ROBERT LEBOW, M.D.; MAY L. VOTAW, M.D.; STEPHEN ROYAL, M.D.
To the editor: Schilling and associates (1) are to be commended for their fine study showing vitamin B12 deficiency and the probable need for B12 supplementation after gastric bypass surgery for obesity.
Internists should be cautioned, however, that these results apply only to patients who have had the original gastric bypass procedure and not the gastroplasties now in vogue (the latest variation of which is the vertical banded gastroplasty). These gastroplasties are thought to be more physiologic and therefore less likely to lead to the complications some foresaw with the earlier gastric bypass procedure (2-4). The newer procedures remain to
LEBOW R, VOTAW ML, ROYAL S. Vitamin B12 Deficiency After Gastric Surgery. Ann Intern Med. ;102:139. doi: 10.7326/0003-4819-102-1-139_1
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Published: Ann Intern Med. 1985;102(1):139.
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