HemorrhageNCT02145858
Prevention of Retained-Blood Outcomes With Active Clearance Technology
An observational study of Hemorrhage and Atrial Fibrillation, Postoperative, run by ClearFlow, Inc. at 2 sites in United States.
Trial summary
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… Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Hemorrhage, Atrial Fibrillation, Postoperative
- What is being tested?
- Blood drainage post cardiac surgery using PleuraFlow System
- Type of treatment
- Medical device
- How many people
- 891 participants
- Where
- 2 sitesUnited States
- Study dates
- Jun 2014to 30 Nov 2016
- How long will I take part?
- 1 Month
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 years and older
- All sexes
- No healthy volunteers
- Adult, Older adult
Study population: Subjects 18 years or older who received a PleuraFlow System following heart surgery
Who may be able to join
- Male or Female subjects 18 years or older who received a PleuraFlow System following heart surgery.
- Patient undergoing cardiac surgery via sternotomy.
Who cannot join
- Any condition deemed inappropriate for inclusion by the investigators.
- Infants, children and adolescents under the age of 18.
- Robotic surgery.
- Any access via thoracotomy.
- Intolerance to implantable silicone materials.
Trial locations and contacts
2 sites in 1 country.
United States2 sites
Catholic Medical Center
Manchester, New Hampshire, 03102
Vanderbilt University Medical Center
Nashville, Tennessee, 37232-8802
About this study
Official title: Prevention of Retained-Blood Outcomes With Active Clearance Technology. ACT Registry
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.
Read more
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.
Read the detailed description
This is a prospective multicenter observational registry with a retrospective control. The registry has two tracks. One track--ALL-ACT-- is for sites enrolling a consecutive cohort of all cardiac surgery patients (Track A). The second track--VAD-ACT-- is for sites enrolling patients post ventricular assist device (VAD) surgery (Track B). There are two conditions for participation in this registry:
First, sites are required to provide anonymized matched historical data elements from a cohort of cardiac surgery patients done over the preceding 12 to 24-month period (Phase 0). These retrospective data elements will be used as baseline information for the purpose of comparative analyses (control group) with the prospective data sets collected during the prospective enrollment phase (treatment group).
Second, sites are required to participate in a roll-in phase (Phase 1). The purposes of the roll-in phase are to allow the users at participating sites to familiarize themselves with the use of the product with Active Clearance Technology; to implement clinical use protocols provided by ClearFlow, Inc. to all commercial users as part of product training, and; to demonstrate consistency and compliance with the clinical use protocols.
Phase 0 and phase 1 can be executed in parallel. Participating sites may start prospective enrollment (Phase 2) after completion of phase 0 and 1.
Investigators shall report PleuraFlow-related serious injuries to Sponsor as soon as becoming aware of the injury and no later than 48 hours.
Investigators shall report deaths to both the Sponsor and Regulatory authorities in compliance with their applicable State, Country and conditions imposed by the reviewing Ethical Committee. The three main guidance documents for reporting recall and vigilance procedure of medical devices are, 21 CFR, Part 806, MEDDEV 2.12/1 rev8 Guidelines on a Medical Devices Vigilance System, and Health Canada Medical Device Regulations SOR/98-282.
Vanderbilt University will create a REDCap database specific to this study and administer it. The Vanderbilt database study administrator will control database access, oversee data entry and data transfer from each participating site. Database manager will monitor the REDCap database and ensure data completeness and security. The database manager will maintain contact will the data entry personnel from each site and ensure whether data capture is occurring and determine the number of patients expected to be enrolled in the Registry at the end of the study period. Sponsor will not have access to REDCap once the study is complete. The REDCap database is secure and HIPAA compliant.
Descriptive statistics for categorical variables will be reported as percentages, and continuous variables will be reported as mean ± standard deviation (SD). Categorical variables will be compared using the chi-square test. Continuous variables will be compared using a Student's t-test as appropriate.
Database study administrator will coordinate the generation of data reports and statistical outputs. Sponsor will not have access to REDCap once the study is complete.
