Publications [#64832] of Miguel A Nicolelis

Papers Published

1. Lage, S.G. and Gutierrez, M.A. and Nicolelis, M.A.L. and Furuie, S.S. (1987). Bedside computerized system for monitoring and processing of biological signals in intensive care units. Computers in Cardiology, 561 - 564.
   (last updated on 2007/04/15)

   Abstract:
   A description is given of the application of a generic bedside system, developed using an IBM-PC compatible, with the aim of getting essential biological signals to perform a complete cardiovascular function analysis. Six cardiac patients with critical heart failure impaired by arrhythmia, infection, pulmonary embolism and myocardial infarction were monitored through: (a) ECG; (b) VCG; (c) hemodynamic data (right atrial pressure, pulmonary arterial pressure, pulmonary wedge pressure, systemic pressure); (d) cardiac output (thermodilution and thoracic electrical bioimpedance); (e) dZ/dt of TEB. These signals were stored and processed to furnish the electrical-hemodynamic coupling correlation. As a control, the results of the cardiac output calculated by TEB were compared to the thermodilution method. The dZ/dt wave together with the ECG and hemodynamic signals allowed continuous determination of the pre-ejection period, ventricular ejection time, isovolumetric relaxation, time and ventricular filling period. The system also permitted several devices to be interfaced to the microcomputer, a better therapeutic approach for critical patients, as well as providing data for medical education and research.