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562例急性放射病与放射复合烧伤、冲击伤死亡狗共发生肠套迭23例(4.09%),全部出现在骨髓型和肠型病例,未见于脑型与射线下死亡者。治疗组动物的肠套迭发生率达6.36%(14/220例),而效应组为2.63%(9/342例);单纯放射病时肠套迭的发生率为0.61%(1/164例),复合烧伤或复合烧伤、冲击伤时为4.49%(8/178例);骨髓型放射病时肠套迭的发生率为7.11%(17/239例),较肠型者2.34%(6/256例)显著增高。肠套迭最早见于照后23.5小时,最迟23.9天死亡狗,平均11.96±5.64天,以照后第二、三周发生率较高。肠套迭病例的照射剂量在137—4965拉德之间,其中265—1500拉德最多见。狗单纯放射病时并发肠套迭的照射阈剂量为660拉德,放烧复合伤时为265拉德,放烧冲复合伤时为137拉德。23例肠套迭中见单套迭(20例)和多套迭两种,后者包括双套迭(2例)和三套迭(1例)。小肠套迭(空空肠套迭和回回肠套迭)约占61%,回结肠套迭约占17%,十二指肠胃套迭约9%,多发型约13%。依据肠套迭病理变化,可分为单纯型(5例)、水肿型(1例)和坏死型(17例)。三型可能是肠套迭局部病变由轻到重依次发展的过程。肠套迭局部粘膜坏死、静脉淤滞、水肿、纤维素渗出、出血,并发细菌感染。其特点是上述病变较临床上肠套迭更多见,更严重;病变部位缺乏炎细胞反应。
There were 23 cases (4.09%) of 562 cases of acute radiation sickness, radiotherapy combined with burn and impact injury. All cases were found in cases of bone marrow and intestinal type, and no cases of brain-type and radiation died. In the treatment group, the incidence of intussusception was 6.36% (14/220 cases) in the treatment group and 2.63% (9/342 cases) in the response group. The incidence of intussusception was 0.61% (1/164 cases) in the radiotherapy alone group, , Combined burns or combined burns were 4.49% (8/178 cases) in the case of impact injuries and 7.11% (17/239 cases) in the cases of bone marrow type radiosurgery, which was 2.34% (6/256) Cases) were significantly higher. Intestinal intussusception first seen in 23.5 hours after irradiation, the latest dead dog 23.9 days, an average of 11.96 ± 5.64 days, to the second and third weeks after the higher incidence. Intestine cases of radiation dose in 137-4965 Radian, of which 265-1500 rad most see. Dogs with simple radiotherapy when combined with intussusception dose threshold of 660 rad, put burn burn combined with 265 rad, burned red combined when the injury was 137 rad. In 23 cases of intussusception, there were two sets of single set (20 cases) and multiple sets of packs, the latter including two sets of packs (two cases) and three sets of packs (one case). Intestinal intussusception (empty jejunum Diego and gynecologic intussusception) accounted for about 61%, about 17% back to the colon intussusception, duodenal stomach sleeve Diego about 9%, about 13% of the hair type. According to pathological changes of intussusception, can be divided into simple type (5 cases), edematous type (1 case) and necrotic type (17 cases). Type three may be intussusception of local lesions from light to heavy in turn the process of development. Intestinal intussusception of local mucosal necrosis, venous stasis, edema, exudation of cellulose, bleeding, concurrent bacterial infection. It is characterized by clinical lesions than the intussusception more common, more serious; lack of inflammatory cells in the lesion.