370 likes | 410 Views
The Role of the Gastroenterologist in the long term management of inflammatory bowel disease. Prof D BA SILK MD AGAF FRCP Imperial College London St Mary’s Campus. Incidence and prevalence of UC & C rohns D isease. Hospitals serving 250,000 population will look after.
E N D
The Role of the Gastroenterologist in the long term management of inflammatory bowel disease Prof D BA SILK MD AGAF FRCP Imperial College London St Mary’s Campus
Roles of Gastroenterology in Medical Management of IBD • Treatment of active UC • Maintenance of remission in UC • Treatment of active CD • Maintenance of remission in CD • Thiopurines • CRC surveillance • IBD and pregnancy • IBD and stress • IBD and life expectancy
Medical Management of IBD • Achievement of Remission • Maintenance of Remission
Medical Therapy for Active Ulcerative Colitis • 5 ASA • Corticosteroids • Thiopurines • Calcineurin inhibitors (cyclosporin and tacrolimus) • Anti-TNF therapy • Other biological Agents • Probiotics
Management of Ulcerative Colitis • Proctitis • Left sided proctocolitis • Extensive colitis • Severe active ulcerative colitis
Management of Active Proctitis • Mesalazine 1G suppository • Mesalazine enemas • Mesalazine suppository/enema + oral 5ASA • Mesalazine enema + topical steroid enema • Oral prednisolone • Immunosuppressants • Biologics
Management of Active Left Sided Colitis • Mesalazine enema • Oral 5ASA • Mesalazine + topical corticosteroid enema • Oral corticosteroids • IV corticosteroids
Management of Active Extensive Colitis • Oral 5ASA • Oral corticosteroids • Mesalazine enemas • Mesalazine + topical corticosteroids • Thiopurines • Biologics
Severe Active Ulcerative Colitis Bloody diarrhoea > 6/day and any of the following • Tachycardia > 90 bpm • Fever > 37.8o C • Hb < 10.5 g/dl • ESR > 30 mm/h Patients should be admitted under the care of a multidisciplinary team including Specialist gastroenterologist Specialist colorectal surgeon • Intravenous corticosteroids • Rescue therapy (ciclosporin, tacrolumis, infliximeb, considered early (day 3) Management demands careful clinical judgement After Second European evidence based consensus in the diagnosis and management of ulcerative colitis part 2 Current Management. J Crohns and Colitis 2012; 6: 991-1030
Maintenance of Remission – Ulcerative Colitis • Oral 5 ASA therapy 2.4 g/d • Topical 5 ASA 3.0 g/wk • Combination of both • Thiopurines • Early or frequent relapse • Responders to ciclosporin • Responders to anti TNF agents • Anti – TNF therapy • Failure of thiopurines • Responders to anti TNF agents • E coli strain Nissle 1917 • VSL # 3
Comparison of Oral 5ASA Medications MesalazinepH sensitive polymer coating 5 ASA Sulfasalazine Sulfapyridine 5 ASA Balsalazide 4 aminobenzoyl- alanine 5 ASA Olsalazine 5 ASA 5 ASA Diazobond
Formulation release characteristics of mesalazine preparations
BalsalazidevsMesalazine – Maintenance & Remission in UC After Green et al APT 1998; 12: 1207
Gastrointestinal pH profiles in patients with acute pan-ulcerative colitis After Raimundo, Evans, Rogers & Silk 1992
Gastrointestinal pH profiles in patients with ulcerative colitis (in remission)
Effect of 5 ASA use on colorectal cancer (CRC) and dysplasia risk in UC • Use of 5ASA associated with a lower risk of CRC • Use of 5ASA associated with a lower risk of combined endpoint of CRC or dysplasia Velayes et al 2005 Am J Gastro; 100: 1345 - 1353
Medical Management of Crohns Disease • Glucocorticosteroids • Budesonide • 5 ASA agents • Thiopurines • Biological agents
