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Colitis Gastroenterologist - Dr. Rishi Chadha

Learn how to deal with colitis and get comprehensive support and evidence-based advice in managing colitis with Dr. Rishi Chadha of GastroDoxs. Discover personalized life changing advice, medical treatments and sophisticated procedures that are aimed to help. Find quality services and individual attention to your needs in Houston.

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Texas Medical Board
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Rishi Chadha

About the Expert

Dr. Rishi Chadha, MD is a board‑certified gastroenterologist who specializes in preventive gastroenterology, colorectal cancer screening, and minimally invasive endoscopic procedures. He completed his fellowship at Sunrise Health GME in Las Vegas and previously trained in internal medicine at St. Vincent’s Medical Center in Connecticut.

What Is Colitis?

Colitis is inflammation of the colon (large intestine), and it may result in abdominal pain, diarrhea and bleeding of the rectum. One of them is ulcerative colitis, which usually covers rectum and lower colon. The unspecified ulcerative colitis in ICD-10 is coded K51.9.

Common Causes and Risk Factors

  • Genetics: A family history of colitis or inflammatory bowel disease.
  • Immune response: An overactive immune system attacking healthy colon tissue.
  • Environment: Diet, stress and imbalances in gut bacteria.
  • Age: Symptoms often begin between ages 15 and 35.
  • Other factors: Infections or adverse reactions to certain medications.

Signs and Symptoms

  • Abdominal pain and cramping
  • Frequent, urgent diarrhea'sometimes with blood
  • Unintended weight loss and poor appetite
  • Fatigue and low energy levels
  • Fever during active flares

How Dr. Rishi Diagnoses Colitis

Dr. Rishi uses a thorough, step-by-step approach:

Medical History and Physical Exam

He examines your symptom patterns, family history, use of medication, and other risk factors.

Laboratory Tests

Blood tests to check anemia, inflammatory (CRP, ESR), and nutritional deficiencies. Stool analysis eliminates infection and identifies occult blood.

Endoscopic Evaluation

  • Colonoscopy: Direct visualization of the colon lining and targeted biopsies for histologic confirmation.
  • Flexible sigmoidoscopy: A shorter scope exam to quickly assess rectum and lower colon when appropriate.

Imaging Studies

  • CT or MRI enterography: Detailed cross-sectional views of the bowel wall and surrounding tissues.
  • Abdominal ultrasound: Non-invasive assessment of bowel wall thickness and vascularity.

Nutritional Assessment

Biomedical screening of vitamin or mineral depletion and personalized meal planning by a dietitian.

Rishi Chadha
Treatment

Our Houston team offers a full range of care for colitis.

1. Change in lifestyle and Diet

  • Individualized 7-day ulcerative colitis diet.
  • The low-residue foods, low-fiber foods on flare-ups.
  • Healthy Fats and Lean protein diet.
  • Reductions to stress such as yoga or counseling.

2. Medications

  • Aminosalicylates to address inflammation.
  • Short term exacerbation control on corticosteroids.
  • Immunomodulators (e.g., azathioprine) to restrain immune hyperactivity.
  • Inflammatory Case Moderate to severe (e.g., infliximab) biologics.

3. Minimally Invasive or Advanced Procedures

  • Endoscopic treatment of bleeding or stricture.
  • Balloon dilation of colon constrictions.
  • Only as a last resort and after failure of drugs and less invasive procedures to manage symptoms does one refer to surgery.
Rishi Chadha

About the Author

Dr. Rishi Chadha, MD is a board‑certified gastroenterologist who specializes in preventive gastroenterology, colorectal cancer screening, and minimally invasive endoscopic procedures. He completed his fellowship at Sunrise Health GME in Las Vegas and previously trained in internal medicine at St. Vincent’s Medical Center in Connecticut.

Frequently Asked Questions

What are the causes of ulcerative colitis?

It is a mixture of a genetic predisposition, excessive response of the immune system, and the environment (diet and gut bacteria).

What is the rate of response to medication in ulcerative colitis?

Most patients have reported an improvement in symptoms in 2-4 weeks when the therapy begins although response differs.

Ulcerative colitis ICD-10 K51.9: What does it mean?

It is the medical coding name - unspecified ulcerative colitis, - appearing in health records and health-related billing.

Is diet sufficient to treat colitis?

Dietary changes are effective in the management of the symptoms but a majority of the patients need medication to develop and sustain the remission.

What is a 7 day meal plan of ulcerative colitis?

An integrative 7-day meal plan is offered individually by Dr. Chadha upon your visit to GastroDoxs.

Indication to operate on ulcerative colitis?

The surgery is discussed in case medications and endoscopic procedures cannot control the symptoms or do not present any complications.

Does GastroDoxs adhere to Crohn and Colitis Foundation?

Yes. We are following the current evidence-based practice guidelines of the Foundation.

Is it safe to take biologic medications on a long-term basis?

Biologics may be safe and long term when they are regularly observed concerning infections, antibodies and side effects.

What are the preparation requirements in a colonoscopy?

You will be placing on a clear-liquid diet and a bowel pre-surgery regimen on the day before the operation.

What are the steps I follow to make an appointment with Dr. Chadha in Houston?

You can make appointments by calling our office or by making appointments online to make your appointment at one of our Montrose, Memorial City or Sugar Land offices.

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