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Hoffmann's reflex (Hoffmann's sign, sometimes simply Hoffmann's, or finger flexor reflex) [1] is a neurological examination finding elicited by a reflex test which can help verify the presence or absence of issues arising from the corticospinal tract. It is named after neurologist Johann Hoffmann. [2]
It is generally assumed that this is due to a marked reduction in the excitability of the spinal cord in zero gravity. Once back on Earth, a marked recovery occurs during the first day, but it can take up to 10 days to return to normal. The H-reflex was the first medical experiment completed on the International Space Station. [3] [4]
Seen during right ventriculography in the setting of a patent ductus arteriosus, the Goetz sign refers to the negative contrast effect seen in the pulmonary artery from non-contrast enhanced blood shunting left to right from the aorta: Gonda's sign: Viktor Gonda, Ukrainian Neuropsychiatrist, (1889–1959) neurology: pyramidal tract lesions
Johann Hoffmann (1857-1919) Johann Hoffmann (28 March 1857 – 1 November 1919) was a German neurologist born in Hahnheim. He is remembered for describing Hoffmann's reflex and Werdnig–Hoffmann disease (now spinal muscular atrophy type 1). He is also known for the adult-onset hypothyroid myopathy, Hoffmann syndrome. [1]
Tinel's sign (also Hoffmann-Tinel sign) is a way to detect irritated nerves. It is performed by lightly tapping over the nerve to elicit a sensation of tingling or "pins and needles" in the distribution of the nerve. [1] [2] Percussion is usually performed moving distal to proximal. [2] It is named after Jules Tinel. [3] [4] [5]
Kind of like the one that just went to Baltimore, Tyler O’Neill. The Red Sox are now a little too left-handed, and stuck with their Masataka Yoshida commitment for three more seasons.
7 top arms available. Now that we’ve established which teams could still be in the market to add a starter via free agency or trade, let’s take a look at what pitchers remain.
Lhermitte's sign may also appear during or following high-dose chemotherapy. [7] [8] Irradiation of the cervical spine may also evoke it as an early delayed radiation injury, which occurs within 4 months of radiation therapy. [citation needed] Delayed onset Lhermitte's sign has been reported following head and/or neck trauma.