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Neuroanatomy Questions

(1) The notes on a patient state that he has a positive Queckenstedt's sign. Explain Queckenstedts' sign.

This what I have could you please check and make sure I am not missing anything?

Also known as:
Queckenstedt's method
Queckenstedt's sign
Queckenstedt's symptom
Queckenstedt's test
Queckenstedt-Stookey test
Stookey's symptom

Associated persons:
Hans Heinrich Georg Queckenstedt
Byron Polk Stookey

Description:
Test to determine whether or not the flow of cerebrospinal fluid is blocked in the spinal canal. The test is performed by putting bilateral pressure on the jugular veins - vv. jugulares internae - during the course of a lumbar puncture. Normally there is a sharp rise increase in the pressure of the spinal fluid in the lumbar region within 10 to 12 seconds, and then a sharp fall when the pressure is released.
If there is no rise in the pressure of liquor cerebrospinalis, it is a sign of blocking of the subarachnoid channels.

Queckenstedt's phenomenon was described by the British surgeon and anatomist John Hilton (1804-1878) in 1863 on the basis of investigation of a corpse.

(2) 75 y/o woman collapsed in the street and was admitted to the ER in a coma. Twenty four hours later she recovered consciousness and was found to have paralysis on the left side of the body, mainly involving the lower limb. There was some sensory on the left side of the body. She was able to swallow normally and did not appear to have difficulty with her speech.

What blood vessel was probably involved?

Would it be the right anterior cerebral artery?

Solution Preview

Neurology - Queckenstedt's sign & a blood vessel
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First, the previous question: hyper-reflexia of the knee would not be caused by damage to the extrapyramidal tract. Damage to the extrapyramidal tract would affect muscle tone, but not reflexes.

The notes on a patient state that he has a positive Queckenstedt's sign.
Explain Queckenstedts' sign.

This what I have could you please check and make sure I am not missing anything?

Also known as:
Queckenstedt's method
Queckenstedt's sign
Queckenstedt's symptom
Queckenstedt's test
Queckenstedt-Stookey test
Stookey's symptom

Associated persons:
Hans Heinrich Georg Queckenstedt
Byron Polk Stookey

Description:
Test to determine whether or not the flow ...

Solution Summary

This solution includes answers to two neuroanatomy questions. The first answer lists the steps of Queckenstedt's maneuver and explains why it is done. The second answer includes symptoms that would be expected with occulsion of different cerebral arteries.

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