Cr. Green et al., INTRAOPERATIVE KETOROLAC HAS AN OPIOID-SPARING EFFECT IN WOMEN AFTER DIAGNOSTIC LAPAROSCOPY BUT NOT AFTER LAPAROSCOPIC TUBAL-LIGATION, Anesthesia and analgesia, 82(4), 1996, pp. 732-737
Ketorolac tromethamine (Toradol(R)) is a parenteral, nonsteroidal anti
inflammatory drug that is being extensively used to provide postoperat
ive analgesia. This study evaluated whether intraoperative ketorolac w
ould act synergistically with fentanyl to decrease postoperative analg
esic requirements in outpatients undergoing gynecologic procedures. Th
e patients studied were adult ASA physical status I or II females sche
duled for diagnostic laparoscopy (DL) (n = 80) or laparoscopic tubal l
igation (TL) (n = 46). Each patient received fentanyl 2 mu g/kg intrav
enously (IV) before induction, followed by a standardized propofol ane
sthetic and 2 mt of saline or ketorolac 60 mg IV in a randomized doubl
e-blind fashion 30 min before the anticipated end of the operative pro
cedure. Patients were assessed for postoperative pain via a 10-cm visu
al analog scale (VAS) (0 = no pain; 10 = severe pain) before analgesic
treatment in the postanesthesia care unit (PACU). Severe postoperativ
e pain (VAS of 5 or more) was treated with incremental doses of fen ta
nyl, 25-50 mu g IV by a blinded PACU nurse. Ibuprofen or acetaminophen
with codeine was administered for pain control once the patient toler
ated oral medications. This study showed that intraoperative ketorolac
(60 mg IV) with fentanyl (2 mu g/kg IV) administered at the induction
of anesthesia resulted in significant opioid sparing and a diminution
in pain in the DL sample but not in the TL sample. The analgesic regi
men was also associated with a lower incidence of nausea and vomiting
and resulted in earlier discharge, which was not seen after TL. These
results demonstrate that pain after TL is far greater than that after
DL, which suggests that these procedures should be considered separate
ly when designing analgesic regimens.