Overview Intrapleural Urokinase for Retained Hemothorax Status: Unknown status Trial end date: 2013-08-01 Target enrollment: Participant gender: Summary Intrapleural thrombolytic treatment with urokinase for retained hemothorax is effective and safe. However, previous study was limited in prospective observation study without control group. Phase: Phase 3 Details Lead Sponsor: National Taiwan University Hospital