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Primary hyperparathyroidism after Roux-en-Y gastric bypass
Yufei Chen1, Carrie C Lubitz, Scott A Shikora
1Massachusetts General Hospital, GRB-425, 55 Fruit Street, Boston, MA, 02114, USA, ychen49@partners.org.
Obesity Surgery
|September 25, 2014
Summary
Primary hyperparathyroidism (PHPT) after gastric bypass (RYGBP) is rare. Surgery is indicated for confirmed PHPT, but secondary hyperparathyroidism (SHPT) complicates diagnosis and follow-up.
Area of Science:
- Endocrinology
- Gastroenterology
- Surgical Oncology
Background:
- Primary hyperparathyroidism (PHPT) following Roux-en-Y gastric bypass (RYGBP) is infrequently documented.
- Diagnosis is challenging due to common secondary hyperparathyroidism (SHPT) from malabsorption post-RYGBP.
Purpose of the Study:
- To describe the clinical presentation, surgical management, and outcomes of PHPT in patients with a history of RYGBP.
Main Methods:
- Retrospective analysis of patients undergoing cervical exploration for PHPT between 2000-2012 with prior RYGBP.
- Data collected included demographics, biochemical levels, imaging, surgical approach, and follow-up outcomes.
Main Results:
- Ten female patients (average age 58.4) with PHPT post-RYGBP were identified.
- Surgery involved focused parathyroidectomy or four-gland exploration; 70% had single adenomas.
- 90% achieved biochemical cure at 6-month follow-up, though four had persistent elevated PTH despite normal calcium.
Conclusions:
- PHPT after RYGBP is rare but requires surgical intervention when biochemically confirmed.
- SHPT complicates diagnosis and follow-up, potentially increasing risk of severe postoperative hypocalcemia.
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