Are Clinical Heart Failure and Ejection Fraction Always Connected?
... Some studies demonstrated that in approximately 40% of the patients with HF, left systolic function is well preserved [16]. This entity was also termed “diastolic HF”. It can be defined as clinical syndrome characterized by the symptoms of heart failure, preserved ejection fraction, and abnormal dia ...
... Some studies demonstrated that in approximately 40% of the patients with HF, left systolic function is well preserved [16]. This entity was also termed “diastolic HF”. It can be defined as clinical syndrome characterized by the symptoms of heart failure, preserved ejection fraction, and abnormal dia ...
A novel treatment strategy of new onset atrial fibrillation after cardiac
... Postoperative atrial fibrillation (AF) is the most common complication after cardiac surgery, which occurs in up to 74% of patients who underwent on-pump and off-pump procedures [1,2]. Furthermore, it may contribute to longer hospital stays which can be associated with deterioration in heart failure ...
... Postoperative atrial fibrillation (AF) is the most common complication after cardiac surgery, which occurs in up to 74% of patients who underwent on-pump and off-pump procedures [1,2]. Furthermore, it may contribute to longer hospital stays which can be associated with deterioration in heart failure ...
Right Ventricular Hypertrophy
... an R/S ratio of 1.0 or greater is never reached. From analysis of such vector loops, it is our opinion that an R/S ratio of 1.0 or greater in V1, V3R, or V4x need not always be present for an electrocardiographic diagnosis of right ventricular hypertrophy. Deep S waves in leads V1 or V2 may be produ ...
... an R/S ratio of 1.0 or greater is never reached. From analysis of such vector loops, it is our opinion that an R/S ratio of 1.0 or greater in V1, V3R, or V4x need not always be present for an electrocardiographic diagnosis of right ventricular hypertrophy. Deep S waves in leads V1 or V2 may be produ ...
Coronary artery bypass surgery in patients with impaired left
... of recovery of wall motion abnormalities during the immediate postoperative period has not been readily available. In this perspective, the present study was designed to evaluate the short-term serial changes in left ventricular performance in patients with impaired left ventricular function after C ...
... of recovery of wall motion abnormalities during the immediate postoperative period has not been readily available. In this perspective, the present study was designed to evaluate the short-term serial changes in left ventricular performance in patients with impaired left ventricular function after C ...
Structural and Functional Characteristics of Rat Hearts with and
... Discussion Myocardial infarct in rats has been used as a model for a few years. The great advantage of this model is the possibility of keeping the animals alive for long periods until healing of the infarcted myocardial area and appearance of signs of left ventricular remodeling occur. According to ...
... Discussion Myocardial infarct in rats has been used as a model for a few years. The great advantage of this model is the possibility of keeping the animals alive for long periods until healing of the infarcted myocardial area and appearance of signs of left ventricular remodeling occur. According to ...
chapter 22 cardiopulmonary and right-left heart interactions
... a common sequel of surgery for hypoplasia of the right heart, e.g., pulmonary atresia with intact ventricular septum (12), and after repair of tetralogy of Fallot, for example. The characteristic physiology of these patients is the presence of antegrade diastolic pulmonary blood flow during atrial s ...
... a common sequel of surgery for hypoplasia of the right heart, e.g., pulmonary atresia with intact ventricular septum (12), and after repair of tetralogy of Fallot, for example. The characteristic physiology of these patients is the presence of antegrade diastolic pulmonary blood flow during atrial s ...
PDF file - Via Medica Journals
... of mortality [11, 12]. In particular, the PRIME II study [12], analyzed 409 patients with class III and IV NYHA class heart failure and mean ejection fraction of 23%, among which 84 patients (20%) had atrial fibrillation. Atrial fibrillation was not found to be an independent predictor of mortality ...
... of mortality [11, 12]. In particular, the PRIME II study [12], analyzed 409 patients with class III and IV NYHA class heart failure and mean ejection fraction of 23%, among which 84 patients (20%) had atrial fibrillation. Atrial fibrillation was not found to be an independent predictor of mortality ...
Natural history of ventricular premature contractions in
... Aims Premature ventricular contractions (PVCs) are thought to be innocent in children with normal hearts, especially if they disappear during exercise. The aim of our study was to study the natural history of PVCs in childhood and whether there is a difference between PVCs originating from the right ...
