- Видео 22
- Просмотров 525 500
幸原伸夫
Добавлен 28 окт 2013
Kimura & Kohara: F64 Small, long-duration MUP showing typical early recruitment
Motor unit potentials (MUPs) recorded from the biceps brachii (BB) during voluntary contraction in a patient with myositis. The tracing shows an early recruitment of many small, long-duration potentials during a slight muscle contraction. An overlap of many potentials makes it difficult to distinguish an individual MUP, which, therefore, must undergo scrutiny during a very minimal muscle contraction.
Просмотров: 26 832
Видео
Kimura & Kohara: F61 A high-amplitude, short-duration, spiky MUP seen in IBM
Просмотров 12 тыс.10 лет назад
Motor unit potentials (MUPs) recorded from the rectus femoris (RF) during minimal muscle contraction in a patient with inclusion body myositis (IBM). The tracing shows a high-amplitude, short-duration MUP probably recorded with the needle tip very close to a single hypertrophic muscle fiber. The presence of other surviving muscle fibers in the vicinity within the recording radius gives rise to ...
Kimura & Kohara: F58 Early recruitment
Просмотров 21 тыс.10 лет назад
Motor unit potentials (MUPs) recorded from the biceps brachii (BB) during voluntary contraction in a patient with mitochondrial encephalomyopathy. An early recruitment during a slight muscle contraction readily leads to MUP overlap. The tracing contains long-duration polyphasic potentials as well as small potentials derived from a single muscle fiber. The polyphasic potentials seen during the w...
Kimura & Kohara: F53 Polyphasic MUP showing satellite potentials
Просмотров 22 тыс.10 лет назад
Motor unit potentials (MUPs) recorded during voluntary contraction from the first dorsal interosseus (FDI) in a chronic polio patient. The tracing shows a stable and polyphasic MUP accompanied by satellite potentials.
Kimura & Kohara: F50 Late recruitment with single motor unit firing rapidly
Просмотров 13 тыс.10 лет назад
Motor unit potentials (MUPs) recorded from the extensor digitorum communis (EDC) during voluntary contraction in a patient with amyotrophic lateral scoliosis (ALS). Only one motor unit discharges
Kimura & Kohara: F48 Relatively stable MUP indicating an intermediate stage of regeneration
Просмотров 3,1 тыс.10 лет назад
Motor unit potentials (MUPs) recorded from the thoracic paraspinal muscle (PSM) during voluntary contraction in a patient with amyotrophic lateral scoliosis (ALS). The biphasic MUP with a relatively stable waveform indicates an intermediate stage of regeneration. In ALS, abnormalities seen in the thoracic PSM helps not only confirm the diagnosis but also evaluate the respiratory muscle function.
Kimura & Kohara: F47 Unstable polyphasic MUP
Просмотров 10 тыс.10 лет назад
Motor unit potentials (MUPs) recorded from the biceps brachii (BB) during voluntary contraction in a patient with amyotrophic lateral scoliosis (ALS). Most polyphasic potentials seen in this tracing show varying waveforms after each firing, indicating instability at the nerve terminal and neuromuscular junction observed in an early stage of regeneration.
Kimura & Kohara: F46 Doublets observed in ALS
Просмотров 15 тыс.10 лет назад
Motor unit potentials (MUPs) recorded from the biceps brachii (BB) during voluntary contraction in a patient with amyotrophic lateral scoliosis (ALS). Doublets, as seen in this recording, make a characteristic sound of double firing. The second of the two discharges has a smaller amplitude as it falls in the relative refractor period of the muscle fibers. A prolonged firing interval seen after ...
Kimura & Kohara: F34 Typical myokymic discharge seen in a demyelinating neuropathy
Просмотров 56 тыс.10 лет назад
Spontaneous activity recorded from the first dorsal interosseous (FDI) in a patient with an idiopathic polyneuropathy. Myokymic discharges, otherwise known as grouped fasciculation potentials, consist of two to eight consecutive spontaneous single motor unit discharges, occurring repetitively. Such findings, commonly observed in post-radiation plexopathy, may also appear in demyelinating neurop...
Kimura & Kohara: F32 Typical fasciculation potentials
Просмотров 78 тыс.10 лет назад
Spontaneous activity recorded from the clinically unaffected biceps brachii (BB) in a 60-year-old woman with a bulbar ALS. Fasciculation potentials, considered crucial in the diagnosis of ALS, abound in this tracing despite the absence of fibrillation potentials or positive sharp waves.
