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Comparing lung ultrasound with bioimpedance spectroscopy for evaluating hydration in peritoneal dialysis patients
Author(s) -
Paudel Klara,
Kausik Tarun,
Visser Annemarie,
Ramballi Cheryl,
Fan Stanley L
Publication year - 2015
Publication title -
nephrology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.752
H-Index - 61
eISSN - 1440-1797
pISSN - 1320-5358
DOI - 10.1111/nep.12342
Subject(s) - medicine , peritoneal dialysis , ultrasound , cardiology , concordance , lung , lung ultrasound , natriuretic peptide , dialysis , urology , heart failure , radiology
Background Bioimpedance spectroscopy ( BIS ), ultrasound lung comets ( ULC ) and serum biomarkers ( N ‐terminal pro–brain natriuretic peptide, NT ‐pro BNP ) have all been used to assist clinicians to determine hydration status in dialysis patients. Methods We performed simultaneous BIS , ULC and NT ‐pro BNP measurements in 27 peritoneal dialysis patients to determine the concordance of the three methods. Results Patients with evidence of increasing lung congestion (as determined by ultrasound) were more likely to be diabetic, have systolic hypertension and have higher NT ‐pro BNP ( r = 0.65, P < 0.0005). Although there was a trend for patients with high ULC to be overhydrated as determined by BIS , this did not reach statistical significance. Moreover, the correlation between BIS and NT ‐pro BNP (though statistically significant at r = 0.47, P < 0.02) appeared to be weaker. Conclusion BIS and ULC may be complementary, providing different information, whereas BIS may be more specific to hydration. ULC and NT ‐pro BNP may indicate left ventricular failure coexisting with overhydration.