caa a22 4500 477112560 CHVBK 20180405111613.0 cr unu---uuuuu 170330e19960101xx s 000 0 eng 10.1007/BF01744597 doi (NATIONALLICENCE)springer-10.1007/BF01744597 Atrial reservoir and active transport function after cardioversion of chronic atrial fibrillation [Elektronische Daten] [Yoshimi Ito, Michio Arakawa, Toshiyuki Noda, Hiroshi Miwa, Kensaku Kagawa, Kazuhiko Nishigaki, Hisayoshi Fujiwara] Summary: Atrial reservoir function has not been studied after successful cardioversion of chronic atrial fibrillation. Using transthoracic and transesophageal Doppler echocardiography, we measured flow velocitytime integrals of the systolic forward (Sa), diastolic forward (Da), and diastolic reversed (rAa) waves of flow velocity waveforms in the pulmonary vein and the superior vena cava, and those of the early diastolic (Ea) and late diastolic (Aa) waves of the transmitral and transtricuspid flow velocity waveforms. The left and right atrial storage fractions (LASF, RASF), indexes of atrial reservoir function, were determined as the ratios of the atrial storage volume to the ventricular stroke volume; (Sa − rAa)/(Sa − rAa + Da). The left and right atrial active contraction fractions (LAACF, RAACF), indexes of atrial active transport function, were also determined as the ratios of the atrial active contraction volume to the left ventricular stroke volume; Aa/(Ea + Aa). These indices were evaluated periodically in 12 patients with non-valvular chronic atrial fibrillation before and 1-4 days after direct current cardioversion of atrial fibrillation; in 8 of the patients, the indices were also evaluated 1-3 months after the cardioversion. An additional 10 patients in sinus rhythm served as controls. Both the LASF and RASF were low during atrial fibrillation; the values increased significantly 1-4 days after successful cardioversion (P < 0.01,P < 0.01), and continued to increase at 1-3 months. The LASF and RASF values 1-3 months after cardioversion were comparable to those in control subjects. Both the LAACF and RAACF also increased significantly from 1-4 days to 1-3 months after cardioversion (P < 0.05,P < 0.01), becoming comparable to those in control subjects. During the 3 months after successful cardioversion of non-valvular chronic atrial fibrillation, left and right atrial reservoir function and left and right atrial active transport function increased progressively, becoming comparable to values in the control subjects. Springer-Verlag, 1996 Chronic atrial fibrillation nationallicence DC cardioversion nationallicence Transesophageal Doppler echocardiography nationallicence Pulmonary vein flow velocity nationallicence Ito Yoshimi Second Department of Internal Medicine, Gifu University School of Medicine, 40 Tsukasa-machi, Gifu, 500, Gifu, Japan aut Arakawa Michio Second Department of Internal Medicine, Gifu University School of Medicine, 40 Tsukasa-machi, Gifu, 500, Gifu, Japan aut Noda Toshiyuki Second Department of Internal Medicine, Gifu University School of Medicine, 40 Tsukasa-machi, Gifu, 500, Gifu, Japan aut Miwa Hiroshi Second Department of Internal Medicine, Gifu University School of Medicine, 40 Tsukasa-machi, Gifu, 500, Gifu, Japan aut Kagawa Kensaku Second Department of Internal Medicine, Gifu University School of Medicine, 40 Tsukasa-machi, Gifu, 500, Gifu, Japan aut Nishigaki Kazuhiko Second Department of Internal Medicine, Gifu University School of Medicine, 40 Tsukasa-machi, Gifu, 500, Gifu, Japan aut Fujiwara Hisayoshi Second Department of Internal Medicine, Gifu University School of Medicine, 40 Tsukasa-machi, Gifu, 500, Gifu, Japan aut Heart and Vessels Springer-Verlag 11/1(1996-01-01), 30-38 0910-8327 11:1<30 1996 11 380 https://doi.org/10.1007/BF01744597 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01744597 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ito Yoshimi Second Department of Internal Medicine, Gifu University School of Medicine, 40 Tsukasa-machi, Gifu, 500, Gifu, Japan aut NATIONALLICENCE 700 1- Arakawa Michio Second Department of Internal Medicine, Gifu University School of Medicine, 40 Tsukasa-machi, Gifu, 500, Gifu, Japan aut NATIONALLICENCE 700 1- Noda Toshiyuki Second Department of Internal Medicine, Gifu University School of Medicine, 40 Tsukasa-machi, Gifu, 500, Gifu, Japan aut NATIONALLICENCE 700 1- Miwa Hiroshi Second Department of Internal Medicine, Gifu University School of Medicine, 40 Tsukasa-machi, Gifu, 500, Gifu, Japan aut NATIONALLICENCE 700 1- Kagawa Kensaku Second Department of Internal Medicine, Gifu University School of Medicine, 40 Tsukasa-machi, Gifu, 500, Gifu, Japan aut NATIONALLICENCE 700 1- Nishigaki Kazuhiko Second Department of Internal Medicine, Gifu University School of Medicine, 40 Tsukasa-machi, Gifu, 500, Gifu, Japan aut NATIONALLICENCE 700 1- Fujiwara Hisayoshi Second Department of Internal Medicine, Gifu University School of Medicine, 40 Tsukasa-machi, Gifu, 500, Gifu, Japan aut NATIONALLICENCE 773 0- Heart and Vessels Springer-Verlag 11/1(1996-01-01), 30-38 0910-8327 11:1<30 1996 11 380 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer