viernes, 26 de octubre de 2012

Esteroides epidurales en dolor crónico

Paro cardiopulmonar después de inyección cervical peridural


Cardiopulmonary arrest following cervical epidural injection.
Stauber B, Ma L, Nazari R.
Emanuel Medical Center, 825 Delbon Ave., Turlock, CA 95382, USA.
Pain Physician. 2012 Mar-Apr;15(2):147-52.
Abstract
Epidural steroid injection is a common treatment for the management of pain in a wide variety of patients. It is generally well tolerated and perceived to have few side effects, with a low risk of serious complications. Only a handful of reports exist that describe life-threatening complications such as subdural hematoma, respiratory depression, vasovagal response, and pneumocephalus. This is a case report of a 67-year-old woman with a relatively unremarkable past medical history, other than rheumatoid arthritis, osteoarthritis, and hypertension, who suffered from chronic neck pain treated with cervical epidural steroid injection at the C6-C7 level. She went into immediate cardiopulmonary arrest following the injection. She was brought to the emergency department by ambulance and resuscitated, and was found to have pneumocephalus. Ultimately, she made a relatively full recovery over the following weeks. Cardiopulmonary arrest is a rare but potentially deadly side effect of epidural steroid injection. To the best of our knowledge, this is the first report of such an arrest following a steroid injection in the cervical spinal region. There are several possible mechanisms for the immediate arrest, including cardioacceleratory center blockade, severe vasovagal response, iatrogenic pneumocephalus, and involvement of the phrenic nerve followed by apnea. Our conclusion in this case is that the most likely scenario was injection of the C6-C7 level led to a blockade of the cardiac accelerator fibers located just below in the T1-T4 spinal level, causing a sympathetic blockade and profound bradycardia, leading to cardiopulmonary arrest.
http://www.painphysicianjournal.com/2012/march/2012;15;147-152.pdf


Esteroides epidurales en el tratamiento del dolor espinal crónico: revisión sistemática
Epidural steroids in the management of chronic spinal pain: a systematic review.
Abdi S, Datta S, Trescot AM, Schultz DM, Adlaka R, Atluri SL, Smith HS, Manchikanti L.
University of Miami, Miller School of Medicine, Miami, FL 33136, USA.sabdi@med.miami.edu
Pain Physician. 2007 Jan;10(1):185-212.
Abstract
BACKGROUND: Epidural injection of corticosteroids is one of the most commonly used interventions in managing chronic spinal pain. However, there has been a lack of well-designed randomized, controlled studies to determine the effectiveness of epidural injections. Consequently, debate continues as to the value of epidural steroid injections in managing spinal pain. OBJECTIVE: To evaluate the effect of various types of epidural steroid injections (interlaminar, transforaminal, and caudal), in managing various types of chronic spinal pain (axial and radicular) in the neck and low back regions. STUDY DESIGN: A systematic review utilizing the criteria established by the Agency for Healthcare Research and Quality (AHRQ) for evaluation of randomized and non-randomized trials, and criteria of Cochrane Musculoskeletal Review Group for randomized trials were used. METHODS: Data sources included relevant English literature performed by a librarian experienced in Evidence Based Medicine (EBM), as well as manual searches of bibliographies of known primary and review articles and abstracts from scientific meetings within the last 2 years. Three reviewers independently assessed the trials for the quality of their methods. Subgroup analyses were performed among trials with different control groups, with different techniques of epidural injections (interlaminar, transforaminal, and caudal), with different injection sites (cervical/thoracic, lumbar/sacral), and with timing of outcome measurement (short- and long-term). OUTCOME MEASURES: The primary outcome measure is pain relief. Other outcome measures were functional improvement, improvement of psychological status, and return to work. Short-term improvement is defined as 6 weeks or less, and long-term relief is defined as 6 weeks or longer. RESULTS: In managing lumbar radicular pain with interlaminar lumbar epidural steroid injections, the evidence is strong for short-term relief and limited for long-term relief. In managing cervical radiculopathy with cervical interlaminar epidural steroid injections, the evidence is moderate. The evidence for lumbar transforaminal epidural steroid injections in managing lumbar radicular pain is strong for short-term and moderate for long-term relief. The evidence for cervical transforaminal epidural steroid injections in managing cervical nerve root pain is moderate. The evidence is moderate in managing lumbar radicular pain in post lumbar laminectomy syndrome. The evidence for caudal epidural steroid injections is strong for short-term relief and moderate for long-term relief, in managing chronic pain of lumbar radiculopathy and postlumbar laminectomy syndrome. CONCLUSION: There is moderate evidence for interlaminar epidurals in the cervical spine and limited evidence in the lumbar spine for long-term relief. The evidence for cervical and lumbar transforaminal epidural steroid injections is moderate for long-term improvement in managing nerve root pain. The evidence for caudal epidural steroid injections is moderate for long-term relief in managing nerve root pain and chronic low back pain.
http://www.painphysicianjournal.com/2007/january/2007;10;185-212.pdf


Atentamente
Anestesiología y Medicina del Dolor
www.anestesia-dolor.org

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