Why the study?
Does clinical judgment overestimate volume overload compared to bioimpedance in obese hemodialysis patients?
Does clinical judgment overestimate volume overload compared to bioimpedance in obese hemodialysis patients?
Clinical judgment overestimates volume overload in obese hemodialysis patients compared to bioimpedance, leading to excessive ultrafiltration and volume contraction.
Clinical judgment may overestimate volume overload in obese hemodialysis patients; hypothesis-generating and requires prospective confirmation before practice implications.
The well recognized relationship between cardiac natriuretic peptides and volume expansion was confirmed. The volume overload at treatment end (VO - VU) was negligible for the whole group of patients but more negative with increasing BMI. It therefore appears that in comparison to bioimpedance-based evaluation the clinical judgment overestimates volume overload in obese patients which leads to the delivery of high ultrafiltration volumes and to volume contraction at the end of a dialysis session in this group of patients.
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Ribitsch et al. (2012) studied this question.