Inflammatory Bowel Disease in Young Adult

Inflammatory bowel disease is a chronic inflammatory disease that consist of Crohn’s disease and ulcerative colitis. A dramatic increase in the prevalence if inflammatory bowel disease (IBD) within developing countries including in Asia makes IBD a substantial global medical burden and modern refractory disease, and it is imperative that Asian healthcare systems especially physician are aware of this and familiar with the clinical manifestation and management. The aim of this case report is to present a case of IBD in young adult in Indonesia. Patient came with complaint of chronic diarrhea and had seen multiple doctor without improvement. Inflammatory bowel disease should always be considered in patient with chronic diarrhea with or without extraintestinal manifestation especially after poor response of usual antidiarrheal medication. Diagnosing of IBD is based on clinical manifestation, physical examination, laboratory result and endoscopy. Until now, ileocolonoscopy and biopsy is the most accurate diagnostic modality for IBD and can be used to differentiate between ulcerative colitis and Crohn’s disease. Treatment of IBD are drugs such as mesalazine until surgery based on the severity or complication of disease.


INTRODUCTION
Inflammatory bowel disease (IBD) is a chronic inflammatory disease that involves the gastrointestinal tract and resulted from combination of genetic susceptibility, environmental exposure and dysregulated response to intestinal microbiota with an alternating relapsing and remitting clinical progression. 1,2nflammatory bowel disease consist of Crohn's disease (CD) and ulcerative colitis (UC). 1 Ulcerative colitis is restricted to the mucosa of the colon, whereas the lesions in CD are often discontinuous, occur across the entire wall of the organ (transmural), and involve any part of the gastrointestinal tract from mouth to anus. 3 The highest occurrence of IBD is seen in developed countries in North America and Europe, affecting up to 0.5% of the general population. 1 Other than developed countries, developing countries such as countries in Asia has also been experiencing IBD. 1 Ng et al state that in the past two decades, Asia has been experiencing a significant increase in IBD incidence with highest prevalence in East and South Asia. 1 In 2012, incidence rate in Indonesia for UC is 0.55 per 100,000 persons and CD 0.33 per 100,000 persons.A dramatic increase in the prevalence if IBD within developing countries including in Asia makes IBD a substantial global medical burden and modern refractory disease, and it is imperative that Asian healthcare systems especially physician are aware of this and familiar with the clinical manifestation and management. 1,2The aim of this case report is to present a case of IBD in young adult in Indonesia.

CASE ILLUSTRATION
A sixteen year old boy came to the hospital with chief complaint of diarrhea for 2 months.The characteristic of diarrhea was porridge-like to liquid, around 3 to 5 times a day, yellowish, with no blood.There was no fever, but patient complaint of epigastric pain with slight nausea and no vomiting.He lost his appetite and admit to lost 20 kilograms in 2 months.He is underweight.He already seen multiple doctors beforehand and was diagnosed with gastroenteritis and antibiotic, probiotic and anti-diarrhea was given but there was no improvement (diarrhea and weight loss persist).Around a month before, he complained of pain in his perianal region and felt a lump in his perianal region.No joint pain, joint swelling, erythema or red eyes and blurry vision.There was no family history of similar disorder, atopy, drug abuse and sexual activity.
At admission, the patient malnourished with normal vital sign.Bowel sound was increased with no abdominal tenderness.We found perianal abscess.Other physical sign were normal.
Stool analysis revealed sign of gastrointestinal infection with occult blood test positive.Colonoscopy showed perianal abscess with internal hemorrhoid grade I-II, hyperemia, erosion and superficial ulcers in most mucosal parts of rectum to caecum, mucosa of ileum terminalis appears normal with conclusion of suggestive ulcerative colitis (Figure 1).Colon biopsy was performed in several parts and revealed irregular superficial epithelium with multiple erosive and ulcerative tissue, hyperemic lamina propria with multiple chronic and acute inflammatory cells, distorted crypts and multiple crypt abscess, which disclosed as active chronic colitis with crypt destruction and no sign of malignancy.This findings can be found in IBD.
Based on the data above, diagnosis was made, which is inflammatory bowel disease (ulcerative colitis), iron deficiency anemia and malnutrition.He was then given ringer lactate 1500cc/24 hour, levofloxacin 1 x 750 mg IV, mesalazin 500 mg three times daily orally, methylprednisolone 125 mg once daily IV, rebamipide 100 mg three times daily, PPI two times daily IV, iron supplement 2 times daily orally, folic acid mg two times daily orally, and antiemetic.Parenteral nutrition of 1440 kkal/day was given.Patient was consulted with surgeon and absess was incised and drainage.
The operation was uneventful and patient went home with mesalazine 3 x 500 mg, methylprednisolone 2 x 4 mg, rebamipide 3 x 100 mg, iron supplement 1 x 1 and folic acid 2 x 5 mg.He came back to us one week later and his symptoms was getting better with complained of diarrhea around 1-2 times a day.Reevaluation of therapy was planned to be performed after one week.

