Publications by authors named "Philippine Kies"

Article Synopsis
  • The study examines the use of fractional flow reserve (FFR), instantaneous wave-free ratio (iFR), and intravascular ultrasound (IVUS) to assess risk of myocardial ischemia in patients with anomalous aortic origin of the right coronary artery (AAORCA).
  • Eight adult patients with AAORCA were evaluated, revealing high-risk anatomy, but only one showed evidence of ischemia linked to atherosclerosis.
  • Over a follow-up period, most patients experienced symptom relief without adverse cardiac events, suggesting that non-invasive assessment tools could help guide treatment in AAORCA cases.
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Background: After the arterial switch operation (ASO) for transposition of the great arteries (TGA), neo-aortic dilatation and coronary arterial anomalies, especially an interarterial course and acute coronary artery take-off angle, are commonly found. Long-term follow-up data after ASO is scarce. Aim of this study was to determine the prevalence of neo-aortic dilatation and coronary abnormalities, with special emphasis on acute coronary take-off angle, in adult TGA-ASO patients.

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Background: The Fontan operation resulted in improved survival of patients with congenital heart defects not equipped to sustain biventricular circulation. Long-term complications are common, such as veno-venous collaterals (VVC). The aim of this study was to evaluate patient characteristics, percutaneous treatment strategy and (short-term) outcomes in adult Fontan patients with VVC, and review literature to date.

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Article Synopsis
  • Increasing survival rates in adults with congenital heart disease (ACHD) lead to complications like arrhythmias and heart failure; therefore, transcatheter valve interventions are emerging as a viable treatment option.
  • A study at the Center of Congenital Heart Disease Amsterdam-Leiden analyzed ACHD patients with severe atrioventricular (AV) valve regurgitation who underwent various transcatheter procedures from 2020 to 2022, noting improvements in condition without complications.
  • The findings suggest that while transcatheter valve repair can be safe and effective for complex ACHD patients, ongoing collaboration and individualized treatment strategies from a dedicated heart team are crucial for optimizing outcomes and future evaluations are needed to assess long-term results.
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Aims: Given the compelling evidence on the effectiveness of sodium-glucose cotransporter 2 inhibitors (SGLT2i) in the conventional heart failure population, SGLT2i deserve exploration in systemic right ventricular (sRV) failure. The initial experience with dapagliflozin in sRV failure patients is described, with a focus on tolerability and short-term effects on clinical outcomes.

Methods And Results: Ten patients (70% female, median age 50 years [46.

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Objective: Patients with a systemic right ventricle (sRV) in the context of transposition of the great arteries (TGA) after atrial switch or congenitally corrected TGA (ccTGA) are prone to sRV dysfunction. Pharmacological options for sRV failure remain poorly defined. This study aims to investigate the tolerability and effects of sacubitril/valsartan on sRV failure in adult patients with sRV.

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Article Synopsis
  • The study examined the presence of fibrosis and nerve innervation in hearts of individuals with transposition of the great arteries (TGA), utilizing 22 postmortem specimens across different treatment stages.
  • Newborn TGA hearts showed significantly higher levels of interstitial fibrosis compared to healthy hearts, indicating early structural changes due to altered oxygen saturation.
  • Following surgical interventions like Mustard/Senning and arterial switch operations, further increases in fibrosis were observed, particularly in the left ventricle, along with a decrease in nerve innervation, suggesting potential impacts on heart function post-surgery.
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Background: Since 2009, Dutch patients with a confirmed diagnosis/suspicion of systemic sclerosis (SSc) can be referred to the Leiden Combined Care in Systemic Sclerosis (CCISS) cohort. This study evaluated whether early recognition of SSc has improved over time and whether disease characteristics and survival has changed over time.

Methods: 643 SSc patients fulfilling American College of Rheumatology/European Alliance of Associations for Rheumatology 2013 SSc criteria were included and categorised into three groups based on cohort-entry year: (1) 2010-2013 (n=229 (36%)), (2) 2014-2017 (n=207 (32%)) and (3) 2018-2021 (n=207 (32%)).

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Baffle leaks are a frequently encountered and often overlooked complication after the atrial switch procedure for transposition of the great arteries. Baffle leaks are present in up to 50% of non-selected patients, and while they initially may not cause clear symptoms, they can complicate the hemodynamic course and influence the prognosis in this complex patient group. A shunt from the pulmonary venous atrium (PVA) to the systemic venous atrium (SVA) can lead to pulmonary overflow and subpulmonary left ventricular (LV) volume overload, while a shunt from the SVA to the PVA can result in (exercise-associated) cyanosis and paradoxical embolism.

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Article Synopsis
  • The study investigates high-risk characteristics of anomalous coronary arteries originating from the opposite sinus of Valsalva (ACAOS) using computed tomography angiography (CTA) to identify features linked to sudden cardiac death.
  • Researchers evaluated 25 patients to develop a new CTA measurement, called interluminal space (ILS), to distinguish an intramural segment of ACAOS.
  • Results showed that an ILS of less than 0.95 mm is a strong indicator of an intramural segment, achieving 100% sensitivity and 84% specificity for diagnosis.
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Article Synopsis
  • * An observational study followed 28 patients between 1989 and 2020, finding that 41% developed a need for chronic ventricular pacing after their surgery, with many experiencing complications within two years post-op.
  • * Patients with chronic pacing showed worse heart function as indicated by higher QRS duration and NT-pro-BNP levels, and 75% faced progressive heart failure outcomes, contrasting with a much lower percentage among those with
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Background: In this study we investigated current Dutch practice of low molecular weight heparin (LMWH) treatment in pregnant women with mechanical prosthetic heart valves (MPHV) in order to evaluate how management can be optimized.

