Analysis of the Effectiveness of Arytenoidectomy and Posterior Cordectomy with the Use of CFD Airflow Measurements in Patients with BVFP: A Retrospective Study

Table 1

Statistical results for measured parameters before and after the surgery.

Parameter	Operation dependency	M	SD	Me	IQR	Min	Max	Sk.
S	Before	18.67	8.49	18.04	11.27	1.2	37.73	0.14
	After	41.83	15.1	38.09	21.44	18.1	86.42	0.73
FEV1	Before	1.54	0.67	1.44	1.1	0.34	2.72	0.18
	After	2.07	0.66	2.02	0.91	0.55	3.44	−0.24
FVC	Before	2.38	0.97	2.56	1.47	0.4	4.09	−0.29
	After	2.89	0.85	2.98	1.08	1.26	4.88	0.17
PEF	Before	2.47	1.15	2.08	1.57	0.88	5.55	0.93
	After	3.66	1.26	3.63	1.33	0.62	6.33	−0.37
winlet for PEF	Before	5.04	2.35	4.24	3.19	1.8	11.31	0.94
	After	7.45	2.57	7.4	2.72	1.26	12.9	−0.37
wmax for PEF	Before	185.21	107.47	162.07	134.96	50.88	460.69	1
	After	126.89	62.01	122.65	78.86	37.36	341.21	1.22
PEFΔPCFD	Before	46,747	81,723.3	20,109	28,906	2,195	446,989	3.85
	After	14,493	15,692.8	11,713	13,392	938	86,764	3.11
wmax CFD	Before	7.39	7.24	4.97	3.49	2.93	42.09	3.7
	After	2.94	1.14	2.88	1.36	1.38	6.06	1.05
ΔPCFD	Before	170.77	711.13	26.47	40.52	6.23	4111	5.39
	After	7.54	6	6.1	5.67	1.36	28.88	1.91
VAS	Before	8.42	1.52	9	2	4	10	−1.02
	After	3.85	2.48	4	2	1	10	1.37
MRC	Before	4.3	0.77	4	1	2	5	−0.98
	After	2	1.2	2	1	1	5	1.44