Postural Changes in Blood Distribution and Its Relation to the Change in Cardiac Output.

Continuous and Cuffless Blood Pressure Monitoring Based on ECG and SpO2 Signals By Using Microsoft Visual C Sharp

Background: One of the main problems especially in operating room and monitoring devices is measurement of Blood Pressure (BP) by sphygmomanometer cuff.Objective: In this study we designed a new method to measure BP changes continuously for detecting information between cuff inflation times by using vital signals in monitoring devices. This will be achieved by extraction of the time difference ...

  Background & Objective : Heart failure is a clinical syndrome and increases in rate by aging. Because changes in ECG and electrolytes are variable, specific and sometimes independent to the disease with different methods to be diagnosed, in this study we tried to find a way to diagnose them.   Materials & Methods: This is a retrospective descriptive-analytic study. Data was collected from dec...

A System for Continuous Estimating and Monitoring Cardiac Output via Arterial Waveform Analysis

Background: Cardiac output (CO) is the total volume of blood pumped by the heart per minute and is a function of heart rate and stroke volume. CO is one of the most important parameters for monitoring cardiac function, estimating global oxygen delivery and understanding the causes of high blood pressure. Hence, measuring CO has always been a matter of interest to researchers and clinicians. Sev...

Stimulation of the vestibular system by head movement or changes in gravitational forces is known to induce sympathoexcitation

A postural change from a recumbent to an upright position induces an increase in the hydrostatic pressure gradient, a footward fluid shift, reduced venous return and cardiac output, and reduced arterial pressure (AP). This reduction in AP is sensed by baroreceptors in the blood vessels, and AP is thought to be stabilized by the arterial baroreflex, an important negative feedback process. Altern...

The effect of eight weeks of cardiac rehabilitation on hemodynamic parameters and blood lipid profile in male patients 55-70 years old CABG coronary artery bypass graft surgery

Extended Abstract 1.Introduction According to the World Health Organization (2010), cardiovascular disease (CHD) is the most common cause of death worldwide (1). Sadeghpour et al. (2010) have shown that one of the most common problems after coronary artery bypass grafting is extensive hemodynamic changes. Incomplete drainage of blood and blood fluid from the pericardium and pleura reduces hea...