Regional anesthesia
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Regional anesthesia · Mar 1995
Clinical TrialEpidural air injection assessed by transesophageal echocardiography.
The object of this study, using transesophageal echocardiography (TEE) in anesthetized patients, was to investigate the occurrence of venous air embolism (VAE) when air is injected into the epidural space. ⋯ No evidence of clinically significant VAE was seen in any patient. The results suggest that drugs injected into the epidural space may have unexpectedly easy access to the venous circulation with a potential to produce unwanted systemic effects. Clinicians should be alert to the possibility that local anesthetics, or any other drug placed epidurally, may rapidly enter the systemic circulation even without the intravenous placement of an epidural catheter.
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Regional anesthesia · Mar 1995
Randomized Controlled Trial Clinical TrialEpidural clonidine combined with bupivacaine for analgesia in labor. Effects on mother and neonate.
A double-blind study was conducted to assess the efficacy and the safety of epidural clonidine combined with bupivacaine for analgesia during labor. ⋯ The study documents that clonidine improves epidural bupivacaine analgesia during labor and demonstrates transfer of the drug across the placenta. Therefore, a more extensive study is required to determine the incidence of possible side effects of clonidine in neonates.
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Regional anesthesia · Mar 1995
Randomized Controlled Trial Clinical TrialLateral femoral cutaneous nerve block revisited. A nerve stimulator technique.
Regional block of the lateral femoral cutaneous nerve (LFCN) often has disappointing success rates despite the large volumes of local anesthetic used. This study was undertaken to investigate the utility of using a nerve stimulator (NS) to localize and block the LFCN. ⋯ A NS can be used to localize a purely sensory nerve; such as the LFCN, and improve success rates in regional anesthesia.
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Regional anesthesia · Mar 1995
Randomized Controlled Trial Clinical TrialAlkalinization of mepivacaine improves the quality of motor block associated with interscalene brachial plexus anesthesia for shoulder surgery.
Interscalene block has produced appropriate anesthesia for shoulder surgery. Success is partly determined by the quality of motor block achieved. This study was designed to evaluate the influence of alkalinization of mepivacaine on the quality of motor block achieved with interscalene brachial plexus anesthesia. ⋯ Alkalinization of mepivacaine improves the quality of motor block after interscalene brachial plexus block for shoulder surgery.