Breathing easier after tuberculosis or years of smoke — a respiratory care plan

In India, two of the biggest causes of long-term breathlessness have nothing to do with smoking. The first is post-tuberculosis lung disease — breathing trouble that persists after TB treatment is successfully completed. The second is years of exposure to biomass smoke from firewood or kerosene stoves, and to urban and industrial air pollution. Both leave permanent changes in the airways, and both are frequently dismissed as 'weakness' or old age.

What is left behind after TB is cured

• Scarring (fibrosis) that stiffens parts of the lung and reduces the volume available
• Bronchiectasis — widened, floppy airways that pool mucus and cause recurrent infection
• Airflow obstruction that behaves like COPD even in a lifelong non-smoker
• Cavities that can later become colonised by fungus, causing cough with blood
• Reduced exercise capacity and, in some, low oxygen levels on exertion

How pollution and kitchen smoke injure lungs

Fine particulate matter is small enough to reach the air sacs, where it drives long-term inflammation. Over years this produces chronic cough with sputum, narrowed airways and accelerated loss of lung function — a picture indistinguishable from smoker's COPD. Women who have cooked over firewood for decades, and people who work outdoors on Coimbatore's busiest roads, are the classic groups affected.

Getting the assessment right

Guesswork is the enemy here, because post-TB damage, asthma, COPD and heart disease can all present as breathlessness. A lung function test (spirometry, with reversibility testing) shows whether the airflow limitation is obstructive, restrictive or mixed, and how much of it reverses with a bronchodilator. Diffusion capacity (DLCO) shows how well oxygen crosses into the blood. A chest X-ray or CT maps the scarring and identifies bronchiectasis or a cavity. A six-minute walk test with oxygen monitoring reveals desaturation that never shows up at rest.

What treatment can realistically achieve

• Inhaled bronchodilators, chosen after testing, to open the reversible part of the obstruction
• Airway clearance — steam, hydration, controlled huffing and physiotherapy techniques for bronchiectasis
• Prompt, correctly chosen antibiotics for flare-ups, guided by sputum culture where possible
• Pulmonary rehabilitation: a structured exercise and breathing programme that improves walking distance and confidence more than any tablet
• Vaccination against influenza and pneumococcus to prevent avoidable infections
• Oxygen assessment for those who desaturate, and screening for pulmonary hypertension in advanced scarring

What you can change at home

• Switch fully to LPG or an induction stove, and keep the kitchen cross-ventilated
• Check the daily air quality and shift walks away from peak traffic hours
• Use a well-fitting N95 mask on high-pollution days and on dusty commutes
• Keep indoor air free of incense, mosquito coils and cigarette smoke
• Walk daily, building up gradually — deconditioning worsens breathlessness far faster than the disease does

Red flags that need review sooner

• Coughing up blood, even a small streak
• Fever with a change in sputum colour or volume
• Weight loss, or a sudden fall in exercise tolerance
• Ankle swelling with worsening breathlessness

Post-TB lung disease and pollution-related airway damage cannot be reversed, but breathlessness, infection frequency and quality of life all improve substantially with a proper plan. If you were treated for tuberculosis in the past and are still breathless, book a consultation at Lung Care, R.S. Puram, Coimbatore, or call +91 82203 33209 for a lung function test.