Dr. Chadi Aboudan – Gastroenterologist | Montréal, QC

Dr. Chadi Aboudan is a dedicated Gastroenterologist specializing in the diagnosis and treatment of a wide array of disorders affecting the digestive system in adult patients, and may also see older adolescents for certain conditions. Practicing at Hôpital du Sacré Coeur de Montréal in Montréal, QC, he is a key member of the local medical community. In accordance with the standards set by the Collège des médecins du Québec (CMQ), he provides comprehensive care for a wide range of digestive system disorders, including conditions affecting the esophagus, stomach, intestines, liver, and pancreas, utilizing diagnostic and therapeutic endoscopy. His approach emphasizes patient-centered care, ensuring that each individual receives tailored diagnostic assessments and treatment plans in a supportive environment.

Dr. Aboudan holds a Medical Degree from a recognized institution and has accumulated over 1 year of experience practicing as a Gastroenterologist since 2023. He has completed extensive post-graduate training in digestive health care and holds the necessary certifications to practice in Quebec, including licensure from the Collège des médecins du Québec (CMQ). His professional credentials reflect a commitment to maintaining the highest standards of clinical excellence and ongoing medical education.

With a philosophy rooted in evidence-based practice, Dr. Aboudan is dedicated to providing comprehensive patient education on gastrointestinal conditions and lifestyle modifications. He prioritizes early and accurate diagnosis through advanced endoscopic procedures and strives to develop personalized treatment strategies that optimize health outcomes. Fluent in French, he is committed to serving the diverse Montréal community with compassionate, expert care focused on improving digestive health and quality of life.

Dr. Chadi Aboudan diagnoses and treats a wide range of digestive system disorders, including:

Liver, Gallbladder, Bile Duct & Pancreatic Disorders

• Alcohol-Related Liver Disease (ARLD): Liver damage caused by excessive alcohol consumption, ranging from fatty liver and alcoholic hepatitis to advanced cirrhosis.
• Non-Alcoholic Fatty Liver Disease (NAFLD) & Non-Alcoholic Steatohepatitis (NASH): A spectrum of conditions characterized by excessive fat accumulation in the liver not caused by alcohol. NASH involves liver inflammation and cell damage and can progress to cirrhosis.

Esophageal, Stomach & Upper GI Disorders

• Peptic Ulcer Disease (Gastric, Duodenal, H. pylori-related, NSAID-induced): Open sores that develop on the inside lining of the stomach (gastric ulcer) and the upper portion of the small intestine (duodenal ulcer), commonly caused by H. pylori infection or long-term use of nonsteroidal anti-inflammatory drugs (NSAIDs).
• Gastroesophageal Reflux Disease (GERD) / Acid Reflux / Heartburn: Chronic condition where stomach acid frequently flows back into the esophagus, causing heartburn, regurgitation, chest pain, and potential complications like esophagitis.

Small & Large Intestine (Colorectal) Disorders

• Irritable Bowel Syndrome (IBS) - All Subtypes (IBS-D, IBS-C, IBS-M, IBS-U): A common functional gastrointestinal disorder affecting the large intestine, causing symptoms like cramping, abdominal pain, bloating, gas, and changes in bowel habits (diarrhea, constipation, or mixed).
• Microscopic Colitis (Lymphocytic & Collagenous Colitis): Inflammation of the colon that is only visible under a microscope when biopsies are examined, a common cause of chronic watery diarrhea, particularly in older adults.
• Small Intestinal Bacterial Overgrowth (SIBO) & Intestinal Methanogen Overgrowth (IMO): An abnormal increase in the bacterial population in the small intestine, or an overgrowth of methane-producing archaea, leading to symptoms like bloating, gas, abdominal pain, and altered bowel habits.

This list is not exhaustive. For personalized advice regarding your specific digestive condition, please consult with Dr. Chadi Aboudan.

• Chromoendoscopy & Advanced Imaging Techniques (e.g., NBI, FICE): Use of special dye sprays (chromoendoscopy) or electronic light filters (Narrow Band Imaging, Fuji Intelligent Chromo Endoscopy) during endoscopy to enhance visualization of mucosal patterns and improve detection of subtle lesions or precancerous changes.
• Flexible Sigmoidoscopy with Biopsy: Examination of the lower part of the colon (sigmoid colon and rectum) using a flexible sigmoidoscope, often for evaluation of rectal bleeding, diarrhea, or as part of some screening protocols.
• Endoscopic Hemostasis for Acute & Chronic GI Bleeding: Various endoscopic techniques (e.g., injection therapy, thermal coagulation/APC, mechanical clips, hemostatic sprays) used to stop acute or recurrent bleeding from ulcers, varices, angiodysplasias, or tumors in the GI tract.
• Management of Functional Dyspepsia & Functional Abdominal Pain Syndrome: Diagnosis and management of chronic upper abdominal pain or discomfort (dyspepsia) or generalized abdominal pain without an identifiable structural cause, often involving lifestyle, dietary, and neuromodulator therapies.
• Colonoscopy (Screening, Diagnostic, Surveillance) & Polypectomy: Comprehensive examination of the entire colon (large intestine) using a colonoscope to detect and remove precancerous polyps, screen for and diagnose colorectal cancer, evaluate symptoms, and diagnose other colonic conditions like colitis or diverticular disease.
• Screening & Prevention Strategies for Gastrointestinal Cancers: Risk assessment and counseling on screening for colorectal cancer, esophageal cancer (in Barrett's esophagus), gastric cancer, and liver cancer (in cirrhosis), including FIT testing and colonoscopy recommendations.
• Second Opinion Consultations for Complex Digestive Diseases: Providing expert second opinions on challenging or rare gastrointestinal diagnoses, unclear test results, and proposed complex treatment plans, including for IBD, liver disease, and pancreatic disorders.

