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3 NERVOUS SYSTEM > Hydrocephalus > Flashcards

Hydrocephalus Flashcards

1
Q

IOC FOR HYDROCEPHALUS

A

MRI Brain

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2
Q

MacEwan’s Sign

A

Crack Pot resonance on percussion of skull
⭐ Hydrocephalus

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3
Q

Sunset sign seen in

A

HYDROCEPHALUS
Upward Gaze Palsy
Downward rotation of eyeball DUE TO: pressure on tectum

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4
Q

Dandy Walker SYNDROME
🧠⚡D4NDY Walker Syndrome ⚡

A
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5
Q

Evan’s ratio used in
🧠⚡LV-H Works ⚡
NORMAL value : 33%

A

Indication of surgery in HYDROCEPHALUS

ER= Lateral Ventricular Width/Hemispheric Width

ER>33% ➡️ SURGICAL INTERVENTION needed

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6
Q

VP SHUNT NAME

A

Chhabra shunt
Upadhyay shunt

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7
Q

Screening test for Hydrocephalus

A

NEUROSONOGRAM

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8
Q

Communicating Hydrocephalus
Non-Obstructive Hydrocephalus
Causes CHAMp

A

CHoroidal Papilloma
Achondroplasia
Meningeal malignancy
Metastasis
Meningitis

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9
Q

Non COMMUNICATING Hydrocephalus
OBSTRUCTIVE Hydrocephalus
Causes: MA³D HIV

A

Mass lesions
Abscess
Aqueductal stenosis MCC
Arnold Chiari Malformation
DANDY Walker syndrome
Hematoma
Infections MUMPS TOXOPLASMA
Vein of Galen malformation

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10
Q

CSF PRODUCTION RATE

A

500-600 ml/day

600-700 ml GREYS

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11
Q

Choroid plexus of LATERAL VENTRICLE and 3rd VENTRICLE

A

Anterior Choroidal Artery (internal carotid artery)

Posterior Choroidal Artery (POSTERIOR CERBRAL ARTERY)

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12
Q

Choroidal plexus of 4th Ventricle

A

PICA > AICA

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13
Q

Tela choroidae

A

Tuft of capillaries
⬇️
Aggregation of Tela choroidae is known as CHOROIDAL PLEXUS

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14
Q

Normal Values of CSF
Adults
Infants

A

150 ml

50 ml infants

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15
Q

RECYCLING OF CSF OCCURS HOW MANY TIMES IN A DAY?

A

3.7 times/day

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16
Q

Regulation of CSF occurs at level of

A

ABSORPTION
@ Arachnoid villi

17
Q

Plasma vs CSF

A
18
Q

BEATEN SILVER APPEARANCE OF SKULL

A

HYDROCEPHALUS
DUE TO: increased convolutional marking

19
Q

VEIN OF GALEN

A
20
Q

CT vs MRI Brain

A

3 NERVOUS SYSTEM (40 decks)

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