achlorhydria


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achlorhydria

[¦ā·klȯr′hīd·rē·ə]
(medicine)
Absence of hydrochloric acid in the stomach.
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References in periodicals archive ?
Watery diarrhea, hypokalemia and achlorhydria syndrome which was described by Verner and Morrison (1) in 1958 for the first time (WDHA) is a rare cause of chronic secretory diarrhea arising from a vasoactive intestinal peptide (VIP) secreting tumor.
B12 deficiencies may be seen in patients with gastrointestinal illness, older adults with achlorhydria, and vegans and vegetarians, in whom B12 intake can be low.
Calcium absorption is pH-dependent and decreases significantly in the presence of achlorhydria. (11,12) A previous report described hypocalcemia and tetany in a patient with a previous subtotal thyroidectomy who had been treated with lansoprazole for GERD.
Faulty or incomplete iron absorption (e.g., achlorhydria in certain disorders or following gastric resection; chronic diarrhea associate with disorders such as celiac disease, sprue or resection of the small bowel; and the absence of factors needed for iron absorption).
With hypo or achlorhydria resulting in increase in stomach pH and atrophy with loss of parietal cells that harbor H pylori, the patient eventually may be negative for H pylori and thus resemble Type 1 autoimmune gastritis.
The predominance of HIV-positive homosexual men in the outbreak may be due to more symptomatic disease (from compromised cell-mediated immunity or achlorhydria [3]), more unprotected sex with other HIV-positive men (4), and greater likelihood of seeking healthcare.
In this respect, achlorhydria due to atrophic gastritis, the production of ammonia, or both, which are characteristic of [Helicobacter] pylori infection, may alter the ionization status and the conformational characteristics of the thyroxine molecule and thus the efficiency of intestinal absorption of the hormone."
(51) Glucagonoma syndrome includes necrolytic migratory erythema, stomatitis, angular cheilitis, glossitis, diabetes mellitus, anemia, achlorhydria, weight loss, and hypercoagulability.
The hypothesis is supported by anecdotal observations in patients with achlorhydria or ileostoma, respectively.
pylon-induced gastric hypoacidity, or achlorhydria, which may contribute to poor iron absorption, and an increase in iron demand because of bacterial competition for iron [7].
Risk factors for this condition include diabetes, gastric resection, achlorhydria, scleroderma, small bowel diverticula, strictures, fistulae and pseudo-obstruction [3].