Best investigation for Diffuse Esophageal Spasm :: (A) Enteroscopy, (B) Manometry, (C) Barium enema, (D) Barium meal follow through
Answer is B. Ans- B Manometry For Motility disorders:: First line is UGIE IOC IS Manometry For GERD::1st line is UGIE IOC :24 hr ambulatory pH measurement.