CHRONIC BRONCHITIS This is chronic inflammation of the bronchial mucosa due to irritants such as tobacco smoke. There is progressive worsening with age and eventually resulting in chronic respiratory failure. It is part of the syndrome of chronic obstructive pulmonary disease (COPD). It is aggravated by recurrent viral and bacterial infections. CAUSES · Cigarette smoking · Industrial dust · Chemical irritants SYMPTOMS · Cough with production of clear sputum · Fever and production of thick offensive sputum purulent and copious during secondary bacterial infection · Shortness of breath, with or without wheeze SIGNS Absence of signs does not exclude the disease · Wheeze or rhonchi · Reduced Peak Expiratory Flow Rate (PEFR) which does not increase with treatment INVESTIGATIONS · FBC · Spirometry · Chest X-ray · Sputum culture TREATMENT Treatment objectives · To minimise or stop cough · To reduce quantity of sputum produced · To prevent or minimise wheeze and shortness of breath Non-pharmacological treatment · Smoking cessation, if patient is a smoker 137 DISORDERS OF THE RESPIRATORY SYSTEM Pharmacological treatment (Evidence rating: C) · Mucolytic syrup containing acetyl cysteine: 10 ml 8 hourly - if thick viscid sputum · Salbutamol, Inhaled, (via aerosol) 100 microgram (2 puffs) 12 hourly and as needed Or Ipratropium bromide, Inhaled, 20 microgram (2 puffs) 12 hourly and as needed Antibiotics for secondary infection · Amoxicillin (Amoxycillin), oral, Adults 500 mg 8 hourly for 7 days Or Erythromycin, oral, Adults 500 mg 6 hourly for 7 days Or Azithromycin, oral, Adults 500 mg daily for 3 days REFER Refer all complicated cases for specialist care.