<prompt> All of the following are primarily restrictive operation for morbid obesity, ExceptVeical band gastroplastySwitch duodenal operationRouxen Y operationLaparoscopic adjustable gastric banding  <response>: Treatment for Obesity Dieting. Exercise. Veical banded gastroplasty.purely restrictive type, with creation of a calibrated stoma in the lesser curvature Gastric bypass. Laparoscopic gastroplasty or gastric bypass.to create a narrow stoma just below the OG junction, contraindicated in hiatal and paraesophageal hernias. roux-en-Y gastric bypassdone by open or laparoscopic methodproximal stomach is dissected between 1 st and 2 nd branches of left gastric branches. Jaw wiring. Biliopancreatic diversion. Jejuno-ileal bypass. Ref: SRB;s manual of surgery,5 th ed, pg no 106 