
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PMID:Influence of epinephrine as an adjuvant to epidural morphine for postoperative analgesia. 830 50

A prospective, randomized, double-blind study was performed to compare the analgesic efficacy and side effects of epidural fentanyl, 25 micrograms vs 50 micrograms, when used to supplement epidural anaesthesia for elective Caesarean section. Fifty ASA I and II patients were randomized into two groups: Group I (n = 24) received 25 micrograms and Group II (n = 26) received 50 micrograms of epidural fentanyl after the epidural test dose. No differences between the two groups were found on any measures of intraoperative pain, nausea, drowsiness, respiratory depression, hypotension, pruritus and neonatal outcome. The low levels of pain experienced by patients indicates that doses higher than 50 micrograms of epidural fentanyl are usually unnecessary for optimal analgesia.
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PMID:A comparison of two doses of epidural fentanyl during caesarean section. 840 56


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