Publications
Below you can find a list of our published research.
Below you can find a list of our published research.
883 results
Cited 53 times since 2000 (2.2 per year) source: EuropePMC
The American journal of cardiology, Volume 86, Issue 4, 1 1 2000, Pages 385-389 Heparin-coated Wiktor stents in human coronary arteries (MENTOR trial). MENTOR Trial Investigators. Vrolix MC, Legrand VM, Reiber JH, Grollier G, Schalij MJ, Brunel P, Martinez-Elbal L, Gomez-Recio M, Bär FW, Bertrand ME, Colombo A, Brachman J
The purpose of this study was to determine the feasibility, safety, and efficacy of elective stenting with heparin-coated Wiktor stents in patients with coronary artery disease. In experimental studies, heparin coating has been shown to prevent subacute thrombosis and restenosis. Recently, a new method of heparin coating was developed, resulting in a more stable and predictable heparin layer on stent devices. This trial constitutes the first in-human use of this coating procedure, applied on the... Abstract
Cited 8 times since 2000 (0.3 per year) source: EuropePMC
Pacing and clinical electrophysiology : PACE, Volume 23, Issue 8, 1 1 2000, Pages 1232-1238 No gender differences in pacemaker selection in patients undergoing their first implantation. Roeters Van Lennep JE, Zwinderman AH, Roeters Van Lennep HW, Van Hemel NM, Schalij MJ, van der Wall EE
Recent studies have indicated that women were less likely to receive sophisticated pacemaker devices than men. These differences could not be fully explained by demographic and clinical variables. The purpose of the present study was to assess whether a gender related difference might exist in pacemaker mode selection in patients undergoing their first implantation in The Netherlands. Records of first implants (n = 39,217) collected from 1988 through 1997 covering 95% of all implantations in The... Abstract
Cited 45 times since 2000 (1.9 per year) source: EuropePMC
Herz, Volume 25, Issue 4, 1 1 2000, Pages 356-364 Arrhythmogenic right ventricular dysplasia: MRI findings. van der Wall EE, Kayser HW, Bootsma MM, de Roos A, Schalij MJ
Arrhythmogenic right ventricular dysplasia (ARVD) is a heart muscle disorder of unknown cause that is characterized pathologically by fibrofatty replacement of the right ventricular myocardium. Clinical manifestations include structural and functional malformations of the right ventricle, electrocardiographic abnormalities, and presentation with ventricular tachycardias with left bundle branch pattern or sudden death. The disease is often familial with an autosomal inheritance. In addition to ri... Abstract
Cited 11 times since 2000 (0.5 per year) source: EuropePMC
Critical care medicine, Volume 28, Issue 5, 1 1 2000, Pages 1599-1606 Evaluation of a new transcardiac conductance method for continuous on-line measurement of left ventricular volume. Steendijk P, Lardenoye JW, van der Velde ET, Schalij MJ, Baan J
Objective: To evaluate a new, less invasive, conductance method to measure continuous on-line left ventricular volume. End-systolic and end-diastolic volumes obtained with this transcardiac conductance method were compared with simultaneous measurements using the conventional intracardiac conductance catheter. Design: Controlled animal study. Setting: Research laboratory in a university hospital. Subjects: Six sheep. Interventions: Anesthetized sheep were instrumented and inotropic condition was... Abstract
Cited 4 times since 2000 (0.2 per year) source: EuropePMC
The Journal of invasive cardiology, Volume 12, Issue 4, 1 1 2000, Pages 187-193 Clinical and angiographic outcome of stent implantation without predilatation using the Jostent Flex stent. Oemrawsingh PV, Schalij MJ, Srimahachota S, Jukema JW, Bruschke AV
Conventional stenting requires predilatation which potentially increases vessel wall injury and cost of the procedure. In this study, the safety and efficacy of direct Jostent Flex (Jomed AB, Helsingborg, Sweden) stent placement was evaluated in 50 patients. Quantitative coronary angiography was performed at baseline, post-stent and 6 months follow-up. Clinical follow-up was done up to 9 months. In 50 patients (38 male/12 female; age 61+/-12 years) with stable (n = 42; 84%) or unstable (n = 8; 1... Abstract
