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15 Cards in this Set

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what is CV4?
mechanical compression of the 4th ventricle of the brain
as you bring the occiput into extension for cv4, what happens to the lateral angles? what affect does that have on the tentorium?
lateral angles approximate slightly putting tension on the tentorium.
what happens to the cerebellum as the occiput is place into extension to do CV4? what about the brachium pontis?
cerebellum is rolled downward on the roof of the pons and medulla; brachium pontis lifts the pons and medulla up, compressing the 4th ventricle
what are the effects of CV4?
is a way to affect the flow of the CSF, the autonomic nervous system and the structures at the floor of the 4th ventricle
what can the CV4 technique alter? what can it directly measure?
sleep latency and directly measure muscle sympathetic nerve activity.
when is CV4 contraindicated?
Acute cerebral hemorrhage
Acute head injuries
Known or suspected cranial bone fractures
Active seizure
Increased intracranial pressure
where do you slip your fingers for the CV4 technique?
medial to the occipital mastoid sutures so that the lateral angles rest on the thenar eminences providing a comfortable cushion
what suture must you NOT CROSS or apply pressure to for the CV4 technique? why?
occipitomastoid suture because you will lock up the occiput and temporal bone and cause them to have headaches.
what is the first step of the CV4 procedure?
relax C-spine musculature w/ a suboccipital inhibition
what do you do to the lateral angle of the occiput in the CV4 procedure? why?
disengage the lateral angle posterior and medially towards the inion to deepen the saucer of the occipital squama
in CV4 procedure _____ cranial extension, _____ cranial flexion.
encourage; resist
how long will the release take for CV4 procedure?
5, 6, 7 minutes etc
what do you do after the release of the CV4?
reengage the lateral angles and slowly remove your hands, returning the head to the table
what do you do to check the OA after CV4 procedure?
suboccipital inhibition
what happens to the lateral angles of the occiput during flexion?
they will separate and spread laterally