abstract：:Effects of sublingual glyceryl trinitrate (GTN) were studied in ten patients without heart failure during diagnostic cardiac catheterisation following angiography. GTN caused substantial reduction in peak left ventricular and aortic pressure (19 mmHg) with lesser reduction in mean aortic pressure (9 mmHg) and no chang...

journal_title：Cardiovascular research

authors： Yaginuma T,Avolio A,O'Rourke M,Nichols W,Morgan JJ,Roy P,Baron D,Branson J,Feneley M

更新日期：1986-02-01 00:00:00

abstract：:In isolated electrically stimulated guinea pig papillary muscles tiapamil exerts a negative inotropic action that corresponds to its presumptive inhibitory effects on the slow-channel-mediated transmembrane Ca2+ influx. However, contractile depression is always accompanied by marked alterations of the normal Na+-carri...

journal_title：Cardiovascular research

authors： Späh F

更新日期：1986-01-01 00:00:00

abstract：:The role of mediators of inflammation in the pathogenesis and evolution of myocardial infarction has attracted increased interest as interventions which inhibit the inflammatory response after coronary artery occlusion have been shown to decrease infarct size. The distribution of fibrinogen and albumin in ischaemia my...

journal_title：Cardiovascular research

authors： Fishbein MC,Kulber D,Stancl M,Edwalds G

更新日期：1986-01-01 00:00:00

abstract：:There is evidence that catecholamines may promote the development of cardiac hypertrophy in hypertension. To test the hypothesis that adrenaline directly determines left ventricular mass, normotensive Wistar rats were made adrenaline-deficient by adrenalectomy and hypertensive by administration of glucocorticoid. Bloo...

journal_title：Cardiovascular research

authors： Burris JF,Waeber B,Brunner HR

更新日期：1985-12-01 00:00:00

abstract：:The afterload dependency of relaxation rate was reappraised in isolated canine hearts both in isovolumic and isobaric contractions by using the reliable exponential method in which the asymptote LV pressure (P chi) is variable. This method provided a closer correlation (r = 0.999 +/- 0.001) between the measured LV pre...

journal_title：Cardiovascular research

authors： Hori M,Inoue M,Fukunami M,Kitakaze M,Ishida Y,Tsujioka K,Nakajima S,Kitabatake A,Abe H

更新日期：1985-10-01 00:00:00

abstract：:The distribution of neuropeptide Y (NPY) in the rat cardiovascular system has been examined by radioimmunoassay, chromatographic analysis of tissue extracts, and immunocytochemistry. High concentrations of NPY were identified throughout the heart and within the major blood vessels of the rat in particular in the renal...

journal_title：Cardiovascular research

authors： Allen JM,Polak JM,Rodrigo J,Darcy K,Bloom SR

更新日期：1985-09-01 00:00:00

abstract：:Felodipine (4(2,3-dichlorophenyl)-1,4-dihydro-2, 6-dimethyl-3-ethoxycarbonyl-5-methoxycarbonyl pyridine)), a selective vasodilating anti-hypertensive drug, was used in the treatment of spontaneously hypertensive rats (SHRs) and age-matched Wistar-Kyoto rats (WKYs) from age 6 to 14 weeks, ie during the time of high blo...

journal_title：Cardiovascular research

authors： Nyborg NC,Mulvany MJ

更新日期：1985-09-01 00:00:00

abstract：:We studied the effects of intracoronary vasopressin on the relationship between pressure and flow in the coronary circulation of anaesthetised swine. In addition to measurements at control levels, diastolic pressure-flow relationships were constructed from steady-state points below a coronary pressure of 50 mmHg, wher...

journal_title：Cardiovascular research

authors： Pantely GA,Ladley HD,Anselone CG,Bristow JD

更新日期：1985-07-01 00:00:00

abstract：:Segments of saphenous vein from patients undergoing coronary artery by-pass graft surgery were frozen in liquid nitrogen immediately on dissection (control), after stripping of the adventitia and side branch ligation (manipulation), after distention with blood (distention), or at completion of the last proximal anasto...

journal_title：Cardiovascular research

authors： Angelini GD,Breckenridge IM,Butchart EG,Armistead SH,Middleton KM,Henderson AH,Newby AC

更新日期：1985-06-01 00:00:00

abstract：:Microelectrode recordings of skin nerve sympathetic activity were made in the median nerve supplying the right hand of nine patients with Raynaud's phenomenon and 10 control subjects. With subjects warmed up (finger temperature 33 to 34 degrees C) different manoeuvres were used to evoke strong, single sympathetic burs...

