Category: News & Events

Overview of Injectable Hydrogels for the Treatment of Myocardial Infarction

Announcing a new article publication for Cardiovascular Innovations and Applications journal. Myocardial infarction (MI) triggers adverse remodeling mechanisms, thus leading to heart failure. Since the application of biomaterial-based scaffolds emerged as a viable approach for providing mechanical support and promoting cell growth, injectable hydrogels have garnered substantial attention in MI treatment because of their minimally invasive administration through injection and diminished risk of infection. To fully understand the interplay between injectable hydrogels and infarcted myocardium repair, this review provides an overview of recent advances in injectable hydrogel-mediated MI therapy, including: I) material designs for repairing the infarcted myocardium, considering the pathophysiological mechanism of MI and design principles for biomaterials in MI treatment; II) the development of injectable functional hydrogels for MI treatment, including conductive, self-healing, drug-loaded, and stimulus-responsive hydrogels; and III) research progress in using injectable hydrogels to restore cardiac function in infarcted myocardium by promoting neovascularization, enhancing cardiomyocyte proliferation, decreasing myocardial fibrosis, and inhibiting excessive inflammation. Overall, this review presents the current state of injectable hydrogel research in MI treatment, offering valuable information to facilitate interdisciplinary knowledge transfer and enable the development of prognostic markers for suitable injectable materials.

https://www.scienceopen.com/hosted-document?doi=10.15212/CVIA.2024.0019

CVIA is available on the ScienceOpen platform and at Cardiovascular Innovations and Applications. Submissions may be made using ScholarOne Manuscripts. There are no author submission or article processing fees. Cardiovascular Innovations and Applications is indexed in the EMBASE, EBSCO, ESCI, OCLC, Primo Central (Ex Libris), Sherpa Romeo, NISC (National Information Services Corporation), DOAJ, Index Copernicus, Research4Life and Ulrich’s web Databases. Follow CVIA on Twitter @CVIA_Journal; or Facebook.

Bingcheng Yi, Yiwei Xu and Xiaoyu Wang et al. Overview of Injectable Hydrogels for the Treatment of Myocardial Infarction. CVIA. 2024. Vol. 9(1). DOI: 10.15212/CVIA.2024.0019

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Precision Monitoring of Antithrombotic Therapy in Cardiovascular Disease

Announcing a new article publication for Cardiovascular Innovations and Applications journal. Thrombosis, the process of blood clot formation in blood vessels, is an important protective mechanism for avoiding excessive blood spillage when an individual is exposed to trauma. The body has both a thrombosis inhibition and a thrombus removal system, which interact in a balanced manner. If these mechanisms become unbalanced, and too many clots form and block the lumen, thrombosis occurs. Thrombosis is currently the leading cause of death from disease in humans and is one of the most common events leading to many cardiovascular diseases. Antithrombotic drugs are an integral part of the pharmacological treatment regimens, and interventional strategies are currently recommended for thrombotic complications in patients with thrombosis. Despite major advances in these therapies, the high risk associated with thrombosis and bleeding remains, because of the complex interplay among patient comorbidities, drug combinations, multifaceted dose adjustments, and care settings. Detailed assessment of the effects of bleeding and thrombosis is necessary to establish optimal treatment plans for patients with thrombosis. This study retrospectively evaluated methods for assessing the risk of bleeding/ischemia in thrombosis and the individualized use of these methods.

https://www.scienceopen.com/hosted-document?doi=10.15212/CVIA.2024.0013

CVIA is available on the ScienceOpen platform and at Cardiovascular Innovations and Applications. Submissions may be made using ScholarOne Manuscripts. There are no author submission or article processing fees. Cardiovascular Innovations and Applications is indexed in the EMBASE, EBSCO, ESCI, OCLC, Primo Central (Ex Libris), Sherpa Romeo, NISC (National Information Services Corporation), DOAJ, Index Copernicus, Research4Life and Ulrich’s web Databases. Follow CVIA on Twitter @CVIA_Journal; or Facebook.

Meng Yuan, Haichu Wen and Yuan Wang et al. Precision Monitoring of Antithrombotic Therapy in Cardiovascular Disease. CVIA. 2024. Vol. 9(1). DOI: 10.15212/CVIA.2024.0013

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Transcatheter “Sandwich” Valve-in-Valve Implantation Technique for Pure Aortic Regurgitation: Operation Skills and Single Center Experience

Announcing a new article publication for Cardiovascular Innovations and Applications journal.  No commercial “on-label” transfemoral transcatheter aortic valve replacement (TAVR) device for aortic regurgitation (AR) is available in most countries. TAVR for AR with an “off-label” self-expanding device has shown acceptable procedural success but it elevated rates of early mortality and other complications. Valve disposition or displacement frequently occurs during transfemoral TAVR (TF-TAVR) for AR with a self-expanding valve, because of weak anchoring force.

