Intrinsic changes on automatism, conduction, and refractoriness by
... using an isolated rabbit heart preparation. With respect to the experimental preparation used, two main points should be considered. First, it has been reported that the rabbit model is ideal for examining the effects of exercise training, and, by using the proper intensity, duration, and frequency ...
... using an isolated rabbit heart preparation. With respect to the experimental preparation used, two main points should be considered. First, it has been reported that the rabbit model is ideal for examining the effects of exercise training, and, by using the proper intensity, duration, and frequency ...
Full Text_PDF - Kafkas Üniv Vet Fak Derg
... geese [32] appear to be particularly susceptible. Atherosclerosis has also been seen in other species such as ostrich, penguins, cormorants, free-ranging owls and various Passeriformes, including birds of paradise [32,33]. As well as aortic aneurysms are also found occasionally in poultry, specifica ...
... geese [32] appear to be particularly susceptible. Atherosclerosis has also been seen in other species such as ostrich, penguins, cormorants, free-ranging owls and various Passeriformes, including birds of paradise [32,33]. As well as aortic aneurysms are also found occasionally in poultry, specifica ...
Intrinsic changes on automatism, conduction
... using an isolated rabbit heart preparation. With respect to the experimental preparation used, two main points should be considered. First, it has been reported that the rabbit model is ideal for examining the effects of exercise training, and, by using the proper intensity, duration, and frequency ...
... using an isolated rabbit heart preparation. With respect to the experimental preparation used, two main points should be considered. First, it has been reported that the rabbit model is ideal for examining the effects of exercise training, and, by using the proper intensity, duration, and frequency ...
Inability of Potassium Canrenoate to Convert Experimentally
... atrial electrode. When the heart was not being paced, the atrial bipolar electrode was used to monitor and record the atrial electrogram. All recordings were made on a Grass model 7 polygraph. Ventricular tachycardia was induced in each dog by intravenously administering an initial dose of ouabain o ...
... atrial electrode. When the heart was not being paced, the atrial bipolar electrode was used to monitor and record the atrial electrogram. All recordings were made on a Grass model 7 polygraph. Ventricular tachycardia was induced in each dog by intravenously administering an initial dose of ouabain o ...
Diastolic Dysfunction - UCSF | Department of Medicine
... Clinical definition: 35-40% of men with CHF, 65-75% of women with CHF o Cardiac dysfunction with normal EF (>50%) or with findings of diastolic dysfunction on echo/cath o Difficulties: timing of echo in relation to treatment, mixed etiologies o Asymptomatic diastolic dysfunction: Mayo Clinic study - ...
... Clinical definition: 35-40% of men with CHF, 65-75% of women with CHF o Cardiac dysfunction with normal EF (>50%) or with findings of diastolic dysfunction on echo/cath o Difficulties: timing of echo in relation to treatment, mixed etiologies o Asymptomatic diastolic dysfunction: Mayo Clinic study - ...
Canadian Cardiovascular Society Atrial Fibrillation Guidelines 2010
... systematic reviews. In the absence of such data, recommendations were based on the results of large cohort studies or smaller clinical studies. The recommendations were finalized by informed consensus through one face-to-face meeting, conference calls, e-mail correspondence, and final review by all ...
... systematic reviews. In the absence of such data, recommendations were based on the results of large cohort studies or smaller clinical studies. The recommendations were finalized by informed consensus through one face-to-face meeting, conference calls, e-mail correspondence, and final review by all ...
21 January 2015
... majority of these are benign premature atrial ectopics that are likely to disappear within the first few weeks to months of life without any untoward consequences. It is necessary to try and identify the neonates with potentially serious arrhythmias and to investigate these neonates more intensively ...
... majority of these are benign premature atrial ectopics that are likely to disappear within the first few weeks to months of life without any untoward consequences. It is necessary to try and identify the neonates with potentially serious arrhythmias and to investigate these neonates more intensively ...
IHDmodule FY2011Q2
... “On a beta-blocker during the six-month period” implies continuously on beta-blockers, although the specific medication may have been changed. (Example: patient was started on atenolol 8 months ago, but was switched to metoprolol succinate 3 months ago. The answer to “bb6mos” is “yes.”) If beta-bloc ...
... “On a beta-blocker during the six-month period” implies continuously on beta-blockers, although the specific medication may have been changed. (Example: patient was started on atenolol 8 months ago, but was switched to metoprolol succinate 3 months ago. The answer to “bb6mos” is “yes.”) If beta-bloc ...
The Three-Dimensional Arrangement of the Myocytes Aggregated
... Histological studies show that the myocardium making up the ventricular wall of mammals is composed of elongated contractile cells, the myocytes, which are embedded in a matrix of connective tissue (Lev and Simkins, 1956; Grant, 1965). According to traditional views, the myocytes are connected end-t ...
... Histological studies show that the myocardium making up the ventricular wall of mammals is composed of elongated contractile cells, the myocytes, which are embedded in a matrix of connective tissue (Lev and Simkins, 1956; Grant, 1965). According to traditional views, the myocytes are connected end-t ...
