Publications
Below you can find a list of our published research.
Below you can find a list of our published research.
253 results
Cited 29 times since 2015 (3.4 per year) source: EuropePMC
International journal of cardiology, Volume 202, 26 4 2015, Pages 784-795 Atrioventricular septal defect: From embryonic development to long-term follow-up. Calkoen EE, Hazekamp MG, Blom NA, Elders BB, Gittenberger-de Groot AC, Haak MC, Bartelings MM, Roest AA, Jongbloed MR
Atrioventricular septal defect (AVSD) covers a spectrum of heart anomalies with a common atrioventricular connection and has an incidence of 4-5.3 per 10.000 live births. About half of the AVSDs occur in patient with Down syndrome. This review provides a bench to bedside overview of AVSD. Developmental aspects, nomenclature, anatomy, and classification of AVSD are discussed. Furthermore an overview of genetic and maternal risk factors for AVSD is provided, and available literature on (fetal) dia... Abstract
Cited 13 times since 2015 (1.5 per year) source: EuropePMC
The Journal of thoracic and cardiovascular surgery, Volume 150, Issue 5, 18 3 2015, Pages 1233-40.e1 Altered left ventricular vortex ring formation by 4-dimensional flow magnetic resonance imaging after repair of atrioventricular septal defects. Calkoen EE, Elbaz MS, Westenberg JJ, Kroft LJ, Hazekamp MG, Roest AA, van der Geest RJ
Objectives: During normal left ventricular (LV) filling, a vortex ring structure is formed distal to the left atrioventricular valve (LAVV). Vortex structures contribute to efficient flow organization. We aimed to investigate whether LAVV abnormality in patients with a corrected atrioventricular septal defect (AVSD) has an impact on vortex ring formation. Methods: Whole-heart 4D flow MRI was performed in 32 patients (age: 26 ± 12 years), and 30 healthy subjects (age: 25 ± 14 years). Vortex ring... Abstract
Cited 6 times since 2015 (0.7 per year) source: EuropePMC
BMC cardiovascular disorders, Volume 15, 14 2 2015, Pages 68 Cathether-based interventional strategies for cor triatriatum in the adult - feasibility study through a hybrid approach. Li WW, Koolbergen DR, Bouma BJ, Hazekamp MG, de Mol BA, de Winter RJ
Background: Cor triatriatum is a rare congenital cardiac abnormality, consisting of an obstructing membrane between the pulmonary veins and the mitral valve in varying patterns. The entitiy can mimick the pathophysiology of mitral stenosis, necessitating surgical resection. Occasionally, percutaneous balloon dilatation of the membrane has been successfully performed. Case presentation: We report two cases with cor triatriatum where intraoperative balloon dilatation of the membrane was attempted... Abstract
Cited 9 times since 2015 (1 per year) source: EuropePMC
Heart (British Cardiac Society), Volume 101, Issue 21, 14 2 2015, Pages 1717-1723 Individualised prediction of pulmonary homograft durability in tetralogy of Fallot. Bokma JP, Winter MM, Oosterhof T, Vliegen HW, van Dijk AP, Hazekamp MG, Koolbergen DR, Groenink M, Mulder BJ, Bouma BJ
Background: In patients with repaired tetralogy of Fallot (rTOF), multiple reoperations or percutaneous interventions after pulmonary valve replacement (PVR) may be necessary due to limited homograft durability. However, data to guide individualised prediction of homograft durability remain scarce. The aim of this study was to provide risk models for RV to pulmonary artery homograft durability. Methods: This retrospective multicentre study included consecutive patients with rTOF who had undergon... Abstract
Cited 6 times since 2015 (0.7 per year) source: EuropePMC
European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery, Volume 49, Issue 2, 7 1 2015, Pages 538-44; discussion 544-5 A single-centre 37-year experience with reoperation after primary repair of atrioventricular septal defect. Sojak V, Kooij M, Yazdanbakhsh A, Koolbergen DR, Bruggemans EF, Hazekamp MG
