Oliver Kretschmar
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View article: Cerebral hemodynamics in early adolescents with congenital heart disease after infant open-heart surgery
Cerebral hemodynamics in early adolescents with congenital heart disease after infant open-heart surgery Open
Fetuses and infants with congenital heart disease (CHD) show altered cerebral hemodynamics. However, little is known about whether those alterations persist throughout childhood. We assessed cerebral hemodynamics in 34 adolescents with CHD…
View article: Cortical surface area drives volumetric and cognitive deficits in complex congenital heart disease
Cortical surface area drives volumetric and cognitive deficits in complex congenital heart disease Open
Individuals with complex congenital heart disease (CHD) are at increased risk for cognitive impairments linked to altered brain structure, including reduced cortical volume. Cortical volume is determined by two distinct morphometric measur…
View article: Direct percutaneous access of the thoracic duct in a neonate as curative treatment of a high-output life-threatening chylothorax due to thrombotic occlusion of the thoracic duct–venous junction
Direct percutaneous access of the thoracic duct in a neonate as curative treatment of a high-output life-threatening chylothorax due to thrombotic occlusion of the thoracic duct–venous junction Open
A life-threatening chylothorax developed in a female neonate after corrective surgery of d-transposition of the great arteries complicated by extensive postoperative thrombosis of the superior vena cava distribution, including at the thora…
View article: The implementation of EMI-Heart, a family-tailored early motor intervention in infants with complex congenital heart disease, in practice: a feasibility RCT
The implementation of EMI-Heart, a family-tailored early motor intervention in infants with complex congenital heart disease, in practice: a feasibility RCT Open
View article: Heart rate variability and cognitive functions in adolescents with complex congenital heart disease
Heart rate variability and cognitive functions in adolescents with complex congenital heart disease Open
View article: Stress Markers, Executive Functioning, and Resilience Among Early Adolescents With Complex Congenital Heart Disease
Stress Markers, Executive Functioning, and Resilience Among Early Adolescents With Complex Congenital Heart Disease Open
Importance Infants with complex congenital heart disease (cCHD) may experience prolonged and severe stress when undergoing open heart surgery. However, little is known about long-term stress and its role in neurodevelopmental impairments i…
View article: Possible effects of left pulmonary artery stenting in single ventricle patients on bronchial area, lung volume and lung function
Possible effects of left pulmonary artery stenting in single ventricle patients on bronchial area, lung volume and lung function Open
Background Left pulmonary artery (LPA) stenting is often required in single ventricle (SV) patients. Due to their close anatomical relationship an LPA stent could potentially compress the left main bronchus (LMB). We assessed the impact of…
View article: The cumulative impact of clinical risk on brain networks and associations with executive function impairments in adolescents with congenital heart disease
The cumulative impact of clinical risk on brain networks and associations with executive function impairments in adolescents with congenital heart disease Open
Congenital heart disease (CHD) is known to negatively affect brain development. Individual clinical factors have been identified to contribute to this detrimental effect, however, the cumulative effect of these factors on brain development…
View article: Pulmonary hemodynamics before and after pediatric heart transplantation
Pulmonary hemodynamics before and after pediatric heart transplantation Open
Background Pulmonary hypertension (PH) may limit the outcome of pediatric heart transplantation (pHTx). We evaluated pulmonary hemodynamics in children undergoing pHTx. Methods Cross‐sectional, single‐center, observational study analyzing …
View article: Risk Factors and Outcomes of Children with Congenital Heart Disease on Extracorporeal Membrane Oxygenation—A Ten-Year Single-Center Report
Risk Factors and Outcomes of Children with Congenital Heart Disease on Extracorporeal Membrane Oxygenation—A Ten-Year Single-Center Report Open
