Comparison of a Duraflo II-coated cardiopulmonary bypass circuit and a trillium-coated oxygenator during open-heart surgery

Perfusion ◽  
2004 ◽  
Vol 19 (3) ◽  
pp. 177-184 ◽  
Author(s):  
Tom N Hoel ◽  
Vibeke Videm ◽  
Svein T Baksaas ◽  
Tom E Mollnes ◽  
Frank Brosstad ◽  
...  
Keyword(s):  
Cardiopulmonary Bypass ◽  
Inflammatory Response ◽  
Complement Activation ◽  
Heart Surgery ◽  
Artery Bypass ◽  
Open Heart Surgery ◽  
Activation Products ◽  
Risk Patients ◽  
Leukocyte Counts ◽  
Terminal Complement

Background: Cardiopulmonary bypass (CPB) evokes a systemic inflammatory response. In attempting to improve the biocompatibility of the equipment, various methods to coat the inner surfaces of the CPB systems have been developed. The present study compares a Trillium Biopassive surface-coated Affinity oxygenator with a Duraflo II totally heparin-coated CPB system. Methods: Low-risk patients admitted for primary coronary artery bypass grafting or aortic valve replacement were randomized to operation using the Trillium- or the Duraflo II-coated setups. Heparin concentration, complement activation (C3bc activation products and terminal complement complex (TCC)), platelet activation (platelet numbers and beta-thromboglobulin (BTG)), leukocyte activation (leukocyte numbers and myeloperoxidase (MPO)), coagulation (thrombin/antithrombin complexes (TAT)) and fibrinolytic activity (plasmin/a2-antiplasmin complexes (PAP)) were measured during CPB and two hours postoperatively. Results: Platelet counts decreased during CPB, without significant intergroup differences. The median BTG concentration increased moderately in both groups and were slightly higher in the Trillium group during CPB (p B-0.05), but not postoperatively. Complement activation products (C3bc and TCC), leukocyte counts, MPO, TAT and PAP activity showed no differences between the two groups. Conclusions: There were small differences in the inflammatory response between the two extracorporeal circulation devices compared in this study.

Complement activation during and after open-heart surgery is only marginally affected by the choice of fluid for volume replacement

Perfusion ◽  
1996 ◽  
Vol 11 (4) ◽  
pp. 326-332 ◽  
Author(s):  
JL Svennevig ◽  
S. Tølløfsrud ◽  
U. Kongsgaard ◽  
H. Noddeland ◽  
B. Mohr ◽  
...  
Keyword(s):  
Complement Activation ◽  
Heart Surgery ◽  
Open Heart Surgery ◽  
Volume Replacement ◽  
Open Heart ◽  
Coronary Artery Surgery ◽  
Dextran 70 ◽  
Activation Products ◽  
To Receive ◽  
Terminal Complement

Forty patients undergoing CPB for coronary artery surgery, using a standardized technical setting, were randomized to receive either Ringer's acetate, dextran 70 (Macrodex), polygeline (Haemaccel) or albumin 4% for volume replacement during and after surgery. The choice of fluid did not affect early complement activation (C3 activation products). Higher values of the terminal complement complex (TCC) were found only at the end of the operation in patients receiving polygeline. There were no differences between any two of the four groups during the postoperative course. The use of blood transfusion or autotransfusion and the degree of haemodilution and hypothermia did not affect complement activation. We conclude that complement activation in association with open-heart surgery is only marginally affected by the choice of fluid for volume replacement.

The systemic inflammatory response syndrome following cardiac surgery: different expression of proinflammatory cytokines and procalcitonin in patients with and without multiorgan dysfunctions

Perfusion ◽  
2002 ◽  
Vol 17 (2) ◽  
pp. 103-109 ◽  
Author(s):  
Armin Sablotzki ◽  
Ivar Friedrich ◽  
Jörg Mühling ◽  
Marius G Dehne ◽  
Jan Spillner ◽  
...  
Keyword(s):  
Cardiac Surgery ◽  
Cardiopulmonary Bypass ◽  
Systemic Inflammatory Response Syndrome ◽  
Inflammatory Response ◽  
Heart Surgery ◽  
Open Heart Surgery ◽  
Multiple Organ ◽  
Systemic Inflammatory Response ◽  
Apache Ii Score ◽  
Organ Dysfunctions

