Transcatheter Aortic Valve Replacement in Low Surgical Risk Patients: An Updated Metanalysis of Extended Follow-Up Randomized Controlled Trials.

The long-term safety and effectiveness of transcatheter aortic valve replacement (TAVR) compared with surgical aortic valve replacement (SAVR) in low surgical risk has not been evaluated in a pooled analysis. An electronic database search was conducted for randomized controlled trials with a maximal 5 years clinical and echocardiographic follow-up including low surgical risk patients who underwent TAVR or SAVR. We calculated odds ratio (OR) and 95% confidence intervals (CIs) using a random-effects model. Subgroups analysis was performed for permanent pacemaker implantation and paravalvular leaks. Three randomized controlled trials were included with a total of 2,611 low surgical risk patients (Society of Thoracic Surgeons score <4%). Compared with SAVR, the TAVR group had similar rates of all-cause mortality (OR 0.94,95% CI 0.65 to 1.37, p = 0.75) and disabling stroke (OR 0.84, 95% CI 0.52 to 1.36, p = 0.48). No significant differences were registered in the TAVR group in terms of major cardiovascular events (OR 0.96, 95% CI 0.67 to 1.38, p = 0.83), myocardial infarction (OR 0.69, 95% CI 0.34 to 1.40, p = 0.31), valve thrombosis (OR 3.11, 95% CI 0.29 to 33.47, p = 0.35), endocarditis (OR 0.71,95% CI 0.35 to 1.48, p = 0.36), aortic valve reintervention (OR 0.93, 95% CI 0.52 to 1.66, p = 0.80), and rehospitalization (OR 0.80, 95% CI 0.52 to 1.02, p = 0.07) compared with SAVR. However, TAVR patients had a higher risk of paravalvular leaks (OR 8.21, 95% CI 4.18 to 16.14, p <0.00001), but lower rates of new-onset atrial fibrillation (OR 0.27,95% CI 0.17 to 0.30, p <0.0001). The rates of permanent pacemaker implantation were comparable from 1 year up to a maximum of 5 years (OR 1.32, 95% CI 0.88 to 1.97, p = 0.18). Lastly, TAVR had a greater effective orifice area (0.10 cm2/m2, 95% CI 0.05 to 0.15, p = 0.0001), but similar transvalvular mean gradients (0.60, 95% CI 3.94 to 2.73, p = 0.72). In conclusion, TAVR patients had similar long-term outcomes compared with SAVR, except for an elevated risk of paravalvular leaks in the TAVR group and increased rates of atrial fibrillation in the SAVR cohort.

A Meta-Analysis of Short-Term Outcomes of TAVR versus SAVR in Bicuspid Aortic Valve Stenosis and TAVR Results in Different Bicuspid Valve Anatomies.

BACKGROUND: To provide a comprehensive analysis of the current literature comparing the outcomes of surgical aortic valve replacement (SAVR) and transcatheter aortic valve replacement (TAVR) in patients with bicuspid aortic stenosis (BAS), with particular attention to BAV morphology in patients undergoing TAVR. METHODS: Following PRISMA guidelines, all relevant articles with no design restrictions from PubMed, CCTR (Cochrane Controlled Trials Register), and Google Scholar were screened for inclusion. Studies were included if they reported clinical endpoints for SAVR and TAVR or, in BAS treated with TAVR, for type 1 and non-type 1 morphology. Odds ratio and Cohen's D were considered as effect size measurements for qualitative and quantitative variables, respectively. RESULTS: A total of eight studies comparing short-term outcomes between SAVR and TAVR and nine studies with outcomes data between type 1 and non-type 1 BAS treated with TAVR were considered for the final analysis. No statistically significant difference was found for what concerns the rates of death, stroke, and acute kidney injury between SAVR and TAVR. In comparison to patients undergoing SAVR, the incidence of PPI (permanent pacemaker implantation) was greater in the TAVR group (OR 0.35, 95% CI 0.15-0.79, p = 0.01), and the frequency of bleeding events was found to be higher among patients undergoing SAVR (OR 4.3, 95% CI 2.9-6.4, p < 0.001). The probabilities of 30-day mortality, stroke, and any bleeding were not significantly affected by bicuspid valve morphology in TAVR patients. PPI or development of new conduction anomalies was found to be more frequent in type 1 anatomies (OR 0.46, 95% CI 0.30-0.70, p <0.001). Mildly lower post-procedural transprothesic gradients were found in patients with type 1 morphology. CONCLUSIONS: In BAS patients, TAVR has comparable short-term outcomes rates with SAVR, but higher PPI rates and lower incidence of bleeding events. In patients undergoing TAVR, type 1 BAS is associated with lower postoperative transvalvular gradients but higher PPI rates and conduction abnormalities.