For children born with congenital heart defects (CHDs), extracorporeal life support may be necessary. This retrospective single-center study aimed to investigate the outcomes of children with CHDs on extracorporeal membrane oxygenation (EC…
View article: Risk Factors and Outcome of Pulmonary Artery Stenting After Bidirectional Cavopulmonary Connection (BDCPC) in Single Ventricle Circulation
Risk Factors and Outcome of Pulmonary Artery Stenting After Bidirectional Cavopulmonary Connection (BDCPC) in Single Ventricle Circulation Open
View article: Risk Factors and Outcomes of Children with Congenital Heart Disease on Extracorporeal Membrane Oxygenation, a 10-Year Single-Center Report
Risk Factors and Outcomes of Children with Congenital Heart Disease on Extracorporeal Membrane Oxygenation, a 10-Year Single-Center Report Open
For children born with congenital heart defects (CHD), extracorporeal life support may be necessary. This study aimed to investigate the outcomes of children on extracorporeal membrane oxygenation (ECMO), focusing on various risk factors, …
View article: Stenting of native right ventricular outflow tract obstructions in symptomatic infants: histological work-up of explanted specimen
Stenting of native right ventricular outflow tract obstructions in symptomatic infants: histological work-up of explanted specimen Open
Background: Stenting of stenotic right ventricular outflow tract is a palliative measure for severely impaired small babies with Tetralogy of Fallot or similar pathologies. Little is known about the histopathological fate of the stents in …
View article: Exceptional case of aortic atresia associated with atypical double aortic arch
Exceptional case of aortic atresia associated with atypical double aortic arch Open
We present the unique case of atretic aortic valve associated with hypoplastic ascending aorta and double aortic arch of unusual configuration supplying retrograde blood flow to the coronary arteries.
View article: Transcatheter Closure of Atrial Septal Defect with Carag Bioresorbable Septal Occluder™: First-in-Child Experience with 12-MonthFollow-Up
Transcatheter Closure of Atrial Septal Defect with Carag Bioresorbable Septal Occluder™: First-in-Child Experience with 12-MonthFollow-Up Open
Background. Nowadays, transcatheter device closure of an atrial septal defect (ASD) is a standard approach in children. Potential early and long-term side effects or complications related to the metal framework of the devices are a known i…
View article: A family-tailored early motor intervention (EMI-Heart) for infants with complex congenital heart disease: study protocol for a feasibility RCT
A family-tailored early motor intervention (EMI-Heart) for infants with complex congenital heart disease: study protocol for a feasibility RCT Open
Background Children with congenital heart disease (CHD) undergoing open-heart surgery are at risk for developmental impairments with motor delay manifesting first and contributing to parental concerns. Only a few interventional studies aim…
View article: Favourable Short- to Mid-Term Outcome after PDA-Stenting in Duct-Dependent Pulmonary Circulation
Favourable Short- to Mid-Term Outcome after PDA-Stenting in Duct-Dependent Pulmonary Circulation Open
Background. Stenting of patent ductus arteriosus (PDA) is a minimally invasive catheter-based temporary palliative procedure that is an alternative to a surgical shunt in neonates with duct-dependent pulmonary perfusion. Methods. An observ…
View article: Bridging with Veno-Arterial Extracorporeal Membrane Oxygenation in Children: A 10-Year Single-Center Experience
Bridging with Veno-Arterial Extracorporeal Membrane Oxygenation in Children: A 10-Year Single-Center Experience Open
Veno-arterial extracorporeal membrane oxygenation (V-A ECMO) is frequently used in children with and without congenital heart disease (CHD). This study, of a single-center and retrospective design, evaluated the use and timing of V-A ECMO …
View article: Findings and Outcome of Transcatheter Right Ventricular Endomyocardial Biopsy and Hemodynamic Assessment in Children with Suspected Myocarditis or Cardiomyopathy
Findings and Outcome of Transcatheter Right Ventricular Endomyocardial Biopsy and Hemodynamic Assessment in Children with Suspected Myocarditis or Cardiomyopathy Open
Objective: The study objective is assessing findings and outcome in children with suspected cardiomyopathy (CMP) or myocarditis undergoing cardiac catheterization with transcatheter right ventricular endomyocardial biopsy (RV-EMB). Methods…
