Epidural nonsteroidal antiinflammatory drugs for cancer pain.

A lthough pain relief with multimodal therapy is excellent in 45%-90% of cancer patients (l), dose escalation eventually occurs. The concurrent use of nonsteroidal antiinflammatory drugs (NSAIDS) to enhance opioid effects while decreasing the dose is recommended. Should NSAIDS and opioids fail, the spinal administration of opioids often results in improved analgesia with reduced opioid side effects w. Several reports have suggested a spinal site of action for NSAIDS (3-7) and synergy with spinal morphine (5). However, appropriate preclinical toxicity testing has not been performed for any commercially available NSAID, and intraspinal application is premature (8). We describe two cases in which epidural NSAIDS were administered by our ambulatory cancer patients without our initial knowledge or approval.

[1]  J. Horn,et al.  Intrathecal ketorolac tromethamine produces analgesia after chronic constriction injury of sciatic nerve in rat , 1996, Canadian journal of anaesthesia = Journal canadien d'anesthesie.

[2]  J. G. Collins,et al.  Intrathecal prostaglandin E1 produces a long-lasting allodynic state , 1995, Pain.

[3]  D. Hillman,et al.  The Antinociceptive Effect of S-(+)-Ibuprofen in Rabbits: Epidural Versus Intravenous Administration , 1995, Anesthesia and analgesia.

[4]  T. Hedner,et al.  Acetaminophen blocks spinal hyperalgesia induced by NMDA and substance P , 1994, Pain.

[5]  O. Hayaishi,et al.  Allodynia evoked by intrathecal administration of prostaglandin E2 to conscious mice , 1994, Pain.

[6]  A. Malmberg,et al.  Pharmacology of the Spinal Action of Ketorolac, Morphine, ST-91, U50488H, and L-PIA on the Formalin Test and an Isobolographic Analysis of the NSAID Interaction , 1993, Anesthesiology.

[7]  J. Eisenach Aspirin, the miracle drug: spinally, too? , 1993, Anesthesiology.

[8]  A. Malmberg,et al.  Antinociceptive actions of spinal nonsteroidal anti-inflammatory agents on the formalin test in the rat. , 1992, The Journal of pharmacology and experimental therapeutics.

[9]  A. Malmberg,et al.  Hyperalgesia mediated by spinal glutamate or substance P receptor blocked by spinal cyclooxygenase inhibition. , 1992, Science.

[10]  O. Hayaishi,et al.  Allodynia evoked by intrathecal administration of prostaglandin F2α to conscious mice , 1992, Pain.

[11]  M. Vasko,et al.  Prostaglandin E2 increases calcium conductance and stimulates release of substance P in avian sensory neurons , 1992, The Journal of neuroscience : the official journal of the Society for Neuroscience.

[12]  R. Bock,et al.  Intrathecal injection of acetylsalicylic acid, salicylic acid and indometacin depresses C fibre-evoked activity in the rat thalamus and spinal cord , 1992, Pain.

[13]  N. Janjan,et al.  Epidural opiates and local anesthetics for the management of cancer pain , 1991, Pain.

[14]  N. Aaronson,et al.  Pain experience and pain management among hospitalized cancer patients. A clinical study , 1989, Cancer.

[15]  Patrick D. Wall,et al.  Dynamic receptive field plasticity in rat spinal cord dorsal horn following C-primary afferent input , 1987, Nature.

[16]  L M Mendell,et al.  Physiological properties of unmyelinated fiber projection to the spinal cord. , 1966, Experimental neurology.