<prompt> Hellers cardiomyotomy done for:CHPSAchalasiaGERDDuodenal stenosis  <response>: Ref. API Textbook of Medicine. Pg. 1099 Management of achlasia cardia1st line: calcium channel blockers2 nd line: Pneumatic dilatation3rd 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 Hellers -Dorr operationBotulinum toxin injection is used in recurrent cases of achalasia cardia 