Common variable immune deficiency: respiratory manifestations, pulmonary function and high-resolution CT scan...

Area of Science:

• Immunology
• Pulmonology
• Radiology

Background:

• Common variable immune deficiency (CVID) is frequently diagnosed late, leading to significant morbidity.
• Respiratory infections are the primary cause of illness and failure in CVID patients.

Purpose of the Study:

• To investigate respiratory complications, lung function, HRCT findings, and mortality in 47 CVID patients.
• To assess the diagnostic delay and referral patterns between immunology and respiratory medicine.

Main Methods:

• Retrospective observational case-note study at a regional immunology unit.
• Analysis of patient records for respiratory complications, lung function tests (spirometry), and HRCT findings.
• Review of referral times between chest physicians and immunologists.

Main Results:

• A median delay of 4.0 years from symptom onset to CVID diagnosis.
• Over 5 years median referral delay between respiratory and immunology specialists.
• Respiratory complications, particularly bronchiectasis (32/47 patients), were prevalent.
• Abnormal spirometry in 10/39 patients; HRCT confirmed bronchiectasis in 24 patients.
• Limited physiotherapy instruction and sparse sputum culture data were noted.

Conclusions:

• Increased physician awareness of CVID's respiratory complications is vital.
• Early respiratory physician consultation is essential for monitoring lung function and optimizing therapy.
• Proactive management can minimize lung damage progression in CVID patients.