K21.0

Clinical Causes: Weakening of the lower esophageal sphincter (LES) which normally prevents stomach acid from refluxing. Hiatal hernia, a condition where part of the stomach pushes up through the diaphragm into the chest cavity. Obesity, increasing abdominal pressure and promoting reflux. Pregnancy, which can cause hormonal changes and increase abdominal pressure. Certain foods and beverages such as spicy foods, fatty meals, chocolate, caffeine, and alcohol. Smoking, which can impair the functioning of the LES. Delayed gastric emptying, leading to increased stomach pressure and reflux. Certain medications like calcium channel blockers, sedatives, or antidepressants that may relax the LES.

Key Symptoms: Persistent heartburn, often after eating or at night. Regurgitation of sour or bitter-tasting acid into the throat or mouth. Difficulty swallowing or a sensation of a lump in the throat. Chest pain that may mimic heart-related issues. Chronic cough, especially at night or after meals. Hoarseness or sore throat caused by acid reaching the vocal cords. Nausea or a feeling of fullness in the stomach. In more severe cases, bleeding, which may lead to anemia.

Diagnosis Path: Endoscopy, where a thin tube with a camera is inserted into the esophagus to visualize inflammation or damage. Ambulatory pH monitoring, measuring acid levels in the esophagus over 24-48 hours. Esophageal manometry, assessing esophageal muscle function and LES pressure. Barium swallow X-ray, which provides images of the esophagus during swallowing to detect abnormalities.

Treatment Protocols: Lifestyle changes such as losing weight, elevating the head of the bed, eating smaller meals, and avoiding trigger foods. Medications like antacids to neutralize stomach acid, H2 receptor blockers to reduce acid production, and proton pump inhibitors (PPIs) for more effective acid suppression. Prokinetic agents that help strengthen the LES and improve gastric emptying (used selectively). Surgical options such as fundoplication, which reinforces the LES, may be considered for severe or refractory cases. Endoscopic procedures, which are minimally invasive techniques designed to strengthen the LES or address structural issues.