Results 1 to 10 of about 312,190 (321)

Pericardial and Ventricular Pressure [PDF]

open access: bronzeCirculation Research, 1960
In anesthetized open-chest and closed-chest dogs subjected to plethora and hemorrhage, pressures were measured simultaneously in the right atrium, right and left ventricles, and the pleural and pericardial spaces. It was found that an increase in ventricular end-diastolic pressure above approximately 1 mm.
E. A. Rhode   +3 more
openaire   +3 more sources

Human Stem Cell-Derived Cardiomyocytes Integrate Into the Heart of Monkeys With Right Ventricular Pressure Overload. [PDF]

open access: yesCell Transplant
Cardiac ventricular pressure overload affects patients with congenital heart defects and can cause cardiac insufficiency. Grafts of stem cell–derived cardiomyocytes are proposed as a complementary treatment to surgical repair of the cardiac defect ...
Scholz J   +24 more
europepmc   +2 more sources

Evaluation of right heart function changes in patients with pulmonary hypertension via two-dimensional speckle tracking imaging: a retrospective study

open access: yesAnnals of Medicine, 2023
Objective: To realize the changes in pulmonary hypertension (PH) patients’ right ventricular function.Methods: A total number of 74 patients with PH were included, and the parameters of standard echocardiographic were measured as well as the strain of ...
Zhi-fen Wang   +6 more
doaj   +1 more source

Mitigating effect of tanshinone IIA on ventricular remodeling in rats with pressure overload-induced heart failure [PDF]

open access: yesActa Cirúrgica Brasileira, 2019
Purpose To investigate the effect of tanshinone IIA (TIIA) on ventricular remodeling in rats with pressure overload-induced heart failure. Methods Pressure overload-induced heart failure model (abdominal aortic coarctation) was established in 40 rats ...
Xu Li   +4 more
doaj   +1 more source

Influence of Right Ventricular Filling Pressure on Left Ventricular Pressure and Dimension [PDF]

open access: yesCirculation Research, 1974
The effects of alterations in the diastolic filling pressure of the right ventricle on left ventricular (LV) geometry and filling pressure were studied in six isolated, supported canine hearts. This experimental preparation permitted graded increments in right ventricular (RV) end-diastolic pressure while LV cardiac output, heart rate, and mean aortic ...
Juan R. Serur   +4 more
openaire   +3 more sources

Partial Obstruction of Ventricular Catheters Affects Performance in a New Catheter Obstruction Model of Hydrocephalus

open access: yesChildren, 2022
Objective: One of the major causes of cerebral ventricular shunt failure is proximal catheter occlusion. We describe a novel ventricular cerebrospinal fluid (CSF) flow replicating system that assesses pressure and flow responses to varying degrees of ...
Seunghyun Lee   +5 more
doaj   +1 more source

Postextrasystolic Ventricular Pressure Responses [PDF]

open access: yesCirculation, 1971
The peak postextrasystolic ventricular pressure was examined in tracings obtained during routine catheterization of the right and left ventricles in 252 cases. The invariable response in the apparently "normal" left ventricle was a fall or no change in peak systolic pressure, whereas in the obstructed left ventricle, the failed left ventricle, the ...
Elliot Chesler   +2 more
openaire   +3 more sources

Levosimendan, milrinone, and dobutamine in experimental acute pulmonary embolism

open access: yesPulmonary Circulation, 2021
Acute pulmonary embolism is a frequent condition in emergency medicine and potentially fatal. Cause of death is right ventricular failure due to increased right ventricular afterload from both pulmonary vascular obstruction and vasoconstriction ...
Mads D. Lyhne   +5 more
doaj   +1 more source

Predictive Value of Right Ventricular Pressure Measurement for Residual Pulmonary Stenosis in Tetralogy Repair

open access: yesSiriraj Medical Journal, 2022
Objective: The long-term outcome of tetralogy of Fallot repair depends on an adequate relief of right ventricular outflow tract obstruction and preservation of the pulmonary valve function.
Prompak Nitayavardhanam   +1 more
doaj   +1 more source

Ventricular and Atrial Pressure—Volume Loops: Analysis of the Effects Induced by Right Centrifugal Pump Assistance

open access: yesBioengineering, 2022
The main indications for right ventricular assist device (RVAD) support are right heart failure after implantation of a left ventricular assist device (LVAD) or early graft failure following heart transplantation.
Beatrice De Lazzari   +6 more
doaj   +1 more source

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