Abstract
CASES: Case 1: A 63-year-old woman was referred for coughing blood. Although cardiorespiratory dynamics were stabilized by artificial respiration under sedation, severely poor ventilation developed from asphyxia associated with massive respiratory tract hemorrhage. One-lung ventilation was temporarily secured by endotracheal tube insertion into the left main bronchus just prior to cardiopulmonary arrest.Case 2: A 72-year-old man was referred for massive hemoptysis after coughing, then intubated and placed on a respirator. During angiography, blood clots collected with bronchoscopy confirmed extravascular leakage into the right main bronchus. OUTCOMES: Both showed no hemoptysis recurrence after bronchial artery embolization and were discharged. Case 1 required intensive treatment for 6 days, including artificial respiratory management. CONCLUSION: Emergency one-lung ventilation was required for asphyxia in Case 1, and we had difficulties with bleeding point identification and hemostatic therapy. From that experience, we noted hemoptysis during angiography using bronchoscopy in Case 2, enabling prompt bronchial artery embolization.