Context: Recently, renowned musician Ustad Zakir Hussain passed away following complications with idiopathic pulmonary fibrosis.
Relevance of the Topic: Prelims: Key facts about Idiopathic Pulmonary Fibrosis.
What is Idiopathic Pulmonary Fibrosis?
- It is a chronic, progressive lung disease characterised by scarring (fibrosis) of the lung tissue, leading to irreversible loss of lung function. The exact cause of IPF is unknown, so it is termed idiopathic.
- In case of a healthy lung, the oxygen easily passes through the walls of the air sacs (alveoli) and goes into the capillaries, and eventually the bloodstream. In IPF, the fibrosis thickens and stiffens the lungs, reducing their ability to expand and take in oxygen.
- IPF specifically targets the interstitium (the tissue surrounding the air sacs). As a result, the alveoli walls get thicker, which makes it difficult for the oxygen to move into the bloodstream.
- Over time, this leads to persistent breathlessness, fatigue, and reduced quality of life.
- Symptoms: Shortness of breath, prolonged dry cough, pain in joints and muscles, fatigue and weight loss.
What are the risk factors for IPF?
The exact cause of IPF is unknown, however, there are several factors that come into the play when considering the risk an individual is under to get IPF:
- Age: Older people (over age 50, generally 60-70) are at a higher risk of developing idiopathic pulmonary fibrosis.
- Lifestyle: Smoking habit, prolonged exposure to dust, wood, or metal particles may increase the risk.
- Gender: More common in men than women.
- Family history and genes: The genes a person inherits might make it more likely for them to develop IPF, especially if the genes carry mutations. E.g., mutation in gene MUC5B (which makes a mucus protein that helps clear harmful substances, like bacteria, from the lungs) increases the risk of IPF.
Treatment for IPF:
- There is no cure for IPF, at present. However, medicines and other treatments (oxygen therapy and ventilator support) might help slow down the lung damage.
- Lung transplant might be an option, however, it can cause major complications, such as infection or rejection of the new organ by the body.