消化
词汇介绍
拓展阅读
解析
hemobilia 英 [hi:məʊ'bɪljə] 美 [hi:moʊ'bɪljə]
释义 n. [内科] 胆道出血
例句 Hemobilia is manifested by upper gastrointestinal bleeding.
胆道出血表现为上消化道出血。
概述
概述
由于损伤或感染等原因导致肝内、外胆管与毗邻血管之间形成病理性内瘘,血液经胆管流入十二指肠,称为胆道出血。胆道出血在上消化道出血病因中居第五位。
病因
(1)胆道感染或结石是造成胆道出血的首位原因;
(2)损伤致胆道出血;
(3)其他原因,如肝动脉瘤、肝癌等。
临床表现
与出血量及速度有关。病人多有外伤、胆管结石感染、蛔虫、肿瘤或肝胆手术史。
大量出血的典型表现有:①消化道出血:便血或呕血;②胆绞痛;③黄疸。出血量大导致休克者应考虑动脉出血。血凝块堵塞胆管时引起胆绞痛和黄疸。胆道出血还具有周期性发作的特点。
诊断
根据具有周期性发作的三联症,诊断一般无困难。但首次发作尚须与上消化道出血的其他原因相鉴别。
(1)选择性肝动脉造影和(或)肠系膜上动脉造影是了解胆道出血最有价值的诊断和定位方法;
(2)内镜检査可排除其他来源的上消化道出血,并可观察到十二指肠乳头有出血;
(3)超声检査可观察到肝内胆管结石、肝脓肿或肿瘤,提供出血的原因;
(4)CT、MRI、核素显像等也具有一定的诊断价值;
(5)剖腹术中胆道探查是诊断胆道出血最直接的方法,术中借助胆道镜可清楚地观察到出血来源的方位。
治疗
(1)非手术治疗适应证:①出血量少;②无寒战高热、黄疸或感染性休克;③病人的状况不能耐受手术。治疗方法主要是给予止血药和输血。
(2)手术治疗适应证:①反复出血;②出血量大,发生休克;③非手术治疗出血无自止倾向;④病灶明确者。
手术方式:①放射介入法行肝动脉栓塞术;②胆总管探查T形管引流术;③肝动脉结扎术;④肝叶切除术。
Hemobilia: historical overview, clinical update, and current practices复制标题
胆道出血: 历史概述、临床更新和当前实践
发表时间:2019-08-15
影响指数:5.5
作者: Alex Zhornitskiy
期刊:Liver International
Hemobilia refers to macroscopic blood in the lumen of the biliary tree. It represents an uncommon, but important, cause of gastrointestinal bleeding and can have potentially lethal sequelae if not promptly recognized and treated. The earliest known reports of hemobilia date to the 17th century, but due to its relative rarity and challenges in diagnosis, it has historically not been well-studied. Until recently, most cases of hemobilia were due to trauma, but the majority now occur as a sequelae of invasive procedures involving the hepatopancreatobiliary system. A triad (Quincke’s) of right upper quadrant pain, jaundice, and overt gastrointestinal bleeding has been classically described in hemobilia, but it is present in only a minority of patients. Therefore, prompt diagnosis depends critically on a high index of suspicion based on a patient’s clinical presentation and a history of recently undergoing hepatopancreatobiliary intervention or having other predisposing factors. Treatment of hemobilia depends on the suspected source and clinical severity and thus ranges from supportive medical care to urgent advanced endoscopic, interventional radiologic, or surgical intervention. In the present review, we provide a historical perspective, clinical update, and overview of current trends and practices pertaining to hemobilia.
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