Pretreatment with Methylprednisolone in Coronary Artery Bypass Grafting Influences the Levels of Histamine and Tryptase in Serum but Not in Bronchoalveolar Lavage Fluid

1994 ◽  
Vol 86 (1) ◽  
pp. 49-53 ◽  
Author(s):  
F. J. van Overveld ◽  
R. F. De Jongh ◽  
P. G. Jorens ◽  
P. Walter ◽  
L. Bossaert ◽  
...  
Keyword(s):  
Coronary Artery ◽  
Coronary Artery Bypass Grafting ◽  
Mast Cells ◽  
Bronchoalveolar Lavage ◽  
Coronary Artery Bypass ◽  
Extracorporeal Circulation ◽  
Bronchoalveolar Lavage Fluid ◽  
Artery Bypass ◽  
Lavage Fluid ◽  
Bypass Grafting

1. The presence of histamine and tryptase in serum during and after coronary artery bypass grafting may be an indication of the induction of inflammation. 2. One group of patients received no glucocorticoids and a second group received methylprednisolone before extracorporeal circulation. In the steroid group no effects were seen on the basal levels of histamine (2.84 + 0.12 ng/ml) and tryptase (030 + 0.05 ng/ml) during and after surgery. In the other group two peak levels of histamine were observed: one at 10 min after starting extracorporeal circulation (4.19 +1.79 ng/ml) and another at 4h after surgery (8.26 +4.85 ng/ml). In this group tryptase was only elevated during the period of extracorporeal circulation (1.54+ 0.16 ng/ml). 3. There were no differences between the two groups in complement activation. C3a levels rose to 170 +8% and 180 +10% of the initial value in the steroid and non-steroid group, respectively. 4. It was concluded that during surgery mast cells were activated, but since tryptase levels decreased in the post-operative period, the second increase in the histamine level can be explained by activation of basophils or by an unknown mechanism for the release of histamine but not tryptase by mast cells. 5. In the bronchoalveolar lavage fluid the levels of histamine and tryptase showed no differences between the two groups of patients, but histamine was enhanced compared with normal levels.

scholarly journals The problem of calcified ascending aorta during aortocoronary bypass

2004 ◽  
Vol 61 (1) ◽  
pp. 15-20
Author(s):  
Dusko Nezic ◽  
Aleksandar Knezevic ◽  
Milan Cirkovic ◽  
Branko Petrovic ◽  
Miomir Jovic ◽  
...  
Keyword(s):  
Coronary Artery ◽  
Coronary Artery Bypass Grafting ◽  
Coronary Artery Bypass ◽  
Extracorporeal Circulation ◽  
Artery Bypass ◽  
Ascending Aorta ◽  
Beating Heart ◽  
The Other ◽  
Bypass Grafting ◽  
Artery Bypass Grafting

Heavily calcified ascending aorta significantly increased morbidity and lethality during open-heart surgery. Cannulation and clamping (partial or total) of severely atherosclerotic ascending aorta can easily cause damage and rupture of aortic wall, with consequential distal (often fatal) embolization with atheromatous debris (brain, myocardium). From June 1998. until June 2000, 11 of 2 136 (0.5%) patients who underwent coronary artery bypass grafting were with the severe atheromatous ascending aorta. The site of cannulation was in the aortic arch in three patients (aorta was occluded with Foley catheter in one case, and single clamp technique was used in the other two cases). The femoral artery was the cannulation site in other five cases. Profound hypothermia, ventricular fibrillation, and circulatory arrest, with no cross-clamping or cardioplegia, were used in three patients. Two patients were operated on with extracorporeal circulation, one in normothermia, on the beating heart, the other in moderate hypothermia, on fibrillating heart. In three patients myocardial revascularization was performed on the beating heart, in normothermia, without extracorporeal circulation. Postoperative course was uneventful in all 11 patients. Neither atheroembolism in the peripheral organs, nor atheroembolism of the extramities occurred. The proposed surgical approaches have the potential to reduce the prevalence of stroke and systemic embolization associated with coronary artery bypass grafting in patients with heavily calcified ascending aorta. This result was achieved due to the applied modifications of standard cardiosurgical technique.

