Hiatal Hernias BY- SHARMA PRANNAY RAI GROUP 40 5TH YEAR 9TH SEMESTER What is hiatal hernia? A hiatal hernia is when your stomach bulges up into your chest through an opening in your diaphragm, the muscle that separates the two areas. The opening is called the hiatus, so this condition is also called a hiatus hernia. OR A hiatal or paraoesophageal hernia occurs when the GE junction, the stomach, or other abdominal organs such as the small intestine, colon, or spleen move up into the chest where they do not belong. Pathophysiology of Hiatal Hernia Type 1 Hernia / Sliding HH / Hernia En Glissade • Characterized by upward displacement of the gastroesophageal junction into the posterior mediastinum • Stomach remains in usual longitudinal position • Higher incidence of HH in people with inguinal hernias • Majority of the patients are asymptomatic • Prevalence and size of sliding HH corelates with increasing severity of reflux disease Type II – True paraoesophageal hernia • Defined by normally positioned intraabdominal GE junction with upward herniation of the stomach alongside it • Develops when there is a defect possibly congenital in the hiatus anterior to the esophagus What is the point of difference between Type 1 and type 2 hernia? Persistent posterior fixation of the gastroesophageal junction is the essential difference between Paraoesophageal Hernia and sliding Hiatus Hernia. Type III – Mixed paraoesophageal hernia ( I & II) Displacement of both the GE junction and large portion of the stomach cephalad into the posterior mediastinum Starts as a sliding HH but over time as the hiatus enlarges, more of the fundus and body herniate into the chest Type IV- Paraoesophageal hernia containing other intra-abdominal organs • Esophageal hiatus has dilated to an extent that the hernial sac also contains other organs like Spleen, colon, or small bowel • Bowel obstruction and complications due to altered anatomy may occur Pathogenesis Factors affecting LES pressure Decreased by Increased by Prostaglandin E1 & E2, Progesterone Bombesin, Angiotensin II Morphine and Meperidine PP, Substance P, Motilin Theophylline Gastrin Barbiturates, Diazepam, Dopamin Antacids CCB, Atropine, Nitrates Cholinergic Chocolate, coffee Domeperidone Alcohol, peppermint, smoking, fat Metoclopramide Prostaglandin F Symptoms Many people with hiatal hernia don’t notice any symptoms. Others may have: • Heartburn from gastroesophageal reflux disease (GERD) Triad of symptomsretrosternal burning pain, epigastric pain and regurgitation. Most common in sliding HH. • Chest pain • Bloating • Burping • Trouble swallowing • Bad taste in your mouth • Upset stomach and vomiting • Backflow of food or liquid from your stomach into your mouth • Shortness of breath Diagnosis Chest X-ray • Patients with symptoms may undergo barium swallow, in which a contrast agent is swallowed and a series of xrays reveal the anatomy of the esophagus and stomach. A Schatzki ring is a circular band of mucosal tissue that can form at the end of the food pipe closest to the stomach. The ring of tissue causes the food pipe, or esophagus, to narrow. When a ring forms, a person may have no symptoms. Or, they may have difficulty swallowing, which the medical community calls dysphagia. Esophagogastroduodenoscop yis a procedure done under sedation in which the doctor visualizes the anatomy of the esophagus and stomach by inserting a thin camera to look at the upper gastrointestinal tract. Manometry may be used to measure the severity of the disease and to establish treatments. This is a study that allows the pressure inside the esophagus to be measured to determine if the muscles are too loose or too tight Treatment • Antacids that neutralize stomach acid. Antacids, such as Mylanta, Rolaids and Tums, may provide quick relief. Overuse of some antacids can cause side effects, such as diarrhea or sometimes kidney problems. • Medications to reduce acid production. These medications — known as H-2receptor blockers — include cimetidine (Tagamet HB), famotidine (Pepcid AC) and nizatidine (Axid AR) • Medications that block acid production and heal the esophagus. These medications — known as proton pump inhibitors — are stronger acid blockers than H-2-receptor blockers and allow time for damaged esophageal tissue to heal. Over-the-counter proton pump inhibitors include lansoprazole (Prevacid 24HR) and omeprazole (Prilosec, Zegerid) THANK YOU