Gastrointestinal radiation injury:Symptoms,risk factors and mechanisms

作     者：Abobakr K Shadad Frank J Sullivan Joseph D Martin Laurence J Egan 

作者机构：Department of GastroenterologyUniversity Hospital GalwayUniversity Hospital Galway34562 GalwayIreland Department of Pharmacology and TherapeuticsSchool of MedicineUniversity Hospital Galway34562 GalwayIreland Department of Radiation OncologyNational University of Ireland GalwayUniversity Hospital Galway34562 GalwayIreland 

出 版 物：《World Journal of Gastroenterology》 (世界胃肠病学杂志（英文版）)

年 卷 期：2013年第19卷第2期

页      面：185-198页

核心收录：

学科分类：0831[工学-生物医学工程（可授工学、理学、医学学位）] 1002[医学-临床医学] 08[工学] 

主　　题：Radiation enteritis Radiation proctitis Symptoms Pathophysiology Risk factors 

摘      要：Ionising radiation therapy is a common treatment modality for different types of cancer and its use is expected to increase with advances in screening and early detection of cancer.Radiation injury to the gastrointestinal tract is important factor working against better utility of this important therapeutic modality.Cancer survivors can suffer a wide variety of acute and chronic symptoms following radiotherapy,which significantly reduces their quality of life as well as adding an extra burden to the cost of health care.The accurate diagnosis and treatment of intestinal radiation injury often represents a clinical challenge to practicing physicians in both gastroenterology and oncology.Despite the growing recognition of the problem and some advances in understanding the cellular and molecular mechanisms of radiation injury,relatively little is known about the pathophysiology of gastrointestinal radiation injury or any possible susceptibility factors that could aggravate its severity.The aims of this review are to examine the various clinical manifestations of post-radiation gastrointestinal symptoms,to discuss possible patient and treatment factors implicated in normal gastrointestinal tissue radiosensitivity and to outline different mechanisms of intestinal tissue injury.