Posts from September 2014


Colorectal Cancer

A new stool DNA test that also incorporates stool hemoglobin testing and DNA methylation was approved by the US Food and Drug Administration in August 2014. The new test seems to detect colorectal cancer in 92.3 percent of patients. There are however false positive tests in 10 percent of

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Screening Colonoscopy and Adenoma Detection Rate

The New England Journal of Medicine recently reported in a study of over 300,000 colonoscopies, rates of adenoma detection among 136 gastroenterologists varied from 7.4 to 52.5 percent. Patients who had screening colonoscopy performed by gastroenterologists with higher rates of detecting

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Low FODMAP Diet in Irritable Bowel Syndrome

A diet low in fermentable oligo-, di-, and monosaccharides and polyols (FODMAPs) has been recommended in patients with irritable bowel syndrome (IBS). In a recent randomized trial, 30 patients with IBS and 8 healthy controls were assigned to 21 days of either a diet low in FODMAPs or a moderate

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Gluten sensitivity

Many patients are placing themselves on a gluten free diet even though there is no evidence of gluten intolerance. This group has been called “non-celiac gluten sensitivity” but many gastroenterologists doubt its existence. Most of their symptoms are not replicated on double-blind food challenge,

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