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Journal of Clinical Medicine Feb 2024Indication to perform surgical explantation of TAVR is becoming increasingly more frequent, due to the higher number of transcatheter procedures performed in patients... (Review)
Review
Indication to perform surgical explantation of TAVR is becoming increasingly more frequent, due to the higher number of transcatheter procedures performed in patients with longer life expectancy. We proposed to perform a systematic review and meta-analysis with metaregression to identify potential factors that can determine an increase in the high mortality and morbidity that characterize these surgical procedures. MEDLINE and Embase were searched for relevant studies. Twelve studies were eligible according to our inclusion criteria. TAVR explantation was confirmed as a procedure with high 30-day mortality (0.17; 95% CI, 0.14-0.21) and morbidity (stroke incidence 5%; 95% CI, 0.04-0.07; kidney injury incidence 16%; 95% CI, 0.11-0.24). The type of transcatheter valve implanted during the index procedure did not influence the outcomes after surgical explantation. The role of these high-risk operations is growing, and it will likely expand in the coming years. Specific tools for risk stratification are required.
PubMed: 38592075
DOI: 10.3390/jcm13051262 -
CJC Open Feb 2024High-grade atrioventricular block (HGAVB) is common after transcatheter aortic valve implantation (TAVI), often necessitating permanent pacemaker (PPM) implantation.... (Review)
Review
BACKGROUND
High-grade atrioventricular block (HGAVB) is common after transcatheter aortic valve implantation (TAVI), often necessitating permanent pacemaker (PPM) implantation. Delayed HGAVB has varying definitions but typically refers to onset 48 hours after TAVI or following discharge and may cause syncope and sudden cardiac death. This review estimates the incidence of delayed HGAVB and identifies limitations of current literature.
METHODS
A systematic review was performed of the following online databases: Medline, Cochrane, Web of Science, and Scopus. Studies that labelled the outcome of "delayed" or "late" atrioventricular block after TAVI were included; patients with previous PPM or aortic valve surgery were excluded. Initial search yielded 775 studies, which, after screening, was narrowed to 19 studies.
RESULTS
Nineteen studies with 14,898 patients were included. Mean age was 81.7 years, and 46.3% were male. Mean Society of Thoracic Surgeons (STS) score was 5.6%, and 31.3% of patients had known atrial fibrillation. The most common access site was transfemoral (84.8%), whereas balloon-expandable valves were used in 62.1%, self-expanding valves in 34.0%, and mechanically expanding valves in 3.9% of cases. The incidence of delayed HGAVB ranged from 1.7% to 14.6%, with significant methodologic heterogeneity noted among the included studies.
CONCLUSIONS
Delayed HGAVB is a common and potentially serious complication of TAVI, with similar risk factors to acute HGAVB. With a move toward an early discharge strategy post-TAVI, further prospective study of delayed HGAVB is warranted to improve understanding of predisposing factors, incidence, timing, and implications.
PubMed: 38585677
DOI: 10.1016/j.cjco.2023.10.003 -
Journal of the American Heart... Apr 2024It remains controversial whether prosthesis-patient mismatch (PPM) impacts long-term outcomes after surgical aortic valve replacement. We aimed to evaluate the... (Meta-Analysis)
Meta-Analysis
Impact of Prosthesis-Patient Mismatch After Surgical Aortic Valve Replacement: Systematic Review and Meta-Analysis of Reconstructed Time-to-Event Data of 122 989 Patients With 592 952 Patient-Years.
BACKGROUND
It remains controversial whether prosthesis-patient mismatch (PPM) impacts long-term outcomes after surgical aortic valve replacement. We aimed to evaluate the association of PPM with mortality, rehospitalizations, and aortic valve reinterventions.
METHODS AND RESULTS
We performed a systematic review with meta-analysis of reconstructed time-to-event data of studies published by March 2023 (according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses). Sixty-five studies met our eligibility criteria and included 122 989 patients (any PPM: 68 332 patients, 55.6%). At 25 years of follow-up, the survival rates were 11.8% and 20.6% in patients with and without any PPM, respectively (hazard ratio [HR], 1.16 [95% CI, 1.13-1.18], <0.001). At 20 years of follow-up, the survival rates were 19.5%, 12.1%, and 8.8% in patients with no, moderate, and severe PPM, respectively (moderate versus no PPM: HR, 1.09 [95% CI, 1.06-1.11], <0.001; severe versus no PPM: HR, 1.29 [95% CI, 1.24-1.35], <0.001). PPM was associated with higher risk of cardiac death, heart failure-related hospitalizations, and aortic valve reinterventions over time (<0.001). Statistically significant associations between PPM and worse survival were observed regardless of valve type (bioprosthetic versus mechanical valves), contemporary PPM definitions unadjusted and adjusted for body mass index, and PPM quantification method (in vitro, in vivo, Doppler echocardiography). Our meta-regression analysis revealed that populations with more women tend to have higher HRs for all-cause death associated with PPM.
