Publications
Below you can find a list of our published research.
Below you can find a list of our published research.
884 results
Cited 3 times since 2003 (0.1 per year) source: EuropePMC
Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance, Volume 5, Issue 2, 1 1 2003, Pages 403-405 Comparison of MSCT and MRA in the evaluation of an anomalous right coronary artery. Salm LP, Bax JJ, Dirksen MS, Vliegen HW, Jukema JW, Schalij MJ, van der Wall EE, Lamb HJ
Cited 8 times since 2002 (0.4 per year) source: EuropePMC
European journal of echocardiography : the journal of the Working Group on Echocardiography of the European Society of Cardiology, Volume 3, Issue 4, 1 1 2002, Pages 301-302 Non-compaction cardiomyopathy-echocardiographic diagnosis. Bax JJ, Lamb HJ, Poldermans D, Schalij MJ, de Roos A, van der Wall EE
Non-compaction cardiomyopathy is a recently recognized disorder caused by a defect in endomyocardial morphogenesis. The disease can present with heart failure, systemic embolic events, and ventricular arrhythmias. Long-term prognosis is poor. Echocardiography is used to confirm the diagnosis; in the current case-report, we describe the typical abnormalities observed on echocardiography in a patient with non-compaction cardiomyopathy. Abstract
Cited 14 times since 2002 (0.7 per year) source: EuropePMC
The New England journal of medicine, Volume 347, Issue 22, 1 1 2002, Pages 1803-4; author reply 1803-4 Cardiac resynchronization therapy for heart failure. Bax JJ, Van der Wall EE, Schalij MJ
Cited 1 times since 2002 (0 per year) source: EuropePMC
Netherlands heart journal : monthly journal of the Netherlands Society of Cardiology and the Netherlands Heart Foundation, Volume 10, Issue 7-8, 1 1 2002, Pages 301-303 100 years of electrocardiography; who was Willem Einthoven? (1860-1927). Schalij MJ, van der Wall EE
Cited 42 times since 2002 (1.9 per year) source: EuropePMC
The American journal of cardiology, Volume 90, Issue 4, 1 1 2002, Pages 379-383 Effectiveness of resynchronization therapy in patients with end-stage heart failure. Molhoek SG, Bax JJ, van Erven L, Bootsma M, Boersma E, Steendijk P, van der Wall EE, Schalij MJ
Biventricular pacing has been introduced to treat patients with end-stage heart failure, and short-term results of this technique are promising. Because data on longer follow-up are limited to 3-month follow-up, the sustained effect of biventricular pacing is unclear and long-term survival is unknown. Forty patients with end-stage heart failure in New York Heart Association (NYHA) functional class III or IV with left ventricular (LV) ejection fraction (EF) 120 ms, and left bundle branch block mo... Abstract
Cited 9 times since 2002 (0.4 per year) source: EuropePMC
European radiology, Volume 12 Suppl 3, 14 2 2002, Pages S177-80 Detection of malignant right coronary artery anomaly by multi-slice CT coronary angiography. Dirksen MS, Bax JJ, Blom NA, Schalij MJ, Jukema WJ, Vliegen HW, van der Wall EE, de Roos A, Lamb HJ
Coronary artery anomalies occur in 0.3-0.8% of the population and infer a high risk for sudden cardiac death in young adults. Diagnosis is usually established during coronary angiography, which is hampered by poor spatial visualization. Magnetic resonance imaging is an alternative, but it is not feasible in the presence of metal objects or claustrophobia. In this report, a 15-year-old boy experienced ventricular fibrillation and was successfully resuscitated. Cardiac catheterization was inconclu... Abstract
Cited 52 times since 2002 (2.4 per year) source: EuropePMC
Journal of cardiovascular electrophysiology, Volume 13, Issue 5, 1 1 2002, Pages 417-423 Long-term follow-up after radiofrequency catheter ablation of ventricular tachycardia: a successful approach? Borger van der Burg AE, de Groot NM, van Erven L, Bootsma M, van der Wall EE, Schalij MJ
Introduction: Radiofrequency ablation (RFCA) of ventricular tachycardia (VT) is a potential curative treatment modality. We evaluated the results of RFCA in patients with VT. Methods and results: One hundred fifty-one consecutive patients (122 men and 29 women; age 57 +/- 16 years) with drug-refractory VT were treated. Underlying heart disease was ischemic heart disease in 89 (59%), arrhythmogenic right ventricular cardiomyopathy (ARVC) in 32 (21%), and idiopathic VT in 30 (20%; left ventricle i... Abstract
Netherlands heart journal : monthly journal of the Netherlands Society of Cardiology and the Netherlands Heart Foundation, Volume 10, Issue 2, 1 1 2002, Pages 101-103 Einthoven meeting 2002: 9-11 June, Leiden. Schalij MJ, Van der Wall EE
