Influence of duration of lateral decubitus on the spread of hyperbaric tetracaine during spinal anesthesia: a prospective time-response study
| Autor: | I. A. Iselin-Chaves, Alain Forster, Zdravko Gamulin, A. Schweizer, Martin-Salvaj G, Van Gessel E |
|---|---|
| Rok vydání: | 1994 |
| Předmět: |
Adult
Male medicine.medical_specialty Supine position Time Factors Tetracaine medicine.drug_class Posture Anesthesia Spinal Subarachnoid Space Time response medicine Pressure Humans Prospective Studies health care economics and organizations Aged Local anesthetic business.industry LATERAL DECUBITUS Spinal anesthesia Middle Aged Surgery Anesthesiology and Pain Medicine Epinephrine Duration (music) Anesthesia Female business medicine.drug |
| Zdroj: | Anesthesia and analgesia. 79(6) |
| ISSN: | 0003-2999 |
| Popis: | Searching for a differential spinal block between dependent and nondependent sides, we evaluated a prospective randomized time-response study of the influence of the duration of lateral decubitus on the spread of hyperbaric local anesthetic solution during spinal anesthesia in 60 patients undergoing lower limb surgery. In a lateral position with the operated side dependent, all patients received 12 mg of lyophilized tetracaine with 0.2 mg epinephrine in 2.5 mL 10% dextrose and were randomized into four groups according to the duration of lateral decubitus after spinal injection: Group 0, patients immediately turned supine after spinal injection; Group 6, 6 min in lateral decubitus then supine; Group 12, 12 min in lateral decubitus then supine; Group 18, 18 min in lateral decubitus then supine. There was no difference in maximum sensory level between both sides in the same group nor between the four groups. In all four groups a comparable number of patients had a Grade 4 motor block on the dependent as well as on the nondependent side. A positive correlation found between duration of lateral decubitus and duration of sensory block on the dependent side suggested a preferential spread of hyperbaric local anesthetics. This differential spread was confirmed by the positive correlation between the duration of lateral decubitus and the difference in duration between dependent and nondependent sides of both sensory and motor blocks. However, because of the minimal differences between groups, we believe there is no reason to routinely maintain patients in the lateral position after performing spinal anesthesia. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|