PMID- 32023754 OWN - NLM STAT- MEDLINE DCOM- 20200213 LR - 20200717 IS - 0253-2727 (Print) IS - 2707-9740 (Electronic) IS - 0253-2727 (Linking) VI - 41 IP - 1 DP - 2020 Jan 14 TI - [The prognostic value of baseline serum free light chain in immunoglobulin light-chain cardiac amyloidosis]. PG - 47-53 LID - 10.3760/cma.j.issn.0253-2727.2020.01.009 [doi] AB - Objective: To analyze the prognostic value of baseline serum free light chain (sFLC) in immunoglobulin light-chain cardiac amyloidosis (AL-CA) . Methods: Thirty patients diagnosed with AL-CA from January 2012 to December 2016 at Beijing Chaoyang Hospital were included in this study to retrospectively evaluate the clinical data. The cut-off value of dFLC (involved sFLC minus uninvolved sFLC) was determined according to the receiver operator characteristic curve (ROC) and grouped, the prognoses of both groups were evaluated. Results: The onset age of all AL-CA patients was 57 years old. It occurred more commonly in men (21 cases, 70%) and the light chains of immunoglobulin composed mainly of type lambda (22 cases, 73.3%) . Renal involvements occurred in 17 cases (56.7%) . The median value of difference between involved and uninvolved serum immunoglobulin free light chain levels (dFLC) was 162.9 (57.9-401.6) mg/L. More subjects in the high dFLC group had higher BNP (P=0.005) , and shorter median survival than those in the low dFLC group (15 months vs 47 months, P<0.001) . Similar results of median survival were observed when the patients were redivided by a new cut-off value of 180 mg/L for dFLC (high dFLC group: 22 months, low dFLC group: 40 months, P=0.001) , or a kappa/lambda ratio in which patients with kappa type sFLC-ratio<3.79 and lambda type sFLC-ratio>/=0.06 were grouped into the low sFLC-ratio (37 months) , and the reverse the high sFLC-ratio ones (25 months, P=0.021) . In multivariate analysis, dFLC and New York Heart Association (NYHA) classification of cardiac function were two risk factors associated with all-cause mortality in patients, of them the hazard ratio for higher dFLC was 12.13 (95%CI 2.98-49.30, P<0.001) . Conclusion: Measurement of the sFLC level could implicate the prognosis of AL-CA. FAU - Wang, L M AU - Wang LM AD - Department of Geriatrics, Beijing NO.6 Hospital, Beijing 100007, China. FAU - Wang, T T AU - Wang TT AD - Department of Hematology, Beijing Chaoyang Hospital of Capital Medical University, Beijing 100020, China. FAU - Tian, Y AU - Tian Y AD - Department of Hematology, Beijing Chaoyang Hospital of Capital Medical University, Beijing 100020, China. FAU - Zhao, L AU - Zhao L AD - Department of Cardiology, Beijing Chaoyang Hospital of Capital Medical University, Beijing 100020, China. FAU - Yang, X C AU - Yang XC AD - Department of Cardiology, Beijing Chaoyang Hospital of Capital Medical University, Beijing 100020, China. FAU - Chen, W M AU - Chen WM AD - Department of Hematology, Beijing Chaoyang Hospital of Capital Medical University, Beijing 100020, China. LA - chi GR - 2018M641419/China Postdoctoral Fund/ GR - 2018-22-114/Beijing Postdoctoral Fund Support Project/ PT - Journal Article PL - China TA - Zhonghua Xue Ye Xue Za Zhi JT - Zhonghua xue ye xue za zhi = Zhonghua xueyexue zazhi JID - 8212398 RN - 0 (Immunoglobulin Light Chains) SB - IM MH - Female MH - Humans MH - Immunoglobulin Light Chains MH - *Immunoglobulin Light-chain Amyloidosis MH - *Kidney MH - Male MH - Middle Aged MH - Prognosis MH - Retrospective Studies PMC - PMC7357907 OTO - NOTNLM OT - Amyloidosis OT - Myoeardium OT - Prognosis OT - Serum free light chain EDAT- 2020/02/07 06:00 MHDA- 2020/02/14 06:00 PMCR- 2020/01/01 CRDT- 2020/02/07 06:00 PHST- 2020/02/07 06:00 [entrez] PHST- 2020/02/07 06:00 [pubmed] PHST- 2020/02/14 06:00 [medline] PHST- 2020/01/01 00:00 [pmc-release] AID - cjh-41-01-047 [pii] AID - 10.3760/cma.j.issn.0253-2727.2020.01.009 [doi] PST - ppublish SO - Zhonghua Xue Ye Xue Za Zhi. 2020 Jan 14;41(1):47-53. doi: 10.3760/cma.j.issn.0253-2727.2020.01.009.