Gastroesophageal Reflux Disease (GERD): Symptoms, Causes & Treatment

Gastroesophageal Reflux Disease (GERD) is a common health condition that occurs when stomach acid frequently flows back into the esophagus (food pipe), causing troublesome symptoms ranging from mild heartburn to severe chest pain. The esophagus is a muscular tube that carries food from the mouth to the stomach. Between the esophagus and stomach is a valve called the lower esophageal sphincter (LES), which is responsible for preventing stomach contents from backing up. When this valve weakens or fails to close properly, it allows acid to flow into the esophagus.

Reflux disease is very common worldwide, affecting approximately 20% of the population in developed countries, and similar rates in the Middle East, including Jordan. The condition may be occasional (rare episodes) or chronic, requiring ongoing medical monitoring. Most people can manage it through lifestyle changes and simple medications, but some severe cases may require more advanced interventions.

It is important to understand that GERD is not merely a simple dietary problem, but a functional disorder of the digestive system that can lead to complications if left untreated over the long term.

Symptoms of GERD range from mild to severe and vary from person to person. Some people experience occasional mild symptoms, while others suffer daily symptoms that significantly impact quality of life. Symptoms often worsen at night or after fatty or large meals. Men and women may experience symptoms differently, particularly during pregnancy in women, where symptoms tend to be more severe.

• Heartburn: A burning sensation in the chest behind the breastbone, especially after eating or when lying down.
• Acidic or bitter taste regurgitation into the mouth: Sour or bitter taste sensation in the mouth and throat.
• Difficulty swallowing (dysphagia): Sensation that food is stuck in the throat or behind the chest.
• Hoarseness or voice changes: May occur due to throat and vocal cord irritation.
• Chronic dry cough: A cough without phlegm that may persist for weeks or months.
• Sore throat: Redness and inflammation of the throat, especially in the morning.
• Sensation of a lump in the throat: Uncomfortable feeling as if something is stuck.
• Nausea and vomiting: May occur, especially after large meals.
• Chest pain resembling heart pain: May cause concern but differs from true cardiac pain.
• Frequent hiccups: May result from vagus nerve irritation.
• Early satiety: Feeling full quickly even with small food amounts.
• Insomnia and sleep disturbances: Due to nighttime symptoms and discomfort.

• Weakened lower esophageal sphincter: The primary cause is the valve's inability to close completely after food passes, allowing acid to flow backward.
• Hiatal hernia: A portion of the stomach pushes through an opening in the diaphragm, increasing reflux likelihood.
• Pregnancy: Hormonal changes and abdominal pressure during pregnancy weaken the sphincter.
• Obesity and excess weight: Additional pressure on the stomach increases intra-abdominal pressure, pushing acid upward.
• Delayed stomach emptying: Some individuals empty their stomach slowly, increasing pressure and reflux.
• Trigger foods and beverages: Fatty, acidic, spicy foods, caffeine, and alcohol relax the sphincter.
• Medications: Certain drugs like NSAIDs and calcium channel blockers reduce sphincter effectiveness.
• Smoking: Impairs sphincter function and reduces protective mucus secretion.

• Age: Reflux becomes more common in people over 40 years old.
• Obesity and excess weight: Increased abdominal pressure is a primary risk factor.
• Pregnancy and postpartum period: Hormonal changes weaken the sphincter.
• Smoking and secondhand smoke exposure: Reduces sphincter protection.
• Alcohol and carbonated beverages: Stimulate acid secretion and relax the valve.
• Sleeping immediately after eating: Increases likelihood of nocturnal reflux.
• Tight-fitting clothing: Increases pressure on the abdomen.
• Psychological stress and emotional strain: May increase acid secretion.
• Frequent consumption of fatty and spicy foods: Triggers reflux.
• Other medical conditions: Diabetes and chronic constipation may worsen reflux.

Diagnosis of GERD initially relies on clinical symptoms, and additional tests may be required in complicated or persistent cases. Your doctor will ask about your medical history, symptoms, and risk factors. Most simple cases can be diagnosed through clinical evaluation alone without complex tests. However, if symptoms don't respond to treatment or are severe, various diagnostic tests may be necessary.

• Clinical evaluation and medical history: Your doctor performs a comprehensive examination and asks about your symptoms, when they started, and how often they occur.
• Upper endoscopy: A thin flexible tube with a camera is inserted through your mouth to directly visualize the esophagus and stomach. Used when symptoms are severe or persistent.
• Esophageal manometry: A test measuring the strength of esophageal muscle contractions and sphincter function. Helps assess valve and esophageal function.
• 24-hour pH monitoring: A small device placed in the esophagus for 24 hours measures acid levels. Confirms GERD diagnosis in uncertain cases.
• pH-Impedance test: An advanced test detecting both acid and non-acid reflux, not just acid alone.
• Barium X-ray: May be used in some cases to visualize the shape and movement of the esophagus and stomach.
• Ultrasound or MRI: May be ordered to exclude other causes of chest pain if necessary.