Vacuum-assisted wound closure with instillation followed by nitinol clips application to treat deep sternal wound infections after cardiac surgery: evolution of a two-step approach.

INTRODUCTION: DSWI, or mediastinitis, is a life-threatening complication following cardiac surgery. Although infrequent, it can cause significant morbidity and mortality, often requires multiple procedures, and increases health care costs. Different treatment approaches have been used. OBJECTIVE: This article compares closed catheter irrigation with the currently used 2-stage approach using a proprietary vacuum-assisted wound closure with instillation system followed by sternal synthesis with nitinol clips. MATERIALS AND METHODS: The records of 34 patients with DSWI who underwent cardiac surgery between January 2012 and December 2020 were retrospectively analyzed. Patients received either closed catheter irrigation or vacuum-assisted wound closure with instillation for decontamination and subsequent closure with pectoralis major flaps (with or without the modified Robicsek technique), or more recently, with nitinol clips. RESULTS: Wound healing was achieved in all patients treated with vacuum-assisted wound closure with instillation. In this group, no patients died and the mean hospital stay was reduced. CONCLUSIONS: These findings suggest that use of vacuum-assisted wound closure with instillation along with nitinol clips for sternal closure decreases mortality and reduces the length of hospital stay, making it a safer, effective, and less invasive technique for the management of DSWI after cardiac surgery.

Acute type A aortic dissection in bicuspid versus tricuspid aortic valve patients: focus on geometrical features of the aorta.

OBJECTIVES: This retrospective observational study aimed to assess the geometrical features, including diameters, length and angulation, of the ascending aorta with bicuspid and tricuspid aortic valve and to identify imaging markers potentially predicting whether aortopathy is likely to evolve chronically or to complicate with acute type A dissection. METHODS: Angio-computed-tomography scans of 354 patients (from 3 centres) with non-dilated (n = 97), aneurysmal (n = 100) or dissected aorta (n = 157) were reviewed. Diameters were measured at root, sinotubular junction, ascending, brachio-cephalic trunk origin; centreline lengths of the root and tubular tract and ascending-arch angle (between the ascending tubular tract axis and the proximal arch axis) were also measured. For 12 dissection patients, pre-dissection scans were available to investigate predisposing aortic geometry. Statistical analysis included: tricuspid versus bicuspid comparisons in each subgroup; univariate and multivariate analyses of the predictors of ascending-arch angle narrowing; and estimation of diagnostic accuracy of the angle parameter. RESULTS: Diameters and lengths were similar between aneurysms and dissections, whereas dissections showed a significant ascending-arch angle narrowing (117 ± 13° in tricuspid, 115 ± 14° in bicuspid) compared to non-dilated and aneurysmal aortas (all P < 0.001). The best angle cut-off to discriminate dissection patients was 131° (96% sensitivity). In patients with a pre-dissection scan, Asc-Arch narrowing was already present before dissection. In non-dissected aortas over-angulation was predicted by root phenotype dilatation both in bicuspid and tricuspid patients. Bicuspid patients with non-dilated aorta showed elongated root (P = 0.027), a feature significantly correlated with Asc-Arch angle narrowing (P = 0.008). CONCLUSIONS: The ascending-arch angle is promising as a risk marker for dissection to be used along with diameter. Its narrowing seems to be associated with elongation of the root, a feature that bicuspid patients can show even without significant dilatation. Root phenotype aortopathy may be at higher risk also with tricuspid aortic valve.

Current knowledge on the association between cardiovascular and periodontal disease: an umbrella review.

