Lazzaroni M, Battocchia A, Bianchi Porro G
Chair of Gastroenterology, L Sacco University Hospital, Via GB Grassi, 74, Milan, Italy.
Dig Liver Dis. 2007 Jun;39(6):589-96. doi: 10.1016/j.dld.2007.04.002. Epub 2007 Apr 24.
Although adverse effects of nonsteroidal anti-inflammatory drugs occur in only a small proportion of users, the widespread use of these drugs has resulted in a substantial overall number of affected persons who experience serious gastrointestinal complications. Dyspeptic symptoms are estimated to occur in 10-60% of nonsteroidal anti-inflammatory drug users and lead to discontinuation of treatment in 5-15% of rheumatoid arthritis patients taking nonsteroidal anti-inflammatory drugs. It is now well established that the point prevalence of peptic ulcer disease in patients receiving conventional nonsteroidal anti-inflammatory drug therapy ranges between 10 and 30%, representing a 10- to 30-fold increase over that found in the general population. One out of 175 users of conventional nonsteroidal anti-inflammatory drugs in the USA will be hospitalized each year for nonsteroidal anti-inflammatory drug-induced gastrointestinal damage. The mortality of hospitalized patients remains about 5-10%, with an expected annual death rate of 0.08%. The selective COX-2 inhibitors consistently show comparable efficacy to that of conventional nonsteroidal anti-inflammatory drugs in patients with rheumatoid arthritis and osteoarthritis, but have a reduced propensity to cause gastrointestinal toxicity. In many cases, the gastric effects of therapeutically active doses of COX-2 inhibitors are indistinguishable from placebo. The safety benefits of COX-2 inhibitors given alone appear similar to those of combined therapy with conventional nonsteroidal anti-inflammatory drugs and gastroprotective agents. These findings warrant the consideration of COX-2 inhibitors as first-line therapy in patients requiring long-term pain control.
尽管非甾体抗炎药的不良反应仅发生在一小部分使用者中,但这些药物的广泛使用已导致大量受影响者出现严重的胃肠道并发症。据估计,10%至60%的非甾体抗炎药使用者会出现消化不良症状,在服用非甾体抗炎药的类风湿性关节炎患者中,有5%至15%的患者因此停药。现已明确,接受传统非甾体抗炎药治疗的患者中消化性溃疡病的点患病率在10%至30%之间,比普通人群高出10至30倍。在美国,每年每175名使用传统非甾体抗炎药的患者中就有1人因非甾体抗炎药引起的胃肠道损伤而住院。住院患者的死亡率约为5%至10%,预计年死亡率为0.08%。选择性COX-2抑制剂在类风湿性关节炎和骨关节炎患者中始终显示出与传统非甾体抗炎药相当的疗效,但引起胃肠道毒性的倾向较低。在许多情况下,治疗活性剂量的COX-2抑制剂对胃的影响与安慰剂无异。单独使用COX-2抑制剂的安全性益处似乎与传统非甾体抗炎药和胃保护剂联合治疗的益处相似。这些发现值得将COX-2抑制剂作为需要长期控制疼痛的患者的一线治疗药物加以考虑。