journal_title：Cardiovascular research

authors： Fagius J,Blumberg H

更新日期：1985-05-01 00:00:00

abstract：:To investigate cardiovascular changes in experimental acromegaly, a growth hormone-secreting tumour (MtT-W-15) was implanted in adult female rats. Somatic and tumour growth occurred steadily during the 8 week study period, as did an increase in serum growth hormone titre. Weight of left ventricle and right ventricle i...

journal_title：Cardiovascular research

authors： Penney DG,Dunbar JC Jr,Baylerian MS

更新日期：1985-05-01 00:00:00

abstract：:An isolated working rat heart preparation was used to characterise the temperature-dependency of the anti-ischaemic properties of nifedipine. In this study hearts were subjected to pre-ischaemic infusion with the St Thomas' cardioplegic solution with or without added nifedipine (0.075 mumol X litre-1). Hearts were the...

journal_title：Cardiovascular research

authors： Fukunami M,Hearse DJ

更新日期：1985-02-01 00:00:00

abstract：:Regional distribution of myocardial blood flow (MBF) was examined in eight normal and nine pulmonary artery banded (PAB) pigs before and during pacing induced tachycardia (heart rates: 175, 225 and 275 beats X min-1) as well as during iv adenosine infusion (1.5 mg X kg-1 X min-1; maximal coronary vasodilatation) using...

journal_title：Cardiovascular research

authors： Manohar M

更新日期：1985-02-01 00:00:00

abstract：:The potent anaphylatoxin C3a was measured in the peripheral blood of eleven patients receiving radiocontrast agents whilst undergoing coronary angiography. In seven patients C3a levels were raised during this procedure and in three of these the anaphylatoxin was increased between four and tenfold. In four patients C3a...

journal_title：Cardiovascular research

authors： Westaby S,Dawson P,Turner MW,Pridie RB

更新日期：1985-02-01 00:00:00

abstract：:By measuring the coronary sinus blood flow using the thermodilution technique the influence of "thermodilution catheter" withdrawal from the great cardiac vein to the ostium of the coronary sinus was investigated in 41 patients. In addition, the influence of normal and forced respiration on coronary sinus blood flow w...

journal_title：Cardiovascular research

authors： Bagger JP

更新日期：1985-01-01 00:00:00

abstract：:Impairment of contractile function and extent of release of several intracellular marker enzymes and DNA were studied in isolated perfused rat hearts after low-flow (0.16 ml . min-1) ischaemia followed by 2 h of reperfusion and after anoxia followed by 2 h of reoxygenation. After varying periods of ischaemia or anoxia...

journal_title：Cardiovascular research

authors： van der Laarse A,Altona JC,Zoet AC,Oemrawsingh P,van Dijkman PR

更新日期：1984-12-01 00:00:00

abstract：:This study has investigated the origin of the pulsatile expansion of the forearm recorded by the amplification of the pulsatile signal derived from a mercury in rubber plethysmograph. Venous occlusion to pressures of 40 mmHg had no effect on the amplitude of the volume pulse, suggesting that the volume pulse originate...

journal_title：Cardiovascular research

authors： Fitchett DH

更新日期：1984-11-01 00:00:00

abstract：:Cardiac hypertrophy was induced in rabbits at atmospheric pressure by exposing them to hypoxia equivalent to an altitude of 6000 m for 280 to 350 h. Intracellular action potentials were recorded from Purkinje cells, and from atrial and papillary muscles, contractions of which were also measured. Hearts from normoxic l...

journal_title：Cardiovascular research

authors： Dukes ID,Vaughan Williams EM

更新日期：1984-10-01 00:00:00

abstract：:The velocity of contraction has been reported to be more rapid in left atrium (LA) than left ventricle (LV), but the mechanics of contraction in these two chambers have not been compared under physiological conditions. Accordingly, sonomicrometer crystals and solid state pressure transducers were used to measure LV an...

journal_title：Cardiovascular research

authors： Goldman S,Olajos M,Morkin E

更新日期：1984-10-01 00:00:00

abstract：:The cardioprotective effects of mioflazine, a recently developed cardiovascular drug, were investigated in 41 anaesthetised open chest Beagle dogs subjected to 1 h normothermic global myocardial ischaemia. The severity of the model is evidenced by the finding that only one out of 20 control dogs could be weaned from e...

journal_title：Cardiovascular research

authors： Flameng W,Xhonneux R,Van Belle H,Borgers M,Van de Water A,Wouters L,Wijnants J,Thoné F,Van Daele P,Janssen PA

