Astrid van Nieuwkerk

Ms. Astrid van Nieuwkerk

orcid

Research Focus & Metrics

Academic Career Length

7Years (2020-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 August 2023 in Stroke
Verified
Journal Article
Closed access
ANAstrid van Nieuwkerk
Astrid van Nieuwkerk
RDRonak Delewi
Ronak Delewi
FWFrank J. Wolters
Frank J. Wolters
MMMajon Muller
Majon Muller
MDMat Daemen
Mat Daemen
OCon behalf of the Heart-Brain Connection Consortium
on behalf of the Heart-Brain Connection Consortium
Cognitive impairment is common in patients with cardiovascular disease. One in 3 patients presenting at cardiology clinics have some degree of cognitive impairment, depending on the cardiac condition, comorbidities, and age. In up to half of these cases cognitive impairment may go unrecognized; however, it may affect self-management and treatment adherence. The high prevalence of cognitive impairment in patients with cardiac disease is likely due to shared risk factors, as well as direct consequences of cardiac dysfunction on the brain. Moreover, cardiac interventions may have beneficial as well as adverse effects on cognitive functioning. In this review, we describe prevalence and risk factors for cognitive impairment in patients with several common cardiac conditions: heart failure, coronary artery disease, and aortic valve stenosis. We discuss the potential effects of guideline-based treatments on cognition and identify open questions and unmet needs. Given the high prevalence of unrecognized cognitive impairment in cardiac patients, we recommend a stepwise approach to improve detection and management of cognitive impairment.

3 September 2024 in Journal of the American Heart Association
Verified
Journal Article
Open access
ANAstrid van Nieuwkerk
Astrid van Nieuwkerk
HAHugo M. Aarts
Hugo M. Aarts
KHKimberley I. Hemelrijk
Kimberley I. Hemelrijk
CCCristobal Urbano Carrillo
Cristobal Urbano Carrillo
DTDidier Tchétché
Didier Tchétché
RDRonak Delewi
Ronak Delewi
Background: Cerebrovascular events remain one of the most devastating complications of transcatheter aortic valve implantation (TAVI). Data from real‐world contemporary cohorts on longitudinal trends and outcomes remain limited. The aim of this study was to assess incidence, temporal trends, predictors, and outcomes of cerebrovascular events following transfemoral TAVI. Methods and Results: The CENTER2 (Cerebrovascular Events in Patients Undergoing Transcatheter Aortic Valve Implantation With Balloon‐Expandable Valves Versus Self‐Expandable Valves 2) study includes patients undergoing TAVI between 2007 and 2022. The database contains pooled patient‐level data from 10 clinical studies. A total of 24 305 patients underwent transfemoral TAVI (mean age 81.5±6.7 years, 56% women, median Society of Thoracic Surgeon Predicted Risk of Mortality 4.9% [3.1%–8.5%]). Of these patients, 2.2% (n=534) experienced stroke in the first 30 days after TAVI, and 40 (0.4%) had a transient ischemic attack. Stroke rates remained stable during the treatment period (2007–2010: 2.1%, 2011–2014: 2.5%, 2015–2018: 2.1%, 2019–2022: 2.1%; P trend =0.28). Moreover, 30‐day cerebrovascular event rates were similar across Society of Thoracic Surgeon Predicted Risk of Mortality risk categories: 2.1% in low‐risk, 2.6% in intermediate‐risk, and 2.5% in high‐risk patients ( P =0.21). Mortality was higher in patients with 30‐day stroke than without at 30 days (20.3% versus 4.7%; odds ratio, 5.1 [95% CI, 4.1–6.5]; P <0.001) and at 1 year (44.1% versus 15.0%; hazard ratio, 3.5 [95% CI, 3.0–4.2]; P <0.001). One‐year mortality rates for stroke did not decline over time (2007–2010: 46.9%, 2011–2014: 46.0%, 2015–2018: 43.0%, 2019–2022: 39.1%; P trend =0.32). At 1 year, 7.0% of patients undergoing TAVI had a stroke. Conclusions: In 24 305 patients who underwent transfemoral TAVI, 30‐day cerebrovascular event incidence remained ≈ 2.2% between 2007 and 2022. Thirty‐day stroke rates were similar throughout Society of Thoracic Surgeon Predicted Risk of Mortality risk categories. Mortality rates after stroke remain high. Registration: URL: https://www.clinicaltrials.gov ; Unique identifier: NCT03588247.

4 September 2021 in Journal of Clinical Medicine
Verified
Journal Article
Open access
PDF file
ANAstrid van Nieuwkerk
Astrid van Nieuwkerk
RSRaquel B Santos
Raquel B Santos
LALeire Andraka
Leire Andraka
DTDidier Tchetche
Didier Tchetche
FSFabio Sandoli
Fabio Sandoli
RDRonak Delewi
Ronak Delewi
Background: Both balloon-expandable (BE) and self-expandable (SE) valves for transcatheter aortic valve implantation (TAVI) are broadly used in clinical practice. However, adequately powered randomized controlled trials comparing these two valve designs are lacking. Methods: The CENTER-study included 12,381 patients undergoing transfemoral TAVI. Patients undergoing TAVI with a BE-valve (n = 4096) were compared to patients undergoing TAVI with an SE-valve (n = 4096) after propensity score matching. Clinical outcomes including one-year mortality and stroke rates were assessed. Results: In the matched population of n = 5410 patients, the mean age was 81 ± 3 years, 60% was female, and the STS-PROM predicted 30-day mortality was 6.2% (IQR 4.0–12.4). One-year mortality was not different between patients treated with BE- or SE-valves (BE: 16.4% vs. SE: 17.0%, Relative Risk 1.04, 95%CI 0.02–1.21, p = 0.57). One-year stroke rates were also comparable (BE: 4.9% vs. SE: 5.3%, RR 1.09, 95%CI 0.86–1.37, p = 0.48). Conclusion: This study suggests that one-year mortality and stroke rates were comparable in patients with severe aortic valve stenosis undergoing TAVI with either BE or SE-valves.

