猪肠吻合术后复合性肠套迭一例

1999年初 ,我院在做猪肠吻合术后局部感染模型中 ,一只受试猪发生了少见的复合性肠套迭。报告如下。该例实验猪术前体检时健壮、活跃 ,无异常征象。手术过程顺利 ,切除肠段以迥盲瓣为中心分别于近端和远端切除 30ｃｍ左右。术后辅以甲硝唑和庆大霉素等抗菌素治疗。手术后 2 0多小时发现该猪不吃不动 ,精神差。腹部检查无明显压痛 ,腹隆起不明显。术后 50小时死亡。立即剖解观察。翻开肠段 ,发现空肠中段有一淤血肠管 ,相对应的肠系膜出现淤血、坏死 ,远端肠管明显充气 ,增粗 ,致肠管呈半透明状 (图片 ,见封 4 )。随即将局部肠段从远心端透明…     

Recurrent Haemorrhage after Acute Gastrointestinal Bleeding

A retrospective survey of 472 consecutive hospital admissions for acute upper gastrointestinal bleeding showed that patients with a large initial bleed are more likely to bleed again than those with a small initial bleed. The incidence of recurrent haemorrhage is also related to the interval since the last bleeding episode, so that patients showing no clinical evidence of haemorrhage for 48 hours are unlikely to bleed again in the near future. Patients admitted after a haematemesis have a higher incidence of recurrent haemorrhage than those admitted after melaena only. Aetiology has been confirmed as an additional important factor, the incidence being highest in those with oesophageal varices or a chronic gastric ulcer. Contrary to widespread belief, age does not appear to affect the incidence of recurrent haemorrhage, nor do other constitutional factors such as sex or the ABO blood group.