Hypertrophy of Neurons Within Cardiac Ganglia in Human, Canine
... Mixed cell cultures of neonate rat atrial tissue were prepared by rinsing atrial tissue in Hank’s solution (Sigma) containing penicillin and streptomycin (5 mL; Sigma); the tissue was first cut and then digested with trypsin (0.4 mg/mL; Sigma) and collagenase (1.2 mg/mL; Sigma) for 1 hour at 37°C. Re ...
... Mixed cell cultures of neonate rat atrial tissue were prepared by rinsing atrial tissue in Hank’s solution (Sigma) containing penicillin and streptomycin (5 mL; Sigma); the tissue was first cut and then digested with trypsin (0.4 mg/mL; Sigma) and collagenase (1.2 mg/mL; Sigma) for 1 hour at 37°C. Re ...
Cardiac Rhythm Management Devices (Part I)
... delay, progression to more advanced AVHB is unlikely, and pacing is usually not indicated.10 With type 2° AVHB within or below the His bundle, symptoms are frequent, prognosis is poor, and progression to 3° AVHB is common.10 Nonrandomized studies strongly suggest that pacing improves survival for pa ...
... delay, progression to more advanced AVHB is unlikely, and pacing is usually not indicated.10 With type 2° AVHB within or below the His bundle, symptoms are frequent, prognosis is poor, and progression to 3° AVHB is common.10 Nonrandomized studies strongly suggest that pacing improves survival for pa ...
Successful management of left main coronary artery
... with mechanical valves has been performed for several years. Warfarin has been used in patients with mechanical heart valves to protect against thromboembolic complications; nevertheless, in these patients, thromboembolic event rates range from 0.5% to 1.7%. Acute occlusive embolism to the coronary ...
... with mechanical valves has been performed for several years. Warfarin has been used in patients with mechanical heart valves to protect against thromboembolic complications; nevertheless, in these patients, thromboembolic event rates range from 0.5% to 1.7%. Acute occlusive embolism to the coronary ...
Structural mechanics of the mosquito heart and its function in
... Mosquitoes were anesthetized on ice for less than 1min and restrained dorsal-side-up on Sylgard 184 silicone plates (Dow Corning Corp, Midland, MI, USA) or agarose slides by placing 0.15mm diameter pins gently against (not through) the anterior pronotal lobe (Fig.1A). The wings were then teased l ...
... Mosquitoes were anesthetized on ice for less than 1min and restrained dorsal-side-up on Sylgard 184 silicone plates (Dow Corning Corp, Midland, MI, USA) or agarose slides by placing 0.15mm diameter pins gently against (not through) the anterior pronotal lobe (Fig.1A). The wings were then teased l ...
Reduce Infarct Size
... Jennings and co-workers in 1960 • Injury that occurs to the heart during reperfusion causes four types of dysfunction – Myocardial stunning- dysfunction post reperfusion despite absence of irreversible damage – No-reflow phenomenon – impedence of microvascular flow after reperfusion – Reperfusion ar ...
... Jennings and co-workers in 1960 • Injury that occurs to the heart during reperfusion causes four types of dysfunction – Myocardial stunning- dysfunction post reperfusion despite absence of irreversible damage – No-reflow phenomenon – impedence of microvascular flow after reperfusion – Reperfusion ar ...
national audit of cardiac rhythm management devices
... The British Heart Rhythm Society is an affiliated group of the British Cardiovascular Society and the Arrhythmia Alliance, and is dedicated to improving all aspects of cardiac arrhythmia care and electrical device based therapies. It provides an essential link between professionals working within pa ...
... The British Heart Rhythm Society is an affiliated group of the British Cardiovascular Society and the Arrhythmia Alliance, and is dedicated to improving all aspects of cardiac arrhythmia care and electrical device based therapies. It provides an essential link between professionals working within pa ...
THE ROLE OF THE THEBESIAN VESSELS IN THE CIRCULATION
... the beginning of systole. After thus answering the question so satisfactorily to himself, he gave due credit and much praise to the Creator for being so foresighted as to anticipate the need and usefulness of these little vessels. Thebesius also stated that while he was writing his paper he was show ...
... the beginning of systole. After thus answering the question so satisfactorily to himself, he gave due credit and much praise to the Creator for being so foresighted as to anticipate the need and usefulness of these little vessels. Thebesius also stated that while he was writing his paper he was show ...
Increased high-frequency heart rate variability during insulin
... hypoglycaemia. Several methodological differences may explain this difference. The study by Laitinen et al. [8] used a paced breathing protocol at 0.2 Hz. In general, this method has some advantages, because respiratory frequency clearly has an impact on HRV [22,29] and, thus, may confound findings. ...
... hypoglycaemia. Several methodological differences may explain this difference. The study by Laitinen et al. [8] used a paced breathing protocol at 0.2 Hz. In general, this method has some advantages, because respiratory frequency clearly has an impact on HRV [22,29] and, thus, may confound findings. ...
