Cough-Related Central Chest Pain
Mechanisms and Prevalence
- Severe coughing fits cause musculoskeletal injury to the chest wall, including intercostal muscle strain, costochondritis, and rib fractures, which occur in up to 82.4% of patients presenting with post-tussive chest pain 1
- The 10th rib is most frequently affected in cough-induced fractures 1
- Intercostal muscle strain and costochondritis are common consequences of repetitive forceful coughing 1
- Point-of-care ultrasound detects rib fractures in 29% of cases after negative chest radiography, indicating these injuries are frequently missed 1
- Severe coughing fits cause widening of rib spaces, with 44% of patients developing associated rib fractures 1
Clinical Approach and Red Flags
- Hemoptysis, severe dyspnea, fever, or systemic symptoms are red flags requiring immediate evaluation 3, 4
- Pulmonary embolism causes cough in nearly half of cases and can present with chest pain 1
- History of cancer, tuberculosis, or AIDS is a red flag 4
- Weight loss or chest radiograph findings suggestive of mass or malignancy are red flags 4
Diagnostic Evaluation
- Chest radiography is the appropriate initial imaging for chronic cough with chest pain 1
- Physical examination should include palpation of the chest wall for point tenderness over ribs or intercostal spaces 1
- Radiographic rib series are more sensitive than standard chest X-rays for detecting rib fractures 1
- Consider point-of-care ultrasound if rib fractures are suspected but not visible on plain films 1
Management Strategy
- The American College of Chest Physicians recommends treating the cause of cough rather than just managing pain 3
- For patients with asthma, initiate inhaled corticosteroids with or without bronchodilators, even without spirometric evidence of obstruction 4
- For patients with COPD/chronic bronchitis, ipratropium bromide 36 μg (2 inhalations) four times daily is first-line therapy, decreasing cough frequency and severity while reducing sputum volume 5
- Smoking cessation is the priority intervention if the patient currently smokes, with 90% reporting cough resolution 5
- Upper airway cough syndrome accounts for 33.2% of chronic cough cases and should be treated empirically 3, 1
- Gastroesophageal reflux disease requires intensive acid suppression therapy for at least 3 months 4
- Discontinue ACE inhibitors immediately if the patient is taking one, as these cause chronic dry cough in 5-50% of patients 1