J Clin Med Res

Journal of Clinical Medicine Research, ISSN 1918-3003 print, 1918-3011 online, Open Access

Article copyright, the authors; Journal compilation copyright, J Clin Med Res and Elmer Press Inc

Journal website http://www.jocmr.org

Original Article

Volume 3, Number 6, December 2011, pages 279-284

Short-Term Effects of High-Frequency Chest Compression and Positive Expiratory Pressure in Patients With Cystic Fibrosis

Figure

Figure 1. Mean and individual values of sputum expectoration after PEP and HFCC in 34 CF patients.

Tables

**Table 1.** Demographics of Enrolled Participants
Demographics and baseline characteristics	value
BMI: body mass index; SpO₂: transcutaneous pulsed arterial oxygen saturation; FEV₁: forced expiratory volume in 1 second. Data are presented as mean ± SD or ratio as appropriate.
Age (year)	26 ± 6.5
Gender (M / F)	14 / 20
BMI (kg/m²)	19.72 ± 6.35
SpO₂ (%)	97.7 ± 1.4
FEV₁ (% pred)	67 ± 17

**Table 2.** Lung Function Values: Before (Pre) and After (Post) PEP and HFCC Treatments
Device	FEV₁		FEF_25-75 (%)		FVC (%)		SpO₂ (%)
	(% predicted)		FEF_25-75 (%)		FVC (%)		SpO₂ (%)
	pre	post	pre	post	pre	post	pre	post
FEV₁: forced expiratory volume in 1 second; FEF_25-75: forced expiratory flow 25 - 75%; FVC, forced vital capacity. *P < 0.001. No statistically significant difference was found in spirometric values before and after both treatments. A statistically significant decrease in SpO₂ values was found after PEP treatment.
HFCC	67 ± 17	66 ± 17	34 ± 21	33 ± 21	88 ± 17	87 ± 16	97 ± 1.6	97 ± 1.2
PEP	67 ± 16	67 ± 16	34 ± 20	34 ± 19	88 ± 15	87 ± 15	98 ± 1.0	97 ± 1.2*

**Table 3.** Borg Dyspnea Scale Before (Pre) and After (Post) PEP and HFCC Treatments
	Pre	Post	P value
Both treatments induced a statistically significant increase in Borg scale for dyspnea, without differences between them.
HFCC	0.7 ± 0.9	1.5 ± 1.7	< 0.01
PEP	0.9 ± 1.2	1.6 ± 1.6	< 0.001