[Hiatal hernia: Current evidence and controversies in treatment]

Hiatal hernia: Current evidence and controversies in treatment Abstract. A hiatal hernia describes an enlarged diaphragmatic hiatus esophageus, through which the gastroesophageal transition occurs. In its maximum variant, the entire stomach and other intestinal organs can be shifted thoracically. Symptoms of hiatal hernia are related to reflux disease, but also to intrathoracic compression symptoms due to the dislodgement of intrathoracic organs into the mediastinum, with the most dramatic presentation being ischemia of the herniated organs due to strangulation. The most common classification distinguishes four types of hiatus hernias according to their anatomical morphological characteristics (type I-IV). Treatment recommendation is guided by patients' symptoms, as no conservative treatment of a hiatal hernia is possible. High recurrence rates after surgical treatment of a hiatal hernia and antireflux surgery led to a discussion about diaphragm closure with or without mesh augmentation, and data seem to indicate that hiatal mesh augmentation reduces recurrence. Also, due to the high recurrence rates, re-do surgery is a valid option for symptomatic patients. Presently, no uniform recommendation for either surgical technique of hiatus closure or the use of a mesh inlay exists, and individual decision making is rather related upon the institutional experience with upper GI surgery.