A Patient who has only one Lung Experiences Severe Hypercapnia. How the use of HFNC Has Had a Positive Impact on Patient life: A Case Report

Background The literature doesn’t contain examples of patients with one lung who were treated with High Flow Nasal Cannula (HFNC) after identifying hypoxemic and hypercapnic respiratory failure secondary to pneumonia. Discussion A 69 years-old male COPD associated, who had already a posttraumatic exeresis from an accident at work, went to the ER of our Hospital to severe dyspnea. At CT of thorax, an consolidation was found in the left basal region. Arterial blood gas analysis revealed severe hypercapnia and severe hypoxemia. The patient was admitted to the Emergency Medicine, where NIV + OLT was administered. We were contacted for a transfer. In our department, a bronchoscopy was performed, which documented the presence of dense secretions. A new antibiotic therapy was initiated and was placed on High-Flow Nasal Cannula (HFNC). The decision to use HFNC was considered for better secretion management, for CO2 wash-out effect and humidified gas mixtures. During hospitalization, the patient adapted to this system, and a progressive improvement was observed. Results and Conclusion Follow-up 30- 90 days showed a significant reduction in blood CO2 levels. The chronic use of HFNC is still under study, we believe it could be a possible solution for patients with global chronic respiratory failure and stable COPD.