Kimura & Kohara: F31 Fasciculation potentials firing in a cluster
Просмотров 8 тыс.10 лет назад
Spontaneous activity recorded from the biceps brachii (BB) in a patient with amyotrophic lateral scoliosis (ALS). This tracing contains three types of fasciculation potentials each changing the waveform slightly and randomly with successive discharges: high- and low-frequency units and those appearing immediately after each large fasciculation. Although firing occurs irregularly, fasciculation ...
Kimura & Kohara: F27 CRD showing sequential discharges of a group of single muscle fibers
Просмотров 26 тыс.10 лет назад
Spontaneous activity recorded from the extensor digitorum communis (EDC) in a patient with cervical radiculopathy. Complex repetitive discharge (CRD) consists of a series of single muscle fiber discharge which repeats regularly, producing a sound resembling a machine gun (which I know only in movies). Repetitive potentials with such consistency result from ephaptic transmission among different ...
Kimura & Kohara: F22 Myotonic and spontaneous single muscle fiber discharges
Просмотров 4,3 тыс.10 лет назад
Spontaneous activity recorded from the rectus femoris (RF) at rest in a patient with a biopsy proven inclusion body myositis (IBM). The tracing shows typical fibrillation potentials and positive sharp waves, and in the latter half, a run of myotonic discharge.
Kimura & Kohara: F21 positive sharp waves and fibrillation potentials, each firing regularly
Просмотров 10 тыс.10 лет назад
Spontaneous activity recorded from the biceps brachii (BB) in a patient with dermatomyositis. The recording shows many low-amplitude, long- duration positive sharp waves with regularly recurring high-amplitude fibrillation potentials in the background. Despite the overall appearance and sound of irregular firing, detailed analysis reveals that individual single muscle fiber potentials discharge...
Kimura & Kohara: F20 Myotonic discharges mixed with spontaneous single muscle fiber discharges
Просмотров 25 тыс.10 лет назад
Spontaneous activity recorded from the extensor carpi radialis (ECR) 3 months after sustaining a severe traumatic radial nerve palsy. In addition to a large number of fibrillation potentials and positive sharp waves, myotonic discharges appear in the middle of tracing, readily identifiable by the characteristic noise heard.
Kimura & Kohara: F18 Transition of positive sharp waves to fibrillation potentials
Просмотров 12 тыс.10 лет назад
Kimura & Kohara: F18 Transition of positive sharp waves to fibrillation potentials
Kimura & Kohara: F17 Fibrillation potentials and positive sharp waves
Просмотров 63 тыс.10 лет назад
Kimura & Kohara: F17 Fibrillation potentials and positive sharp waves
Kimura & Kohara: F14 Myotonic discharge without clinical myotonia
Просмотров 22 тыс.10 лет назад
Kimura & Kohara: F14 Myotonic discharge without clinical myotonia
Kimura & Kohara: F13 Myotonic discharge without clinical myotonia.
Просмотров 7 тыс.10 лет назад
Kimura & Kohara: F13 Myotonic discharge without clinical myotonia.
Kimura & Kohara: F12 Myotonic discharge recorded in clinically unaffected muscle
Просмотров 55 тыс.10 лет назад
Kimura & Kohara: F12 Myotonic discharge recorded in clinically unaffected muscle
Kimura & Kohara: F9 EP spike without EP noise
Просмотров 11 тыс.10 лет назад
Kimura & Kohara: F9 EP spike without EP noise
Kimura & Kohara: F6 EP noise and EP spike
Просмотров 22 тыс.10 лет назад
Kimura & Kohara: F6 EP noise and EP spike
Is this a reading of the woman's muscle spasms?
The raster indicates rhythmic firing for both waves but with different tempo. So, is it possible for positive sharp wave and fibrillation to occurs simultaneously, I mean similar to superimposed p vs qrs wave in total AV block?
Are The single ones discharges between the myotonic discharges fibrillation ?
They look like normal motor units. Fibs are less regular and sound like a high pitched "stuff being fried."
@@gabrielagregory1017 That's was good!!
i have to watch this to be a physiotherapist at my uni ahahhaha funny thanks teacher !
Thanks
You are good scientists,thank u
نادر
My favorite myotonic discharge 😊
Very nice 😊
Good reinnervation signs polyphasic long duration motor units
It would be nice if you could comment during the test, whether the muscle is in relaxed or activated state.
What is the difference with repetitive complex discharges?
Amyotrophic Lateral SCLEROSIS, no Scoliosis....
bellissimo
nice video, but in the description you wrote: "amyotrophic lateral SCOLIOSIS"