caa a22 4500 477112773 CHVBK 20180405111614.0 cr unu---uuuuu 170330e19960501xx s 000 0 eng 10.1007/BF01745172 doi (NATIONALLICENCE)springer-10.1007/BF01745172 Changes in diastolic regional stiffness of the left ventricle before and after coronary artery bypass grafting [Elektronische Daten] [Ryuji Higashita, Motoaki Sugawara, Yukiyoshi Kondoh, Yasushi Kawai, Kito Mitsui, Satoshi Ohki, Shoichi Tange, Shyuichi Ichikawa, Kozo Suma] Summary: To evaluate the effect of coronary artery bypass grafting (CABG) on regional diastolic function of the left ventricular wall, we applied the concept of the stiffness constant to the diastolic σ-ln (1/H) relation, where σ is the mean wall stress, and H is the wall thickness of the region of concern, and ln (1/H) is the natural logarithm of the reciprocal of wall thickness. We assessed 12 cardiac regions in six patients with coronary artery disease who underwent CABG at the Cardiovascular Hospital of Central Japan between May 1994 and January 1995. Left ventricular pressure and regional wall thickness were measured simultaneously, with a micromanometer-tipped catheter and by twodimensional echocardiography, respectively, before and after CABG. The stiffness constant (K) was obtained by fitting the diastolic σ-ln (1/H) data points to an exponential curve with zero asymptote: σ = Cexp[Kln (1/H)]. Preoperatively, the stiffness constant in the affected region (CABG region) was greater than that in the unaffected region (non-CABG region) (4.79 ± 2.56 vs 2.95 ± 0.72). Postoperatively, the stiffness constant in the CABG region was significantly decreased, to 3.21 ± 1.22. The stiffness constant, which is derived from the σ-ln (1/H) relation, is useful for the assessment of LV regional diastolic function. Springer-Verlag, 1996 Regional diastolic function nationallicence Stiffness constant nationallicence Regional work nationallicence Coronary artery bypass grafting nationallicence Higashita Ryuji Department of Cardiovascular Surgery, Cardiovascular Hospital of Central Japan, 740 Shimohakoda, Hokkitsu-mura, Seta-gun, 377, Gunma, Japan aut Sugawara Motoaki Department of Cardiovascular Sciences, Tokyo Women's Medical College, 8-1 Kawada-cho, Shinjuku-ku, 162, Tokyo, Japan aut Kondoh Yukiyoshi Department of Cardiovascular Sciences, Tokyo Women's Medical College, 8-1 Kawada-cho, Shinjuku-ku, 162, Tokyo, Japan aut Kawai Yasushi Department of Cardiovascular Surgery, Cardiovascular Hospital of Central Japan, 740 Shimohakoda, Hokkitsu-mura, Seta-gun, 377, Gunma, Japan aut Mitsui Kito Department of Cardiovascular Surgery, Cardiovascular Hospital of Central Japan, 740 Shimohakoda, Hokkitsu-mura, Seta-gun, 377, Gunma, Japan aut Ohki Satoshi Department of Cardiovascular Surgery, Cardiovascular Hospital of Central Japan, 740 Shimohakoda, Hokkitsu-mura, Seta-gun, 377, Gunma, Japan aut Tange Shoichi Department of Internal Medicine, Cardiovascular Hospital of Central Japan, 740 Shimohakoda, Hokkitsu-mura, Seta-gun, 377, Gunma, Japan aut Ichikawa Shyuichi Department of Internal Medicine, Cardiovascular Hospital of Central Japan, 740 Shimohakoda, Hokkitsu-mura, Seta-gun, 377, Gunma, Japan aut Suma Kozo Department of Cardiovascular Surgery, Tokyo Women's Medical College Daini Hospital, 2-1-10 Nishiogu, Arakawa-ku, 116, Tokyo, Japan aut Heart and Vessels Springer-Verlag 11/3(1996-05-01), 145-151 0910-8327 11:3<145 1996 11 380 https://doi.org/10.1007/BF01745172 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01745172 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Higashita Ryuji Department of Cardiovascular Surgery, Cardiovascular Hospital of Central Japan, 740 Shimohakoda, Hokkitsu-mura, Seta-gun, 377, Gunma, Japan aut NATIONALLICENCE 700 1- Sugawara Motoaki Department of Cardiovascular Sciences, Tokyo Women's Medical College, 8-1 Kawada-cho, Shinjuku-ku, 162, Tokyo, Japan aut NATIONALLICENCE 700 1- Kondoh Yukiyoshi Department of Cardiovascular Sciences, Tokyo Women's Medical College, 8-1 Kawada-cho, Shinjuku-ku, 162, Tokyo, Japan aut NATIONALLICENCE 700 1- Kawai Yasushi Department of Cardiovascular Surgery, Cardiovascular Hospital of Central Japan, 740 Shimohakoda, Hokkitsu-mura, Seta-gun, 377, Gunma, Japan aut NATIONALLICENCE 700 1- Mitsui Kito Department of Cardiovascular Surgery, Cardiovascular Hospital of Central Japan, 740 Shimohakoda, Hokkitsu-mura, Seta-gun, 377, Gunma, Japan aut NATIONALLICENCE 700 1- Ohki Satoshi Department of Cardiovascular Surgery, Cardiovascular Hospital of Central Japan, 740 Shimohakoda, Hokkitsu-mura, Seta-gun, 377, Gunma, Japan aut NATIONALLICENCE 700 1- Tange Shoichi Department of Internal Medicine, Cardiovascular Hospital of Central Japan, 740 Shimohakoda, Hokkitsu-mura, Seta-gun, 377, Gunma, Japan aut NATIONALLICENCE 700 1- Ichikawa Shyuichi Department of Internal Medicine, Cardiovascular Hospital of Central Japan, 740 Shimohakoda, Hokkitsu-mura, Seta-gun, 377, Gunma, Japan aut NATIONALLICENCE 700 1- Suma Kozo Department of Cardiovascular Surgery, Tokyo Women's Medical College Daini Hospital, 2-1-10 Nishiogu, Arakawa-ku, 116, Tokyo, Japan aut NATIONALLICENCE 773 0- Heart and Vessels Springer-Verlag 11/3(1996-05-01), 145-151 0910-8327 11:3<145 1996 11 380 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer