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関連する概念動画

Alterations in Muscle Tone lll01:11

Alterations in Muscle Tone lll

29
Rigidity and myotonia are distinct abnormalities of muscle tone that affect resistance and relaxation during movement. Although both involve altered muscle contraction, they arise from different neurological and muscular mechanisms.CharacteristicsRigidity is characterized by uniform resistance to passive movement across the entire range, independent of speed, affecting flexors and extensors equally. It may appear as lead-pipe rigidity (smooth, constant resistance) or cogwheel rigidity...
29
Alterations in Muscle Tone ll01:12

Alterations in Muscle Tone ll

27
Alterations in muscle tone are common manifestations of neurological disorders and reflect dysfunction within different nervous system regions. Spasticity, paratonia, and dystonia represent distinct forms of hypertonia, each with unique mechanisms, clinical features, and diagnostic importance.CharacteristicsSpasticity happens from upper motor neuron lesions and is characterized by velocity-dependent resistance to passive movement. Clinical features include:Exaggerated deep tendon reflexesClonus...
27
Seizures ll: Types01:19

Seizures ll: Types

36
Seizures are sudden bursts of abnormal electrical discharge in the brain that interfere with normal function. They are commonly divided into three groups: focal seizures, generalized seizures, and other types that do not fit neatly into either category.Focal SeizuresFocal seizures begin in a single brain region. When awareness is preserved, they are called focal aware seizures and may cause sensations such as tingling, unusual smells, or flashing lights. When awareness is impaired, they are...
36
Skeletal Muscle Relaxants: Adverse Effects01:21

Skeletal Muscle Relaxants: Adverse Effects

1.2K
Skeletal muscle relaxants are widely used for muscle paralysis and relieving pain following any muscle injury or stiffness. However, depending on the drug type, they can have adverse effects that range from mild to severe. Usually, nondepolarizing neuromuscular blockers have minimal side effects. For example, drugs like d-tubocurarine, cisatracurium, and rocuronium cause hypotension, whereas drugs like baclofen, when stopped abruptly, can lead to the recurrence of spastic conditions.
Unlike...
1.2K
Muscle Stimulation Frequency01:22

Muscle Stimulation Frequency

4.7K
The contraction strength of muscles is regulated by motor neurons, which modulate the frequency of action potentials dispatched to the motor units based on the body's requirements. This process of varying the muscle stimulation frequency allows muscles to contract with a force that is precisely tailored to the needs of the moment, whether lifting a feather or a heavy box.
Wave summation
At low firing rates, motor neurons induce individual twitch contractions in muscle fibers. These twitches...
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Seizures: Classification01:13

Seizures: Classification

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Epilepsy is primarily characterized by unpredictable seizures, either provoked by an identifiable factor, such as injury or illness, or unprovoked, occurring spontaneously without apparent cause.
Seizures are typically classified into two main categories: focal and generalized seizures.
Focal Seizures
Focal seizures originate from specific regions of the brain. These seizures are further sub-classified into two types:
2.5K

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震えの震え 震えの震え

W Jeffrey Elias1, Binit B Shah2

  • 1Department of Neurological Surgery, University of Virginia, Charlottesville.

JAMA
|March 6, 2014
PubMed
まとめ
この要約は機械生成です。

震えは,障害を引き起こすことができる一般的な運動障害です. エッセンシャル・トレモールやパーキンソン病のトレモールなどの病理的なタイプから生理学的トレモールを区別することは,効果的な治療の鍵です.

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Method to Measure Tone of Axial and Proximal Muscle
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科学分野:

  • 神経学 神経学とは
  • 運動障害 運動障害

背景:

  • リズム的な非自発的な動きである震えは,米国で最も一般的な運動障害です.
  • 病理的なタイプの生理学的震えを区別することは,患者の管理に不可欠です.
  • 震えは生命を脅かさないが,日常の活動や仕事に影響を及ぼす.

研究 の 目的:

  • 共通の震の評価と証拠に基づいた管理をレビューする.
  • 早期の専門家の紹介のために,よりまれな震えを認識することの重要性を強調する.
  • 医学的に耐震性震に対する先進的な介入について議論する.

主な方法:

  • 震の評価と管理に関する現在の文献のレビュー.
  • エッセンシャル・トレモールやパーキンソン病のトレモールなどの一般的な震えを区別することに焦点を当ててください.
  • 診断基準と治療戦略の議論.

主要な成果:

  • エッセンシャル・トレモアとパーキンソン病のトレモアは,早期に認識され,特定の治療が可能になります.
  • 薬剤誘発または病変誘発の震えは,異なる管理と早期の専門家の相談を必要とする場合があります.
  • 深い脳刺激や損傷を含む外科的選択肢は,重症で治療に抵抗する震に存在する.

結論:

  • トレモーの正確な診断は,適切な治療と適時な治療に不可欠です.
  • 医療療法から外科的介入に至るまで,様々な治療法が震管理に利用できます.
  • 早期の認識と管理は,震障害を持つ個人の結果を改善することができます.