A Bayesian meta-analysis of double kissing (DK) crush or provisional stenting for coronary artery bifurcation lesions.

OBJECTIVE: Despite the development of dedicated, two-stent strategies, including the double kissing (DK) crush technique, the ideal technique for coronary artery bifurcation stenting has not been identified. We aimed to compare and determine the absolute risk difference (ARD) of the DK crush technique alone versus provisional stenting approaches for coronary bifurcation lesions, using the Bayesian technique. METHOD: We queried PubMed/MEDLINE to identify randomized controlled trials (RCTs) that compared DK crush technique with provisional stenting for bifurcation lesions, published till January 2023. We used Bayesian methods to calculate the ARD and 95% credible interval (CrI). RESULTS: We included three RCTs, with 916 patients, in the final analysis. The ARD of cardiac death was centered at -0.01 (95% CrI: -0.04 to 0.02; Tau: 0.02, 85% probability of ARD of DK crush vs. provisional stenting <0). ARD for myocardial infarction was centered at -0.03 (95%CrI: -0.9 to 0.03; Tau: 0.05, 87% probability of ARD of DK crush vs. provisional stenting <0). ARD for stent thrombosis was centered at 0.00 (95% CrI: -0.04 to 0.03, Tau: 0.03, 51% probability of ARD for DK crush vs. provisional stenting <0). Finally, ARD for target lesion revascularization was centered at -0.05 (95% CrI: -0.08 to -0.03, Tau: 0.02, 99.97% probability of ARD for DK crush vs. provisional stenting <0). CONCLUSIONS: Bayesian analysis demonstrated a lower probability of cardiac death, myocardial infarction and target lesion revascularization, with DK crush compared with provisional stenting techniques, and a minimal probability of difference in stent thrombosis.

Social associations and cardiovascular mortality in the United States counties, 2016 to 2020.

BACKGROUND: The positive aspects of social interaction on health have been described often, with considerably less attention to their negative aspect. This study aimed to assess the impact of social associations on cardiovascular mortality in the United States. METHODS: The Centers for Disease Control and Prevention Wide-Ranging Online Data for Epidemiologic Research (CDC WONDER) data sets from 2016 to 2020 were used to identify death records due to cardiovascular disease in the United States population aged 15 years and older. The social association rate defined as membership associations per 10,000 population, accessed from the 2020 County Health Rankings data was used as a surrogate for social participation. All United States counties were grouped into quartiles based on their social association rate; Q1 being the lowest quartile of social association, and Q4 the highest quartile. Age-adjusted mortality rate (AAMR) was calculated for each quartile. County health factor rankings for the state of Texas were used to adjust the AAMR for baseline comorbidities of county population, using Gaussian distribution linear regression. RESULTS: Overall, the AAMR was highest in the 4th social association rate quartile (306.73 [95% CI, 305.72-307.74]) and lowest in the 1st social association rate quartile (266.80 [95% CI, 266.41-267.20]). The mortality rates increased in a linear pattern from lowest to highest social association rate quartiles. After adjustment for the county health factor ranks of Texas, higher social association rate remained associated with a significantly higher AAMR (coefficient 15.84 [95% CI, 12.78-18.89]). CONCLUSIONS: Our study reported higher cardiovascular AAMR with higher social associations in the United States, with similar results after adjustment for County Health Rankings in the state of Texas.

Bicuspid Aortic Valve Disease: Classifications, Treatments, and Emerging Transcatheter Paradigms.

Bicuspid aortic valve (BAV) is a common congenital valvular malformation, which may lead to early aortic valve disease and bicuspid-associated aortopathy. A novel BAV classification system was recently proposed to coincide with transcatheter aortic valve replacement being increasingly considered in younger patients with symptomatic BAV, with good clinical results, yet without randomized trial evidence. Procedural technique, along with clinical outcomes, have considerably improved in BAV patients compared with tricuspid aortic stenosis patients undergoing transcatheter aortic valve replacement. The present review summarizes the novel BAV classification systems and examines contemporary surgical and transcatheter approaches.

Impact of untreated chronic obstructive coronary artery disease on outcomes after transcatheter aortic valve replacement.

