![Split Split](https://i.ytimg.com/vi/vnMhJh91bcc/hqdefault.jpg)
![Split Split](https://i.ytimg.com/vi/bBJ-wbZjNIc/maxresdefault.jpg)
Pyramid, Eye in Pyramid, Diamond, Triangle, Eye in Triangle, Sign for the Grade of Fire. Custom Metal Name Sign - Split Letter Name Sign - Personalized Last Name Sign - Door Hanger - Outdoor Metal Sign - Wedding Gift - Monogram 4.8 out of 5 stars 524 $39.99 $ 39. The split-hand sign, one of the early physical symptoms of ALS, refers to a loss of the pincer grasp due to weakness and wasting of two hand muscles — the abductor pollicis brevis (APB) and the first dorsal interosseous (FDI) muscles — located on the side of the thumb.
Split hand syndrome | |
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Specialty | Neurological |
In medicine, split hand syndrome is a neurologicalsyndrome in which the handmuscles on the side of the thumb (lateral, thenar eminence) appear wasted, whereas the muscles on the side of the little finger (medial, hypothenar eminence) are spared. Anatomically, the abductor pollicis brevis and first dorsal interosseous muscle are more wasted than the abductor digiti minimi.[1]
Video roulette vegas. How to donate fake money on twitch. If lesions affecting the branches of the ulnar nerve that run to the wasted muscles are excluded, the lesion is almost sure to be located in the anterior horn of the spinal cord at the C8-T1 level.[2] It has been proposed as a relatively specific sign for amyotrophic lateral sclerosis (ALS or Lou Gehrig's disease).[1][3] It can also occur in other disorders affecting the anterior horn, such as spinal muscular atrophy, Charcot-Marie-Tooth disease, poliomyelitis and progressive muscular atrophy.[2][4] A slow onset and a lack of pain or sensorial symptoms are arguments against a lesion of the spinal root or plexus brachialis.[4] To an extent, these features can also be seen in normal aging (although technically, the apparent muscle wasting is sarcopenia rather than atrophy).[5]
Als Hand Muscle Wasting
The term split hand syndrome was first coined in 1994 by a researcher from the Cleveland Clinic called Asa J. Wilbourn.[6][7]
Footnotes[edit]
Split Hand Sign Muscles
- ^ abKuwabara S, Sonoo M, Komori T, et al. (April 2008). 'Dissociated small hand muscle atrophy in amyotrophic lateral sclerosis: frequency, extent, and specificity'. Muscle Nerve. 37 (4): 426–30. doi:10.1002/mus.20949. PMID18236469. S2CID18500530.
- ^ abSplit hand syndrome. Stedman's Medical Dictionary. Retrieved August 13, 2008.
- ^Kuwabara S, Mizobuchi K, Ogawara K, Hattori T (July 1999). 'Dissociated small hand muscle involvement in amyotrophic lateral sclerosis detected by motor unit number estimates'. Muscle Nerve. 22 (7): 870–3. doi:10.1002/(SICI)1097-4598(199907)22:7<870::AID-MUS9>3.0.CO;2-O. PMID10398204. Archived from the original on 2013-01-05.
- ^ abSchelhaas HJ, van de Warrenburg BP, Kremer HP, Zwarts MJ (December 2003). 'The 'split hand' phenomenon: evidence of a spinal origin'. Neurology. 61 (11): 1619–20. doi:10.1212/01.wnl.0000096009.50213.6c. PMID14663056. S2CID39361741.
- ^Voermans NC, Schelhaas HJ, Munneke M, Zwarts MJ (December 2006). 'Dissociated small hand muscle atrophy in aging: the 'senile hand' is a split hand'. Eur J Neurol. 13 (12): 1381–4. doi:10.1111/j.1468-1331.2006.01477.x. PMID17116225. S2CID26868415.
- ^Wilbourn AJ, Sweeney PJ (1994). 'Dissociated wasting of medial and lateral hand muscles with motor neuron disease'. Can J Neurol Sci. 21 (S2): S9.
- ^Wilbourn AJ (January 2000). 'The 'split hand syndrome''. Muscle Nerve. 23 (1): 138. doi:10.1002/(SICI)1097-4598(200001)23:1<138::AID-MUS22>3.0.CO;2-7. PMID10590421. Archived from the original on 2013-01-05.
Split Hand Sign Cmt X
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