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Leht 1 alates 17 tulemused
Relationship between stroke volume and pneumocardiogram.
Ainult registreeritud kasutajad saavad artikleid tõlkida
Logi sisse
The intratracheal pressure oscillations produced by the heartbeat, called the pneumocardiogram, were recorded in 15 dogs. It was found that a linear relationship existed between the amplitude of the major negative deflection of the pneumocardiogram and the cardiac stroke volume, the latter
Endovascular treatment of experimental aneurysms with liquid polymers: the protective potential of stents.
Ainult registreeritud kasutajad saavad artikleid tõlkida
Logi sisse
Liquid polymers have previously been used to treat experimental and human aneurysms. However, the delivery of a liquid embolic material into the cerebral circulation involves a high risk of irreversible vessel occlusion and stroke. To evaluate methods for the safe and effective treatment of
Effects of the pericardium on left ventricular diastolic filling and systolic performance early after cardiac operations.
Ainult registreeritud kasutajad saavad artikleid tõlkida
Logi sisse
To determine whether closure of the pericardium after cardiac operations affects the filling characteristics and systolic performance of the left ventricle, we measured left ventricular volume, pressure, cardiac index, and stroke work index in 10 patients between 11 and 15 hours after cardiac
Right ventricular pressure-volume loops using simultaneous radionuclide angiography with a multiwire gamma camera and right heart catheterization.
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Logi sisse
BACKGROUND
The purpose of this study was to generate right ventricular (RV) pressure-volume loops (PVLs) from time-activity curves obtained by first-pass radionuclide angiography (RNA) and RV pressures obtained by right heart catheterization.
RESULTS
Short-lived tantalum 178 was used to obtain
Effects of heart rate augmentation on left ventricular volumes and cardiac output of the transplanted human heart.
Ainult registreeritud kasutajad saavad artikleid tõlkida
Logi sisse
The response of the donor left ventricle to atrial pacing was measured in 11 patients 12 to 64 days after cardiac transplantation. At operation seven miniature tantalum coils were placed into the midwall of the donor left ventricle so as to outline the ventricle in a 30 degrees right anterior
Cardiovascular responses to handgrip isometric exercise in patients following cardiac transplantation.
Ainult registreeritud kasutajad saavad artikleid tõlkida
Logi sisse
The effects of cardiac denervation on the hemodynamic responses to isometric handgrip contraction were studied in patients 1--5 years after allograft cardiac transplantation. The objective of these studies was to determine the role of cardioacceleration and myocardial contractility on the increase
Comparison of ventricular function in atrial rate adaptive versus dual chamber rate adaptive pacing during exercise.
Ainult registreeritud kasutajad saavad artikleid tõlkida
Logi sisse
The hemodynamic effects of two different pacing modes--rate adaptive atrial (AAIR) versus dual chamber (DDDR) pacing--were assessed in 12 patients with DDDR pacemakers during upright bicycle exercise first-pass radionuclide angiography using a multiwire gamma camera with tantalum-178 as a tracer.
Right ventricular dynamics during left ventricular assistance in closed-chest dogs.
Ainult registreeritud kasutajad saavad artikleid tõlkida
Logi sisse
To determine the effects of left ventricular assist device (LVAD) support on global right ventricular (RV) systolic mechanics, 8 closed-chest, conscious, sedated dogs were studied after placement of an LVAD (left ventricle to femoral artery bypass) and implantation of 27 tantalum markers into the
Diastolic dysfunction during acute cardiac allograft rejection.
Ainult registreeritud kasutajad saavad artikleid tõlkida
Logi sisse
Left ventricular diastolic function was evaluated in 41 heart transplant patients during acute rejection by an analysis of echocardiograms and surgically implanted intramyocardial tantalum markers. In 35 patients, isovolumic relaxation time was calculated from M-mode tracings selected from
Experimental evaluation of different chordal preservation methods during mitral valve replacement.
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Logi sisse
During chordal-sparing mitral valve replacement (MVR), some recommend anatomic reattachment of the anterior leaflet chordae to the anterior annulus; others advocate shifting the chordae to the posterior annulus. To compare the results of these techniques with those of conventional MVR (total chordal
Effects of intravenous verapamil on left ventricular systolic function and diastolic filling dynamics in patients with coronary artery disease: analysis of intramyocardial markers.
Ainult registreeritud kasutajad saavad artikleid tõlkida
Logi sisse
Left ventricular (LV) intramyocardial markers (MM) were used to study the effects of intravenous verapamil on LV pump function and diastolic filling dynamics. Verapamil (0.1 mg/kg bolus followed by 0.005 mg/kg/min) was administered to 10 patients with severe coronary artery disease 4 years after
Asynergy of right ventricular wall motion in man.
Ainult registreeritud kasutajad saavad artikleid tõlkida
Logi sisse
Canine studies have shown a correlation between instantaneous segmental lengths in the right ventricular free wall and chamber volume, pressure, and stroke work. To determine whether such correlations exist in intact man, we studied the temporal relationships between chord dynamics in various
Mitral valve replacement in dilated canine hearts with chronic mitral regurgitation. Importance of the mitral subvalvular apparatus.
Ainult registreeritud kasutajad saavad artikleid tõlkida
Logi sisse
The importance of the mitral subvalvular apparatus in terms of left ventricular (LV) mechanics and energetic efficiency in the chronically dilated canine heart was assessed in nine dogs with surgically induced mitral regurgitation. Miniature radiopaque tantalum markers were implanted into the
Left ventricular mechanics and energetics in the dilated canine heart: acute versus chronic mitral regurgitation.
Ainult registreeritud kasutajad saavad artikleid tõlkida
Logi sisse
The effects of volume overload associated with mitral regurgitation on left ventricular systolic mechanics, energetics, mechanical to external stroke work efficiency, and ventriculoarterial coupling were examined in 11 conscious, closed-chest dogs. Miniature radiopaque tantalum markers were
Effects of left ventricular support on right ventricular mechanics during experimental right ventricular ischemia.
Ainult registreeritud kasutajad saavad artikleid tõlkida
Logi sisse
BACKGROUND
Left ventricular (LV) assist device (LVAD) support has been associated with right ventricular (RV) failure in humans, but the etiology remains unknown. Mechanical LV support apparently does not induce RV pump failure in normal hearts, but controlled studies of LV assistance in hearts with
Kõige täiuslikum ravimtaimede andmebaas, mida toetab teadus
- Töötab 55 keeles
- Taimsed ravimid, mida toetab teadus
- Maitsetaimede äratundmine pildi järgi
- Interaktiivne GPS-kaart - märgistage ürdid asukohas (varsti)
- Lugege oma otsinguga seotud teaduspublikatsioone
- Otsige ravimtaimi nende mõju järgi
- Korraldage oma huvisid ja hoidke end kursis uudisteuuringute, kliiniliste uuringute ja patentidega
Sisestage sümptom või haigus ja lugege ravimtaimede kohta, mis võivad aidata, tippige ürdi ja vaadake haigusi ja sümptomeid, mille vastu seda kasutatakse.
* Kogu teave põhineb avaldatud teaduslikel uuringutel