INTRODUCTION: Periodontal disease (PD) and cardiovascular diseases (CVD) are among the most common pathologies in the world and their relationship has long been studied. Both conditions lead to a chronic inflammatory process with degenerative characteristics and their biunivocal correlation is now well established. The aim of this umbrella review on cardiovascular and periodontal disease was to evaluate the real degree of association between these two pathological conditions. EVIDENCE ACQUISITION: We conducted a comprehensive literature search on PubMed/Medline and in the Cochrane Library for systematic reviews focused on clinical evidence regarding the relationship between PD and CVD. The internal validity of systematic reviews and meta-analyses was formally analyzed using the Overview Quality Assessment Questionnaire (OQAQ) Tool. The umbrella review was planned in accordance with current international recommendations and was described as specified by the PRISMA Guidelines. EVIDENCE SYNTHESIS: Thirty-one systematic reviews, including 8 meta-analyses for a total of 507 clinical studies and over 3,549,966 patients were included. PD resulted to be associated with a higher risk of developing CVD (acute coronary syndrome, acute myocardial infarction) and cerebrovascular diseases (ischemic stroke); however, if the treatment of periodontitis reduces the risk of CVD events related is yet to be investigated. CONCLUSIONS: To date, the relationship between CVD and PD provides heterogeneous data. There is an association between PD and CVD, but a causal relationship cannot be established. Further research with properly designed long-term follow-up studies are needed in order to examine various physiopathological aspects of their association.

Modified Risk Tobacco Products and Cardiovascular Repair: Still Very "Smoky".

Smoking habits represent a cardiovascular risk factor with a tremendous impact on health. Other than damaging differentiated and functional cells of the cardiovascular system, they also negatively affect reparative mechanisms, such as those involved in cardiac fibrosis and in endothelial progenitor cell (EPC) activation. In recent years, alternative smoking devices, dubbed modified tobacco risk products (MRPs), have been introduced, but their precise impact on human health is still under evaluation. Also, they have not been characterized yet about the possible negative effects on cardiovascular reparative and regenerative cells, such as EPCs or pluripotent stem cells. In this perspective, we critically review the still scarce available data on the effects of MRPs on molecular and cellular mechanisms of cardiovascular repair and regeneration.

Natural Activators of Autophagy Increase Maximal Walking Distance and Reduce Oxidative Stress in Patients with Peripheral Artery Disease: A Pilot Study.

Trehalose, spermidine, nicotinamide, and polyphenols have been shown to display pro-autophagic and antioxidant properties, eventually reducing cardiovascular and ischemic complications. This study aimed to investigate whether a mixture of these components improves maximal walking distance (MWD) in peripheral artery disease (PAD) patients. Nitrite/nitrate (NOx), endothelin-1, sNOX2-dp, H2O2 production, H2O2 break-down activity (HBA), ATG5 and P62 levels, flow-mediated dilation (FMD), and MWD were evaluated in 20 PAD patients randomly allocated to 10.5 g of mixture or no-treatment in a single-blind study. The above variables were assessed at baseline and 60 days after mixture ingestion. Compared with baseline, mixture intake significantly increased MWD (+91%; p < 0.01) and serum NOx (+96%; p < 0.001), whereas it significantly reduced endothelin-1 levels (−30%, p < 0.01). Moreover, mixture intake led to a remarkable reduction in sNOX2dp (−31%, p < 0.05) and H2O2 (−40%, p < 0.001) and potentiated antioxidant power (+110%, p < 0.001). Finally, mixture ingestion restored autophagy by increasing ATG5 (+43%, p < 0.01) and decreasing P62 (−29%, p < 0.05). No changes in the above-mentioned variables were observed in the no-treatment group. The treatment with a mixture of trehalose, spermidine, nicotinamide, and polyphenols improves MWD in PAD patients, with a mechanism possibly related to NOX2-mediated oxidative stress downregulation and autophagic flux upregulation. Clinical Trial Registration unique identifier: NCT04061070.

Sex-Related Differences in Oxidative, Platelet, and Vascular Function in Chronic Users of Heat-not-Burn vs. Traditional Combustion Cigarettes.

Smoking is still a major cardiovascular risk factor, despite many public awareness campaigns and dedicated interventions. Recently, modified risk products (MRP), e.g., heat-not-burn cigarettes (HNBCs), have been introduced as surrogates of traditional combustion cigarettes (TCCs). Although these products are promoted as healthier than TCCs, few studies have been conducted to assess it. This work is a sex-focused sub-study of a prospective observational study in which apparently healthy chronic TCC smokers were age-matched with regular HNBC users. Blood samples were collected for biochemical assays and blood pressure and flow-mediated dilation (FMD) were measured. Out of 60 subjects, 33 (55%) were women, and 27 (45%) men, with 11 (33%) vs. 9 (33%) non-smokers, respectively, 10 (30%) vs. 10 (37%) TCC smokers, and 12 (36%) vs. 8 (30%) HNBC smokers (p = 0.946). Bivariate and multivariable analyses showed no statistically significant between-sex differences in NO, H2O2, sCD40L, sNox2-dp, sP-selectin, platelet aggregation, cotinine or FMD, overall, in non-smokers, in TCC smokers, or in HNBC smokers (all p > 0.05). HNBCs appeared safer than TCCs when focusing on Nox2-dp (p = 0.026) and sP-selectin (p = 0.050) but had similar levels of the other measured markers. In conclusion, HNBCs have similar detrimental effects on women and men's oxidative stress (H2O2: p = 0.49; sNox2-dp: p = 0.31) and platelet activation (sP-selectin: p = 0.33; platelet aggregation p = 0.87).

