Biomaterial Database

Efficacy of a biomechanical counterpulsation device powered by skeletal muscle for right heart assist. 1990

T Doi, and T Mitsui, and S Matsushita, and T Tsutsui, and M Hori

Department of Surgery, University of Tsukuba, Ibaraki, Japan.

A valveless, single-orifice counterpulsation device powered by skeletal muscle was applied to the pulmonary artery for right heart assist. Latissimus dorsi muscles of six dogs had been electrically conditioned for four months in advance (Group 1); the muscles of eight dogs were not preconditioned (Group 2). A polyvinyl chloride balloon was placed beneath the latissimus dorsi muscle and connected to the left pulmonary artery using a noncollapsing graft. Latissimus dorsi muscle was paced synchronously to the cardiac cycle to produce pulmonary artery diastolic augmentation. Percent changes in diastolic augmentation pressure (% DAP) in the main PA was measured. Percent DAP after 180 min assistance was 91 +/- 10% in Group 1, whereas it decreased to 17 +/- 12% in Group 2 (p less than 0.001). These results demonstrate that electrically conditioned skeletal muscle is effective as a power source in right heart assist.

UI	MeSH Term	Description	Entries
D009119	Muscle Contraction	A process leading to shortening and/or development of tension in muscle tissue. Muscle contraction occurs by a sliding filament mechanism whereby actin filaments slide inward among the myosin filaments.	Inotropism,Muscular Contraction,Contraction, Muscle,Contraction, Muscular,Contractions, Muscle,Contractions, Muscular,Inotropisms,Muscle Contractions,Muscular Contractions
D001794	Blood Pressure	PRESSURE of the BLOOD on the ARTERIES and other BLOOD VESSELS.	Systolic Pressure,Diastolic Pressure,Pulse Pressure,Pressure, Blood,Pressure, Diastolic,Pressure, Pulse,Pressure, Systolic,Pressures, Systolic
D004285	Dogs	The domestic dog, Canis familiaris, comprising about 400 breeds, of the carnivore family CANIDAE. They are worldwide in distribution and live in association with people. (Walker's Mammals of the World, 5th ed, p1065)	Canis familiaris,Dog
D004867	Equipment Design	Methods and patterns of fabricating machines and related hardware.	Design, Equipment,Device Design,Medical Device Design,Design, Medical Device,Designs, Medical Device,Device Design, Medical,Device Designs, Medical,Medical Device Designs,Design, Device,Designs, Device,Designs, Equipment,Device Designs,Equipment Designs
D006339	Heart Rate	The number of times the HEART VENTRICLES contract per unit of time, usually per minute.	Cardiac Rate,Chronotropism, Cardiac,Heart Rate Control,Heartbeat,Pulse Rate,Cardiac Chronotropy,Cardiac Chronotropism,Cardiac Rates,Chronotropy, Cardiac,Control, Heart Rate,Heart Rates,Heartbeats,Pulse Rates,Rate Control, Heart,Rate, Cardiac,Rate, Heart,Rate, Pulse
D006353	Heart-Assist Devices	Small pumps, often implantable, designed for temporarily assisting the heart, usually the LEFT VENTRICLE, to pump blood. They consist of a pumping chamber and a power source, which may be partially or totally external to the body and activated by electromagnetic motors.	Artificial Ventricle,Heart Assist Device,Heart Ventricle, Artificial,Pumps, Heart-Assist,Vascular-Assist Device,Vascular-Assist Devices,Ventricle-Assist Device,Ventricular Assist Device,Artificial Heart Ventricle,Artificial Heart Ventricles,Artificial Ventricles,Assist Device, Heart,Assist Device, Ventricular,Assist Devices, Heart,Assist Devices, Ventricular,Device, Heart Assist,Device, Heart-Assist,Device, Vascular-Assist,Device, Ventricle-Assist,Device, Ventricular Assist,Devices, Heart Assist,Devices, Heart-Assist,Devices, Vascular-Assist,Devices, Ventricle-Assist,Devices, Ventricular Assist,Heart Assist Devices,Heart Ventricles, Artificial,Heart-Assist Device,Heart-Assist Pump,Heart-Assist Pumps,Pump, Heart-Assist,Pumps, Heart Assist,Vascular Assist Device,Vascular Assist Devices,Ventricle Assist Device,Ventricle, Artificial,Ventricle, Artificial Heart,Ventricle-Assist Devices,Ventricles, Artificial,Ventricles, Artificial Heart,Ventricular Assist Devices
D006439	Hemodynamics	The movement and the forces involved in the movement of the blood through the CARDIOVASCULAR SYSTEM.	Hemodynamic
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D001674	Bioelectric Energy Sources	Electric power supply devices which convert biological energy, such as chemical energy of metabolism or mechanical energy of periodic movements, into electrical energy.	Power Sources, Bioelectric,Biobatteries,Biofuel Cells,Microbial Fuel Cells,Biobattery,Bioelectric Energy Source,Bioelectric Power Source,Bioelectric Power Sources,Biofuel Cell,Cell, Biofuel,Cell, Microbial Fuel,Cells, Biofuel,Cells, Microbial Fuel,Energy Source, Bioelectric,Energy Sources, Bioelectric,Fuel Cell, Microbial,Fuel Cells, Microbial,Microbial Fuel Cell,Power Source, Bioelectric,Source, Bioelectric Energy,Source, Bioelectric Power,Sources, Bioelectric Energy,Sources, Bioelectric Power
D015908	Counterpulsation	A technique for assisting the circulation by decreasing the afterload of the left ventricle and augmenting the diastolic pressure. It may be achieved by intra-aortic balloon, or by implanting a special pumping device in the chest, or externally by applying a negative pressure to the lower extremities during cardiac systole.	Counterpulsation, External,Diastolic Counterpulsation,Counterpulsation, Diastolic,External Counterpulsation