Thermodilution
Mostrando 1-12 de 58 artigos, teses e dissertações.
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1. Sildenafil prevents the increase of extravascular lung water and pulmonary hypertension after meconium aspiration in newborn piglets
Meconium aspiration syndrome causes respiratory failure after birth and in vivo monitoring of pulmonary edema is difficult. The objective of the present study was to assess hemodynamic changes and edema measured by transcardiopulmonary thermodilution in low weight newborn piglets. Additionally, the effect of early administration of sildenafil (2 mg/kg vo, 30
Brazilian Journal of Medical and Biological Research. Publicado em: 2011-08
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2. Algorithm for recovery of s temperature ignals measured with pulmonary artery catheters / Algoritmo para recuperação de sinais de temperatura de cateteres de artéria pulmonar
O objetivo deste trabalho é o desenvolvimento de uma técnica para a melhoria de curvas de temperatura medidas com cateteres Swan-Ganz, que melhoram o desempenho de técnicas desenvolvidas anteriormente. Nesta tese de doutorado, breves discussões sobre a fisiologia do sistema cardiovascular e sobre os métodos baseados em termodiluição são apresentadas.
Publicado em: 2007
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3. Variação do debito cardiaco na estimulação artificial em ponta do ventriculo esquerdo, ponta do ventriculo direito e biventricular : estudo experimental em porcos
The experimental models admit the study of the artificial pacemakers in heart physiological phenomena and its correlation with the clinical practice. The purposes of this work were to pattern the technique of production of complete experimental AV block and to study the variation of the cardiac output in the sinus rhythm, in the AV block and with cardiac pac
Publicado em: 2003
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4. Desenvolvimento de um medidor de debito cardiaco pelo metodo de termodiluição
The measurement of Cardiac Output is of great 1mportance for the functional evaluation of the clrculatory system. Together w1th other physiological parameters, such as pressure, heart rate, etc, it allows us to establish the circulatory system hemodynam1c working state. As a consequence, it helps on the adequate d1agnosis of the pathologies that affect the c
Publicado em: 1991
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5. Non-invasive determination of cardiac output by Doppler echocardiography and electrical bioimpedance.
Cardiac output measured by thermodilution in 25 patients within 24 hours of acute myocardial infarction was compared with cardiac output measured by Doppler echocardiography (24 patients) and electrical bioimpedance (25 patients). The mean (range) cardiac outputs measured by Doppler (4.03 (2.2-6.0) 1/min) and electrical bioimpedance (3.79 (1.1-6.2) 1/min) we
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6. Automated non-invasive measurement of cardiac output by the carbon dioxide rebreathing method: comparisons with dye dilution and thermodilution.
The accuracy and reproducibility of indirect measurement of cardiac output at rest by the carbon dioxide rebreathing (indirect Fick) method with an automated respiratory analysis system (Gould 9000IV) were compared with simultaneous measurements made in duplicate by dye dilution and thermodilution in 25 patients having cardiac catheterisation studies. Measur
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7. Accuracy of thermodilution measurement of cardiac output in low flows applicable to feline and small canine patients.
A model system of feline or small canine cardiac output was used to produce known liquid flow rates in the range of 100 to 750 mL/min for comparison against a thermodilution technique of flow measurement. Thermal indicator size was decided by the thermal time concentration curve detected by the Edwards 9520A cardiac output computer. Ten consecutive readings
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8. Left Ventricular Volume in Man Measured by Thermodilution*
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9. Left Ventricular Volume Measurements in Man by Thermodilution*
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10. Left ventricular volume in aortic stenosis measured by an angiocardiographic and a thermodilution method.
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11. Measurement of right ventricular end-systolic and end-diastolic volumes by the thermodilution technique.
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12. Changes in left ventricular stroke volume measured by Doppler echocardiography.
Cardiac stroke volume was measured simultaneously by Doppler echocardiography and thermodilution in 20 patients with coronary artery disease. Stroke volume as determined by ultrasound was calculated from the area of the aortic orifice and the flow velocity just distal to the aortic cusps. The recordings were made twice at rest. Ten patients were given dobuta