The goals of operative treatment of primary hyperparathyroidism are (1) cure; (2) minimal invasion; and (3) cost-effectiveness. The optimal strategy is controversial. Retrospective review of was undertaken 66 previously unoperated patients having minimal-incision, full-neck exploration by one surgeon over 29 months. A group of 51 women and 15 men had open full neck exploration under general anesthesia through a small (25-40 mm) incision using specifically selected instruments; patients remained hospitalized overnight. Preoperative sestamibi scans were obtained before referral for 17 patients: 11 had localized disease, and 6 did not (65% sensitivity). Four parathyroid glands were identified in 98% of patients; intraoperative frozen section was used selectively on a median of one gland per patient. About 76% of patients had single-gland disease, 6% had two-gland disease, and 18% had four-gland hyperplasia. One patient had four normal cervical parathyroid glands and an aortopulmonary window parathyroid adenoma resected at thoracotomy 1 week later; preoperative sestamibi scans failed to localize his disease. There were no nerve injuries and a 98% cure rate after initial cervical exploration. Excluding the cost of the sestamibi scans, there was no difference between those who had preoperative localization and those who did not; 60% of hospital costs were operating room time-related. Minimal-incision parathyroidectomy is effective for curing hyperparathyroidism and has excellent cosmetic results with negligible scar. Preoperative sestamibi scanning had no impact on cure or treatment costs. Strategies to improve cost-effectiveness must address the substantial costs of anesthesia and operating room services.
This study shows the advantage of SCNBx to diagnose breast cancer and definitive operative care at a single procedure. The preoperative diagnosis of breast cancer eliminated positive operative margins and procedures to re-excise breast tissue. The use of SCNBx also saved approximately $1000 per patient compared with the use of NLBx. Our data suggest that SCNBx is the diagnostic procedure of choice for mammographically detected cancers.
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