9 September 2023 in International Journal of Cardiology
Verified
Journal Article
Open access
MWMarleen van Wely
Marleen van Wely
ANAstrid van Nieuwkerk
Astrid van Nieuwkerk
MRMaxim J.P. Rooijakkers
Maxim J.P. Rooijakkers
KWKees van der Wulp
Kees van der Wulp
HGHelmut Gehlmann
Helmut Gehlmann
NRNiels Van Royen
Niels Van Royen
Transfemoral (TF) access is default in transcatheter aortic valve implantation (TAVI). Transaxillary (TAx) access has been shown to be a safe alternative in case of prohibitive iliofemoral anatomy, but whether TAx as preferred access has similar safety and efficacy as TF access is unknown. The aim of this study was to compare outcomes between patients treated with self-expanding devices using TF or TAx route as preferred access in TAVI. A single center cohort of 354 patients treated using TAx as preferred access and a multi-center cohort of 5980 patients treated using TF access were compared. Propensity score matching was used to reduce selection bias and potential confounding. After propensity score matching, each group consisted of 322 patients. Clinical outcomes according to VARC-2 were compared using chi-square test. In 6334 patients undergoing TAVI, mean age was 81.4 ± 7.0 years, 57% was female and median logistic EuroSCORE was 14.7% (IQR 9.5-22.6). In the matched population (age 79.3 ± 7.0, 50% female, logistic EuroSCORE 13.4%, IQR 9.0-21.5), primary outcomes 30-day and one-year all-cause mortality were similar between Tax and TF groups (30 days: 5% versus 6%, p = 0.90; 1 year: 20% versus 16%, p = 0.17). Myocardial infarction was more frequent in patients undergoing Tax TAVI compared with TF (4% versus 1%, p = 0.05), but new permanent pacemakers were less frequently implanted (12% versus 21%, p = 0.001). TAx as preferred access is feasible and safe with outcomes that are comparable to TF access.

29 February 2020 in Aging
Verified
Journal Article
Open access
ANAstrid van Nieuwkerk
Astrid van Nieuwkerk
JBJan Baan
Jan Baan
RDRonak Delewi
Ronak Delewi

1 November 2020 in European Heart Journal
Verified
Journal Article
Closed access
PDF file
ANAstrid van Nieuwkerk
Astrid van Nieuwkerk
RSR.B Santos
R.B Santos
ARAnder Regueiro
Ander Regueiro
DTDidier Tchetche
Didier Tchetche
MBMarco Barbanti
Marco Barbanti
RDRonak Delewi
Ronak Delewi
Transcatheter aortic valve implantation (TAVI) is a well-established treatment for symptomatic aortic valve stenosis. The majority of patients treated are overweight or obese. Obesity has traditionally been linked to reduced survival and worse cardiovascular outcomes. However, an “obesity paradox” has been described in some diseases, with improved survival of obese patients after invasive and surgical procedures. The CENTER-collaboration included data from 10 registries or clinical trials of patients undergoing transfemoral TAVI from 2007 to 2018. Patients were divided in four groups according to body mass index (BMI): underweight: BMI <18.5 kg/m2, normal weight: BMI 18.5 to 24.9 kg/m2, overweight: BMI 25 to 29.9 kg/m2, and obese: BMI ≥30 kg/m2. The primary endpoints of this analysis were differences in 30-day all-cause mortality and stroke after TAVI. Of the 12,381 patients analysed, 2% (n=205) were underweight, 29% (n=3552) had normal weight, 44% (n=5460) were overweight and 25% (n=3140) obese. Older patients had lower BMI (median of 84 years for underweight and 81 years for obese patients, p<0.001). Cardiovascular risk factors such as hypertension, diabetes mellitus and dyslipidaemia increased progressively with increase of BMI category. As to clinical outcomes, there were no differences for stroke rates across BMI groups. In-hospital mortality was highest in patients who were underweight, namely 8.4%, compared to normal weight, overweight and obese patients (6.2%, 4.3% and 4.6% respectively, p<0.001) as was 30-day mortality (9.8% compared to 6.9%, 5.3% and 5.2% respectively, p=0.001). On the other hand, extremely obese patients (BMI ≥40.0 kg/m2) also had worse prognosis, with a 30-day mortality of 7.6%. In this global analysis of more than 12 000 patients undergoing transfemoral TAVI, overweight and obese patients had better in-hospital and 30-day survival than normal weight patients, confirming the obesity paradox. There was an inverted J-shaped relationship of body mass index with prognosis, with higher mortality rates for underweight and extremely obese patients. Mortality and stroke per BMI category Mortality and stroke per BMI category Type of funding source: Foundation. Main funding source(s): The Dutch Heart Foundation; Netherlands Organisation for Health Research and Development