Pacemaker activity in an insect heart
... muscle fibres in the region where the heart and the aorta join. The second, a suction electrode, was placed over the free end of the aorta (see electrode I in the inset of Fig. 2) to record extracellularly the electrical activity of the group of aortic muscle fibres. Simultaneous recordings, using t ...
... muscle fibres in the region where the heart and the aorta join. The second, a suction electrode, was placed over the free end of the aorta (see electrode I in the inset of Fig. 2) to record extracellularly the electrical activity of the group of aortic muscle fibres. Simultaneous recordings, using t ...
full text pdf
... therapeutic range, which leads to severe adverse effects on many organ systems (6). Nandrolone is a derivate of 19-nortestosterone and is most often administered in the form of depot preparations. Today, it is the one of the most popular AAS among athletes. It has a stronger anabolic effect than tes ...
... therapeutic range, which leads to severe adverse effects on many organ systems (6). Nandrolone is a derivate of 19-nortestosterone and is most often administered in the form of depot preparations. Today, it is the one of the most popular AAS among athletes. It has a stronger anabolic effect than tes ...
Congenital Heart Defects in Adulthood
... Cardiac problems during follow-up Interventions and repeat interventions Although most patients undergo surgery in childhood, further surgical or interventional procedures are often required in the long term. The decision about the optimal timing of the intervention is a particular challenge in adul ...
... Cardiac problems during follow-up Interventions and repeat interventions Although most patients undergo surgery in childhood, further surgical or interventional procedures are often required in the long term. The decision about the optimal timing of the intervention is a particular challenge in adul ...
Recommendations for the management of individuals with acquired
... tolerance [2,3] or the development of symptoms not present during daily life activities. In certain cases, Holter-ECG may be useful to detect arrhythmias. Cardiac catheterization may occasionally be required in those patients in whom discrepancies between clinical and echocardiographic findings rega ...
... tolerance [2,3] or the development of symptoms not present during daily life activities. In certain cases, Holter-ECG may be useful to detect arrhythmias. Cardiac catheterization may occasionally be required in those patients in whom discrepancies between clinical and echocardiographic findings rega ...
Effect of the angiotensin-receptor
... The primary composite endpoint for the trial was death from cardiovascular causes or first hospitalization for heart failure. The time to death from any cause was pre-specified as a key secondary endpoint. All occurrences of death, heart failure hospitalization, and other predefined clinical outcome ...
... The primary composite endpoint for the trial was death from cardiovascular causes or first hospitalization for heart failure. The time to death from any cause was pre-specified as a key secondary endpoint. All occurrences of death, heart failure hospitalization, and other predefined clinical outcome ...
Neonatal Cardiac Surgery
... corrections for neonates now being achieved more and more often. In Europe, at the present, neonates represent 16.7 % of all pediatric cardiac procedures, but this particular patient group remains difficult to deal with if one considers the over-all mortality of 17.7 % – around three times the morta ...
... corrections for neonates now being achieved more and more often. In Europe, at the present, neonates represent 16.7 % of all pediatric cardiac procedures, but this particular patient group remains difficult to deal with if one considers the over-all mortality of 17.7 % – around three times the morta ...
Use of beta-blockers in outpatients with stable CAD
... Information on beta-blocker use was available for 33 243 (99.9%) patients. Of these, 24 984 (75%) were receiving a beta-blocker. Patients receiving a beta-blocker had a mean heart rate of 68±11 bpm. There were 7315 patients with angina at baseline, with a mean heart rate of 69±12 bpm. Of these, 1820 ...
... Information on beta-blocker use was available for 33 243 (99.9%) patients. Of these, 24 984 (75%) were receiving a beta-blocker. Patients receiving a beta-blocker had a mean heart rate of 68±11 bpm. There were 7315 patients with angina at baseline, with a mean heart rate of 69±12 bpm. Of these, 1820 ...
264928
... DRG Complication/Comorbidity References: Guidelines for Reporting Other (Additional) Diagnoses UHDDS #11 B defines “Other Diagnoses” as “all conditions that coexist at the time of admission, that develop subsequently, or that affect the treatment receives and/or length of stay. Diagnoses that relat ...
... DRG Complication/Comorbidity References: Guidelines for Reporting Other (Additional) Diagnoses UHDDS #11 B defines “Other Diagnoses” as “all conditions that coexist at the time of admission, that develop subsequently, or that affect the treatment receives and/or length of stay. Diagnoses that relat ...
