La persistent cough, and generally the irritating and dry cough, is more frequent in winter than in autumn. If the persistent cough is accompanied by unpleasant sounds, tightness in the chest, of a feeling of suffocation, we speak of bronchial asthma and not so much of bronchial hyperresponsiveness.
La cough persistent, dry or with expectoration can appear between 20 and 40 years, in people who have started to smoke when young. It is a bronchitis chronicle and therefore special care must be taken. This is one of the effects of tobacco. Smokers over 40 who have a chronic cough often have chronic bronchitis, hypersecretion, emphysema, or chronic obstructive pulmonary disease. The risk of lung cancer is very high.
El Reflux gastroesophageal it is usually considered one of the causes of persistent cough. Its symptoms are heartburn or regurgitation. However, both are not specific for GERD. The diagnosis it is difficult to establish because it is necessary to monitor the esophageal pH, which in turn is usually not conclusive.
The hiatal hernias they are also a cause of persistent micro-aspiration cough. They usually leave debris on the chest scanner. In overweight or obese patients, or in people who snore and complain of a persistent cough, the syndrome of a obstructive sleep.
When apneas are very long, about 60 seconds, a negative intrathoracic pressure is created, cause of reflux or regurgitation. This is common, but little recognized by current medicine. The cough persistent may be the only symptom of tuberculosis pulmonary, which is far from being an eradicated disease.