To overcome this problem, the authors of this article propose a transcatheter “sandwich” valve-in-valve implantation (SVIV) technique, which has achieved good results. The initial results and experience in a case series comprising seven patients suggest that the SVIV technique using commercially available self-expanding valves may be an option for treating selected patients with AR with high risk for surgical valve replacement. Compared with the traditional method, this technique can decrease the incidence of complications, particularly conduction block, but several technical details require the operator’s attention. Additional research is required to confirm the superiority of this technology.

Read full research article: https://www.scienceopen.com/hosted-document?doi=10.15212/CVIA.2024.0007

CVIA is available on the ScienceOpen platform and at Cardiovascular Innovations and Applications. Submissions may be made using ScholarOne Manuscripts. There are no author submission or article processing fees. Cardiovascular Innovations and Applications is indexed in the EMBASE, EBSCO, ESCI, OCLC, Primo Central (Ex Libris), Sherpa Romeo, NISC (National Information Services Corporation), DOAJ, Index Copernicus, Research4Life and Ulrich’s web Databases. Follow CVIA on Twitter @CVIA_Journal; or Facebook.

Wenzhi Pan, Dawei Lin and Shasha Chen et al. Transcatheter “Sandwich” Valve-in-Valve Implantation Technique for Pure Aortic Regurgitation: Operation Skills and Single Center Experience. CVIA. 2024. Vol. 9(1). DOI: 10.15212/CVIA.2024.0007

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Prognostic Value of Neutrophil-to-lymphocyte Ratio for Patients with Acute Coronary Syndrome and Obstructive Sleep Apnea

Announcing a new article publication for Cardiovascular Innovations and Applications journal.  This study was aimed at investigating the effects of the neutrophil-to-lymphocyte ratio (NLR) on the long-term prognosis of patients with acute coronary syndrome (ACS) and obstructive sleep apnea (OSA).

This prospective study enrolled patients with ACS and OSA at Anzhen Hospital, Beijing, China between June 2015 and January 2020. OSA was defined by an apnea-hypopnea index ≥15 events·h−1. Baseline NLR was classified as high or low, according to the median. The primary endpoint was major adverse cardiovascular events (MACE), comprising cardiovascular death, recurrent myocardial infarction, stroke, and ischemia-driven revascularization.

A total of 1011 patients with ACS and OSA were enrolled, 506 of whom were in the high NLR (≥2.54) group. No significant differences in sleep monitoring indicators were observed. During a median follow-up of 2.8 (1.4, 3.6) years, a non-linear correlation between NLR and the incident risk of MACE was observed. After adjustment for clinically relevant confounders, a high NLR was independently associated with elevated MACE risk (adjusted HR = 1.45, 95% CI: 1.02–2.06, P = 0.040).

In patients with ACS and OSA, a high NLR was associated with poorer clinical outcomes during long-term follow-up.

Read full research paper: https://www.scienceopen.com/hosted-document?doi=10.15212/CVIA.2024.0016

CVIA is available on the ScienceOpen platform and at Cardiovascular Innovations and Applications. Submissions may be made using ScholarOne Manuscripts. There are no author submission or article processing fees. Cardiovascular Innovations and Applications is indexed in the EMBASE, EBSCO, ESCI, OCLC, Primo Central (Ex Libris), Sherpa Romeo, NISC (National Information Services Corporation), DOAJ, Index Copernicus, Research4Life and Ulrich’s web Databases. Follow CVIA on Twitter @CVIA_Journal; or Facebook.

Lei Zhen, Xiuhuan Chen and Jingyao Fan et al. Prognostic Value of Neutrophil-to-lymphocyte Ratio for Patients with Acute Coronary Syndrome and Obstructive Sleep Apnea. CVIA. 2024. Vol. 9(1). DOI: 10.15212/CVIA.2024.0016

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Intra-Aortic Balloon Pump Support in Patients with Acute Myocardial Infarction with Ventricular Septal Rupture

Announcing a new article publication for Cardiovascular Innovations and Applications journal.  An intra-aortic balloon pump (IABP) is the device most frequently used as a bridge to surgical repair in cases of myocardial infarction. However, robust evidence of IABP support for patients with postinfarction ventricular septal rupture (VSR) remains lacking. This study was aimed at assessing the effect of IABP support on 30-day prognosis in patients with acute myocardial infarction (AMI) complicated by VSR.