Objectives: To evaluate our experience with patients reoperated after primary repair of atrioventricular septal defect (AVSD) and identify predictors of poor outcome. Methods: Between 1976 and 2014, 69 patients were reoperated after primary repair of partial (n = 28), intermediate (n = 15) or complete (n = 26) AVSD. Results: Median age at first reoperation was 62.4 (range, 1.6-845) months, median interval to first reoperation was 22.3 (range, 0.2-598) months. Main indications for first reoperati... Abstract
Cited 1 times since 2015 (0.1 per year) source: EuropePMC
World journal for pediatric & congenital heart surgery, Volume 6, Issue 2, 1 1 2015, Pages 298-300 Isolated right subclavian artery with interrupted aortic arch, ventricular septal defect, and left ventricular outflow tract obstruction. Te Hoven AS, Clur SA, Andreu JP, Hazekamp MG
We present two cases of isolated right subclavian artery from the right pulmonary artery (PA) associated with interrupted aortic arch, ventricular septal defect, left ventricular outflow tract obstruction, and 22q11 microdeletion. Both patients were successfully managed with bilateral PA banding initially followed by a modified Yasui operation. Isolation of the subclavian artery is rare but should always be taken into account, especially when bilateral PA banding is considered. The banding must... Abstract
Cited 22 times since 2015 (2.4 per year) source: EuropePMC
Heart (British Cardiac Society), Volume 101, Issue 10, 31 5 2015, Pages 794-799 Severe tricuspid regurgitation is predictive for adverse events in tetralogy of Fallot. Bokma JP, Winter MM, Oosterhof T, Vliegen HW, van Dijk AP, Hazekamp MG, Koolbergen DR, Groenink M, Mulder BJ, Bouma BJ
Objective: Patients with surgically repaired tetralogy of Fallot (rTOF) may develop functional tricuspid regurgitation (TR) due to annulus dilation. Guidelines suggest pulmonary valve replacement (PVR) in patients with rTOF with progressive TR, but data on clinical outcomes are lacking. Our objective was to determine whether TR was predictive for adverse events after PVR. Methods: In this retrospective, multicenter cohort study, patients with rTOF who had undergone PVR after preoperative echocar... Abstract
Cited 27 times since 2015 (2.9 per year) source: EuropePMC
Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance, Volume 17, 19 3 2015, Pages 18 Characterization and quantification of dynamic eccentric regurgitation of the left atrioventricular valve after atrioventricular septal defect correction with 4D Flow cardiovascular magnetic resonance and retrospective valve tracking. Calkoen EE, Westenberg JJ, Kroft LJ, Blom NA, Hazekamp MG, Rijlaarsdam ME, Jongbloed MR, de Roos A, Roest AA
Background: To characterize and directly quantify regurgitant jets of left atrioventricular valve (LAVV) in patients with corrected atrioventricular septal defect (AVSD) by four-dimensional (4D)Flow Cardiovascular Magnetic Resonance (CMR), streamline visualization and retrospective valve tracking. Methods: Medical ethical committee approval and informed consent from all patients or their parents were obtained. In 32 corrected AVSD patients (age 26 ± 12 years), echocardiography and whole-heart 4D... Abstract
Cited 7 times since 2015 (0.8 per year) source: EuropePMC
European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery, Volume 48, Issue 5, 1 1 2015, Pages 724-30; discussion 730-1 Surgical treatment of aberrant aortic origin of coronary arteries. Kooij M, Vliegen HW, de Graaf MA, Hazekamp MG
Objectives: Aberrant origin of the coronary arteries is rare but can be life threatening. It is an important cause of sudden death in athletes and other young adults, and may be treated surgically. Consensus exists that interarterial left coronary artery (LCA) should be surgically repaired. For interarterial right coronary artery (RCA), the discussion remains open. The purpose of this study was to analyse our surgical experience. Methods: From 2001 until 2014, 31 patients were operated for inter... Abstract
Cited 15 times since 2015 (1.6 per year) source: EuropePMC
