Articles: nerve-block.
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This prospective study was designed to determine the prevalence of lumbar facet joint pain in a consecutive series of patients with chronic low back pain treated at an interventional, multidisciplinary private pain management practice utilizing double diagnostic blocks, to determine the prevalence of false positive rate of uncontrolled facet joint blocks, and to determine the relationship of clinical features of responders and non-responders to double diagnostic blocks. One hundred and twenty patients with low back pain with or without lower extremity pain were selected. The procedure consisted of diagnostic blocks using lidocaine and bupivacaine on separate occasions, usually two weeks apart. ⋯ However, history of previous surgery showed a negative correlation as only 29% of the patients after previous surgery were positive in contrast to 51% of the nonsurgical population. The results of this study echo previous concerns of reliability of uncontrolled single blocks, history, and clinical features. This study demonstrated that the facet joint is a source of pain in 45% of the patients suffering with chronic low back pain in an interventional pain management setting in a private practice.
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Chronic neck pain, headache, and arm pain are some of the most common patient complaints confronting today's health care provider. Chronic neck pain is reported to be a frequency symptom in 34% of the general population with 14% of the general population reporting neck pain that lasted for more than 6 months. The magnitude of the problem is demonstrated by increase of cervical spine surgery by 45% and cervical fusion by 70% over a ten year period from 1979 through 1988. ⋯ Neural blockade in the cervical spine, though introduced in 1912, lagged behind that of the lumbar spine. At the present time, neural blockade is an extremely popular tool for diagnostic purposes in evaluation of neck pain, even though it has not developed a definitive role in the management of chronic neck pain and associated syndromes. The object of this review is to focus on various aspects of neural blockade in the management of chronic neck pain and associated syndromes including its rationale, clinical effectiveness, indications, and complications.
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To reassess reference values for the components of the electrically induced blink reflex, document reference values for facial motor nerve conduction velocity, and demonstrate usefulness of the blink reflex as a diagnostic tool in peripheral facial and trigeminal nerve dysfunction in horses. ⋯ Reference values for the components of the blink reflex and facial motor nerve conduction velocity will allow application of these tests to assist in the diagnosis of equine neurologic disorders involving the trigeminal and facial nerves, the brainstem, and the cranial end of the cervical segment of the spinal cord. This study reveals the usefulness of the blink reflex test in the diagnosis of peripheral trigeminal and facial nerve dysfunction in horses.
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Randomized Controlled Trial Multicenter Study Comparative Study Clinical Trial
A multicentre trial of ropivacaine 7.5 mg x ml(-1) vs bupivacaine 5 mg x ml(-1) for supra clavicular brachial plexus anesthesia.
To compare the efficacy of ropivacaine 7.5 mg x ml(-1) with bupivacaine 5.0 mg x ml(-1) for subclavian perivascular brachial plexus block. ⋯ Thirty ml ropivacaine 7.5 mg x ml(-1) (225 mg) produced effective and well tolerated brachial plexus block of long duration by the subclavian perivascular route. In this study, the results were similar to those of 30 ml bupivacaine 5.0 mg x ml(-1).