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Abstract
In a study of the factors involved in the occasional failure of continuous obstetric
epidural blockade, contrast injections through epidural catheters and radiographic
screening were undertaken in 35 postpartum patients. The two major causes of inadequate
block were found to be transforaminal escape of the catheter tip, and persistent unilateral
block associated with an obstructive barrier in the epidural space. Recommendations
for overcoming these problems are discussed.
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© 1996 Published by Elsevier Inc.
