Filtered By:
Specialty: Cardiology
Procedure: Pulmonary Artery Catheterization

This page shows you your search results in order of date. This is page number 4.

Order by Relevance | Date

Total 57 results found since Jan 2013.

Effects of milrinone and epinephrine or dopamine on biventricular function and hemodynamics in an animal model with right ventricular failure after pulmonary artery banding
This study evaluated the effect of milrinone alone and in combination with epinephrine or dopamine on hemodynamics, ventricular performance, and the interventricular relationship. RV failure was induced in 21 Danish landrace pigs by pulmonary artery banding. After 10 wk, animals were reexamined using biventricular pressure-volume conductance catheters. The maximum pressure in the RV increased by 113% (P < 0.0001) and end-diastolic volume by 43% (P < 0.002), while left ventricular (LV) pressure simultaneously decreased (P = 0.006). Concomitantly, mean arterial pressure (MAP; –16%, P = 0.01), cardiac index (CI; &...
Source: AJP: Heart and Circulatory Physiology - July 1, 2015 Category: Cardiology Authors: Hyldebrandt, J. A., Siven, E., Agger, P., Frederiksen, C. A., Heiberg, J., Wemmelund, K. B., Ravn, H. B. Tags: INTEGRATIVE CARDIOVASCULAR PHYSIOLOGY AND PATHOPHYSIOLOGY Source Type: research

Association of Right Atrial Mechanics with Hemodynamics and Physical Capacity in Patients with Idiopathic Pulmonary Arterial Hypertension: Insight from a Single‐Center Cohort in Northern Sweden
ConclusionRight atrium mechanics not only correlate well with RHC‐obtained hemodynamics, but also correlate with functional capacity in treatment‐naive IPAH.
Source: Echocardiography - June 1, 2015 Category: Cardiology Authors: Samir Kanti Saha, Stefan Söderberg, Per Lindqvist Tags: Original Investigation Source Type: research

Differential Hemodynamic Effects of Exercise and Volume Expansion in People With and Without Heart Failure Original Articles
Conclusions— Exercise elicits greater pulmonary capillary wedge pressure elevation compared with saline in HFpEF but not controls, suggesting that hemodynamic stresses beyond passive stiffness and increased venous return explain the development of pulmonary venous hypertension in HFpEF. Exercise testing is more sensitive than saline loading to detect hemodynamic derangements indicative of HFpEF. Clinical Trial Registration— URL: http://www.clinicaltrials.gov. Unique identifier: NCT01418248.
Source: Circulation: Heart Failure - January 20, 2015 Category: Cardiology Authors: Andersen, M. J., Olson, T. P., Melenovsky, V., Kane, G. C., Borlaug, B. A. Tags: Congestive, Exercise testing, Other diagnostic testing Original Articles Source Type: research

RV-pulmonary arterial coupling predicts outcome in patients referred for pulmonary hypertension
Conclusions The adequacy of RV functional adaptation to afterload predicts survival in patients referred for PH. Whether this can simply be evaluated using RV volumetric imaging will require additional confirmation.
Source: Heart - December 12, 2014 Category: Cardiology Authors: Vanderpool, R. R., Pinsky, M. R., Naeije, R., Deible, C., Kosaraju, V., Bunner, C., Mathier, M. A., Lacomis, J., Champion, H. C., Simon, M. A. Tags: Hypertension Pulmonary vascular disease Source Type: research

Cardiac Remodeling in Response to 1 Year of Intensive Endurance Training.
CONCLUSIONS: -One year of prolonged and intensive endurance training leads to cardiac morphologic adaptations in previously sedentary young subjects similar to those observed in elite endurance athletes; however it is not sufficient to achieve similar levels of cardiac compliance and performance. Contrary to conventional thinking, the left ventricle responds to exercise with initial concentric not eccentric remodeling during the first 6-9 months after commencement of endurance training depending on the duration and intensity of exercise. Thereafter, the left ventricle dilates and restores the baseline mass to volume ratio....
Source: Circulation - October 3, 2014 Category: Cardiology Authors: Arbab-Zadeh A, Perhonen M, Howden E, Peshock RM, Zhang R, Adams-Huet B, Haykowsky MJ, Levine BD Tags: Circulation Source Type: research

Newer methods of cardiac output monitoring.
Abstract Cardiac output (CO) is the volume of blood ejected by each ventricle per minute and is the product of stroke volume and heart rate. CO can thus be manipulated by alteration in heart rate or rhythm, preload, contractility and afterload. Moreover it gives important information about tissue perfusion and oxygen delivery. CO can be measured by various methods and thermodilution method using pulmonary artery catheter (PAC) is till date considered as gold standard method. Complications associated with PAC led to development of newer methods which are minimally or non-invasive. Newer methods fulfil other propert...
Source: World Journal of Cardiology - September 26, 2014 Category: Cardiology Authors: Mehta Y, Arora D Tags: World J Cardiol Source Type: research

