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38 Possible Causes for Slow Nerve Conduction Velocities, Thenar Muscle Atrophy

  • Carpal Tunnel Syndrome

    Median nerve conduction velocities are slowed along the wrists and hands of people with CTS.[handandwristinstitute.com] At the six-month follow-up examination, the patient experienced relief from numbness and improvement in thenar muscle atrophy was noted.[ncbi.nlm.nih.gov] muscle atrophy may occur Applies To Median nerve entrapment Partial thenar atrophy ICD-9-CM Volume 2 Index entries containing back-references to 354.0 :[icd9data.com]

  • Brachial Plexus Neuropathy

    Abstract Electromyographic data were analyzed in a retrospective study of 16 patients with idiopathic brachial plexus neuropathy (BPN) and 15 patients with secondary BPN. In both groups, abnormalities on sensory and musculocutaneous motor conduction studies and lack of paraspinal fibrillation potentials on needle[…][ncbi.nlm.nih.gov]

  • Peripheral Neuropathy

    Nerve conduction studies can distinguish demyelinative neuropathy (slowing of conduction velocity or conduction block) from axonal neuropathy (low-action potential amplitudes[neuropathology-web.org] […] and weakness of the thenar muscle group.[clevelandclinicmeded.com] Nerve conduction studies assess the shape, amplitude, latency, and conduction velocity of an electrical signal conducted over the tested nerve.[aafp.org]

  • Median Neuropathy

    muscle atrophy may occur.[fpnotebook.com] Median motor distal latencies were prolonged in 38%, and median sensory nerve conduction velocities were slowed in 40%.[ncbi.nlm.nih.gov] 354.0 ICD10 G56.0, G56.00 SnomedCT 155073007, 193126005, 57406009, 246611002 English Carpal Tunnel Syndromes, Syndromes, Carpal Tunnel, Syndrome, Carpal Tunnel, AMYOTROPHY, THENAR[fpnotebook.com]

  • Cervical Spondylosis

    […] groups, especially in the extremities poor or pathologic tandem gait atrophy of the hand’s thenar prominence (the fleshy fat pad just superior to the thumb on the ventral[americannursetoday.com] Nerve conduction velocity (NCV): NCV shows the speed at which electrical signals move through a nerve.[dovemed.com] […] the following: clonus or spasticity of the lower extremities sensory changes (light touch, pinprick sensation, or temperature dysfunction) generalized weakness throughout muscle[americannursetoday.com]

  • Ulnar Nerve Entrapment

    An electromyographic (EMG) investigation revealed slowing of the motor conduction velocity in the ulnar nerve across the elbow.[ncbi.nlm.nih.gov] Guyon's Canal Syndrome symptoms include: Muscular atrophy - Primarily the hypothenar muscles and interossei with muscle sparing of the thenar group: weakened finger abduction[physio-pedia.com] […] of muscles, mainly the hypothenar and interossei with sparing of the thenar muscles Weak finger abduction and adduction movement (interossei) Weak thumb adduction movement[symptoma.com]

  • Distal Hereditary Motor Neuropathy Type 5

    Charcot-Marie-Tooth neuropathy type 1 (CMT1) is a demyelinating peripheral neuropathy characterized by distal muscle weakness and atrophy, sensory loss, and slow nerve conduction[bcbst.com] Electrophysiology: nerve conduction studies show: Low conduction velocities ( Normal or only mildly slowed conduction velocities ( 38 m/s) and reduced action potential amplitudes[patient.info] velocity.[bcbst.com]

  • Charcot Marie Tooth Disease

    HMSN1 is the most common form of hereditary neuropathy, characterized by severely and uniformly slowed nerve conduction velocities and primary hypertrophic myelin pathology[medlink.com] This is followed by progressive weakness and atrophy of thenar and first dorsal interosseus muscles; hypothenar eminence is spared until later in the course of illness.[ncbi.nlm.nih.gov] The EMG and NCV were consistent with demyelination and slow nerve conduction velocities.[podiatrytoday.com]

  • Paraneoplastic Polyneuropathy

    Myelin loss results in slowed conduction velocities, prolonged distal latencies, conduction block, temporal dispersion and prolonged minimum F-wave latencies.[aafp.org] […] and weakness of the thenar muscle group.[clevelandclinicmeded.com] The differential diagnosis of different types of peripheral neuropathy can be divided using electrophysiologic criteria. 7 Axon loss results in loss of amplitude of nerve[aafp.org]

  • Serum Neuropathy

    Nerve conduction studies assess the shape, amplitude, latency, and conduction velocity of an electrical signal conducted over the tested nerve.[aafp.org] […] and weakness of the thenar muscle group.[clevelandclinicmeded.com] Axonal loss leads to lower amplitudes, and demyelination causes prolonged latency and slow conduction velocity.[aafp.org]

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