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Study aim
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Study the effects and complications of bilateral spinal anesthsia with the unilateral spinal anesthesia in patients suffering unilateral inguinal hernia
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Design
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A clinical trial without control group, with parallel, unblinded, randomized groups
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Settings and conduct
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A peripheral vein No. 18 is inserted per patient and 10 cc/kg of Ringer patient weight is injected. Then, according to the randomization table, each patient enters group B (bilateral spinal anesthesia) or group U (unilateral spinal anesthesia). In group B, patients were placed in a sitting position, after complete sterilization, with a Quincke 25G needle pierced through the L4-L5 intervertebral space after transcutaneous cerebrospinal fluid flow, 2.5 cc of bupivacaine. 0.5% isobar is injected at 1 cc for 30 seconds and is restored to the supine position immediately after the injection is completed. In group U, patients were placed supine, with the lower hernia positioned, after complete sterilization, with the Quincke 25G needle pierced through the L4-L5 intervertebral needle after clear fluid flow. The spinal cord, 1.5 cc of 0.5% isobar bupivacaine, is injected at 1 cc for 30 seconds, remaining in the same position for 15 minutes and then resting on the supine position.
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Participants/Inclusion and exclusion criteria
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Inclusion criteria: Patients with a unilateral inguinal hernia; Patients with grade 1 and two ASA; Exclusion criteria: Patient dissatisfaction with spinal anesthesia; Coagulopathy; Sensitivity to topical anesthetics; Cerebrospinal cord injury; An ulcer or infection in the area of anesthesia; Lack of proper anesthesia for any reason
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Intervention groups
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We have two intervention groups. The first group has bilateral spinal anesthesia and the second group has unilateral spinal anesthesia.
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Main outcome variables
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Blood pressure, heart rate, oxygen saturation