Objective: Cardiopulmonary arrest is a devastating outcome of some clinical situations and requires strict implementation cardiopulmonary resuscitation (CPR) protocols. Since ultrasound one the recommended tools to determine presence cardiac movements may be predictor outcome, this study examined relationship between echocardiographic findings during CPR with patients’ outcomes. Methods: This c...

Correspondence to: Dr G André Ng, Department of Cardiovascular Sciences, Clinical Sciences Wing, Glenfield Hospital, Leicester LE3 9QP, UK; gan1@leicester. ac.uk _________________________ V entricular ectopic beats (VEBs) are commonly seen in daily clinical practice. They are largely asymptomatic but can cause upsetting symptoms in some patients. In normal hearts, their occurrence is usually as...

PURPOSE OF THE STUDY To investigate the effects of Therapeutic Touch (TT) on anxiety, vital signs, and cardiac dysrhythmia in women undergoing cardiac catheterization. DESIGN It was a quasi-experimental study. The participants had no history of hallucination, anxiety, or other psychological problems. Participants had to be conscious and have attained at least sixth-grade literacy level. Parti...

The quartz crystal microbalance (QCM) was used to study the variability of acoustic properties of living cells on the sub-second time scale. A confluent cell layer of rat cardiac myocytes was grown onto the electrode of quartz crystal resonator. The cell layer performed periodic, synchronous contractions at a rate of about 1.5 Hz. In order to monitor these rather fast changes in the state of th...

To determine the effect atherosclerosis has on myocardial contractility, we studied the contractile properties of right ventricular papillary muscles from 34 atherosclerotic and 17 control rabbits. We produced atherosclerosis by feeding for 2 to 8 months a diet of 5% lard, 5% peanut oil, 0.5% cholesterol, and 89.5% rabbit pellets. The controls received only rabbit pellets during the same time i...

1. Inflation of the cardiac stomach of the cod induced rhythmic contractions of the muscles and a slow increase in stomach volume towards a maximum. After deflation, the stomach remained relaxed and easily distensible for one or more hours. Section of the vagal tracts to the stomach did not change the response. 2. Inflation in vitro produced a somewhat faster relaxation and a much faster recove...

Ferrier, Gregory R., Isabel M. Redondo, Cindy A. Mason, Cindy Mapplebeck, and Susan E. Howlett. Regulation of contraction and relaxation by membrane potential in cardiac ventricular myocytes. Am J Physiol Heart Circ Physiol 278: H1618–H1626, 2000.—Control of contraction and relaxation by membrane potential was investigated in voltageclamped guinea pig ventricular myocytes at 37°C. Depolarizatio...

Instantaneous contractile element velocity was calculated from left ventricular pressure and its first derivative during isovolumic left ventricular contractions produced by sudden balloon occlusion of the ascending aorta during diastole in closed-chest, sedated dogs. Wall tension was derived from ventricular pressure and volume, the latter being obtained from the pressure-volume relation of th...

Human embryonic stem cell (hESC) progenies hold great promise as surrogates for human primary cells, particularly if the latter are not available as in the case of cardiomyocytes. However, high content experimental platforms are lacking that allow the function of hESC-derived cardiomyocytes to be studied under relatively physiological and standardized conditions. Here we describe a simple and r...

Introduction: Cardiac pacing is indicated for sick sinus syndrome. It performed with a pacemaker via electrodes implanted in the heart. This technique has several disadvantages. The search alternative methods of cardiac underway. One them control heart rhythm through stimulation tragus.
 Objective: To perform reflex sinoatrial node and to study influence SS-68 substance on it.
 Materi...