European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery, Volume 48, Issue 6, 18 3 2015, Pages 833-40; discussion 840-1 Comprehensive rhythm evaluation in a large contemporary Fontan population. Bossers SS, Duppen N, Kapusta L, Maan AC, Duim AR, Bogers AJ, Hazekamp MG, van Iperen G, Helbing WA, Blom NA
Objectives: Rhythm disturbances are an important cause of morbidity in Fontan patients. Currently, the total cavopulmonary connection is performed by using the intra-atrial lateral tunnel (ILT) ('baffle ILT' or 'prosthetic ILT'), or the extracardiac conduit (ECC). The aim of the study was to evaluate rhythm abnormalities and compare the surgical techniques in a contemporary cohort. Methods: In a cross-sectional multicentre study, 115 patients (age 12.5 ± 3.1 years) underwent... Abstract
Cited 6 times since 2015 (0.6 per year) source: EuropePMC
Interactive cardiovascular and thoracic surgery, Volume 20, Issue 4, 6 1 2015, Pages 499-503 Hybrid branch pulmonary artery stent placement in adults with congenital heart disease. Lynch W, Boekholdt SM, Hazekamp MG, de Winter RJ, Koolbergen DR
Objectives: Valuable treatment modalities for branch pulmonary artery (BPA) stenoses are surgical patch angioplasty, percutaneous BPA stenting and hybrid stent placement. The purpose of this study was to report our institutional experience with hybrid stent placement to relieve BPA stenoses. Methods: Between August 2007 and May 2014, 7 adults (5 females) with congenital heart disease (CHD) had elective intraoperative BPA stent placement. All 7 patients had undergone previous surgery [6 tetralogy... Abstract
Cited 3 times since 2014 (0.3 per year) source: EuropePMC
The Journal of thoracic and cardiovascular surgery, Volume 149, Issue 4, 18 3 2014, Pages 968 Long-term follow-up after the arterial switch operation: Not as perfect as we would have hoped? Hazekamp MG
Cited 22 times since 2014 (2.3 per year) source: EuropePMC
Circulation. Arrhythmia and electrophysiology, Volume 7, Issue 5, 23 4 2014, Pages 889-897 Left-sided ablation of ventricular tachycardia in adults with repaired tetralogy of Fallot: a case series. Kapel GF, Reichlin T, Wijnmaalen AP, Tedrow UB, Piers SR, Schalij MJ, Hazekamp MG, Jongbloed MR, Stevenson WG, Zeppenfeld K
Background: Radiofrequency catheter ablation (RFCA) of ventricular tachycardia (VT) in repaired Tetralogy of Fallot focuses on isthmuses in the right ventricle but may be hampered by hypertrophied myocardium or prosthetic material. These patients may benefit from ablation at the left side of the ventricular septum. Methods and results: Records from 28 consecutive repaired Tetralogy of Fallot patients from 2 centers who underwent VT ablation were reviewed. Ablation targeted anatomic isthmuses con... Abstract
Cited 22 times since 2014 (2.3 per year) source: EuropePMC
Journal of magnetic resonance imaging : JMRI, Volume 41, Issue 6, 20 3 2014, Pages 1512-1520 Characterization and improved quantification of left ventricular inflow using streamline visualization with 4DFlow MRI in healthy controls and patients after atrioventricular septal defect correction. Calkoen EE, Roest AA, Kroft LJ, van der Geest RJ, Jongbloed MR, van den Boogaard PJ, Blom NA, Hazekamp MG, de Roos A, Westenberg JJ
Purpose: To evaluate trans-left atrioventricular valve (LAVV) blood flow and optimize left ventricular inflow quantification in healthy controls and patients after atrioventricular septal defect (AVSD) correction. Materials and methods: Twenty-five patients after AVSD correction and 25 controls underwent 4DFlow MRI. Using streamline visualization in four- and two-chamber views, inflow direction at early and late filling was defined at the annulus level and at the peak inflow velocity (PIV) level... Abstract
Cited 16 times since 2014 (1.6 per year) source: EuropePMC
The Annals of thoracic surgery, Volume 98, Issue 5, 19 3 2014, Pages 1680-1686 More than 25 years of experience in managing pulmonary atresia with intact ventricular septum. Schneider AW, Blom NA, Bruggemans EF, Hazekamp MG
