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Current Opinion in Gastroenterology Nov 2010
Topics: Duodenum; Humans; Stomach
PubMed: 20838340
DOI: 10.1097/MOG.0b013e32833fc89a -
Gastrointestinal Endoscopy Jul 2021
Topics: Duodenum; Humans
PubMed: 34148569
DOI: 10.1016/j.gie.2021.01.039 -
Journal of the National Medical... Feb 1992Duodenal injuries are relatively infrequent. A high index of suspicion is required because the retroperitoneal location of the duodenum makes the diagnosis of injuries... (Review)
Review
Duodenal injuries are relatively infrequent. A high index of suspicion is required because the retroperitoneal location of the duodenum makes the diagnosis of injuries difficult. Physical findings may be subtle and nonspecific. Contrast studies are often required to make the diagnosis. Options for operative management are outlined. Morbidity and mortality are related to associated injuries and delay in diagnosis.
Topics: Abdominal Injuries; Duodenum; Humans
PubMed: 1602516
DOI: No ID Found -
Journal of the National Medical... May 1979Duodenum inversum is usually associated with chronic abdominal pain which is of unknown etiology. Incomplete rotation of the bowel may be associated with this anomaly....
Duodenum inversum is usually associated with chronic abdominal pain which is of unknown etiology. Incomplete rotation of the bowel may be associated with this anomaly. An unusually high incidence of pancreatitis, elevated bilirubin, and hypoalbuminemia was noted in this series of nine patients.
Topics: Abdomen; Adult; Duodenum; Female; Humans; Laparotomy; Pain; Radiography
PubMed: 448763
DOI: No ID Found -
Annual International Conference of the... Jul 2023The primary function of the duodenum is to undertake chemical digestion by ensuring that the partially digested food received from the stomach is well-mixed with the...
The primary function of the duodenum is to undertake chemical digestion by ensuring that the partially digested food received from the stomach is well-mixed with the enzymes and chemicals secreted into it. However, little is known about the anatomical variations in the shape of the duodenum within humans, and thus the effect of duodenum shape on the flow and mixing occurring within the lumen has not been studied. In this work, a methodology for analyzing shape variations in the normal duodenal anatomy has been developed and applied to a publicly available dataset of abdominal CT images. This method does not require the placement of landmarks as it is based on the underlying tubular 'C' shape of the duodenum. The average duodenal length and radius of this dataset (consisting of 34 subjects) were 212.8 ± 38 mm and 10.8 ± 2.5 mm respectively. A Principal Component Analysis (PCA) was conducted on a sample of 34 duodenums after normalizing their lengths and the first five principal components were found to contribute to 82 % of the total variation. The first shape component (accounting for 42 % of overall variation) consisted of variations in the radius along the duodenum with no deformations normal to the central plane, and the subsequent shape modes consisted of twists in the centerline either in and out of the central plane, and radial variations at either the inlet or outlet. This is the first study to analyze shape variations in the human duodenum and the results can be combined with flow modeling to analyze the effect of shape on the flow and mixing occurring within the duodenum.Clinical relevance- The methods developed in this study can be used by clinicians to diagnose abnormalities in an individual's duodenum shape.
Topics: Humans; Duodenum; Stomach
PubMed: 38083606
DOI: 10.1109/EMBC40787.2023.10340464 -
Radiographics : a Review Publication of... Oct 2001Abdominal computed tomography (CT) is frequently performed to evaluate gastrointestinal pathologic conditions, and the majority of the gastrointestinal radiology... (Review)
Review
Abdominal computed tomography (CT) is frequently performed to evaluate gastrointestinal pathologic conditions, and the majority of the gastrointestinal radiology literature has concentrated on the colon, stomach, and distal small bowel. In a description of CT findings of duodenal pathologic conditions, congenital, traumatic, inflammatory, and neoplastic diseases are presented. Congenital duodenal anomalies such as duplications and diverticula are usually asymptomatic, while annular pancreas and malrotation may manifest in the 1st decade of life. CT plays a vital role in the diagnosis of traumatic duodenal injury. Primary inflammatory processes of the duodenum such as ulcers and secondary involvement from pancreatitis can reliably be diagnosed at CT. Infectious diseases of the duodenum are difficult to diagnose, as the findings are not specific. While small bowel malignancies are relatively rare, lipoma, adenoma, and adenocarcinoma, as well as local extension from adjacent malignancies, can be diagnosed at CT. Careful CT technique and attention to the duodenum can result in reliable prospective diagnoses.
