الفهرس 
ANATOMY OF MESENTRIC CIRCULATIONOnly 14 pages are availabe for public view
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Abstract
The results of treatment of acute intestinal ischaemia
are not encouraging, success is virtually confined to those
cases where there are definite vascular occlusion, and there
is only one recorded case in the world literature of a fully
documented non-occlusive infarction having survived with treatment
(Carey, J.S. et al., 1967).
This is due to the complicated physiological disturbances
with acute massive ischaemia of the midgut, also there
are other factors which are encountered in such condition:(!)
The condition usually bccurs in elderly patients, who
already have established degenerative disease of the
myocardium, lungs, brain and kidneys.so, under these
cir mstances, intestinal failure is more a mode of dying
than a cause of death.
(2) Milder forms of the illness occur, which pass unrecognized
and either resolve spontaneously or else respond to
incidental supportive measures (Bhagwat, A.G. and Hawk
W.A. 1966).
(3) There are no definite laboratory tests which correlate
with functionally significant intestinal ischaemia.
In chronic intestinal ischaemia, it is agreed that the
patient presents with a combination of upper abdominal pain,- 138 -
epigastric bruit, and narrowed origin of their visceral arteries,
those patients benefit from arterial reconstruction or
division of the median arcuate ligament of the diaphragm, however
it is very difficult to go beyond this point and to prove that
the pain is caused by diminished blood flow, that this interferes
with function and that the symptoms and the dysfunction.
are cured by surgery. So, it is not enough to abolish the
symprtoms, but it is necessary to show a measurable disturbance
of function which has thus been correct by surgery.
Ischaemic colitis is now a well recognized and establishPd
clinical condition, which may occur spontaneously or
following interference with the vasculature of the colon. Two
distinct forms of the illness occur and it is rare though
not unknown, for one to progress to the other.
In the first place there is a severe form of colitis
due to full-thickness necrosis of the colonic wall , which
presents as and acute abdomen, requires urgent excisional
surgery and carries a high mortality.The milder form of the
illness presents as an acute left-sided peritonitis, usually
associated with diarrhea and rectal bleeding, and can safely
be treated expectantly, about half the patients, managed in
this way will form a fibrous stricture in the colon, but
only a minority of these develop symptoms which are had enough
to warrant resection (Marston, A. 1977).