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Mak JWY, Tang W, Yip TCF, Ran ZH, Wei SC, Ahuja V, Kumar S, Leung WK, Hilmi I, Limsrivilai J, Aniwan S, Lam BCY, Chan KH, Ng KM, Leung CM, Li MKK, Lo FH, Sze ASF, Tsang SWC, Hui AJ, Hartono JL, Ng SC. Stopping anti-tumour necrosis factor therapy in patients with perianal Crohn's disease. Aliment Pharmacol Ther 2019; 50:1195-1203. [PMID: 31638274 DOI: 10.1111/apt.15547] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2019] [Revised: 09/16/2019] [Accepted: 09/29/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND Little is known of the outcome of patients with perianal Crohn's disease after stopping anti-tumour necrosis factor (TNF) therapy. AIM To evaluate the rate of relapse in perianal Crohn's disease (CD) after stopping anti-TNF therapy. METHODS Consecutive perianal CD patients treated with anti-TNF therapy with subsequent discontinuation were retrieved from prospective inflammatory bowel disease database of institutes in Hong Kong, Shanghai, Taiwan, Malaysia, Thailand and Singapore from 1997 to June 2019. Cumulative probability of perianal CD relapse was estimated using Kaplan-Meier method. RESULTS After a median follow-up of 89 months (interquartile range [IQR]: 65-173 months), 44 of the 78 perianal CD patients (56.4%) relapsed after stopping anti-TNF, defined as increased fistula drainage or recurrence of previously healed fistula, after stopping anti-TNF therapy. Cumulative probabilities of perianal CD relapse were 50.8%, 72.6% and 78.0% at 12, 36 and 60 months, respectively. Younger age at diagnosis of CD [adjusted hazard ratio (HR): 1.04; 95% CI 1.01-1.09; P = .04] was associated with a higher chance of perianal CD relapse. Among those with perianal CD relapse (n = 44), retreatment with anti-TNF induced remission in 24 of 29 patients (82.8%). Twelve (27.3%) patients required defunctioning surgery and one (2.3%) required proctectomy. Maintenance with thiopurine was not associated with a reduced likelihood of relapse [HR = 1.10; 95% CI: 0.58-2.12; P = .77]. Among the 17 patients who achieved radiological remission of perianal CD, five (35.3%) developed relapse after stopping anti-TNF therapy after a median of 6 months. CONCLUSIONS More than half of the perianal CD patients developed relapse after stopping anti-TNF therapy. Most regained response after resuming anti-TNF. However, more than one-fourth of the perianal CD patients with relapse required defunctioning surgery. Radiological assessment before stopping anti-TNF is crucial in perianal CD.
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Mak WY, Mak OS, Lee CK, Tang W, Leung WK, Wong MTL, Sze ASF, Li M, Leung CM, Lo FH, Lam BCY, Chan KH, Shan EHS, Tsang SWC, Hui AJ, Chow WH, Chan FKL, Sung JJY, Ng SC. Significant Medical and Surgical Morbidity in Perianal Crohn's Disease: Results from a Territory-Wide Study. J Crohns Colitis 2018; 12:1392-1398. [PMID: 30165543 DOI: 10.1093/ecco-jcc/jjy120] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
BACKGROUND The presence of perianal fistulas in Crohn's disease [CD] denotes increased disease aggressiveness. We studied the epidemiology and clinical outcomes of perianal CD [PCD] using the Hong Kong territory-wide IBD Registry [HKIBDR]. METHODS Consecutive patients with PCD were identified from the HKIBDR, and disease characteristics, treatments, and outcomes were analysed. The risks for medical and surgical therapies were assessed using Kaplan-Meier analysis. RESULTS Among 981 patients with CD with 10530 patient-years of follow-up, 283 [28.8%] had perianal involvement, of which 120 [42.4%] were as first presentation. The mean age at diagnosis of PCD was 29.1 years, and 78.8% were male. The median follow-up duration was 106 months (interquartile range [IQR]: 65-161 months]. Perianal fistula [84.8%] and perianal abscess [52.7%] were the two commonest forms. Male, younger age at diagnosis of CD, and penetrating phenotypes were associated with development of PCD in multivariate analysis. Of 242 patients with fistulizing PCD, 70 [29.2%] required ≥5 courses of antibiotics, and 98 [40.5%] had ≥2 surgical procedures. Nine patients required defunctioning surgery and 4 required proctectomy. Eighty-four patients [34.7%] received biologics. Cumulative probabilities for use of biologics were 4.7%, 5.8%, and 8.6% at 12 months, 36 months, and 96 months, respectively, while the probabilities for surgery were 67.2%, 71.6%, and 77.7%, respectively. Five mortalities were recorded, including 2 cases of anal cancer, 2 CD-related complications, and one case of pneumonia. CONCLUSION Over 40% of CD patients presented with perianal disease at diagnosis. Patients with PCD had poor outcome, with young age of onset, multiple antibiotic use, and repeated surgery.
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Affiliation(s)
- Wing Yan Mak
- Department of Medicine and Therapeutics, Institute of Digestive Disease, State Key Laboratory of Digestive Disease, LKS Institute of Health Science, The Chinese University of Hong Kong, Hong Kong
| | - Oi Sze Mak
- Department of Surgery, The Chinese University of Hong Kong, Prince of Wales Hospital, Hong Kong
| | - Choon Kin Lee
- Department of Medicine and Therapeutics, Institute of Digestive Disease, State Key Laboratory of Digestive Disease, LKS Institute of Health Science, The Chinese University of Hong Kong, Hong Kong.,Gastroenterology Unit, Department of Medicine, Hospital Pulau Pinang, Pulau Pinang, Malaysia
| | - Whitney Tang
- Department of Medicine and Therapeutics, Institute of Digestive Disease, State Key Laboratory of Digestive Disease, LKS Institute of Health Science, The Chinese University of Hong Kong, Hong Kong
| | - Wai Keung Leung
- Department of Medicine, University of Hong Kong, Queen Mary Hospital, Hong Kong
| | - Marc T L Wong
- Department of Medicine and Geriatrics, Princess Margaret Hospital, Hong Kong
| | | | - Michael Li
- Department of Medicine and Geriatrics, Tuen Mun Hospital, Hong Kong
| | - Chi Man Leung
- Department of Medicine, Pamela Youde Nethersole Eastern Hospital, Hong Kong
| | - Fu Hang Lo
- Department of Medicine and Geriatrics, United Christian Hospital, Hong Kong
| | - Belsy C Y Lam
- Department of Medicine and Geriatrics, Kwong Wah Hospital, Hong Kong
| | - Kam Hon Chan
- Department of Medicine, North District Hospital, Hong Kong
| | | | | | - Aric J Hui
- Department of Medicine, Alice Ho Miu Ling Nethersole Hospital, Hong Kong
| | - Wai Hung Chow
- Department of Medicine, Yan Chai Hospital, Hong Kong
| | - Francis K L Chan
- Department of Medicine and Therapeutics, Institute of Digestive Disease, State Key Laboratory of Digestive Disease, LKS Institute of Health Science, The Chinese University of Hong Kong, Hong Kong
| | - Joseph J Y Sung
- Department of Medicine and Therapeutics, Institute of Digestive Disease, State Key Laboratory of Digestive Disease, LKS Institute of Health Science, The Chinese University of Hong Kong, Hong Kong
| | - Siew C Ng
- Department of Medicine and Therapeutics, Institute of Digestive Disease, State Key Laboratory of Digestive Disease, LKS Institute of Health Science, The Chinese University of Hong Kong, Hong Kong
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