The haemodynamic response to myocardial ischaemia in patients with variant angina during ambulatory activity is unknown. Ambulatory pulmonary artery pressure monitoring with a transducer tipped catheter and simultaneous frequency modulated electrocardiograms was used to assess changes in left ventricular function in five male patients (mean age 51 8 years) during variant angina; four patients h...

DOI: 10.1164/rccm.2107027 Internet address: www.atsjournals.org In 120 patients with severe emphysema evaluated for participation in the National Emphysema Treatment Trial, pulmonary hemodynamics and ventricular function were assessed. Pulmonary function tests were (%predicted): FEV 1 27%; residual volume 224.6%; diffusion capacity 26.7%. In 90.8% of patients, endexpiratory pulmonary artery mea...

Introduction: We wished to see the effects of inhaled PGE1 on diastolic dysfunction, left ventricular end diastolic pressure (LVEDP), pulmonary hypertension and hypoxia in ARDS patients. Methods: This is a randomized, prospective, clinical trial conducted in the main adult intensive care unit of a tertiary care University hospital. A total of 67 patients were recruited. Inclusion criteria inclu...

BACKGROUND Intra-organ and intra-vascular pressures can be used to estimate intra-abdominal pressure. The aim of this prospective, interventional study was to assess the effect of PEEP on the accuracy of pressure estimation at different measurement sites in a model of increased abdominal pressure. METHODS Catheters for pressure measurement were inserted into the stomach, urinary bladder, peri...

OBJECTIVES To investigate the relation between diastolic aortic pressure response and left ventricular systolic dysfunction during percutaneous transluminal coronary angioplasty. BACKGROUND The abnormal diastolic blood pressure rise during exercise in patients with coronary artery disease probably reflects left ventricular systolic dysfunction rather than the number of stenosed coronary arter...

BACKGROUND The role, interplay, and relative importance of the multifactorial hemodynamic and myocardial mechanisms causing dysfunction of the Fontan circulation remain incompletely understood. METHODS AND RESULTS Using an MRI catheterization technique, we performed a differential analysis of pulmonary vascular resistance and aortopulmonary collateral blood flow in conjunction with global ven...

Eighteen patients with coronary artery disease were divided into two groups according to whether their blood pressure decreased (eight, group 1) or increased (10, group 2) in response to treadmill exercise testing. Age and the extent and distribution of coronary artery disease were similar in the two groups. At rest, blood pressure, pulmonary artery wedge pressure, cardiac index, forearm vascul...

s of papers 31 133 Venous Blood Pressure in Broilers During Acute Inhalation of 5% Carbon Dioxide, and During Unilateral Pulmonary Artery Occlusion. R. F. Wideman, Jr.*, P. Maynard, and W. G. Bottje, . We evaluated the hypothesis that venous congestion (increased venous volume) and venous hypertension (increased venous pressure), may arise when the right ventricle must elevate the pulmonary art...