PMID- 26685729 OWN - NLM STAT- MEDLINE DCOM- 20170623 LR - 20181202 IS - 1876-4738 (Electronic) IS - 0914-5087 (Linking) VI - 68 IP - 5 DP - 2016 Nov TI - Clinical correlates and prognostic values of pseudoinfarction in cardiac light-chain amyloidosis. PG - 426-430 LID - S0914-5087(15)00370-6 [pii] LID - 10.1016/j.jjcc.2015.11.004 [doi] AB - BACKGROUND: Pseudoinfarction is one of the most common electrocardiographic characteristics in cardiac light-chain (AL) amyloidosis. The aim of the present study was to analyze the prognostic significance of pseudoinfarction and define the relation between pseudoinfarction and clinical parameters in cardiac AL amyloidosis. METHODS: A total 110 consecutive patients who presented with a diagnosis of cardiac AL amyloidosis and without a positive history of coronary disease between 2010 and 2014 were enrolled. Patients were divided into two groups according to the presence (n=40) or absence (n=70) of pseudoinfarction on electrocardiography (ECG). Clinical parameters including laboratory tests, echocardiography, and follow-up were collected and analyzed. RESULTS: Patients with pseudoinfarction had higher N-terminal pro-brain natriuretic peptide levels (9131pg/ml vs 4644pg/ml, p=0.02) and a worse New York Heart Association (NYHA) function (p<0.001). The pseudoinfarction group also had a larger left atrium size (44mm vs 41mm, p=0.03), a thicker ventricular wall (septum 14mm vs 13mm, p=0.005 and posterior wall 14mm vs 13mm, p=0.01), a lower left ventricular ejection fraction (50% vs 58%, p=0.013), and higher early-to-atrial transmitral flow velocity ratio (p=0.001). Also, the pseudoinfarction group was closely associated with a lower voltage (70% vs 38.6%, p=0.002), poor precordial R wave progression (78.4% vs 43.9%, p=0.001), lower Sokolow-Lyon index (13mm vs 9mm, p<0.001), and lower voltage to mass ratio (0.521 vs 0.442, p=0.028) on the ECG. After a median follow-up of 39 months, Kaplan-Meier survival analysis showed that lifetime was significantly shorter in the pseudoinfarction group (median 4 months vs 17 months, p<0.001). By adopting the multivariate Cox proportional model, NYHA heart failure III to IV and the presence of pseudoinfarction remained the only two independent prognostic determinants with death hazard ratio of 3.16 and 1.9, respectively. CONCLUSIONS: The presence of pseudoinfarction on the ECG has a negative prognostic effect on AL patients with cardiac involvement. CI - Copyright (c) 2015 Japanese College of Cardiology. Published by Elsevier Ltd. All rights reserved. FAU - Zhao, Lei AU - Zhao L AD - Department of Cardiology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China. FAU - Li, Jian AU - Li J AD - Department of Hematology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China. FAU - Tian, Zhuang AU - Tian Z AD - Department of Cardiology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China. Electronic address: tianzhuangcn@163.com. FAU - Fang, Quan AU - Fang Q AD - Department of Cardiology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China. Electronic address: quanfangxjn2013@163.com. LA - eng PT - Journal Article DEP - 20151210 PL - Netherlands TA - J Cardiol JT - Journal of cardiology JID - 8804703 RN - 0 (N-terminal proatrial natriuretic peptide) RN - 0 (Protein Precursors) RN - 85637-73-6 (Atrial Natriuretic Factor) SB - IM MH - Amyloidosis/*mortality MH - Atrial Natriuretic Factor/blood MH - Blood Flow Velocity MH - Echocardiography MH - *Electrocardiography MH - Female MH - Heart Atria/diagnostic imaging MH - Heart Diseases/*mortality MH - Heart Failure/mortality MH - Heart Ventricles/diagnostic imaging MH - Humans MH - Male MH - Middle Aged MH - Multivariate Analysis MH - Prognosis MH - Protein Precursors/blood MH - Stroke Volume OTO - NOTNLM OT - Amyloidosis OT - Echocardiography OT - Electrocardiography OT - Prognosis OT - Pseudoinfarction EDAT- 2016/10/19 06:00 MHDA- 2017/06/24 06:00 CRDT- 2015/12/22 06:00 PHST- 2015/07/13 00:00 [received] PHST- 2015/10/26 00:00 [revised] PHST- 2015/11/07 00:00 [accepted] PHST- 2016/10/19 06:00 [pubmed] PHST- 2017/06/24 06:00 [medline] PHST- 2015/12/22 06:00 [entrez] AID - S0914-5087(15)00370-6 [pii] AID - 10.1016/j.jjcc.2015.11.004 [doi] PST - ppublish SO - J Cardiol. 2016 Nov;68(5):426-430. doi: 10.1016/j.jjcc.2015.11.004. Epub 2015 Dec 10.