Cardiopulmonary bypass is associated with an injury that may cause pathophysiological changes in the form of systemic inflammatory response syndrome (SIRS) or multiple organ dysfunction syndrome (MODS). In the present study, we investigated the inflammatory response of patients with multiple organ dysfunctions following open-heart surgery. Plasma levels of cytokines (IL-1β, IL-6, IL-8, IL-18) and procalcitonin (PCT) were measured on the first four postoperative days in 12 adult male patients with SIRS and two or more organ dysfunctions after myocar-dial revascularization (MODS group), and 15 patients without organ dysfunctions (SIRS group). All cytokines (except IL-1β) and PCT were significantly elevated in MODS patients, with peak values at the first two postoperative days. The results of our study show a different expression of members of the IL-1 family following extracorporeal circulation. For the first time, we can document that IL-18 is involved in the inflammatory response and the initiation of the MODS following cardiopulmonary bypass. In addition to APACHE-II score, PCT, IL-8, and IL-18 may be used as parameters for the prognosis of patients with organ dysfunctions after cardiac surgery. Furthermore, it must be noted that the duration of the surgical procedure is one of the most important factors for the initiation of the inflammatory response.

scholarly journals Complement (C3, C4) and C-reactive Protein Responses to Cardiopulmonary Bypass and Protamine Administration

1993 ◽  
Vol 21 (1) ◽  
pp. 50-55 ◽  
Author(s):  
M. Tulunay ◽  
S. Demiralp ◽  
S. Tastan ◽  
H. Akalin ◽  
U. Ozyurda ◽  
...  
Keyword(s):  
Cardiopulmonary Bypass ◽  
Complement System ◽  
Complement Activation ◽  
Heart Surgery ◽  
Tissue Injury ◽  
Open Heart Surgery ◽  
Complement C3 ◽  
C Reactive Protein ◽  
Reactive Protein ◽  
Protamine Administration

Complement activation has been deemed responsible for the damaging effects of cardiopulmonary bypass (CPB) in patients undergoing open heart surgery. We studied C3, C4 and C-reactive protein (CRP) in 22 patients undergoing CPB. In Group 1 (11 patients), protamine was given intravenously and in Group 2 (11 patients), via the aortic root after CPB. Significant decreases were observed in C3 and C4 during CPB in both groups indicating complement activation primarily by the classic pathway. Protamine did not lead to further activation of the complement system. In both groups, C3 levels gradually returned toward baseline within 24 hours but C4 levels were still lower than baseline 24 hours postoperatively. CPB and protamine administration did not cause any significant changes in CRP levels, but CRP increased abruptly 24 hours after operation. Although activation of complement system during CPB is expected to invoke an acute phase response, we conclude that this period is not long enough to induce an increased production of CRP in response to tissue injury or inflammation.

The role of N-acetylcystein administration on the oxidative response of neutrophils during cardiopulmonary bypass

Perfusion ◽  
1995 ◽  
Vol 10 (1) ◽  
pp. 21-26 ◽  
Author(s):  
LW Andersen ◽  
J. Thiis ◽  
A. Kharazmi ◽  
I. Rygg
Keyword(s):  
Cardiopulmonary Bypass ◽  
Oxidative Burst ◽  
Heart Surgery ◽  
Artery Bypass ◽  
Open Heart Surgery ◽  
Radical Scavenger ◽  
Double Blind Study ◽  
Oxidative Response ◽  
Oxidative Burst Response

The role of N-acetylcystein (NAC) administration on the oxidative response of neutrophils during cardiopulmonary bypass (CPB) was evaluated in a double-blind study. Twenty-four adult patients undergoing coronary artery bypass were included in the study. Twelve patients received NAC as a bolus of 100 mg/kg followed by a continuous infusion of 20 mg/kg/h in the bypass circuit from the beginning to the end of bypass. A further 12 patients received placebo. Citrated blood samples for measurement of oxidative burst response of neutrophils were obtained at different time points during bypass. The oxidative burst response of neutrophils in the patients receiving NAC was significantly low at all times during bypass. Based on these findings NAC appears to act as an oxygen free radical scavenger during open-heart surgery.

The effect of methylprednisolone prophylaxis on inflammatory monocyte subsets and suppressive regulatory T cells of patients undergoing cardiopulmonary bypass

Perfusion ◽  
2019 ◽  
Vol 34 (5) ◽  
pp. 364-374
Author(s):  
Xing Hao ◽  
Junyan Han ◽  
Hui Zeng ◽  
Hong Wang ◽  
Guoli Li ◽  
...  
Keyword(s):  
T Cells ◽  
Cardiopulmonary Bypass ◽  
Inflammatory Response ◽  
Heart Surgery ◽  
Open Heart Surgery ◽  
Treg Cells ◽  
Monocyte Subsets ◽  
Inflammatory Monocyte ◽  
Prophylactic Administration ◽  
Hla Dr

