EVALUATION STUDIES
JOURNAL ARTICLE
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Surgeon-performed ultrasonography as an adjunct to minimally invasive radio-guided parathyroidectomy in 100 consecutive patients with primary hyperparathyroidism.

Endocrine Practice 2008 January
OBJECTIVE: To examine whether surgeon-performed ultrasonography (SPU) in patients with primary hyperparathyroidism and negative preoperative sestamibi scans improves adenoma localization, increases the directed unilateral exploration rate, and reduces operative time and length of hospital stay.

METHODS: We retrospectively analyzed 100 consecutive patients with primary hyperparathyroidism encountered between January 1, 2005, and March 31, 2007. Patients underwent preoperative sestamibi scanning and SPU. Minimally invasive radio-guided parathyroidectomy (MIRP) was performed on patients with positive sestamibi scans. In sestamibi scan-negative patients, unilateral exploration was performed with removal of the adenoma, which was submitted for frozen section. Accuracy, operative time, hospital length of stay, mortality, and morbidity were assessed.

RESULTS: Of 100 patients, 79 had positive sestamibi scans and underwent MIRP. Twenty-one had negative sestamibi scans, 18 of whom underwent SPU. Parathyroid adenoma was localized in 17 (94%) of the 18 patients. Operative time and length of hospital stay were not significantly different between sestamibi scan-negative patients who underwent SPU with directed unilateral exploration and sestamibi scan-positive patients who underwent MIRP (operative time: 46 minutes vs 38 minutes, respectively; length of hospital stay: 17.8 hours vs 16.1 hours, respectively). Operative time and length of hospital stay were significantly shorter in sestamibi scan-negative patients who underwent SPU with directed unilateral exploration and in patients who underwent MIRP than in historical controls who underwent 4-gland exploration (P<.01 for both outcomes). No morbidity or mortality was documented.

CONCLUSION: SPU localizes 94% of adenomas in sestamibi scan-negative patients, which allows for directed unilateral exploration and results in operative time and length of hospital stay not significantly different from patients undergoing MIRP.

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