- Conditions
- Hemorrhage, Atrial Fibrillation, Postoperative
- Being tested
- Blood drainage post cardiac surgery using PleuraFlow System
- Keywords
- atrial fibrillation, pericardial effusion, pleural effusion
- Medical subject headings
- Hemorrhage, Atrial Fibrillation, Pericardial Effusion, Pleural Effusion
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Blood drainage post cardiac surgery using PleuraFlow SystemDevice
What is being measured
The primary outcome is the main question the study is designed to answer.
Incidence of Retained Blood Syndrome (RBS)
The incidence of RBS as defined by a composite endpoint of specific interventions and diagnoses. Any patient that has a record of any of the following interventions or diagnoses post-operatively including post-discharge, will be considered to have RBS.
- Interventions
- Reoperation for bleeding, tamponade or washout of retained blood
- Pericardial window
- Chest tube placement/replacement
- Pericardiocentesis
- Placement of pericardial drain
- Thoracotomy
- Thoracoscopy
- Thoracentesis
- Diagnoses
- Pleural effusion
- Pericardial effusion
- Hemothorax
- Pneumothorax
- Pericardial tamponade
Measured: surgery to post-operative 30 days
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted23 May 2014 (estimated)
- Study startJun 2014
- Primary completionJul 2016
- Study completion30 Nov 2016
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (14)Papers the sponsor has linked to this study.
- Other trials for HemorrhageStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Prospective
- Enrolment
- 891 participants (actual)
- Target duration
- 1 Month
Sponsor and investigators
- Lead sponsor
- ClearFlow, Inc.
- Sponsor type
- Industry (pharma, biotech, devices)
- Collaborators
- Vanderbilt University Medical Center, Catholic Medical Center
- Responsible party
- Sponsor
- Investigators
- Simon Maltais, MD, Study director, Mayo Clinic, Rochester, MN
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02145858
- Sponsor's protocol ID
- CL2014001
- Status last verified
- May 2018
- First submitted
- 21 May 2014
- Last updated
- 17 May 2018
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- Yes
Publications
Boyle EM Jr, Gillinov AM, Cohn WE, Ley SJ, Fischlein T, Perrault LP. Retained Blood Syndrome After Cardiac Surgery: A New Look at an Old Problem. Innovations (Phila). 2015 Sep-Oct;10(5):296-303. doi: 10.1097/IMI.0000000000000200.
PubMed 26575376Light RW. Pleural effusions following cardiac injury and coronary artery bypass graft surgery. Semin Respir Crit Care Med. 2001 Dec;22(6):657-64. doi: 10.1055/s-2001-18802.
PubMed 16088710Light RW. Pleural effusions after coronary artery bypass graft surgery. Curr Opin Pulm Med. 2002 Jul;8(4):308-11. doi: 10.1097/00063198-200207000-00011.
PubMed 12055394Light RW, Rogers JT, Cheng D, Rodriguez RM. Large pleural effusions occurring after coronary artery bypass grafting. Cardiovascular Surgery Associates, PC. Ann Intern Med. 1999 Jun 1;130(11):891-6. doi: 10.7326/0003-4819-130-11-199906010-00004.
PubMed 10375337Light RW, Rogers JT, Moyers JP, Lee YC, Rodriguez RM, Alford WC Jr, Ball SK, Burrus GR, Coltharp WH, Glassford DM Jr, Hoff SJ, Lea JW 4th, Nesbitt JC, Petracek MR, Starkey TD, Stoney WS, Tedder M. Prevalence and clinical course of pleural effusions at 30 days after coronary artery and cardiac surgery. Am J Respir Crit Care Med. 2002 Dec 15;166(12 Pt 1):1567-71. doi: 10.1164/rccm.200203-184OC. Epub 2002 Oct 11.
PubMed 12406850Ikaheimo MJ, Huikuri HV, Airaksinen KE, Korhonen UR, Linnaluoto MK, Tarkka MR, Takkunen JT. Pericardial effusion after cardiac surgery: incidence, relation to the type of surgery, antithrombotic therapy, and early coronary bypass graft patency. Am Heart J. 1988 Jul;116(1 Pt 1):97-102. doi: 10.1016/0002-8703(88)90255-4.
