The Effect of Sphenopalatine Ganglion Block on the Postoperative Pain in Patients Undergoing Septorhinoplasty

Ann Otol Rhinol Laryngol. 2020 Jul;129(7):722-726. doi: 10.1177/0003489420909417. Epub 2020 Feb 22.


Objectives: This study aimed to evaluate the effect of preoperative sphenopalatine ganglion block (SPBG) on the postoperative pain (POP) in patients undergoing septorhinoplasty (SRP).

Methods: A retrospective cohort study was performed. A total of 42 patients that had received septorhinoplasty included in the study. The patients that had received SPBG before the surgery included in the Block group (n:20) and the patients that had not received SPBG before the surgery included in the Control group (n:22). POP was questioned with a numeric rating scale (NRS) at the 30th minute (t1), 1st hour (t2), 4th hour (t3), 12th hour (t4), and 24th hour (t5) and noted. The intraoperative details and the dose of the postoperative rescue analgesics were also noted.

Results: The average dose of Paracetamol that was used in the postoperative first 24 hours was 500 mg in the Block group and 1363 mg in the Control group, and the difference was statistically significant (P = .001). The average dose of Tramadol was 0 mg in the Block group and 45 mg in the Control group, and the difference was statistically significant (P = .001). There was a statistically significant difference among the groups with respect to NRS in the first 24 hours postoperatively (P < .05). The number of the patients requiring rescue analgesics was lower in the Block group than the Control group. The difference was statistically significant at the t1, t2, and t5 time intervals (P > .05).

Conclusions: Preoperative SPGB is an effective option to reduce POP and the need for rescue analgesics for patients undergoing SRP.

Clinical trial number: NCT04020393.

Keywords: block; pain; postoperative; septorhinoplasty; sphenopalatine.

MeSH terms

  • Acetaminophen / therapeutic use
  • Adult
  • Analgesics, Non-Narcotic / therapeutic use*
  • Analgesics, Opioid / therapeutic use*
  • Case-Control Studies
  • Female
  • Humans
  • Male
  • Nasal Septum / surgery*
  • Pain Measurement
  • Pain, Postoperative / drug therapy
  • Pain, Postoperative / prevention & control*
  • Retrospective Studies
  • Rhinoplasty*
  • Sphenopalatine Ganglion Block / methods*
  • Tramadol / therapeutic use
  • Young Adult


  • Analgesics, Non-Narcotic
  • Analgesics, Opioid
  • Acetaminophen
  • Tramadol

Associated data