12.30.2011
COARCTATION OF AORTA
Posted on 1:16 AM by know about heart
Narrowing of the aorta most commonly occurs in the region where the ductus arteriosus join the aorta, i.e. at the isthmus just below the origin of the left subclavian artery.
TYPES:
Congenital
a.Adult type:-Juxtaductal or slightly post-ductal.
b.Infantile type :-Preductal
Causes:
i) Congenital
ii) Trauma
iii) Takayasu’s diseases
Association:
i) Bicuspid aortic valve
ii) VSD & PDA
iii) Aneurysm of circle of Willis
Clinical feature:
Symptoms:
§Asymptomatic
§ Headaches
§ Weakness or cramps in the legs.
§ Nose bleeding
§Left ventricular failure
§Infantile heart failure in preductal coarction
§Rupture or dissection of aorta
Signs:
Pulse
- The femoral pulses are weak and delayed in comparison with the radial pulse (radio femoral delay).
-High volume & vigorous of carotid pulse
BP
-The blood pressure is raised in the upper body by normal or low in the legs. Precordium:
Visible cardiac pulse
§ Visible dilated tortuous artery around the scapula, anterior axilla of over the left sternal border
§ Apex beat having is nature
§ A systolic murmur is usually hard posteriorly, over the coarctation.
Investigation:
(i) ECG: Left ventricular hypertrophy
(ii) Chest X-ray:
§ If there is, no associated lesion the person of the heart is normal. §Indentation of descending aorta and notching of the under-surface of the ribs from collaterals
(iii) Echocardiography
§Can delineate site and length of coractation
§ Can accurately demonstrate the coarctation and quantity flow
Treatment:
§Surgical correction is advisable in all.
§ Recurrence of stenosis may be managed by transcatheter balloon dilatation
§ Treatment of hypertension
Cause of death:
(i) Acute LVF
(ii) Dissecting aneurysm
(iii) Subarachnoid hge.
Subscribe to:
Post Comments (Atom)
No Response to "COARCTATION OF AORTA"
Leave A Reply