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  • Title: Thoracoscopic removal of mediastinal parathyroid glands: a critical appraisal of an emerging technique.
    Author: Randone B, Costi R, Scatton O, Fulla Y, Bertagna X, Soubrane O, Bonnichon P.
    Journal: Ann Surg; 2010 Apr; 251(4):717-21. PubMed ID: 19858697.
    Abstract:
    OBJECTIVE: To retrospectively evaluate the feasibility of thoracoscopic removal of mediastinal parathyroids. SUMMARY BACKGROUND DATA: Mediastinal exploration to resect ectopic parathyroid(s) is needed in approximately 2% of cases in hyperparathyroidism. Recent advances in thoracoscopic surgery allow for a minimally invasive treatment. METHODS: From 1999 through 2007, 13 patients affected by primary hyperparathyroidism (11 females, mean age 60 years, range: 22-88) underwent thoracoscopic removal of mediastinal parathyroids. Scintigraphy produced positive results in 11 of 13 cases, computed tomography scan in 9 of 10, parathyroid hormone venous sampling in 10 of 10 patients, and magnetic resonance imaging in 5 of 7. Right thoracoscopic access was used in 9 patients, left in 4. Postoperative outcome was analyzed. RESULTS: Thoracoscopy enabled retrieval of mediastinal parathyroids in 10 of 13 (78%) cases. Mean operating time was 92 minutes (range: 50-240). One procedure (8%) was converted. No perioperative deaths/major complications occurred. Mild complications occurred in 2 of 13 (15%) patients (pneumothorax/pneumonia, transient recurrent nerve palsy). Mean hospital stay was 4.7 days (range: 2-15). At a mean follow-up of 73 months (range: 16-105), parathyroid hormone and calcium venous concentrations were high in 3 patients. Unsuccessful procedures were related to doubtful or non-concordant preoperative localization. CONCLUSIONS: The thoracoscopic approach for mediastinal parathyroidectomy is feasible and safe. An accurate preoperative work-up should be standardized to avoid useless procedures. In case of negative preoperative localization of the abnormal gland, thoracoscopy should not be adopted as a diagnostic tool.
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