Medications

• Antacids (e.g., magnesium salt, calcium salt): Work immediately to neutralize stomach acid and relieve acute symptoms. Used for mild occasional symptoms. Short-acting (30 minutes to 2 hours).
• Histamine-2 blockers (H2 blockers) (e.g., ranitidine, famotidine): Reduce stomach acid secretion. Take 30 minutes to 1 hour to work and last several hours. Used for moderate symptoms.
• Proton pump inhibitors (PPIs) (e.g., omeprazole, esomeprazole, lansoprazole): The strongest and most effective medications. Powerfully prevent acid secretion. Take several days for full effect but provide long-term control. Prescribed for chronic mild-to-severe cases.
• Prokinetics (e.g., domperidone): Improve esophageal and stomach movement and accelerate gastric emptying. Used as adjunctive therapy in cases with slow stomach emptying.

Procedures and Surgery

• Endoscopic procedures: Modern techniques such as muscle threading (EndoStim) or Transoral Incisionless Fundoplication (TIF) used in selected cases without major surgery.
• Hiatal hernia repair (Fundoplication): Surgery where the weakened valve is strengthened by rearranging tissue around the esophagus. Used when medications fail or in very severe cases. May be laparoscopic or open surgery.

Lifestyle Modifications

• Dietary adjustments: Avoid trigger foods (fatty, spicy, acidic, chocolate, onions, garlic); reduce meal size and increase frequency; avoid eating 2-3 hours before bedtime.
• Sleep position modifications: Elevate bed head 20-30 cm or use high pillows; avoid lying down immediately after eating.
• Weight loss: If obese, losing 5-10% of body weight may significantly improve symptoms.
• Smoking cessation: Smoking weakens the valve and worsens symptoms.
• Reduce alcohol and stimulants: Avoid alcoholic beverages, coffee, tea, and carbonated drinks.
• Wear loose clothing: Avoid very tight clothing that increases abdominal pressure.
• Stress management: Relaxation, yoga, and deep breathing techniques may help reduce symptoms.
• Avoid strenuous activities: Avoid heavy bending or lifting immediately after eating.

• Erosive esophagitis: Continuous acid exposure causes inflammation and erosion of esophageal lining, leading to painful swallowing and potentially invisible bleeding.
• Esophageal stricture: Repeated scarring from acid causes esophageal narrowing, leading to increasing swallowing difficulty and potentially requiring surgical dilation.
• Barrett's esophagus: Changes in esophageal lining cells due to chronic acid exposure. This is a precancerous condition that may increase risk of esophageal adenocarcinoma.
• Esophageal cancer: Increased risk of adenocarcinoma in the esophagus in patients with severe chronic GERD, especially with Barrett's esophagus.
• Asthma and respiratory diseases: Refluxed acid may enter the lungs, causing chronic cough, asthma, and even aspiration pneumonia.
• Throat and mouth disorders: Tooth erosion from mouth acidity, chronic hoarseness, chronic pharyngitis and gingivitis.
• Sleep disorders and depression: Chronic symptoms affect sleep quality and mental health, potentially leading to chronic fatigue and depression.

• Eat healthy and balanced meals: Choose healthy, low-fat foods like vegetables, fruits, and lean proteins. Avoid trigger foods whenever possible.
• Maintain a healthy weight: Obesity increases pressure on the stomach and worsens reflux. Try maintaining a BMI between 18.5 and 25.
• Eat small, frequent meals: Instead of three large meals daily, try 4-5 small meals.
• Quit smoking: Smoking is very harmful to the valve and esophagus. Quitting significantly reduces symptoms.
• Avoid alcohol and stimulants: Reduce coffee, tea, alcohol, and carbonated beverages.
• Don't lie down immediately after eating: Wait 2-3 hours before lying down or sleeping after meals.
• Elevate your bed head: Use high pillows or raise the head by 20-30 cm for better sleep.
• Wear comfortable, loose clothing: Avoid tight clothing that increases pressure on the abdomen and stomach.
• Manage stress and anxiety: Try relaxation techniques, yoga, and meditation to reduce tension.
• Avoid harmful medications: If taking NSAIDs, consult your doctor about better alternatives.