Araştırma Makalesi

Postoperative frequency of normocalcemic elevated parathormone in patients surgically treated for primary hyperparathyroidism: A single-center experience

Cilt: 10 Sayı: 1 26 Mart 2026
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Postoperative frequency of normocalcemic elevated parathormone in patients surgically treated for primary hyperparathyroidism: A single-center experience

Öz

Aim: After parathyroidectomy, parathormone levels may remain elevated despite normalization of serum calcium levels in some patients, which is known as “postoperative normocalcemic elevated parathormone”. In this study, we aimed to determine postoperative normocalcemic elevated parathormone frequency in patients undergoing parathyroidectomy due to primary hyperparathyroidism through a retrospective review. Material and Methods: Preoperative, intraoperative, early postoperative (maximum 7-days, starting from the next day of surgery until discharge) and late postoperative (months 1, 3, 6 and 12) laboratory tests of the 127 patients were reviewed retrospectively. Corrected calcium levels were obtained using serum albumin levels. Results: Laboratory values consistent with postoperative normocalcemic elevated parathormone were identified in 56%, 44%, 42.3% and 31.9% of the patients at 1, 3, 6 and 12 months postoperatively. There are missing data in the 127 patients who underwent surgery because some patients did not attend their follow-up visits or were followed up in other centers. Serum calcium values were available and within normal range for all 91 patients followed for a mean duration of 44.0±27.2 months (median= 36, min= 15, max=144). The frequency of postoperative normocalcemic elevated parathormone was 34.4% among patients with serum calcium and PTH measurements available from the last visit. Conclusion: The prevalence of postoperative normocalcemic elevated parathormone varies among different patient series depending on the criteria used. Whether the underlying secondary hyperparathyroidism contributes to postoperative normocalcemic elevated parathormone should be investigated and managed appropriately. Considering that postoperative normocalcemic elevated parathormone may also represent primary hyperparathyroidism recurrence, regular follow-up is required for patients.

Anahtar Kelimeler

Proje Numarası

None

Kaynakça

  1. Wermers RA, Griebeler ML, Thapa P, Hathcock MA, Kearns AE. Survival in primary hyperparathyroidism over five decades (1965-2010): a population-based retrospective study. Bone. 2021;152:116099. https://doi.org/10.1016/j.bone.2021.116099
  2. Walker MD, Silverberg SJ. Primary hyperparathyroidism. Nat Rev Endocrinol. 2018;14(2):115-125. https://doi.org/10.1038/nrendo.2017.104
  3. Kearns AE, Thompson GB. Medical and surgical management of hyperparathyroidism. Mayo Clin Proc. 2002;77(1):87-91. https://doi.org/10.4065/77.1.87
  4. Ahmed FW, Majeed MS, Kirresh O. Multiple endocrine neoplasias type 4. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2022.
  5. Bilezikian JP, Brandi ML, Eastell R, Silverberg SJ, Udelsman R, Marcocci C, et al. Guidelines for the management of asymptomatic primary hyperparathyroidism: summary statement from the Fourth International Workshop. J Clin Endocrinol Metab. 2014;99:3561-3569. https://doi.org/10.1210/jc.2014-1413
  6. Cao S, Hu Y, Zhao Y, Su Z, Xu Z, Gao X, et al. A retrospective study of elevated post-operative parathormone in primary hyperparathyroid patients. Oncotarget. 2017;8(60):101158-101164. https://doi.org/10.18632/oncotarget.20416
  7. Carty SE, Roberts MM, Virji MA, Haywood L, Yim JH. Elevated serum parathormone level after “concise parathyroidectomy” for primary sporadic hyperparathyroidism. Surgery. 2002;132(6):1086-1092. https://doi.org/10.1067/msy.2002.128479
  8. Brown EM. 4-parameter model of the sigmoidal relationship between parathyroid hormone release and extracellular calcium concentration in normal and abnormal tissue. J Clin Endocrinol Metab. 1983;56(3):572-581. https://doi.org/10.1210/jcem-56-3-572

