Postoperative bleeding is a common consequence after heart surgery which can significantly impact outcomes and costs . When bleeding occurs, reliable postoperative blood evacuation of the pleural, mediastinal and pericardial spaces with chest tubes is imperative to facilitate pulmonary reexpansion and mediastinal decompression as the patient recovers. When postoperative blood evacuation is inadequate, complications from retained blood can result. Clinically, retained blood may be recognized acutely or sub acutely. The acute clinical presentation is usually blood and fresh thrombus around the heart or lungs presenting as tamponade or hemothorax. The subacute clinical presentation is bloody pleural or pericardial effusions. These effusions are often driven by the breakdown of remaining thrombus. Once retained blood occurs, subsequent procedures may be needed to remedy it. Interventions to remove postoperative pericardial and/or pleural fluid or blood and reoperations due to bleeding are captured under a composite termed Retained Blood Syndrome, or RBS. The need for treatment and interventions for these conditions represents an impediment to patient recovery and involves both resource and economic consumption for a heart program and the healthcare system at large. A recent review of the literature indicates that additional procedures for RBS are demonstrated in approximately 15% to 20% of patients after heart surgery. In a prospectively collected US Nationwide Inpatient Sample (NIS) data from 2010, RBS could be demonstrated in 17% of patients. In this analysis, mortality was doubled from 4% to 8%, length of stay was increased by 5 days, and average costs were 55% higher. Patients with RBS, therefore, represent an increased at-risk population for complications and costs. Postoperative obstruction of conventional chest tubes with blood and other fibrinous material in the setting of postoperative bleeding contributes to RBS. In a study of postoperative cardiac surgery patients at the Cleveland Clinic, 36% of patients were found to have evidence of chest tube obstruction. Active Clearance with PleuraFlow has been shown to prevent chest tube clogging, and reduce RBS. The purpose of this registry is to evaluate the effectiveness of the PleuraFlow System, a commercial Class II (US), Class IIb (Canada, Europe, and Australia), in the management of blood evacuation after cardiac surgery.
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Incidence of Retained Blood Syndrome (RBS)
Timeframe: surgery to post-operative 30 days