Background: Cardiopulmonary bypass (CPB) during open-heart surgery triggers an inflammatory response that can cause significant morbidity and mortality. Human monocytes and regulatory T (Treg) cells are phenotypically and functionally heterogeneous and have been shown to play a significant role in the inflammatory dysfunction triggered by CPB. Glucocorticoids (GCs) have been widely administered for decades in patients undergoing CPB to reduce this inflammatory response. However, it has not been clearly established how routine prophylactic administration of glucocorticoids (GCs) affects monocyte and Treg subsets. Methods: Thirty-six patient who underwent heart surgery with CPB were randomly assigned to a methylprednisolone group (MG, N = 18; 500 mg in the CPB priming) and a non-methylprednisolone group (NMG, N = 18). The circulating monocyte and Treg subsets were analyzed by flow cytometry. Results: The MG and NMG groups had comparable percentages of monocyte subsets and similar expression levels of HLA-DR, CD86, CD64 and toll-like receptor 4 (TLR4). Remarkably, methylprednisolone increased the percentage of CD4+CD25+ Treg cells among CD4+ T cells in patients undergoing CPB, but did not increase the proportion of suppressive Treg cells, either resting or activated, in these patients undergoing CPB. Conclusions: Our results showed that prophylactic administration of methylprednisolone neither decreased the percentages and counts of inflammatory monocyte subsets nor did it induce the expansion of suppressive Treg cells in patients undergoing CPB. These results clarified the effects of GCs on cell-mediated immune responses and provided additional evidence in practice. Trial registration: Clinicaltrials.gov : NCT01296074. Registered 14 February 2011.

Comparable biocompatibility of Phisio- and Bioline-coated cardiopulmonary bypass circuits indicated by the inflammatory response

Perfusion ◽  
2010 ◽  
Vol 25 (1) ◽  
pp. 9-16 ◽  
Author(s):  
AS Thiara ◽  
VY Andersen ◽  
V. Videm ◽  
TE Mollnes ◽  
K. Svennevig ◽  
...  
Keyword(s):  
Cardiopulmonary Bypass ◽  
Lactate Dehydrogenase ◽  
Heart Surgery ◽  
Polymer Surface ◽  
Open Heart Surgery ◽  
Inflammatory Reactions ◽  
Leukocyte Counts ◽  
To Receive ◽  
Predetermined Time

Background: The biocompatibility of cardiopulmonary bypass surfaces has been improved by heparin and polymer surface modifications. The present study compared the effect of two such coatings on the inflammatory reactions after open heart surgery. Methods:Thirty patients undergoing elective heart surgery were randomly assigned to receive one of two types of coated circuits: Bioline (n=15) or phosphorylcholine (Phisio, n=15). The platelet and leukocyte counts, neutrophil activation (myeloperoxidase), complement activation (C3a and TCC), concentrations of lactate dehydrogenase, 27 cytokines (including interleukins, chemokines and growth factors), thrombin-antithrombin complexes, and the endothelial cell marker syndecan-1 were analyzed at five predetermined time points until 24 hrs post operatively. Results: Most measurements were comparable in both groups. However, myeloperoxidase was significantly higher in the Bioline group (p < 0.001). Postoperative lactate dehydrogenase concentrations were significantly higher in the Phisio group (p<0.01) and the maximal concentration of thrombin-antithrombin complexes 2 hours postoperatively tended to be higher in the Phisio group (p=0.08), consistent with a longer aortic cross-clamp and cardiopulmonary bypass time. Conclusions: The two circuits exhibited a comparable degree of in vivo biocompatibility.

scholarly journals A study on correlation of coronary sinus lactate and troponin T levels with perioperative outcome in patients undergoing cardiac surgery on cardio pulmonary bypass

2021 ◽  
Author(s):  
Rupesh Kumar ◽  
Vidur Bansal ◽  
Subhendu Mahapatra ◽  
Gautam Sengupta
Keyword(s):  
Cardiac Surgery ◽  
Cardiopulmonary Bypass ◽  
Coronary Sinus ◽  
Heart Surgery ◽  
Troponin T ◽  
Artery Bypass ◽  
Open Heart Surgery ◽  
Perioperative Outcomes ◽  
Aortic Cross Clamp ◽  
Pulmonary Bypass

Abstract Myocardial ischemia is a metabolic phenomenon that occurs in patients undergoing open heart surgery like coronary artery bypass grafting (CABG), valvular heart surgery, vascular surgeries etc., due to stress imposed during cardiopulmonary bypass (CPB), obligatory interruption of coronary blood flow during aortic cross clamp and reperfusion after aortic cross clamp release. The present study is designed to have a detailed study on estimation of coronary sinus lactate and troponin t levels in patients undergoing cardiac surgery with cardiopulmonary bypass and its correlation with various parameters related to the perioperative outcomes.

