The Role of Immediate Recurrent Laryngeal Nerve Reconstruction for Thyroid Cancer Surgery

Table 2

Preoperative and postoperative voice data.

	Patient No.	Mucosal wave		Glottal closure		MPT (sec)		MFR (ml/sec)		Grade		Roughness		Breathiness
		Preop	Postop	Preop	Postop	Preop	Postop	Preop	Postope	Preope	Postop	Preop	Postop	Preop	Postop
Group I	1	1	3	1	3	8.9	26.5	184.0	86.0	1	0	0	0	1	0
	2	1	2	2	2	6.2	19.9	109.0	70.0	2	0	1	0	1	0
	3	3	3	2	3	9.6	13.5	116.0	104.0	0	0	0	0	0	0
	5	1	2	2	2	8.7	16.2	176.0	168.0	1	0	1	0	1	0
	6	0	2	0	3	2.7	10.6	932.0	146.0	2	1	2	1	2	1
	8	1	3	2	3	6.5	10.4	114.0	88.0	1	0	0	0	1	0
	Mean ± SD	$1.2\pm 1.0$	$2.5\pm 0.5$	$1.5\pm 0.8$	$2.7\pm 0.5$	$7.1\pm 2.6$	$16.2\pm 6.2$	$271.8\pm 325$	$110.3\pm 38.4$	$1.2\pm 0.8$	$0.2\pm 0.4$	$0.7\pm 0.8$	$0.2\pm 0.4$	$1.0\pm 0.6$	$0.2\pm 0.4$
Group II	4	3	2	3	3	22.2	25.4	61.0	62.0	0	0	0	0	0	0
	7	NA	3	NA	3	NA	14.9	NA	64.0	NA	0	NA	0	NA	0
	9	1	1	3	3	22.4	24.3	60.0	102.0	2	1	1	1	2	1
	10	IV	IV	IV	IV	11.3	11.5	41.0	78.0	0	0	0	0	0	0
	11	NA	2	NA	3	NA	12.0	NA	168.0	NA	0	NA	0	NA	0
	12	NA	3	NA	3	NA	17.7	NA	168.0	NA	0	NA	0	NA	0
	Mean ± SD	2.0± 1.4	2.2 ± 08	3.0 ± 0.0	3.0 ± 0.0	18.6 ± 6.4	17.6 ± 6.0	54.0 ± 11.3	107 ± 49.4	0.7 ± 1.2	0.2 ± 0.4	0.3 ± 0.6	0.2 ± 0.4	0.7 ± 1.2	0.2 ± 0.4

NA: not assessed, IV: invisible glottis during phonation, MPT: maximum phonation time, and MFR: mean airflow rate.