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...

To determine if changes in pulmonary capillary wedge pressure could be determined from the pulmonary blood volume (PBV) ratio response on exercise-gated blood pool images, 42 patients had simultaneous exercise-gated blood pool imaging and hemodynamic monitoring during cardiac catheterization. Nine patients were normal and 33 patients had cardiac disease. Changes in the PBV ratio were determined...

To determine if changes in pulmonary capillary wedge pressure could be determined from the pulmonary blood volume (PBV) ratio response on exercise-gated blood pool images, 42 patients had simultaneous exercise-gated blood pool imaging and hemodynamic monitoring during cardiac catheterization. Nine patients were normal and 33 patients had cardiac disease. Changes in the PBV ratio were determined...

CHEST, 74: 6, DECEMBER, 1978 pulmonary capillary wedge pressure to normal by increasing extramural pressure. So for us, therapy with IPPV and PEEP usually influences the pulmonary capillary wedge pressure, especially when the central blood volume varies from normal; thus, the interest and limits of the “weaning test” are clearly defined. In some cases, therapy with artificial ventilation does n...

CHEST, 74: 6, DECEMBER, 1978 pulmonary capillary wedge pressure to normal by increasing extramural pressure. So for us, therapy with IPPV and PEEP usually influences the pulmonary capillary wedge pressure, especially when the central blood volume varies from normal; thus, the interest and limits of the “weaning test” are clearly defined. In some cases, therapy with artificial ventilation does n...

Factors determining the symptoms of breathlessness and fatigue in patients with congestive heart failure were investigated by comparing the response to slow and fast exercise. Symptom limited oxygen consumption (maximal); minute ventilation, mean pulmonary capillary wedge pressure; and arterial blood gases, pH, and lactate concentrations were measured during treadmill exercise using a slow prot...

BACKGROUND Right ventricular failure from increased pulmonary vascular loading is a major cause of morbidity and mortality, yet its modulation by disease remains poorly understood. We tested the hypotheses that, unlike the systemic circulation, pulmonary vascular resistance (R(PA)) and compliance (C(PA)) are consistently and inversely related regardless of age, pulmonary hypertension, or inters...

BACKGROUND Hemodynamic assessment after volume challenge has been proposed as a way to identify heart failure with preserved ejection fraction. However, the normal hemodynamic response to a volume challenge and how age and sex affect this relationship remain unknown. METHODS AND RESULTS Sixty healthy subjects underwent right heart catheterization to measure age- and sex-related normative resp...

To elucidate the genesis and effect of atrial fibrillation (AF), 102 patients with acute myocardial infarction were studied. Eighteen patients had AF during the first 72 hours in the coronary care unit. The hospital mortality rate was 23%. Discriminant analysis was used to determine the important variables contributing to the genesis of AF and hospital mortality based on the following variables...

• The contribution of the pulmonary venous system to the pulmonary vascular resistance has been a subject of increasing interest." The pulmonary veins are sometimes considered to consist of wide inactive vessels; however, histological studies have revealed a layer of smooth muscle in these veins, especially at their junction with the left atrium. The veins may also respond histologieally by ven...