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KMID : 1011720160090010035
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International Journal of Thyroidology
2016 Volume.9 No. 1 p.35 ~ p.38
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Surgical Technique for the Functional Preservation of the Inferior Parathyroid Glands
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Park Young-Min
Lee Seok-Hwan
Lee Byung-Joo
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Abstract
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Background and Objectives: The inferior parathyroid glands receive their blood supply from the inferior thyroid artery. The anatomic relationship of this artery and the recurrent laryngeal nerve can assume three different patterns. To maintain the vascular supply of the inferior parathyroid glands during central neck dissection, we considered the anatomic relationship of these structures in our surgical approach.
Materials and Methods: Fibrofatty tissue in the central neck compartment was removed by dissection proceeding along the recurrent laryngeal nerve. During the dissection, care was taken not to injure the vascular supply of the inferior parathyroid gland.
Results: For an inferior parathyroid gland that receives its blood supply from the posterolateral vascular pedicle, preservation is achieved by performing the dissection along the recurrence laryngeal nerve on the gland’s medial side. In patients in whom the inferior thyroid artery travels deep to the right recurrent laryngeal nerve, such that the right parathyroid gland receives its blood supply from the posteromedial vascular pedicle, central neck dissection should be performed carefully along the lateral side of the gland to preserve the pedicle.
Conclusion: Preservation of inferior parathyroid gland function requires a detailed understanding of the anatomic relationship between the inferior thyroid artery and recurrent laryngeal nerve. The direction of the dissection along the nerve should be adjusted according to its anatomic relationship to the inferior thyroid artery.
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KEYWORD
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Parathyroid gland, Hypoparathyroidism, Neck dissection
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