Cited 4 times since 1999 (0.2 per year) source: EuropePMC
Catheterization and cardiovascular interventions : official journal of the Society for Cardiac Angiography & Interventions, Volume 48, Issue 1, 1 1 1999, Pages 105-112 Stenting of long coronary artery lesions: initial angiographic results and 6-month clinical outcome of the micro stent II-XL. Schalij MJ, Udayachalerm W, Oemrawsingh P, Jukema JW, Reiber JH, Bruschke AV
To evaluate the results of long Micro Stent II (MS-XL) implantations, 119 MS-XLs were implanted in 102 patients (age, 62.83 years). Nineteen stents (16%) were implanted in saphenous vein grafts; 100 stents (84%) were implanted in native coronary arteries. Twenty-five patients (25%) were treated because of acute myocardial infarction (AMI); 30 patients (29%) because of unstable angina or angina class IV, and 47 patients (46%) because of stable angina. Eighty-six de novo lesions (84%) and 16 reste... Abstract
Cited 30 times since 1998 (1.2 per year) source: EuropePMC
Circulation, Volume 98, Issue 20, 1 1 1998, Pages 2168-2179 Endocardial activation mapping of ventricular tachycardia in patients : first application of a 32-site bipolar mapping electrode catheter. Schalij MJ, van Rugge FP, Siezenga M, van der Velde ET
Background: Localization of early activated endocardial areas during ventricular tachycardia (VT) is mandatory for performance of surgical or radiofrequency catheter interventions. The use of a multielectrode catheter may shorten the procedure time and increase the accuracy of the procedure compared with single-electrode mapping techniques. This study was performed to evaluate the safety and efficacy of a 32-bipolar-electrode mapping catheter in patients. Methods and results: The basket-shaped m... Abstract
Cited 1 times since 1998 (0 per year) source: EuropePMC
Catheterization and cardiovascular diagnosis, Volume 44, Issue 2, 1 1 1998, Pages 131-137 Micro stent implantation in patients with acute myocardial infarction without anticoagulation: clinical experience with two different antithrombotic protocols. Oemrawsingh PV, Schalij MJ, Udayachalerm W, van der Wall EE, Bruschke AV
The 4-week outcome following Micro stent implantation for acute myocardial infarction was assessed with the use of two different antithrombotic regimens. The patients were postprocedurally treated with acetyl salicylic acid (ASA) and heparin for 24-48 h (Group I; n = 52), or ASA and ticlopidine plus abciximab if indicated (Group II; n = 52). Stent implantation was successful in 49 patients (94%) of group I and in 46 patients (89%) of group II (NS). Subacute stent thrombosis occurred in nine pati... Abstract
Cited 11 times since 1998 (0.4 per year) source: EuropePMC
The American journal of cardiology, Volume 81, Issue 3, 1 1 1998, Pages 302-305 Subcutaneous single-incision implantation of cardioverter-defibrillators under local anesthesia by electrophysiologists in the electrophysiology laboratory. van Rugge FP, Savalle LH, Schalij MJ
Implantable cardioverter-defibrillators (ICDs) have traditionally been implanted at the operating room under general anesthesia. Endocardial lead systems and downsized devices allowed implantation by electrophysiologists in the pectoral region. The present study evaluates the safety and efficacy of subcutaneous ICD implantation performed entirely by electrophysiologists using a single-incision approach for lead insertion and device placement under local anesthesia. Between June 1996 and May 1997... Abstract
Cited 5 times since 1998 (0.2 per year) source: EuropePMC
The American journal of cardiology, Volume 81, Issue 2, 1 1 1998, Pages 152-157 Clinical and angiographic outcome of Micro Stent II implantation in native coronary arteries. Oemrawsingh PV, Tuinenburg JC, Schalij MJ, Jukema JW, Reiber JH, Bruschke AV
