spinal anesthetic success/ failure at 2 hour after the anesthetic induction [clinicaltrials_resource:00045e4b3d9ab5cf75513c6b723c5750]

when (1) a bilateral T12 sensory block to pinprick within 15 minutes of intrathecal drug administration with sensory/motor block scale ≥ 2 and (2) the level of sensory block at the end of surgery was higher than or equal to T12 with sensory/motor block scale ≥ 2.

spinal anesthetic success/ failure at 2 hour after the anesthetic induction [clinicaltrials_resource:00045e4b3d9ab5cf75513c6b723c5750]

when (1) a bilateral T12 sensory block to pinprick within 15 minutes of intrathecal drug administration with sensory/motor block scale ≥ 2 and (2) the level of sensory block at the end of surgery was higher than or equal to T12 with sensory/motor block scale ≥ 2.