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Nerve block or regional nerve blockade is any deliberate interruption of signals traveling along a nerve, often for the purpose of pain relief. Local anesthetic nerve block (sometimes referred to as simply "nerve block") is a short-term block, usually lasting hours or days, involving the injection of an anesthetic, a corticosteroid, and other agents onto or near a nerve.
When the nerve fibers degenerate, it causes an interruption in the transmission of nerve signals. In the medical field, this is most commonly and advantageously used to alleviate pain in cancer patients. [1] The different types of neurolysis include celiac plexus neurolysis, endoscopic ultrasound guided neurolysis, and lumbar sympathetic ...
For supraclavicular block, nerve stimulation with a minimal threshold of 0.9 mA can offer a dependable block. [11] Although ultrasound-guided supraclavicular block has been shown to be a safe alternative to the peripheral nerve stimulator guided technique, there is little evidence to support that ultrasound guidance provides a better block, or ...
Superior hypogastric plexus block/neurolysis: A procedure performed to manage refractory abdominal/pelvis pain by modulating the superior hypogastric plexus, which is a network of nerve fibers located in the retroperitoneum that modulate pain from the bladder, vulva, vagina, uterus, urethra, penis, perineum, prostate, testes, rectum, and colon.
Pudendal anesthesia (pudendal nerve block, pudendal block or saddle block) is a form of local anesthesia. Pudendal anesthesia can be used to diagnose as well as treat illnesses. [ 1 ] A nerve block is the use of local anesthetic (e.g lidocaine ) to inhibit the sensation of pain caused by one or multiple nerves. [ 2 ]
Illustration of imaging from a CT-guided nerve block. The needle tip has been placed at the top of the pudendal canal to block the pudendal nerve. Diagnostic nerve blocks are very effective for identifying sensory entrapment points. Their strength is that they can directly measure whether a given nerve is contributing pain, or not.
Medical ultrasound includes diagnostic techniques (mainly imaging techniques) using ultrasound, as well as therapeutic applications of ultrasound. In diagnosis, it is used to create an image of internal body structures such as tendons, muscles, joints, blood vessels, and internal organs, to measure some characteristics (e.g., distances and velocities) or to generate an informative audible sound.
Normally the sciatic nerve can stretch, glide, and accommodate moderate compression associated with normal hip joint and knee movements, but it may be impeded by various pathologies. Diminished or absent sciatic nerve mobility is believed to be the precipitating cause of sciatic neuropathy in deep gluteal syndrome. [6]