BACKGROUND AND AIMS: In transcatheter aortic valve replacement (TAVR) recipients, the optimal management of concomitant chronic obstructive coronary artery disease (CAD) remains unknown. Some advocate for pre-TAVR percutaneous coronary intervention, while others manage it expectantly. The aim of this study was to assess the impact of varying degrees and extent of untreated chronic obstructive CAD on TAVR and longer-term outcomes. METHODS: The authors conducted a retrospective cohort study of TAVR recipients from January 2015 to November 2021, separating patients into stable non-obstructive or varying degrees of obstructive CAD. The major outcomes of interest were procedural all-cause mortality and complications, major adverse cardiovascular events, and post-TAVR unplanned coronary revascularization. RESULTS: Of the 1911 patients meeting inclusion, 75%, 6%, 10%, and 9% had non-obstructive, intermediate-risk, high-risk, and extreme-risk CAD, respectively. Procedural complication rates overall were low (death 0.4%, shock 0.1%, extracorporeal membrane oxygenation 0.1%), with no difference across groups. At a median follow-up of 21 months, rates of acute coronary syndrome and unplanned coronary revascularization were 0.7% and 0.5%, respectively, in the non-obstructive population, rising in incidence with increasing severity of CAD (P < .001 for acute coronary syndrome/unplanned coronary revascularization). Multivariable analysis did not yield a significantly greater risk of all-cause mortality or major adverse cardiovascular events across groups. One-year acute coronary syndrome and unplanned coronary revascularization rates in time-to-event analyses were significantly greater in the non-obstructive (98%) vs. obstructive (94%) subsets (Plog-rank< .001). CONCLUSIONS: Transcatheter aortic valve replacement can be performed safely in patients with untreated chronic obstructive CAD, without portending higher procedural complication rates and with relatively low rates of unplanned coronary revascularization and acute coronary syndrome at 1 year.

Transcatheter versus surgical mitral valve repair in patients with mitral regurgitation.

OBJECTIVES: The aim of this study was to compare clinical outcomes of transcatheter and surgical mitral valve repair (SMVr) in primary mitral regurgitation (MR) and MR with heart failure with reduced ejection fraction (HFrEF). METHODS: In this retrospective cohort study, we used the Nationwide Readmission Database to identify primary MR and MR with HFrEF patients who underwent transcatheter or SMVr from 2016 to 2019. A propensity score with 1:1 matching was applied. The primary outcome was a cumulative event rate of major adverse cardiovascular events (MACE), which was a composite of all-cause mortality, myocardial infarction, stroke, heart failure, cardiac arrest and mitral valve replacement. Other important secondary outcome was in-hospital mortality. RESULTS: After propensity score matching, 2187 matched pairs were found in the primary MR cohort and 2178 matched pairs were found in the MR-HFrEF cohort. Transcatheter mitral valve repair (TMVr) had significantly higher medium-term MACE compared with SMVr in both cohorts (primary MR: hazard ratio: 1.73, 95% confidence interval: 1.33-2.26, P ≤ 0.001; MR-HFrEF: hazard ratio: 2.00, 95% confidence interval: 1.58-2.54, P ≤ 0.001). TMVr showed similar in-hospital mortality in both cohorts. CONCLUSIONS: Although TMVr showed better short-term outcomes, it had significantly higher medium-term MACE than SMVr in both cohorts. Thus, shared decision-making should be performed for TMVr after discussing the benefits and risks in patients who can undergo SMVr.

Heparin Dosing During Percutaneous Coronary Intervention and Obesity.

ABSTRACT: Unfractionated heparin is the most common anticoagulant used during percutaneous coronary intervention. Practice guidelines recommend an initial weight-based heparin bolus dose between 70 and 100 U/kg to achieve target activated clotting time (ACT) of 250-300 seconds. The impact of severe obesity on weight-based heparin dosing is not well studied. We performed a retrospective analysis of 424 patients undergoing percutaneous coronary intervention who received heparin for anticoagulation. We collected detailed data on cumulative heparin administration and measured ACT values in this cohort. We performed separate analyses to identify clinical predictors that may affect dose-response curves. There was significant variability in dosing with mean dose of 103.9 ± 32-U/kg heparin administered to achieve target ACT ≥ 250 seconds. Women received higher initial heparin doses when adjusted for weight than men (97.6 ± 31 vs. 89 ± 28 U/kg, P = 0.004), and only 49% of patients achieved ACT ≥ 250 s with the initial recommended heparin bolus dose (70-100 U/kg). Lower heparin dose (U/kg) was required in obese patients to achieve target ACT. In multivariate linear regression analysis with ACT as dependent variable, after inclusion of weight-based dosing for heparin, body mass index was the only significant covariate. In conclusion, there is significant variability in the therapeutic effect of heparin, with a lower weight-adjusted heparin dose required in obese patients.

The degree of permanent pacemaker dependence and clinical outcomes following transcatheter aortic valve implantation: implications for procedural technique.