Note: This list provides a general overview. Specific procedures and treatments are determined after a thorough evaluation. Discuss with Dr. Aboudan for care relevant to your specific condition.

All medical and surgical services (if applicable) are provided in accordance with the standards of practice set by the Collège des médecins du Québec (CMQ) and relevant gastroenterological care guidelines. Contact the clinic or your referring physician regarding new patient intake and referral processes.

Hôpital du Sacré Coeur de Montréal is situated in the Montréal neighborhood of Cartierville North. The hospital is easily accessible via the Major North-South Expressway and Decarie Square (Shopping). Patients can reach the facility conveniently using the Société de transport de Montréal (STM) (Métro, Bus). The hospital's premises are fully wheelchair accessible, ensuring ease of access for all patients. Parking is available at or near the facility, providing convenient options for those arriving by car. The hospital serves as a key medical facility within the region, with specialized units dedicated to advanced digestive health care and endoscopic procedures.

Are consultations and procedures like endoscopies with Dr. Aboudan, a Gastroenterologist, covered by Régie de l'assurance maladie du Québec (RAMQ) in QC?

Medically necessary consultations with a licensed Gastroenterologist like Dr. Aboudan, as well as most diagnostic procedures (e.g., endoscopies for investigating symptoms, biopsies for medical reasons) and treatments for provincially insured digestive conditions (e.g., IBD, celiac disease, screening colonoscopies as per provincial guidelines, liver disease management), are generally covered by Régie de l'assurance maladie du Québec (RAMQ) in QC when a referral from a family doctor or another specialist is in place. Procedures considered purely for screening outside of guidelines, or for non-medical reasons, and some advanced technologies or specific drug therapies might have different coverage. It's crucial to discuss coverage specifics for any proposed treatment or procedure with Dr. Aboudan's office, the hospital/clinic's financial services, or Régie de l'assurance maladie du Québec (RAMQ) beforehand.

Do I need a referral from my family doctor to see Dr. Aboudan, a Gastroenterologist?

Yes, in nearly all cases, a referral from your family physician or another specialist (such as an internist or surgeon) is required to schedule an appointment with a Gastroenterologist like Dr. Aboudan for services covered by the provincial health plan. Gastroenterological issues often require initial assessment and preliminary investigations by your primary care provider. The referral ensures that a specialist consultation is appropriate, helps with prioritizing appointments, and facilitates coordinated care, including the transfer of relevant medical information.

What is generally involved in preparing for a colonoscopy procedure?

Preparing for a colonoscopy is a critical step to ensure the procedure is effective and safe. Dr. Dr. Aboudan's office will provide very specific instructions, which must be followed closely. Typically, preparation involves dietary changes for a few days beforehand (e.g., low-residue diet), followed by a clear liquid diet for the 24 hours prior to the exam. The most important part is the bowel cleansing process, which involves drinking a prescribed laxative solution designed to completely empty and clean your colon. This usually starts the evening before and may continue the morning of the procedure. You'll also need to arrange for transportation home, as sedation is commonly used.

How does a Gastroenterologist like Dr. Aboudan approach the management of Inflammatory Bowel Disease (IBD)?

The management of IBD (Crohn's disease and ulcerative colitis) by a Gastroenterologist like Dr. Aboudan is a highly individualized and long-term process. The primary goals are to induce and then maintain remission (control inflammation), alleviate symptoms, prevent complications, and improve the patient's overall quality of life. Treatment strategies often involve a combination of medications, which can include aminosalicylates (5-ASAs), corticosteroids (for acute flare-ups), immunomodulators (e.g., azathioprine, methotrexate), and increasingly, biologic therapies or small molecule drugs that target specific inflammatory pathways. Regular monitoring through clinical assessment, blood tests, stool tests (like fecal calprotectin), and endoscopic procedures is crucial to track disease activity and adjust treatment as needed. Nutritional counseling and lifestyle advice are also integral parts of comprehensive IBD care.

What's the difference between Irritable Bowel Syndrome (IBS) and Inflammatory Bowel Disease (IBD)? Can Dr. Aboudan diagnose and treat both?

Yes, a Gastroenterologist like Dr. Aboudan can diagnose and treat both IBS and IBD, but they are very different conditions. IBD, which includes Crohn's disease and ulcerative colitis, is characterized by chronic inflammation and physical damage (like ulcers and strictures) to the digestive tract, visible during endoscopy and on biopsies. It's an autoimmune-related condition. IBS, on the other hand, is a functional gut disorder, meaning the GI tract doesn't work correctly, but there's no visible inflammation or damage on standard tests. IBS causes symptoms like abdominal pain, bloating, and altered bowel habits. While IBS can significantly impact quality of life, it doesn't cause the destructive inflammation seen in IBD. Diagnosis involves different criteria and investigations for each.

Hôpital du Sacré Coeur de Montréal
5400 boul Gouin O
Montréal, QC H4J 1C5

Phone: (514) 338-2222 | Fax: (514) 338-3578

The facility is wheelchair accessible.

Dr. Aboudan is a licensed Gastroenterologist regulated by the Collège des médecins du Québec (CMQ) under the Medical Act in QC. A referral from a family physician or appropriate specialist is typically required for consultations with Dr. Aboudan for services covered by the provincial health plan.

Verify registration with the Collège des médecins du Québec (CMQ): https://www.cmq.org/en/directory/physicians?number=19152