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