Retrospective data for patients with VSR after AMI at Fuwai Hospital between April 2002 and August 2020 were analyzed. Patients were initially stratified into two groups according to IABP implantation. The Kaplan-Meier method was used to determine the cumulative incidence of 30-day all-cause mortality. Multivariate logistic regression was used to evaluate the independent risk factors for 30-day mortality.

A total of 92 patients (mean age of 67.8 ± 8.3 years; 46.7% male) were included, 59 of whom underwent IABP implantation. Patients with rather than without IABP treatment were younger, were more often male, and had a higher body mass index and lower mean blood pressure at the onset of VSR. At 30 days, all-cause death occurred in 21 patients in the IABP group (35.59%) and 31 patients in the group without IABP (93.94%). After adjustment for age, sex, left atrial diameter, left ventricular diameter, perforation diameter and ventricular aneurysm, IABP support was found to be an independent protective predictor of 30-day all-cause mortality (hazard ratio: 0.22; 95% confidence interval: 0.12 to 0.42; P < 0.001).

IABP support was associated with lower 30-day mortality in patients with VSR after AMI. Patients with postinfarction VSR with hemodynamic instability or cardiogenic shock could receive IABP treatment as a bridge to surgical repair.

Read full research paper: https://www.scienceopen.com/hosted-document?doi=10.15212/CVIA.2024.0004

CVIA is available on the ScienceOpen platform and at Cardiovascular Innovations and Applications. Submissions may be made using ScholarOne Manuscripts. There are no author submission or article processing fees. Cardiovascular Innovations and Applications is indexed in the EMBASE, EBSCO, ESCI, OCLC, Primo Central (Ex Libris), Sherpa Romeo, NISC (National Information Services Corporation), DOAJ, Index Copernicus, Research4Life and Ulrich’s web Databases. Follow CVIA on Twitter @CVIA_Journal; or Facebook.

Xiao-Liang Luo, Haobo Xu and Chao Guo et al. Intra-Aortic Balloon Pump Support in Patients with Acute Myocardial Infarction with Ventricular Septal Rupture. CVIA. 2024. Vol. 9(1). DOI: 10.15212/CVIA.2024.0004

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Identification of Arrhythmia-Associated Gene Mutations in Chinese Patients with Primary Electrical Disorders or Sudden Cardiac Death

Announcing a new article publication for Cardiovascular Innovations and Applications journal. Sudden cardiac death (SCD), unexpected death based on sudden cardiac ejection cessation, accounts for 15–20% of unnatural deaths in developed countries. Primary electrical disorders (PEDs), a group of cardiac rhythm abnormalities without detectable structural heart disease, are a major cause of SCD in people younger than 35 years of age. Cardiac muscle contraction and relaxation are triggered by the action potential (AP), which is generated by ionic changes across the cell membrane. Thus, PEDs are influenced by mutations in AP-associated genes, such as KCNE1 and RYR2.

Six patients with SCD and 42 patients with arrhythmia with onset under the age of 25 were recruited, and targeted sequencing was used to determine the genetic etiologies.

Five mutations (RYR2: c.12269C>T, p.P4090L; KCNE1: c.169T>C, p.F57L; KCNQ1: c.853A>C, p.K285Q; KCNH2: c.793T>C, p.C265R, and TRPM4: c.2985_3012del, p.E996Gfs*118) were identified in five families with PED/SCD.

Five mutations were detected and the mutation spectrum of PED-associated genes was expanded, thus contributing to the clinical diagnosis of PED.

Get full research article at: https://www.scienceopen.com/hosted-document?doi=10.15212/CVIA.2024.0018

CVIA is available on the ScienceOpen platform and at Cardiovascular Innovations and Applications. Submissions may be made using ScholarOne Manuscripts. There are no author submission or article processing fees. Cardiovascular Innovations and Applications is indexed in the EMBASE, EBSCO, ESCI, OCLC, Primo Central (Ex Libris), Sherpa Romeo, NISC (National Information Services Corporation), DOAJ, Index Copernicus, Research4Life and Ulrich’s web Databases. Follow CVIA on Twitter @CVIA_Journal; or Facebook.

Yuxing Liu, Yiqiao Hu and Siyuan Zhang et al. Identification of Arrhythmia-Associated Gene Mutations in Chinese Patients with Primary Electrical Disorders or Sudden Cardiac Death. CVIA. 2024. Vol. 9(1). DOI: 10.15212/CVIA.2024.0018

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Exosomal circRNA-0008302 from Adipose-derived Stem Cells Protects Against Myocardial Injury

Announcing a new article publication for Cardiovascular Innovations and Applications journal. This study was aimed at investigating the expression and therapeutic potential of circRNAs from adipose-derived stem cell (ADSC) exosomes (ADSC-Exos) for cardiomyocyte injury.

