Чреспищеводная электростимуляция в оценке предсердно-узлового проведения
Transesophageal electric stimulation (TES) is a method of non-invasive cardiac electrophysiology studies. The aim of the study is to evaluate the possibility of TES in the research into atrio-nodal conductions. The scientific innovation is in a non-invasive analysis of the heterogeneity of the refra...
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| Format: | Book |
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SINAPS LLC,
2016-03-01T00:00:00Z.
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| Summary: | Transesophageal electric stimulation (TES) is a method of non-invasive cardiac electrophysiology studies. The aim of the study is to evaluate the possibility of TES in the research into atrio-nodal conductions. The scientific innovation is in a non-invasive analysis of the heterogeneity of the refractory period of atrio-nodal connections. 249 patients were examined. By the nature of AV-conduction curve the patients were divided into 2 groups. The first group (109 persons) consisted of the patients with diagnosed transition point (TP). The second group included 140 people, whose V1-V2 dependence of A1-A2 was close to a line - without a TP. It was discovered that the differences in atrio-nodal conductions depend on the effective refractory period of atrioventricular connection. A low index of ERP atrio-nodal conduction is more physiological and accompanied (ERP) by the absence of the increase heart rate under the most further increase the frequency atrial stimulation. A high index of ERP can be caused by different reasons. This variant of atrio-nodal conductions is followed by less favorable changes in hemodynamics. |
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| Item Description: | 2226-6704 2411-6564 10.20514/2226-6704-2016-6-1-54-57 |