Methods: Between December 2020 and February 2021, we conducted a survey among Dutch congenital cardiologists of tertiary centers in the Netherlands. We collected and analyzed written, unstructured, open questionnaires that were send to all 8 specialized pregnancy heart teams.

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In congenitally corrected transposition of the great arteries, the morphological right ventricle supports the systemic circulation. This chronic exposure to pressure overload ultimately leads to systemic right ventricular (sRV) dysfunction and heart failure. Pharmacological options for the treatment of sRV failure are poorly defined and no solid recommendations are made in the most recent guidelines.

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Article Synopsis
  • * The Fontan procedure connects the inferior vena cava to the pulmonary circulation, allowing passive blood flow without a functional second ventricle, which leads to long-term health challenges for patients.
  • * A multidisciplinary team approach is essential for monitoring and managing these patients post-surgery, in order to detect complications early and enhance their quality of life.
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The cardiac autonomic nervous system (cANS) regulates cardiac adaptation to different demands. The heart is an asymmetrical organ, and in the selection of adequate treatment of cardiac diseases it may be relevant to take into account that the cANS also has sidedness as well as regional differences in anatomical, functional, and molecular characteristics. The left and right ventricles respond differently to adrenergic stimulation.

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Article Synopsis
  • The study reviews the long-term coronary artery status of adults who underwent arterial switch operation (ASO) and assesses the need for routine coronary imaging based on complications observed.
  • Data from 993 adult patients showed low rates of myocardial ischemia (8.9%), coronary interventions (0.4%), and coronary-related deaths (0.4%), but indicated potential issues with cardiac nerve function post-ASO.
  • Current guidelines suggest that while routine screening for coronary pathologies might not be necessary, a baseline assessment is recommended for ASO adults, followed by personalized follow-ups.
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Anomalous aortic origin of a coronary artery (AAOCA) from the opposite sinus of Valsalva is a rare congenital abnormality. Computed tomography angiography (CTA) is primarily used as a diagnostic tool to evaluate the anatomy and identify potentially malignant AAOCA variants. Limited data is available on the role of CTA during postoperative follow-up.

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Inherent to its geometry, echocardiographic imaging of the systemic right ventricle (RV) is challenging. Therefore, echocardiographic assessment of systemic RV function may not always be feasible and/or reproducible in daily practice. Here, we aim to validate the usefulness of a comprehensive range of 32 echocardiographic measurements of systemic RV function in a longitudinal cohort by serial assessment of their correlations with cardiac magnetic resonance (CMR)-derived systemic RV ejection fraction (RVEF).

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Background: In response to an increased need for patient information in congenital heart disease, we previously developed an online, evidence-based information portal for patients with congenital aortic and pulmonary valve disease. To assess its effectiveness, a stepped-wedge cluster randomised trial was conducted.

Methods: Adult patients and caregivers of paediatric patients with congenital aortic and/or pulmonary valve disease and/or tetralogy of Fallot who visited the outpatient clinic at any of the four participating centres in the Netherlands between 1 March 2016-1 July 2017 were prospectively included.

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Background: Kommerell's diverticulum is a rare vascular anomaly characterized as an outpouch at the onset of an aberrant subclavian artery. In the variant of a right-sided aortic arch, the trachea and esophagus are enclosed dorsally by the arch. In the configuration of an aberrant left subclavian artery, a Kommerell's diverticulum and persisting ductus arteriosus or ductal ligament enclose the lateral side, forming a vascular ring which may result in (symptomatic) esophageal or tracheal compression.

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Background Patients with transposition of the great arteries corrected by an atrial switch operation experience major clinical events during adulthood, mainly heart failure (HF) and arrhythmias, but data on the emerging risks remain scarce. We assessed the risk for events during the clinical course in adulthood, and provided a novel risk score for event-free survival. Methods and Results This multicenter study observed 167 patients with transposition of the great arteries corrected by an atrial switch operation (61% Mustard procedure; age, 28 [interquartile range, 24-36] years) for 13 (interquartile range, 9-16) years, during which 16 (10%) patients died, 33 (20%) had HF events, defined as HF hospitalizations, heart transplantation, ventricular assist device implantation, or HF-related death, and 15 (9%) had symptomatic ventricular arrhythmias.

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Aims: Patients with a systemic right ventricle (sRV) in the context of transposition of the great arteries (TGA) after atrial switch or congenitally corrected TGA are prone to heart failure and arrhythmias. This study evaluated feasibility, patient adherence, and satisfaction of a smart technology-based care pathway for heart failure treatment optimization in these patients.

Methods And Results: Patients with symptomatic sRV failure eligible for initiation of sacubitril/valsartan were provided with four smartphone compatible devices (blood pressure monitor, weight scale, step counter, and rhythm monitor) and were managed according to a smart technology-based care pathway.

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Aims: The Leiden Convention coronary coding system structures the large variety of coronary anatomical patterns; isolated and in congenital heart disease. It is widely used by surgeons but not by cardiologists as the system uses a surgeons' cranial view. Since thoracic surgeons and cardiologists work closely together, a coronary coding system practical for both disciplines is mandatory.

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Objective: Pharmacological options for patients with a failing systemic right ventricle (RV) in the context of transposition of the great arteries (TGA) after atrial switch or congenitally corrected TGA (ccTGA) are not well defined. This study aims to investigate the feasibility and effects of sacubitril/valsartan treatment in a single-centre cohort of patients.

Methods: Data on all consecutive adult patients (n=20, mean age 46 years, 50% women) with a failing systemic RV in a biventricular circulation treated with sacubitril/valsartan in our centre are reported.

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