Two patients on the same day using the same spinal kits did not obtain adequate anesthesia.Previous failed spinal was approximately 2 months ago.Both spinal procedures were uneventful, however both had insufficient anesthesia at 30 min post-block (weak but able to move feet, incomplete sensory block).Each case required a repeat spinal which carries an increased risk of high spinal + delays cases.We were using "new" spinal kits from a different manufacturer.These kits include 0.75% bupivacaine with dextrose used for spinal anesthetic.Both failed spinals used the bupivacaine from the kit.Bupivacaine from the anesthesia cart during the second spinals for each patient and the both worked great.Per md, "possibly a bad batch of bupivacaine in these new spinal kits.Failed spinals are infrequent and seems like too much of a coincidence to have it happen back-to-back like that with a new spinal kit".
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