T-wave alternans as an arrhythmic risk stratifier: state of the art.
T-wave alternans as an arrhythmic risk stratifier: state of the art.
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DOI:
10.1007/s11886-013-0398-7
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发表时间:
2013-09
影响因子:
3.7
通讯作者:
Armoundas, Antonis A.
中科院分区:
文献类型:
--
作者:
Merchant, Faisal M.;Sayadi, Omid;Moazzami, Kasra;Puppala, Dheeraj;Armoundas, Antonis A.
关键词:
Microvolt level T-wave alternans (MTWA), a phenomenon of beat-to-beat variability in the repolarization phase of the ventricles, has been closely associated with an increased risk of ventricular tachyarrhythmic events (VTE) and sudden cardiac death (SCD) during medium- and long-term follow-up. Recent observations also suggest that heightened MTWA magnitude may be closely associated with short-term risk of impending VTE. At the sub-cellular and cellular level, perturbations in calcium transport processes likely play a primary role in the genesis of alternans, which then secondarily lead to alternans of action potential morphology and duration (APD). As such, MTWA may play a role not only in risk stratification but also more fundamentally in the pathogenesis of VTE. In this paper, we outline recent advances in understanding the pathogenesis of MTWA and also the utility of T-wave alternans testing for clinical risk stratification. We also highlight emerging clinical applications for MTWA.
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影响因子:
37.8
作者:
Fishman GI;Chugh SS;Dimarco JP;Albert CM;Anderson ME;Bonow RO;Buxton AE;Chen PS;Estes M;Jouven X;Kwong R;Lathrop DA;Mascette AM;Nerbonne JM;O'Rourke B;Page RL;Roden DM;Rosenbaum DS;Sotoodehnia N;Trayanova NA;Zheng ZJ
通讯作者:
Zheng ZJ
DOI:
10.1152/ajpheart.00612.2001
发表时间:
2002-02-01
影响因子:
4.8
作者:
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通讯作者:
Gilmour, RF
影响因子:
5.5
作者:
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通讯作者:
Merchant, Faisal M.
影响因子:
3.4
作者:
Chudin, E;Goldhaber, J;Kogan, B
通讯作者:
Kogan, B
影响因子:
20.1
作者:
Díaz, ME;Eisner, DA;O'Neill, SC
通讯作者:
O'Neill, SC