منابع مشابه
Painful peripheral states and sympathetic blocks.
In various chronic painful states, the sympathetic nerve supply was blocked either by injecting the sympathetic chain and ganglia with local anaesthesia or by the injection of guanethidine during occlusion of the circulation. There was a striking relation between the presence of hyperpathia and the relief of pain by the blocks. The sympathetic block was unlikely to relieve the pain unless hyper...
متن کاملCervical sympathetic and stellate ganglion blocks.
Sympathetic blocks in the cervical and upper thoracic region are commonly used techniques for a variety of diagnostic, therapeutic and prognostic purposes. Stellate ganglion block is the common nomenclature utilized, however, stellate ganglion is present in only 80% of the population, thus, either lower cervical sympathetic block or upper thoracic sympathetic block is an appropriate term. The c...
متن کاملSympathetic nerve blocks, pragmatic trials, and responder analysis.
S INCE the American Civil War, clinicians and neuroscientists have been mystified by patterns of persistent pain and cutaneous hypersensitivity after injuries to the limbs that are accompanied by remarkable neurovascular, sudomotor, motor, and trophic changes. These syndromes traditionally were labeled as reflex sympathetic dystrophy or causalgia, according to the absence or presence of identif...
متن کاملMecamylamine selectively blocks nicotinic receptors on vasomotor sympathetic C neurons.
Mecamylamine differentially blocked fast nicotinic transmission in two functional subsets of sympathetic neurons within lumbar paravertebral ganglia of the bullfrog. EC50s for inhibition of postsynaptic compound action potentials were 27.3+/-2.5 microM in the secretomotor B system and 5.7+/-0.7 microM in the vasomotor C system. This 5.2:1 selectivity is 2.6 times greater than observed previousl...
متن کاملSympathetic denervation blocks blood pressure elevation in episodic hypoxia.
We have previously described a rat model that responds to repetitive episodic hypoxia (FiO2 nadir 3-5% for 12 seconds every 30 seconds for 7 hr/day for 35 days) with chronic increase in arterial blood pressure. The purpose of the current study was to determine if peripheral sympathetic nervous system denervation blocks this persistent blood pressure elevation. Chemical sympathetic denervation w...
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ژورنال
عنوان ژورنال: Continuing Education in Anaesthesia Critical Care & Pain
سال: 2010
ISSN: 1743-1816
DOI: 10.1093/bjaceaccp/mkq012