Idiopathic pulmonary fibrosis (IPF) is a disease characterised with significant morbidity and poor prognosis. Dyspnoea and impaired exercise capacity are very common manifestations of the disease, and result in significant impairment of patients' quality of life. Although hypoxemia is common among subjects with IPF, published data on the effects of supplementary oxygen therapy on specific clinical outcomes among these patients are currently few, while the existing data on the potential benefits of oxygen supplementation to treat exercise-induced hypoxemia, in this patient population, are even more controversial. Based on the aforementioned, the purpose of this prospective, cross-over clinical trial is to investigate the acute effects of supplemental oxygen administration on the: a) exercise capacity, b) severity of dyspnea, c) cerebral oxygenation, b) muscle oxygenation, and e) hemodynamic profile, as compared to delivery of medical air (sham oxygen), in a group of patients with IPF, without resting hypoxemia, during steady state cardiopulmonary exercise testing (CPET).
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Enrollment
15
Oxygen supplementation (40%) via Venturi mask
Medical air supplementation via Venturi mask
"G. Papanikolaou" General Hospital
Thessaloniki, Greece
Exercise duration
Exercise duration (minutes) of steady state cardiopulmonary exercise testing until exhaustion
Time frame: through study completion, an average of a year
Dyspnea
maximum dyspnea assessed with modified Borg dyspnea scale (range from 0: nothing at all to 10: maximum dyspnea), during steady state cardiopulmonary exercise testing
Time frame: through study completion, an average of a year
Fatigue
maximum fatigue assessed by Borg's Rating of Perceived Exertion Scale (range from 6: no exertion to 20: maximal exertion), during steady state cardiopulmonary exercise testing
Time frame: through study completion, an average of a year
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