Quigley EM
Department of Internal Medicine, University of Nebraska Medical Center, Omaha, NB 68198-2000.
Curr Treat Options Gastroenterol. 1999 Jun;2(3):239-250. doi: 10.1007/s11938-999-0063-9.
For many patients, nutritional support and relief of symptoms remain the primary management goal of pseudo-obstruction. Specific pharmacological agents for this disorder are, in general, lacking. Given that the efficacy of many of the individual available agents is far from excellent, several centers have turned to combination therapy. Though there is at present no evidence from controlled studies to support this strategy, it is, at the very least, theoretically attractive as these agents act through a number of separate mechanisms. The combination of a prokinetic and an emetic may prove especially useful. As the pseudo-obstruction syndromes are, individually, rare, and experience with any given prokinetic agent in these disorders limited, it is difficult to develop strict guidelines for their use in this context. It stands to reason that a response to a prokinetic agent would seem unlikely in a patient with an advanced myopathic process; anecdotal evidence suggests, however, that some patients with severe scleroderma may derive some symptomatic improvement. Where oral therapy is tolerated, cisapride would appear the best choice among available agents. When this fails, subcutaneous octreotide may be added or substituted. In the acute situation, intravenous erythromycin may alleviate gastroparesis, but probably exerts little beneficial effect beyond the pylorus; parenteral metoclopramide may be tried, but, here again, convincing evidence of efficacy is lacking. The roles of endoscopy and surgery are largely confined to facilitating nutrition and providing decompression.
对于许多患者而言,营养支持和症状缓解仍是假性肠梗阻的主要治疗目标。总体而言,针对这种病症缺乏特效的药理学药物。鉴于许多现有单一药物的疗效远非理想,一些中心已转向联合治疗。尽管目前尚无对照研究的证据支持这一策略,但至少从理论上讲颇具吸引力,因为这些药物通过多种不同机制发挥作用。促动力药和止吐药联合使用可能尤其有用。由于假性肠梗阻综合征各自都很罕见,且在这些病症中使用任何一种促动力药的经验有限,因此很难制定在此情况下使用它们的严格指南。有理由认为,对于患有晚期肌病性病变的患者,使用促动力药似乎不太可能有效;然而,轶事证据表明,一些重症硬皮病患者可能会有一些症状改善。如果能耐受口服治疗,西沙必利似乎是现有药物中的最佳选择。当这种方法无效时,可以加用或改用皮下注射奥曲肽。在急性情况下,静脉注射红霉素可能会缓解胃轻瘫,但可能对幽门以外的部位几乎没有有益作用;可以尝试胃肠外给予胃复安,但同样缺乏令人信服的疗效证据。内镜检查和手术的作用主要局限于促进营养和进行减压。