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Cephalic spreading levels after volumetric caudal epidural injections in chronic low back pain

The volumetric caudal epidural steroid injection has been advocated to facilitate the delivery of medications to the lesion site. This study was aimed to examine the actual spreading patterns of this technique, using epidurogram. A total of 32 patients with chronic low back pain accompanied by radiculopathy of various causes (degenerative spondylosis, herniated nucleus pulposus, spondylolisthesis, and spinal stenosis) were included. The volumetric caudal epidural injection of the 10 mL mixture of contrast medium 5 mL, 0.5% bupivacaine 1 mL, triamcinolone 1.5 mL (60 mg) and normal saline 25 mL was performed. Immediately after the cessation of the first spread, the subsequent solution of another 10 mL of contrast medium 5 mL, 0.5% bupivacaine 1 mL and normal saline 4 mL was injected. This procedure was repeated serially until the total volume to be 50 mL. Continuous fluoroscopic imaging was obtained after each injection. Average time taken to complete the study was 37 sec per every 10 mL. The spreading levels of the mixture were distributed mainly at mid to lower lumbar area in the majority of the patients. During the subsequent injections, the levels were not changed significantly. This was thought to be due to the minimal resistance in cephalad direction, anatomic variations and Starling effect of epidural space

Keywords : Adult,Aged,Anesthesia,Epidural,Anesthesiology,Anesthetics,Anesthetics,Local,Back,Back Pain,Bupivacaine,Chronic Disease,Contrast Media,drug therapy,Epidural Space,Female,Fluoroscopy,Glucocorticoids,Heart,Humans,Injections,Korea,Low Back Pain,Male,Middle Aged,Pain,Patients,pharmacokinetics,Radiculopathy,Spinal Diseases,Spinal Stenosis,Spondylolisthesis,Spondylosis,Time,Triamcinolone,Universities,, Spreading,Levels,After,Volumetric,Caudal, occipital neuralgia and fibromyalgia

Date of Publication : 2001 Apr

Authors : Kim KM;Kim HS;Choi KH;Ahn WS;

Organisation : Department of Anesthesiology and Pain Medicine, Hankang Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Korea. KMINKIM@shinbiro.com

Journal of Publication : J Korean Med Sci

Pubmed Link : https://www.ncbi.nlm.nih.gov/pubmed/11306746

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