listen to the heart sounds gives us valuable information about existence of disorder in heart rate and rhythm, ventricular fibrillation and movement of blood through valves. this required a lot of skills. so it is necessary to understand and apply these skills for nurses in cardiac and intensive care. abnormal sounds can be recognized by them. for facilitation this work, nurses should be have i...

Heart diseases are among the most important causes of mortality in the world, especially in industrial countries. Using heart sounds and the features extracted from them are among the non-aggressive diagnosis and prognosis methods for heart diseases. In this study, the time-scale, Cepstral, frequency, temporal and turbulence features are saved and extracted from the heart sounds, and then they ...

Background: The basic requirements for monitoring anesthetized patients during surgery are assessing cardiac and respiratory function. Esophageal stethoscopes have been developed for this purpose, but these devices may not provide clear heart and lung sound due to existence of various noises in operating rooms. In addition, the stethoscope is not applicable for continues monitoring, and it is u...