胃切除後の骨塩量低下とその対策-menatetrenone投与の経験-

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  • DECREASE OF BONE MINERAL DENSITY AFTER GASTRECTOMY, AND THE EFFECT OF MENATETRENONE

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Using the quantitative computed tomography (QCT) technique, we investigated the vertebral trabecular bone mineral density of 24 subjects with gastric cancer who had undergone a gastrectomy 6 years ago previously. The purpose of this clinical study was to create a guide to therapy for osteoporosis after gastrectomy. QCT values 6 years after surgery had decreased to 108.00±83.38mg/cm3 from 140.52±63.87mg/cm3. The rate by contrast with non-operated age-group standard values 6 years after surgery (119.60±86.46%) was also significantly lower than during the perioperative period (139.64±55.11%). 15 male subjects including 5 who were taking alfacalcidol for 3 year, made a similar reduction. The QCT values in 9 male patients who were taking menatetrenone increased to 97.35±77.59mg/cm3 from 89.89±69.63mg/cm3 after medication, accompanied by the reduction of urine pyridinolin and urine deoxypyridinolin concentrations. Therefore, the possibility that menatetrenone is effective for osteoporosis after gastrectomy is suggested.

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