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 2005 (0.2 per year) source: EuropePMC
European journal of pediatrics, Volume 164, Issue 9, 12 2 2005, Pages 559-562 Low-energy radiofrequency catheter ablation as therapy for supraventricular tachycardia in a premature neonate. Kolditz DP, Blom NA, Bökenkamp R, Schalij MJ
Unlabelled: A premature neonate with hydrops was born at 32 weeks of gestation after successful direct fetal amiodarone therapy via cordocentesis for incessant supraventricular tachycardia. After birth the tachycardia could not be controlled despite high doses of amiodarone and flecainide and the patient developed severe respiratory and circulatory failure. After 3 weeks, weighing 2 kg, he underwent successful and uncomplicated catheter ablation of a left free-wall accessory pathway using low-en... Abstract
Cited 16 times since 2005 (0.8 per year) source: EuropePMC
The American journal of cardiology, Volume 95, Issue 9, 1 1 2005, Pages 1111-1114 Effect of cardiac resynchronization therapy on inducibility of ventricular tachyarrhythmias in cardiac arrest survivors with either ischemic or idiopathic dilated cardiomyopathy. Kiès P, Bax JJ, Molhoek SG, Bleeker GB, Zeppenfeld K, Bootsma M, van Erven L, Steendijk P, van der Wall EE, Schalij MJ
We evaluated whether long-term cardiac resynchronization therapy affects the inducibility of ventricular tachyarrhythmias in relation to reverse remodeling in cardiac arrest survivors with either ischemic or idiopathic dilated cardiomyopathy. Clinical, electrophysiologic, and echocardiographic data of 18 patients were obtained before and after 6 months of cardiac resynchronization. Abstract
Cited 5 times since 2005 (0.3 per year) source: EuropePMC
European journal of echocardiography : the journal of the Working Group on Echocardiography of the European Society of Cardiology, Volume 6, Issue 5, 2 1 2005, Pages 388-391 Contrast echocardiography as a useful additional diagnostic tool in evaluating a primary cardiac tumor. Haverkamp MC, Scholte AJ, Holman ER, Jongbloed MR, Schippers EF, de Roos A, van der Wall EE, Poldermans D, Bax JJ, Schalij MJ
The current report describes a case of a primary cardiac lymphoma. For early and appropriate treatment of a cardiac mass it is not only important to determine its localization and extension but also to differentiate between malignant and benign lesions. This report demonstrates that not only transthoracic echocardiography but also the other different forms of echocardiography such as transesophageal echocardiography, as well as contrast and intracardiac echocardiography, are useful tools in the... Abstract
Cited 43 times since 2005 (2.2 per year) source: EuropePMC
Pacing and clinical electrophysiology : PACE, Volume 28, Issue 4, 1 1 2005, Pages 304-310 Cardiac resynchronization induces favorable neurohumoral changes. Erol-Yilmaz A, Verberne HJ, Schrama TA, Hrudova J, De Winter RJ, Van Eck-Smit BL, De Bruin R, Bax JJ, Schalij MJ, Wilde AA, Tukkie R
Aim: The aim of this article is to examine whether cardiac resynchronization therapy (CRT) induces improvements in the neurohumoral system. Methods and results: Thirteen patients with HF (left ventricular (LV) ejection fraction Abstract
Cited 3 times since 2005 (0.2 per year) source: EuropePMC
European heart journal, Volume 26, Issue 11, 24 4 2005, Pages 1054-1055 How to predict response to cardiac resynchronization therapy? Bax JJ, Schalij MJ
Cited 28 times since 2005 (1.5 per year) source: EuropePMC
Circulation research, Volume 96, Issue 7, 10 2 2005, Pages 776-783 Development of the right ventricular inflow tract and moderator band: a possible morphological and functional explanation for Mahaim tachycardia. Jongbloed MR, Wijffels MC, Schalij MJ, Blom NA, Poelmann RE, van der Laarse A, Mentink MM, Wang Z, Fishman GI, Gittenberger-de Groot AC