IHDmodule FY2011Q3
... “On a beta-blocker during the six-month period” implies continuously on beta-blockers, although the specific medication may have been changed. (Example: patient was started on atenolol 8 months ago, but was switched to metoprolol succinate 3 months ago. The answer to “bb6mos” is “yes.”) If beta-bloc ...
... “On a beta-blocker during the six-month period” implies continuously on beta-blockers, although the specific medication may have been changed. (Example: patient was started on atenolol 8 months ago, but was switched to metoprolol succinate 3 months ago. The answer to “bb6mos” is “yes.”) If beta-bloc ...
Heart failure with Preserved Ejection Fraction
... Afterload is the load or pressure against which the ventricle contracts. Often confused with blood pressure, afterload represents the summation of a number of components of the peripheral vascular network that feedback to produce ventricular impedance. The components of afterload are typically model ...
... Afterload is the load or pressure against which the ventricle contracts. Often confused with blood pressure, afterload represents the summation of a number of components of the peripheral vascular network that feedback to produce ventricular impedance. The components of afterload are typically model ...
Safety lessons learned from aviation
... Arrhythmogenic right ventricular cardiomyopathy Congenital heart disease, especially coronary artery anomalies Valvular heart disease Cardiac pacemaker and conducting system disease ...
... Arrhythmogenic right ventricular cardiomyopathy Congenital heart disease, especially coronary artery anomalies Valvular heart disease Cardiac pacemaker and conducting system disease ...
Indications for dual-chamber cardioverter defibrillators at
... non-thoracotomy implantation of single-chamber ICDs between January 1991 and December 1997. Mean age was 586 years; 144 of 153 patients (94%) had organic heart disease, ischaemic in 97 patients (64%). Idiopathic dilated cardiomyopathy was present in 30 patients (20%), arrhythmogenic right ventricul ...
... non-thoracotomy implantation of single-chamber ICDs between January 1991 and December 1997. Mean age was 586 years; 144 of 153 patients (94%) had organic heart disease, ischaemic in 97 patients (64%). Idiopathic dilated cardiomyopathy was present in 30 patients (20%), arrhythmogenic right ventricul ...
Pak Heart J - Pakistan Heart Journal
... Key Words: Heart Failure, Left Bundle Branch Block, Dilated Cardiomyopathy, ...
... Key Words: Heart Failure, Left Bundle Branch Block, Dilated Cardiomyopathy, ...
Atrial fibrillation - Heart Rhythm Alliance
... Some people with AF do not have any symptoms, and it may only be discovered at a routine medical examination or following an admission to A&E with another condition. The easiest way to detect AF is to feel your pulse! ...
... Some people with AF do not have any symptoms, and it may only be discovered at a routine medical examination or following an admission to A&E with another condition. The easiest way to detect AF is to feel your pulse! ...
The prevalence of the metabolic syndrome and its impact on the left
... In the present study, we evaluated the prevalence of MS and its impact on the left ventricular systolic function in patients with non-diabetic first STEMI using conventional and tissue Doppler echocardiographic methods. The prevalence of MS was 37.5% in patients with non-diabetic first acute STEMI. ...
... In the present study, we evaluated the prevalence of MS and its impact on the left ventricular systolic function in patients with non-diabetic first STEMI using conventional and tissue Doppler echocardiographic methods. The prevalence of MS was 37.5% in patients with non-diabetic first acute STEMI. ...
Implantable Defibrillators
... low-voltage electrode for pacing and detection, and a pair of high-voltage defibrillation electrodes spaced for replacement in the right ventricle and in the superior vena cava (Figure 3 a). A more recent approach parallels that used for unipolar pacemakers. A single right-ventricular catheter havin ...
... low-voltage electrode for pacing and detection, and a pair of high-voltage defibrillation electrodes spaced for replacement in the right ventricle and in the superior vena cava (Figure 3 a). A more recent approach parallels that used for unipolar pacemakers. A single right-ventricular catheter havin ...
CARDIOMYOPATHIES
... resulting in a negative biopsy finding. • The diagnosis can also be made if some other tissue diagnosis is possible or available in conjunction with the appropriate clinical picture for heart failure. • Cardiac involvement in sarcoidosis reportedly occurs in approximately 20% of cases. ...
... resulting in a negative biopsy finding. • The diagnosis can also be made if some other tissue diagnosis is possible or available in conjunction with the appropriate clinical picture for heart failure. • Cardiac involvement in sarcoidosis reportedly occurs in approximately 20% of cases. ...
Automated External Defibrillator
... within three minutes to a person in cardiac arrest. The number of patients who survived to discharge after out-ofhospital cardiac arrest where volunteers recognized the event, telephoned EMS, and performed cardiopulmonary resuscitation (CPR) was compared to the number who survived to discharge when ...
... within three minutes to a person in cardiac arrest. The number of patients who survived to discharge after out-ofhospital cardiac arrest where volunteers recognized the event, telephoned EMS, and performed cardiopulmonary resuscitation (CPR) was compared to the number who survived to discharge when ...