Electrophysiology Heart Study - EPS -
... • An x-ray camera will move over you during the procedure, but will not touch you. • The pacemaker wires measure the timing of your heart’s electrical system. The doctor can tell what problem is causing your problems. For example, a slow heart beat may cause dizziness. ...
... • An x-ray camera will move over you during the procedure, but will not touch you. • The pacemaker wires measure the timing of your heart’s electrical system. The doctor can tell what problem is causing your problems. For example, a slow heart beat may cause dizziness. ...
Maximum oxidative phosphorylation capacity of the mammalian heart
... 10’ rise in temperature on rate was found to be similar in pig and dog heart mitochondria at -1.7 (Table 1). Myocardial Cyt a content. Myocardial Cyt a content was determined using an optical technique that corrects for contaminating myoglobin and hemoglobin. This method relies on the selective redu ...
... 10’ rise in temperature on rate was found to be similar in pig and dog heart mitochondria at -1.7 (Table 1). Myocardial Cyt a content. Myocardial Cyt a content was determined using an optical technique that corrects for contaminating myoglobin and hemoglobin. This method relies on the selective redu ...
DISEASEDEX™ General Medicine Summary Heart failure, chronic
... Plain chest X-ray: Radiographic findings in heart failure may include evidence of cardiac chamber enlargement, increased pulmonary venous pressure, interstitial or alveolar edema, pleural effusions, valvular or pericardial calcification, or lung disease , but a chest x-ray should not be used as a ...
... Plain chest X-ray: Radiographic findings in heart failure may include evidence of cardiac chamber enlargement, increased pulmonary venous pressure, interstitial or alveolar edema, pleural effusions, valvular or pericardial calcification, or lung disease , but a chest x-ray should not be used as a ...
Coalition 167 – Reducing readmissions for heart failure patients
... Reducing readmissions for heart failure patients Heart Failure project seeks to reduce readmissions and improve outcomes for people with heart failure, and through the project develop a better understanding of system enablers for reducing readmissions. It will be closely linked to the Victorian Card ...
... Reducing readmissions for heart failure patients Heart Failure project seeks to reduce readmissions and improve outcomes for people with heart failure, and through the project develop a better understanding of system enablers for reducing readmissions. It will be closely linked to the Victorian Card ...
Ischemia-induced arrhythmia: the role of connexins, gap junctions, and
... Intercellular communication of ions and small signaling molecules occurs through protein conduits, gap junctions, formed by the union of 2 hemichannels (connexons), each composed of 6 protein subunits known as connexins (see review [2]). Connexins form a family of proteins, each with specific biophy ...
... Intercellular communication of ions and small signaling molecules occurs through protein conduits, gap junctions, formed by the union of 2 hemichannels (connexons), each composed of 6 protein subunits known as connexins (see review [2]). Connexins form a family of proteins, each with specific biophy ...
quiz2
... Semilunar valves are open at the same time atrioventricular valves are shut during a. ventricular filling. b. ventricular systole. c. isovolumetric relaxation. d. All of the responses above are correct. e. None of the responses above is correct. ...
... Semilunar valves are open at the same time atrioventricular valves are shut during a. ventricular filling. b. ventricular systole. c. isovolumetric relaxation. d. All of the responses above are correct. e. None of the responses above is correct. ...
Myocardial Protection in Neonates and Infants
... warm blood with Melrose solution [6]. Lillehei’s group also used retrograde perfusion of the coronary sinus with blood during aortic valve surgery [7]. However, surgeons soon found that there was vascular and myocardial injury with use of Melrose solution. [8,9]. As a result, this technique was aban ...
... warm blood with Melrose solution [6]. Lillehei’s group also used retrograde perfusion of the coronary sinus with blood during aortic valve surgery [7]. However, surgeons soon found that there was vascular and myocardial injury with use of Melrose solution. [8,9]. As a result, this technique was aban ...
Early detection of anthracycline cardiotoxicity in a rabbit model: left
... cardiac injury into the focus. This approach theoretically might be of special value from the standpoint of early cardiotoxicity detection, since a low level release of myocardial biomolecules might be detected using sensitive analytical methods before any impairment of the heart function occurs (Pe ...
... cardiac injury into the focus. This approach theoretically might be of special value from the standpoint of early cardiotoxicity detection, since a low level release of myocardial biomolecules might be detected using sensitive analytical methods before any impairment of the heart function occurs (Pe ...