Atriofascicular accessory bundles with AV-node like conduction properties can sustain atrioventricular (AV) re-entrant tachycardia (Mahaim tachycardia). During early embryogenesis, the AV canal is situated above the primitive left ventricle (LV), and a right AV connection has not been achieved yet. We studied the formation of the right ventricular (RV) inflow tract in relation to the developing cardiac conduction system and hypothesized a morphological explanation for functional atriofascicular... Abstract
Cited 153 times since 2005 (8 per year) source: EuropePMC
Journal of the American College of Cardiology, Volume 45, Issue 5, 1 1 2005, Pages 749-753 Noninvasive visualization of the cardiac venous system using multislice computed tomography. Jongbloed MR, Lamb HJ, Bax JJ, Schuijf JD, de Roos A, van der Wall EE, Schalij MJ
Objectives: We sought to evaluate the value of multislice computed tomography (MSCT) to depict the cardiac venous anatomy. Background: During cardiac resynchronisation therapy (CRT), left ventricular (LV) pacing is established by a pacemaker lead in a tributary of the coronary sinus (CS). Knowledge of the CS anatomy and variations may facilitate the implantation of LV leads. Methods: The MSCT scans of 38 patients (34 men; age 60 +/- 12 years) were studied. Anatomical variants were divided in thr... Abstract
Cited 103 times since 2005 (5.4 per year) source: EuropePMC
International journal of cardiology, Volume 99, Issue 1, 1 1 2005, Pages 9-17 Drug-eluting stents: results, promises and problems. van der Hoeven BL, Pires NM, Warda HM, Oemrawsingh PV, van Vlijmen BJ, Quax PH, Schalij MJ, van der Wall EE, Jukema JW
In-stent restenosis is the major drawback of percutaneous coronary interventions, occurring in 10-40% of the patients. Recently, new stents have emerged which are loaded with anti-inflammatory, anti-migratory, anti-proliferative or pro-healing drugs. These drugs are supposed to inhibit inflammation and neointimal growth and subsequently in-stent restenosis. In this review article the results of human clinical studies investigating drug-eluting stents are discussed from a clinical point of view,... Abstract
Cited 9 times since 2005 (0.5 per year) source: EuropePMC
European journal of echocardiography : the journal of the Working Group on Echocardiography of the European Society of Cardiology, Volume 6, Issue 5, 24 4 2005, Pages 382-384 Tissue Doppler imaging to assess left ventricular dyssynchrony and resynchronization therapy. Bleeker GB, Bax JJ, Schalij MJ, van der Wall EE
We describe the use of tissue Doppler imaging to assess left ventricular dyssynchrony and subsequent resynchronization in a patient with end-stage heart failure undergoing cardiac resynchronization therapy. Abstract
Cited 55 times since 2005 (2.9 per year) source: EuropePMC
European heart journal, Volume 26, Issue 9, 16 3 2005, Pages 928-932 Reduction of QRS duration after pulmonary valve replacement in adult Fallot patients is related to reduction of right ventricular volume. van Huysduynen BH, van Straten A, Swenne CA, Maan AC, van Eck HJ, Schalij MJ, van der Wall EE, de Roos A, Hazekamp MG, Vliegen HW
Aims: Late after total correction, Fallot patients with a long QRS duration are prone to serious arrhythmias and sudden cardiac death. Pulmonary regurgitation is a common cause of right ventricular (RV) failure and QRS lengthening. We studied the effects of pulmonary valve replacement (PVR) on QRS duration and RV volume. Methods and results: Twenty-six consecutive Fallot patients were evaluated both pre-operatively and 6-12 months post-operatively by cardiac magnetic resonance (CMR). In this stu... Abstract
Cited 71 times since 2005 (3.7 per year) source: EuropePMC
Journal of the American College of Cardiology, Volume 45, Issue 3, 1 1 2005, Pages 343-350 Multislice computed tomography versus intracardiac echocardiography to evaluate the pulmonary veins before radiofrequency catheter ablation of atrial fibrillation: a head-to-head comparison. Jongbloed MR, Bax JJ, Lamb HJ, Dirksen MS, Zeppenfeld K, van der Wall EE, de Roos A, Schalij MJ
