6125 results
Cited 25 times since 1993 (0.8 per year)
source: EuropePMC
European heart journal,
Volume 14, Issue 1, 1 1 1993, Pages 53-56
Dipyridamole thallium-201 scintigraphy for improved detection of left anterior descending coronary artery stenosis in patients with left bundle branch block.
Jukema JW, van der Wall EE, van der Vis-Melsen MJ, Kruyswijk HH, Bruschke AV
In patients with left bundle branch block (LBBB) undergoing thallium-201 exercise scintigraphy septal perfusion defects are frequently observed irrespective of the presence or absence of coronary artery disease. Consequently, in these patients the specificity for detecting stenoses in the left anterior descending coronary artery (LAD) by thallium-201 scintigraphy is relatively low. It has been hypothesized that pharmacological vasodilation would result in higher specificity than conventional exe...
Abstract
Cited 6 times since 1993 (0.2 per year)
source: EuropePMC
Arteriosclerosis and thrombosis : a journal of vascular biology,
Volume 13, Issue 1, 1 1 1993, Pages 78-83
Potential of 99mTc-LDLs labeled by two different methods for scintigraphic detection of experimental atherosclerosis in rabbits.
Atsma DE, Feitsma RI, Camps J, van't Hooft FM, van der Wall EE, Nieuwenhuizen W, Pauwels EK
In this study we evaluated two different 99mTc-labeling techniques to produce 99mTc-low density lipoprotein (99mTc-LDL) suitable for the scintigraphic delineation of experimental atherosclerotic lesions. The two methods are 1) a procedure that uses stannous chloride and sodium borohydride (borohydride method) and 2) a procedure that uses sodium dithionite as a reducing agent and that has been successfully applied in previous scintigraphic atherosclerosis detection (dithionite method). 99mTc-LDL...
Abstract
Clinical nutrition (Edinburgh, Scotland),
Volume 11, Issue 6, 1 1 1992, Pages 376
Correspondence.
Verbeek MJ, van der Heijden A, Schreurs VV, Akkermans LM, Vos A
Abstract
Cited 125 times since 1992 (3.9 per year)
source: EuropePMC
Journal of virology,
Volume 66, Issue 11, 1 1 1992, Pages 6294-6303
Structural proteins of equine arteritis virus.
de Vries AA, Chirnside ED, Horzinek MC, Rottier PJ
We have recently shown that the genome of equine arteritis virus (EAV) contains seven open reading frames (ORFs). We now present data on the structural proteins of EAV and the assignment of their respective genes. Virions are composed of a 14-kDa nucleocapsid protein (N) and three membrane proteins designated M, GS, and GL. M is an unglycosylated protein of 16 kDa, and GS and GL are N-glycosylated proteins of 25 and 30 to 42 kDa, respectively. The broad size distribution of GL results from heter...
Abstract
Cited 13 times since 1992 (0.4 per year)
source: EuropePMC
European heart journal,
Volume 13 Suppl E, 1 1 1992, Pages 28-34
Single and dual excitation of the conductance-volume catheter analysed in a spheroidal mathematical model of the canine left ventricle.
Steendijk P, van der Velde ET, Baan J
The conductance method employs a multi-electrode catheter to generate an electrical field and measure intracavitary segmental conductances. Left ventricular (LV) volumes are calculated using an algorithm which assumes the electrical field to be homogeneous. This assumption may be violated leading to a non-linear relation between conductance-derived and true volumes. In addition, this relation may vary between segments. A new method is introduced which uses a more homogeneous field. Volume estima...
Abstract
Cited 43 times since 1992 (1.3 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
Cited 30 times since 1992 (0.9 per year)
source: EuropePMC
European heart journal,
Volume 13 Suppl E, 1 1 1992, Pages 2-6
Ventricular pressure-volume relations in vivo.
Baan J, van der Velde ET, Steendijk P
A number of fundamental mechanical properties of cardiac muscle as well as of the total ventricle are discussed. These include: Starling's law, shortening deactivation, homeometric autoregulation, and so-called hyperactivation associated with a small amount of ejection. Whenever appropriate, muscle properties are related to those of the intact ventricle. The phenomenon of load-dependence of the end-systolic pressure-volume relationship (ESPVR) receives particular attention and is placed wit...
