• Shuai Xue, Peiyou Ren, Peisong Wang, and Guang Chen.
• Department of Thyroid Surgery, The 1st hospital of Jilin University, Changchun, 130021, People's Republic of China.
• Sci Rep. 2018 Aug 9; 8 (1): 11936.

AbstractWhether we should use carbon nanoparticle (CN) routinely in thyroid surgery is still controversial. 406 papillary thyroid cancer (PTC) patients who underwent total thyroidectomy (TT) with bilateral central lymph node dissection (CLND) from January 2010 to December 2012 were retrospectively analyzed. The incidence of transient hypoparathyroidism and hypocalcemia in CN group was significantly lower than the control group at second, fifth day after surgery (P = 0.004, 0.042, 0.002 and 0.045 respectively). However, no significant difference existed between the two groups about the permanent hypoparathyroidism and hypocalcemia (P = 1.000). Total number of central lymph nodes and metastatic lymph nodes in CN group were more than those in control group (P = 0.031 and 0.038 respectively). However, recurrence was not significantly different between the two groups after at least 5-year follow up (P = 0.7917). In the subgroup of prophylactic and therapeutic CLND study, no significant difference existed between the two groups (P = 0.5295 and 0.8459 respectively). CN significantly help in identifying the parathyroid glands in surgery and increased the number of lymph nodes in central compartment. However, we should not exaggerate the function of CN since it couldn't improve the permanent hypoparathyroidism and recurrence in PTC patients who underwent TT with bilateral CLND.

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