Blood clonal B cell excess at diagnosis in XXXX : relation to prognosis.

@entity1 @entity1582 @entity8
112 @entity1 with @entity1582 have been studied at diagnosis for the presence of blood clonal B-cell excess (CBE), defined as a ratio between kappa+ and lambda+ lymphocytes outside the normal range (0.9-3.5). 48 @entity1 (43%) had CBE. The increase in light chain-bearing lymphocytes was always that of the M component light chain isotype. The proportions of @entity1 exhibiting CBE were the same in different stages. The response frequency was not influenced by the presence of CBE. However, @entity1 with CBE had a shorter remission duration time (p less than 0.001) and total survival (p less than 0.05) than those without CBE. This was also noticed when each clinical stage was analyzed separately. Moreover, survival was shorter in @entity1 with a large fraction of CBE than in those with a small one. Cox regression analysis revealed that CBE was a much stronger predictor of remission duration than age, clinical stage and @entity8 . CBE and response to initial treatment independently were the best factors to indicate survival. It is suggested that analysis of CBE should be included in the clinical characterization of untreated @entity1 with @entity1582 .