Abstract
Cited 11 times since 1992 (0.3 per year)
source: EuropePMC
Journal of vascular research,
Volume 29, Issue 6, 1 1 1992, Pages 426-434
Thrombogenicity and intimal hyperplasia after conventional and thermal balloon dilation in normal rabbit iliac arteries.
van Erven L, Velema E, Bos AN, Post MJ, Borst C
Acute occlusion and restenosis are the major complications of percutaneous transluminal coronary balloon angioplasty. Application of heat during balloon dilation was postulated to reduce these complications. We evaluated thrombogenicity and intimal hyperplasia of normal rabbit iliac arteries after conventional (37 degrees C) and thermal balloon dilation. Thermal dilation was performed with a radio-frequency-heated balloon, provided with three thermocouples attached to the inside of the balloon s...
Abstract
Cited 6 times since 1992 (0.2 per year)
source: EuropePMC
European heart journal,
Volume 13 Suppl E, 1 1 1992, Pages 15-21
Left ventricular segmental volume by conductance catheter and Cine-CT.
van der Velde ET, van Dijk AD, Steendijk P, Diethelm L, Chagas T, Lipton MJ, Glanz SA, Baan J
The ability of the conductance catheter method to measure left ventricular segmental and total volume was evaluated by comparison with the Cine-CT technique. In the seven dogs studied, 19 conductance catheter and simultaneous Cine-CT runs were obtained. High correlation coefficients were found for total volume and segmental volumes, except in the basal segment. However, in most cases there was a significant variability in slope and intercept between animals. Both methods are promising tools for...
Abstract
Cited 2 times since 1992 (0.1 per year)
source: EuropePMC
Der Urologe. Ausg. A,
Volume 31, Issue 6, 1 1 1992, Pages 378-383
[Obstructive uropathy after kidney transplantation. Experiences with endourologic incision of ureteral stenoses].
Schneider AW, Meyer-Moldenhauer WH, Conrad S, Otto U, Klosterhalfen H
Between 1985 und March 1991 we have managed 8 upper urinary tract obstructions in kidney transplants using an endourological approach. After a graft rejection was excluded an obstruction was initially diagnosed by nephrosonography and further confirmed by IVP or antegrade pyelography. To investigate the urodynamic relevance of the stenosis, all patients underwent preoperative diuretic isotope renography. In all cases a percutaneous pyelostomy was done to preserve renal function. 7 of these 8 pat...
Abstract
Cited 8 times since 1992 (0.2 per year)
source: EuropePMC
European heart journal,
Volume 13 Suppl E, 1 1 1992, Pages 40-46
The end-systolic pressure-volume relationship in young animals using the conductance technique.
Teitel DF, Klautz RJ, Cassidy SC, Steendijk P, van der Velde ET, van Bel F, Baan J
Evaluation of ventricular performance by the end-systolic pressure-volume relationship (ESPVR) has been extensively performed in the adult heart using the conductance technique. We undertook this study to validate the conductance technique and to generate ESPVRs in the small heart. To validate the technique, we simultaneously measured left ventricular volume by the conductance catheter and biplane cineangiography in nine piglets during changes in volume and contractility. Raw conductance volumes...
Abstract
Cited 18 times since 1992 (0.6 per year)
source: EuropePMC
American heart journal,
Volume 124, Issue 5, 1 1 1992, Pages 1397-1399
Pseudoaneurysm of a saphenous vein coronary artery bypass graft with a fistula draining into the right atrium.
Jukema JW, van Dijkman PR, van der Wall EE
Abstract
Cited 3 times since 1992 (0.1 per year)
source: EuropePMC
The Journal of thoracic and cardiovascular surgery,
Volume 104, Issue 4, 1 1 1992, Pages 1053-1059
Mid-infrared pulsed laser ablation of the arterial wall. Mechanical origin of "acoustic" wall damage and its effect on wall healing.
van Erven L, van Leeuwen TG, Post MJ, van der Veen MJ, Velema E, Borst C
Pulsed mid-infrared lasers are an alternative to excimer lasers for transluminal angioplasty. The mid-infrared lasers, however, were reported to produce "acoustic" wall damage that might impair the immediate and long-term results. To study the immediate and long-term effects on the arterial wall, 184 craters (1 mm diameter and 1 mm depth) were produced perpendicular to the intimal lining in the thoracic aortas of pigs. Three types of craters were evaluated: Ho-YSGG laser-induced (lambd...
Abstract
Cited 32 times since 1992 (1 per year)
source: EuropePMC
Circulation research,
Volume 71, Issue 2, 1 1 1992, Pages 385-392
Cultured rat aortic vascular smooth muscle cells digest naturally produced extracellular matrix. Involvement of plasminogen-dependent and plasminogen-independent pathways.
