Publications
Below you can find a list of our published research.
Below you can find a list of our published research.
90 results
Cited 4 times since 2016 (0.5 per year) source: EuropePMC
European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery, Volume 50, Issue 3, 19 3 2016, Pages 476-481 Valve-sparing root replacement in children. Kluin J, Koolbergen DR, Sojak V, Hazekamp MG
Objectives: In children, words of caution have been raised about valve-sparing procedures especially regarding the valve-remodelling technique. This study reviewed our experience with the valve-sparing reimplantation technique in children. Methods: All consecutive paediatric ( Abstract
Cited 14 times since 2016 (1.7 per year) source: EuropePMC
European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery, Volume 50, Issue 3, 16 3 2016, Pages 456-463 Follow-up after tricuspid valve surgery in adult patients with systemic right ventricles. Koolbergen DR, Ahmed Y, Bouma BJ, Scherptong RW, Bruggemans EF, Vliegen HW, Holman ER, Mulder BJ, Hazekamp MG
Objectives: In patients with congenitally corrected transposition of the great arteries (ccTGA) or after atrial (Mustard or Senning) correction for transposition of the great arteries (acTGA), the right ventricle (RV) supports the systemic circulation. The tricuspid valve (TV) (systemic atrioventricular valve) is prone to regurgitation in these patients and this is associated with impending RV failure and decreased survival. This study evaluates mid-term functional improvements, echocardiographi... Abstract
European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery, Volume 49, Issue 5, 5 1 2016, Pages 1426-1427 Down-sizing of cryopreserved homografts is a valuable technique, but do not make them too small. Koolbergen DR
Cited 7 times since 2015 (0.8 per year) source: EuropePMC
Netherlands heart journal : monthly journal of the Netherlands Society of Cardiology and the Netherlands Heart Foundation, Volume 23, Issue 11, 1 1 2015, Pages 539-545 Platypnoea-orthodeoxia syndrome, an underdiagnosed cause of hypoxaemia: four cases and the possible underlying mechanisms. Nassif M, Lu H, Konings TC, Bouma BJ, Vonk Noordegraaf A, Straver B, Blom NA, Clur SA, Backx AP, Groenink M, Boekholdt SM, Koolbergen DR, Hazekamp MG, Mulder BJ, de Winter RJ
Cardiac platypnoea-orthodeoxia syndrome (POS) is a position-dependent condition of dyspnoea and hypoxaemia due to right-to-left shunting. It often remains unrecognised in clinical practice, possibly because of its complex underlying pathophysiology. We present four consecutive patients with POS and patent foramen ovale (PFO) who underwent a successful percutaneous PFO closure, describe the mechanism of their POS and provide a review of the literature. Abstract
Cited 46 times since 2015 (5.4 per year) source: EuropePMC
European heart journal, Volume 37, Issue 10, 27 4 2015, Pages 829-835 Preoperative thresholds for mid-to-late haemodynamic and clinical outcomes after pulmonary valve replacement 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
Aims: The right ventricle (RV) remodels early after pulmonary valve replacement (PVR) in tetralogy of Fallot (TOF) patients. Previously reported preoperative thresholds to achieve early postoperative RV normalization were consistently close to 80 mL/m(2) for end-systolic volume (ESV) and 160 mL/m(2) for end-diastolic volume (EDV). Our objective was to determine whether these thresholds were also associated with mid-to-late RV normalization and clinical events. Methods and results: Out of a multi... Abstract
Cited 3 times since 2015 (0.3 per year) source: EuropePMC
EBioMedicine, Volume 2, Issue 9, 31 5 2015, Pages 1217-1223 Continuous Postoperative Pericardial Flushing: A Pilot Study on Safety, Feasibility, and Effect on Blood Loss. Manshanden JS, Gielen CL, de Borgie CA, Klautz RJ, de Mol BA, Koolbergen DR
Background: Prolonged or excessive blood loss is a common complication after cardiac surgery. Blood remnants and clots, remaining in the pericardial space in spite of chest tube drainage, induce high fibrinolytic activity that may contribute to bleeding complications. Continuous postoperative pericardial flushing (CPPF) with an irrigation solution may reduce blood loss by preventing the accumulation of clots. In this pilot study, the safety and feasibility of CPPF were evaluated and the effect o... 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 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 13 times since 2015 (1.4 per year) source: EuropePMC
