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N‐terminal B‐type natriuretic peptide (NT‐proBNP) is associated with disease severity in multiple myeloma
Author(s) -
Pavo Noemi,
Cho Anna,
Wurm Raphael,
Strunk Guido,
Krauth Maria,
Agis Hermine,
Hülsmann Martin
Publication year - 2018
Publication title -
european journal of clinical investigation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.164
H-Index - 107
eISSN - 1365-2362
pISSN - 0014-2972
DOI - 10.1111/eci.12905
Subject(s) - medicine , natriuretic peptide , multiple myeloma , gastroenterology , population , beta 2 microglobulin , clinical endpoint , stage (stratigraphy) , end stage renal disease , disease , heart failure , cardiology , biology , paleontology , environmental health , clinical trial
Abstract Background Elevated levels of cardiovascular markers including N‐terminal B‐type natriuretic peptide (NT‐proBNP) have been shown to be associated with disease severity and mortality in an unselected population of cancer patients without cardiac disease. The aim of this study was to investigate whether NT‐proBNP levels are related to disease severity in multiple myeloma (MM) and to assess the natural course of NT‐proBNP levels throughout disease progression. Materials and methods We retrospectively analysed a total of 118 patients with MM, who were followed up routinely. NT‐proBNP, beta‐2‐microglobulin (B2M) and levels of plasma cell‐derived light chains were measured at baseline and follow‐up (FUP) visits. All‐cause mortality was defined as primary study endpoint, and the correlation between NT‐proBNP and disease severity reflected by B2M and the International Staging System (ISS) was assessed. Results During a median FUP of 845 (IQR:683‐978) days, 31 patients (26%) died. NT‐proBNP showed a highly significant positive correlation with B2M at first presentation [ r = .65, P < .001] and increased significantly with progressing MM disease stage [133.3 pg/mL (IQR:51.5‐282.0) for ISS stage 1, 487.4 pg/mL (IQR:123.8‐738.3) for ISS stage 2 and 969.1 pg/mL (IQR:472.8‐3748.0) for ISS stage 3, P < .001 between all groups]. During FUP, NT‐proBNP levels rose significantly alongside other MM disease severity markers for patients experiencing the primary outcome [356.6 pg/mL (IQR:142.9‐782.3) vs 862.9 pg/mL (IQR:338.8‐4215.0), P < .001], whereas no significant changes in laboratory parameters could be detected for survivors. Conclusions Elevated levels of the cardiovascular marker NT‐proBNP are associated with disease severity in patients with MM.