Management of Valvular Surgery

The aim of our study was to analyze mitochondrial and endoplasmic reticulum (ER) gene expression profiles in subcutaneous (SAT) and epicardial (EAT) adipose tissue, skeletal muscle, and myocardium in patients with and without CAD undergoing elective cardiac surgery. Thirty-eight patients, 27 with (CAD group) and 11 without CAD (noCAD group), undergoing coronary artery bypass grafting and/or valvular surgery were included in the study. EAT, SAT, intercostal skeletal muscle, and right atrium tissue and blood samples were collected at the start and end of surgery; mRNA expression of selected mitochondrial and ER stress genes was assessed using qRT-PCR. The presence of CAD was associated with decreased mRNA expression of most of the investigated mitochondrial respiratory chain genes in EAT, while no such changes were seen in SAT or other tissues. In contrast, the expression of ER stress genes did not differ between the CAD and noCAD groups in almost any tissue. Cardiac surgery further augmented mitochondrial dysfunction in EAT. In our study, CAD was associated with decreased expression of mitochondrial, but not endoplasmic reticulum stress genes in EAT. These changes may contribute to the acceleration of coronary atherosclerosis.

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TXA and stroke in seizure activity in valvular surgery

Journal of Anesthesia ◽

10.1007/s00540-021-02956-2 ◽

2021 ◽

Author(s):

Despoina G. Sarridou ◽

Afroditi Boutou ◽

Sophia Anastasia Mouratoglou

Keyword(s):

Seizure Activity ◽

Valvular Surgery

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Clinical predictors and angiographic features of acute coronary syndromes caused by systemic embolism

European Heart Journal ◽

10.1093/ehjci/ehaa946.1530 ◽

2020 ◽

Vol 41 (Supplement_2) ◽

Author(s):

A Jeronimo Baza ◽

C Salazar ◽

M.J Perez Vyzcaino ◽

L Nombela ◽

P Jimenez Quevedo ◽

...

Keyword(s):

Atrial Fibrillation ◽

Hospital Mortality ◽

Acute Coronary Syndromes ◽

Tertiary Hospital ◽

Control Group ◽

Systemic Embolism ◽

Clinical Predictors ◽

Coronary Syndrome ◽

Valvular Surgery ◽

Coronary Syndromes

Abstract Introduction Systemic embolism to coronary arteries is one of the mechanisms of acute myocardial infarction (AMI) of non-atherosclerotic cause. However, its clinical profile has not been properly established yet. Purpose To identify clinical predictors and angiographic characteristics of acute coronary syndromes caused by systemic embolism to a principal coronary artery (ACS-E), as well as to describe in-hospital mortality of these patients. Methods 40 patients with ACS-E, admitted between 2003 and 2018 in a tertiary hospital. Epidemiological, clinical and angiographic characteristics of these cases were compared with those from 4989 patients, attended for acute coronary syndrome of atherosclerotic cause (ACS-A) in the same hospital during the same period. Results Patients with ACS-E were younger (28% vs 10% were <45 years old, p<0.001) and had a higher proportion of women (43% vs 22%, p 0.003), atrial fibrillation (40% vs 5%, p<0.001) and neoplasia (18% vs 7%, p 0.009). They had also undergone previous valvular surgery more frequently than patients with ACS-A (13% vs 0.5%, p<0.001) and a higher proportion of them were under treatment with warfarin (15% vs 3%, p<0.001). Variables identified as independent predictors of ACS-E in the multivariate analysis are shown in the table. Regarding clinical presentation, ST elevation AMI was more frequent in ACS-E cases (83% vs 67%, p 0.04). Patients with ACS-E did not present any significative stenosis in other vessels apart from the culprit one (number of other vessels with at least 1 severe stenosis was 0 in the ACS-E group vs 1.33 + 1 in the ACS-A arm, p<0.001). PCI was attempted in 75% of the patients with ACS-E, resulting successful in 80% of the cases. On the other hand, 100% of SCA-A underwent PCI, with a success proportion of 99% (p<0.001). In-hospital mortality in ACS-E group was 15% and 4% in the control group (p<0.001). Conclusions ACS-E and ACS-A have different clinical and angiographic features. Atrial fibrillation, chronic warfarin treatment, previous valvular surgery, presence of any neoplasia and female sex are independent predictors for ACS-E. Funding Acknowledgement Type of funding source: None

