COMPUTER SIMULATION OF EXTERNAL COUNTERPULSATION.
Date of Original Version
External Counterpulsation is a method of enhancing the systemic circulation through the use of external pressure applied to the lower limbs in synchrony with the cardiac cycle. The legs of the patient or experimental animal are encased in a suit through which periodic pressures ranging from minus 50 to 300mmHg are introduced. The external pressure, when correctly applied, is capable of increasing diastolic pressure, increasing cardiac output, and decreasing ventricular pressure. However, the best form of treatment for a particular patient is not precisely known. In addition, most of the information about the method is from in vivo studies alone. The purpose of this investigation is to construct a computer model that is adequate to study hypotheses that consider the timing and waveshape of the external pressure. Subsequently, the external pressure is varied in the model under a set of constant arterial parameters and its effect on systolic pressure, diastolic pressure, and cardiac output are compared.
N Engl Bioeng Conf
Ohley, William J.. "COMPUTER SIMULATION OF EXTERNAL COUNTERPULSATION.." 4th , N Engl Bioeng Conf (1976): 333-336. https://digitalcommons.uri.edu/ele_facpubs/923