[Prevalence of bronchiectasis in patients with inborn errors of immunity].

Objective: To establish the prevalence of bronchiectasis, correlate the IgG IV or SC immunoglobulin dose and serum IgG levels with the total Bhalla score and the severity of bronchiectasis and associate serum IgG levels with the development of pulmonary infectious processes in patients with diagnosis of innate errors of immunity.

Methods: A descriptive, observational, cross-sectional study with patients over 18 years of age diagnosed with IBD. Clinical records and computed axial tomography were reviewed.

Results: 38 patients with IBD were included, where the prevalence of bronchiectasis was 36.8%. (Regarding the correlation of pulmonary infectious processes with serum IgG levels, a difference was found in patients from 2020 to 2022 (p= 0.002, 0.054, 0.030 respectively). The correlation of severity of bronchiectasis, total score of Bhalla scale, IgG IV or SC immunoglobulin dose and serum IgG levels by Spearman's Rho test I were found to be significantly correlated.

Conclusion: It is important to perform chest tomography studies every 3-4 years in patients with IBD to detect timely bronchiectasis, initiate treatment in time, improving patients' quality of life and survival rates, and reducing hospital costs.