Differentially expressed circRNAs were screened between ADSCs and ADSC-Exos with a circRNA microarray. A differential circRNA-0008302 siRNA plasmid was constructed to obtain ADSC-Exo and ADSC Exommu-circ-0008302 siRNA, respectively; subsequently, M6200 cells were divided into a control group, hydrogen peroxide (H2O2) induced group, H2O2 + ADSC-Exo group, and H2O2 + ADSC-Exommu-circ-0008302 siRNA group, and cell viability was evaluated. Apoptosis and intracellular reactive oxygen species were measured. The expression levels of miR-466i-5p were evaluated, and western blotting was performed to detect the expression of methionine sulfoxide reductase A (MsrA) protein.

Expression of circ-0008302 was significantly more elevated in the ADSC-Exo group than the ADSCs group. The treatment protected cardiomyocytes against H2O2-induced oxidative injury. Mechanistically, circ-0008302 downregulated miR-466i-5p levels, thus promoting expression of the miR-466i-5p target gene MsrA in cardiomyocytes.

ADSC-Exos play protective roles in mitigating myocardial injury by delivering circ-0008302 to cardiomyocytes; this circRNA targets miR-466i-5p and subsequently enhances the expression of MsrA.

Get full research article at: https://www.scienceopen.com/hosted-document?doi=10.15212/CVIA.2024.0020

CVIA is available on the ScienceOpen platform and at Cardiovascular Innovations and Applications. Submissions may be made using ScholarOne Manuscripts. There are no author submission or article processing fees. Cardiovascular Innovations and Applications is indexed in the EMBASE, EBSCO, ESCI, OCLC, Primo Central (Ex Libris), Sherpa Romeo, NISC (National Information Services Corporation), DOAJ, Index Copernicus, Research4Life and Ulrich’s web Databases. Follow CVIA on Twitter @CVIA_Journal; or Facebook.

Chengyan Hu, Shuai Wang and Yanling Wang et al. Exosomal circRNA-0008302 from Adipose-derived Stem Cells Protects Against Myocardial Injury. CVIA. 2024. Vol. 9(1). DOI: 10.15212/CVIA.2024.0020

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Reproducibility of a New Method to Assess Endothelial Function According to Peripheral Arterial Volume

Announcing a new article publication for Cardiovascular Innovations and Applications journal. The assessment of endothelial function is crucial for understanding cardiovascular disease progression. Reliable, convenient non-invasive methods are necessary for evaluating endothelial function. Peripheral arterial volume (PAV), measured at the fingertip, is a novel approach for which limited reproducibility data are available. Hence, this study was aimed at evaluating PAV measurement reproducibility in a clinical setting.

A total of 152 consecutive patients (average age 55.8 ± 12.3 years, 83 men) with chest pain were included in the study. PAV tests were conducted on the same day. The amplitude ratio before and after application of pressure, along with the reference ratio, were recorded to calculate the PAV. Medical baseline data for these patients were gathered from the hospital’s records.

On test days, the PAV results from repeated measurements were 1.15 ± 0.33 and 1.15 ± 0.31 (P = 0.99), indicating no significant difference between measurements in all participants. The mean difference was 0.00 ± 0.32, thus indicating no systematic errors, and the intraclass correlation coefficient was 0.66. Furthermore, age, sex, and BMI did not influence PAV reproducibility.

PAV measurement is feasible and exhibited excellent reproducibility among all enrolled patients. As a novel fingertip measurement, PAV has promise as a convenient and accurate method for assessing endothelial function in adults.

Read full article at https://www.scienceopen.com/hosted-document?doi=10.15212/CVIA.2023.0097

CVIA is available on the ScienceOpen platform and at Cardiovascular Innovations and Applications. Submissions may be made using ScholarOne Manuscripts. There are no author submission or article processing fees. Cardiovascular Innovations and Applications is indexed in the EMBASE, EBSCO, ESCI, OCLC, Primo Central (Ex Libris), Sherpa Romeo, NISC (National Information Services Corporation), DOAJ, Index Copernicus, Research4Life and Ulrich’s web Databases. Follow CVIA on Twitter @CVIA_Journal; or Facebook.