Echocardiographic Evaluation of Hemodynamics in Patients With Systolic Heart Failure Supported by a Continuous-Flow LVAD
ConclusionsDoppler echocardiography accurately estimated intracardiac hemodynamics in these patients supported with CF-LVAD. Our algorithm reliably distinguished normal from elevated left ventricular filling pressures.
Source: Journal of the American College of Cardiology: Cardiovascular Interventions - September 15, 2014 Category: Cardiology Source Type: research

RV stroke work in children with pulmonary arterial hypertension: estimation based on invasive haemodynamic assessment and correlation with outcomes
Conclusions RVSW can be estimated in children with PAH, and is significantly associated with abnormal WHO class, the need for septostomy, as well as mortality. Indices accounting for RV performance as well as ventricular-vascular coupling may be useful in the prognosis and, hence, management of children with PAH.
Source: Heart - August 6, 2014 Category: Cardiology Authors: Di Maria, M. V., Younoszai, A. K., Mertens, L., Landeck, B. F., Ivy, D. D., Hunter, K. S., Friedberg, M. K. Tags: Congenital heart disease, Drugs: cardiovascular system, Echocardiography, Hypertension, Clinical diagnostic tests, Epidemiology Pulmonary vascular disease Source Type: research

Systemic Hypertension in Low Gradient Severe Aortic Stenosis with Preserved Ejection Fraction.
CONCLUSIONS: Systemic hypertension in LG severe AS with preserved EF is associated with elevated LV filling pressures and pulmonary hypertension. Treatment of hypertension with vasodilator therapy results in a lowering of the total LV afterload, with a decrease in LV filling pressures and pulmonary artery pressures. These findings have important implications for the management of patients with LG severe AS with preserved EF and hypertension. PMID: 23956211 [PubMed - as supplied by publisher]
Source: Circulation - August 16, 2013 Category: Cardiology Authors: Eleid MF, Nishimura RA, Sorajja P, Borlaug BA Tags: Circulation Source Type: research

Relationship of Right- to Left-Sided Ventricular Filling Pressures in Advanced Heart Failure: Insights From the ESCAPE Trial Original Articles
Conclusions— Increased RAP/PCWP ratio was associated with higher pulmonary vascular resistance, reduced RV function (manifest as a larger right atrium and ventricle and lower RV stroke work index), and an increased risk of adverse outcomes in patients with advanced heart failure.
Source: Circulation: Heart Failure - March 19, 2013 Category: Cardiology Authors: Drazner, M. H., Velez-Martinez, M., Ayers, C. R., Reimold, S. C., Thibodeau, J. T., Mishkin, J. D., Mammen, P. P. A., Markham, D. W., Patel, C. B. Tags: Other heart failure Original Articles Source Type: research

P077 * Evaluation of two-dimensional strain echocardiography in quantifying right ventricular function in patients with pulmonary hypertension
Conclusion: The right ventricular longitudinal systolic function can be evaluated accurately and objectively by Two-dimensional strain Echocardiography.
Source: European Journal of Heart Failure Supplements - February 23, 2012 Category: Cardiology Authors: Liu, Y., Pan, L., Zhang, Z. N., Shi, Z. H., Wang, Y., Jing, Z. C., Lee, W. Y., Chan, M. C., Cheun, T. K., So, K. H., Yu, C. M., Lee, W. Y., Pang, T. Y., Kong, W. Y., Chan, K. H., Kwok, L. M., Chan, S. W., Ko, S. S. W., Tam, C. W. Y., Fok, B. S. P., Hu, M. Tags: Hypertension Source Type: research

Acute absolute vasodilatation is associated with a lower vascular wall stiffness in pulmonary arterial hypertension
Abstract: Background: Acute vasoreactivity testing (VT) is considered mandatory in the diagnostic work-up of patients with pulmonary arterial hypertension (PAH). We studied the relation between the acute absolute arterial vasodilatation and the severity of vascular remodeling estimated by intravascular ultrasound (IVUS) in patients with idiopathic PAH.Methods: Simultaneous right heart catheterization and IVUS of the pulmonary artery (PA) were performed both in basal conditions and during short-term intravenous epoprostenol infusion in nineteen idiopathic PAH patients. Pulmonary vascular resistance (PVRi) and capacitance in...
Source: International Journal of Cardiology - July 26, 2011 Category: Cardiology Authors: Juan C. Grignola, Enric Domingo, Rio Aguilar, Manuel Vázquez, Manuel López-Messeguer, Carlos Bravo, Antonio Roman Tags: Original Articles Source Type: research