Objectives: The purpose of this study was to perform a head-to-head comparison between multislice computed tomography (MSCT) and intracardiac echocardiography (ICE). Background: Different imaging techniques have been used to visualize the pulmonary veins (PV) before radiofrequency ablation of atrial fibrillation. Methods: The PV and their atrial insertion were evaluated in 42 patients (35 men, 49 +/- 9 years) admitted for ablation of PV ostia. Ostia were measured in two directions (anterior-post... Abstract
Cited 73 times since 2005 (3.8 per year) source: EuropePMC
Radiology, Volume 234, Issue 3, 21 3 2005, Pages 702-709 Atrial fibrillation: multi-detector row CT of pulmonary vein anatomy prior to radiofrequency catheter ablation--initial experience. Jongbloed MR, Dirksen MS, Bax JJ, Boersma E, Geleijns K, Lamb HJ, van der Wall EE, de Roos A, Schalij MJ
Purpose: To evaluate multi-detector row computed tomographic (CT) depiction of pulmonary veins to provide a road map for radiofrequency catheter ablation. Materials and methods: For patients, institutional review board (IRB) approval was not required, and consent was obtained for treatment. Control subjects were part of an IRB-approved research protocol at the institution, in which they had consented to participate. Multi-detector row CT was performed in 23 patients (17 men, six women; mean age,... Abstract
Cited 78 times since 2005 (4 per year) source: EuropePMC
The American journal of cardiology, Volume 95, Issue 1, 1 1 2005, Pages 140-142 Frequency of left ventricular dyssynchrony in patients with heart failure and a narrow QRS complex. Bleeker GB, Schalij MJ, Molhoek SG, Holman ER, Verwey HF, Steendijk P, van der Wall EE, Bax JJ
Cardiac resynchronization therapy (CRT) is considered a major advance in the treatment of patients with heart failure. The presence of left ventricular (LV) dyssynchrony seems mandatory for a positive response to CRT. Currently, only patients with wide QRS complexes are considered for CRT, although patients with narrow QRS complexes may also have LV dyssynchrony. In the present study, the incidence of LV dyssynchrony was prospectively evaluated in 64 patients with heart failure and narrow QRS co... Abstract
Netherlands heart journal : monthly journal of the Netherlands Society of Cardiology and the Netherlands Heart Foundation, Volume 13, Issue 1, 1 1 2005, Pages 1-3 Optimalisation of preclinical, clinical and chronic care for patients with acute MI: MISSION! possible. Liem SS, van der Hoeven BL, Schalij MJ, van der Wall EE
Cited 141 times since 2004 (7.2 per year) source: EuropePMC
The American journal of cardiology, Volume 94, Issue 12, 1 1 2004, Pages 1506-1509 Comparison of response to cardiac resynchronization therapy in patients with sinus rhythm versus chronic atrial fibrillation. Molhoek SG, Bax JJ, Bleeker GB, Boersma E, van Erven L, Steendijk P, van der Wall EE, Schalij MJ
Cardiac resynchronization therapy (CRT) is a new therapeutic option for patients who have drug-refractory end-stage heart failure. Much information has been obtained from patients who have sinus rhythm, but the use of CRT in patients who have chronic atrial fibrillation (AF) has not been studied extensively. Accordingly, we evaluated the clinical response and long-term survival rate of CRT in patients who had heart failure and chronic AF, and the results were compared with those in patients who... Abstract
Cited 2 times since 2004 (0.1 per year) source: EuropePMC
Pacing and clinical electrophysiology : PACE, Volume 27, Issue 12, 1 1 2004, Pages 1603-1609 Hypertensive stress increases dispersion of repolarization. Van Huysduynen BH, Swenne CA, Van Eck HJ, Kors JA, Schoneveld AL, Van De Vooren H, Schiereck P, Schalij MJ, Van Der Wall EE
