Comparison of endoscopic bilateral areolar and robotic-assisted bilateral axillo-breast approach thyroidectomy in differentiated thyroid carcinoma: a propensity-matched retrospective cohort study

Table 4 Postoperative laboratory data and complications of patients in the robotic and endoscopic groups

	Endoscopic Thyroidectomy (N = 42)	Robot-assisted Thyroidectomy (N = 135)	P
Postoperative total calcium (ng/mL)	2.19 ± 0.14	2.14 ± 0.13	0.068
Postoperative PTH^a (pg/mL)	21.1 ± 12.4	20.7 ± 15.1	0.659
Hypocalcemia(n)^b
Transient	8 (19.0%)	46 (34.1%)	0.065
Permanen	0	0	-
Hypoparathyroidism(n)^c
Transient	19 (74.8%)	17 (74.8%)	0.331
Permanen	0	0	-
Infection	0	0	-
Bleeding	0	0	-
Chyle leakage	0	2 (1.5%)	1.0^d
RLN injury	0	0	-
Flap necrosis	0	0	-
Seroma	0	1 (0.7%)	1.0^d

Value are means ± SD
Values are numbers of patients(percentages) unless otherwise indicated
^aPTH parathyroid hormone
^bHypocalcemia: calcium < 2.08 ng/mL or symptom ( +) after total thyroidectomy
^cHypoparathyroidism: parathyroid hormone < 15.0 pg/mL after total thyroidectomy
^dFisher’s exact test

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