Types of Colitis Based on Histology

Sherid, Muhammed; Ehrenpreis, Eli D.

doi:10.1016/j.disamonth.2011.05.004

Cited by 23 publications

(24 citation statements)

References 122 publications

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“…The predisposing factors for ischemic colitis are generally divided into two categories: vascular factors and bowel factors. Among the vascular factors, the most common pathophysiology for the development of ischemic colitis is the transient hypoperfusion to the colon . In general, systemic hypotension of any cause such as sepsis, hypovolemia, cardiogenic shock and third space shifting, and so on, would lead to colonic hypoperfusion, thus resulted in ischemic colitis.…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, vascular surgery, including abdominal aortic aneurysm repair, coronary artery bypass grafting, aortoiliac reconstruction surgery, endovascular repair of aortoiliac aneurysm and any surgery that requires aortic vascular clamping have been found to be associated with a high incidence of ischemic colitis . Vasospasm of the colonic vessels is another mechanism for the development of ischemic colitis, either due to systemic hypoperfusion, which shunts the blood from the intestine to the brain and other viable organs, or due to the exposure to vasoconstrictor drugs and substances that have direct or indirect effects on the splanchnic circulation, such as phenylephrine and cocaine . A third pathophysiological mechanism is thromboembolism due to either hypercoagulable states, including gene mutations and coagulation factor deficiencies, or cardiac emboli .…”

Section: Introductionmentioning

confidence: 99%

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Ischemic colitis: A forgotten entity. Results of a retrospective study in 118 patients

Sherid

Sifuentes

Samo

et al. 2014

J of Digest Diseases

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ischemic colitis: A forgotten entity. Results of a retrospective study in 118 patients

Sherid

Sifuentes

Samo

et al. 2014

J of Digest Diseases

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“…The mechanisms of ischemic colitis include transient colonic hypoperfusion, local vasoconstriction, mesenteric thromboembolism, and vasculitis [3–5]. CT angiogram is frequently performed following the diagnosis of ischemic colitis to look for the etiology of ischemic colitis.…”

Section: Discussionmentioning

confidence: 99%

Is CT Angiogram of the Abdominal Vessels Needed following the Diagnosis of Ischemic Colitis? A Multicenter Community Study

Sherid

Samo

Sulaiman

et al. 2014

ISRN Gastroenterology

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Background. CT angiogram is frequently obtained after diagnosis of ischemic colitis (IC). Aims. To investigate the vascular findings of CT angiogram as compared to contrast-enhanced CT scan and whether this modality changes the management or prognosis of IC. Methods. We conducted a retrospective analysis of patients with IC from 2007 to 2013. Results. CT angiogram was performed in 34 patients (28.81%), whereas contrast-enhanced CT scan was performed in 54 patients (45.76%). In CT angiogram group, 8 patients (23.5%) had atherosclerotic changes. Stenosis was found in 12 patients (35.3%) (9: celiac trunk, 3: SMA). Among this group, one patient underwent colectomy and another underwent angioplasty of the celiac trunk who died within 30 days. Among contrast-enhanced CT scan group, 5 patients (9.3%) had atherosclerotic changes. Stenosis was found in 5 patients (9.3%) (3: celiac trunk, 1: SMA, and 1: IMA). Among this group, 3 patients had colectomy and one died within 30 days. There was no statistical difference between both groups in all vascular findings except the stenosis which was higher in CT angiogram group (P = 0.0025). Neither the need for surgery nor all-cause mortality was different between both groups. Conclusion. CT angiogram did not provide any useful findings that altered the management or the prognosis of IC.

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“…Splenic hematoma and rupture, intramural hematoma, subcutaneous emphysema in the absence of frank colonic perforation, tearing of mesenteric vessels with intra-abdominal bleeding, thrombosis in carotid-subclavian artery bypass graft, thrombophlebitis in the intravenous site, intestinal obstruction, and ischemic and chemical colitis secondary to glutaraldehyde or air insufflation have been reported following colonoscopy in literature [3,14,15,23,31,57,58].…”

Section: Miscellaneousmentioning

confidence: 99%