Articles: nerve-block.
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Randomized Controlled Trial Comparative Study Clinical Trial
Comparison of transthecal and subcutaneous single-injection digital block techniques.
A randomized double-blinded study was performed on 20 normal volunteers to evaluate 2 different techniques of single-injection digital anesthesia. Single-injection transthecal digital block technique was used to anesthetize 1 index finger and single-injection subcutaneous technique to block the other index finger. Pain and light touch were evaluated and sensory nerve-conduction studies were performed on both index fingers. ⋯ The method of anesthesia was found to have no effect on the distribution, onset, and duration of anesthesia. Median and radial nerve sensory nerve action potential amplitude reductions following digital anesthesia were also not influenced by the technique of anesthesia. Single-injection subcutaneous block was found to be easier to administer and to produce less pain during and 24 hours after injection than did the single-injection transthecal technique.
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Randomized Controlled Trial Comparative Study Clinical Trial
The addition of opioids to local anaesthetics in brachial plexus block: the comparative effects of morphine, buprenorphine and sufentanil.
We compared the duration of analgesia produced by a mixture of lignocaine and bupivacaine, either alone or combined with morphine (75 micrograms.kg-1), buprenorphine (3 micrograms.kg-1) or sufentanil (0.2 microgram.kg-1) in 80 patients after brachial plexus block for orthopaedic surgery of the upper limb. The characteristics of analgesia were evaluated hourly using a visual analogue scale. ⋯ The median duration (range) of satisfactory analgesia was: 11.5 (8-15) h without an opioid, 21 (9-27) h with morphine, 20 (14-34) h with buprenorphine and 24.5 (11-38) h with sufentanil. We conclude that the addition of an opioid to a local anaesthetic mixture lengthens the duration of analgesia.
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Z Orthop Ihre Grenzgeb · Sep 1997
Randomized Controlled Trial Comparative Study Clinical Trial[Paravertebral lumbar spinal nerve analgesia in orthopedic pain therapy. Standards--guidelines--new techniques--results].
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Elderly cataract patients frequently have comorbid multisystem disease. Local or regional anesthesia is provided to reduce complications of retrobulbar infiltration. Performing painless eye blocks without sedation is probably the safest route.
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Incomplete sensory blockade of the foot after sciatic nerve block in the popliteal fossa may be related to the motor response that was elicited when the block was performed. We investigated the appropriate motor response when a nerve stimulator is used in sciatic nerve block at the popliteal fossa. ⋯ Inversion is the motor response that best predicts complete sensory blockade of the foot. Incomplete blockade of the sciatic nerve may be a result of the size of the sciatic nerve, to separate fascial coverings of the tibial and common peroneal nerves, or to blockade of either the tibial or common peroneal nerves after branching from the sciatic nerve.