Clinical manifestation _ symptom of diphtheria myocarditis
The circulation function obstacle that diphtheria causes, can show as the circulatory failure and cardiac muscle around are damaged. Circulatory failure around often takes place in the course of disease on the 1st weekend. The infant revealed shock suddenly, the skin was pale, four limbs fainted coldly, pulse was accelerated but weak, blood pressure dropping, electrocardiograms were mostly normal, may act due to centre or tip blood vessel of moving on the blood vessel because of bacillus ectotoxin of diphtheria.
The cardiac muscle is damaged and often taken place on the second weekend or the beginning the third week of course of disease. The patient is in convalescence more, rhythm of the heart unusual or congestive and in heart failure took place suddenly, the skin is pale or livid purple, tachycardia, it is rapid to breathe, it can't be flat to lie, edema of face, the lung finds the rale, the liver is swelling, the heart sound is low and blunt, it is not whole that galloping horse's law or rhythm of the heart can take place, but there is no meaningful noise, display serious rhythm of the heart often atrio-ventricular block, getting complete bunch prop up block, room tachycardia or ventricle quivers etc. unusual if complete, can cause A - Sri Lankan's syndrome. Electrocardiogram and heart X-ray are a scene of finding, generally the same as myocarditis.
The prognosis of diphtheria myocarditis is serious, the person who erupts severe block simultaneously, the case fatality rate is very high, but can fully recover after resuming, seldom leave over heart disease.
This disease sees more children, it is the season of occuring frequently in Winter-Spring. Mainly infected by the droplets, can also be through the toy, clothes and apparatus spread indirectly. There are the following clinical manifestation characteristics:
1,The sign of diphtheria includes that it is disgusting and vomiting to generate heat, swallowing, throat, nose, have false membrane of diphtheria that take shape on skin and other positions once in a while, some enlargement of lymph nodes, can appear " Ox's neck " When. Diphtheria still can appear respiratory tract block symptom, inhale the intersection of cicada and sound of chirping occasionally or appear " three concave to solicit " .
2,The circulatory system is given much trouble and displayed including weak, pale complexion, cyanosis, having difficulty in breathing,etc. and symptom. There are the physical examinations it is expanded that the heart is light to intermediate, the heart sound is low and blunt, can present one kind of heart sounds of fetus, tachycardia or pass the slow (mostly atrio-ventricular block phenomena) ,The apex of the heart district can present systolic phase and dry one kind of noises and relaxation and galloping horse's law, extensive myocardium pathological change can cause the intersection of heart and source shock, many to blow after being ill happening 2 week, have the intersection of skin and pale, the intersection of nausea and the intersection of person who vomit, suffer from abdominal pain and symptom first often, the intersection of appearance and four limbs that continue faint cold, the intersection of pulse and thin and delicate, the intersection of blood pressure and the intersection of person who drop and sign. The intersection of diphtheria and the intersection of bacillus and until low blood vessel and blood vessel contract toxic function of centre while being easy around ectotoxin, also may be a reason which cause a copy of disease, shock. There can also be congestive sign in heart failure, including the symptoms of lung extravasated blood and extravasated blood of the systemic circulation, physical sign.
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