Background: Management of pulmonary atresia with intact ventricular septum (PAIVS) is challenging and depends on the individual patient's morphologic characteristics. We evaluated outcomes of 25 years of experience in morphologically driven management of PAIVS. Methods: Between January 1985 and December 2011, 60 patients were treated for PAIVS. Patients were retrospectively categorized into mild (n=27), moderate (n=18), and severe (n=15) right ventricular (RV) hypoplasia subgroups based on... Abstract
Cited 4 times since 2014 (0.4 per year) source: EuropePMC
European heart journal. Cardiovascular Imaging, Volume 15, Issue 10, 22 4 2014, Pages 1183 Helical flow pattern in the right pulmonary artery after Fontan palliation. Houtzager JH, Westenberg JJ, de Koning PJ, Hazekamp MG, Roest AA
Cited 12 times since 2014 (1.2 per year) source: EuropePMC
Heart (British Cardiac Society), Volume 100, Issue 17, 16 3 2014, Pages 1360-1365 Persistent neo-aortic growth during adulthood in patients after an arterial switch operation. van der Bom T, van der Palen RL, Bouma BJ, van Veldhuisen SL, Vliegen HW, Konings TC, Zwinderman AH, Blom NA, Koolbergen DR, Hazekamp MG, Mulder BJ
Objective: After the arterial switch operation (ASO), disproportional neo-aortic growth during childhood has been reported. Even though it has been suggested neo-aortic dilation will stabilise in adulthood, data are lacking. The aim of this study was to assess the change in neo-aortic dimensions, prevalence of neo-aortic dilation >40 mm and long-term outcome in adults who underwent ASO in childhood. Methods: All 116 ASO patients operated in a tertiary referral centre and born before 1995 were... Abstract
Cited 9 times since 2014 (0.9 per year) source: EuropePMC
European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery, Volume 47, Issue 2, 17 3 2014, Pages 348-54; discussion 354 Valve-sparing aortic root replacement†. Koolbergen DR, Manshanden JS, Bouma BJ, Blom NA, Mulder BJ, de Mol BA, Hazekamp MG
Objectives: To evaluate our results of valve-sparing aortic root replacement and associated (multiple) valve repair. Methods: From September 2003 to September 2013, 97 patients had valve-sparing aortic root replacement procedures. Patient records and preoperative, postoperative and recent echocardiograms were reviewed. Median age was 40.3 (range: 13.4-68.6) years and 67 (69.1%) were male. Seven (7.2%) patients were younger than 18 years, the youngest being 13.4 years. Fifty-four (55.7%) had Marf... Abstract
Cited 9 times since 2014 (0.9 per year) source: EuropePMC
European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery, Volume 47, Issue 1, 18 3 2014, Pages 146-52; discussion 152 Long-term follow-up of tracheoplasty using autologous pericardial patch and strips of costal cartilage. Yazdanbakhsh AP, van Rijssen LB, Koolbergen DR, König A, de Mol BA, Hazekamp MG
Objectives: To evaluate long-term results of tracheoplasty using autologous pericardial patch and strips of costal cartilage for relieving severe long-segment tracheal stenosis. Methods: Data were collected retrospectively by clinical chart review. Between 1995 and 2013, 21 patients underwent tracheoplasty. Follow-up was performed by outpatient chart review; otherwise, referring physicians and parents were contacted and asked to fill in a questionnaire. Results: Median age at the time of operati... Abstract
Cited 17 times since 2014 (1.7 per year) source: EuropePMC
European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery, Volume 46, Issue 3, 23 4 2014, Pages 474-9; discussion 479 Reoperation for neoaortic root pathology after the arterial switch operation. Koolbergen DR, Manshanden JS, Yazdanbakhsh AP, Bouma BJ, Blom NA, de Mol BA, Mulder BJ, Hazekamp MG
Objectives: To evaluate incidence and results of surgical intervention for neoaortic root pathology following arterial switch operation (ASO) for transposition of the great arteries (TGA). Methods: Between April 1996 and August 2013, 12 patients underwent reoperation for neoaortic root dilatation (ARD) and/or neoaortic valve regurgitation (AR). Maximal aortic sinus and annulus diameter Z-scores were recorded. Original diagnoses were TGA/IVS (6), TGA/ventricular septal defect (VSD) (4) and Taussi... Abstract