Zobrazeno 1 - 10
of 72
pro vyhledávání: '"Kouichi Tokunaga"'
Publikováno v:
Pacing and Clinical Electrophysiology. 19:1740-1747
The benefits of the automatic DDD (DDD/AMC) mode in the Chorus II pacemaker (Chorus 6234; Ela Medical Inc.), which automatically switches the modes between DDD and AAI to respect spontaneous AV conduction as much as possible in AAI while preserving s
Publikováno v:
Surgery Today. 24:415-419
A retrospective study was conducted on 124 patients who underwent re-replacement of previously implanted prosthetic heart valves for structural valve failure, prosthetic valve endocarditis, periprosthetic leak, a thrombosed valve, hemolysis, or proph
Publikováno v:
Japanese Circulation Journal. 58:894-902
The present study was performed to determine whether the effects of ischemic preconditioning are mediated by a decrease in myocardial contractile activity or by a change in catabolite accumulation during the subsequent period of sustained ischemia. I
Autor:
Yoshito Kawachi, Kenji Sunagawa, K. Fukamachi, Kouichi Tokunaga, T. Asou, K. Kishizaki, M. Oe
Publikováno v:
The Journal of Thoracic and Cardiovascular Surgery. 106:1138-1146
The mitral apparatus can affect left ventricular function through various mechanisms, such as the direct mechanical coupling between the mitral anulus and papillary muscle and the mitral annular contraction. To evaluate the relative contribution of t
Autor:
Takahiro Nishida, Kouji Matsuzaki, Kouji Fukae, Fumio Fukumura, Hisataka Yasui, Kazuyuki Miyamoto, Kouichi Tokunaga, Manabu Hisahara, Ryuji Tominaga, Shigehiko Tokunaga, Yasuo Kanegae, Atsuhiro Nakashima
Publikováno v:
ASAIO Journal. 39:M185-M189
To evaluate the effect of tranexamic acid (TA) on blood loss after cardiopulmonary bypass (CPB), 157 patients who underwent elective valve replacement operations were studied, with one group of 90 patients receiving tranexamic acid (Group TA) and 67
Autor:
Atsuhiro Nakashima, Manabu Hisahara, Ryuji Tominaga, Kouichi Tokunaga, Hisataka Yasui, Yoshito Kawachi
Publikováno v:
The Journal of Thoracic and Cardiovascular Surgery. 104:1561-1566
From February 1975 to August 1981, 23 consecutive patients underwent tricuspid valve replacement, which was either isolated (six patients) or combined with the replacement of other valves (17) by means of a standard, glutaraldehyde-preserved Hancock
Autor:
Kohji Matsuzaki, Atsuo Mitani, Hisataka Yasui, Hisanori Mayumi, Yoshihiro Toshima, Hiroyuki Kohno, Kouichi Tokunaga
Publikováno v:
The Journal of Thoracic and Cardiovascular Surgery. 104:1572-1581
The following hypotheses were tested using an isolated perfused working rat heart model: (1) Collins' solution for cold storage of the heart is harmful for the heart during reperfusion; (2) a "reverse" of the intracellular-type Collins' solution with
Autor:
Yoshikazu Tsuruhara, Kazuhiro Kurisu, Atsuo Mitani, Kazuhiko Kinoshita, Masato Sakamoto, Kiyotaka Fukamachi, Fumio Fukumura, Kouichi Tokunaga, Atsuhiro Nakashima
Publikováno v:
Cardiovascular Research. 26:1040-1045
Objective: The aim was to investigate the effects of a calcium antagonist (diltiazem) and a catecholamine (noradrenaline) on extracellular potassium accumulation during global ischaemia. Methods: Extracellular potassium concentration ([K+]e) was meas
Autor:
Hisanori Mayumi, Hisataka Yasui, Kouichi Tokunaga, Atsuo Mitani, Kohji Matsuzaki, Hiroyuki Kohno, Yoshihiro Toshima
Publikováno v:
The Journal of Thoracic and Cardiovascular Surgery. 104:1320-1328
Mechanisms and kinetics of the effects of the ionic composition of two different storage solutions, an intracellular type and an extracellular type, were analyzed by examining the myocardial functional and metabolic recovery processes during the earl
Publikováno v:
The Annals of Thoracic Surgery. 53:999-1005
To assess the underlying mechanisms of ventricular fibrillation induced by myocardial reperfusion after cardioplegic arrest, 62 patients undergoing an open heart operation were divided into two groups based on the absence (group 1, n = 37) or the dev