... Aims Premature ventricular contractions (PVCs) are thought to be innocent in children with normal hearts, especially if they disappear during exercise. The aim of our study was to study the natural history of PVCs in childhood and whether there is a difference between PVCs originating from the right ...
Endo-Myocardial Biopsy
... patients. The results are compiled in Table 1. The procedure, as applied to this small group of patients has been demonstrated to be quite safe and without any serious complications. The most marked changes occurred in case 2 where two premature contractions were observed during excision of the card ...
... patients. The results are compiled in Table 1. The procedure, as applied to this small group of patients has been demonstrated to be quite safe and without any serious complications. The most marked changes occurred in case 2 where two premature contractions were observed during excision of the card ...
Health Canada Endorsed Important Safety Information on
... Co-administration of domperidone with ketoconazole is contraindicated. Caution should be exercised when using domperidone concomitantly with other CYP3A4 inhibitors, which may increase plasma levels of domperidone. Patients should be advised to stop taking domperidone and seek immediate medical atte ...
... Co-administration of domperidone with ketoconazole is contraindicated. Caution should be exercised when using domperidone concomitantly with other CYP3A4 inhibitors, which may increase plasma levels of domperidone. Patients should be advised to stop taking domperidone and seek immediate medical atte ...
Evaluation of right and left ventricular function using speckle tracking
... Introduction and aim: The identification of right ventricular abnormalities in patients with arrhythmogenic right ventricular cardiomyopathy (ARVC) in early stages is still difficult. The aim of this study was to investigate if longitudinal strain based on speckle tracking can detect subtle right (R ...
... Introduction and aim: The identification of right ventricular abnormalities in patients with arrhythmogenic right ventricular cardiomyopathy (ARVC) in early stages is still difficult. The aim of this study was to investigate if longitudinal strain based on speckle tracking can detect subtle right (R ...
RH Keldermann, MP Nash, H. Gelderblom, VY Wang and AV Panfilov
... ventricular fibrillation; computer simulations; mechanics; electrophysiology; mechanoelectrical feedback; stretch-activated channels MECHANICAL ACTIVITY of the heart is initiated by electrical waves of excitation that propagate through the heart and initiate cardiac contraction. Abnormal excitation ...
... ventricular fibrillation; computer simulations; mechanics; electrophysiology; mechanoelectrical feedback; stretch-activated channels MECHANICAL ACTIVITY of the heart is initiated by electrical waves of excitation that propagate through the heart and initiate cardiac contraction. Abnormal excitation ...
Atrial Fibrillation in Patients with Ischemic and Non
... This in turn induces calcium currents that produce delayed after-depolarizations and an increase in triggered activity, which act as a potent substrate for AF.18 Atrial stretch is also associated with slow- ...
... This in turn induces calcium currents that produce delayed after-depolarizations and an increase in triggered activity, which act as a potent substrate for AF.18 Atrial stretch is also associated with slow- ...
Beneficial effects of trimetazidine (Vastarel MR) in patients with
... effects of TMZ in heart failure It has been observed that TMZ could reduce endothelin release in cardiac patients [12, 33–34]. Growth factors, vasoactive substances and mechanical stress are involved in the endothelin-1 (ET-1) increase in heart failure patients. Despite the known adaptive aspect of ...
... effects of TMZ in heart failure It has been observed that TMZ could reduce endothelin release in cardiac patients [12, 33–34]. Growth factors, vasoactive substances and mechanical stress are involved in the endothelin-1 (ET-1) increase in heart failure patients. Despite the known adaptive aspect of ...
Chapter 15 Heart Physiology PPT
... Electrical Event resulting in Mechanical Event ECG (measurement of electrical event) Events of the Cardiac Cycle Regulation of Cardiac Cycle Copyright 2016 Dr. Mary Cat Flath ...
... Electrical Event resulting in Mechanical Event ECG (measurement of electrical event) Events of the Cardiac Cycle Regulation of Cardiac Cycle Copyright 2016 Dr. Mary Cat Flath ...
Full Text - Crescent Journal of Medical and Biological Sciences
... (10 patients as the case and 10 ones as the control groups), having the average age, height and weight of 10.8 ± 6 years, 149 cm and 36 ± 8 kg, respectively. It was done after the manager’s allowance and parent’s consent. In this study, perseverant exercises, structural (LVEDd, LVPWd, LVEDV, LV mass ...