PubMed 3260740Shalli S, Boyle EM, Saeed D, Fukamachi K, Cohn WE, Gillinov AM. The active tube clearance system: a novel bedside chest-tube clearance device. Innovations (Phila). 2010 Jan;5(1):42-7. doi: 10.1097/IMI.0b013e3181cf7ce3.
PubMed 22437275Karimov JH, Gillinov AM, Schenck L, Cook M, Kosty Sweeney D, Boyle EM, Fukamachi K. Incidence of chest tube clogging after cardiac surgery: a single-centre prospective observational study. Eur J Cardiothorac Surg. 2013 Dec;44(6):1029-36. doi: 10.1093/ejcts/ezt140. Epub 2013 Mar 21.
PubMed 23520232Shiose A, Takaseya T, Fumoto H, Arakawa Y, Horai T, Boyle EM, Gillinov AM, Fukamachi K. Improved drainage with active chest tube clearance. Interact Cardiovasc Thorac Surg. 2010 May;10(5):685-8. doi: 10.1510/icvts.2009.229393. Epub 2010 Feb 23.
PubMed 20179137Arakawa Y, Shiose A, Takaseya T, Fumoto H, Kim HI, Boyle EM, Gillinov AM, Fukamachi K. Superior chest drainage with an active tube clearance system: evaluation of a downsized chest tube. Ann Thorac Surg. 2011 Feb;91(2):580-3. doi: 10.1016/j.athoracsur.2010.10.018.
PubMed 21256318Perrault LP, Pellerin M, Carrier M, Cartier R, Bouchard D, Demers P, Boyle EM. The PleuraFlow Active Chest Tube Clearance System: initial clinical experience in adult cardiac surgery. Innovations (Phila). 2012 Sep-Oct;7(5):354-8. doi: 10.1097/IMI.0b013e31827e2b4d.
PubMed 23274869Sirch J, Ledwon M, Puski T, Boyle EM, Pfeiffer S, Fischlein T. Active clearance of chest drainage catheters reduces retained blood. J Thorac Cardiovasc Surg. 2016 Mar;151(3):832-838.e2. doi: 10.1016/j.jtcvs.2015.10.015. Epub 2015 Oct 22.
PubMed 26611748Baribeau Y, Westbrook B, Baribeau Y, Maltais S, Boyle EM, Perrault LP. Active clearance of chest tubes is associated with reduced postoperative complications and costs after cardiac surgery: a propensity matched analysis. J Cardiothorac Surg. 2019 Nov 8;14(1):192. doi: 10.1186/s13019-019-0999-3.
PubMed 31703606Maltais S, Davis ME, Haglund NA, Perrault L, Kushwaha SS, Stulak JM, Boyle EM. Active Clearance of Chest Tubes Reduces Re-Exploration for Bleeding After Ventricular Assist Device Implantation. ASAIO J. 2016 Nov/Dec;62(6):704-709. doi: 10.1097/MAT.0000000000000437.
PubMed 27556153
Study at a glance
From the registry record, last updated by the sponsor on 17 May 2018. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Prevention of Retained-Blood Outcomes With Active Clearance Technology. ACT Registry
- ClinicalTrials.gov ID
- NCT02145858
- Acronym / sponsor ID
- CL2014001
- Conditions
- Hemorrhage, Atrial Fibrillation, Postoperative
- Keywords
- atrial fibrillation, pericardial effusion, pleural effusion
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 891 participants (actual)
- Lead sponsor
- ClearFlow, Inc.Industry (pharma, biotech, devices)
- Collaborators
- Vanderbilt University Medical Center, Catholic Medical Center
- Study start
- Jun 2014
- Primary completion
- Jul 2016 (actual)
- Study completion
- 30 Nov 2016 (actual)
- First posted
- 23 May 2014 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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.
Detailed description
This is a prospective multicenter observational registry with a retrospective control. The registry has two tracks. One track--ALL-ACT-- is for sites enrolling a consecutive cohort of all cardiac surgery patients (Track A). The second track--VAD-ACT-- is for sites enrolling patients post ventricular assist device (VAD) surgery (Track B). There are two conditions for participation in this registry:
First, sites are required to provide anonymized matched historical data elements from a cohort of cardiac surgery patients done over the preceding 12 to 24-month period (Phase 0). These retrospective data elements will be used as baseline information for the purpose of comparative analyses (control group) with the prospective data sets collected during the prospective enrollment phase (treatment group).