View article: Early Cardiac Catheterizations within 30 Days Post Congenital Heart Surgery in Children
Early Cardiac Catheterizations within 30 Days Post Congenital Heart Surgery in Children Open
Background: This study set out to assess the indications, feasibility, safety, and outcome of early cardiac catheterizations (CC) within 30 days after congenital heart surgery (CHS) in children. Methods and Results: This is a retrospective…
View article: Similarities and Differences in the Neurodevelopmental Outcome of Children with Congenital Heart Disease and Children Born Very Preterm at School Entry
Similarities and Differences in the Neurodevelopmental Outcome of Children with Congenital Heart Disease and Children Born Very Preterm at School Entry Open
View article: An Extremely Rare Congenital Muscle Bundle Crossing the Right Atrial Cavity
An Extremely Rare Congenital Muscle Bundle Crossing the Right Atrial Cavity Open
View article: Immediate and Long-Term Results of Transcatheter Closure of Patent Ductus Arteriosus—Comparison of Two Decades before and after Change in Antibiotic Infective Endocarditis Prophylaxis Guidelines
Immediate and Long-Term Results of Transcatheter Closure of Patent Ductus Arteriosus—Comparison of Two Decades before and after Change in Antibiotic Infective Endocarditis Prophylaxis Guidelines Open
To determine immediate and long-term follow-up of transcatheter closure of patent ductus arteriosus (PDA) in children. Background: National antibiotic prophylaxis (AP) guideline for infective endocarditis changed after 2009, the effect on …
View article: Medium-Term Results of Balloon Valvuloplasty of Native Pulmonary Valve Stenosis with and without Supravalvular Obstruction in Childhood
Medium-Term Results of Balloon Valvuloplasty of Native Pulmonary Valve Stenosis with and without Supravalvular Obstruction in Childhood Open
Objectives: Factors influencing results of balloon valvuloplasty (BVP) of pulmonary valve stenosis (PS) in children are investigated. Background: BVP has become the standard of care for PS, medium-term results are not uniform and depend on…
View article: Mental sequelae of the Covid-19 pandemic: Well-being one year into the crisis in children with and without complex medical histories and their parents
Mental sequelae of the Covid-19 pandemic: Well-being one year into the crisis in children with and without complex medical histories and their parents Open
Objectives To understand the long-term mental sequelae for families over the course of the COVID-19 pandemic, the well-being of children with and without complex medical histories and their parents was investigated longitudinally. Methods …
View article: Congenital heart disease in school-aged children: Cognition, education, and participation in leisure activities
Congenital heart disease in school-aged children: Cognition, education, and participation in leisure activities Open
View article: Reimplantation of the left coronary artery with aortic intramural course in an ALCAPA patient
Reimplantation of the left coronary artery with aortic intramural course in an ALCAPA patient Open
We present a case of an anomalous origin of the left coronary artery from the pulmonary artery, with a proximal intramural course in the aortic wall. We describe the technique of its reimplantation at the site of the transverse aortotomy, …
View article: Comparing acute and long-term outcome of critical neonatal native aortic coarctation treated by combined stent-surgery approach or by primary surgery
Comparing acute and long-term outcome of critical neonatal native aortic coarctation treated by combined stent-surgery approach or by primary surgery Open
View article: Somatic growth in children with congenital heart disease at 10 years of age: Risk factors and longitudinal growth
Somatic growth in children with congenital heart disease at 10 years of age: Risk factors and longitudinal growth Open
Despite partial catch-up, somatic growth remains impaired in children with CHD with weight and HC below the norm at 10 years. The only cardiac factor associated with impaired longitudinal growth was duration of hospital stay. Furthermore, …
View article: Melody valve to replace the mitral valve in small children
Melody valve to replace the mitral valve in small children Open
Objective: Infants requiring mitral valve replacement have few viable options. Recently, stented bovine jugular vein graft (Melody) has been surgically implanted in such cases. Herein, we report our experience, elaborating on evolution of …