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РЖ ВИНИТИ 34 (BI23) 96.12-04М2.303

Reentrant wave fronts in Wiggers' stage II ventricular fibrillation. Characteristics and mechanisms of termination and spontaneous regeneration [Text] / John J. Lee [et al.] // Circ. Res. - 1996. - Vol. 78, N 4. - P660-675 . - ISSN 0009-7330
Перевод заглавия: Фронт волны циркуляции возбуждения при желудочковой фибрилляции II стадии по Wiggers. Характеристики и механизмы прекращения и спонтанной регенерации
Аннотация: The mechanisms of Wiggers' stage II ventricular fibrillation (VF) are poorly understood. Using computerized mapping techniques, we studied the patterns of activation during Wiggers' stage II VF in 13 open-chest dogs. In 7 of the 13 dogs, the right ventricular Purkinje fibers and adjacent subendocardial myocytes were ablated with Lugol solution. VF was induced electrically, and 3 to 5 seconds of data were obtained beginning 'ПРИБЛ='2.5 seconds after the onset of VF. Dynamic displays of the activation patterns and isochronal maps revealed the presence of reentrant wave fronts in 17 of 33 runs of VF in ablated ventricles and in 12 of 45 runs of VF in intact ventricles. We conclude the following: (1) Reentrant activities with short life spans and meandering cores are present during Wiggers' stage II VF in dogs. (2) New reentrant wave fronts are generated when one wave front interacts with another wave front during its vulnerable period. (3) The reentrant wave fronts terminate spontaneously or as the result of interference. (4) Chemical subendocardial ablation does not affect the incidence, life span, cycle length, or core size of the reentrant wave fronts. Библ. 39

ГРНТИ	34.39.29

ВИНИТИ 341.39.29.11.31.11
Рубрики: АРИТМИИ СЕРДЦА
МОДЕЛИРОВАНИЕ
ФИБРИЛЛЯЦИИ ЖЕЛУДКОВ
ФРОНТ ВХОДЯЩЕЙ ВОЛНЫ
СОБАКИ

Доп.точки доступа:
Lee, John J.; Kamjoo, Kamyar; Hough, Dustan; Hwang, Chun; Fan, Wei; Fishbein, Michael C.; Bonometti, Claudio; Ikeda, Takanori; Karagueuzian, Hrayr S.; Chen, Peng-Sheng

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