Carbon Nanoparticles for Thyroidectomy and Central Lymph Node Dissection for Thyroid Cancer.

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    • Subject Terms:
      LYMPHADENECTOMY; THYROID cancer; NECK dissection; RECURRENT laryngeal nerve; THYROIDECTOMY; PARATHYROID glands; LYMPH nodes
    • Abstract:
      Purpose: To evaluate whether the application of carbon nanoparticles (CNs) in total or near-total thyroidectomy combined with central lymph node dissection (CLND) for thyroid cancer (TC) is beneficial to lymph node dissection, parathyroid, and recurrent laryngeal nerve (RLN) protection. Methods: Relevant literatures were systematically searched on PubMed, EMBASE, and Cochrane Library Databases until March 31, 2021. All analyses were performed using Revman Manager 5.3 software. The main results were the number of central lymph nodes, the number of central metastatic lymph nodes, accidental parathyroidectomy, postoperative hypoparathyroidism, postoperative hypocalcemia, and postoperative transient RLN paralysis. Results: This meta-analysis identified 4 randomized controlled trials and 8 non-randomized controlled trials comprising 1870 patients. Compared with the control, the use of CNs was helpful to dissect more central lymph nodes (weighted mean difference [WMD]: 3.55, 95% confidence interval [CI]: 2.12-4.98, P <.00001) and central metastatic lymph nodes (WMD: 1.69, 95% CI:1.31-2.08, P <.00001), lower rate of accidental parathyroidectomy (odds ratio [OR]:.33, 95% CI:.23-.47, P <.00001), lower rate of both postoperative transient hypoparathyroidism (OR:.40, 95% CI:.31-.51, P <.00001), and transient hypocalcemia (OR:.37, 95% CI:.27-.51, P <.00001). However, there were no statistical difference between the groups for postoperative permanent hypoparathyroidism (OR:.29, 95% CI:.06-1.28, P =.10), postoperative permanent hypocalcemia (OR:.94, 95% CI:.10-9.16, P =.96), and postoperative transient RLN paralysis (OR:.66, 95% CI:.40-1.12, P =.12). Conclusions: The application of CNs in total or near-total thyroidectomy combined with CLND for TC can better dissect the central lymph nodes and protect parathyroid glands (PGs) and their function. [ABSTRACT FROM AUTHOR]