Assessment of Asthma Mimics Among Newly Diagnosed Bronchial Asthma Patients

Zagazig University

Status: Completed

Conditions: Asthma (Diagnosis)

Treatments: Device: Fibreoptic bronchoscopy

Study type: Interventional

Funder types: Other

Identifiers

NCT05776537

ZU-IRB # 6576/6-12-2020

Details and patient eligibility

About

The aim of the study was to identify the percentage of patients in whom the diagnosis of current asthma was confirmed or ruled out after clinical, spirometric assessment and utilizing all the possible investigations with a six month follow up period for both groups.

Full description

The diagnosis of bronchial asthma relies on the existence of characteristic respiratory symptoms which are reversible and variable (diurnal and seasonal) with variable airflow limitation. Unfortunately, bronchial asthma may mimic different pulmonary and non-pulmonary diseases regarding their similar clinical presentations so accurate assessment is required to exclude other possible diagnosis before confirming the diagnosis of bronchial asthma.

There are various phenotypes of asthma as; atopic, non-atopic, and late-onset asthma, which may not be easily diagnosed in the community. Also, asthma may show intermittent versus a relapsing /remitting course, so it is difficult to be diagnosed by a single physician visit. Different studies have found that patients with bronchial asthma were treated empirically without full assessment either to ensure or exclude the asthma diagnosis.

Some symptoms as chest wheezes and breathlessness may be presented commonly in bronchial asthma and other mimic diseases as; chronic obstructive pulmonary disease, bronchiectasis, congestive heart failure, vocal cord disorders, hypersensitivity pneumonitis, endobronchial tumours, pulmonary embolism, aspiration syndromes, tracheal compression by a mediastinal mass and tracheomalacia. So, different physicians should put in mind those asthma mimics to be differentiated from asthmatic patients specially whose asthma symptoms are poorly controlled by anti- asthmatic medications.

Enrollment: 200 patients

Sex: All

Ages: 18 to 68 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• 1. Patients aged ≥ 18 years who had newly clinically diagnosed bronchial asthma (the diagnosis was achieved in the previous one year, to allow us to get the previous diagnostic reports) whether the diagnosis of asthma was initially made based on clinical assessment alone or both clinical and spirometric assessment. 2) Both sexes were included.

Exclusion criteria

• 1. Patients who were using long-term oral steroids that may mask the diagnosis; 2) unable to do spirometry or contra-indicated. 3) pregnancy. 4) Definite diagnosis of other chest diseases.

Trial design

Primary purpose: Diagnostic

Allocation: N/A

Interventional model: Single Group Assignment

Masking: None (Open label)

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200 participants in 1 patient group

Group (1) confirmed bronchial asthma and group (2) bronchial asthma rule out

Other group

Description:

After completing all the clinical, functional, radiologic, and endoscopic assessment, the patients were classified into two groups: Group (1) (89 patients) whose diagnosis confirmed to be bronchial asthma and group (2) (111 patients) with diagnoses other than bronchial asthma.

Treatment:

Device: Fibreoptic bronchoscopy