Recognizing Bronchiectasis: Key Symptoms and Risk Factors

This episode, "Recognizing Bronchiectasis: Key Symptoms and Risk Factors," features the panel examining the symptoms and patient history that most reliably point toward bronchiectasis.

Dr. ElMaraachli describes hallmark features that should raise suspicion for bronchiectasis. Chronic productive cough is common, he explains, but many patients report frequent bouts labeled as bronchitis requiring antibiotics once or twice a year. He notes that a lack of traditional COPD risk factors, particularly a never-smoker history, should raise clinical suspicion further. Several autoimmune diseases, including Sjogren's syndrome, rheumatoid arthritis, and lupus, are associated with bronchiectasis, along with chronic aspiration. Genetic conditions such as CFTR mutations, primary ciliary dyskinesia, and alpha-1 antitrypsin deficiency round out the causes he screens for.

Dr. Metersky adds that chronic purulent sputum, when present, is a useful sign that differentiates bronchiectasis from chronic bronchitis associated with COPD. He notes, however, that not every bronchiectasis patient produces purulent sputum, and some present with a persistent dry cough instead.

Dr. Khabbaza expands on the dry cough presentation, stressing that bronchiectasis belongs in the differential even when chest X-rays appear clear. He describes bronchoscopy findings in these patients as strikingly discordant: airways that appear severely affected on CT can produce almost no visible mucus during the procedure despite violent coughing, illustrating how impaired airway clearance allows mucus to become dry and trapped.

Dr. Metersky shares a recent patient encounter that echoes this theme: a woman with a mild, longstanding dry cough who underwent a cardiac CT for an unrelated calcium score and was found to have bronchiectasis incidentally.

Dr. ElMaraachli closes by describing how fragmented care often delays diagnosis. Patients cycle through empiric treatments for reflux or common cough causes across multiple physicians before someone finally orders the CT scan that reveals bronchiectasis, sometimes years after symptoms began. He adds that a sputum culture growing pseudomonas should also prompt clinicians to consider the diagnosis.

Our next episode, "Bronchiectasis Etiologies: From Idiopathic to Immune Deficiency," turns to the range of underlying causes the panel most frequently uncovers in practice.