The SARS-CoV-2 virus causing COVID-19 disease has emerged expeditiously in the world and has been declared pandemic since March 2020, by World Health Organization (WHO). The destructive effects of SARS-CoV-2 infection are increased among the patients with pre-existing chronic conditions and, in particular, this review focuses on patients with underlying cardiovascular complications. The expression pattern and potential functions of SARS-CoV-2 binding receptors and the attributes of SARS-CoV-2 virus tropism in a physio-pathological state of heart and blood vessel are precisely described. Of note, the atheroprotective role of ACE2 receptors is reviewed. A detailed description of the possible detrimental role of SARS-CoV-2 infection in terms of vascular leakage, including endothelial glycocalyx dysfunction and bradykinin 1 receptor stimulation is concisely stated. Furthermore, the potential molecular mechanisms underlying SARS-CoV-2 induced clot formation in association with host defense components, including activation of FXIIa, complements and platelets, endothelial dysfunction, immune cell responses with cytokine-mediated action are well elaborated. Moreover, a brief clinical update on patient with COVID-19 disease with underlying cardiovascular complications and those who had new onset of cardiovascular complications post-COVID-19 disease was also discussed. Taken together, this review provides an overview of the mechanistic aspects of SARS-CoV-2 induced devastating effects, in vital organs such as the heart and vessels.
1 January 2025 in Brazilian Journal of Cardiovascular Surgery
Minimally invasive techniques for aortic valve replacement have become increasingly popular. The most common minimally invasive approaches are mini-sternotomy and right anterior mini-thoracotomy. We aimed to review the literature and compare clinical outcomes for these two approaches. Three databases were assessed. The primary endpoint was perioperative mortality. The secondary endpoints were reoperation for bleeding, stroke, operation duration, intensive care unit length of stay, cardiopulmonary bypass time, cross-clamping time, hospital length of stay, paravalvular leak, renal complications, conversion to full sternotomy, permanent pacemaker implantation, and wound infection. Random effects models were performed. Ten studies were included in the meta-analysis (30,524 patients). There was no difference in perioperative mortality between groups (odds ratio: 0.83; 95% confidence interval 0.57-1.21; P=0.33). In comparison with mini-sternotomy, right anterior mini-thoracotomy showed higher rates of reoperation for bleeding (odds ratio: 0.69; 95% confidence interval 0.50-0.97; P=0.03), lower rates of stroke (odds ratio: 1.27; 95% confidence interval 1.01-1.60; P=0.04), and longer operation duration (standard mean difference: -0.58; 95% confidence interval -1.01 to -0.14; P=0.01). Other secondary endpoints were not statistically significant. The results suggest that both techniques present similar perioperative mortality rates for aortic valve replacement. However, right anterior mini-thoracotomy is associated with higher rates of reoperation for bleeding, lower rates of stroke, and longer operation duration time.
22 June 2023 in Zeitschrift für Herz-,Thorax- und Gefäßchirurgie