Surgical Ventricular Restoration
... Surgical ventricular restoration (SVR) is a procedure designed to restore or remodel the left ventricle to its normal, spherical shape and size in patients with akinetic segments of the heart, secondary to either dilated cardiomyopathy or post-infarction left ventricular aneurysm. The SVR procedure ...
... Surgical ventricular restoration (SVR) is a procedure designed to restore or remodel the left ventricle to its normal, spherical shape and size in patients with akinetic segments of the heart, secondary to either dilated cardiomyopathy or post-infarction left ventricular aneurysm. The SVR procedure ...
reptile cardiology
... Reptilian cardiology differs markedly from that of mammal cardiology, both in terms of the anatomy and physiology, but also in terms of the diversity displayed across the different taxa. Thus, reptilian hearts can be loosely classified as being crocodilian hearts (crocodiles, alligators, gavials and ...
... Reptilian cardiology differs markedly from that of mammal cardiology, both in terms of the anatomy and physiology, but also in terms of the diversity displayed across the different taxa. Thus, reptilian hearts can be loosely classified as being crocodilian hearts (crocodiles, alligators, gavials and ...
this PDF file - Pakistan Heart Journal
... increased likelihood of low cardiac output syndrome at separation from cardiopulmonary bypass. Methodology: This retrospective cross sectional study included patients who presented for cardiac surgical procedures due to different cardiac pathologies at Queen Alia Heart Institute between December 201 ...
... increased likelihood of low cardiac output syndrome at separation from cardiopulmonary bypass. Methodology: This retrospective cross sectional study included patients who presented for cardiac surgical procedures due to different cardiac pathologies at Queen Alia Heart Institute between December 201 ...
Heart rate during thermoregulation in P. barbata
... 4362 F. Seebacher and C. E. Franklin (Axelsson et al., 1987; Morris and Nilsson, 1994). The autonomic fibres controlling the heart are continuously active, thereby creating a nervous tone which increases the efficacy of the heart rate response (Altimiras et al., 1997; Hoffman and Romero, 2000). The ...
... 4362 F. Seebacher and C. E. Franklin (Axelsson et al., 1987; Morris and Nilsson, 1994). The autonomic fibres controlling the heart are continuously active, thereby creating a nervous tone which increases the efficacy of the heart rate response (Altimiras et al., 1997; Hoffman and Romero, 2000). The ...
Letters - Cardiovascular Health Improvement Programs
... sessions over 12-18 weeks) have better survival than those who leave the program prematurely.3 Balady et al4 have outlined several strategies to increase completion of cardiac rehabilitation programs, including policy initiatives to support alternative delivery models that center on the patient. Suc ...
... sessions over 12-18 weeks) have better survival than those who leave the program prematurely.3 Balady et al4 have outlined several strategies to increase completion of cardiac rehabilitation programs, including policy initiatives to support alternative delivery models that center on the patient. Suc ...
Cardiac involvement in adult and juvenile idiopathic
... The three major causes of cardiac mortality in patients with IIM24 are similar to those of the population in general: congestive heart failure, myocardial infarction and arrhythmias. The reported mortality due to cardiac involvement in adult onset IIM varies substantially in the literature.25–30 Ele ...
... The three major causes of cardiac mortality in patients with IIM24 are similar to those of the population in general: congestive heart failure, myocardial infarction and arrhythmias. The reported mortality due to cardiac involvement in adult onset IIM varies substantially in the literature.25–30 Ele ...
Arrhythmogenic Right Ventricular Cardiomyopathy/Dysplasia
... variability. The disease appears to represent a significant cause of sudden death in young people aged <35 years, especially in athletes.3 The natural history of the disease includes 4 phases.6,8 In the first, “concealed” phase, the patients are usually asymptomatic, but may be at risk of sudden dea ...
... variability. The disease appears to represent a significant cause of sudden death in young people aged <35 years, especially in athletes.3 The natural history of the disease includes 4 phases.6,8 In the first, “concealed” phase, the patients are usually asymptomatic, but may be at risk of sudden dea ...
Transcriptome of human foetal heart compared with
... equivalent data is available on the human heart. This is important for understanding how specific mutations in different genes (i.e. missense mutations), rather than knockouts commonly used in experimental animals, affect human heart development and function as well as validating models of hereditar ...
... equivalent data is available on the human heart. This is important for understanding how specific mutations in different genes (i.e. missense mutations), rather than knockouts commonly used in experimental animals, affect human heart development and function as well as validating models of hereditar ...
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.