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Risk factors and consequences of incidental parathyroidectomy during thyroidectomy

Risk factors and consequences of incidental parathyroidectomy during thyroidectomy

American Surgeon 76(4): 436-441

The objectives of this retrospective study were to investigate the incidence, risk factors, and clinical significance of incidental parathyroidectomy during thyroidectomy. In this study, there were 315 patients who underwent thyroidectomy between 1996 and 2006. All the operations were performed by a single experienced surgeon (J.S.). Pathology reports on all specimens were reviewed and information regarding patient demographics, diagnosis, operative details, and postoperative complications were collected. A total of 315 thyroidectomies were performed: 101 total thyroidectomies (32.1%) and 214 subtotal thyroidectomies (67.9%). Two hundred and eighty patients were operated on for benign disease (88.9%) and 35 for malignant disease (11.1%). Incidental parathyroidectomy was identified in 32 cases (10.2%). Preoperative diagnosis of malignant disease (P = 0.009) and duration of the disease (P = 0.001) were significant predictors of incidental parathyroidectomy. Incidental parathyroidectomy was significantly correlated with postoperative hypoparathyroidism (P = 0.03). Transient postoperative hypoparathyroidism occurred in 18 cases (6%) and permanent in three cases (1%). The duration of the disease was the sole significant predictor of postoperative hypoparathyroidism (P < 0.001). Incidental parathyroidectomy seems to be the result of the use of extensive surgical procedures. The preoperative diagnosis of malignant disease and the delay of the operation, which leads to a more advanced thyroid disease, make the use of extensive surgical procedures necessary.

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Accession: 055579057

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PMID: 20420257

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