Diaphragm motion and lung function prediction in patients operated for lung cancer – a pilot study on 27 patients

Table 1 Preoperative and postoperative values of the lung function parameters

	Mean	SD	Δ preop – postop		Sig-(2tailed)
	Mean	SD	Mean	SD	Sig-(2tailed)
preop FEV₁ (ml)	2711.85	864.92	444.07	578.8	< 0.001
postop. FEV₁ (ml)	2267.78	861.08	444.07	578.8	< 0.001
preop FEV₁ (%)	90.19	21.57	14.58	17.74	< 0.001
postop. FEV₁ (%)	75.61	22.11	14.58	17.74	< 0.001
preop VC (ml)	3771.48	931.22	692.33	834.91	< 0.001
postop. VC (ml)	3079.15	1073.09	692.33	834.91	< 0.001
preop VC (%)	100.44	15.33	17.79	22.09	< 0.001
postop. VC (%)	82.66	23.49	17.79	22.09	< 0.001
Tiff. preop. (%)	71.69	11.84	-.19	8.49	> 0.05
Tiff. postop. (%)	71.88	12.49	-.19	8.49	> 0.05
preop FEV₅₀ (%)	60.67	30.62	10.19	19.70	> 0.05
postop. FEV₅₀ (%)	50.48	22.05	10.19	19.70	> 0.05
preop FEV₂₅ (%)	49.22	24.42	.67	27.22	> 0.05
postop. FEV₂₅ (%)	48.56	27.98

-FEV₁: forced expiratory volume in the 1^st second, VC. Vital capacity; Tiff: Tiffeneau index (100FEV₁7VC), FEF₅₀: forced expiratory flow at 50% VC; FEF₂₅: forced expiratory flow at 25% VC; Δ preop – postop: difference between preoperative and postoperative value.

ISSN: 1749-8090