Lecture 7_CV_2016
... The chemosensitive cells are located in the 2 mm sized chemoreceptor organs (two carotid bodies, one of which lies in the bifurcation of each common carotid artery, and usually one to three aortic bodies adjacent to the aorta). The chemoreceptors excite nerve fibers that, along with the baroreceptor ...
... The chemosensitive cells are located in the 2 mm sized chemoreceptor organs (two carotid bodies, one of which lies in the bifurcation of each common carotid artery, and usually one to three aortic bodies adjacent to the aorta). The chemoreceptors excite nerve fibers that, along with the baroreceptor ...
The coronary angiographic analysis of 16573 patients for coronaro
... fistulas include the presence of a large or increasing left-to-right shunt, left ventricular volume overload, myocardial ischaemia, left ventricular dysfunction, congestive cardiac failure and for prevention of endocarditis/endarteritis. Declaration of Interest: None declared. ...
... fistulas include the presence of a large or increasing left-to-right shunt, left ventricular volume overload, myocardial ischaemia, left ventricular dysfunction, congestive cardiac failure and for prevention of endocarditis/endarteritis. Declaration of Interest: None declared. ...
A-A Pacemaker Patient Information Booklet.indd
... After the procedure, you will be taken back to the ward. You will be asked to lie in bed for a couple of hours before you can get up, eat and drink. Your heart rhythm may be monitored for a while to make sure that the pacemaker is doing its job, so you may be attached to an ECG monitor. As the wound ...
... After the procedure, you will be taken back to the ward. You will be asked to lie in bed for a couple of hours before you can get up, eat and drink. Your heart rhythm may be monitored for a while to make sure that the pacemaker is doing its job, so you may be attached to an ECG monitor. As the wound ...
Development of the Heart
... external sulcus marks the site of future separation of definitive ventricles (see below). In the posterior view, illustrated here on the right, growth and expansion have also created a more transversely oriented atrial dilation that has been pulled posteriorly and cephalically. ...
... external sulcus marks the site of future separation of definitive ventricles (see below). In the posterior view, illustrated here on the right, growth and expansion have also created a more transversely oriented atrial dilation that has been pulled posteriorly and cephalically. ...
12/07 Atrial Septal Defects
... increases in right-sided pressure. TEE is much more sensitive than TTE for detection of left-to-right shunt as negative right atrial contrast (93% vs. 58% in one study). TEE can detect flow through multiple ASDs. ...
... increases in right-sided pressure. TEE is much more sensitive than TTE for detection of left-to-right shunt as negative right atrial contrast (93% vs. 58% in one study). TEE can detect flow through multiple ASDs. ...
Full Text - Verlag der Zeitschrift für Naturforschung
... of Rothstein et al. (2005). The effects of compounds 1 and 2 on the level of [Ca2+]i in single myocytes were measured. KCl and Tyrode’s solution, containing less than 0.3‰ dimethyl sulfoxide (DMSO), were used as positive and negative controls, respectively. Briefly, isolated ventricular myocytes wer ...
... of Rothstein et al. (2005). The effects of compounds 1 and 2 on the level of [Ca2+]i in single myocytes were measured. KCl and Tyrode’s solution, containing less than 0.3‰ dimethyl sulfoxide (DMSO), were used as positive and negative controls, respectively. Briefly, isolated ventricular myocytes wer ...
Cardiac Motion Analysis to Improve Pacing Site Selection in CRT1
... Rationale and Objectives: The aim of the study is to build cardiac wall motion models to characterize mechanical dyssynchrony and predict pacing sites for the left ventricle of the heart in cardiac resynchronization therapy (CRT). Materials and Methods: Cardiac magnetic resonance imaging data from 2 ...
... Rationale and Objectives: The aim of the study is to build cardiac wall motion models to characterize mechanical dyssynchrony and predict pacing sites for the left ventricle of the heart in cardiac resynchronization therapy (CRT). Materials and Methods: Cardiac magnetic resonance imaging data from 2 ...
High Premature Atrial Complex Loads Indicate a High Central Aortic
... population, AF is associated with aortic atherosclerosis and stiffness. This association is related to age since both atrial fibrillation and aortic atherosclerosis are more frequent in the elderly.6 We hypothesized that high PAC loads might be associated with aortic stiffness in lowrisk young subje ...
... population, AF is associated with aortic atherosclerosis and stiffness. This association is related to age since both atrial fibrillation and aortic atherosclerosis are more frequent in the elderly.6 We hypothesized that high PAC loads might be associated with aortic stiffness in lowrisk young subje ...
10th Belgian heart rhythm meeting Arrhythmias for every Cardiologist
... With this meeting, gathering annually over 800 participants, we offer the opportunity to all cardiologists to update their knowledge with the most recent scientific data and innovations in clinical rhythmology. The scientific programme, presented by a distinguished national and international faculty ...