Minimally invasive versus conventional extracorporeal circulation circuits in patients undergoing coronary artery bypass surgery: a propensity-matched analysis

Perfusion ◽  
2019 ◽  
Vol 34 (7) ◽  
pp. 590-597 ◽  
Author(s):  
Shekhar Saha ◽  
Sam Varghese ◽  
Mike Herr ◽  
Marcus Leistner ◽  
Christian Ulrich ◽  
...  
Keyword(s):  
Coronary Artery ◽  
Coronary Artery Bypass Grafting ◽  
Minimally Invasive ◽  
Hospital Mortality ◽  
Coronary Artery Bypass ◽  
Extracorporeal Circulation ◽  
Artery Bypass ◽  
Circulation System ◽  
Bypass Grafting ◽  
Artery Bypass Grafting

Objectives: Minimally invasive extracorporeal circulation circuits provide several advantages compared to conventional extracorporeal circulation circuits. We compared the results of a minimally invasive extracorporeal circulation system with those of conventional extracorporeal circulation system, in patients undergoing isolated coronary artery bypass grafting. Methods: We identified 753 consecutive patients who underwent coronary artery bypass grafting at our centre between October 2014 and September 2016. These patients were divided into two groups: a minimally invasive extracorporeal circulation group (M, n = 229) and a conventional extracorporeal circulation group (C, n = 524). Baseline parameters, details of cardiac surgery as well as postoperative complications and outcomes were compared by means of a propensity-matched analysis of 180 matched pairs. Results: The median EuroSCORE II was 1.3%. Transfusion requirement of packed red blood cells (p = 0.002) was lower in Group M compared to conventional extracorporeal circulation systems. There were no differences in hospital mortality or in rates of adverse events between the matched groups. Total in-hospital mortality of the cohort was 1.7%. Conclusion: The use of minimally invasive extracorporeal circulation is associated with a significantly lower use of blood products after isolated coronary revascularisation. There were no differences concerning duration of surgery, complication rates and mortality between the groups. Therefore, the application of minimally invasive extracorporeal circulation systems should be considered as preferred technique in isolated coronary artery bypass grafting procedures.

scholarly journals Conventional versus minimally invasive extracorporeal circulation in patients undergoing cardiac surgery: protocol for a randomised controlled trial (COMICS)

Perfusion ◽  
2020 ◽  
pp. 026765912094673
Author(s):  
Gianni D Angelini ◽  
Barnaby C Reeves ◽  
Jonathan Evans ◽  
Lucy A Culliford ◽  
Laura Collett ◽  
...  
Keyword(s):  
Coronary Artery ◽  
Coronary Artery Bypass Grafting ◽  
Minimally Invasive ◽  
Coronary Artery Bypass ◽  
Extracorporeal Circulation ◽  
Controlled Trial ◽  
Artery Bypass ◽  
Bypass Grafting ◽  
Artery Bypass Grafting ◽  
Randomised Controlled

Introduction: Despite low mortality, cardiac surgery patients may experience serious life-threatening post-operative complications, often due to extracorporeal circulation and reperfusion. Miniaturised cardiopulmonary bypass (minimally invasive extracorporeal circulation) has been developed aiming to reduce the risk of post-operative complications arising with conventional extracorporeal circulation. Methods: The COMICS trial is a multi-centre, international, two-group parallel randomised controlled trial testing whether type II, III or IV minimally invasive extracorporeal circulation is effective and cost-effective compared to conventional extracorporeal circulation in patients undergoing elective or urgent coronary artery bypass grafting, aortic valve replacement or coronary artery bypass grafting + aortic valve replacement. Randomisation (1:1 ratio) is concealed and stratified by centre and surgical procedure. The primary outcome is a composite of 12 serious complications, objectively defined or adjudicated, 30 days after surgery. Secondary outcomes (at 30 days) include other serious adverse events (primary safety outcome), use of blood products, length of intensive care and hospital stay and generic health status (also at 90 days). Status of the trial: Two centres started recruiting on 08 May 2018; 10 are currently recruiting and 603 patients have been randomised (11 May 2020). The recruitment rate from 01 April 2019 to 31 March 2020 was 40-50 patients/month. About 80% have had coronary artery bypass grafting only. Adherence to allocation is good. Conclusions: The trial is feasible but criteria for progressing to a full trial were not met on time. The Trial Steering and Data Monitoring Committees have recommended that the trial should currently continue.

scholarly journals Minimally invasive extracorporeal circulation improves quality of life after coronary artery bypass grafting

2016 ◽  
Vol 50 (6) ◽  
pp. 1196-1203 ◽  
Author(s):  
Kyriakos Anastasiadis ◽  
Polychronis Antonitsis ◽  
Georgia Kostarellou ◽  
Athanassios Kleontas ◽  
Apostolos Deliopoulos ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Coronary Artery ◽  
Coronary Artery Bypass Grafting ◽  
Minimally Invasive ◽  
Coronary Artery Bypass ◽  
Extracorporeal Circulation ◽  
Artery Bypass ◽  
Bypass Grafting ◽  
Artery Bypass Grafting
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