Impact of Surgical Mask, FFP2 Mask and FFP3 Mask (With and Without Exhalation Valve) on Exercise Tolerance and Blood Gas Parameters of Patients With Known Lung Disease and Long-term Oxygen Therapy (FFP-O2)

University Hospital Regensburg

Status: Completed

Conditions: Longterm Oxygen Therapy; Face Mask

Treatments: Diagnostic Test: Spiroergometry; Diagnostic Test: 6-MWT

Study type: Observational

Funder types: Other

Identifiers

NCT05931016

22-3165-101

Details and patient eligibility

About

The aim of the study is to find out how blood gas parameters change under the use of surgical mask, FFP2 masks and FFP3 masks (with and without exhalation valve) in patients with known lung disease and long-term oxygen therapy.

In particular, the question arises whether patients become hypoxemic or hypercapnic by using a mask. Or whether wearing a mask increases oxygen saturation by its reservoir function.

Enrollment: 72 patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Known lung disease and
• LTOT
• informed consent

Exclusion criteria

• Severe disease with contraindication for stress testing (e.g. myocardial infarction, acute pulmonary embolism, acute heart failure)
• Acute exacerbation of lung disease

Trial design

72 participants in 1 patient group

Patients with known lung disease and LTOT (long term oxygen therapy)

Description:

Patients with i.e. interstitial lung, emphysema, pulmonary hypertension or COPD with the need for LTOT

Treatment:

Diagnostic Test: Spiroergometry

Diagnostic Test: 6-MWT