期刊
EXPERIMENTAL AND THERAPEUTIC MEDICINE
卷 4, 期 1, 页码 99-104出版社
SPANDIDOS PUBL LTD
DOI: 10.3892/etm.2012.545
关键词
ulcerative colitis; calcineurin inhibitor; cyclosporin A; tacrolimus; colectomy
Calcineurin inhibitors (CNIs) such as cyclosporin A (CSA) and tacrolimus (FK506) are efficacious in patients with steroid-refractory or steroid-dependent ulcerative colitis (UC). We retrospectively investigated patients with refractory UC treated with CNIs 10 elucidate the prognostic factors for a colectomy. Data from 59 patients (35 men and 24 women) were analyzed. CSA and FK506 were administered by intravenous infusion and peroral administration, respectively. The efficacy of the CNIs was assessed using Seo's complex integrated disease activity index. Categorical data analyses were also conducted. The results revealed that the response rates for GSA and FK506 were similar (GSA, 66.6%; FK506, 63.6%). However, oral FK506 had a slower onset of action than intravenous GSA. The risk factors for CNI non-responsiveness were: i) more than 10,000 mg of prednisolone used prior to CNI treatment; and ii) positivity for cytomegalovirus antigenemia (C7-HRP). The factors affecting the rate of colectomy were: i) CNI non-responsiveness; ii) more than 10,000 mg of prednisolone used prior to the initiation of CNI treatment; and iii) positivity for C7-HRP. The addition of azathioprine (AZA) following CNI treatment significantly reduced the incidence of colectomy. Our results revealed the prognostic factors affecting the efficacy of CNI therapy and the need for colectomy in patients with refractory UC. Importantly, some of these factors may be obtained prior to or shortly following the start of CNI treatment. Furthermore, AZA is an important agent for averting colectomy once a patient responds to CNIs.
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