What is an infundibular septum?
What is an infundibular septum?
The infundibular septum separates the right and left ventricular outflow tracts. On the right side, it is bordered by the line from the membranous septum to the papillary muscle of the conus inferiorly and the semilunar valves superiorly. The right side of the infundibular septum is more extensive.
What happens if tetralogy of Fallot is untreated?
If TOF is left untreated, it can cause problems with heart rhythms, developmental delays, and seizures. If the condition is never fixed, which is rare, it typically causes death by the age of 20 years old. Usually, a doctor will notice the condition early on and perform surgery to correct the problem.
What are the complications of tetralogy of Fallot?
What are possible complications of tetralogy of Fallot?
- Blood clots (which may be in the brain causing stroke)
- Infection in the lining of the heart and heart valves (bacterial endocarditis)
- Abnormal heart rhythms (arrhythmias)
- Heart failure.
Where is the infundibular septum?
The outlet septum, or infundibular or conal septum, is any muscle that is interposed between the two ventricular outflow tracts. It separates the leaflets of the two arterial valves [6,11–13]. When present, it is usually muscular, but on occasion it can be represented by a fibrous remnant.
How long is AVSD surgery?
The repair will take about 2 hours. The healthcare provider puts a small, flexible tube (catheter) into several blood vessels in the groin. One of the catheters will have a small device inside it. The provider threads the catheter through the blood vessel all the way to the ventricular septum.
What is Infundibular spasm?
DISCUSSION Infundibular spasm in a child with Fallot’s tetralogy leads to the syndrome of a ” hypoxic spell” or “cyanotic attack”. This presents as an episode of increased cyanosis with tachypnoea, tachycardia, loss of consciousness or even convulsions. Bradycardia usually pre- cedes cardiac arrest.
What is infundibular VSD?
Infundibular ventricular septal defects are located in the infundibular septum, between the two commissures of the right coronary cusp. The defect is associated with an anomaly of the right sinus of Valsalva where the transition to cusp tissue occurs higher than normally.
What size ASD require surgery?
In infants, small ASDs (less than 5 mm) will often not cause problems, or will close without treatment. Larger ASDs (8 to 10 mm), often do not close and may need a procedure.
Is there anatomic variation of the infundibular septum?
Anatomic variation of the infundibular septum was studied in transposition of the great arteries with ventricular septal defect in 23 hearts and double-outlet right ventricle with anterior position of the aorta in two hearts.
What is the difference between anterior and posterior septal displacement?
Anterior displacement of the infundibular septum (i.e., “false” Taussig-Bing heart) was associated with coarctation or interruption of the aortic arch in 88% of the cases, whereas posterior displacement resulted in subpulmonary narrowing in 100% of the cases.
Why is the Rastelli procedure preferred for posterior displacement of the septum?
In hearts with posterior displacement of the infundibular septum, the anterosuperior rim of the defect is difficult to approach through the tricuspid valve, and the route from the left ventricle to the aorta is rather straight. Hence, the Rastelli procedure is preferable.