Diferenças relacionadas ao sexo nos volumes ventriculares e na fração de ejeção do ventrículo esquerdo estimados por cintilografia de perfusão miocárdica: comparação entre os programas Quantitative Gated SPECT (QGS) e Segami

Yamada, André Fukunishi; Neto, Guilherme de Carvalho Campos; Soares, José; Giorgi, Maria Clementina Pinto; Araújo, Fernando; Meneghetti, José Cláudio; Mansur, Alfredo José

doi:10.1590/s0066-782x2007000300006

Cited by 11 publications

(2 citation statements)

References 8 publications

(5 reference statements)

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“…In a previous study, LVEF as estimated by quantitative gated SPECT was found to be significantly higher in women than in men in 181 asymptomatic individuals with no evidence of heart disease. 19 Sex-related differences in LVEF values might positively or negatively affect maximum gait speed and PA in hospitalized patients, and therefore, both maximum gait speed and PA in the present study patients were analyzed after adjusting for LVEF.…”

Section: Discussionmentioning

confidence: 99%

Gender-related Differences in Maximum Gait Speed and Daily Physical Activity in Elderly Hospitalized Cardiac Inpatients

et al. 2015

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Maximum gait speed and physical activity (PA) relate to mortality and morbidity, but little is known about gender-related differences in these factors in elderly hospitalized cardiac inpatients. This study aimed to determine differences in maximum gait speed and daily measured PA based on sex and the relationship between these measures in elderly cardiac inpatients.A consecutive 268 elderly Japanese cardiac inpatients (mean age, 73.3 years) were enrolled and divided by sex into female (n = 75, 28%) and male (n = 193, 72%) groups. Patient characteristics and maximum gait speed, average step count, and PA energy expenditure (PAEE) in kilocalorie per day for 2 days assessed by accelerometer were compared between groups.Gait speed correlated positively with in-hospital PA measured by average daily step count (r = 0.46, P < 0.001) and average daily PAEE (r = 0.47, P < 0.001) in all patients. After adjustment for left ventricular ejection fraction, step counts and PAEE were significantly lower in females than males (2651.35 ± 1889.92 vs 4037.33 ± 1866.81 steps, P < 0.001; 52.74 ± 51.98 vs 99.33 ± 51.40 kcal, P < 0.001), respectively.Maximum gait speed was slower and PA lower in elderly female versus male inpatients. Minimum gait speed and step count values in this study might be minimum target values for elderly male and female Japanese cardiac inpatients.

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Section: Discussionmentioning

confidence: 99%

Gender-related Differences in Maximum Gait Speed and Daily Physical Activity in Elderly Hospitalized Cardiac Inpatients

et al. 2015

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“…These parameters have been demonstrated to be influenced by gender, with lower ventricular volumes and higher LVEF in women 14 . Quantitative programs using information on the counting density for the determination of systolic function are less influenced by the magnitude of the left volume and by the image resolution than do algorithms based on border detection, and they generate ventricular volumes systematically greater than those calculated by the QGS program 15 .…”

Section: Discussionmentioning

confidence: 99%

Função ventricular após cirurgia de revascularização: Gated SPECT comparado à ressonância cardíaca

Mesquita

Pessoa

Vasconcelos

et al. 2009

Arq. Bras. Cardiol.

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Heart Function Analysis in Cardiac Patients with Focus on Sex-Specific Aspects

Kerkhof¹,

Peace

Heyndrickx

et al. 2018

Advances in Experimental Medicine and Biology

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Cardiac function is best described by investigating the pressure-volume relationships. This information permits description in terms of the ventricular volume regulation graph (VRG), estimation of systolic elastance, evaluation of lusitropic properties, and assessment of ventriculo-arterial coupling. Current techniques yield noninvasive determination of cardiac compartmental volumes, along with systolic/diastolic arterial pressure, while ventricular end-diastolic pressure can be inferred from an echocardiography-based surrogate measure. Ventricular volume is known to vary with age, as well as to be affected by intrinsic cardiac disease and abnormalities of the vascular system. Moreover, 35 years ago it has been shown in healthy adults that left ventricular volume is significantly smaller in women compared to men. This important observation has serious implications for several metrics which are routinely used in clinical practice, e.g., ejection fraction. The remarkable difference between ventricular size in men and women is also a powerful starting point for the study of aging and the investigation of interventions such as exercise. In this review we evaluate sex-specific characteristics of the VRG and the implications for various cardiac patient populations, during basal conditions and intervention such as exercise.

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Diferenças relacionadas ao sexo nos volumes ventriculares e na fração de ejeção do ventrículo esquerdo estimados por cintilografia de perfusão miocárdica: comparação entre os programas Quantitative Gated SPECT (QGS) e Segami

Cited by 11 publications

References 8 publications

Gender-related Differences in Maximum Gait Speed and Daily Physical Activity in Elderly Hospitalized Cardiac Inpatients

Gender-related Differences in Maximum Gait Speed and Daily Physical Activity in Elderly Hospitalized Cardiac Inpatients

Função ventricular após cirurgia de revascularização: Gated SPECT comparado à ressonância cardíaca

Heart Function Analysis in Cardiac Patients with Focus on Sex-Specific Aspects

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