It is well known that an auricular sound can sometimes be recognized by means of the stethoscope or phonocardiogram. In some instances it can be shown that the so-called first heart sound consists of a fusion of an auricular sound with a ventricular sound, and this may be evident in cases with prolongation of the P-R interval. This, however, is generally not easily recognized; otherwise there s...

Background: Invasive procedures could change the physiological responses of neonates. The present study aimed to evaluate the effect of the sound of the Holy Quran on the physiological responses and pain caused by heel stick blood sampling in neonates. Methods: This three-stage, two-group, clinical trial was conducted on 72 hospitalized term neonates at the neonatal intensive care unit (NICU) ...

Phonocardiography is a widely used method of listening to the heart sounds and indicating the presence of cardiac abnormalities. Each heart cycle consists of two major sounds - S1 and S2 - that can be used to determine the heart rate. The conventional method of acoustic signal acquisition involves placing the sound sensor at the chest where this sound is most audible. Presented is a novel algor...

dynamic correlates of the third heart sound. Am J Physiol 207: 319, 1964 7. Prewitt T, Gibson D, Brown D, Sutton G: The 'rapid filling wave' of the apexcardiogram: its relation to echocardiographic and cineangiographic measurements of ventricular filling. Br Heart J 37: 1256, 1975 8. Boyer NH, Eckstein RW, Wiggers CJ: The characteristics of normal heart sounds recorded by direct methods. Am Hea...

introduction: hearing impairment is the most frequent sensorial congenital defect in newborns and has increased to 2–4 cases per 1,000 live births. sensory-neural hearing loss (snhl) accounts for more than 90% of all hearing loss. this disorder is associated with other congenital disorders such as renal, skeletal, ocular, and cardiac disorders. given that congenital heart diseases are life-thre...

OBJECTIVE To measure and describe hospital noise and determine whether noise can be correlated with nursing stress measured by questionnaire, salivary amylase, and heart rate. DESIGN Cohort observational study. SETTING Tertiary care center pediatric intensive care unit. SUBJECTS Registered nurses working in the unit. INTERVENTIONS None. MEASUREMENTS AND MAIN RESULTS Eleven nurse volun...

Study of the disease demographics in human population indicates that cardiac ailments are the primary cause of premature death, and a need for emergent technologies is felt to address the rising trend. However, development of automated heart sound analysis system and its usage at the grassroot levels for cardiac pre-screening have been hindered by the lack proper understanding of the intrinsic ...