Abstract
In patients with chronic pulmonary microaspiration (CPM) the recognition of high-resolution computed tomographic (HRCT) findings and their pattern is important. To investigate the HRCT detections in patients with CPM. This descriptive study enrolled 100 consecutive patients with CPM underwent HRCT of the lungs between 2017 and 2018 in Tehran and Zahedan Hospitals and private centers. The required variables were recorded for each patient with a questionnaire. Subsequently, HRCT was performed and abnormalities were then reported by two radiologists. Most of patients exhibited bronchial thickening in 33.6% of cases, followed by ground-glass opacity (12.4%), emphysema (11.1%), and bronchiectasis (8.5%). In addition, the most common HRCT findings were found in left lower lobe (LLL) (37.1%), followed by right lower lobe (RLL) (35.9 %), right upper lobe (RUL) (6,2%), and left upper lobe (LUL) (6%). Our data showed the most common findings in HRCT were bronchial thickening ground-glass opacity, emphysema, and bronchiectasis, where these findings was dominantly found in LLL, RLL, RUL, and LUL, indicating its high tendency to dependent areas.
Highlights
Pulmonary aspirations (PA) are defined as the inhalation of oropharyngeal secretions or gastric matter toward the larynx and lower respiratory system
The most common high-resolution computed tomographic (HRCT) findings were found in left lower lobe (LLL) (37.1%), followed by right lower lobe (RLL) (35.9 %), right upper lobe (RUL ) (6,2%), and left upper lobe (LUL) (6%)
The findings revealed that emphysema was highly more prevalent in RUL, but other findings were more prevalent in LLL and RLL
Summary
Pulmonary aspirations (PA) are defined as the inhalation of oropharyngeal secretions or gastric matter toward the larynx and lower respiratory system. Despite the usefulness of HRCT, BAL is still used in cases, where the clinical diagnosis of microaspiration is suspected, but HRCT is normal. In spite of the radiologic diagnosis of CPM in suspected patients, cellular analysis of the BAL is used to confirm HRCT findings and cases without typical clinical symptoms for correct management of patients. In patients with chronic pulmonary microaspiration (CPM) the recognition of high-resolution computed tomographic (HRCT) findings and their pattern is important. Conclusion: Our data showed the most common findings in HRCT were bronchial thickening ground-glass opacity, emphysema, and bronchiectasis, where these findings was dominantly found in LLL, RLL, RUL, and LUL, indicating its high tendency to dependent areas. Investigation of high-resolution computed tomographic (HRCT) outcomes associated with chronic pulmonary microaspiration (CPM) in Tehran and Zahedan, Iran.
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