Midwive's assessment of the upper sensory level after epidural blockade

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Abstract
The ability of midwives to assess accurately the level of epidural blockade after a short period of instruction was examined. Seventy-two midwives estimated the upper level bilaterally in 100 patients, by detection of the loss of sensation to a cold stimulus. The midwife and anaesthetist were in complete agreement over the level of block in 71.5% of cases; the midwife overestimated the height of the block in 9.5% of cases, and underestimated in 19%. The midwife underestimated by three spinal segments in 1.5% of cases, and never by more. The technique was acceptable to patients and midwives alike. This procedure should enable safe management of obstetric analgesia, whoever administers top-ups; accurate detection of a block that recedes below therapeutic levels should facilitate earlier top-ups and thus reduce pain for the patient in labour.