1,393 research outputs found
Vascular challenges from pancreatoduodenectomy in the setting of coeliac artery stenosis
Coeliac artery stenosis due to median arcuate ligament compression or atherosclerotic disease is a frequently unrecognised challenge to recovery after pancreatoduodenectomy. The described case illustrates management with intraoperative superior mesenteric artery to hepatic artery bypass graft that led to haemorrhagic challenges postoperatively but ultimately a good recovery. Aspects of preoperative diagnosis, preoperative intervention and intraoperative management options are reviewed. Surgeons need to possess these tools to prevent complications from coeliac artery stenosis when pancreatoduodenectomy is required
The celiac axis compression syndrome (CACS): critical review in the laparoscopic era
The celiac axis compression syndrome (CACS) due to median
arcuate ligament (MAL) was first described by Harjola in 1963;
originating postpandrial abdominal pain, weight loss, epigastric
bruit and celiac axis stenosis > 75% in angiographic studies. This
clinical condition has been the origin of controversies about its
pathogenesis, diagnosis and its long term clinical results.
Advances in diagnostic imaging as 64 multidetector–row CT
(MDCT), 3-D reconstruction, magnetic resonance (MR) and color
duplex ultrasonography, provide better understanding of the syndrome
and allow to identify the best candidates for surgical division
of MAL fibers.
Since the introduction of laparoscopic approach, and also endovascular
procedures, in 2000, a new perspective has established
in this challenging syndrome. With the occasion of our own
experience, a critical review of the syndrome is presented
A case of pancreatic cancer with concomitant median arcuate ligament syndrome treated successfully using an allograft arterial transposition
An association of pancreatic cancer and median arcuate ligament syndrome (MALS) is a rare and challenging situation in terms of treatment. A 60-year-old man diagnosed with pancreatic cancer underwent laparotomy. A pancreaticoduodenectomy was planned, but during the resection part of the operation, a celiac artery stenosis was noticed. The patient was diagnosed with MALS causing almost total celiac artery occlusion, with no radiological solution. The patient was re-operated the next day, and an iliac artery allograft was used for aorta-proper hepatic artery reconstruction, concomitant with the total pancreaticoduodenectomy. Preoperative meticulous evaluation of vascular structures of the celiac trunk and its branches is important, especially in pancreatic surgery. A vascular allograft may be a lifesaving alternative when vascular reconstruction is necessary
Logistics and technique for combined hepatic-intestinal retrieval
During a 13-month period, en bloc liver-small bowel cadaveric grafts were procured for seven children and one adult. All liver grafts functioned immediately, and all but one of the recipient patients recovered. Return of absorptive small bowel function was slow, but the integrity of the bacterial intestinal barrier was not disrupted. The described technique allows the procurement of other abdominothoracic organs, with the exception of the whole pancreas
What is Doppler ultrasound?
The term Doppler should be
capitalized because it refers to
Christian Johann Doppler, an Austrian
physicist (1803–1853). He described a
phenomenon whereby the frequency
of sound changes when it is reflected
off a moving object. If the object is
moving towards the observer, reflected
sound frequency is increased (blue
shift), while if the reflecting object
is moving away from the observer,
the sound frequency decreases (red
shift). This is analogous to a moving
ambulance with its siren on; the
siren pitch increases as ambulance
approaches and decreases as it
receeds.
The Doppler Effect may be used
also in ultrasound. With normal grey
scale ultrasound we rely on amplitude
of reflected sound waves and the reflectivity of anatomic structures
is proportional to the intensity (or
amplitude) of the reflected sound
and hence brightness on the scanner
display. If frequency (rather than
amplitude) is analysed, one can
detect motion on the basis of Doppler
shifts. These frequency shifts can
be quantified reasonably accurately
according to direction, velocity and
also acceleration, all of which provide
specific signatures that help identify
both normal and diseased blood
vessels.peer-reviewe
An intriguing autopsy case of gangrene intestine
Background
Hashimoto’s thyroiditis is one of the most common causes of hypothyroidism. Hypothyroidism is a known cause of hyperlipidemia. There is a strong correlation between coronary and mesenteric vessel atherosclerosis. Acute mesenteric ischemia is a cause of intestinal hemorrhagic infarction.
Case history
We present an autopsy case of 35-year-old male who presented with features of obstruction and edema with previously undetected hypothyroidism.
Conclusion
Hypothyroidism associated with atherosclerosis can lead to fatal intestinal gangrene as corroborated by this autopsy case.
Key words –Hypothyroidism, intestinal gangrene, autopsy, atherosclerosi
Abdominal multivisceral transplantation
Under FK506-based immunosuppression, 13 abdominal multivisceral transplantations were performed in 6 children and 7 adults. Of the 13 recipients, 7 (53.8%) are alive and well with functioning grafts after 9 to 31 months. Six recipients died: Three from PTLD, one from rejection, one from sepsis, and one from respiratory failure. In addition to rejection, postoperative complications occurring in more than isolated cases included PTLD (n=6), abdominal abscess formation (n=5), pancreatitis (n=3), and ampullary dysfunction (n=2). In addition, infection by enteric microorganisms was common during the early postoperative period. Currently, all 7 survivors are on an oral diet and have normal liver function. Two recipients (one insulin-dependent) require antidiabetes treatment, in one case following distal pancreatectomy and in the other after two episodes of pancreatic rejection. Thus, abdominal multivisceral transplantation is a difficult but feasible operation that demands complex and prolonged posttransplantation management. It is not yet ready for application and awaits a better strategy of immune modulation. © 1995 by Williams & Wilkins
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