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OCULAR DISEASE I > VASCULAR MALFORMATION > Flashcards

VASCULAR MALFORMATION Flashcards

1
Q

Types of Vascular Malformation
(LVAA)

A

Lymphatic Malformation
Venous malformations of the orbit
Arteriovenous Malformations
Arteriovenous fistulas

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2
Q

a.k.a lymphangiomas

A

Lymphatic malformations

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3
Q
  • multi-cystic
  • localized malformations that involve the lymphatic and vascular systems
A

Lymphatic malformations

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4
Q

Cause of lymphatic malformations

A
  • lymph vessels form abnormally
  • which leads to aberrant development and congenital malformation
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5
Q

usually become apparent in the _____ or _______ decade of life

A

lymphatic malformations; first, second

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6
Q

common affected locations of lymphatic malformations (CEOSH)

A

-conjunctiva
- eyelids
- oropharynx
- sinuses
- head and neck region

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7
Q

management of lymphatic malformations (OISS)

A
  • observation
  • intralesional sclerosant injection
  • systemic medication
  • surgery
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8
Q

prevents cell growth and proliferation (sa lymphatic malformations ni related)

A

systemic medication

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9
Q

TRUE/FALSE: Surgery is the reduction in the size of the cyst or lesion

A

FALSE (intralesional sclerosant injection)

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10
Q

observation of lymphatic malformation as treatment is only applicable to those

A
  • who do not have vision threatening symptoms
  • severe physical disfigurement
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11
Q

a.k.a orbital varices

A

venous malformations of the orbit

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12
Q

low flow vascular lesions resulting from vascular dysgenesis

A

venous malformations of the orbit

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13
Q

Px’s with venous malformations of the orbit may exhibit

A
  • enophthalmos at rest, when the lesion is not engorged
  • proptosis
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14
Q

treatment for venous malformations of the orbit is usually ________

A

conservative

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15
Q

surgery for venous malformations of the orbit is reserved for

A
  • relief of significant pain
  • possible vision-threatening compressive optic neuropathy
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16
Q

high-flow developmental anomalies

A

arteriovenous malformations

17
Q

composed of abnormally formed connecting arteries and veins

A

arteriovenous malformations

18
Q

treatment of arteriovenous malformations (SS)

A
  • selective occlusion (blockage) of the feeding vessels
  • surgical excision
19
Q

acquired lesions characterized by abnormal direct communication between an artery and a vein

A

arteriovenous fistulas

20
Q

blood flow does not pass through an intervening capillary bed

A

arteriovenous fistulas

21
Q

2 forms of acquired arterial diversion that affect the cavernous sinus

A

direct carotid-cavernous fistulas & indirect,or dural,carotid-cavernous fistulas

22
Q

TRUE/FALSE: Direct carotid-cavernous fistulas is a connection between meningeal branches of the internal carotid artery and the cavernous sinus

A

FALSE

23
Q

typically occur after a trauma

A

direct carotid-cavernous fistulas

24
Q

connection between the internal carotid artery and the cavernous sinus

A

direct carotid-cavernous fistulas

25
Q

characteristics of direct carotid-cavernous fistulas (TPIEO)

A
  • tortuous conjunctival blood vessels
  • pulsatile proptosis
  • ischemic ocular damage
  • elevated IOP
  • ocular motility abnormalities
26
Q

complications for direct carotid-cavernous fistulas (CED)

A
  • compression of cranial nerves III, IV & VI
  • EOM palsies
  • diffuse enlargement of EOM
27
Q

connection between meningeal branches of the internal or external carotid artery or both and the cavernous sinus

A

indirect, or dural,carotid-cavernous fistulas

28
Q

indirect carotid-cavernous fistulas is a degenerative process in older Px’s with (SVA)

A
  • systemic hypertension
  • vascular disease
  • atherosclerosis
29
Q

characteristics of an indirect carotid-cavernous fistulas (OMPPCA)

A
  • onset can be gradual
  • mild orbital congestion
  • proptosis
  • pain
  • chronic red eye
  • asymmetric elevation of IOP
30
Q

risks of indirect carotid-cavernous fistulas

A
  • glaucomatous optic
  • disc damage
31
Q

treatment for arteriovenous fistulas

A

coil embolization

32
Q

this is placing a small platinum coil where the abnormal connection is located; this also separates the blood flow of the carotid arteries from that of the veins

A

coil embolization

33
Q

what’s the result of coil embolization

A

blood can drain properly from the eyes

OCULAR DISEASE I (1 decks)

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