What is congenital heart disease.'The heart is a 4-chambered organ. The higher (small) chambers are known as auricles and the decrease (bigger) are known as ventricles. The auricles on either side are linked with their respective ventricles by an orifice/ opening, the left one known as mitral orifice and the fitting one known as tricuspid orifice. The orifices are guarded by valves (known as the mitral valve and the tricuspid valve) so that blood flows in a single route solely i.e. from auricles to ventricles, on every side.
The left side of the heart contains pure or oxygenated blood. After oxygenation, the blood comes from the lungs to the left higher chamber i.e. the left auricle by the pulmonary veins. From left auricle, the blood goes to the left ventricle by the mitral orifice, and from the left ventricle, the blood is pushed/pumped into the aorta (by the aortic orifice, guarded by the aortic valve) i.e. the main blood vessel which provides blood to the complete body by its several branches.
From the body, the blood has to return to the heart for additional oxygenation. This blood enters into the higher proper chamber of the heart (proper auricle), by superior vena cava which returns the blood from the higher half of the body and through the inferior vena cava, which returns the blood from the decrease half of the body. The blood then goes to the fitting ventricle by the tricuspid orifice. The fitting ventricle additional pushes the blood by the pulmonary orifice (guarded by pulmonary valve) into the pulmonary trunk, which divides into proper and left pulmonary arteries for carrying the blood additional to the fitting and left lung respectively, for oxygenation.
It is apparent from the above that the left side chambers include oxygenated blood whereas the fitting side chambers include impure blood. The fitting and left side chambers of the heart aren't linked in any manner, so that there is no mixing of pure and impure blood.
The primary pulmonary artery/trunk which carries blood from proper ventricle to the lungs for oxygenation could also be involved. If this vessel is stenosed, known as pulmonary stenosis (PS), the whole blood from the fitting ventricle won't be able to go to the lungs for purification. This defect could also be related to a septal defect both between the 2 auricles known as atrial septal defect (ASD) or between the 2 ventricles known as ventricular septal defect (VSD), or both, so that impure blood goes to the left side (as in such circumstances pressure is more within the chambers on the fitting side), i.e. into the left auricle or the left ventricle.
In this manner, left side chambers of the heart as an alternative of containing pure oxygenated blood, include mixed blood i.e. both pure and impure blood. This mixed blood is supplied to the body by the aorta, so that the body as an alternative of getting pure oxygenated blood, will get mixed blood, and hence every organ/tissue of the body suffers, and the child could also be born. blue/ cyanosed, or turns into blue with a slight exertion.
If pulmonary stenosis (PS) is related to VSD With resultant proper ventricular hypertrophy (RVH), and the aorta additionally will get linked with the fitting ventricle (because of VSD), known as dextroposition of the aorta (DA), the condition known as tetralogy of Fallot (PS, VSD, RVH, DA). And when tetralogy of Fallot is related to ASD, the condition known as pentalogy of Fallot. In such circumstances the child is predicted to be markedly blue (cyanosed) proper from delivery i.e. a blue child could also be born.
Saturday, April 14, 2012
What is|What's] Congenital Coronary heart Illness (CHD)?
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