Aims: Conduction abnormalities necessitating permanent pacemaker (PPM) implantation remain the most frequent complication post-transcatheter aortic valve implantation (TAVI), yet reliance on PPM function varies. We evaluated the association of right-ventricular (RV)-stimulation rate post-TAVI with 1-year major adverse cardiovascular events (MACE) (all-cause mortality and heart failure hospitalization). Methods and results: This retrospective cohort study of patients undergoing TAVI in two high-volume centers included patients with existing PPM pre-TAVI or new PPM post-TAVI. There was a bimodal distribution of RV-stimulation rates stratifying patients into two groups of either low [≤10%: 1.0 (0.0, 3.6)] or high [>10%: 96.0 (54.0, 99.9)] RV-stimulation rate post-TAVI. Hazard ratios (HR) and 95% confidence intervals (CI) were calculated comparing MACE in patients with high vs. low RV-stimulation rates post-TAVI. Of 4659 patients, 408 patients (8.6%) had an existing PPM pre-TAVI and 361 patients (7.7%) underwent PPM implantation post-TAVI. Mean age was 82.3 ± 8.1 years, 39% were women. A high RV-stimulation rate (>10%) development post-TAVI is associated with a two-fold increased risk for MACE [1.97 (1.20, 3.25), P = 0.008]. Valve implantation depth was an independent predictor of high RV-stimulation rate [odds ratio (95% CI): 1.58 (1.21, 2.06), P=<0.001] and itself associated with MACE [1.27 (1.00, 1.59), P = 0.047]. Conclusion: Greater RV-stimulation rates post-TAVI correlate with increased 1-year MACE in patients with new PPM post-TAVI or in those with existing PPM but low RV-stimulation rates pre-TAVI. A shallower valve implantation depth reduces the risk of greater RV-stimulation rates post-TAVI, correlating with improved patient outcomes. These data highlight the importance of a meticulous implant technique even in TAVI recipients with pre-existing PPMs.

Corrigendum: The safety and efficacy of balloon-expandable versus self-expanding trans-catheter aortic valve replacement in high-risk patients.

[This corrects the article DOI: 10.3389/fcvm.2023.1130354.].

Outcomes of out of hospital sudden cardiac arrest in India: A review and proposed reforms.

BACKGROUND: Bystander cardiopulmonary resuscitation (CPR) is the cornerstone in managing out-of-hospital cardiac arrest (OHCA). However, India lacks a formal sudden cardiac arrest (SCA) registry and the infrastructure for a robust emergency medical services (EMS) response system. Also, there exists an opportunity to improve widespread health literacy and awareness regarding SCA. Other confounding variables, including religious, societal, and cultural sentiments hindering timely intervention, need to be considered for better SCA outcomes. OBJECTIVES: We highlight the current trends and practices of managing OHCA in India and lay the groundwork for improving the awareness, education, and infrastructure regarding the management of SCA. CONCLUSION: Effective management of OHCA in India needs collaborative grassroots reformation. Establishing a large-scale SCA registry and creating official and societal guidelines will be pivotal for transforming OHCA patient outcomes.

Unmet Needs and Future Direction for Pulmonary Embolism Interventions.

Venous thromboembolism (VTE) usually develops in the deep veins of the extremities. Pulmonary embolism (PE) is a type of VTE that is most commonly (∼90%) caused by a thrombus that originates from the deep veins of the lower extremities. PE is the third most common cause of death after myocardial infarction and stroke. In this review, the authors investigate and discuss the risk stratification and definitions of the aforementioned categories of PE and further explore the management of acute PE along with the types of catheter-based treatment options and their efficacy.

Similar Events but Contrasting Impact: Appraising the Global Digital Reach of World Heart Day and Atrial Fibrillation Awareness Month.

Background: With over 18.6 million deaths annually, cardiovascular diseases (CVDs) are the leading cause of mortality worldwide. One such complication of CVDs that can result in stroke is atrial fibrillation (Afib). As part of global outreach and awareness, World Heart Day and Atrial Fibrillation Awareness Month are celebrated annually on 29 September and the month of September, respectively. Both of these events are important cardiovascular awareness initiatives to assist public education and develop awareness strategies, and they have received considerable support from leading international organizations. Objective: We studied the global digital impact of these campaigns via Google Trends and Twitter. Methods: We evaluated the overall number of tweets, impressions, popularity and top keywords/hashtags, and interest by region to determine the digital impact using various analytical tools. Hashtag network analysis was done using ForceAtlas2 model. Beyond social media, Google Trends web search analysis was carried out for both awareness campaigns to examine 'interest by region' over the past five years by analyzing relative search volume. Results: #WorldHeartDay and #UseHeart (dedicated social media hashtags for World Heart Day by the World Heart Federation) alone amassed over 1.005 billion and 41.89 million impressions as compared with the 1.62 million and 4.42 million impressions of #AfibMonth and #AfibAwarenessMonth, respectively. On Google Trends web search analysis, the impact of Afib awareness month was limited to the USA, but World Heart Day had a comparatively global reach with limited digital involvement in the African continent. Conclusions: World Heart Day and Afib awareness month present a compelling case study of vast digital impact and the effectiveness of targeted campaigning using specific themes and keywords. Though the efforts of the backing organizations are commended, planning and collaboration are needed to further widen the reach of Afib awareness month.

