Occlusive and Non-Occlusive Gastrointestinal Ischaemia: a Clinical Review with Special Emphasis on the Diagnostic Value of Tonometry
1998
Background: To review clinical features of the occlusive splanchnic ischaemia syndromes with special emphasis on the diagnostic value of tonometry. Methods: The English literature was reviewed with an emphasis on papers concerning anatomy and physiology of splanchnic perfusion, the clinical presentation and diagnostic procedures in occlusive splanchnic ischaemia syndromes. Results: Splanchnic ischaemia can result from hypovolaemic states, resulting in splanchnic vasoconstriction and ischaemia with normal splanchnic vessels (non-occlusive ischaemia) or from vascular stenoses (occlusive ischaemia). The former is frequently encountered in critically ill patients, whereas the latter is considered rare, despite a relatively high incidence of splanchnic atherosclerosis. The main problem hindering assessment of the incidence of symptomatic chronic splanchnic ischaemia is the lack of a diagnostic procedure separating symptom-free from symptomatic splanchnic atherosclerosis. Although angiography provides precise a...
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