DISCUSSION
This case report present a case of male young adult with IBD.It took two months until the patient was diagnosed with IBD.This is probably due to unfamiliarity of IBD in Indonesia.The diagnosis of IBD is achieved by combining clinical, laboratory, endoscopic, histological, and radiological findings. 4utoimmune are widely considered as the cause of IBD, as most patient with IBD has a individual or family history of vasculitis or systemic lupus erythematosus. 2 Nevertheless, recent studies stated that IBD resulted from combination of genetic susceptibility, environmental exposure and dysregulated response to intestinal microbiota. 1,2In this case, the patient did not have an individual nor family history of autoimmune disease, but IBD should still be considered as it could be result from combination of genetic and environment.
Inflammatory bowel disease can present as bloody diarrhea, vague abdominal pain, diarrhea, unexplained anemia, fever, weight loss, or growth retardation, with bloody diarrhea as the most common presenting symptom in UC (in 50% patient). 5In this patient, patient came with chronic diarrhea, abdominal pain, mild nausea, weight loss with perianal abscess.Perianal disease (PAD) in IBD has always been linked to CD and can be present in 26% of CD patients. 6Contrary to that, recent study by Yabana et al. stated that around 5% patient with UC may develop PAD and suggest that UC patient with PAD should be given steroid, because PAD indicating more severe or persistant rectal inflammation. 6Extraintestinal manifestation of IBD can affect joint, skin, eyes, such as peripheral arthritis, erythema nodosum, and episcleritis. 7Patient didn't complain of extraintestinal manifestation and this is probably due to according to Levine et al, extraintestinal manifestations may present at diagnosis only in 6% to 23% of children with a higher frequency in those more than six years. 5ultiple laboratory tests may be abnormal in IBD.These patient usually have decreased hemoglobin or elevated total white cell count and platelet count, and high inflammatory markers, such as CRP and ESR that reflect systemic patient responses. 4,5Patient usually has low serum albumin that indicate protein losing enteropathy. 5This patient has microcytic hypochromic anemia, leukocytosis and thrombocytosis with high ESR and CRP.Other than that, patient also has hipoalbuminemia.All of these findings fit the description of laboratory test in IBD patients.(a,b,c,d,e,f: ulcerative colitis; g,h Adolescents stated that fecal calprotectin is a more sensitive tool for diagnosis of IBD than inflammatory markers such as CRP and ESR. 5 Calprotectin is a calcium and zinc binding protein mostly derived from neutrophils and monocytes. 4It has been shown to be a reliable marker for assessing IBD disease activity and in predicting mucosal healing and risk of relapse. 8In this patient, his fecal calprotectin is very high ( > 2100 (< 50)) that stated there is intestinal inflammation. 5tool analysis revealed sign of gastrointestinal infection with occult blood test positive, that fit the description of IBD.