To evaluate immediate success and 6-month restenosis rate, 70 Micro Stents II were implanted for 65 stenoses in 63 patients (age 59+/-9 years). Stable angina pectoris was present in 47% of the patients (38% class I to III; 9% class IV), whereas 32% had postinfarction angina and 21% had unstable angina. Indications for stent implantation were elective in 62% and semi-elective in 38% of the patients. Sixty-two percent of the patients received ticlopidin and acetylsalicylic acid for 28 days, wherea... Abstract
Cited 9 times since 1998 (0.3 per year) source: EuropePMC
Catheterization and cardiovascular diagnosis, Volume 43, Issue 1, 1 1 1998, Pages 19-27; discussion 28 Micro stent I, initial results, and six months follow-up by quantitative coronary angiography. Schalij MJ, Savalle LH, Tresukosol D, Jukema JW, Reiber JH, Bruschke AV
The Micro stent (MS) is a balloon expandable stent that allows the treatment of stenoses in distal and tortuous coronary arteries. This prospective study was performed to evaluate initial and late results of MS implantations. A total of 127 MS (101 in native coronary arteries and 26 in saphenous vein grafts) were implanted in 85 patients (1.5 stents/pt, 65 male, and 20 female, age 62, +/-10 yr) with angina pectoris class II-III: 21 (25%), angina pectoris class IV: 41(48%), and acute myocardial i... Abstract
Cited 10 times since 1997 (0.4 per year) source: EuropePMC
AJR. American journal of roentgenology, Volume 169, Issue 4, 1 1 1997, Pages 995-999 Biventricular function in patients with nonischemic right ventricle tachyarrhythmias assessed with MR imaging. Kayser HW, Schalij MJ, van der Wall EE, Stoel BC, de Roos A
Investigative radiology, Volume 32, Issue 9, 1 1 1997, Pages 540-549 Quantitative assessment of the presence of a single leg separation in Björk-Shiley convexoconcave prosthetic heart valves. Vrooman HA, Maliepaard C, van der Linden LP, Jessurun ER, Ludwig JW, Plokker HW, Schalij MJ, Weeda HW, Laufer JL, Huysmans HA, Reiber JH
Rationale and objectives: The authors developed an analytic software package for the objective and reproducible assessment of a single leg separation (SLS) in the outlet strut of Björk-Shiley convexoconcave (BSCC) prosthetic heart valves. Methods: The radiographic cinefilm recordings of 18 phantom valves (12 intact and 6 SLS) and of 43 patient valves were acquired. After digitization of regions of interest in a cineframe, several processing steps were carried out to obtain a one-dimensional corr... Abstract
Cited 5 times since 1997 (0.2 per year) source: EuropePMC
European heart journal, Volume 18, Issue 8, 1 1 1997, Pages 1313-1321 Beneficial effect of enalapril on left ventricular remodelling in patients with a severe residual stenosis after acute anterior wall infarction. Baur LH, Schipperheyn JJ, van der Wall EE, van der Velde EA, Schalij MJ, van Eck-Smit BL, van der Laarse A, Voogd PJ, Sedney MI, Reiber JH, Bruschke AV
Objective: The present study was designed to evaluate the effects of early angiotensin converting enzyme (ACE) inhibition on left ventricular enlargement in patients with anterior wall infarction following reperfusion therapy. Methods: Seventy-one consecutive patients with an anterior wall myocardial infarction were randomly allocated to enalapril (n = 36) or placebo (n = 35). All patients received either thrombolytic therapy (n = 46) or underwent primary coronary angioplasty (n = 25). Medicatio... Abstract
Cited 5 times since 1996 (0.2 per year) source: EuropePMC
Catheterization and cardiovascular diagnosis, Volume 38, Issue 2, 1 1 1996, Pages 135-143 Micro stent, quantitative coronary angiography, and procedural results. Tresukosol D, Schalij MJ, Savalle LH, Jukema JW, Buis B, Reiber JH, Bruschke AV
The Micro stent (MS) is a radiopaque stainless steel balloon expandable intracoronary stent. The stent is mounted on a rapid-exchange delivery system. From August 1994-March 1995, 127 MS were implanted in 85 patients (pts, 1.5 stents/pt, 85 in native vessels and 42 in bypass vein grafts, 61 males and 24 female, age 33-77 yr, mean age 61 +/- 10 yr). Pts studied were scheduled for either elective PTCA (n = 62, 73%) or PTCA for acute myocardial infarction (n = 23, 27%). Elective stent implantation... Abstract