... With this meeting, gathering annually over 800 participants, we offer the opportunity to all cardiologists to update their knowledge with the most recent scientific data and innovations in clinical rhythmology. The scientific programme, presented by a distinguished national and international faculty ...
1 - Unit 5 Thorax Objectives
... 1. Describe the general function of the thorax as well as its general divisions. 2. Describe and discuss the components and general organization of the thorax and thoracic viscera as well as it relationship with other regions of the body (neck, upper limb, abdomen, and breast). 3. Identify and descr ...
... 1. Describe the general function of the thorax as well as its general divisions. 2. Describe and discuss the components and general organization of the thorax and thoracic viscera as well as it relationship with other regions of the body (neck, upper limb, abdomen, and breast). 3. Identify and descr ...
Signal Processing Methods for Heart Rate Variability
... Source nodes of electrical stimulation within the heart. . . . . . . . . . . . . . . . . . . One second of a typical ECG waveform for one heart beat. The vertical axis represents the mV fluctuations scaled to 1 over the whole record. The horizontal (time) axis shows the sample number (with a sampli ...
... Source nodes of electrical stimulation within the heart. . . . . . . . . . . . . . . . . . . One second of a typical ECG waveform for one heart beat. The vertical axis represents the mV fluctuations scaled to 1 over the whole record. The horizontal (time) axis shows the sample number (with a sampli ...
Print - Circulation
... Piezoelectric Division, PZT5A, flat and cyclinder) were inserted into the anterior left ventricular free wall at midmyocardial level perpendicular to the long axis of the heart, and the distance between them was measured (Hartley Multichannel Flow-Dimension System) as an index of preload. Pacing wir ...
... Piezoelectric Division, PZT5A, flat and cyclinder) were inserted into the anterior left ventricular free wall at midmyocardial level perpendicular to the long axis of the heart, and the distance between them was measured (Hartley Multichannel Flow-Dimension System) as an index of preload. Pacing wir ...
during fetal life - Journal of Clinical Pathology
... of the right. Muller (1883) and Emery and Macdonald (1960) found that the right ventricle, which included the free wall and half the septum became heavier than the left after 28 weeks' gestation. In the present series, doubtless due to the different method, the right ventricle did not become heavier ...
... of the right. Muller (1883) and Emery and Macdonald (1960) found that the right ventricle, which included the free wall and half the septum became heavier than the left after 28 weeks' gestation. In the present series, doubtless due to the different method, the right ventricle did not become heavier ...
Left Ventricular Volume
... largely to the resonance of the quartz crystal used to generate the echo signal and also in part to the resolution of the recording apparatus. It is therefore possible that while commonly employed interventions may induce alterations in left ventricular volume, these changes may be within the limits ...
... largely to the resonance of the quartz crystal used to generate the echo signal and also in part to the resolution of the recording apparatus. It is therefore possible that while commonly employed interventions may induce alterations in left ventricular volume, these changes may be within the limits ...
Cardiovascular examination
... disappears before the real diastolic pressure and reappears again to disappear again at the real diastolic pressure . the difference between the two readings Is the auscultatory gap. It may overestimate the diastolic BP. Or one may start mesuring systolic pressure from it and get a falsely low systo ...
... disappears before the real diastolic pressure and reappears again to disappear again at the real diastolic pressure . the difference between the two readings Is the auscultatory gap. It may overestimate the diastolic BP. Or one may start mesuring systolic pressure from it and get a falsely low systo ...
Electrocardiography
Electrocardiography (ECG or EKG*) is the process of recording the electrical activity of the heart over a period of time using electrodes placed on a patient's body. These electrodes detect the tiny electrical changes on the skin that arise from the heart muscle depolarizing during each heartbeat.In a conventional 12 lead ECG, ten electrodes are placed on the patient's limbs and on the surface of the chest. The overall magnitude of the heart's electrical potential is then measured from twelve different angles (""leads"") and is recorded over a period of time (usually 10 seconds). In this way, the overall magnitude and direction of the heart's electrical depolarization is captured at each moment throughout the cardiac cycle. The graph of voltage versus time produced by this noninvasive medical procedure is referred to as an electrocardiogram (abbreviated ECG or EKG).During each heartbeat, a healthy heart will have an orderly progression of depolarization that starts with pacemaker cells in the sinoatrial node, spreads out through the atrium, passes through the atrioventricular node down into the bundle of His and into the Purkinje fibers spreading down and to the left throughout the ventricles. This orderly pattern of depolarization gives rise to the characteristic ECG tracing. To the trained clinician, an ECG conveys a large amount of information about the structure of the heart and the function of its electrical conduction system. Among other things, an ECG can be used to measure the rate and rhythm of heartbeats, the size and position of the heart chambers, the presence of any damage to the heart's muscle cells or conduction system, the effects of cardiac drugs, and the function of implanted pacemakers.