Netherlands heart journal : monthly journal of the Netherlands Society of Cardiology and the Netherlands Heart Foundation, Volume 10, Issue 2, 1 1 2002, Pages 43-47 Rhythmic sensory stimulation improves fitness by conditioning the autonomic nervous system. Frederiks J, Swenne CA, Ghafoerkhan A, Lalmahomed H, Maan AC, Schalij MJ, Bruschke AV, van der Wall EE
Background: Endurance training is known to alter the functioning of the autonomic nervous system, a major goal when pursuing fitness. Here, we test the hypothesis that the training-associated rhythmic sensations alone, hence without the usual accompanying physical exercise, accomplish this effect. Method: We studied sixteen resting healthy male volunteers, age (mean±SD) 25.9±3.7 years. During one hour we applied, at marching pace (2 bursts per second), bipolar transcutaneous electrical sensory n... Abstract
Cited 10 times since 2002 (0.4 per year) source: EuropePMC
Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic Resonance, Volume 4, Issue 3, 1 1 2002, Pages 353-357 Noninvasive and invasive evaluation of noncompaction cardiomyopathy. Bax JJ, Atsma DE, Lamb HJ, Rebergen SA, Bootsma M, Voogd PJ, Somer S, Schalij MJ, de Roos A, van der Wall EE
Noncompaction cardiomyopathy is a recently described rare congenital cardiomyopathy; patients can be asymptomatic or develop diastolic and/or systolic left ventricular dysfunction with heart failure, systemic emboli or ventricular arrhythmias. Long-term prognosis is poor. Currently, diagnosis is based on findings on 2D echocardiography; in the current case report we demonstrate the use of MRI to diagnose noncompaction cardiomyopathy. Abstract
Cited 3 times since 2001 (0.1 per year) source: EuropePMC
Heart (British Cardiac Society), Volume 86, Issue 5, 1 1 2001, Pages 533-539 Pravastatin and endothelium dependent vasomotion after coronary angioplasty: the PREFACE trial. Mulder HJ, Schalij MJ, Kauer B, Visser RF, van Dijkman PR, Jukema JW, Zwinderman AH, Bruschke AV
Objective: To test the hypothesis that the 3-hydroxy-3-methylglutaryl coenzyme-A reductase inhibitor pravastatin ameliorates endothelium mediated responses of dilated coronary segments: the PREFACE (pravastatin related effects following angioplasty on coronary endothelium) trial. Design: A double blind, randomised, placebo controlled, multicentre study. Setting: Four hospitals in the Netherlands. Patients: 63 non-smoking, non-hypercholesterolaemic patients scheduled for elective balloon angiopla... Abstract
Cited 61 times since 2001 (2.7 per year) source: EuropePMC
Circulation, Volume 104, Issue 17, 1 1 2001, Pages 2029-2033 Stent placement to prevent restenosis after angioplasty in small coronary arteries. Doucet S, Schalij MJ, Vrolix MC, Hilton D, Chenu P, de Bruyne B, Udayachalerm W, Seth A, Bilodeau L, Reiber JH, Harel F, Lespérance J, Stent In Small Arteries(SISA) Trial Investigators
Background: Lesions in small-diameter vessels ( Abstract
Cited 22 times since 2001 (1 per year) source: EuropePMC
Pacing and clinical electrophysiology : PACE, Volume 24, Issue 9 Pt 1, 1 1 2001, Pages 1334-1342 Three-dimensional distribution of bipolar atrial electrogram voltages in patients with congenital heart disease. De Groot NM, Kuijper AF, Blom NA, Bootsma M, Schalij MJ
Voltage differences might be used to distinguish normal atrial tissue from abnormal atrial tissue. This study was aimed at identifying lowest voltage areas in patients with atrial tachycardia after surgical correction of congenital heart disease and to evaluate if identification of these areas in diseased hearts facilitates selection of critical conduction pathways in reentrant circuits as target sites for catheter ablation. Ten patients (four men, age 39 +/- 15 years) with normal sized atria an... Abstract
Nederlands tijdschrift voor geneeskunde, Volume 145, Issue 25, 1 1 2001, Pages 1214-1218 [Treatment of intra-atrial reentry tachycardia by catheter ablation, using three-dimensional electro-anatomical map of the atrial activation pattern]. de Groot NM, Schalij MJ
A 30-year-old man, who had been treated surgically for tricuspid valve atresia as a boy, suffered from recurrent supraventricular tachycardias. These atrial reentry tachycardias are frequent post-operative complications in patients with congenital heart disease. The reentry circuit in these patients often circulates around areas of scar tissue or surgically created barriers such as incision scars and implanted synthetic material. A possible curative treatment of these arrhythmias is radiofrequen... Abstract
Cited 5 times since 2001 (0.2 per year) source: EuropePMC