Topics: Duodenal Diseases; Duodenum; Humans; Tomography, X-Ray Computed
PubMed: 11598254
DOI: 10.1148/radiographics.21.suppl_1.g01oc01s147 -
Current Gastroenterology Reports Apr 2000The sphincter of Oddi (SO) is a complex structure that must function in coordination with the motor activities of the gallbladder and the duodenum. It is now clear that... (Review)
Review
The sphincter of Oddi (SO) is a complex structure that must function in coordination with the motor activities of the gallbladder and the duodenum. It is now clear that a neural circuit exists between the duodenum and the SO, and it is likely that this network is largely responsible for the regulation of SO motility. Recent studies have demonstrated that this circuit provides excitatory cholinergic input to SO ganglia that can be activated by electrical stimulation of the duodenal mucosa, distention of the duodenum, and increased motor activity of the duodenum.
Topics: Autonomic Nervous System; Bile; Cholecystokinin; Duodenum; Gallbladder; Humans; Postprandial Period; Sphincter of Oddi
PubMed: 10981011
DOI: 10.1007/s11894-000-0093-x -
Journal of Hepato-biliary-pancreatic... 2003There have, hitherto, been no anatomical investigations of the intramural venous system of the duodenum. (Review)
Review
BACKGROUND/PURPOSE
There have, hitherto, been no anatomical investigations of the intramural venous system of the duodenum.
METHODS
Intramural longitudinal anastomoses of the straight veins in the human duodenum were investigated, using 15 latex resin cast specimens.
RESULTS
The venous tree (with a straight vein as the trunk) was developed well, with numerous twigs (venules). We identified two types of longitudinal anastomoses between the straight veins; the direct and plexus-mediated types, with an equal incidence. The direct-type anastomosis was 0.1-0.5 mm in minimum diameter along the course and communicated in almost a straight line between the mother straight veins. In contrast, the plexus-mediated type was regarded as the thickest route (almost 0.1 mm) in the suggested submucosal venular network in the duodenal wall. These two types of anastomoses were distributed almost equally in most of the duodenum, although a relatively lower density was found in the superior portion. On the ventral side of the duodenum, the thicker straight veins had anastomotic branches significantly more frequently than the thinner ones (P = 0.0018). CONCLUSIONS; These results seemed to support the feasibility of Kocher mobilization, as well as the conventional poor preservation of the duodenal venous system during duodenum-preserving surgery. However, because the intramural longitudinal venous anastomoses were limited in number and location, we recommend preservation of the posterior superior pancreaticoduodenal vein and either of the inferior venous arcades, in combination with their concomitant arteries, in exchange for the unavoidable sacrifice of Henle's trunk and the dorsal pancreatic vein.
Topics: Aged; Aged, 80 and over; Duodenum; Humans; Veins
PubMed: 14605977
DOI: 10.1007/s00534-002-0683-0 -
The American Surgeon May 1989The second part of this monograph on the duodenum describes the muscular and mucosal changes observed at the gastroduodenal junction. The structure of the duodenal wall...
The second part of this monograph on the duodenum describes the muscular and mucosal changes observed at the gastroduodenal junction. The structure of the duodenal wall and details of the intramural portion of the common bile and pancreatic ducts are described, together with the surgical anatomy of the four parts of the duodenum. The arterial supply, the venous and lymphatic drainage, and the innervations are described from the surgeon's point of view.
Topics: Ampulla of Vater; Common Bile Duct; Duodenum; Humans; Pancreatic Ducts
PubMed: 2719406
DOI: No ID Found -
Gastroenterologia Y Hepatologia Apr 2022
Topics: Duodenum; Endoscopy; Humans; Nails
PubMed: 33545234
DOI: 10.1016/j.gastrohep.2020.10.019