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Neurology

Question
3 out of 8
 

Spinal shock is characterized by (select three best options): (PGI Nov 2012)



A Spasticity
B Wasting

C Sensory loss
D Urinary retention

E Areflexia

Ans. C

Sensory loss & D . Urinary retention & E . Areflexia

Acute Spinal Cord Injury

1). Spinal Shock

a. Refers to flaccidity and loss of reflexes seen after spinal cord injury.

b. The 'shock' here is to the 'injured cord' which makes it appear completely functionless although all areas are not necessary destroyed.

c. The duration of spinal shock is variable.

d. The clinical feature are

i. Flaccid Paralysis

ii. Areflexia

iii. Anesthesia

iv. Spinal shock is usually associated with Urinary Retention. The urinary bladder becomes areflexic

during spinal shock and urinary retention develops in most cases.

v. Following the spinal shock phase reflex detrusor activity reappears

2). Neurogenic Shock

a. Produced as a result of loss of sympathetic tone.

b. Interruption of sympathetic vasomotor input after a high cervical spinal cord injury may result in neurogenic shock.

c. Classical picture of Neurogenic shock is Hypotension without tachycardia or cutaneous vasoconstriction i.e. Hypotension with Bradycardia with Skin hyperaemia and warmth

d. The mechanism of neurogenic shock after spinal cord injury is believed to be disruption of sympathetic flow with preserved and unopposed vagal (parasympathetic) tone

Neurology Flashcard List

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