Endoscopy is performed to rule out a tumor ... laparoscopic Heller myotomy is identical to step 9 of a laparoscopic Nissen fundoplication. Delayed esophageal leakage, usually resulting from ...

[1] Laparoscopic Nissen fundoplication has been used for the ... He is currently an advanced trainee in endoscopic ultrasonography and continues to do research in impedance. Donald O Castell ...