Parathyroid adenomas: is bilateral neck exploration necessary?

Area of Science:

• Endocrinology
• Surgical Oncology
• Nuclear Medicine

Background:

• Traditional primary hyperparathyroidism surgery involves bilateral neck exploration.
• Recent studies suggest unilateral exploration, aided by advanced localization, may be sufficient.
• This study evaluates the efficacy of localization-aided unilateral neck exploration.

Purpose of the Study:

• To determine if localization study-aided unilateral neck exploration is sufficient for curing primary hyperparathyroidism.
• To compare the outcomes of unilateral versus bilateral neck exploration.
• To assess the role of specific imaging modalities in guiding surgical strategy.

Main Methods:

• Retrospective chart review of 68 patients with primary hyperparathyroidism.
• Analysis of patients treated with unilateral neck exploration (n=44) versus bilateral neck exploration (n=24).
• Evaluation of preoperative localization studies, particularly technetium 99m sestamibi (T99mS) scans.

Main Results:

• Technetium 99m sestamibi scans correctly identified adenoma locations in all 15 cases used.
• All patients undergoing unilateral neck exploration were cured.
• Surgical exploration (bilateral) also achieved a cure in all cases.

Conclusions:

• Unilateral neck exploration, guided by T99mS scans showing a solitary lesion, is a viable initial approach for primary hyperparathyroidism.
• Biopsy of the contralateral gland is recommended if normal; otherwise, bilateral exploration is advised.
• T99mS scan-guided unilateral exploration offers a successful alternative to traditional bilateral exploration.