Acute thrombotic occlusion of a brachiocephalic branch graft and pseudoaneurysm formation after debranching surgery for a "non-A non-B" aortic dissection.

Non-A non-B aortic dissection is a pathology with potentially life-threatening consequences, and aortic debranching followed by thoracic endovascular aortic repair is one of the possible treatment options. Branch graft occlusion is an infrequent complication and no definite guidelines exist about postoperative antithrombotic therapy nor preoperative evaluation of individual anatomical characteristics-in particular regarding cerebral circulation-in such patients. We present the case of a 54-year-old man undergoing an aortic debranching procedure for a thoracoabdominal aortic dissection originating in the aortic arch, complicated by thrombotic occlusion of the brachiocephalic branch of the prosthesis and pseudoaneurysm of the ascending aorta, with our management and considerations.

Platelet Activation Favours NOX2-Mediated Muscle Damage in Elite Athletes: The Role of Cocoa-Derived Polyphenols.

Mechanisms of exercise-induced muscle injury with etiopathogenesis and its consequences have been described; however, the impact of different intensities of exercise on the mechanisms of muscular injury development is not well understood. The aim of this study was to exploit the relationship between platelet activation, oxidative stress and muscular injuries induced by physical exercise in elite football players compared to amateur athletes. Oxidant/antioxidant status, platelet activation and markers of muscle damage were evaluated in 23 elite football players and 23 amateur athletes. Compared to amateurs, elite football players showed lower antioxidant capacity and higher oxidative stress paralleled by increased platelet activation and muscle damage markers. Simple linear regression analysis showed that sNOX2-dp and H2O2, sCD40L and PDGF-bb were associated with a significant increase in muscle damage biomarkers. In vitro studies also showed that plasma obtained from elite athletes increased oxidative stress and muscle damage in human skeletal muscle myoblasts cell line compared to amateurs' plasma, an effect blunted by the NOX2 inhibitor or by the cell treatment with cocoa-derived polyphenols. These results indicate that platelet activation increased muscular injuries induced by oxidative stress. Moreover, NOX2 inhibition and polyphenol extracts treatment positively modulates redox status and reduce exercise-induced muscular injury.

A snapshot global survey on side effects of COVID-19 vaccines among healthcare professionals and armed forces with a focus on headache.

BACKGROUND: New messenger RNA (mRNA) and adenovirus-based vaccines (AdV) against Coronavirus disease 2019 (COVID-19) have entered large scale clinical trials. Since healthcare professionals (HCPs) and armed forces personnel (AFP) represent a high-risk category, they act as a suitable target population to investigate vaccine-related side effects, including headache, which has emerged as a common complaint. METHODS: We investigated the side-effects of COVID-19 vaccines among HCPs and AFP through a 38 closed-question international survey. The electronic link was distributed via e-mail or via Whatsapp to more than 500 contacts. Responses to the survey questions were analyzed with bivariate tests. RESULTS: A total of 375 complete surveys have been analyzed. More than 88% received an mRNA vaccine and 11% received AdV first dose. A second dose of mRNA vaccine was administered in 76% of individuals. No severe adverse effects were reported, whereas moderate reactions and those lasting more than 1 day were more common with AdV (P=0.002 and P=0.024 respectively). Headache was commonly reported regardless of the vaccine type, but less frequently, with shorter duration and lower severity that usually experienced by participants, without significant difference irrespective of vaccine type. CONCLUSIONS: Both mRNA and AdV COVID-19 vaccines were safe and well tolerated in a real-life subset of HCPs and AFP subjects.

3D morphometric analysis of ascending aorta as an adjunctive tool to predict type A acute aortic dissection.

