Articles: nerve-block.
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Regional anesthesia · Jul 1993
Randomized Controlled Trial Clinical TrialPulmonary function changes during interscalene brachial plexus block: effects of decreasing local anesthetic injection volume.
During interscalene block, ipsilateral hemidiaphragmatic paresis occurred in all patients who received > 34 ml of local anesthetic in the authors' previous studies. This study was done to determine whether diaphragmatic function could be spared by a smaller local anesthetic volume. ⋯ Reducing the volume of local anesthetic to 20 ml did not prevent the 100% incidence of diaphragmatic paresis or significantly lessen the compromise in pulmonary function that had been reported to occur during interscalene brachial plexus anesthesia.
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Randomized Controlled Trial Comparative Study Clinical Trial
How many interscalenic blocks are there? A comparison between the lateral and posterior approach.
This study compares the areas of analgesia obtained with the lateral and posterior approaches to the interscalene space after injection of equal volumes of anaesthetic solution (40 ml of a mixture of 0.5% bupivacaine with adrenaline 1:200,000 and 2% lignocaine in equal parts). There was a significant difference in the distribution of the areas of analgesia between the two approaches. With the posterior approach, the region supplied by the radial, medial and ulnar nerves and the post-axial border of the upper limb were more frequently involved, whilst with the lateral approach the area of analgesia was usually confined to the regions supplied by the most caudal roots of the cervical plexus and the upper trunk of the brachial plexus (pre-axial border of the upper limb). On these grounds it appears that two different types of interscalene block are possible.
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J Vasc Interv Radiol · Jul 1993
Randomized Controlled Trial Clinical TrialRandomized double-blind clinical trial of celiac plexus block for percutaneous biliary drainage.
This study was undertaken to determine the efficacy of celiac plexus block (CPB) as a method of providing analgesia for percutaneous biliary drainage (PBD). ⋯ This study indicates that CPB is not an effective means of providing additional visceral pain relief over and above that which can be accomplished with self-administered intravenous medication for patients who undergo PBD.
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Regional anesthesia · Jul 1993
Case Reports Comparative StudyRectus block for postoperative pain relief.