Neutrophil function and cardiopulmonary bypass in humans. The effects of glucose and non-glucose containing bypass pump priming fluids

Perfusion ◽  
1986 ◽  
Vol 1 (2) ◽  
pp. 103-116 ◽  
Author(s):  
PT Conroy ◽  
MJ Elliott ◽  
PN Platt ◽  
M. Holden
Keyword(s):  
Cardiopulmonary Bypass ◽  
Whole Blood ◽  
Heart Surgery ◽  
Artery Bypass ◽  
Bypass Graft ◽  
Open Heart Surgery ◽  
Neutrophil Function ◽  
Polymorphonuclear Neutrophil ◽  
Blood Glucose Concentrations ◽  
Glucose Group

Defective polymorphonuclear neutrophil function during cardiopulmonary bypass (CPB) has been implicated as a cause of postoperative infection following open-heart surgery. Neutrophil function is known to be impaired in poorly controlled diabetics with elevations of blood glucose concentrations of the order which occur frequently during CPB when glucose containing priming fluids are used. Neutrophil function, as measured by bactericidal assay, and neutrophil and whole blood luminol dependent chemiluminescence, was studied in two groups of 1 2 patients undergoing coronary artery bypass graft surgery. Patients received either a glucose or non-glucose containing bypass pump-priming fluid. Postoperatively neutrophil luminol-dependent chemiluminescence was significantly increased in both groups (glucose prime groups p < 0.01, non-glucose prime group p < 0.01). Whole blood chemiluminescence was increased significantly intra and postoperatively in the glucose prime group ( p < 0.02, p < 0.02 respectively) but the increase was not significant in the non-glucose prime group. Bactericidal activity remained unchanged during and after surgery in both groups (mean bactericidal index intraoperatively 96.4 glucose group, 96.2 non-glucose group; postoperatively 99.7 glucose group, 99.7 non-glucose group). These data suggest that glucose containing bypass priming fluids do not modulate significantly the function of circulating neutrophils after CPB. Neutrophil function was not decreased after surgery, and other factors may be responsible for the reported higher incidence of bacterial infection after CPB.

Monitoring of r-Hirudin Anticoagulation during Cardiopulmonary Bypass – Assessment of the Whole Blood Ecarin Clotting Time

1997 ◽  
Vol 77 (05) ◽  
pp. 0920-0925 ◽  
Author(s):  
Bernd Pötzsch ◽  
Katharina Madlener ◽  
Christoph Seelig ◽  
Christian F Riess ◽  
Andreas Greinacher ◽  
...  
Keyword(s):  
Cardiopulmonary Bypass ◽  
Whole Blood ◽  
Heart Surgery ◽  
Ex Vivo ◽  
Open Heart Surgery ◽  
Clotting Time ◽  
Blood Samples ◽  
Alternative Approach ◽  
Ecarin Clotting Time

SummaryThe use of recombinant ® hirudin as an anticoagulant in performing extracorporeal circulation systems including cardiopulmonary bypass (CPB) devices requires a specific and easy to handle monitoring system. The usefulness of the celite-induced activated clotting time (ACT) and the activated partial thromboplastin time (APTT) for r-hirudin monitoring has been tested on ex vivo blood samples obtained from eight patients treated with r-hirudin during open heart surgery. The very poor relationship between the prolongation of the ACT and APTT values and the concentration of r-hirudin as measured using a chromogenic factor Ila assay indicates that both assays are not suitable to monitor r-hirudin anticoagulation. As an alternative approach a whole blood clotting assay based on the prothrombin-activating snake venom ecarin has been tested. In vitro experiments using r-hirudin- spiked whole blood samples showed a linear relationship between the concentration of hirudin added and the prolongation of the clotting times up to a concentration of r-hirudin of 4.0 µg/ml. Interassay coefficients (CV) of variation between 2.1% and 5.4% demonstrate the accuracy of the ecarin clotting time (ECT) assay. Differences in the interindividual responsiveness to r-hirudin were analyzed on r-hirudin- spiked blood samples obtained from 50 healthy blood donors. CV- values between 1.8% and 6% measured at r-hirudin concentrations between 0.5 and 4 µg/ml indicate remarkably slight differences in r-hirudin responsiveness. ECT assay results of the ex vivo blood samples linearily correlate (r = 0.79) to the concentration of r-hirudin. Moreover, assay results were not influenced by treatment with aprotinin or heparin. These findings together with the short measuring time with less than 120 seconds warrant the whole blood ECT to be a suitable assay for monitoring of r-hirudin anticoagulation in cardiac surgery.

Sign in / Sign up

Export Citation Format

Share Document