■ Marfan syndrome
connective tissue 결함 → abdomen aneurysm이 가장 흔함
Transforming growth factor - bata↑, fibrillin-1 ↓
dilatation of the aortic ring
Generalized disorder
Aortic dissection, AR, MVP
■ MVP
Mid systolic click = late systolic
순간적인 일탈로 MV diameter increased
MV에 prolapse생기면 AV나 TV에도 prolapse 생길가능성 ↑
MR동반이 많고 , MR과 동일하게 LVVO
※ flail 구분법 : valve tip방향의 차이
- prolapse : LV방향
- flail : LA방향
■ Aorta Dissection
- Recognition of intimal flap within aorta
- intima tear of aortic wall
- pleural effusion , pericardial effusion
- AR발생
- dissection의 분류 : Stanford type A : ascending aorta포함 (Debakey Ⅰ,Ⅱ로 나뉨)
Stanford type B : descending aorta쪽 dissection (Debakey Ⅲ)
intramural gematoma ← penetrating ulcer ← dissection
← vasa vasorum(vessel of vessel)의 rupture
증상
- Chest pain that radiated to the back
- systemic hypertension + LV hypertrophy (aorta에 부담 多, dissection 발생)
- widening of the superior mediastinum
descending thoracic aorta를 볼수있는 view : 2champer apical view
- thoracic aorta aneurysm관련 질환 : Syphilis
Bicuspid Aortic valve : Hammock appearance aortic valve leaflet
post stenotic aortic root dilatation
supravalvular aortic stenosis
LVVO (X), LVPO (O)
AS+AS동시에 있는 경우 MPG로 측정.
'초음파' 카테고리의 다른 글
GB stone, 모래알갱이같은데? (0) | 2023.08.31 |
---|---|
AE) LA와LV (0) | 2023.08.28 |
AE) Mitral valve (0) | 2023.08.27 |
AE)coronary sinus, coronary artery (0) | 2023.08.26 |
AE)심장의 역할, 전기적자극, 심장의사운드 (0) | 2023.08.26 |