4.1 Flaccid Dysarthria Flashcards
What is the hallmark of Flaccid Dysarthria?
Weakness
What causes Flaccid Dysarthria?
2
Injury or malfunction of one or more of the cranial or spinal nerves
Lesions to the LMNs
Can Flaccid Dysarthria involve only a single muscle group (e.g., the tongue)?
Yes
Can Flaccid Dysarthria involve only a single speech subsystem (e.g., phonatory, articulatory)?
Yes
Can Flaccid Dysarthria involve several subsystems?
Yes
Can Flaccid Dysarthria involve several muscle groups, in a variety of combinations?
Yes
What Subtypes of Flaccid Dysarthria can be recognized?
4
Unilateral damage to a specific cranial or spinal nerve
Unilateral damage to a combination of cranial or spinal nerves
Bilateral damage to a specific cranial or spinal nerve
Bilateral damage to a combination of cranial or spinal nerves.
What will a pt.’s voice sound like that has Flaccid Dysarthria affecting the Vocal Fold Unilaterally?
Breathy
What will a pt.’s voice sound like that has Flaccid Dysarthria affecting the Vocal Fold Bilaterally?
(2)
Extremely breathy
Aphonia
What will a pt.’s articulation sound like that has Flaccid Dysarthria affecting the Facial Nerve Unilaterally?
(3)
Imprecise
Slurred
No affect
What will a pt.’s articulation sound like that has Flaccid Dysarthria affecting the Facial Nerve Bilaterally?
(2)
Extremely imprecise
Unintelligible
What are 12 etiologies of Flaccid Dysarthria?
Degenerative (40%)
Traumatic (22%)
Surgical (19%)
Nonsurgical (3%)
Muscle Disease (9%)
Vascular (9%)
Myasthenia Gravis (4%)
Infectious (4%)
Tumor (3%)
Demyelinating (2%)
Anatomic Malformation (1%)
Other (5%)
What is a Degenerative cause of Flaccid Dysarthria?
ALS
What are 3 Surgical causes of Flaccid Dysarthria?
Carotid endarterectomy
Thyroidectomy
Cardiac/chest surgery
What are 3 Nonsurgical causes of Flaccid Dysarthria?
TBI
Skull fracture
Neck trauma
What are 2 Muscle Disease causes of Flaccid Dysarthria?
Muscular dystrophy
Polymyositis
What are 3 Vascular causes of Flaccid Dysarthria?
Brainstem stroke
Anoxic encephalopathy
Aortic aneurysm
What is a Infectious cause of Flaccid Dysarthria?
Polio
What is a Demyelinating cause of Flaccid Dysarthria?
Guillain-Barre syndrome
What are 2 Other causes of Flaccid Dysarthria?
Radiation therapy
Drug toxicity
What are 7 Distinguishing Signs of a disorder of the LMN?
Weakness
Isolated muscle group(s) are affected
Reflexive, automatic, and voluntary movements are all affected (FCP)
Diminished movement, both voluntary and reflexive
Atrophy
Fasciculations
Fibrillations
What are 2 terms that denote weakness?
Hypotonia
Atonia
What qualities of the muscle creates the weakness seen in Flaccid Dysarthria?
(3)
Floppiness of the muscle
Reduced resistance to passive movement
Limited ability of the muscle to contract