A narrow _'s general knowledge of cause of disease of lung artery

A narrow _'s general knowledge of cause of disease of lung artery
In the first 3 months forming the cupping jar network in the embryo, the foetus can lead to the fact the lung artery was narrow for various reasons. Two important reasons that are worth pointing out among them, one is environmental factor, namely nettle rash and syndrome, another one is family's genetic factor. If mother suffered from nettle rash to bring about nettle rash and syndrome in foetus during pregnant the first 3 months, shown as cataract, deafness and cardiovascular vessel deformity are searched for healthily but the cardiovascular vessel deformity person is that the lung artery is narrow at most, can also be narrow for the lung artery valve. Have found there are family nature lung arteries one has been narrow, the morbidity among the brothers is 2.9% recently; ,Among other syndromes if it is narrow that there can also be lung arteries one in Noonan syndrome, but the cause of disease that most patients search for healthily has not been verified yet. Main artery semilunar valve to do raised development from artery, lung the intersection of artery and petals of frontal lobe come from left lie between dislocated upwarping, and then the left and right leaf comes from the left, artery in right and does the dislocated upwarping separately. It is not so obvious that a leaf is united to separate and form a narrow forming mechanism of lung artery while organizing by these embryos. Not in petals of leaf or among separate at all during dislocated upwarping lain between. If there is connective tissue bunch or sew the mark and may be searched for and merged on a leaf among a leaf of later period for embryo's development healthily and caused, also think foetuses in the heart membrane inflammation relates to narrow emergence that searches for healthily of valve.
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