Table III.

Change in functional and symptom status after preoperative rehabilitation and after lung resection (n = 83)

Parameter	Before PPR	After PPR	After resection	Mean difference (after PPR-before PPR)		Mean difference (after resection-after PPR)		Mean difference (after resection-before PPR)
				n (95% CI)	p	n (95% CI)	p	n (95% CI)	p
6MWD [m]	360 ±88	416 ±81	336 ±81	56 (45, 67)	< 0.001	–80 (–91, –69)	< 0.001	–24 (–33, –15)	< 0.001
Sat O2% at rest	96.9 ±0.6	97.3 ±0.6	97.3 ±0.8	0.4 (0.2, 0.6)	0.002	0 (–0.2, 0.2)	> 0.999	0.4 (0.1, 0.7)	0.016
Sat O2% after exerc.	95.5 ±0.7	96.3 ±0.7	96.3 ±0.7	0.8 (0.5, 1.0)	< 0.001	0 (–0.2, 0.2)	NS	0.8 (0.5, 1.1)	< 0.001
RR at rest	18.7 ±1.9	17.9 ±1.5	20.6 ±1.9	–0.7 (–1.0, –0.4)	< 0.001	2.7 (2.2, 3.1)	< 0.001	1.9 (1.4, 2.4)	< 0.001
RR after exercise	22.1 ±3.9	20.5 ±2.7	24.4 ±2.8	–1.6 (–2.4, –0.8)	< 0.001	3.9 (3.3, 4.5)	< 0.001	2.2 (1.3, 3.1)	< 0.001
HR at rest	68.8 ±3.7	67.8 ±3.6	70.7 ±3.4	–0.9 (–1.6, –0.3)	0.009	2.9 (2.3, 3.5)	< 0.001	1.9 (1.2, 2.7)	< 0.001
HR after exercise	73.6 ±4.5	71.4 ±4.0	75.1 ±3.9	–2.2 (–3.1, –1.4)	< 0.001	3.8 (2.9, 4.7)	< 0.001	1.5 (0.5, 2.5)	0.009
Borg at rest	2.3 ±0.9	1.4 ±0.8	2.0 ±0.6	–1.0 (–1.2, –0.7)	< 0.001	0.7 (0.5, 0.9)	< 0.001	–0.3 (–0.6, 0)	NS
Borg after exercise	3.4 ±0.9	2.2 ±0.8	3.0 ±0.7	–1.1 (–1.3, –0.9)	< 0.001	0.8 (0.5, 1.1)	< 0.001	–0.3 (–0.7, 0)	NS
VAS at rest	2.9 ±0.9	1.9 ±0.9	2.6 ±0.7	–1.0 (–1.2, –0.8)	< 0.001	0.7 (0.4, 0.9)	< 0.001	–0.4 (–0.7, 0)	NS
VAS after exercise	3.8 ±1.0	2.6 ±0.9	3.4 ±0.8	–1.3 (–1.5, –1.0)	< 0.001	0.9 (0.5, 1.2)	< 0.001	–0.4 (–0.8, 0)	NS

PPR – preoperative pulmonary rehabilitation, 6MWD – 6 minute walking distance, Sat O₂ – blood saturation with O₂, RR – respiratory rate (1/min), HR – heart rate (1/min), Borg – units on the Borg scale (dyspnoea), VAS – visual analogue scale units (dyspnoea)