{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,27]],"date-time":"2025-10-27T10:39:44Z","timestamp":1761561584533},"reference-count":38,"publisher":"Hindawi Limited","license":[{"start":{"date-parts":[[2011,1,1]],"date-time":"2011-01-01T00:00:00Z","timestamp":1293840000000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Case Reports in Endocrinology"],"published-print":{"date-parts":[[2011]]},"abstract":"<jats:p><jats:italic>Background.<\/jats:italic>Roux-en-Y gastric bypass (RYGB) can result in calcium and vitamin D deficiency. Parathyroid surgery carries the risk of immediate and long-term hypocalcemia.<jats:italic>Methods and Results.<\/jats:italic>We describe a 54-year-old woman with history of end-stage renal disease and gastric bypass surgery who developed calciphylaxis requiring a 3.5-gland parathyroidectomy. Seven weeks later, she presented with weakness, perioral numbness, leg cramps, a positive Chvostek's sign, hypotension, prolonged QT-interval, and serum calcium of 5.4\u2009mg\/dL. Oral and intravenous calcium, calcitriol, and high calcium bath hemodialysis were given. She required 18 days of intravenous calcium and an outpatient maintenance regimen of calcitriol 6\u2009mcg\/day, calcium carbonate 8 grams\/day, calcium citrate 1.2 grams\/day, and ergocalciferol 50,000\u2009IU\/week.<jats:italic>Conclusion.<\/jats:italic>The patient's life-threatening prolonged hypocalcemia and large requirements of calcium and calcitriol were due to a combination of malabsorption, hypoparathyroidism, and renal failure. Special considerations should be given to bariatric surgery patients undergoing neck exploration.<\/jats:p>","DOI":"10.1155\/2011\/370583","type":"journal-article","created":{"date-parts":[[2011,11,10]],"date-time":"2011-11-10T12:21:14Z","timestamp":1320927674000},"page":"1-5","source":"Crossref","is-referenced-by-count":6,"title":["Life-Threatening Hypocalcemia following Subtotal Parathyroidectomy in a Patient with Renal Failure and Previous Roux-en-Y Gastric Bypass Surgery"],"prefix":"10.1155","volume":"2011","author":[{"given":"Betsy","family":"Palal","sequence":"first","affiliation":[{"name":"Section of Endcrinology, Department of Medicine, Rush University Medical Center, Chicago, IL 60612, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Marvin","family":"Sinsakul","sequence":"additional","affiliation":[{"name":"Section of Nephrology, Department of Medicine, Rush University Medical Center, Chicago, IL 60612, 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