CIRCABREATH

Breathing, a sign of vitality.

A comprehensive breathing assessment: spirometry, plethysmography, nasal nitric oxide measurement and diffusing capacity (DLCO) to assess lung function and screen for respiratory conditions.

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Dr Matthieu Desplan, pulmonologist and sleep physician at the CIRCAE centre in Brussels

Dr Matthieu DesplanPulmonologist · Allergist · Sleep and sports medicine

Who is it for?

Unexplained breathlessness or exertional dyspnoea
Chronic cough, wheezing
Known or suspected asthma
Suspected COPD (screening in smokers)
Respiratory allergies
Breathing limitation on exertion or lung follow-up

The examinations

An assessment tailored to the clinical profile

The CIRCABREATH pathway begins with a specialist consultation, followed by respiratory examinations carried out according to your clinical needs.

First pulmonology consultation

Consultation · Specialist pulmonologist

An in-depth clinical assessment and referral to the most relevant examinations.

Analysis of respiratory symptoms (dyspnoea, cough, tightness, wheezing)
Assessment of medical and family history
Review of exposures (tobacco, environment, allergens)
Full respiratory clinical examination
Proposal of a personalised breathing assessment

Overnight oximetry: OtwoFellow

Home examination · Non-invasive

Analysis of overnight oximetry using the connected Oxyring. Assessment of the cardiovascular risk associated with apnoea.

Oxygen saturation (SpO₂) and heart rate
Pulse wave and Hypoxic Burden
PWAD: Pulse Wave Amplitude Drops (overnight vascular stress)

Pulmonary function tests (PFTs)

Gold-standard examination · Pulmonology

Essential tests for the diagnosis, severity assessment and follow-up of respiratory diseases.

Spirometry: FEV1, FVC, Tiffeneau ratio
Plethysmography: lung volumes and residual volume
CO diffusing capacity (DLCO): oxygen transfer into the blood
Measurement of airway resistance
Bronchodilator test: reversibility of obstruction

Exhaled nitric oxide measurement (FeNO)

Simple examination · Bronchial inflammation

A non-invasive marker of eosinophilic bronchial inflammation. A quick, painless examination.

Aids the diagnosis of asthma
Assessment of the level of airway inflammation
Monitoring the effectiveness of anti-inflammatory treatment
Adjustment of inhaled corticosteroid doses

Exercise challenge test

Cardio-respiratory examination · Exertion

Detects exercise-induced asthma, exercise hypoxaemia or unexplained dyspnoea.

Spirometry before and after exercise (FEV1, flow rates)
Oxygen saturation, heart rate and ECG
Continuous monitoring of reported symptoms

Objectives

Trigger and measure exercise-induced bronchoconstriction
Assess exercise tolerance
Adjust respiratory treatment

Allergy skin tests (Prick tests)

Allergy · Gold-standard diagnosis

Identification of allergic sensitisation to the main respiratory allergens.

Pollens, dust mites, animal dander, moulds
Reading after 15–20 min: results in mm

Indications

Asthma and allergic rhinitis
Allergic conjunctivitis
Assessment before allergen immunotherapy