Israel Medical Association Journal

Background: Jejunal disease is associated with worse prognosis in Crohn's disease. The added value of diffusion weighted imaging for evaluating jejunal inflammation related to Crohn's Disease is scarce.

Objectives: To compare diffusion weighted imaging, video capsule endoscopy, and inflammatory biomarkers in the assessment of Crohn's disease involving the jejunum.

Methods: Crohn's disease patients in clinical remission were prospectively recruited and underwent magnetic resonance (MR)-enterography and video capsule endoscopy. C-reactive protein and fecal-calprotectin levels were obtained. MR-enterography images were evaluated for restricted diffusion, and apparent diffusion coefficient values were measured. The video capsule endoscopy-based Lewis score was calculated. Associations between diffusion weighted imaging, apparent diffusion coefficient, Lewis score, and inflammatory biomarkers were evaluated.

Results: The study included 51 patients, and 27/51 (52.9%) with video capsule endoscopies showed jejunal mucosal inflammation. Sensitivity and specificity of restricted diffusion for video capsule endoscopy mucosal inflammation were 59.3% and 37.5% for the first reader, and 66.7% and 37.5% for the second reader, respectively. Diffusion weighted imaging was not statistically associated with jejunal video capsule endoscopy inflammation (P = 0.813).

Conclusions: Diffusion weighted imaging was not an effective test for evaluation of jejunal inflammation as seen by video capsule endoscopy in patients with quiescent Crohn's disease.

The cause for gender differences in the epidemiology, natural history and response to therapy in many diseases is unknown and has seldom been investigated in depth. Sex hormones are blamed for many of these changes, mostly without any scientific evidence. In this review I will describe some of the evidence for gender differences in gastrointestinal diseases. Gender medicine and its application for gastroenterology is a new field and one warranting research.
 

It is common knowledge that in addition to the slaughter of millions of innocent civilians, Nazism caused direct damage to patient care by euthanasia of the handicapped, gruesome human experimentation, and ethnic cleansing of German medical schools. In gastroenterology, 53 prominent academicians living in Nazi-occupied Europe were persecuted by the Nazis. Prior studies analyzed this persecution as it related to gastroenterologists rather than to patient care. What is not known, however, is that Nazi persecution led to a delay of more than one generation in the clinical application of major inventions by these gastroenterologists. These included flexible fiberoptic endoscopy, which was delayed from 1930 to 1957. Fiberoptic transmission was invented by Heinrich Lamm in 1930. Lamm was exiled from Nazi Germany in 1936, and this technique was clinically applied to endoscopy by Hirschowitz only in 1957. Another innovation was fecal occult blood testing for early colon cancer detection, which was devised by Ismar Boas before 1938. Boas committed suicide under Nazi oppression in 1938 and this modality was clinically applied by Greegor only in 1967. The acceptance of refugees from Nazi Germany or Austria into America or into the future State of Israel helped mitigate some of this damage. For example, eight eminent academic gastroenterologists who fled Nazi-occupied countries to then mandatory Palestine made major contributions to the development of academic gastroenterology in the soon-to-be established State of Israel.