The Annals of thoracic surgery, Volume 71, Issue 4, 1 1 2001, Pages 1382-1383 Implantation of cardioverter device in young children: the perirenal approach. Hazekamp MG, Blom NA, Schoof PH, Schalij MJ, Dion RA
Placement of Implantable cardioverter devices in young children is complicated because of the relatively large size and heavy weight of these devices. A technique is described where the device is implanted in the left perirenal space while an endovascular lead is used instead of an epicardial patch electrode. Abstract
Cited 20 times since 2001 (0.9 per year) source: EuropePMC
Pflugers Archiv : European journal of physiology, Volume 441, Issue 5, 1 1 2001, Pages 717-724 Within-subject electrocardiographic differences at equal heart rates: role of the autonomic nervous system. Frederiks J, Swenne CA, Kors JA, van Herpen G, Maan AC, Levert JV, Schalij MJ, Bruschke AV
Various combinations of sympathetic and vagal tone can yield the same heart rate, while ventricular electrophysiology differs. To demonstrate this in humans, we studied healthy volunteers in the sitting position with horizontal legs. First, heart rate was increased by lowering the legs to 60 degrees and back. Thereafter, heart rate was increased by handgrip. In each subject, a leg-lowering angle was selected at which heart rate matched best with heart rate in the third handgrip minute. Thirteen... Abstract
Cited 37 times since 2000 (1.6 per year) source: EuropePMC
Journal of cardiovascular electrophysiology, Volume 11, Issue 11, 1 1 2000, Pages 1183-1192 Three-dimensional catheter positioning during radiofrequency ablation in patients: first application of a real-time position management system. de Groot NM, Bootsma M, van der Velde ET, Schalij MJ
Introduction: Precise localization of target sites for radiofrequency catheter ablation (RFCA) of arrhythmias is hampered by the relative inaccuracy of X-ray localization procedures. This study evaluated the efficacy of a three-dimensional (3D) real-time position management system in guiding RFCA procedures in patients. Methods and results: Patients (n = 30, age 59+/-20 years) referred for ablation of either atrial flutter (n = 10), ventricular tachycardia (n = 15), or accessory pathways (n = 5)... Abstract
Cited 28 times since 2000 (1.2 per year) source: EuropePMC
Circulation, Volume 102, Issue 21, 1 1 2000, Pages 2650-2658 Anisotropic reentry in a perfused 2-dimensional layer of rabbit ventricular myocardium. Schalij MJ, Boersma L, Huijberts M, Allessie MA
Background: Anisotropy creates nonuniformity in electrical propagation and may contribute to the occurrence of unidirectional conduction block and reentry. We describe the characteristics of reentrant tachycardia in a 2D layer of anisotropic ventricular myocardium. Methods and results: A Langendorff-perfused epicardial sheet (1.0+/-0.4 mm, n=35) was created by freezing the intramural layers of the rabbit left ventricle. Epicardial activation maps were constructed by use of different high-resolut... Abstract
Cited 29 times since 2000 (1.2 per year) source: EuropePMC
Pacing and clinical electrophysiology : PACE, Volume 23, Issue 11 Pt 1, 1 1 2000, Pages 1638-1644 Reduction of radiation exposure in the cardiac electrophysiology laboratory. Wittkampf FH, Wever EF, Vos K, Geleijns J, Schalij MJ, van der Tol J, Robles de Medina EO
The purpose of this study was to determine the effects of various protective measures on patient and operator radiation dose levels in catheter ablation procedures. Catheter ablation procedures are associated with significant radiation levels. The patient's skin and operator radiation levels were measured (1) at baseline, (2) after primary beam filtration by 0.3-mm copper sheet and 2-mm aluminium plate and implementation of the LocaLisa system, and (3) after reduction of the left anterior o... Abstract
Cited 34 times since 2000 (1.4 per year) source: EuropePMC
Journal of hypertension, Volume 18, Issue 11, 1 1 2000, Pages 1635-1644 The importance of high-frequency paced breathing in spectral baroreflex sensitivity assessment. Frederiks J, Swenne CA, TenVoorde BJ, Honzíková N, Levert JV, Maan AC, Schalij MJ, Bruschke AV
Objective: Computation of the low-frequency (LF) blood pressure variability (BPV) to heart rate variability (HRV) transfer-index is a common method to assess baroreflex sensitivity (BRS), tacitly assuming that all LF-HRV is caused by baroreflex feedback of LF-BPV. However, respiration may also cause HRV by mechanisms not involving the baroreflex. Application of narrow-band (controlled) high-frequency breathing would keep such non-baroreflex-mediated HRV best out of the LF band. Spontaneous breat... Abstract