Page 1 of 1: anaesthesia: spinal anaesthesia and cranial nerves.

drsmita_s · Credits: 18649 My Scrapbook

there r two questions:
1 commonest cranial nerve involved in spinal Anaesthesia :

a)2nd
b) 4th
c) 6th
d)8th
e) 10th

the answer given is 6th nerve.

2 cranial nerve not involved in spinal Anaesthesia :

a) 1st and 10th
b) 3rd and 6th
c) 2nd and 4th
d) 7th nd 8th

the answer given is 1st and 10th.

since i cudn't find any reference, i just wanted to confirm from u friends, whether these answers r correct?

legaldevil · Credits: 2816 My Scrapbook

Loss of CSF through the hole of a puncture seems to be the cause of the low CSF pressure with PDPH due to loss of encephalon's hydraulic suspension. The same mechanism of intracranial hypotension is probably responsible for cranial nerves paresis. The VIth cranial nerves pair is more frequently affected than any other cranial nerve because its long trajectory along the cranial base where it can be easily submitted to traction provoking its functional alteration4, 6 . The use of smaller puncture needles of a lesser gauge was associated with a decrease of such complications 7 . Although others treatments, such as epidural blood patch, have been tried, conservative treatment with IV and oral hydration, vitamin B and ocular closure is still used due to the failure of other treatments4. Because of the good prognosis described in the literature (2/3 are solved within a week and the majority before a six months time), it is important to reassure the patient who thinks he is having serious problems that might restrain his life considerably.

drsmita_s · Credits: 18649 My Scrapbook

THANX legal devil,
with the explaination that u have given , it is clear that the answer to the first question is indeed 6th nerve.

thakurda · Credits: 1233 My Scrapbook My Reading List 42 Books

answers to both questions re cranial nerves and spinal Anaesthesia are correct.

Ref: Lee's Synopsis of Anaesthesia , (1978), ELBS

drsmita_s · Credits: 18649 My Scrapbook

thank you , for confirming.

bujji · Credits: 613 My Scrapbook

WHY DO V NEED OCULAR CLOSURE SIR?

thakurda · Credits: 1233 My Scrapbook My Reading List 42 Books

i do not understand the question!

ocular closure is needed to prevent drying up of eyes, prevention of injuries etc

johnserif · Credits: 881 My Scrapbook

Vagus doesn't involve so rarely infact When I do spinal anesthesia
Thanx

nabrina · Credits: 3146 My Scrapbook

drsmita_s · Credits: 18649 My Scrapbook

thanks, i trust ajay yadav.

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