Acute auditory stimulation with different styles of music influences cardiac autonomic regulation in men.

Background: No clear evidence is available in the literature regarding the acute effect of different styles of music on cardiac autonomic control.

Objectives: The present study aimed to evaluate the acute effects of classical baroque and heavy metal musical auditory stimulation on Heart Rate Variability (HRV) in healthy men.

Patients And Methods: In this study, HRV was analyzed regarding time (SDNN, RMSSD, NN50, and pNN50) and frequency domain (LF, HF, and LF / HF) in 12 healthy men.

Evaluation of physiological parameters before and after respiratory physiotherapy in newborns with acute viral bronchiolitis.

Background: Acute viral bronchiolitis is a respiratory disease with high morbidity that affects newborn in the first two years of life. Its treatment with physiotherapy has been highlighted as an important tool, however, there is no consensus regarding its effects on patients improvement. We aimed to evaluate the physiological parameters before and after the procedure respiratory therapy in newborn with acute viral bronchiolitis.

Congenital diaphragmatic Bochdaleck hernia: case report.

Congenital diaphragmatic Bochdaleck hernia is an anatomical defect of the diaphragm, which allows protrusion of abdominal viscera into the chest, causing serious pulmonary and cardiac complications in the neonate. In this study we aimed to present a case of congenital Bochdaleck hernia. We investigated a 40 weeks old child, with a pregnancy carried out in a public hospital in Passo Fundo, Rio Grande do Sul, Brazil.

Evaluation of movements of lower limbs in non-professional ballet dancers: hip abduction and flexion.

Background: The literature indicated that the majority of professional ballet dancers present static and active dynamic range of motion difference between left and right lower limbs, however, no previous study focused this difference in non-professional ballet dancers. In this study we aimed to evaluate active movements of the hip in non-professional classical dancers.

Methods: We evaluated 10 non professional ballet dancers (16-23 years old).

Strain differences in baroceptor reflex in adult Wistar Kyoto rats.

Objectives: A subset of normotensive Sprague-Dawley rats show lower baroreflex sensitivity; however, no previous study investigated whether there are differences in baroreflex sensitivity within this subset. Our study compared baroreflex sensitivity among conscious rats of this specific subtype.

Methods: Male Wistar Kyoto (WKY) rats (16 weeks old) were studied.

Cardiac baroreflex is already blunted in eight weeks old spontaneously hypertensive rats.

Background: The literature did not evidence yet with which age spontaneously hypertensive rats (SHR) start to present baroreflex reduction. We endeavored to evaluate the baroreflex function in eight-week-old SHR.

Methods: Male Wistar Kyoto (WKY) normotensive rats and SHR aged eight weeks were studied.

Vehicle influence on potassium replacement effectiveness in hypokalemic rats.

Introduction: Patients who undergo cardiac surgery are commonly treated with diuretic therapy for the management of volume overload. The concern of hypokalemia important in the adult population submitted to cardiac surgery has been described. Intravenous potassium (K+) replacement dilution is only recommended with sodium chloride 0.