title: Reversible urinary retention secondary to excessive morphine delivered by an intrathecal morphine pump.
abstract: Reversible complication of intrathecal morphine delivered by an implanted pump is described in one patient. The patient was evaluated initially using a contrast CT of the thoracic spine as well as urodynamics studies. After decreasing the intrathecally administered morphine from 2 mg/24 hr to .5 mg/24 hr, the patient's neurogenic bladder reversed within 4 days. Implanted pumps to deliver intrathecal narcotic medications are being used currently to treat intractable pain. This is a case report of reversible urinary retention secondary to the intrathecal narcotic.
authors.affiliation: Inland Empire Spine Institute, Riverside, California.
authors.forename: G S
authors.initials: GS
authors.lastname: Uppal
authors.forename: T T
authors.initials: TT
authors.lastname: Haider
authors.forename: A
authors.initials: A
authors.lastname: Dwyer
authors.forename: J A
authors.initials: JA
authors.lastname: Uppal
mesh_terms: D000368:Aged; D004305:Dose-Response Relationship, Drug; D004868:Equipment Failure; D006801:Humans; D015918:Infusion Pumps, Implantable; D007278:Injections, Spinal; D008297:Male; D009020:Morphine / Q000008:administration & dosage / Q000009:adverse effects*; D013131:Spine / Q000000981:diagnostic imaging; D013909:Thorax; D014057:Tomography, X-Ray Computed; D001750:Urinary Bladder, Neurogenic / Q000139:chemically induced; D016055:Urinary Retention / Q000139:chemically induced*; D014563:Urodynamics
chemical_list: D009020:Morphine