CONCLUSIONS
The results of the present study suggest that any degree of PPM is associated with poorer long-term outcomes following surgical aortic valve replacement and provide support for implementation of preventive strategies to avoid PPM after surgical aortic valve replacement.
Topics: Humans; Female; Aortic Valve; Heart Valve Prosthesis Implantation; Aortic Valve Stenosis; Prosthesis Failure; Treatment Outcome; Heart Valve Prosthesis; Risk Factors; Prosthesis Design
PubMed: 38533939
DOI: 10.1161/JAHA.123.033176 -
Journal of Cardiothoracic Surgery Mar 2024The Cabrol procedure has undergone various modifications and developments since its invention. However, there is a notable gap in the literature regarding meta-analyses... (Meta-Analysis)
Meta-Analysis
BACKGROUND
The Cabrol procedure has undergone various modifications and developments since its invention. However, there is a notable gap in the literature regarding meta-analyses assessing it.
METHODS
A systematic review and meta-analysis was conducted to evaluate the effectiveness and long-term outcomes of the Cabrol procedure and its modifications. Pooling was conducted using random effects model. Outcome events were reported as linearized occurrence rates (percentage per patient-year) with 95% confidence intervals.
RESULTS
A total of 14 studies involving 833 patients (mean age: 50.8 years; 68.0% male) were included in this meta-analysis. The pooled all-cause early mortality was 9.0% (66 patients), and the combined rate of reoperation due to bleeding was 4.9% (17 patients). During the average 4.4-year follow-up (3,727.3 patient-years), the annual occurrence rates (linearized) for complications were as follows: 3.63% (2.79-4.73) for late mortality, 0.64% (0.35-1.16) for aortic root reoperation, 0.57% (0.25-1.31) for hemorrhage events, 0.66% (0.16-2.74) for thromboembolism, 0.60% (0.29-1.26) for endocarditis, 2.32% (1.04-5.16) for major valve-related adverse events, and 0.58% (0.34-1.00) for Cabrol-related coronary graft complications.
CONCLUSION
This systematic review provides evidence that the outcomes of the Cabrol procedure and its modifications are acceptable in terms of mortality, reoperation, anticoagulation, and valve-related complications, especially in Cabrol-related coronary graft complications. Notably, the majority of Cabrol procedures were performed in reoperations and complex cases. Furthermore, the design and anastomosis of the Dacron interposition graft for coronary reimplantation, considering natural anatomy and physiological hemodynamics, may promise future advancements in this field.
Topics: Humans; Male; Middle Aged; Female; Blood Vessel Prosthesis; Aortic Valve; Aorta; Heart Valve Prosthesis; Reoperation; Heart Diseases
PubMed: 38532449
DOI: 10.1186/s13019-024-02642-w -
The Canadian Journal of Cardiology Jun 2024The cardiovascular literature is limited by the lack of consensus on what are the best metrics for reporting social determinants of health (SDH) or social deprivation,... (Review)
Review
BACKGROUND
The cardiovascular literature is limited by the lack of consensus on what are the best metrics for reporting social determinants of health (SDH) or social deprivation, and if they should be reported as a single metric or separately by their domains.
METHODS
A systematic review of the literature on cardiovascular surgeries and procedures was conducted, identifying articles from January 1, 2010, to December 31, 2023, that studied the relationship between health outcomes after cardiovascular procedures or surgeries and SDH/social deprivation. The cardiovascular procedures/surgeries of interest were coronary and valve surgeries and procedures including coronary artery bypass grafting (CABG), percutaneous coronary intervention (PCI), valve replacement or repair, and transcatheter aortic valve intervention.
RESULTS
After screening 638 articles, we identified 47 papers that met our inclusion and exclusion criteria. The most common procedure evaluated was CABG and PCI; 46 of the studies focused on these 2 procedures. Almost all of the articles reported a different metric for SDH/social deprivation (41 different metrics); despite this, all of the metrics showed a consistent relationship with worse outcomes associated with greater degrees of SDH/deprivation. Only 9 reported on the individual domains of SDH/social deprivation; 3 studies showed a discordant relationship.
CONCLUSIONS
Although our systematic review identified numerous articles evaluating the relationship between SDH/social deprivation in cardiovascular disease, there was substantial heterogeneity in which metric was used and how it was reported. This reinforces the need for standards as to the best metrics for SDH/social deprivation as well as best practices for reporting.