BACKGROUND: Acute type A aortic dissection (AAAD) is a pathological process that implicates the ascending aorta and represents a surgical emergency burdened by high mortality if not promptly treated in the first hours of onset. Despite best efforts, the annual incidence rates of aortic dissection has remained stable over the past decades. We measured aortic dimensions (aortic diameters, area, length and volume) using 3D multiplanar reconstruction imaging with the purpose of refining the risk- morphology for AAAD. METHODS: Computerized tomography angiography studies of three groups were compared retrospectively: patients affected by AAAD (AAAD group; n=71), patients affected by aortic aneurysm and subsequently subjected to ascending aorta replacement (Aneurysm, n=77) and a healthy aorta's group (Control, n=75). RESULTS: Mean diameters of AAAD (4.9 cm) and Aneurysm (5.1 cm) aortas were significantly larger than those of the control group (3.4 cm). In AAAD patients, an ascending aorta diameter greater than 5.5 cm was observed in 18% of patients. Multiple comparisons showed statistically significant differences among mean of the ratio of aortic root area to height between the three groups (P<0.001). In frontal and sagittal planes, the length of the ascending aorta was significantly greater in patients affected by aortic pathology (AAAD and aneurysm) than in the control group (P<0.001). Significant differences were confirmed when indexing the aortic length to patient's height and BSA, and the aortic volume to patient's BSA. CONCLUSIONS: Maximum transverse diameter, considered separately, is not the best predictor of aortic dissection. In our opinion, the introduction into clinical practice of measurements of the area, length, and volume of the aorta, as absolute or indexed values, could improve the selection of patients who would benefit from preventive surgical aortic replacement.

Artificial Intelligence (AI) and Cardiovascular Diseases: An Unexpected Alliance.

Cardiovascular disease (CVD), despite the significant advances in the diagnosis and treatments, still represents the leading cause of morbidity and mortality worldwide. In order to improve and optimize CVD outcomes, artificial intelligence techniques have the potential to radically change the way we practice cardiology, especially in imaging, offering us novel tools to interpret data and make clinical decisions. AI techniques such as machine learning and deep learning can also improve medical knowledge due to the increase of the volume and complexity of the data, unlocking clinically relevant information. Likewise, the use of emerging communication and information technologies is becoming pivotal to create a pervasive healthcare service through which elderly and chronic disease patients can receive medical care at their home, reducing hospitalizations and improving quality of life. The aim of this review is to describe the contemporary state of artificial intelligence and digital health applied to cardiovascular medicine as well as to provide physicians with their potential not only in cardiac imaging but most of all in clinical practice.

Hypothermia during Surgical Treatment of Type A Aortic Dissection: A 16 Years' Experience.

Acute aortic dissection (AAD) is among the most challenging cases for surgical treatment and requires procedural expertise for its safe conduct. Aortic surgery has undergone several changes over the last years, especially concerning cerebral protection. The brilliant results obtained with the aid of selective anterograde cerebral perfusion led to a progressive increase of circulatory arrest temperature, with the rise of safe time along with a reduction of the extracorporeal circulation time and hypothermia-related side effects. However, there is still no definitive consensus concerning the optimal range of temperature to be used during circulatory arrest. Objectives. This is a retrospective observational study, and we examined 16-year trends in the presentation, diagnosis, hospital outcome and treatment of A AAD type. In our Cardiac Surgery Unit in Policlinico Umberto I of Rome, our analysis focused on patients, who received ACP during aortic surgery and we analyzed the differences between two distinct groups based on the lowest temperature reached during CPB conduction: Lower Temperature Group (LT) (T < 24°C) versus Higher Temperature Group (HT) (T ≥ 24°C) arrest circulation temperature. Methods. Data from 241 patients enrolled between August 2002 and March 2018 were analyzed. Patients were divided according to the lowest temperature reached into 2 groups: Lower Temperature group (LT) (94 patients) and Higher Temperature Group (HT) (147 patients). Results. Our results showed a significant reduction of in-hospital mortality and in-hospital results in patients with higher CPB temperature. The global incidence of complications was statistically reduced in HT group: we found a statistical significant reduction of intestinal ischemia, and a similar trend also for other complications analyzed, such as infections. Since the two groups were similar for type of surgical procedures, we considered these differences depending on the lower temperature value reached, according to the current literature. Conclusions. We found a significantly higher mortality in patients with lower temperature during CPB and a global reduction of complications and in particular a significant reduction of intestinal ischemia in patients with higher temperature during CPB. We found a similar trend in other fields of investigations, so we can conclude that circulatory arrest performed at temperature ≥24°C nasopharyngeal temperature associated with ACP is a safe strategy for aortic surgery for AAD.