STUDY OBJECTIVES: To determine the approximate incidence of @entity16 ( @entity16 ) [formerly known as transient radicular irritation (TRI)] associated with @entity8162 spinal anesthesia, and whether @entity3575 prolongs the duration of @entity8162 spinal anesthesia. DESIGN: Unrandomized pilot study. SETTING: Community teaching hospital. @entity1 : 106 consecutive @entity1 scheduled for spinal anesthesia for procedures anticipated to last less than 90 minutes. INTERVENTIONS: All @entity1 received 5% @entity8162 for spinal anesthesia. @entity3575 20 micrograms was added for procedures anticipated to last longer than 45 minutes (but less than 90 min). Intraoperatively the adequacy of duration, level, and intensity of anesthesia were observed. Time from injection of local anesthetic until knee-bending was recorded. Three days postoperatively, @entity1 were questioned intensively in an effort to determine whether @entity615 and/or symptoms consistent with @entity16 had occurred. MEASUREMENTS AND MAIN RESULTS: Duration of anesthesia was adequate in all but one instance. The intensity and the sensory level of anesthesia were satisfactory with one exception, a @entity1 who had an unexpectedly low sensory level (L1) after 60 mg of @entity8162 for cerclage, and who was also was the only @entity1 to develop @entity16 . The incidence of @entity16 (0.9%) was markedly less than that reported after @entity3303 and similar to the incidence observed after @entity1341 . Mild @entity615 without radiation occurred in 11 @entity1 (10%), an incidence that is similar to that seen after @entity1341 and @entity3303 . Compared with @entity8162 alone, the addition of @entity3575 significantly (p = 0.0001) prolonged the time to bending knees from 72 minutes to 97 minutes. CONCLUSIONS: @entity8162 may be a useful alternative to @entity3303 for short procedures, and it is less likely to produce @entity16 . @entity3575 prolongs motor block when added to @entity8162 .

@entity8162 spinal anesthesia: a pilot study of the incidence of XXXX .

@entity1 :: ('9606', 'Species') :: ['woman', 'patients', 'PATIENTS'] @entity16 :: ('MESH:D009422', 'Disease') :: ['transient neurologic symptoms', 'TNS'] @entity8162 :: ('MESH:D011343', 'Chemical') :: ['procaine', 'Procaine'] @entity615 :: ('MESH:D001416', 'Disease') :: ['back pain'] @entity1341 :: ('MESH:D002045', 'Chemical') :: ['bupivacaine'] @entity3303 :: ('MESH:D008012', 'Chemical') :: ['lidocaine'] @entity3575 :: ('MESH:D005283', 'Chemical') :: ['fentanyl', 'Fentanyl']
@entity16 :: (MESH:D009422,Disease) :: ['transient neurologic symptoms']
