This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Unknown
Heller’s cardiomyotomy done for: 
Select and explain. 
A. CHPS, B. Achalasia, C. GERD, D. Duodenal stenosis
B: Achalasia
Answer: B: Achalasia 
Explanation: Ref. API Textbook of Medicine. Pg. 1099
 
Management of achlasia cardia

1st line: calcium channel blockers
2 nd line: Pneumatic dilatation
3rd line: surgery -Hellers cardiomyotomy - it involves cutting the lower oesophgus and cardia.
The major complication is Gastroesophageal reflux and therefore additional Partial anterior fundoplication is done H(ellers -Dorr operation)
Botulinum toxin injection is used in recurrent cases of achalasia cardia