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Nonalcoholic Steatohepatitis (Nash)

Nonalcoholic Steatohepatitis (NASH) is a progressive fatty liver disease marked by inflammation and scarring in individuals who consume minimal alcohol. Without timely intervention, NASH can lead to serious liver damage. Discover specialized diagnosis, personalized treatment and lifestyle strategies in Houston.

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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 NASH?

Nonalcoholic Steatohepatitis (NASH) is a form of fatty liver disease in which excess fat buildup in the liver leads to inflammation, liver cell damage, and scarring. It occurs in people who drink little to no alcohol. If left untreated, NASH can progress to cirrhosis and liver failure. Early detection and lifestyle changes can halt or reverse disease progression.

Common Causes and Risk Factors

  • Obesity or rapid weight gain
  • Type 2 diabetes or prediabetes
  • High cholesterol or elevated triglycerides
  • Metabolic syndrome (a cluster of conditions)
  • Polycystic ovary syndrome (PCOS)
  • Certain medications, such as steroids

Common Symptoms

  • Often no symptoms in early stages
  • Feeling tired or weak
  • Mild discomfort or pain in the upper right abdomen
  • Unintentional weight loss
  • Elevated liver enzymes on blood tests

How Dr. Rishi Chadha Diagnoses Nonalcoholic Steatohepatitis (NASH)

1. Medical History & Physical Exam

Dr. Chadha reviews your personal and family medical history, alcohol use, medications, and risk factors�then performs a targeted physical exam.

2. Blood Tests

We measure liver enzymes and other blood markers to assess liver function and rule out alternate causes of liver injury.

3. Imaging Studies

  • Ultrasound: Evaluates fat accumulation and liver texture.
  • FibroScan� (Transient Elastography): Measures liver stiffness and quantifies fat content.

4. Noninvasive Scoring

Dr. Chadha applies validated scoring systems (e.g., NAFLD Fibrosis Score) to estimate the degree of liver scarring.

5. Liver Biopsy (When Needed)

In uncommon or uncertain cases, a liver biopsy provides definitive grading of inflammation and fibrosis.

Dr. Rishi Chadha
Treatment

Our Houston team offers a full range of care for fatty liver disease.

1. Lifestyle and Diet Modifications

  • Lose weight slowly � aim for 5�10% of your body weight
  • Adopt a Mediterranean-style diet (fruits, vegetables, whole grains, healthy fats)
  • Avoid sugar and processed foods
  • Exercise at least 150 minutes per week

2. Medications

  • No FDA-approved drug for NASH yet; Vitamin E may be recommended in select cases
  • Medications to manage type 2 diabetes or high cholesterol
  • Assistance finding and enrolling in clinical trials

3. Minimally Invasive or Advanced Procedures

  • Noninvasive liver monitoring with FibroScan�
  • Referral to a weight-loss specialist when appropriate
  • Coordination with a liver transplant team if cirrhosis develops
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 is NASH?

Nonalcoholic Steatohepatitis (NASH) is a form of fatty liver disease not caused by alcohol. Fat builds up in the liver, leading to inflammation, cell damage, and scarring.

What causes NASH?

Key risk factors include obesity or rapid weight gain, type 2 diabetes or prediabetes, high cholesterol or triglycerides, metabolic syndrome, PCOS, and certain medications (e.g., steroids).

What are the symptoms?

Many people have no symptoms. Others may experience fatigue, mild pain in the upper right abdomen, unplanned weight loss, or elevated liver enzymes on blood tests.

What is the ICD-10 code for NASH?

The ICD-10 code for Nonalcoholic Steatohepatitis is K75.81.

How is NASH different from simple fatty liver?

Simple fatty liver (NAFL) involves fat accumulation without damage. NASH includes inflammation and scarring, increasing the risk of progression to cirrhosis.

Can NASH be reversed?

Yes�when caught early, NASH can be halted or even reversed through gradual weight loss (5�10% of body weight), a healthy diet, and regular exercise.

What tests are used to diagnose NASH?

Diagnosis may involve blood tests for liver enzymes, ultrasound or FibroScan� to assess fat and stiffness, noninvasive scoring systems, and'rarely�a liver biopsy.

What foods should I avoid with NASH?

Avoid sugary drinks, processed foods, refined carbohydrates (white bread, pastries), and snacks high in added sugars and unhealthy fats.

Do I always need a liver biopsy?

No. Dr. Chadha begins with noninvasive tests and uses biopsy only when results are unclear or advanced liver scarring is suspected.

How do I get expert NASH care in Houston?

Call GastroDoxs to schedule a consultation with Dr. Rishi Chadha. He'll create a personalized liver-health plan tailored to your needs.

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