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Subacute postoperative atrial fibrillation after heart surgery: incidence and predictive factors in cardiac rehabilitation

European Journal of Preventive Cardiology ◽

10.1093/eurjpc/zwab061.326 ◽

2021 ◽

Vol 28 (Supplement_1) ◽

Author(s):

V Rizza ◽

F Maranta ◽

L Cianfanelli ◽

R Grippo ◽

C Meloni ◽

...

Keyword(s):

Atrial Fibrillation ◽

Cardiac Surgery ◽

Hospital Stay ◽

Heart Surgery ◽

Troponin T ◽

Management Strategies ◽

Inpatient Rehabilitation ◽

Postoperative Atrial Fibrillation ◽

Funding Sources ◽

Valvular Surgery

Abstract Funding Acknowledgements Type of funding sources: None. Background. Postoperative atrial fibrillation (POAF) is the most common arrhythmic complication following cardiac surgery. It may occur between the second and fourth postoperative days as acute POAF, or within 30 days as subacute POAF (sPOAF). The incidence varies from 15% to 60%, with the highest rates observed in patients undergoing valvular surgery. POAF is associated with longer hospital stay and higher thromboembolic risk, which consistently increase patients’ morbidity and mortality. Identification of high-risk categories may allow optimization of in-hospital prevention and treatment, possibly improving clinical outcomes. Aim of the study. The aim of this study was to assess the incidence of sPOAF and to identify possible predictors in patients performing Cardiovascular Rehabilitation (CR) after Cardiac Surgery (CS). Methods. A single-centre retrospective study was performed on 383 post-cardiac surgery patients hospitalised in our CR Unit for inpatient rehabilitation. The entire population was on sinus rhythm at the admission in CR and continuous monitoring with 12-lead ECG telemetry was performed during the hospital stay. We calculated the incidence of sPOAF and then evaluated the predictive value of the following variables: anamnestic data, type of cardiac intervention, clinical course in both CS and CR Unit, laboratory parameters including baseline neutrophil-to-lymphocyte ratio (NLR). Results. Median age was 65 years (63% male). sPOAF was documented in 122 cases (31.9%). Patients developing sPOAF were older [median age 69 (63-76) vs. 61 (51-70); p < 0.001)], more frequently underwent complex surgical procedures (50% vs. 36%; p = 0.009) and were known for previous episodes of atrial fibrillation (27.9% vs. 11.2%; p < 0.001). On the first day after surgery (T1), sPOAF group showed higher values of glycemia [median 155 (126.5–186.8) vs. 129 (106.5–164); p < 0.001] and troponin T [median 721.5 (470.1–1084.3) vs. 488 (301.6-776.2); p < 0.001]. The multivariate analysis identified advanced age (OR 1.04, 95% CI 1.01-1.08; p = 0.023), acute POAF in the Cardiac Surgery Unit (OR 3.51, 95% CI 1.62-7.59; p = 0.001), baseline NLR (OR 1.46, 95% CI 1.10-1.93; p = 0.008) and T1-troponin > 552 ng/L (OR 4.16 95% CI 1.50-11.53; p = 0.006) as independent risk predictors of sPOAF during the CR period. Conclusions. sPOAF is common after cardiac surgery occurring in 31.9% of patients during CR. Age, acute POAF, baseline NLR and elevated troponin T on the first postoperative day were shown predictors of increased sPOAF risk. Recognition of new predictors of POAF could be helpful to better stratify patients, improving management strategies and outcomes.

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