[Assessment of degree of edema by means of bioelectrical impedance during pregnancy].
ABSTRACT It is well known that the total body water in women with toxemia of pregnancy expands beyond the normally increased volume that characterizes pregnancy. Although abnormally increased water retention is usually diagnosed by both the edema of the legs and the weight gain, these methods are not quantitative. To quantify the degree of edema, we used bioelectrical impedance analysis (BIA). Because water and electrolytes are the dominant factors affecting electrical conduction in the body, the increase in total body water (the degree of edema) is assessed by BIA. BIA was conducted serially in a group of 38 normal pregnant women during pregnancy and 4 pregnant women with toxemia of pregnancy. The values for bioelectrical impedance in normal pregnant women decreased gradually during pregnancy, suggesting a physiological increase in total body water (p < 0.01). In contrast, the values for bioelectrical impedance dramatically decreased in the cases of 4 women with toxemia of pregnancy and accurately increased in the process of recovery from toxemia of pregnancy. These findings indicate that bioelectrical impedance analysis is a useful and practical method for assessing the increase in total body water.
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ABSTRACT: Pregnancy in dialysis patients is a rare occurrence. When pregnancy does occur, the risk of spontaneous abortion, stillbirth and neonatal complications, such as prematurity and growth retardation, are fairly high. The authors describe their experience in the follow-up of a patient with chronic renal failure who became pregnant during regular dialysis treatment and followed nutritional care. The outcomes were successful and she gave birth to a healthy baby. It is emphasized that special dedication to the nutritional control enabled a good outcome of the pregnancy. The importance of the nutritionist intervention in the follow-up of dialysis patients with the integration of a multidisciplinary staff is stressed.Clinical Nutrition 05/2003; 22(2):205-7. · 3.73 Impact Factor
Article: Can the bioelectrical impedance method help to interpret weight change during breastfeeding?[show abstract] [hide abstract]
ABSTRACT: The purpose of this research was to verify the changes in the body weight of breastfeeding women, using the anthropometric and the bioelectrical impedance (BIA) methods. The sample was formed by 30 women who were exclusively breastfeeding their children, with an average age of 27.9±4.4 years old, followed up during four appointments in a public hospital of Rio de Janeiro, Brazil. The anthropometric data showed a significant reduction of body weight during the studied period. Regarding skinfolds, we observed a greater loss in the lower part of the abdominal region, in the suprailiac region and in the thigh. The same occurred to the body circumferences. Resistance values remained unaltered, thus indicating that the total body water content was preserved. We concluded that the significant reduction of body weight was mainly due to the mobilization of the fat tissue, being unrelated to changes in the body water content. In addition, we verified how important it is to associate different methods to assess the change of body weight during breastfeeding.Nutrition & Food Science 03/2002; 32(2):54-61.