Clinical Trials Logo

Clinical Trial Summary

In two randomized clinical trials the investigators have demonstrated that continuous postoperative pericardial flushing (CPPF) therapy can reduce postoperative blood loss and bleeding-related complications after cardiac surgery and that CPPF therapy is safe and feasible in an experimental setting. The Haermonics investigational device is a novel medical device that enables CPPF therapy to be used in daily clinical setting. The aim of this study is three-fold. First, to evaluate the safety and functionality of the Haermonics investigational device. Secondly, to investigate the effect of CPPF therapy on bleeding related complications in the adulty cardiac surgery population. Thirdly, to explore the effect of CPPF therapy on intraluminal chest tube clogging.


Clinical Trial Description

CPPF therapy Prolonged or excessive bleeding after cardiac surgery can lead to a broad spectrum of secondary complications. One of the underlying causes is incomplete wound drainage, with subsequent accumulation of blood and clots in the pericardium. It has been demonstrated that this retained blood and clots lead to even more fibrinolytic activity in the mediastinum and pericardial space, and therefore may contribute to increased or prolonged bleeding. Based on this principle, the method of continuous postoperative pericardial flushing (CPPF) has been invented and further developed. The hypothesis is that CPPF therapy works by mechanical cleaning properties and by diminishing fibrinolysis and inflammation. The CPPF protocol includes the inflow of NaCl 0,9% flushing fluid into the pericardial cavity during the first postoperative hours in patients who underwent cardiac surgery. In this way, the blood and clot mixture can be diluted into a lower viscosity solution, thereby enhancing the evacuation of blood and clots from the pericardial space and preventing chest tube obstruction. The Haermonics investigational device Because CPPF therapy includes the dilution of the normal postoperative mediastinal chest tube drainage (MCTD), the clinical assessment of the exact amount of blood loss is more difficult. Yet, blood loss is an important factor in clinical decision making, namely the decision if the patient needs a surgical re-exploration for postoperative bleeding or not. Roughly, in patients who receive CPPF therapy, blood loss can be estimated by extracting the total inflow flushing volume from the total MCTD. This method was used in the experimental setting of the previous CPPF trails but is considered unsuitable for use in daily practice because of three reasons. First, the required registration of in- and outflow volume is labour intensive. Secondly, because this registration can only be done intermittently, which can be dangerous in case of a fast bleeding rate. Thirdly, blood loss calculation could potentially be inaccurate because sometimes, clinically insignificant, amounts of flushing fluid are retained or absorbed in the pericardial or pleural spaces, thereby making the blood loss calculation inaccurate. The first commercial Haermonics device will have four essential functionalities that make CPPF therapy safe and feasible for daily clinical use. 1) Automatic monitoring of the outflow volume, 2) Quantification of the content of the outflow volume by means of real time and continuous haematocrit (hct) analysis of the MCTD, 3) Warming of the flushing fluid to body temperature and temperature measurements of the flushing fluid, and 4) Continuous intrapericardial pressure measurement. The investigational device that will be used in this study will have all these functionalities, but available data will not be used for clinical decision making yet. Previous studies CPPF, executed with a researcher instead of a medical device, has been investigated in two randomized clinical trials. The CPPF protocol included the inflow of 500 ml NaCl 0,9% flushing fluid into the pericardial cavity during the first 12 postoperative hours in patients who underwent cardiac surgery. In this way, the blood and clot mixture were diluted into a lower viscosity solution, thereby enhancing the evacuation of blood and clots from the pericardial space and preventing chest tube obstruction. In two distinct cardiac surgery populations, both trials showed CPPF led to a statistically significant reduction in the primary outcome, i.e., blood loss, while pooled data showed a statistically significant difference for the clinically most relevant secondary end points, like the incidence of re-interventions for either non-surgical bleeding and/or acute cardiac tamponade (0 vs. 8 in CPPF vs. control group). The present study is powered to assess the effects of CPPF, executed by the Haermonics investigational device, in comparison with standard care on these clinically more relevant endpoints in a population of adult cardiac surgery patients. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT05308589
Study type Interventional
Source Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)
Contact
Status Terminated
Phase N/A
Start date November 2, 2021
Completion date April 18, 2023

See also
  Status Clinical Trial Phase
Terminated NCT04293744 - Acute Kidney Injury After Cardiac Surgery N/A
Completed NCT01184521 - Masimo CO-Oximeter Study Phase 0
Completed NCT05537168 - Bayesian Networks in Pediatric Cardiac Surgery
Completed NCT04269109 - Opioid Sparing Pain Management Strategy
Completed NCT05737147 - Comparison of the Accuracy and Precision of a Zero Heat Flux Thermometer (SpotOn) Versus Pulmonary Artery Temperature.
Completed NCT04911413 - Comparison of Three Tranexamic Acid Dose Regimens in Patients Undergoing Cardiac Valve Surgery Phase 4
Recruiting NCT02580292 - Diagnostic Accuracy of Doppler Resistive Indices for Early Diagnosis of Acute Kidney Injury .
Completed NCT02457572 - Pulse Pressure Variation Measured During Valsalva Maneuver to Predict Fluid Responsiveness Under Open-chest Condition N/A
Completed NCT00997217 - The Effect of Remote Ischemic Preconditioning in the Cardiac Surgery Phase 1
Recruiting NCT05454735 - Glycemic Variability and Autonomic Nervous System in Cardiac Surgery Patients
Completed NCT01169441 - Lead Extract Study N/A
Completed NCT00336908 - Inflammatory Responses to Lipid Emulsions in Children Before and After Open Heart Surgery Phase 2/Phase 3
Recruiting NCT03163238 - Dexmedetomidine and the Inflammatory Response in Pediatric Cardiac Surgery Phase 2
Completed NCT02329158 - Disinvestment in Hydroxyl-ethyl Starches (HES) for Cardiac Surgery
Completed NCT01029314 - Pilot Study of the Genius(TM)2 Tympanic Thermometer in Cardiac Patients Requiring Cardiopulmonary Bypass N/A
Completed NCT00459082 - A Pharmacokinetic Study of Dexmedetomine in Infants Phase 1
Completed NCT00122018 - An Investigation of N-acetylcysteine and Fenoldopam as Renal Protection Agents for Cardiac Surgery Phase 2
Terminated NCT03709693 - Clinical Outcomes in Patients Treated With SternaLock Blu
Completed NCT03976947 - Impact of Lung Recruitment Maneuvers on Driving Pressure in Cardiac Surgery
Completed NCT02398019 - Clinical Trial to Evaluate the Use of an Adsorption Membrane (oXiris®) During Cardiopulmonary Bypass Surgery N/A