Scan-directed mini-incision focused parathyroidectomy: how accurate is accurate enough?

Area of Science:

• Endocrinology
• Surgical Oncology
• Diagnostic Imaging

Background:

• Mini-incision focused parathyroidectomy (MI-FP) offers reduced morbidity compared to bilateral neck exploration (BNE).
• Preoperative localization of affected parathyroid glands relies on ultrasound and sestamibi scans.
• The optimal inter-scan concordance for MI-FP without compromising accuracy remains unclear.

Purpose of the Study:

• To determine the accuracy of individual and combined preoperative imaging for parathyroidectomy.
• To evaluate the impact of inter-scan concordance on the success of MI-FP.
• To compare the outcomes of MI-FP and BNE.

Main Methods:

• Retrospective analysis of 89 parathyroidectomies (2007-2014).
• Assessment of ultrasound and sestamibi scan accuracy individually and combined.
• Development and validation of a grading system (excellent, good, poor) for inter-scan concordance.

Main Results:

• Individual scan accuracy: 53% (ultrasound), 60% (sestamibi).
• Inter-scan concordance: excellent (35%), good (40%), poor (25%).
• Combined accuracy: 100% for excellent/good concordance, 13% for poor concordance. MI-FP was feasible in 75% of cases.

Conclusions:

• Good inter-scan concordance does not compromise parathyroidectomy accuracy.
• MI-FP can be safely performed in a higher percentage of patients than currently recommended.
• MI-FP achieves comparable surgical and endocrinological outcomes to BNE with significantly fewer complications.