Topics: Humans; Social Determinants of Health; Cardiovascular Diseases
PubMed: 38513932
DOI: 10.1016/j.cjca.2024.03.008 -
Cureus Feb 2024Marfan syndrome (MFS) is a progressive connective tissue disease with a broad range of clinical manifestations. We sought to establish the spectrum of structural... (Review)
Review
Marfan syndrome (MFS) is a progressive connective tissue disease with a broad range of clinical manifestations. We sought to establish the spectrum of structural valvular abnormalities as cardiovascular involvement has been identified as the most life-threatening aspect of the syndrome. This was a systematic review with a meta-analysis of studies indexed in Medline from the inception of the database to November 7, 2022. Using the random-effects model, separate Forest and Galbraith plots were generated for each valvular abnormality assessed. Heterogeneity was assessed using the statistics whilst funnel plots and Egger's test were used to assess for publication bias. From a total of 35 studies, a random-effects meta-analysis approximated the pooled summary estimates for the prevalence of cardiac valve abnormalities as mitral valve prolapse 65% (95% CI: 57%-73%); mitral valve regurgitation 40% (95% CI: 29%-51%); aortic valve regurgitation 40% (95% CI: 28%-53%); tricuspid valve prolapse 35% (95% CI: 15%-55%); and tricuspid valve regurgitation 43% (95% CI: 8%-78%). Only one study reported on the involvement of the pulmonary valve (pulmonary valve prolapse was estimated at 5.3% (95% CI: 1.9%-11.1%) in a cohort of 114 patients with MFS). We believe this study provides a description of the structural valvular disease spectrum and may help inform providers and patients in understanding the clinical history of MFS in the current treatment era with its increased life expectancy.
PubMed: 38487153
DOI: 10.7759/cureus.54141 -
EXCLI Journal 2024Valve surgery is common in cardiac procedures, with fasteners like COR-KNOT® and hand-tied knots used for knot securing. This study compares their efficacy in valve... (Review)
Review
Valve surgery is common in cardiac procedures, with fasteners like COR-KNOT® and hand-tied knots used for knot securing. This study compares their efficacy in valve surgery patients. We searched PubMed, SCOPUS, and Cochrane Central until August 2023. Outcomes assessed included aortic cross-clamp time (AXT), cardiopulmonary bypass (CPB) time, valvular regurgitation, mortality, prolonged ventilatory support, atrial fibrillation, postoperative left ventricular ejection fraction (LVEF), and renal failure. Subgroup analysis was performed for minimally invasive and open cardiac surgery. We used a random effects model for analysis. We included eight observational studies and two randomized controlled trials (RCTs) with a total of 1.411 participants. COR-KNOT significantly reduced AXT [MD -15.14, 95 % CI (-18.57, -11.70), P<0.00001] and CPB time [MD -12.38, 95 % CI (-14.99, -9.77), P<0.00001]. Valvular regurgitation [RR 0.40, 95 % CI (0.26, 0.61), P<0.0001] and need for prolonged ventilatory support [RR 0.29, 95 % CI (0.13, 0.65), P=0.003] were significantly lower with COR-KNOT. There were no significant differences in mortality [RR 0.39, 95 % CI (0.09, 1.69), P=0.44], atrial fibrillation [RR 1.03, 95 % CI (0.83, 1.27), P=0.81], LVEF changes [MD 0.05, 95 % CI (-1.37, 1.47), P = 0.95], or renal failure [RR 0.87, 95 % CI (0.16, 4.80), P = 0.87]. COR-KNOT devices reduce operative time and valvular regurgitation without increasing mortality or adverse outcomes. This supports their use in enhancing surgical efficiency and patient outcomes. However, ongoing discussions about suturing techniques, especially in minimally invasive procedures, highlight the need for further research and consensus among practitioners. See also the graphical abstract(Fig. 1).
PubMed: 38487081
DOI: 10.17179/excli2023-6885 -
Biomedical Engineering Online Feb 2024Aortic stenosis, hypertension, and left ventricular hypertrophy often coexist in the elderly, causing a detrimental mismatch in coupling between the heart and...
