Takakura Isabela Thomaz, Hoshi Rosangela Akemi, Santos Márcio Antonio, Pivatelli Flávio Correa, Nóbrega João Honorato, Guedes Débora Linhares, Nogueira Victor Freire, Frota Tuane Queiroz, Castelo Gabriel Castro, Godoy Moacir Fernandes de
Faculdade de Medicina de São José do Rio Preto (FAMERP), São José do Rio Preto, SP, Brazil.
Universidade de Fortaleza (Unifor), Fortaleza, CE, Brazil.
Braz J Cardiovasc Surg. 2017 Jul-Aug;32(4):245-252. doi: 10.21470/1678-9741-2016-0035.
To evaluate a possible evolutionary post-heart transplant return of autonomic function using quantitative and qualitative information from recurrence plots.
Using electrocardiography, 102 RR tachograms of 45 patients (64.4% male) who underwent heart transplantation and that were available in the database were analyzed at different follow-up periods. The RR tachograms were collected from patients in the supine position for about 20 minutes. A time series with 1000 RR intervals was analyzed, a recurrence plot was created, and the following quantitative variables were evaluated: percentage of determinism, percentage of recurrence, average diagonal length, Shannon entropy, and sample entropy, as well as the visual qualitative aspect.
Quantitative and qualitative signs of heart rate variability recovery were observed after transplantation.
There is evidence that autonomic innervation of the heart begins to happen gradually after transplantation. Quantitative and qualitative analyses of recurrence can be useful tools for monitoring cardiac transplant patients and detecting the gradual return of heart rate variability.
利用递归图中的定量和定性信息，评估心脏移植后自主神经功能可能的进化性恢复情况。
使用心电图，对数据库中45例接受心脏移植患者（男性占64.4%）在不同随访期的102份RR间期图进行分析。RR间期图是在患者仰卧位约20分钟时收集的。分析了一个包含1000个RR间期的时间序列，创建了递归图，并评估了以下定量变量：确定性百分比、复发百分比、平均对角线长度、香农熵和样本熵，以及视觉定性方面。
移植后观察到心率变异性恢复的定量和定性迹象。
有证据表明，心脏移植后心脏的自主神经支配开始逐渐发生。递归的定量和定性分析可作为监测心脏移植患者和检测心率变异性逐渐恢复的有用工具。
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