Articles: nerve-block.
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Randomized Controlled Trial Clinical Trial
Extent of hyperbaric spinal anesthesia influences the duration of spinal block.
The influence of spread of spinal anesthesia on the duration of spinal blockade has been suggested but never investigated specifically. Because elimination of local anesthetic from subarachnoid space is probably dependent of the surface available for its diffusion and vascular absorption, the current study was designed to evaluate the hypothesis that with a same dose of hyperbaric bupivacaine, a higher anesthetic level would result in a shorter duration of spinal blockade than a lower level. ⋯ The results indicate that with the same dose of hyperbaric bupivacaine, the duration of spinal blockade is longer in patients with restricted spread.
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The psoas compartment acts as a conduit for the nerve roots of the lumbar plexus. Originating at approximately the 12th thoracic vertebrae, this potential compartment continues on caudally, bordered posterolaterally by fascia of the quadratus lumborum and iliacus muscles, medially by the fascia of the psoas major muscle, and anteriorly by the transversalis fascia. ⋯ Spread of the anesthetic to all roots of the plexus occurs in 15 to 20 minutes. Profound sensory and motor blockade can be achieved providing surgical anesthesia as well as long duration postoperative pain relief.
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Ann Fr Anesth Reanim · May 2000
Case Reports[Acute toxic accident following lumbar plexus block with bupivacaine].
We report the case of a patient who experienced ventricular dysrhythmias and seizure five minutes after the injection of 30 mL of 0.5% bupivacaine with 1:200,000 epinephrine, during a lumbar plexus block performed via the posterior approach described by Winnie. The patient who underwent his total hip arthroplasty was still anaesthetised and under controlled ventilation at the time of bupivacaine administration. ⋯ Normal cardiac activity and stable haemodynamic condition were restored after one hour of resuscitation including 15 electric shocks and administration of epinephrine (40 mg) and clonidine (300 micrograms). The patient was discharged without neurologic sequelae after four days in the ICU.
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J. Korean Med. Sci. · Apr 2000
Clinical TrialCT-guided celiac plexus block for intractable abdominal pain.
Treatment of intractable abdominal pain due to inoperable intraabdominal malignancy is important, and the ineffectiveness of pharmacological agents has led many investigators to recommend chemical neurolysis of the celiac ganglions as a treatment. The author describes the technique and results of celiac plexus neurolysis under CT-guidance with various approach routes, including anterior, posterior and transaortic routes. Twenty-eight patients, ranging in age from 36 to 82 years, have been treated with this procedure. ⋯ Mild hypotension occurred in five patients (18%) and transient diarrhea in six patients (21%). Twenty-one (75%) of the 28 patients had some relief of pain and 17 of these patients (61%) had good relief of pain after the procedure. The results support that CT-guided celiac plexus block with alcohol is a safe and effective means of pain control in patients with intraabdominal malignancy.