PMID- 30982564 OWN - NLM STAT- MEDLINE DCOM- 20190603 LR - 20190603 IS - 1471-6771 (Electronic) IS - 0007-0912 (Linking) VI - 122 IP - 6 DP - 2019 Jun TI - Effects of low-dose intraoperative fentanyl on postoperative respiratory complication rate: a pre-specified, retrospective analysis. PG - e180-e188 LID - S0007-0912(19)30218-1 [pii] LID - 10.1016/j.bja.2019.03.017 [doi] AB - BACKGROUND: Fentanyl is one of the most frequently administered intraoperative drugs and may increase the risk of postoperative respiratory complications (PRCs). METHODS: We performed a pre-specified analysis of 145 735 adult non-cardiac surgical cases under general anaesthesia. Using multivariable logistic regression, we evaluated the association of intraoperative fentanyl dose and PRCs within 3 days after surgery (defined as reintubation, respiratory failure, pneumonia, pulmonary oedema, or atelectasis). We examined effect modification by patient characteristics, surgical site, and anaesthetics used. RESULTS: PRCs within 3 days after surgery occurred in 18 839 (12.9%) patients. In comparison with high intraoperative fentanyl doses [median: 3.85; inter-quartile range (IQR): 3.42-4.50 mug kg(-1), quartile 4 (Q4)], low intraoperative fentanyl dose [median: 0.80, IQR: 0.00-1.14 mug kg(-1), quartile 1 (Q1)] was significantly associated with lower odds of PRCs [Q1 vs Q4: 10.9% vs 16.2%; adjusted odds ratio (aOR) 0.79; 95% confidence intervals (CI) 0.75-0.84; P<0.001; adjusted absolute risk difference (aARD) -1.7%]. This effect was augmented by thoracic surgery (P for interaction <0.001; aARD -6.2%), high doses of inhalation anaesthetics (P for interaction=0.016; aARD -2.2%) and neuromuscular blocking agents (NMBAs) (P for interaction=0.001; aARD -3.4%). Exploratory analysis demonstrated that compared with no fentanyl, low-dose fentanyl was associated with lower rates of PRCs (decile 2 vs decile 1: aOR 0.82, CI 0.75-0.89, P<0.001). CONCLUSIONS: Intraoperative low-dose fentanyl (about 60-120 mug for a 70 kg patient) was associated with lower risk of postoperative respiratory complications compared with both no fentanyl and high-dose fentanyl. Beneficial effects of low-dose fentanyl were magnified in specific patient subgroups. CLINICAL TRIAL REGISTRATION: NCT03198208. CI - Copyright (c) 2019 British Journal of Anaesthesia. Published by Elsevier Ltd. All rights reserved. FAU - Friedrich, S AU - Friedrich S AD - Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA; Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA. FAU - Raub, D AU - Raub D AD - Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA; Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA. FAU - Teja, B J AU - Teja BJ AD - Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA. FAU - Neves, S E AU - Neves SE AD - Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA. FAU - Thevathasan, T AU - Thevathasan T AD - Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA. FAU - Houle, T T AU - Houle TT AD - Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA. FAU - Eikermann, M AU - Eikermann M AD - Department of Anesthesia, Critical Care and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA; Universitatsklinikum Essen, Essen, Germany. Electronic address: meikerma@bidmc.harvard.edu. LA - eng SI - ClinicalTrials.gov/NCT03198208 PT - Journal Article DEP - 20190411 PL - England TA - Br J Anaesth JT - British journal of anaesthesia JID - 0372541 RN - 0 (Analgesics, Opioid) RN - UF599785JZ (Fentanyl) SB - IM MH - Adolescent MH - Adult MH - Aged MH - Aged, 80 and over MH - Analgesics, Opioid/*administration & dosage/adverse effects MH - Anesthesia, General/methods MH - Dose-Response Relationship, Drug MH - Female MH - Fentanyl/*administration & dosage/adverse effects MH - Humans MH - Intraoperative Period MH - Male MH - Middle Aged MH - Postoperative Complications/chemically induced/*prevention & control MH - Registries MH - Respiration Disorders/chemically induced/*prevention & control MH - Retrospective Studies MH - Young Adult OTO - NOTNLM OT - analgesics OT - fentanyl OT - opioid OT - pneumonia OT - postoperative complications OT - respiratory failure OT - respiratory tract diseases EDAT- 2019/04/16 06:00 MHDA- 2019/06/04 06:00 CRDT- 2019/04/16 06:00 PHST- 2018/11/07 00:00 [received] PHST- 2019/02/24 00:00 [revised] PHST- 2019/03/15 00:00 [accepted] PHST- 2019/04/16 06:00 [pubmed] PHST- 2019/06/04 06:00 [medline] PHST- 2019/04/16 06:00 [entrez] AID - S0007-0912(19)30218-1 [pii] AID - 10.1016/j.bja.2019.03.017 [doi] PST - ppublish SO - Br J Anaesth. 2019 Jun;122(6):e180-e188. doi: 10.1016/j.bja.2019.03.017. Epub 2019 Apr 11.