Several electrocardiographic indices for repolarization heterogeneity have been proposed previously. The behavior of these indices under two different stressors at the same heart rate (i.e., normotensive gravitational stress, and hypertensive isometric stress) was studied. ECG and blood pressure were recorded in 56 healthy men during rest (sitting with horizontal legs), hypertensive stress (performing handgrip), and normotensive stress (sitting with lowered legs). During both stressors, heart ra... Abstract
Cited 38 times since 2004 (1.9 per year) source: EuropePMC
Circulation, Volume 110, Issue 20, 8 2 2004, Pages 3187-3192 Left atrial tachycardia originating from the mitral annulus-aorta junction. Gonzalez MD, Contreras LJ, Jongbloed MR, Rivera J, Donahue TP, Curtis AB, Bailey MS, Conti JB, Fishman GI, Schalij MJ, Gittenberger-de Groot AC
Background: At the mitral annulus-aorta (MA-Ao) junction, the left atrium is continuous through the subaortic curtain with the musculature of the anterior mitral leaflet. Under experimental conditions, this region can generate abnormal electrical activity. In patients with left atrial tachycardia, we investigated whether this region could be the source of this arrhythmia. Methods and results: In 10 (28%) of 35 consecutive patients with left atrial tachycardia, the arrhythmia originated from the... Abstract
Cited 696 times since 2004 (35.6 per year) source: EuropePMC
Journal of the American College of Cardiology, Volume 44, Issue 9, 1 1 2004, Pages 1834-1840 Left ventricular dyssynchrony predicts response and prognosis after cardiac resynchronization therapy. Bax JJ, Bleeker GB, Marwick TH, Molhoek SG, Boersma E, Steendijk P, van der Wall EE, Schalij MJ
Objectives: This study was designed to predict the response and prognosis after cardiac resynchronization therapy (CRT) in patients with end-stage heart failure (HF). Background: Cardiac resynchronization therapy improves HF symptoms, exercise capacity, and left ventricular (LV) function. Because not all patients respond, preimplantation identification of responders is needed. In the present study, response to CRT was predicted by the presence of LV dyssynchrony assessed by tissue Doppler imagin... Abstract
Cited 91 times since 2004 (4.7 per year) source: EuropePMC
Journal of cardiovascular electrophysiology, Volume 15, Issue 11, 1 1 2004, Pages 1258-1262 Incidence and risk factors of early venous thrombosis associated with permanent pacemaker leads. van Rooden CJ, Molhoek SG, Rosendaal FR, Schalij MJ, Meinders AE, Huisman MV
Introduction: Pacemaker lead implantation can cause thrombosis, which can be associated with serious local morbidity and complicated by pulmonary embolism. Few reliable estimates of the incidence of thrombosis have been reported. The contribution of established risk factors to venous thrombosis in patients with implanted pacemaker leads is unknown. Methods and results: One hundred forty-five consecutive patients n = 145) underwent routine clinical and Doppler ultrasound evaluation for thrombosis... Abstract
Cited 103 times since 2004 (5.2 per year) source: EuropePMC
Circulation, Volume 110, Issue 11 Suppl 1, 1 1 2004, Pages II103-8 Restrictive annuloplasty and coronary revascularization in ischemic mitral regurgitation results in reverse left ventricular remodeling. Bax JJ, Braun J, Somer ST, Klautz R, Holman ER, Versteegh MI, Boersma E, Schalij MJ, van der Wall EE, Dion RA
Background: Data on combined coronary artery bypass grafting (CABG) and restrictive annuloplasty in patients with ischemic cardiomyopathy are scarce, and the effect on reverse left ventricular (LV) remodeling is unknown. Methods and results: 51 patients with ischemic LV dysfunction (LV ejection fraction 31+/-8%) and severe mitral regurgitation (grade 3 to 4+) underwent CABG and restrictive annuloplasty with stringent downsizing of the mitral annulus (by 2 sizes, Physio-ring, mean size 28+/-2). S... Abstract