Background Pressure recovery is the variable increase in lateral pressure downstream from a stenotic orifice. The magnitude and clinical significance of pressure recovery in aortic valve stenosis are poorly defined. Methods and Results We obtained high-fidelity pressure and velocity recordings in 11 patients with isolated significant aortic valve stenosis at the time of diagnostic cardiac cathe...

A new technique is described for visualizing the subvalvular chamber of discrete membraneous subaortic stenosis. A Lehman ventriculography catheter is positioned so that its side holes lie within the chamber while its tip passes through the stenotic orifice into the body of the ventricle. A small amount of contrast injected directly into the subvalvular chamber outlines the membrane clearly. Du...

background: considering suggested formula in the references and pcwp measured by catheterism, in the present study the relation between pulmonary capillary wedge pressure (pcwp) measured the flow velocity of mitral valve and mitral annulus motion through tissue doppler imaging is evaluated methods: 52 cases of severe ms were admitted for balloon mitral valvolotomy (bmv) are included in this stu...

BEFORE Denie and Verheugt (1958)' drew attention to the possibility of diagnosing supravalvular aortic stenosis from the characteristics of the pressure tracings across the aortic valve region, there had been only autopsy reports of 17 cases with supravalvular obstruction. Fourteen of these earlier accounts concern bands or membranes stretching across the aortic lumen2-'0 and only three previou...

BEFORE Denie and Verheugt (1958)' drew attention to the possibility of diagnosing supravalvular aortic stenosis from the characteristics of the pressure tracings across the aortic valve region, there had been only autopsy reports of 17 cases with supravalvular obstruction. Fourteen of these earlier accounts concern bands or membranes stretching across the aortic lumen2-'0 and only three previou...

Observations on some epidemiological aspects of pulmonary tuberculosis, based upon an analysis of a thousand consecutive cases and a thousand radiographs studied at the Government Tuberculosis Institute, Madras, were made by Sanjivi (1939). India is a very big country?very often termed a sub-continent? and the various parts of the country show a vast variety of climates, diets, economic conditi...

Isolation of the pulmonary vein antrum can terminate atrial fibrillation, but the rationale has not been elucidated. In the present study, we show that sheep atrial effective refractory period (ERP) was heterogeneously shortened by acetylcholine administration. After perfusion with 15 muM acetylcholine, the shortest ERP occurred in the pulmonary vein antrum, which was recorded with the standard...

BACKGROUND AND OBJECTIVES Tuberculosis (TB) is a major problem in the world. Treatment and control of TB needs detection of the Mycobacterium tuberculosis (MT) in the proper samples. While smear doesn't have enough sensitivity, culture and PCR are expensive, time consuming and unavailable in many centers. Recent development of a rapid TB antigen detection test (PrTBK) at Pasteur Institute of Ir...

BACKGROUND Sputum Mycobacterium tuberculosis (Mtb) culture is commonly used to assess response to antibiotic treatment in individuals with pulmonary tuberculosis (TB). Such techniques are constrained by the slow growth rate of Mtb, and more sensitive methods to monitor Mtb clearance are needed. The goal of this study was to evaluate changes in plasma cytokines in patients undergoing treatment f...

OBJECTIVE The purpose of the study was to determine what patients, professionals and significant others regarded as the most important positive- and challenging aspects of Pulmonary Rehabilitation Programmes for patients with Chronic Obstructive Pulmonary Disease (COPD) and to gain insight into how such programmes could be developed and improved. METHOD A modified Nominal Group Technique meth...