International journal of cardiology, Volume 186, 11 2 2015, Pages 315-320 Weighing the risks: Thrombotic and bleeding events in adults with atrial arrhythmias and congenital heart disease. Heidendael JF, Bokma JP, de Groot JR, Koolbergen DR, Mulder BJ, Bouma BJ
Introduction: Atrial arrhythmias are associated to thromboembolism and anticoagulant treatment is installed according to risk profile. This study aimed to assess the rate of thrombotic events and major bleedings in adults with congenital heart disease (CHD) and atrial arrhythmias, as well as to determine the predictive value of specific clinical features and two risk scores for thromboembolism and bleeding. Methods and results: In this retrospective study, a total of 229 adult CHD patients with... 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
International journal of cardiology, Volume 177, Issue 2, 5 1 2014, Pages e70-1 Computed tomography coronary angiography should be performed in all patients with Marfan Syndrome prior to aortic root replacement. Winter MM, Koolbergen DR, Groenink M, Franken R, Mulder BJ, Bouma BJ
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 3 times since 2014 (0.3 per year) source: EuropePMC
Netherlands heart journal : monthly journal of the Netherlands Society of Cardiology and the Netherlands Heart Foundation, Volume 22, Issue 5, 1 1 2014, Pages 240-245 Unroofed coronary sinus newly diagnosed in adult patients after corrected congenital heart disease. Pérez Matos AJ, Planken RN, Bouma BJ, Groenink M, Backx AP, de Winter RJ, Koolbergen DR, Mulder BJ, Boekholdt SM
Patients with congenital heart disease corrected in early childhood may later in life present with cardiac symptoms caused by other associated congenital anomalies that were initially not diagnosed. Nowadays, several noninvasive imaging modalities are available for the visualisation of cardiac anatomy in great detail. We describe two patients with an unroofed coronary sinus, a rare congenital anomaly which could be diagnosed using a combination of modalities including echocardiography, cardiac C... 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 28 times since 2014 (2.8 per year) source: EuropePMC
Netherlands heart journal : monthly journal of the Netherlands Society of Cardiology and the Netherlands Heart Foundation, Volume 22, Issue 4, 1 1 2014, Pages 160-166 Left cardiac sympathetic denervation in the Netherlands for the treatment of inherited arrhythmia syndromes. Olde Nordkamp LR, Driessen AH, Odero A, Blom NA, Koolbergen DR, Schwartz PJ, Wilde AA
Introduction: Treating therapy-resistant patients with inherited arrhythmia syndromes can be difficult and left cardiac sympathetic denervation (LCSD) might be a viable alternative treatment option. We provide an overview of the indications and outcomes of LCSD in patients with inherited arrhythmia syndromes in the only tertiary referral centre in the Netherlands where LCSD is conducted in these patients. Methods: This was a retrospective study, including all patients with inherited arrhythmia s... 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
Cited 17 times since 2013 (1.6 per year) source: EuropePMC
International journal of cardiology, Volume 169, Issue 2, 8 2 2013, Pages 139-144 Postoperative arrhythmias in adults with congenital heart disease: incidence and risk factors. Koyak Z, Achterbergh RC, de Groot JR, Berger F, Koolbergen DR, Bouma BJ, Lagrand WK, Hazekamp MG, Blom NA, Mulder BJ
Background: Little is known about the clinical impact of arrhythmias after surgery for congenital heart disease (CHD) in adults. Therefore, we investigated the prevalence of in-hospital arrhythmias after CHD surgery and their impact on clinical outcome. Methods: This was a multicenter retrospective study and included adults who underwent congenital cardiac surgery between January 2009 and December 2011. Clinical events were defined as all cause mortality, heart failure (HF) requiring medical tre... Abstract