Most common cause of death in case of acute poliomyelitis is- (AIIMS Nov 2013)
|A||Intercostal muscles paralysis|
o Death is usually due to complications arising from respiratory dysfunction.
• Paralytic Polio
o In less than 1% of infections.
o Paralysis is characterized as :
3. Proximal muscles>distal muscles
4. Non progressive
5. No sensory involvement
6. No autonomic disturbance
7. Lower motor neuron type
o Most common muscle affected; Quadilceps
o Most common muscle undergoes complete paralysis -+ Tibialis anterior
o Most common muscle affected in hand + Opponens pollicis.
o M.C. cause of death -s Respiratory paralysis
Following signs can be elicited:
1. Tripod sign - Child is asked to sit up unassisted. He assumes tripod posture.
2. Kiss the knee test - The child cannot kiss his knees due to spine stiffness.
3. Head drop sign - Hand is placed under the patients shoulder and the trunk is raised. The head lags behind simply.