Sperti G, van Leeuwen RT, Quax PH, Maseri A, Kluft C
Vascular smooth muscle (VSM) cell migration and proliferation play a major role in the development of atherosclerotic lesions, graft occlusion, and restenosis after angioplasty. Cell migration implies the digestion of the surrounding extracellular matrix. Cell-associated proteolysis has been extensively studied in neoplastic and inflammatory cells, but very little is known about the proteolytic properties of VSM. We have evaluated the ability of rat cultured VSM cells to solubilize [3H]amino aci...
Abstract
Cited 69 times since 1992 (2.1 per year)
source: EuropePMC
Journal of the American College of Cardiology,
Volume 19, Issue 7, 1 1 1992, Pages 1610-1618
Origin of arterial wall dissections induced by pulsed excimer and mid-infrared laser ablation in the pig.
van Leeuwen TG, van Erven L, Meertens JH, Motamedi M, Post MJ, Borst C
To study adjacent tissue damage after delivery of holmium, thulium and excimer laser pulses, porcine thoracic aortas were irradiated in vivo. After 3 days, microscopic analysis of 67 craters produced by all three lasers demonstrated large dissections extending from the craters. The mean diameter of the dissections was smaller for excimer-induced craters (1.38 +/- 0.42 mm; n = 22) than for holmium-induced (2.7 +/- 0.87 mm; n = 22) and thulium-induced (2.37 +/- 0.42 mm; n = 14) craters (p less tha...
Abstract
Cited 20 times since 1992 (0.6 per year)
source: EuropePMC
Developmental biology,
Volume 151, Issue 1, 1 1 1992, Pages 166-175
Modulation of activities and RNA level of the components of the plasminogen activation system during fusion of human myogenic satellite cells in vitro.
Quax PH, Frisdal E, Pedersen N, Bonavaud S, Thibert P, Martelly I, Verheijen JH, Blasi F, Barlovatz-Meimon G
Primary cultures of human myogenic stem cells (satellite cells) mimic myogenic differentiation. During this process, the expression of the components of the plasminogen activation system underwent modulation. Activities and mRNA levels of tissue-type and urokinase-type plasminogen activator were increased in a reproducible pattern during differentiation. A modulation of the mRNA level of PAI-2 was also observed. Human satellite cells expressed a urokinase receptor and also the mRNA level of this...
Abstract
Analytical and quantitative cytology and histology,
Volume 14, Issue 2, 1 1 1992, Pages 120-128
Prognostic value of morphometry in acute lymphoblastic leukemia of childhood.
Jukema JW, van Diest PJ, de Waal FC, Baak JP
The prognostic value of morphometric features was studied in a group of 33 children with acute lymphoblastic leukemia (ALL) and compared with clinical and hematologic parameters. Air dried, May-Grünwald-Giemsa-stained specimens were prepared from iliac crest biopsies, and for each patient, 150 blasts and their nuclei were selected according to a stratified selection method and measured on a graphic tablet system. Univariate overall survival analysis showed the French-American-British (FAB) class...
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
Deutsche medizinische Wochenschrift (1946),
Volume 117, Issue 9, 1 1 1992, Pages 337-340
[Thrombocytopenia in digitoxin poisoning].
Schneider AW, Gilfrich HJ, Fechler L
Because she felt unwell, an 80-year-old woman who was receiving treatment with digitoxin (0.07 mg daily) raised the dose on her own initiative to twice or three times the previous level. She then experienced faintness, visual abnormalities and bradyarrhythmia (rate about 40/min). The ECG showed 2 degrees AV block. The digitoxin level was 70.8 ng/ml--far above the upper limit of the therapeutic range (7.5-25 ng/ml). One striking abnormality was thrombocytopenia (33,000/microliters), though the wh...
Abstract
Cited 12 times since 1992 (0.4 per year)
source: EuropePMC
Ultrasound in medicine & biology,
Volume 18, Issue 5, 1 1 1992, Pages 441-449
Cerebral blood flow velocity: the influence of myocardial contractility on the velocity waveform of brain supplying arteries.
Van Bel F, Steendijk P, Teitel DF, de Winter JP, Van der Velde ET, Baan J
Indices of Doppler-derived velocity waveforms of arteries perfusing the brain are used as relative measures of neonatal brain blood flow. Using a dog model, we investigated the influence of changes in myocardial contractility, induced by dobutamine, on the blood flow velocity waveform of the vertebral artery. The following indices of the velocity waveform were investigated during control states and during 5 or 10 micrograms/kg/min dobutamine infusion: peak systolic flow velocity (PSFV), temporal...
Abstract