更新日期：1984-09-01 00:00:00

abstract：:To provide further evidence that the veratrum alkaloids' mechanical, positive inotropic effect and not their chemical depolarising action predominates in initiating the left ventricular mechanoreceptor (including the Bezold) reflex the effect of intracoronary KCl, a chemical depolarising agent like the veratrum alkalo...

journal_title：Cardiovascular research

authors： Estrin JA,Wahler GM,Booth AM,Swayze CR,Fox IJ

更新日期：1984-08-01 00:00:00

abstract：:Isolated, buffer perfused guinea pig hearts were used to study the effects of sotalol on arrhythmias and electrophysiology during 30 min of myocardial ischaemia, induced by reducing coronary flow to 10% of control, and subsequent reperfusion. Action potentials were recorded using the floating microelectrode technique ...

journal_title：Cardiovascular research

authors： Culling W,Penny WJ,Sheridan DJ

更新日期：1984-07-01 00:00:00

abstract：:Myocardial capillary permeability was determined in 20 dogs by applying a new method which resembles the tissue-uptake technique. The method consisted of a bolus injection of 51Cr-EDTA into the left atrium, determination of the average arterial tracer concentration and subsequent assay of myocardial tissue activity 10...

journal_title：Cardiovascular research

authors： Amtorp O,Eliasen P,Abildgaard U,Haunsø S

更新日期：1984-05-01 00:00:00

abstract：:Data from experiments in isolated cardiac muscle preparations indicate that adenosine in high concentration (10(-3) mol X litre-1) exerts a negative inotropic effect on the myocardium under basal conditions. The following study was performed to test the hypothesis that adenosine exerts a similar negative inotropic eff...

journal_title：Cardiovascular research

authors： Gewirtz H,Salvo A,Sun Y,Most AS

更新日期：1984-04-01 00:00:00

abstract：:When the vagus nerves are stimulated with one burst of pulses per minute, but each burst is placed at a different time in the cardiac cycle, a "vagal effect curve" can be derived which displays the changes in cardiac cycle length (CCL) as a function of the elapsed time from the stimulus. This curve consists of a prima...

journal_title：Cardiovascular research

authors： Wallick DW,Valencic F,Fratianne RB,Levy MN

更新日期：1984-02-01 00:00:00

abstract：:Computation of indices of regional myocardial contractility such as the shortening, or the work done by or on a segment of myocardium in a single cardial cycle is tedious to perform manually, and complex interfacing and software is needed for digital computation. We describe the principles of an on-line, analogue devi...

journal_title：Cardiovascular research

authors： Lab MJ,Gartside I,Wassermann S

更新日期：1983-12-01 00:00:00

abstract：:In order to evaluate clinically recorded jugular vein pulses it is necessary to understand the transmission process of the right atrial pressure pulse through the caval veins up to the jugular veins. The transmission speed at distinct points of the venous pressure curve was studied in the superior vena cava of 20 anae...

journal_title：Cardiovascular research

authors： Minten J,Van de Werf F,Aubert AE,Kesteloot H,De Geest H

更新日期：1983-10-01 00:00:00

abstract：:The effects of repeated (10 X), brief Ca2+-free perfusions (20 to 120 s) on myocardial contractility, coronary flow and release of cellular constituents of isolated rat heart were investigated. Ten successive Ca2+-deprivations of 20 or 40 s had no irreversible influences on cardiac performance. Ca2+-deprivations, howe...

journal_title：Cardiovascular research

authors： Koomen JM,Noordhoek J,Zimmerman AN

更新日期：1983-08-01 00:00:00

abstract：:The kinetics of onset of rate-dependent depression of maximum rate of depolarisation (Vmax) of guinea-pig ventricular action potentials were studied for nine Class I anti-arrhythmic drugs using standard microelectrode techniques. The drugs were found to fall into three well-demarcated subgroups with "fast" (lignocaine...

journal_title：Cardiovascular research

authors： Campbell TJ

更新日期：1983-06-01 00:00:00

abstract：:The voltage- and rate-dependence of the depression of the maximum rate of depolarisation (Vmax) by therapeutic concentrations of flecainide and lorcainide were studied in guinea-pig ventricle by standard microelectrode techniques. At normal resting potentials the drugs produced only minor depression of Vmax in the abs...