Infliximab-based treatment strategy – The Sonic Trial Patients moderate to severe Crohn’s disease 508 Aza 2.5 mg/kg/d + Placebo + infliximab Aza 2.5 mg/kg/d + Infliximab Placebo infusions (0, 2, 6 then every 8 weeks) (0, 2, 6 then every 8 weeks) 30 weeks 50 weeks End points – primary • Steroid free remission (CDA < 150) • Off steroids > 3 weeks End points – secondary • Mucosal healing
Duration of Thiopurine Therapy in IBD Frazer Orchard & Jewell. Gut 2002; 50:485
Duration of Thiopurine Therapy in IBD Frazer Orchard & Jewell. Gut 2002; 50:485
Problems with Thiopurines • Bone marrow suppression • Lymphoma • Solid tumours • Skin cancer • Hepatitis • Hypersensitivity reactions
Colorectal cancer risk in IBD • Extent histologic inflammation +pseudopolyps • Duration of disease (> 10 yrs) • Long standing extensive colitis (> 10 years disease; > 50% colon affected) • PSC • Colonic strictures Farrge et al. AGA Medical Position Statement Gastroenterology 2010; 138: 738
Surveillance Colonoscopy • Baseline in all patients before 8 yrs disease • Patients with proctitis or proctosigmoiditis not considered at risk for IBD related CRC • All other patients should commence surveillance colonoscopy 1 -2 yrs after base line examination • Frequency dependent upon presence of risk factors ( 1-3 yrs) After AGA Medical Position Statement Gastroenterology 2010; 138: 738
Use of chemo-preventative agents to lower risk of CRC in IBD • Mesalazine >1.2 g/d reduces risk of CRC by 81% p = 0.006 Eaden et al APT 2000 14: 145 • Thiopurines reduce risk of CRC & HGD p = 0.006 Beaugenie et al Gastroenterology 2013l 145: 166 • ? Effect of Biological Agents
How “Fail-Safe” are the Recommendations? Cancers et SorrisqueAssocie aux Maladies Inflammatory Intestinales en France (CESAME) • 19,486 patients with IBD • 38.6% of CRC or HGD developed before 10 yr disease duration Beaugenie et al Gastroenterology 2013l 145: 166
Treatment of IBD in Pregnancy • Majority of drugs used in IBD are safe in pregnancy • Proactive treatment for maintenance of remission advised • Active disease and not therapy pose the greatest risk to the pregnancy Caprille et al Gut 2006;55 (suppl 1): 36-58
Effect of Disease Activity and Treatment of disease on Fertility in Males and Females with IBD After Heetun et al AP & T 2007; 26: 513-533
Effect of Gestation on Course of IBD After Heetun et al AP & T 2007; 26: 513-533
Effect of ulcerative colitis and Crohn’s disease on rates of preterm delivery and low birth weight compared to the general population Norgard et al Am J Gastroenterol. 2000; 95: 1165 -1170 Domintz et al Am J Gastroenterol. 2002; 97: 641 – 648 Fonager et al Am J Gastroenterol. 1998; 93: 2426 - 2430
Chronic stress, adverse life events and depression can cause relapse in patients with IBD Bitton et al Am J Gastro 2003; 98: 2203 Mardini et al Dig Dis Sci 2004; 49: 492 Levenstein et al Am J Gastro 2000; 95: 1213 Effects of stress on inflammation in IBD mediated through changes in • Hypothalamic-pituitary-adrenal function • Bacterial-mucosal flora interactions • Activation of mucosal mast cells • Peripheral release of CRF Symptoms of IBD exacerbated by effects of stress • Gut motility • Fluid secretion After Mandsky & Rampton Gut 2005; 54: 481
Predicting Relapse in Crohn’s Disease 101 Patients in Remission 14 Withdrew 37 Relapsed Risk Factors for Flare Up p value CRP 0.007 Fistulising Disease 0.04 Colitis 0.02 Perceived stress 0.0006 Low levels of stress and low avoidance behaviour had sustained remission (85% at 1 yr) After Bitton et al Gut 2008; 17: 1386
Multidisciplinary, patient focused IBD Clinics in Secondary Care Consultant Gastroenterologist Clinical Nurse Specialist Dietitian Clinical Psychologist Silk 2013