The most critical killer in main arteriectasis pathological change - -Intermediate layer of aorta

The most critical killer in main arteriectasis pathological change - -Intermediate layer of aorta
The intermediate layer of aorta is the most common calamitous pathological change in aorta disease, its prognosis is worse than main aneurysm. There are materials that show, is not treated, the acute aorta intermediate layer about 33% is in the 24-hour death, 50% die within 48 hours, 80% die within one week. Among them about 75% die from the aorta and break. The intermediate layer of aorta can cause the aorta to break, the aorta one can not close completely and importantly internal organs blood supply obstacle. The wall structure of aorta is similar " The sandwich " White great wave introduction, the aorta wall can be divided into three storeys on institutional framework: The membrane in the aorta, the membrane, is similar to " sandwiches " outside middle level of aorta and aorta Structure. The intermediate layer of aorta because the membrane breaks in the aorta, the blood in the aorta enters the middle level of aorta under the function of the pressure through the inner membrane breach, the tearing leading to the fact the middle level of aorta is parallel to aorta, and there is blood that flows on the middle level of aorta. "But the production of the intermediate layer of aorta is caused by a lot of factors, comparatively certainly have illness coming on at present the mechanism is: The change of the middle level structure of aorta, blood pressure is changed, especially hypertension causes the blood vessel wall to cut the stress (shear strength) horizontally Increase, cause in the aorta the membrane is torn, hematoma spread to cause the intermediate layer of aorta among the walls. " Acute the intersection of aorta and the intersection of intermediate layer and symptom take pain as the core white great wave say aorta intermediate layer divide into for being anxious and chronic, the two are facing the manifestation in bed differently, symptom of the intermediate layer of acute aorta is pain, there can be the paining vigorously of proruption in the acute aorta intermediate layer of overwhelming majority, it is a sharp pain of the continuation, if " the knife is cut kind " ,Insufferable, patient's irritation is uneasy, profuse sweating. Symptom that the intermediate layer of aorta breaks: The aorta rises while breaking, the acute pericardium emerges to press and fill in because the blood is entered the pericardium, most patients die suddenly within several minutes. The chest aorta can lead to the fact the left thorax accumulates the blood while breaking; The interval behind the blood enters peritoneum after the belly aorta breaks. The above-mentioned patient loses blood to behave, symptom such as being for instance thirsty, agitated. The hematoma patient can also have symptoms such as abdominal pain, abdominal distension,etc. behind the peritoneum, need distinguishing with abdominal cavity's blood supply obstacle of internal organs. The aorta one closes symptom not complete: The slight aorta one can not have symptom while closing completely a patient, or is concealed by pain symptom. The above intermediate aorta one can not be closed full-timely, patients can present symptoms such as palpitation, breathing hard,etc.. It is serious can have pink without being expectorated on foam phlegm,can't heart depleted behaviors lefts acute of lying etc. flat. Symptom of the important internal organs blood supply obstacle: At the time of the coronary artery blood supply obstacle, can show as angina pectoris, myocardium infarction, the serious one cause the death. The head arm is done and given much trouble and presented fainting, going into a coma, hemiplegia,etc. while causing the obstacle of blood supply of brain. The blood supply obstacle of intercostal artery is serious there can be paraplegia. Congruence that abdominal cavity's blood supply obstacle of internal organs can not cause abdominal pain, abdominal distension, intestines paralysis, intestines necrosis, renal function. "Except that acute to break out in the history, the clinical manifestation of the intermediate layer patient of chronic aorta relies mainly on the fact that the position aorta of intermediate layer increase thickly, oppress symptom, such as it is hoarse and swallowing difficult, having difficulty in breathing, left lung to infect etc. to pronounce. " The different white great wave of healing solution of intermediate layer of aorta shows, because it is massive haemorrhage of mortality that most often face in trunk surgery, doctor, for can stop, bleed, often all through the night, day and night, can patient bleed finally and the intersection of operation and time pass long and death. So the insider calls the trunk operation vividly sanguinary battle, fight at night, life-and-death struggle. "The intermediate layer of aorta is divided into A, B type, the result of treatment of intermediate layer surgery of Model A aorta is better than drug therapy, because Model A aorta intermediate layer break and the intersection of aorta and petal close lethal danger relatively large completely. " Bai Tao says, acute patients, especially only involve the intermediate layer which promotes the aorta, there is the pericardium that accumulates the liquid or thorax and accumulates the liquid, a persons who can not close completely of aorta should make the surgery of emergency call in positive drug therapy to or amalgamate, can prevent the intermediate layer from continuing stripping, reduce aorta breaking and incidence which the acute left heart declines. And Model B the intersection of aorta and the intersection of intermediate layer and tradition it treats tactics to be internal medicine department conservative to treat, but with the development of technology of getting involved, after the aorta intermediate layer of Model B has illness coming on, should first choose to get involved and treat at present.

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