Yuanqiao Liu, Yanan Zhao and Zihan Li et al. Reproducibility of a New Method to Assess Endothelial Function According to Peripheral Arterial Volume. CVIA. 2024. Vol. 9(1). DOI: 10.15212/CVIA.2023.0097

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Four-Dimensional XStrain Echocardiographic Assessment of Left Ventricular Strain and Rotational Mechanics

Announcing a new article publication for Cardiovascular Innovations and Applications journal. Because of its excellent ability to non-invasively assess left ventricular (LV) systolic function, two-dimensional speckle tracking echocardiography (STE) is increasingly being used in echocardiographic laboratories worldwide. Two-dimensional STE is the most sought-after method to evaluate LV strain, rotation, twist and torsion. Two dimensional, three-dimensional and four-dimensional (4D) deformation estimation by STE has several intrinsic limitations. For better appraisal of LV contractile properties, a recently introduced updated version of 4D XStrain STE has been used to analyse the various complex multidimensional LV mechanics.

This novel technology is a reliable, economical and simple tool for estimating regional and global myocardial function. Furthermore, 4D XStrain STE can accurately quantify the 4D LV ejection-fraction, LV volume and sphericity index. However, this technology has not been extensively implemented, and its assessment remains limited primarily to research applications.

Get full research article at https://www.scienceopen.com/hosted-document?doi=10.15212/CVIA.2024.0001

CVIA is available on the ScienceOpen platform and at Cardiovascular Innovations and Applications. Submissions may be made using ScholarOne Manuscripts. There are no author submission or article processing fees. Cardiovascular Innovations and Applications is indexed in the EMBASE, EBSCO, ESCI, OCLC, Primo Central (Ex Libris), Sherpa Romeo, NISC (National Information Services Corporation), DOAJ, Index Copernicus, Research4Life and Ulrich’s web Databases. Follow CVIA on Twitter @CVIA_Journal; or Facebook.

Akhil Mehrotra, Anurag Mehrotra and Mohammed Shaban et al. Four-Dimensional XStrain Echocardiographic Assessment of Left Ventricular Strain and Rotational Mechanics: Technology, Clinical Applications, Advantages and Limitations. CVIA. 2024. Vol. 9(1). DOI: 10.15212/CVIA.2024.0001

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Transcatheter Aortic Valve Replacement in Patients ≥80 and <80 Years of Age with Aortic Valve Stenosis at Moderate Surgical Risk: Findings from an Observational Study in the Vietnamese Population

Announcing a new article publication for Cardiovascular Innovations and Applications journal. The increasing number of elderly patients with severe aortic valve stenosis undergoing transcatheter aortic valve replacement (TAVR) has prompted concerns regarding their clinical outcomes compared with the younger population. This study evaluated the outcomes of TAVR on the basis of age group (<80 or ≥80 years) among Vietnamese patients with severe aortic valve stenosis at intermediate surgical risk.

From March 2017 to December 2022, 21 patients ≥80 years of age and 69 patients <80 years of age underwent TAVI at a single center. Clinical characteristics, procedures, and outcomes at 30 days and 1 year were compared with the Valve Academic Research Consortium (VARC-2) criteria.

Patients ≥80 years of age had a higher prevalence of comorbidities but no significant differences in other clinical characteristics and procedures. No statistically significant differences were observed in procedural mortality (4.8% vs. 0.0%, P = 0.233), 30-day mortality (5.0% vs. 1.5%, P = 0.405), and 1-year mortality (11.8% vs. 3.7%, P = 0.241) between age groups. Major endpoints at specified time points also showed no significant differences.

TAVR in patients with aortic stenosis at intermediate surgical risk has similar clinical outcomes at 30 days and 1 year, according to VARC-2 criteria, with no statistically significant age-associated differences (≥80 vs. <80 years). However, further studies with larger patient populations are needed to better understand the effects of age on TAVI outcomes in patients with similar characteristics.

Get full cardio research paper at: https://www.scienceopen.com/hosted-document?doi=10.15212/CVIA.2024.0003

CVIA is available on the ScienceOpen platform and at Cardiovascular Innovations and Applications. Submissions may be made using ScholarOne Manuscripts. There are no author submission or article processing fees. Cardiovascular Innovations and Applications is indexed in the EMBASE, EBSCO, ESCI, OCLC, Primo Central (Ex Libris), Sherpa Romeo, NISC (National Information Services Corporation), DOAJ, Index Copernicus, Research4Life and Ulrich’s web Databases. Follow CVIA on Twitter @CVIA_Journal; or Facebook.

Khoa Quoc Nguyen, Duong Van Nguyen and Thuy Thi La et al. Transcatheter Aortic Valve Replacement in Patients ≥80 and <80 Years of Age with Aortic Valve Stenosis at Moderate Surgical Risk: Findings from an Observational Study in the Vietnamese Population. CVIA. 2024. Vol. 9(1). DOI: 10.15212/CVIA.2024.0003

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