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发病机理目前多数学者认为,伤寒并发心肌损害,系因伤寒杆菌内毒素对心血管系统及其神经装置的损害。而心肌损害主要表现为感染——中毒性心肌营养不良,呈弥漫性心肌营养不良。这种损害又同伤寒患者的年龄与病情有关,一般年龄越大,病情越重,发生率越高,损害越重。60岁以上的老年病人,不仅易发生心肌损害,且易进一步引致休克。小儿病人中则年龄大者相对较易发生心脏损害。有人认为伤寒病人心电图 P—R 的延长,乃由于伤寒杆菌内毒素对迷走神经的损害所致。病理变化伤寒性心肌损害,主要表现为心肌混浊肿胀,
Pathogenesis At present, most scholars believe that myocardial damage caused by typhoid fever, due to typhoid bacillus endotoxin damage to the cardiovascular system and its nerve devices. Myocardial damage is mainly manifested as infection - toxic myocardial malnutrition, showed diffuse myocardial malnutrition. This damage and typhoid fever patients with the age and condition, the general age, the more serious the case, the higher the incidence of damage heavier. Elderly patients over the age of 60, not only prone to myocardial damage, and easily lead to further shock. Pediatric patients in the older are relatively prone to heart damage. Some people think typhoid patients electrocardiogram P-R extension is due to typhoid bacillus endotoxin damage to the vagus nerve. Pathological changes of typhoid myocardial damage, mainly manifested as myocardial swelling and swelling,