Second, sites are required to participate in a roll-in phase (Phase 1). The purposes of the roll-in phase are to allow the users at participating sites to familiarize themselves with the use of the product with Active Clearance Technology; to implement clinical use protocols provided by ClearFlow, Inc. to all commercial users as part of product training, and; to demonstrate consistency and compliance with the clinical use protocols.
Phase 0 and phase 1 can be executed in parallel. Participating sites may start prospective enrollment (Phase 2) after completion of phase 0 and 1.
Investigators shall report PleuraFlow-related serious injuries to Sponsor as soon as becoming aware of the injury and no later than 48 hours.
Investigators shall report deaths to both the Sponsor and Regulatory authorities in compliance with their applicable State, Country and conditions imposed by the reviewing Ethical Committee. The three main guidance documents for reporting recall and vigilance procedure of medical devices are, 21 CFR, Part 806, MEDDEV 2.12/1 rev8 Guidelines on a Medical Devices Vigilance System, and Health Canada Medical Device Regulations SOR/98-282.
Vanderbilt University will create a REDCap database specific to this study and administer it. The Vanderbilt database study administrator will control database access, oversee data entry and data transfer from each participating site. Database manager will monitor the REDCap database and ensure data completeness and security. The database manager will maintain contact will the data entry personnel from each site and ensure whether data capture is occurring and determine the number of patients expected to be enrolled in the Registry at the end of the study period. Sponsor will not have access to REDCap once the study is complete. The REDCap database is secure and HIPAA compliant.
Descriptive statistics for categorical variables will be reported as percentages, and continuous variables will be reported as mean ± standard deviation (SD). Categorical variables will be compared using the chi-square test. Continuous variables will be compared using a Student's t-test as appropriate.
Database study administrator will coordinate the generation of data reports and statistical outputs. Sponsor will not have access to REDCap once the study is complete.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
- Target follow-up
- 1 Month
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
- Study population
- Subjects 18 years or older who received a PleuraFlow System following heart surgery
Key inclusion criteria (2 listed)
- Male or Female subjects 18 years or older who received a PleuraFlow System following heart surgery.
- Patient undergoing cardiac surgery via sternotomy.
Key exclusion criteria (5 listed)
- Any condition deemed inappropriate for inclusion by the investigators.
- Infants, children and adolescents under the age of 18.
- Robotic surgery.
- Any access via thoracotomy.
- Intolerance to implantable silicone materials.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Blood drainage post cardiac surgery using PleuraFlow System | Device | – |
Primary outcome
Incidence of Retained Blood Syndrome (RBS)
Time frame: surgery to post-operative 30 days
The incidence of RBS as defined by a composite endpoint of specific interventions and diagnoses. Any patient that has a record of any of the following interventions or diagnoses post-operatively including post-discharge, will be considered to have RBS. * Interventions * Reoperation for bleeding, tamponade or washout of retained blood * Pericardial window * Chest tube placement/replacement * Pericardiocentesis * Placement of pericardial drain * Thoracotomy * Thoracoscopy * Thoracentesis * Diagnoses * Pleural effusion * Pericardial effusion * Hemothorax * Pneumothorax * Pericardial tamponade
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 17 May 2018.
- Background: PubMed 26575376Boyle EM Jr, Gillinov AM, Cohn WE, Ley SJ, Fischlein T, Perrault LP. Retained Blood Syndrome After Cardiac Surgery: A New Look at an Old Problem. Innovations (Phila). 2015 Sep-Oct;10(5):296-303. doi: 10.1097/IMI.0000000000000200.
- Background: PubMed 16088710Light RW. Pleural effusions following cardiac injury and coronary artery bypass graft surgery. Semin Respir Crit Care Med. 2001 Dec;22(6):657-64. doi: 10.1055/s-2001-18802.
- Background: PubMed 12055394Light RW. Pleural effusions after coronary artery bypass graft surgery. Curr Opin Pulm Med. 2002 Jul;8(4):308-11. doi: 10.1097/00063198-200207000-00011.