Cited 11 times since 1996 (0.4 per year) source: EuropePMC
International journal of cardiac imaging, Volume 12, Issue 2, 1 1 1996, Pages 69-78 Left ventricular regression equations from single plane cine and digital X-ray ventriculograms revisited. Reiber JH, Viddeleer AR, Koning G, Schalij MJ, Lange PE
For the assessment of left ventricular volume from X-ray ventriculograms, widely known regression equations are used to correct for the irregular shape of the left ventricular lumen and the presence of the papillary muscles and trabeculations. These regression equations were derived in the late nineteen sixties and seventies. With all the changes in X-ray technology that have taken place over the past 20-30 years, the question was raised whether these regression equations were still valid. There... Abstract
Cited 6 times since 1995 (0.2 per year) source: EuropePMC
European heart journal, Volume 16, Issue 12, 1 1 1995, Pages 1860-1871 Comparison between regional myocardial perfusion reserve and coronary flow reserve in the canine heart. Geldof MJ, Schalij MJ, Manger Cats V, van der Zwet PM, Steendijk P, van der Velde ET, Nagtegaal EM, Reiber JH, Bruschke AV
Diameter stenosis and flow reserve are indices of morphological and functional severity of coronary artery stenosis. Flow reserve can be determined at coronary arterial or at myocardial level. In the presence of functional collateral circulation, coronary flow reserve and myocardial perfusion reserve may differ. We studied coronary flow, coronary flow reserve and myocardial perfusion reserve in an open chest dog model with intact collateral circulation, before and after induction of coronary art... Abstract
Cited 44 times since 1992 (1.4 per year) source: EuropePMC
The American journal of physiology, Volume 263, Issue 5 Pt 2, 1 1 1992, Pages H1466-78 Anisotropic conduction and reentry in perfused epicardium of rabbit left ventricle. Schalij MJ, Lammers WJ, Rensma PL, Allessie MA
An experimental model of anisotropy was developed, consisting of a thin layer (1 mm) of perfused ventricular epicardium created by cryodestruction of the interventricular septum and the inner four-fifths of the free wall of the left ventricle. The electrophysiological properties of the 1-mm-thick surviving layer were the same as before freezing. Epicardial conduction was mapped with a 192-fold mapping electrode (spatial resolution 1 mm). In the intact ventricle transverse conduction was interrup... Abstract
The Netherlands journal of medicine, Volume 40, Issue 1-2, 1 1 1992, Pages 69-75 Pulmonary embolism treated with a single dose of anisoylated lys-plasminogen streptokinase activator complex and systemic heparinization; a report of two cases. Schalij MJ, van de Meeberg PC, Marsman JW, Maingay D
Pulmonary embolism (PE) is an important cause of morbidity and mortality in the Western World. Systemic heparinization is usually applied as the treatment of first choice. However, a subgroup of patients presenting with massive PE and haemodynamic deterioration die in the acute phase or remain severely disabled. Several studies have demonstrated the beneficial effects of thrombolytic agents in the treatment of massive PE. This communication presents two patients with clinically massive PE of rec... Abstract
Cited 82 times since 1990 (2.4 per year) source: EuropePMC
The American journal of physiology, Volume 259, Issue 4 Pt 2, 1 1 1990, Pages H1254-63 Quantification of spatial inhomogeneity in conduction and initiation of reentrant atrial arrhythmias. Lammers WJ, Schalij MJ, Kirchhof CJ, Allessie MA
In isolated superfused left atria of the rabbit, inhomogeneity in conduction was quantified using the activation times measured with a high-density mapping system. At each recording site, the maximal difference with neighboring activation times (i.e., phase difference) was calculated. Local phase differences were plotted in a phase map, revealing the spatial distribution of inhomogeneities in conduction, and from each map a total index of inhomogeneity was calculated. During slow pacing (2 Hz) l... Abstract