journal_title：Cardiovascular research

authors： Campbell TJ,Vaughan Williams EM

更新日期：1983-05-01 00:00:00

abstract：:This study concerns the longterm effects of both epicardial and endocardial cryosurgery with particular reference to the coronary arteries. Sheep were subjected to epicardial cryosurgery without cardiopulmonary bypass, and to endocardial application with bypass. In both groups the heart was kept beating throughout the...

journal_title：Cardiovascular research

authors： Misaki T,Allwork SP,Bentall HH

更新日期：1983-02-01 00:00:00

abstract：:The effects of adrenaline on kinetically-distinct compartments of exchangeable calcium in the spontaneously-beating perfused rat heart were investigated under steady-state conditions using a 45Ca2+ outflow technique together with a nonlinear least-squares curve fitting procedure and 51Cr-EDTA to monitor the loss of fr...

journal_title：Cardiovascular research

authors： Lamont SV,Barritt GJ

更新日期：1983-02-01 00:00:00

abstract：:An oscillatory current (Ios) can be recorded after depolarising clamps of a given amplitude and duration. To determine whether Ios depends on other currents activated during the clamp, the Ios was investigated in the absence and in the presence of 4-aminopyridine (4-AP) and cesium (Cs). The following results were obta...

journal_title：Cardiovascular research

authors： Mugelli A

更新日期：1982-11-01 00:00:00

abstract：:Myocardial lactate content and simultaneous evolution of a lactate arteriovenous gradient associated with incomplete obstruction of the left coronary bed were studied in dog hearts. Samples of blood were taken from a peripheral artery and the coronary sinus; transmural samples of myocardial tissue were obtained from t...

journal_title：Cardiovascular research

authors： Al Makdessi S,Andrieu JL,Chah QT,Tuduri AJ,Faucon G

更新日期：1982-10-01 00:00:00

abstract：:A diminished sympathetic activity has been related to training bradycardia seen at rest and during exercise. In order to evaluate if changes in heart adrenergic receptors can be one of the mechanisms by which the sympathetic responsiveness could be decreased by physical training, the number and affinity of beta-adrene...

journal_title：Cardiovascular research

authors： Sylvestre-Gervais L,Nadeau A,Nguyen MH,Tancrède G,Rousseau-Migneron S

更新日期：1982-09-01 00:00:00

abstract：:Eighty-one consecutive patients representing a wide clinical spectrum were studied to assess the degree of limitation of the atrial extrastimulus technique for measurement of atrioventricular node refractoriness; and, to determine the relationship between conductivity and functional refractoriness of the atrioventricu...

journal_title：Cardiovascular research

authors： Wyse DG

更新日期：1982-08-01 00:00:00

abstract：:Labetolol, which blocks both alpha and beta-adrenoceptors, was found to have direct actions on cardiac muscle which could themselves be antiarrhythmic. It depressed the maximum rate of depolarisation, and reduced conduction velocity, in atrial and ventricular muscle and in Purkinje cells, implying restriction of fast ...

journal_title：Cardiovascular research

authors： Vaughn Williams EM,Millar JS,Campbell TJ

更新日期：1982-05-01 00:00:00

abstract：:Attempts were made to demonstrate release of vasoactive substances from the heart during coronary occlusion (for 60 min) and reperfusion (for 60 min), and to clarify the pathophysiological significance of them. Vasoactive substances were detected by superfusion of rabbit aortic and dog coronary arterial strips with gr...

journal_title：Cardiovascular research

authors： Tanabe M,Terashita ZI,Fujiwara S,Shimamoto N,Goto N,Nishikawa K,Hirata M

更新日期：1982-02-01 00:00:00

abstract：:We tested the hypothesis that visualisation of defects on thallium-201 (201Tl) myocardial perfusion images (MPI) depends on the duration of the ischaemic state between 201Tl injection and the time of reperfusion of an occluded coronary artery. Praecordial imaging with a gamma camera was performed in 24 anaesthetised, ...

journal_title：Cardiovascular research

authors： Patterson RE,Halgash DA,Horowitz SF,Miceli K,Eng C,Goldsmith SJ

更新日期：1982-01-01 00:00:00

abstract：:Supravalvar aortic banding was performed in 6 to 12 week puppies. Sixteen animals were studied 7.3 (3.5 to 10) months later, closed-chested under morphine-chloralose, catheters being positioned in the great vessels and heart, including the left atrium for microsphere injection. Compared with 11 controls, eight dogs de...

journal_title：Cardiovascular research

authors： Einzig S,Leonard JJ,Tripp MR,Lucas RV,Swayze CR,Fox IJ

更新日期：1981-12-01 00:00:00