Pulmonary edema

Fluid accumulation in the alveolar spaces and interstitial tissue of the lungs disrupts gas exchange and is the hallmark of pulmonary edema. This condition often arises from left-sided heart failure, but can also be triggered by infections, trauma, toxins, or high-altitude exposure. Patients commonly present with sudden shortness of breath, coughing up frothy sputum, rapid breathing, and a sense of suffocation that worsens when lying flat. Diagnostic tools such as chest radiography, echocardiography, and blood oxygen measurements help confirm the presence of fluid overload and guide appropriate treatment strategies.

Addressing pulmonary edema involves both immediate symptom relief and correction of the underlying cause. Oxygen therapy, diuretics, and vasodilators are often used in acute cases to reduce fluid accumulation and improve oxygenation. In non-cardiac causes, such as acute respiratory distress syndrome, management focuses on ventilatory support and minimizing further lung injury. Lifestyle modifications, including reduced salt intake, weight management, and treatment of comorbidities like hypertension or diabetes, are vital for long-term stability. Rehabilitation programs help restore exercise capacity and reduce recurrence risks. With advances in imaging, medications, and intensive care interventions, outcomes have improved, though early recognition and prompt action remain the most important factors in reducing mortality and improving recovery.