- Aspiration Pneumonia: This is the most serious complication of achalasia cardia but rare. In some cases due to sudden regurgitation process, gastric contents from the stomach enter in to the lungs leading to bronchopneumonia. Patient may present with sudden breathlessness, choking, vomiting episodes and respiratory distress.
- GERD- Long term immobility of the esophagus causing weakening of LES can lead to frequent regurgitation of the food contents to the mouth causing acid reflux disease. Patients normally present with epigastric pain, fullness after meals, water brash and indigestion.
- Esophagitis- Constant collection of food and gastric contents in the esophagus can irritate the mucosal lining causing inflammation of esophagus known as esophagitis.
- Perforation of esophagus- Chronic inflammation and irritation can also cause ulceration leading to formation of a hole in esophagus called esophageal perforation.