's treatment of a narrow surgery of lung artery

's treatment of a narrow surgery of lung artery
Lung artery mouth narrow to mean right ventricle funnel portion, lung the intersection of artery and petal or lung artery doing and branch place narrow always, it can have alone or as other hearts, dirty and odd-shaped happy blocks of four of component such as law,etc.. Morbidity its account for congenital heart disease 10% about, artery mouth narrow lung petal narrow and most common with the intersection of lung and artery, account for 90%, it is narrow for the funnel one secondly, the pulse artery is done and the branch is narrow and rare.
The intersection of disease and men and women this than about 3: 2,Age of onset is mostly among 10-20 years old, it is closely related with that symptoms and lung arteries are narrow, the narrow patient of slight lung artery generally has no symptom, but as increase symptom of age is manifested gradually, such symptoms as mainly shown as palpitation after the endurance of working is bad, weak and tired, out of breath. Severe to can have dizzy or faint, break out while being getting narrow, case appear the intersection of neck and intravenous the intersection of anger and piece, the intersection of liver and swelling and the intersection of lower extremities and the intersection of edema,etc. and depleted symptom of right heart later period, if the compatible atrial septal defect or oval nest has not been closed, it is obvious the lip or tip is referred to (toe) End cyanosis and poke point ' Toe) .
Severe the intersection of lung and the intersection of artery and the intersection of mouth and narrow patient, because right ventricle plump to it is obvious the intersection of brestbone and left predestination to rise forward, the district can lay one's hand on and lift one kind of excited senses of interest before the heart, the tricuspid valve district could not close completely because of the tricuspid valve relativity, can hear that dry one kind of systolic phase noises in this place, take care the blood flows out right now while shunting left in the room, the patient's lip and four limbs are referred to ' Toe) End can present the intersection of cyanosis and the intersection of pen and poke point ' Toe) .
Treat slight lung to be artery narrow to have symptom at the clinical patient, can grow and meet normal viability, need surgery to treat normally, medium-sized degrees of the intersection of lung and the intersection of artery and narrow patient, appear out of breath state of palpitation under activity while being about 20 years old generally, if does not adopt the surgery treatment, will inevitablely lead to the fact with the years the load of right ventricle is overweight to present depleted symptom of the right heart, thus lose life and labour capacity and often present obvious symptom to the narrow patient of extremely severe lung artery in infancy, if it can often be in the death in infancy not to treat in time.
(1) Operation indication
The intersection of patient and symptom, electrocardiogram have, change unusually obviously, right heart conduit check, show right the intersection of room and systolic pressure in 8.0kPa( 60mmHg) The above, or it is greater than 5.3kPa( 40mmHg) badly to step a pressure rank ,Or supersound aroused in interest to pursue, check, show petals of hole, belong to intermediate to should consider surgery while being narrow in 1.0- 1.5cm.
There is not symptom but the heart electricity illustrationally shows right ventricular hypertrophy or with straining, it has intermediate persons who increase that slice shows the heart in the X-ray.
There are symptom electrocardiogram and X-ray that have persons who unusually change, age of operation is by implementing preschoolly for being good.
Symptom have, faint, break out history belong to extremely getting narrow, should until baby perform a surgical operation by lightening the load of right ventricle infancy obviously.
(2) Operation methodLung artery one narrow at intermediate low-temperature generally in the past ' 30- 32 ) Implement ocular to depend on membrane juncture cut skill, low-temperature method simple and convenient, until physiological disorder of function less in the body, resume smoothly while being postoperative, but because low temperature only can offer, circulate, block 6- 8 minutes such as time limit safely, must finish to operate hurriedly in the heart, and does not have abundant time to ascertain and correct and manage the deformity in the heart. Extracorporal circulatory system becoming better and approaching perfection day by day in recent years, myocardium protection and the intersection of operation and progress of skill make in the heart regarding performing the operation as safe direct, therefore lung the intersection of artery and the intersection of mouth and narrow operation adopt extracorporal circulatory system generally direct-view correct cure skill in the lower heart.
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