- Background: PubMed 10375337Light RW, Rogers JT, Cheng D, Rodriguez RM. Large pleural effusions occurring after coronary artery bypass grafting. Cardiovascular Surgery Associates, PC. Ann Intern Med. 1999 Jun 1;130(11):891-6. doi: 10.7326/0003-4819-130-11-199906010-00004.
- Background: PubMed 12406850Light RW, Rogers JT, Moyers JP, Lee YC, Rodriguez RM, Alford WC Jr, Ball SK, Burrus GR, Coltharp WH, Glassford DM Jr, Hoff SJ, Lea JW 4th, Nesbitt JC, Petracek MR, Starkey TD, Stoney WS, Tedder M. Prevalence and clinical course of pleural effusions at 30 days after coronary artery and cardiac surgery. Am J Respir Crit Care Med. 2002 Dec 15;166(12 Pt 1):1567-71. doi: 10.1164/rccm.200203-184OC. Epub 2002 Oct 11.
- Background: PubMed 3260740Ikaheimo MJ, Huikuri HV, Airaksinen KE, Korhonen UR, Linnaluoto MK, Tarkka MR, Takkunen JT. Pericardial effusion after cardiac surgery: incidence, relation to the type of surgery, antithrombotic therapy, and early coronary bypass graft patency. Am Heart J. 1988 Jul;116(1 Pt 1):97-102. doi: 10.1016/0002-8703(88)90255-4.
- Background: PubMed 22437275Shalli S, Boyle EM, Saeed D, Fukamachi K, Cohn WE, Gillinov AM. The active tube clearance system: a novel bedside chest-tube clearance device. Innovations (Phila). 2010 Jan;5(1):42-7. doi: 10.1097/IMI.0b013e3181cf7ce3.
- Background: PubMed 23520232Karimov JH, Gillinov AM, Schenck L, Cook M, Kosty Sweeney D, Boyle EM, Fukamachi K. Incidence of chest tube clogging after cardiac surgery: a single-centre prospective observational study. Eur J Cardiothorac Surg. 2013 Dec;44(6):1029-36. doi: 10.1093/ejcts/ezt140. Epub 2013 Mar 21.
- Background: PubMed 20179137Shiose A, Takaseya T, Fumoto H, Arakawa Y, Horai T, Boyle EM, Gillinov AM, Fukamachi K. Improved drainage with active chest tube clearance. Interact Cardiovasc Thorac Surg. 2010 May;10(5):685-8. doi: 10.1510/icvts.2009.229393. Epub 2010 Feb 23.
- Background: PubMed 21256318Arakawa Y, Shiose A, Takaseya T, Fumoto H, Kim HI, Boyle EM, Gillinov AM, Fukamachi K. Superior chest drainage with an active tube clearance system: evaluation of a downsized chest tube. Ann Thorac Surg. 2011 Feb;91(2):580-3. doi: 10.1016/j.athoracsur.2010.10.018.
- Background: PubMed 23274869Perrault LP, Pellerin M, Carrier M, Cartier R, Bouchard D, Demers P, Boyle EM. The PleuraFlow Active Chest Tube Clearance System: initial clinical experience in adult cardiac surgery. Innovations (Phila). 2012 Sep-Oct;7(5):354-8. doi: 10.1097/IMI.0b013e31827e2b4d.
- Background: PubMed 26611748Sirch J, Ledwon M, Puski T, Boyle EM, Pfeiffer S, Fischlein T. Active clearance of chest drainage catheters reduces retained blood. J Thorac Cardiovasc Surg. 2016 Mar;151(3):832-838.e2. doi: 10.1016/j.jtcvs.2015.10.015. Epub 2015 Oct 22.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Simon Maltais, MD study director
Mayo Clinic, Rochester, MN
2 sites in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Hemorrhage and Atrial Fibrillation, Postoperative, run by ClearFlow, Inc. at 2 sites in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 2 inclusion and 5 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 17 May 2018. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 2 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Incidence of Retained Blood Syndrome (RBS) (time frame: surgery to post-operative 30 days). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT02145858, which also lists 14 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 17 May 2018.