Ayrıntılar

Birincil Dil

İngilizce

Konular

Endokrinoloji

Bölüm

Araştırma Makalesi

Erken Görünüm Tarihi

26 Mart 2026

Yayımlanma Tarihi

26 Mart 2026

Gönderilme Tarihi

13 Mart 2025

Kabul Tarihi

2 Şubat 2026

Yayımlandığı Sayı

Yıl 2026 Cilt: 10 Sayı: 1

Kaynak Göster

APA
Elbüken, G., Bilen, O. İ., Öztürk, B. O., Ağgül, H., Özkan-Gürdal, S., Tokuç, B., & Zuhur, S. S. (2026). Postoperative frequency of normocalcemic elevated parathormone in patients surgically treated for primary hyperparathyroidism: A single-center experience. Medical Journal of Western Black Sea, 10(1), 106-115. https://doi.org/10.29058/mjwbs.1656011
AMA
1.Elbüken G, Bilen Oİ, Öztürk BO, vd. Postoperative frequency of normocalcemic elevated parathormone in patients surgically treated for primary hyperparathyroidism: A single-center experience. Med J West Black Sea. 2026;10(1):106-115. doi:10.29058/mjwbs.1656011
Chicago
Elbüken, Gülşah, Ogün İrem Bilen, Beyza Olcay Öztürk, vd. 2026. “Postoperative frequency of normocalcemic elevated parathormone in patients surgically treated for primary hyperparathyroidism: A single-center experience”. Medical Journal of Western Black Sea 10 (1): 106-15. https://doi.org/10.29058/mjwbs.1656011.
EndNote
Elbüken G, Bilen Oİ, Öztürk BO, Ağgül H, Özkan-Gürdal S, Tokuç B, Zuhur SS (01 Nisan 2026) Postoperative frequency of normocalcemic elevated parathormone in patients surgically treated for primary hyperparathyroidism: A single-center experience. Medical Journal of Western Black Sea 10 1 106–115.
IEEE
[1]G. Elbüken vd., “Postoperative frequency of normocalcemic elevated parathormone in patients surgically treated for primary hyperparathyroidism: A single-center experience”, Med J West Black Sea, c. 10, sy 1, ss. 106–115, Nis. 2026, doi: 10.29058/mjwbs.1656011.
ISNAD
Elbüken, Gülşah - Bilen, Ogün İrem - Öztürk, Beyza Olcay - Ağgül, Hünkar - Özkan-Gürdal, Sibel - Tokuç, Burcu - Zuhur, Sayid Shafi. “Postoperative frequency of normocalcemic elevated parathormone in patients surgically treated for primary hyperparathyroidism: A single-center experience”. Medical Journal of Western Black Sea 10/1 (01 Nisan 2026): 106-115. https://doi.org/10.29058/mjwbs.1656011.
JAMA
1.Elbüken G, Bilen Oİ, Öztürk BO, Ağgül H, Özkan-Gürdal S, Tokuç B, Zuhur SS. Postoperative frequency of normocalcemic elevated parathormone in patients surgically treated for primary hyperparathyroidism: A single-center experience. Med J West Black Sea. 2026;10:106–115.
MLA
Elbüken, Gülşah, vd. “Postoperative frequency of normocalcemic elevated parathormone in patients surgically treated for primary hyperparathyroidism: A single-center experience”. Medical Journal of Western Black Sea, c. 10, sy 1, Nisan 2026, ss. 106-15, doi:10.29058/mjwbs.1656011.
Vancouver
1.Gülşah Elbüken, Ogün İrem Bilen, Beyza Olcay Öztürk, Hünkar Ağgül, Sibel Özkan-Gürdal, Burcu Tokuç, Sayid Shafi Zuhur. Postoperative frequency of normocalcemic elevated parathormone in patients surgically treated for primary hyperparathyroidism: A single-center experience. Med J West Black Sea. 01 Nisan 2026;10(1):106-15. doi:10.29058/mjwbs.1656011

Batı Karadeniz Tıp Dergisi, Zonguldak Bülent Ecevit Üniversitesi tarafından yayımlanan, uluslararası, hakemli ve açık erişimli bir dergidir. İlk sayısı 2017 yılında yayımlanan dergi, yılda üç kez (Nisan, Ağustos ve Aralık aylarında) yayımlanmakta olup Türkçe ve İngilizce makalelere yer verir.