Vascular Disorders of the Gastrointestinal Tract Stephen C. Hauser, M.D

2005 ◽  
pp. 171-178
Keyword(s):  
Gastrointestinal Tract ◽  
Vascular Disorders

Thermosemiotic raynaud’s phenomenon for gastrointestinal pathology in children

2019 ◽  
Vol 1 (8) ◽  
pp. 51-57
Author(s):  
S. N. Kolesov
Keyword(s):  
Gastrointestinal Tract ◽  
Thermal Imaging ◽  
Raynaud’S Phenomenon ◽  
Raynaud's Phenomenon ◽  
Vascular Disorders ◽  
Gastrointestinal Pathology ◽  
Gender And Age

The results of long-term thermal imaging (TI) studies of local peripheral vegetative-vascular disorders in children with diseases of the gastrointestinal tract are summarized. TI cntena for the diagnosis of different variants of Raynaud's phenomenon depending on the gender and age of patients are formulated.

Vascular disorders of the gastrointestinal tract

2020 ◽  
pp. 2997-3007
Author(s):  
Ray Boyapati
Keyword(s):  
Abdominal Pain ◽  
Gastrointestinal Tract ◽  
Vascular Occlusion ◽  
Vascular Lesions ◽  
Intestinal Bleeding ◽  
Hereditary Haemorrhagic Telangiectasia ◽  
Mesenteric Ischaemia ◽  
Cross Sectional ◽  
Vascular Disorders ◽  
Cross Sectional Imaging

A wide range of vascular disorders and vasculitides may affect the gastrointestinal tract. Most are quite uncommon, but presentations are often dramatic with intestinal bleeding or gangrene. Intestinal ischaemia is most commonly due to atherosclerosis or thrombosis causing arterial or venous mesenteric vascular occlusion. There are four primary syndromes. (1) Ischaemic colitis—presents with abdominal pain, nausea, vomiting, and tenderness followed by passage of loose bloody stool. Supportive management is usually sufficient, but a key challenge is early identification of patients with severe injury who are likely to progress to transmural ulceration and perforation. (2) Acute mesenteric ischaemia—typically presents with sudden abdominal pain, initially without localizing signs such that diagnosis is often delayed. Priorities of management are resuscitation, exclusion of other causes of apparent abdominal catastrophe, and prompt laparotomy to resect ischaemic bowel. (3) Chronic mesenteric ischaemia—most often caused by atherosclerotic disease and presents with severe and poorly localized cramping abdominal pain after eating. Diagnosis requires evidence of vascular occlusion on imaging, and revascularization is the definitive management strategy. (4) Mesenteric venous thrombosis—diagnosis is most commonly via cross-sectional imaging. The mainstay of treatment is supportive, as well as anticoagulation and a search for predisposing factors. Vasculitides affecting the intestine may be primary or secondary. Abdominal symptoms rarely dominate the clinical picture. Vascular lesions of the gastrointestinal tract may present with acute haemorrhage, chronic iron deficiency anaemia, or obstruction. Lesions include angiodysplasias, telangiectasias, haemangiomas, Dieulafoy lesions, and gastric antral vascular ectasia. These lesions may occur in isolation or as part of a syndrome (e.g. hereditary haemorrhagic telangiectasia).

Habitat Association of Klebsiella Species

1985 ◽  
Vol 6 (2) ◽  
pp. 52-58 ◽  
Author(s):  
Susan T. Bagley
Keyword(s):  
Drinking Water ◽  
Gastrointestinal Tract ◽  
Surface Waters ◽  
Industrial Effluents ◽  
Opportunistic Pathogen ◽  
Habitat Associations ◽  
Habitat Association ◽  
Klebsiella Species ◽  
Almost All ◽  
Polluted Waters

AbstractThe genus Klebsiella is seemingly ubiquitous in terms of its habitat associations. Klebsiella is a common opportunistic pathogen for humans and other animals, as well as being resident or transient flora (particularly in the gastrointestinal tract). Other habitats include sewage, drinking water, soils, surface waters, industrial effluents, and vegetation. Until recently, almost all these Klebsiella have been identified as one species, ie, K. pneumoniae. However, phenotypic and genotypic studies have shown that “K. pneumoniae” actually consists of at least four species, all with distinct characteristics and habitats. General habitat associations of Klebsiella species are as follows: K. pneumoniae—humans, animals, sewage, and polluted waters and soils; K. oxytoca—frequent association with most habitats; K. terrigena— unpolluted surface waters and soils, drinking water, and vegetation; K. planticola—sewage, polluted surface waters, soils, and vegetation; and K. ozaenae/K. rhinoscleromatis—infrequently detected (primarily with humans).

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