What is true regarding congenital hyperophic pyloric stenosis :
More common in girls
Hypochloremic alkalosis
Hellers myotomy is the procedure of choice
Most often manifests at bih
Hypochloremic alkalosis develops due to vomiting. Ref: Text Book of Pediatrics By Nelson, 19th Edition, Page 1274; Bailey and Love's Sho Practice of Surgery, 22nd Edition, Page 674 and 23rd Edition, Page 899.