Enterotomy in Dogs and Cats: Anatomy and Procedure
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carnivore’s intestine is approximately five times the
length of its trunk applies reasonably well to dogs and
cats
•
The small intestine measures between 1.0 and 1.5 m
in cats and between 2 and 5 m in dogs
•
The small intestine is composed of the
duodenum
,
jejunum
, and
ileum
and therefore extends from the
pylorus to the ileocolic junction
•
The duodenum is the relatively fixed, short proximal
part of the small intestine.
•
the jejunum, the longest portion of the small intestines
•
The root of the mesentery includes the cranial
mesenteric artery, intestinal lymphatics, and
large mesenteric plexus of nerves that supply
the small intestine.
•
Cranial mesenteric artery arises beneath the first
lumbar vertebra and anastomoses proximally with a
branch of the celiac artery
•
the cranial mesenteric artery divides into 12 to 15
major branches
•
The small intestine is structurally composed of
four layers: the mucosa, submucosa,
muscularis, and serosa
•
Enterotomy indication
•
Foreign bodies
•
Biopsy samples
•
A longitudinal incision is made in the antimesenteric border of
the bowel immediately distal to the foreign object.
•
This ensures the suture line is placed in healthy bowel that has
not undergone pressure necrosis or distension from presence of
the foreign body.
•
The enterotomy is closed longitudinally in a single layer,
appositional pattern with simple interrupted or continuous
sutures.
•
When full-thickness intestinal biopsies are needed for
histopathologic evaluation, a longitudinal elliptical incision is
made in the antimesenteric border of the bowel
•
longitudinal closure of the defect compromises the lumen, the
defect is closed transversely in a single layer, appositional,
simple interrupted pattern
The small intestine anatomy in carnivores like dogs and cats, including the structure, length, and components. Details on enterotomy indications, procedure, and closure techniques for foreign bodies and biopsies.
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Presentation Transcript
Enterotomy Dr.Alaa Ahmed Ibrahim
Antomy carnivore s intestine is approximately five times the length of its trunk applies reasonably well to dogs and cats The small intestine measures between 1.0 and 1.5 m in cats and between 2 and 5 m in dogs The small intestine is composed of the duodenum, jejunum, and ileum and therefore extends from the pylorus to the ileocolic junction The duodenum is the relatively fixed, short proximal part of the small intestine. the jejunum, the longest portion of the small intestines
The root of the mesentery includes the cranial mesenteric artery, intestinal lymphatics, and large mesenteric plexus of nerves that supply the small intestine. Cranial mesenteric artery arises beneath the first lumbar vertebra and anastomoses proximally with a branch of the celiac artery the cranial mesenteric artery divides into 12 to 15 major branches
The small intestine is structurally composed of four layers: the mucosa, submucosa, muscularis, and serosa
Enterotomy indication Foreign bodies Biopsy samples A longitudinal incision is made in the antimesenteric border of the bowel immediately distal to the foreign object. This ensures the suture line is placed in healthy bowel that has not undergone pressure necrosis or distension from presence of the foreign body. The enterotomy is closed longitudinally in a single layer, appositional pattern with simple interrupted or continuous sutures. When full-thickness intestinal biopsies are needed for histopathologic evaluation, a longitudinal elliptical incision is made in the antimesenteric border of the bowel
longitudinal closure of the defect compromises the lumen, the defect is closed transversely in a single layer, appositional, simple interrupted pattern
