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Maweja S, Sebag F, Hubbard J, Giorgi R, Henry JF. Immediate and Medium-Term Results of Intraoperative Parathyroid Hormone Monitoring During Video-Assisted Parathyroidectomy. Arch Surg. 2004;139(12):1301–1303. doi:10.1001/archsurg.139.12.1301
Using an intraoperative parathyroid hormone (IOPTH) assay during video-assisted parathyroidectomy by lateral approach is useful in patients with sporadic primary hyperparathyroidism, and the medium-term results of surgery are excellent.
Retrospective study of patients with sporadic primary hyperparathyroidism following video-assisted parathyroidectomy by lateral approach with IOPTH measurement.
Of 394 patients with sporadic primary hyperparathyroidism, 200 (67%) were eligible for video-assisted parathyroidectomy by lateral approach: patients in whom a single enlarged gland was clearly localized by ultrasonography, sestamibi scintigraphy, or both.
Main Outcome Measures
An IOPTH assay was used in 198 patients. Intraoperative parathyroid hormone was measured at induction, skin incision, ablation, and 5 and 15 minutes after ablation.
The immediate results of the IOPTH assay were true positive in 187 cases (94.4%), true negative in 8 cases (4%), false negative in 2 cases (1%), and false positive in 1 case (0.5%). The overall accuracy of the IOPTH assay was 98.5%. All patients were normocalcemic postoperatively. The median follow-up was 20.5 months in 150 reviewed: 149 patients (99.4%) were normocalcemic, 17 patients (11.3%) had an elevated PTH level with normocalcemia, and 1 patient (0.6%) had recurrent primary hyperparathyroidism.
In our experience, IOPTH monitoring during video-assisted parathyroidectomy by lateral approach is useful in detecting multiple gland disease not suspected by preoperative localization studies. Overall, IOPTH monitoring predicts medium-term normocalcemia with a success rate of 98.5% in patients with sporadic primary hyperparathyroidism.
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