Virtual Cardiology: Past, Present, Future Directions, and Considerations.

Purpose of Review: Through this review, we attempt to explore the role of telemedicine and virtual visits in the field of cardiology pre-COVID-19 and during COVID-19 pandemic, their limitations and their future scope for delivery of care. Recent Findings: Telemedicine, which rose to prominence during COVID-19 pandemic, helped not only in reducing the burden on the healthcare system during a time of crisis but also in improving patient outcomes. Patients and physicians also favored virtual visits when feasible. Virtual visits were found to have the potential to be continued beyond the pandemic and play a significant role in patient care alongside conventional face-to-face visits. Summary: Although tele-cardiology has proven beneficial in terms of patient care, convenience, and access, it comes with its fair share of limitations-both logistical and medical. Whilst there remains a great scope for improvement in the quality of patient care provided through telemedicine, it has shown the potential to become an integral part of medical practice in the future. Supplementary Information: The online version contains supplementary material available at 10.1007/s12170-023-00719-0.

The burgeoning cardiovascular disease epidemic in Indians - perspectives on contextual factors and potential solutions.

Cardiovascular diseases (CVD) are the leading cause of death and disability in India. The CVD epidemic in Indians is characterized by a higher relative risk burden, an earlier age of onset, higher case fatality and higher premature deaths. For decades, researchers have been trying to understand the reason for this increased burden and propensity of CVD among Indians. It can partly be explained by population-level changes and the remaining by increased inherent biological risk. While increased biological risk can be attributed to phenotypic changes caused by early life influences, six major transitions can be considered largely responsible for the population-level changes in India-epidemiological, demographic, nutritional, environmental, social-cultural and economic. Although conventional risk factors explain substantial population attributable risk, the thresholds at which these risk factors operate are different among Indians compared with other populations. Therefore, alternate explanations for these ecological differences have been sought and multiple hypotheses have been proposed over the years. Prenatal factors that include maternal and paternal influences on the offspring, and postnatal factors, ranging from birth through childhood, adolescence and young adulthood, as well as inter-generational influences have been explored using the life course approach to chronic disease. In addition to this, recent research has illustrated the importance of the role of inherent biological differences in lipid metabolism, glucose metabolism, inflammatory states, genetic predispositions and epigenetic influences for the increased risk. A multifaceted and holistic approach to CVD prevention that takes into consideration population-level as well as biological risk factors would be needed to control the burgeoning CVD epidemic among Indians.

Predictors of Major Adverse Cardiovascular Events in Patients With Moderate Aortic Stenosis: Implications for Aortic Valve Replacement.

BACKGROUND: Although the prognosis and management of severe aortic stenosis has been extensively studied, the risk stratification and outcomes of patients with moderate aortic stenosis remain elusive. METHODS: This study included 674 patients from the Cleveland Clinic Health System with moderate aortic stenosis (aortic valve area, 1-1.5 cm2; mean gradient, 20-40 mm Hg; and peak velocity <4 m/s) and an NT-proBNP (N-terminal pro-B-type natriuretic peptide) level within 3 months of index diagnosis. The primary outcome of major adverse cardiovascular events (defined as the composite outcome of progression to severe aortic stenosis requiring aortic valve replacement, heart failure hospitalization, or death) was extracted from the electronic medical record. RESULTS: The mean age was 75.3±12 years, and 57% were men. During a median follow-up of 316 days, the composite end point occurred in 305 patients. There were 132 (19.6%) deaths, 144 (21.4%) heart failure hospitalizations, and 114 (16.9%) patients underwent aortic valve replacement. Elevated NT-proBNP (1.41 [95% CI, 1.01-1.95]; P=0.048), diabetes (1.46 [95% CI, 1.08-1.96]; P=0.01), elevated averaged mitral valve E/e' ratio (hazard ratio, 1.57 [95% CI, 1.18-2.10]; P<0.01), and presence atrial fibrillation at the time of index echocardiogram (hazard ratio, 1.83 [95% CI, 1.15-2.91]; P=0.01) were each independently associated with an increased hazard for the composite outcome and when taken collectively, each of these factors incrementally increased risk. CONCLUSIONS: These results further elucidate the relatively poor short-medium term outcomes and risk stratification of patients with moderate aortic stenosis, supporting randomized trials assessing the efficacy of transcatheter aortic valve replacement in this population.