Revised Porto Criteria for the Diagnosis of Inflammatory Bowel Disease in Children and
In recent years, Ileocolonoscopy (and biopsies) is the most essential part of the diagnostic workup in pediatric IBD and essential in differentiating UC from CD. 4,5,9 The most reliable feature to diagnose UC is continuous mucosal inflammation of the colon, starting from the rectum, without small bowel involvement, and without granulomas on biopsy. 5Colonoscopy in this patient showed perianal abscess with internal hemmorhoid grade I-II, hyperemia, erosion and superficial ulcers in most mucosal parts of rectum to caecum, mucosa of ileum terminalis appears normal with conclusion of suggestive ulcerative colitis.
Colon biopsy revealed irregular superficial epithelium with multiple erosive and ulcerative tissue, hyperemic lamina propria with multiple chronic and acute inflammatory cells, distorted crypts and multiple crypt abscess, which disclosed as active chronic colitis with crypt destruction and no sign of malignancy.Disturbed crypt architecture, cryptitis and crypt abscess are signs of chronicity. 5n a country with tuberculosis is endemic, possibility of intestinal tuberculosis (ITB) should be considered.ITB and IBD are chronic granulomatous disorders with phenotypic similarities that make the differentiation between them a challenging task.ITB is characterized by numerous large, well-defined granulomas, especially in the submucosa and in the granulation tissue around the ulcers, often with casseation and confluence.TB granulomas has more than four sites of granulomatous inflammation per site, caseation and a band of epitheloid histiocytes in ulcer bases and location of granulomas in the caecum.The granuloma in IBD are fewer, smaller, never confluent or caseating and seldom found in the submucosa. 10ther modalities that can be used is ultrasound.Ultrasound detects, locates, and characterizes inflammation of the bowel wall and assesses periintestinal abnormalities, with a good negative predictive value for IBD. 5 Magnetic resonance imaging (MRI) can estimate both the extent of intestinal inflammation and the degree of damage (stricturing or penetrating disease). 5edication and surgery could be used in managing IBD. 8 Generally, a step-up approach, in which a conventional therapy is added if first-line treatment is ineffective, has been preferred for many years. 8owever, studies have shown that a top-down approach, in which a potent agent is started at the early stage of the disease, may be associated with reduced hospitalization and surgeries in IBD patients.5-Aminosalicylic Acid (5-ASA/Mesalazine) are firstline treatment for the induction and maintenance of remission in mild to moderate UC. 8 Corticosteroid is effective in acute patient. 8orticosteroid oral such as prednisone and methylprednisolone or corticosteroid enema should be given.In severe case, corticosteroid parenteral should be given.Budesonide orally or enema is a nonsystemic glucocorticoid that have minimal systemic effect with high concentration in intestinal that could be used.Mean dosage use until remission is achieved is usually 40-60 mg prednisone with tapering dose after remission achieved in 8 to 12 weeks. 11mmune-modifying agents such as 6-mercaptopurine or azathioprine is used in approximately 6% of cases, with only 1% of patients receiving methotrexate. 8his low use of immune-modifying agents is likely to be due to the risk of severe adverse effects and the requirements for blood test monitoring. 8Known adverse events of this medication include leucopenia and transaminases increase, allergic reactions, mild (nausea and dyspepsia) or severe (acute pancreatitis) gastrointestinal adverse effects, increased risk of or non-melanoma skin cancer. 8ebamipide is an amino acid derivative of 2 (1H)-guinoinone that is a gastric mucosal protective and ulcer-healing agent.Rebamipide is proven to be useful and safe in patient with IBD especially in corticosteroid-refractory patient. 12Furuta et al conducted a clinical trial with 21 patient with IBD.It was found that rectal administration of rebamipide twice a day for 3 weeks led to clinical remission for 53% patient with no side effect.This is due to antiinflammatory activity that rebamipide has. 13Other than that, rebamipide healed intestinal injury by enchancing the migration of intestinal epithelial cells. 14atient was given mesalazine and corticosteroid with other supportive treatment and showed positive effect.The international consensus group recommended that disease activity be reassessed at three to six after the start of therapy in UC with colonoscopy. 9Spiceland stated that patients with IBD have an increased risk of developing colorectal cancer compared to the general population, therefore, surveillance endoscopy has been recommended in patients with IBD beginning eight years after diagnosis. 9nflammatory bowel disease should always be considered in patient with chronic diarrhea with or without extraintestinal manifestation especially after poor response of usual antidiarrheal medication.Ileocolonoscopy and biopsy is the most accurate diagnostic modality for IBD with other helpful modalities such as laboratory, stool and imaging test.Treatment of IBD are drugs such as mesalazine until surgery based on the severity or complication of disease.