25th ESICM ANNUAL CONGRESS, Portugal, 1 - 04 October 2012, no.38, pp.167-168
Conference Paper / Full Text
Erciyes University Affiliated:
INTRODUCTION. High frequency chest wall oscillation therapy (HFCWO) is used for
improvement in airway clearance. Postoperative patients requiring intensive care at risk to
develop pneumonia and clearance of secretions may be difficult due to type of surgery and
pain. Enhanced mucociliary clearance with HFCWO devices previously used in cystic
fibrosis COPD and thoracic surgery patients.
OBJECTIVES. We studied short term effects of HFCWO on postoperative abdominal
METHODS. Nonintubated postoperative abdominal surgery patients requiring intensive
care included into the study. Patients were randomized either to standard chest physiotherapy
group (early mobilization, incentive spirometry, postural drainage) or standard chestphysiotherapy plus HFCWO group. HFCWO was applied for 10 min at 12 Hz with. Laboratory
data were collected for 3 days and the patients were followed until discharge from
RESULTS. We included 30 patients to each group. Mean age was 61 ± 13 years and 33
was male 27 was female. Mean body mass index was 26 ± 5 kg/m2. APACHE II scores
were 12 ± 3 and 10 ± 3 in control and therapy groups. Statistically significant difference
occurred only in second day PaO2, SaO2 and third day arterial pH values which were
clinically insignificant. Mean ICU and hospital stay was 5.2 ± 2.8, 4.5 ± 2.6 and
17.9 ± 14.7, 17.5 ± 11.0 days in control and therapy groups respectively (p[0.05).
Intubation and mechanical ventilation were required for 2 patients in control and for 1
patient in therapy groups. Noninvasive mechanical ventilation was performed in 2 control
patients while it is required for therapy group. Three patients in control group and 2 patients
in therapy group died. Nosocomial pneumonia were developed in 5 (16.6 %) control group
patients and in 2 (6.6 %) therapy group patients (p[0.05). There were no complications
related to HFCWO therapy.
CONCLUSIONS. HCFWO therapy did not help to improve physiological parameters and
has no effect on duration of ICU and hospital stay, mortality. Number of nosocomial
pneumonia attacks were lower with HFCWO but did not reach to statistical difference.
HFCWO is a safe technique which we did not observe any complications.