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Aygün N, İşgör A, Uludağ M. The Effectiveness of Preoperative Ultrasonography and Scintigraphy in the Pathological Gland Localization in Primary Hyperparathyroidism Patients. Sisli Etfal Hastan Tip Bul. 2019;53(4):379-384doi: 10.14744/SEMB.2019.37097.
Aygün, N., İşgör, A., & Uludağ, M. (2019). The Effectiveness of Preoperative Ultrasonography and Scintigraphy in the Pathological Gland Localization in Primary Hyperparathyroidism Patients. Sisli Etfal Hastanesi tip bulteni, 53(4), 379-384. https://doi.org/10.14744/SEMB.2019.37097
Aygün, Nurcihan, et al. "The Effectiveness of Preoperative Ultrasonography and Scintigraphy in the Pathological Gland Localization in Primary Hyperparathyroidism Patients." Sisli Etfal Hastanesi tip bulteni vol. 53,4 (2019): 379-384. doi: https://doi.org/10.14744/SEMB.2019.37097
Aygün N, İşgör A, Uludağ M. The Effectiveness of Preoperative Ultrasonography and Scintigraphy in the Pathological Gland Localization in Primary Hyperparathyroidism Patients. Sisli Etfal Hastan Tip Bul. 2019 Dec 03;53(4):379-384. doi: 10.14744/SEMB.2019.37097. eCollection 2019. PMID: 32377112; PMCID: PMC7192300.
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Sisli Etfal Hastan Tip Bul. 2019 Dec 03;53(4):379-384. doi: 10.14744/SEMB.2019.37097. eCollection 2019.

The Effectiveness of Preoperative Ultrasonography and Scintigraphy in the Pathological Gland Localization in Primary Hyperparathyroidism Patients.

Sisli Etfal Hastanesi tip bulteni

Nurcihan Aygün, Adnan İşgör, Mehmet Uludağ

Affiliations

  1. Department of General Surgery, Health Sciences University, Sisli Hamidiye Etfal Training and Research Hospital, Istanbul, Turkey.
  2. Department of General Surgery, Bahcesehir University, Faculty of Medicine, Istanbul, Turkey.

PMID: 32377112 PMCID: PMC7192300 DOI: 10.14744/SEMB.2019.37097

Abstract

OBJECTIVES: Primary hyperparathyroidism (pHPT) is a common disease, and its curative treatment is surgical. Nowadays, preoperative localization studies have become standard before surgical treatment, and the first stage imaging methods are ultrasonography and/or scintigraphy. With the contribution of these studies to the localization of the pathological gland, focused surgery has become the first standard of choice. In this study, we aimed to evaluate the efficacy of ultrasonography and scintigraphy in the preoperative localization of the pathologic gland or glands in patients who underwent surgical treatment and cure for pHPT.

METHODS: In this study; the data of the biochemically diagnosed pHPT patients, who had Tc 99m-MIBI scintigraphy and/or ultrasonography for localisation preoperatively, were evaluated retrospectively. The lesion, which was positive in USG or scintigraphy for localization, was evaluated according to the neck side or neck quadrant, and the results were compared with intraoperative localization findings. The effectiveness of both methods and combinations was evaluated with the localization rates, sensitivity and positive predictive values (PPV). The three methods were compared with the Youden index (J).

RESULTS: The mean age of 380 patients included in this study was 54.8±12.8 years (20-83). Three hundred eight of them were female, and 72 were male. Scintigraphy was performed in 339 patients, USG was performed in 344 patients, and both USG and scintigraphy were performed in 306 patients. One hundred twenty patients (32%) underwent bilateral neck exploration (BNE), and 260 patients (68.4%) underwent minimally invasive parathyroidectomy (MIP) (unilateral exploration or focused surgery). Single adenoma was detected in 358 (94%), double adenoma in 10 (3%) and hyperplasia in 12 (3%) patients.Localization rates of USG, scintigraphy, USG and scintigraphy combinations were 53%, 74%, 75%; their sensitivity was 56%, 85%, 89%; PPDs were 90%, 86%, 83%. The efficiency of scintigraphy is higher than USG (J: 0.743 vs 0.527). The contribution of scintigraphy to USG in combination with USG was limited (J: 0.743 vs 0.754).The localization rates of USG, scintigraphy, USG and scintigraphy combinations were 46%, 64%, 66%; their sensitivity was 51%, 83%, 88%; PPDs were 79%, 74%, 73%. The efficiency of scintigraphy is higher than that of USG (J: 0.64 vs 0.427). The contribution of scintigraphy to USG in combination with USG was limited (J: 0.64 vs 0.66).

CONCLUSION: In patients with pHPT, scintigraphy is a more effective method for USG as the first step preoperative imaging and should be preferred as the first method if there is no contraindication. A combination of scintigraphy with USG may contribute minimally to the efficacy of scintigraphy. It may be advantageous for early detection of the pathologic gland in patients with incompatible two imaging and initiating surgery on the positive side of the first scintigraphy. Scintigraphy and USG methods may allow successful MRP surgery in the majority of patients with pHPT.

Copyright: © 2019 by The Medical Bulletin of Sisli Etfal Hospital.

Keywords: Gland localisation; Primary hyperparathyroidism; scintigraphy; ultrsonography

Conflict of interest statement

Conflict of interest: None declared.

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