预后取决于病因。糖尿病和术后胃轻瘫是慢性过程。对大多数患者来说,通过正确联合使用促胃动力药、止吐药、营养支持和严格控制糖尿病患者血糖,症状可得到良好控制。一些患者对该治疗方法无效,因难治性恶心、呕吐、脱水和营养不良而反复入院治疗。特发性或病毒感染后胃轻瘫的患者可有相似的临床过程;然而,在几个月或是几年后,有潜在痊愈和胃功能正常化的可能。[101]Tack J. Gastric motor disorders. Best Pract Res Clin Gastroenterol. 2007;21:633-644.http://www.ncbi.nlm.nih.gov/pubmed/17643905?tool=bestpractice.com[102]Lacy BE, Weiser K. Gastrointestinal motility disorders: an update. Dig Dis. 2006;24:228-242.http://www.ncbi.nlm.nih.gov/pubmed/16849850?tool=bestpractice.com[103]Thorn AR. Not just another case of nausea and vomiting: a review of postinfectious gastroparesis. J Am Acad Nurse Pract. 2010;22:125-133.http://www.ncbi.nlm.nih.gov/pubmed/20236395?tool=bestpractice.com胃轻瘫患者的总生存率似乎比根据他们年龄和性别预计的寿命要低。[104]Jung HK, Choung RS, Locke GR 3rd, et al. The incidence, prevalence, and outcomes of patients with gastroparesis in Olmsted County, Minnesota, from 1996 to 2006. Gastroenterology. 2009;136:1225-1233.http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2705939/http://www.ncbi.nlm.nih.gov/pubmed/19249393?tool=bestpractice.com