Amiodarone for resuscitation after out-of
... Methods We conducted a randomized, doubleblind, placebo-controlled study of intravenous amiodarone in patients with out-of-hospital cardiac arrest. Patients who had cardiac arrest with ventricular fibrillation (or pulseless ventricular tachycardia) and who had not been resuscitated after receiving t ...
... Methods We conducted a randomized, doubleblind, placebo-controlled study of intravenous amiodarone in patients with out-of-hospital cardiac arrest. Patients who had cardiac arrest with ventricular fibrillation (or pulseless ventricular tachycardia) and who had not been resuscitated after receiving t ...
![Heart sounds. Phonocardiogram. Carotidogram. []](http://s1.studyres.com/store/data/007908952_1-a6d5305206d60fd6ce288ec94dfea154-300x300.png)
Heart sounds. Phonocardiogram. Carotidogram. []
... Figure 1. The carotidogram. 1.4. The peripheral sphygmogram The carotidogram is also known as central sphygmogram, since it is recorded on a large artery (the carotid artery), situated close to the heart. Using a similar examination technique, one can also obtain a peripheral sphygmogram, recorded ...
... Figure 1. The carotidogram. 1.4. The peripheral sphygmogram The carotidogram is also known as central sphygmogram, since it is recorded on a large artery (the carotid artery), situated close to the heart. Using a similar examination technique, one can also obtain a peripheral sphygmogram, recorded ...
Assessment of the pressure–volume relationship of the single
... microscopic architecture and excitation–contraction coupling events are similar in both systems. Ventricular pressure and area were obtained independently and integrated into pressure–area loops. Area was then converted to volume to generate PV loops. Based on the ...
... microscopic architecture and excitation–contraction coupling events are similar in both systems. Ventricular pressure and area were obtained independently and integrated into pressure–area loops. Area was then converted to volume to generate PV loops. Based on the ...
THE INCIDENCE OF ARRYTHMIAS IN PATIENTS UNDERGOING
... or cardiac death, Patients with documented coronary artery disease have a greater susceptibility to sudden death if they demonstrate ventricular arrythmias. Objective: To determine the significance of arrythmias during exercise testing in suspected coronary artery disease patients and in noncoronary ...
... or cardiac death, Patients with documented coronary artery disease have a greater susceptibility to sudden death if they demonstrate ventricular arrythmias. Objective: To determine the significance of arrythmias during exercise testing in suspected coronary artery disease patients and in noncoronary ...
Evaluation of the Role of IKACh in Atrial Fibrillation Using a Mouse
... Arrhythmia inducibility. In the absence of carbachol administration, no atrial or ventricular arrhythmias could be induced with programmed stimulation or with burst pacing in either WT or KO mice. After carbachol administration, AF lasting for a mean of 5.7 ⫾ 11 min was induced in 10 of 14 WT mice ( ...
... Arrhythmia inducibility. In the absence of carbachol administration, no atrial or ventricular arrhythmias could be induced with programmed stimulation or with burst pacing in either WT or KO mice. After carbachol administration, AF lasting for a mean of 5.7 ⫾ 11 min was induced in 10 of 14 WT mice ( ...
The diagnostic and prognostic value of right ventricular myocardial
... segment elevation MI (STEMI) treated by primary percutaneous coronary intervention (pPCI). Aim: To evaluate the diagnostic and prognostic significance of RV myocardial velocities compared to classical electrocardiographic RVMI diagnostic criteria in this group of patients. Methods: Consecutive patie ...
... segment elevation MI (STEMI) treated by primary percutaneous coronary intervention (pPCI). Aim: To evaluate the diagnostic and prognostic significance of RV myocardial velocities compared to classical electrocardiographic RVMI diagnostic criteria in this group of patients. Methods: Consecutive patie ...
Ventricular fibrillation
Ventricular fibrillation (V-fib or VF) is a condition in which there is uncoordinated contraction of the cardiac muscle of the ventricles in the heart, making them quiver rather than contract properly. Ventricular fibrillation is the most commonly identified arrhythmia in cardiac arrest patients. While there is some activity, the lay person is usually unable to detect it by palpating (feeling) the major pulse points of the carotid and femoral arteries. Such an arrhythmia is only confirmed by electrocardiography. Ventricular fibrillation is a medical emergency that requires prompt Advanced Life Support interventions. If this arrhythmia continues for more than a few seconds, it will likely degenerate further into asystole (""flatline""). This condition results in cardiogenic shock and cessation of effective blood circulation. As a consequence, sudden cardiac death (SCD) will result in a matter of minutes. If the patient is not revived after a sufficient period (within roughly 5 minutes at room temperature), the patient could sustain irreversible brain damage and possibly become brain-dead, due to the effects of cerebral hypoxia. On the other hand, death often occurs if sinus rhythm is not restored within 90 seconds of the onset of VF, especially if it has degenerated further into asystole.