2001
DOI: 10.1536/jhj.42.483
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<b>Echocardiographic Evaluation of Right Cardiac Function in Patients with Chronic Pulmonary Diseases</b>

Abstract: SUMMARYIt is clinically important to evaluate the severity of right ventricular (RV) overload in patients with chronic pulmonary diseases (CPD). For such evaluation, echocardiography has been widely used because the procedure is noninvasive and can be performed repeatedly. We evaluated the severity of RV overload in CPD patients to assess the usefulness of pulsed Doppler echocardiography. The A/E ratio and deceleration time of early RV inflow velocity correlated significantly with the mean pulmonary artery pre… Show more

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Cited by 18 publications
(23 citation statements)
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References 43 publications
(69 reference statements)
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“…These data are mainly collected from obese subjects with multiple preexisting cardiovascular abnormalities resulting in combined heart failure independent of the extent of adiposity. 9,10) Although lifestyle modification and weight reduction are routinely recommended to improve symptoms and to reduce cardiovascular risk in the obese with metabolic disorders and exertional dyspnea, their effects on right ventricular function and physical performance have not been studied before.…”
mentioning
confidence: 99%
“…These data are mainly collected from obese subjects with multiple preexisting cardiovascular abnormalities resulting in combined heart failure independent of the extent of adiposity. 9,10) Although lifestyle modification and weight reduction are routinely recommended to improve symptoms and to reduce cardiovascular risk in the obese with metabolic disorders and exertional dyspnea, their effects on right ventricular function and physical performance have not been studied before.…”
mentioning
confidence: 99%
“…A grande importância, com relação ao tempo de aceleração do fluxo sistólico pulmonar está na avaliação da hipertensão pulmonar. Alguns trabalhos já foram publicados, tanto na Medicina Humana (KitabakE et al1983, Isobe et al 1986, Miguéres et al1990, Campos Filho et al 1991, Miyahara et al 2001) quanto na Medicina Veteriná-ria (Uehara 1993), mostrando uma estreita correlação entre tempo de aceleração do fluxo pulmonar e pressão arterial pulmonar. Sabe-se que, à medida que ocorre incremento nos níveis de pressão arterial pulmonar média, há encurtamento gradual e proporcional do tempo de aceleração (Isobe et al 1986, Campos Filho et al 1991, Uehara 1993.…”
Section: Discussão E Conclusõesunclassified
“…Tais fatos sugerem aceleração anormalmente rápi-da da velocidade de fluxo sistólico pulmonar, devido principalmente à diminuição da capacitância da circulação pulmonar e, conseqüentemente, aumento da impedância ao livre fluxo sangüíneo (Campos Filho et al 1991). Além disso, a relação entre tempo de aceleração e tempo de ejeção do fluxo da valva pulmonar apresenta-se bastante reduzida em pacientes humanos com hipertensão pulmonar e tem, também, uma alta correlação com os níveis de pressão arterial pulmonar média (Isobe et al 1986, Kitabake et al 1983, Miguéres et al 1990, Campos Filho et al 1991, Miyahara et al 2001.…”
Section: Discussão E Conclusõesunclassified
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“…Diastolic dysfunction is defined as inconvenient increase in right ventricle diastolic pressure with insufficient filling of right ventricle. Right ventricular dysfunction can be seen before the development of pulmonary hypertension and cor pulmonale in COPD patients (2)(3)(4).…”
Section: Introductionmentioning
confidence: 99%