Dr. Ranjan Kumar Das

72-year-old retired professor with severe COPD exacerbated by Kolkata's pollution. Dr. Das implemented a personalized pulmonary rehabilitation program combining medication optimization, home oxygen therapy, and family-supported breathing exercises, significantly improving quality of life within 3 months.

Construction worker from Bihar presented with acute respiratory distress after chemical exposure on site. Dr. Das coordinated emergency intubation, directed specific antidote administration, and managed ARDS complications, leading to full recovery after 2-week ICU stay followed by occupational counseling.

Teenage national-level swimmer developed exercise-induced bronchospasm affecting performance. Dr. Das designed a pre-competition inhaler protocol and breathing technique modification, allowing return to competitive swimming within 2 weeks with improved personal best times.

Pregnant schoolteacher in second trimester diagnosed with rare lymphangioleiomyomatosis. Dr. Das collaborated with obstetricians to balance lung preservation with fetal safety, managing oxygen requirements through delivery and postpartum period with successful outcomes for both mother and child.

A 28-year-old street food vendor from Howrah presented with persistent cough and weight loss, initially misdiagnosed as tuberculosis. Dr. Das identified rare fungal pneumonia through bronchoscopy, treated successfully with targeted antifungals over 6 weeks, enabling return to work with preventive education.