Flaccid Paralysis

Flaccid paralysis is a condition characterized by extreme weakness of muscles and loss of muscle tone.

Causes of Flaccid Paralysis

A common cause of flaccid paralysis is anterior spinal artery syndrome, in which the anterior spinal artery is blocked. Blockage can be caused by spinal cord trauma, cancer, arterial disease, or thrombosis. Other causes of flaccid paralysis include:

  • Central pontine myelinolysis— The protective layer around the brainstem nerve cells is destroyed, preventing the transmittal of nerve signals
  • Hyperkalemia— Caused by an excess of potassium in the body
  • Hypokalemic periodic paralysis— An inherited muscle condition characterized by severe episodes of paralysis and muscle weakness which can last for hours or days
  • Japanese encephalitis— A form of encephalitis transmitted by mosquitoes

Treatment for Flaccid Paralysis

The doctor determines the location of activity using evaluation and special testing. Once the presence of muscle activity is determined, a therapist can help the patient regain some strength and muscle tone by reinforcing correct movement patterns.