Antiperistaltic agents may improve the quality of M-CT in elective conditions (33,34).
Finney-type [46] (side-to-side
antiperistaltic) and Michelassi [47] (side-to-side isoperistaltic) strictureplasties have been widely used for strictures longer than 10 cm, with very good results [48-50].
Although laparoscopic total gastrectomy has developed relatively slowly because of technical difficulties [6], intracorporeal side-to-side reconstruction based on an
antiperistaltic approach ("functional end-to-end anastomosis" [7]) or an isoperistaltic approach ("overlap anastomosis" [8]) is now performed.
Real-time observation will demonstrate
antiperistaltic waves proximal to obstruction.
DISCUSSION: The term retrograde intussusception (invagination) was first introduced by John Hunter to define an invagination of the intussusceptum in an
antiperistaltic or a proximal direction as opposed to the usual peristaltic or distal direction.
If food stays in the oesophagus for the same reason,
antiperistaltic movements can be activated and food will be returned to the pharynx.
Avoid
antiperistaltic agents, which can obscure symptoms and precipitate toxic megacolon.
Antiperistaltic medications should be avoided if possible.
Antiperistaltic drugs, antidiarrheals, and opiates are contraindicated in patients with C.
Antiperistaltic waves can also be produced and are quite common in crayfish hindgut; in mammals, however, they are more common in the proximal colon and more anterior regions of the alimentary canal (Winlow and Laverack, 1972b; Muramoto, 1981; Bedrich and Ehrlein, 2001).
The following surgical procedures have so far been performed in small groups of patients, with limited success: interposition of
antiperistaltic small-bowel segment or of colon, construction of valve mechanisms, lengthening procedures and electrical retrograde small-bowel stimulation.