... (10 patients as the case and 10 ones as the control groups), having the average age, height and weight of 10.8 ± 6 years, 149 cm and 36 ± 8 kg, respectively. It was done after the manager’s allowance and parent’s consent. In this study, perseverant exercises, structural (LVEDd, LVPWd, LVEDV, LV mass ...
Ventriculocoronary connections in hypoplastic right heart syndrome
... coronary arteries were often unusually thickwalled. Penetrating branches, distributed throughout both compact and disarrayed myocardium ofthe right ventricular free wall and interventricular septum, showed primarily hypenrophy of the media (Fig. 6A). In the inner one third of the wall. the penetrati ...
... coronary arteries were often unusually thickwalled. Penetrating branches, distributed throughout both compact and disarrayed myocardium ofthe right ventricular free wall and interventricular septum, showed primarily hypenrophy of the media (Fig. 6A). In the inner one third of the wall. the penetrati ...
Introduction to Ventricular Assist Device (VAD)
... APPLICATION Post-Cardiotomy : after-surgery use to assist recovery of patient. Bridge-to-Transplant : used temporarily while awaiting transplant. Bridge-to-Recovery : recovery from heart failure, in some cases VAD is removed and patient discharged from hospital. Chronic Support : for long te ...
... APPLICATION Post-Cardiotomy : after-surgery use to assist recovery of patient. Bridge-to-Transplant : used temporarily while awaiting transplant. Bridge-to-Recovery : recovery from heart failure, in some cases VAD is removed and patient discharged from hospital. Chronic Support : for long te ...
Review Article Ventricular Tachycardia in the Absence of Structural
... Fig. 3. Electrocardiogram illustrating left ventricular outflow tract ventricular tachycardia (LVOT VT). The S wave in LI and R-wave transition in V1 suggest LVOT VT. In addition, an R:S amplitude ratio of 30% and an R:QRS duration ratio of 50% are seen. Presence of an S wave in leads V5 and V6 sugg ...
... Fig. 3. Electrocardiogram illustrating left ventricular outflow tract ventricular tachycardia (LVOT VT). The S wave in LI and R-wave transition in V1 suggest LVOT VT. In addition, an R:S amplitude ratio of 30% and an R:QRS duration ratio of 50% are seen. Presence of an S wave in leads V5 and V6 sugg ...
Impaired Left Ventricular Relaxation and Arterial
... only the arterial pressure and peripheral resistance, but also the arterial impedance, compliance and wave reflections C1-41. In addition to welldocumented effects of vascular load on the systolic functions [5, 61, impairment of ventricular relaxation and diastolic filling that precedes abnormal sys ...
... only the arterial pressure and peripheral resistance, but also the arterial impedance, compliance and wave reflections C1-41. In addition to welldocumented effects of vascular load on the systolic functions [5, 61, impairment of ventricular relaxation and diastolic filling that precedes abnormal sys ...
Elasticity-based determination of isovolumetric phases in the human
... deriving elasticity-based isovolumetric phases in the human heart. We will evaluate solely the relative timing between heart geometry and wave amplitudes based on one important observation made previously in cardiac MRE on healthy volunteers and animals: there is a distinct delay in the dynamics of ...
... deriving elasticity-based isovolumetric phases in the human heart. We will evaluate solely the relative timing between heart geometry and wave amplitudes based on one important observation made previously in cardiac MRE on healthy volunteers and animals: there is a distinct delay in the dynamics of ...
Elasticity-based determination of isovolumetric
... deriving elasticity-based isovolumetric phases in the human heart. We will evaluate solely the relative timing between heart geometry and wave amplitudes based on one important observation made previously in cardiac MRE on healthy volunteers and animals: there is a distinct delay in the dynamics of ...
... deriving elasticity-based isovolumetric phases in the human heart. We will evaluate solely the relative timing between heart geometry and wave amplitudes based on one important observation made previously in cardiac MRE on healthy volunteers and animals: there is a distinct delay in the dynamics of ...
Heartstart Information - Heatley Mere Residents Association
... It takes the brain six minutes to die once oxygen is cut off. It can take a person as little as five minutes to bleed to death. Bones that are not set, may never hold weight. Cuts that are not cleaned can become infected. In the minutes after a trauma, how the body is treated can make a world of dif ...
... It takes the brain six minutes to die once oxygen is cut off. It can take a person as little as five minutes to bleed to death. Bones that are not set, may never hold weight. Cuts that are not cleaned can become infected. In the minutes after a trauma, how the body is treated can make a world of dif ...
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.