Effects of active localization and vascular preservation of inferior parathyroid glands in central neck dissection for papillary thyroid carcinoma

Table 1 General characteristics of the patients

			P
	A group (n = 89)	B group(n = 108)
Age (years)	47.66 ± 12.10	43.85 ± 13.76	0.043^#
Gender (female)	79 (88.8%)	75 (69.4%)	0.003^▲
Hashimoto’s disease	18 (20.2%)	20 (18.5%)	0.763^▲
Goiter	50 (56.2%)	57 (52.8%)	0.633^▲
T stage
T1	63 (70.8%)	65 (60.2%)
T2	7 (7.9%)	14 (13.0%)
T3	17 (19.1%)	23 (21.3%)
T4	2 (2.2%)	6 (5.6%)	0.133*
CND range
Unilateral CND	58 (65.2%)	61 (56.5%)
Bilateral CND	31 (34.8%)	47 (43.5%)	0.243^▲
Lymph nodes retrieved
Unilateral CND	9.03 ± 4.701	10.67 ± 4.668	0.059^#
Bilateral CND	14.55 ± 8.045	15.23 ± 7.035	0.692^#
Ratio of metastasis	43 (48.3%)	77 (71.3%)	0.001^▲
Ratio of IPTX	11 (12.4%)	8 (7.4%)	0.241^▲
Ratio of AIPGS	18 (20.2%)	11 (10.2%)	0.048^▲
Pre-PTH (pg/ml)	43.40 (34.90,58.75)	43.80 (33.83,60.35)	0.835
Pre-Ca (mmol/L)	2.31 (2.23,2.38)	2.32 (2.25,2.39)	0.424
Postoperative complications
Hemorrhage	1 (1.1%)	2 (1.9%)	1.000^▲
Incision infection	1 (1.1%)	1 (1.1%)	1.000^▲
Transient RLN injury	2 (2.2%)	3 (2.8%)	1.000^▲
Permanent RLN injury	1 (1.1%)	1 (0.9%)	1.000^▲
Postoperative hospital stay	5.20 (± 3.28)	5.26 (± 2.08)	0.892^#

T staging according to 8th edition TNM staging system of AJCC
Ratio of metastasis number of patients with lymph nodes metastasis/number of patients studied, Ratio of IPTX number of patients underwent inadvertent parathyroidectomy pathologically confirmed in specimens/number of patients studied, Ratio of AIPTS number of patients on who auto-transplantation of inferior parathyroid glands were carried out/number of patients studied, Pre-PTH preoperative PTH, Pre-Ca preoperative total calcium
*Mann-Whitney U test
^#Student’s t test
^▲Pearson chi-square test or Fisher’s exact test

ISSN: 1477-7819