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Stepwise tapering of remifentanil at the end of surgery decreased postoperative pain and the need of rescue analgesics after thyroidectomy.

AbstractBACKGROUND:
This study was designed to investigate whether stepwise tapering of remifentanil at the end of surgery could decrease postoperative pain scores and requirements of rescue analgesics after remifentanil-desflurane anesthesia in patients with thyroidectomy.
METHODS:
Sixty two patients undergoing thyroidectomy under general anesthesia were randomly allocated into two groups. All patients were anesthetised with desflurane and high-dose remifentanil. Remifentnail was infused at the rate of 0.3 μg/kg/min until the end of surgery in patients of the control group (group A) whereas remifentanil was tapered gradually from 0.3 to 0.1 μg/kg/min until the end of surgery for at least 30 minutes in patients with group B. Pain scores (0-100 numerical rating scale, NRS), rescue analgesic requirements and adverse events were assessed at 30 min, 2 h, 6 h, 12 h, and 24 h after operation.
RESULTS:
There was a significant decrease in pain scores at 30 min (20 [0-80] vs. 50 [0-100], P = 0.002) and 2 h (30 [10-60] vs. 40 [20-80], P = 0.018) after surgery in group B compared with group A. In addition, rescue analgesics are less required in group B than in group A postoperatively (2 [1-3] vs. 3 [2,3], P = 0.039). There were no significant differences in adverse events between the two groups.
CONCLUSIONS:
Tapering of remifentanil at the end of surgery decreased postoperative pain scores immediately after thyroidectomy with desflurane and high-dose remifentanil anesthesia.
TRIAL REGISTRATION:
Clinical Research information Service (CRiS, registration number KCT0000589).
AuthorsSun Sook Han, Sang Hwan Do, Tae Hee Kim, Won Joon Choi, Ji Sup Yun, Jung Hee Ryu
JournalBMC anesthesiology (BMC Anesthesiol) Vol. 15 Pg. 46 (Apr 08 2015) ISSN: 1471-2253 [Electronic] England
PMID25927221 (Publication Type: Journal Article, Randomized Controlled Trial)
Chemical References
  • Analgesics
  • Anesthetics, Combined
  • Anesthetics, Inhalation
  • Anesthetics, Intravenous
  • Piperidines
  • Desflurane
  • Isoflurane
  • Remifentanil
Topics
  • Adult
  • Aged
  • Analgesics (therapeutic use)
  • Anesthesia Recovery Period
  • Anesthetics, Combined (administration & dosage)
  • Anesthetics, Inhalation (administration & dosage)
  • Anesthetics, Intravenous (administration & dosage)
  • Desflurane
  • Female
  • Humans
  • Infusions, Intravenous
  • Isoflurane (administration & dosage, analogs & derivatives)
  • Male
  • Middle Aged
  • Pain Measurement
  • Pain, Postoperative (prevention & control)
  • Piperidines (administration & dosage)
  • Prospective Studies
  • Remifentanil
  • Single-Blind Method
  • Thyroid Neoplasms (surgery)
  • Thyroid Nodule (surgery)
  • Thyroidectomy (methods)
  • Young Adult

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