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Effect of Timing of Intravenous Ketorolac Administration on Pain in Orbitotomy Surgery

Ophthalmic Plast Reconstr Surg. 2021 Aug 10. doi: 10.1097/IOP.0000000000002024. Online ahead of print.

ABSTRACT

PURPOSE: Intravenous ketorolac (IVK) is an effective and safe medication to reduce postoperative pain in the setting of oculofacial surgery. This study was undertaken to determine the impact of timing of IVK administration in orbital surgery on the reduction of postoperative pain score and opioid requirement.

METHODS: Patients either received IVK immediately before (n = 50), during (n = 50) or after (n = 50) orbital surgery or acted as controls (n = 50). Pain scores were assessed via an analog scale immediately after surgery and on the first postoperative day. The requirements for opioid analgesics were recorded. Statistical analyses were performed via a dedicated computerized software package.

RESULTS: One hundred fifty patients received IVK; 50 before incision (28 males, 22 females, mean age 52.2), 50 intraoperatively (20 males, 30 females, mean age 49.8) and 50 in the immediate postoperative period (26 males, 24 females, mean age = 55.3). Additionally, 50 patients acted as controls (26 males, 24 females, mean age 54). Immediately after surgery, administration of IVK resulted in statistically significant reduction in pain score regardless of the timing of dosing as compared with control patients (prior = 2.36, intraoperative = 2.34, postoperative = 2.46 vs. control 5.44, p < 0.0001). Eleven patients (22%) in the control group required opioids, whereas, in the IVK cohorts, only 2 (4%-preoperative), 1 (2%-intraoperative), and 1 (2%-postoperative) patients needed these medications (p = 0.0039).

CONCLUSIONS: In the setting of orbital surgery, IVK reduced pain scores and opioid requirement, regardless of the timing of administration, as compared with patients that did not receive the medication.

PMID:34380997 | DOI:10.1097/IOP.0000000000002024

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