Evaluation of effectiveness and reliability of a ventricular assist pump system: Report of a cooperative clinical trial

概要

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A ventricular assist device system developed at National Cardiovascular Center, produced by TOYOBO, was clinically evaluated at four different institutes. The system consists of an air-driven, diaphragmtype pump made of segmented polyether polyurethane and a control-drive unit with an automatic level control system of atrial pressure and blood flow. Ten patients, eight adults and two children, with profound heart failure were treated with this system for 45min-12days. Seven of them were applied with a left VAD and three with right VAD. Four cases recovered to be weaned from the system and three patients were long-term survivors. The pump showed excellent anti-thrombogenicity and durability. The control-drive unit functioned correctly without any troubles including the automatic level control system. In conclusion, this VAD system is effective and reliable to treat clinical profound-heart-failure cases. We believe that many patients with profound heart failure will be saved by a well-established therapeutic system with VAD.
一般社団法人日本人工臓器学会の論文