Aortic stenosis, hypertension, and left ventricular hypertrophy often coexist in the elderly, causing a detrimental mismatch in coupling between the heart and vasculature known as ventricular-vascular (VA) coupling. Impaired left VA coupling, a critical aspect of cardiovascular dysfunction in aging and disease, poses significant challenges for optimal cardiovascular performance. This systematic review aims to assess the impact of simulating and studying this coupling through computational models. By conducting a comprehensive analysis of 34 relevant articles obtained from esteemed databases such as Web of Science, Scopus, and PubMed until July 14, 2022, we explore various modeling techniques and simulation approaches employed to unravel the complex mechanisms underlying this impairment. Our review highlights the essential role of computational models in providing detailed insights beyond clinical observations, enabling a deeper understanding of the cardiovascular system. By elucidating the existing models of the heart (3D, 2D, and 0D), cardiac valves, and blood vessels (3D, 1D, and 0D), as well as discussing mechanical boundary conditions, model parameterization and validation, coupling approaches, computer resources and diverse applications, we establish a comprehensive overview of the field. The descriptions as well as the pros and cons on the choices of different dimensionality in heart, valve, and circulation are provided. Crucially, we emphasize the significance of evaluating heart-vessel interaction in pathological conditions and propose future research directions, such as the development of fully coupled personalized multidimensional models, integration of deep learning techniques, and comprehensive assessment of confounding effects on biomarkers.
Topics: Aged; Humans; Aging; Coronary Vessels; Heart; Heart Ventricles; Ventricular Function, Left
PubMed: 38388416
DOI: 10.1186/s12938-024-01206-2 -
Cureus Jan 2024This study aimed to investigate the safety and efficacy of bioprosthetic (BV) versus mechanical valves (MV) on long-term outcomes in 50- to 70-year-old aortic stenosis... (Review)
Review
This study aimed to investigate the safety and efficacy of bioprosthetic (BV) versus mechanical valves (MV) on long-term outcomes in 50- to 70-year-old aortic stenosis (AS) patients. A literature search for articles published until April 2023 yielded 13 eligible studies, with 15,320 patients divided into BV (n = 7,320) and MV (n = 8,000) cohorts. The review was registered prospectively with PROSPERO (CRD42021278777). MV demonstrated a favorable hazard ratio (HR: 1.12, 95% CI: 1.00-1.25, I= 60%) and higher survival rates at 5 (OR:1.13, 95% CI: 1.02-1.25, I= 42%) and 10 years (OR: 1.13, 95% CI: 1.05-1.23, I= 0%). At 15 years, stroke incidence was comparable (OR: 1.12, 95% CI: 0.98-1.27, I= 4%). BV showed lower bleeding events (OR: 1.7, 95% CI: 1.18-2.46, I= 88%), but MV replacement showed lower reoperation incidence (OR: 0.27, 95% CI: 0.18-0.42, I= 85%). MV appears favorable for the long-term approach in AS management compared to BV.
PubMed: 38371071
DOI: 10.7759/cureus.52550 -
Cardiology and Therapy Jun 2024Transcatheter aortic valve implantation (TAVI) plays a vital role in patients with symptomatic aortic stenosis. Despite the mortality benefit of TAVI, embolic stroke...
INTRODUCTION
Transcatheter aortic valve implantation (TAVI) plays a vital role in patients with symptomatic aortic stenosis. Despite the mortality benefit of TAVI, embolic stroke remains a feared complication. As a result, transcatheter cerebral embolic protection (TCEP) devices have been developed to reduce this risk. Given the ongoing debate of TCEP in TAVI, we performed a systematic review and meta-analysis of all randomized controlled trials to date to identify outcomes of periprocedural stroke using the Sentinel™ cerebral protection system (CPS).
METHODS
MEDLINE, Cochrane, and Scopus databases were utilized from inception until 12/2023. PRISMA criteria was utilized. Keywords included "cerebral embolic protection", "sentinel cerebral protection system", "transcatheter aortic valve implantation", and "transcatheter aortic valve replacement". Primary outcome was periprocedural stroke. Secondary outcomes included periprocedural disabling and non-disabling stroke, all-cause mortality, transient ischemic attack, delirium, acute kidney injury, vascular complications, bleeding, and pacemaker implantation. Risk ratios (RR) were measured via Mantel-Haenszel method with fixed analysis. Heterogeneity was assessed via chi-squared and Higgin's I test.
RESULTS
Four trials with 3528 patients were assessed. SAPIEN 3 was the most common bioprosthetic valve used. The average age was 79.4 years with 41.9% of the sample size being females. The most prevalent comorbidities were hypertension, diabetes mellitus, and coronary artery disease. There was no difference in periprocedural stroke in patients who underwent TAVI with the Sentinel™ CPS compared to no TCEP (RR 0.75, P = 0.12). Periprocedural disabling strokes were less likely in those who underwent TAVI with the Sentinel™ CPS compared to no TCEP (RR 0.41, P = 0.02) with a number needed to treat (NNT) of 123. All other outcomes did not reach statistical significance.
CONCLUSIONS
In our analysis, there was no difference between TAVI with the Sentinel™ CPS compared to TAVI without TCEP in regard to risk of periprocedural stroke; however, it was associated with a decreased risk of periprocedural disabling stroke.
PubMed: 38340292
DOI: 10.1007/s40119-024-00359-4