Most common cause of death in case of acute poliomyelitis is –

Death is usually due to complications arising from respiratory dysfunction. Paralytic polio In less than 1% of infections. Paralysis is characterized as : Descending  Asymmetrical  Proximal muscles > distal muscles Non progressive No sensory involvement  No autonomic disturbance Lower motor neuron type Most common muscle affected -4 Quadriceps Most common muscle undergoes complete paralysis -4 Tibialis anterior Most common muscle affected in hand —> Opponens pollicis. M.C. cause of death ---> Respiratory paralysis Following signs can be elicited : Tripod sign   —>      Child is asked to sit up unassisted. He assumes tripod posture. Kiss the knee Test           —>         The child cannot kiss his knees due to spine stiffness. Head drop sign    —>        Hand is placed under the patients shoulder and the trunk is raised. The head lags behind simply.