Relationship between 24- hour Holter variables, chest discomfort
... unpaired t-test for two groups and ANOVA for more than two groups. Chi-square test was used for the categorical variables. For continuous variables that were not normally distributed, Mann-Whitney U test was performed when comparing two groups, and Kruskal-Wallis test was used for comparisons betwee ...
... unpaired t-test for two groups and ANOVA for more than two groups. Chi-square test was used for the categorical variables. For continuous variables that were not normally distributed, Mann-Whitney U test was performed when comparing two groups, and Kruskal-Wallis test was used for comparisons betwee ...
Diastolic Dysfunction and Anaesthetic Implications Dr S Kumar MD
... degree of diastolic dysfunction [7]. Induction of anaesthesia results in significant alterations in ventricular filling in patients with diastolic dysfunction. In patients requiring cardiac surgery, diastolic dysfunction has been shown to be a better predictor of haemodynamic instability than systol ...
... degree of diastolic dysfunction [7]. Induction of anaesthesia results in significant alterations in ventricular filling in patients with diastolic dysfunction. In patients requiring cardiac surgery, diastolic dysfunction has been shown to be a better predictor of haemodynamic instability than systol ...
Relationship of Left Ventricular Structure to
... relatively poor relationship between HRmax and age therefore limits the prediction of HRmax as an indicator of maximal effort during exercise testing, to establish a target heart rate for exercise training, and to identify individuals with a truly abnormal HRmax. Previous studies have used age as th ...
... relatively poor relationship between HRmax and age therefore limits the prediction of HRmax as an indicator of maximal effort during exercise testing, to establish a target heart rate for exercise training, and to identify individuals with a truly abnormal HRmax. Previous studies have used age as th ...
mitral and aortic valve operations in qatar
... aortic valve operations; the characteristics of these patients and the results of their operations are described in this retrospective study. Patients and Methods Mitral and aortic valve operations amounted to 25% of all cardiopulmonary bypass cardiac operations performed at Hamad General Hospital d ...
... aortic valve operations; the characteristics of these patients and the results of their operations are described in this retrospective study. Patients and Methods Mitral and aortic valve operations amounted to 25% of all cardiopulmonary bypass cardiac operations performed at Hamad General Hospital d ...
Ventricular response during lungeing exercise in horses with lone
... recognisable. The differentiation, however, has prognostic and therapeutic importance, since ...
... recognisable. The differentiation, however, has prognostic and therapeutic importance, since ...
The conduction system • In today`s lecture we will discuss the
... contracted while others are relaxed, this is called: Ventricular Fibrillation, which is lethal. We can survive atrial fibrillation, however, because the contraction of atria is not essential for the normal function of the heart, remember that the contraction of the atria aids only in the flow of 20% ...
... contracted while others are relaxed, this is called: Ventricular Fibrillation, which is lethal. We can survive atrial fibrillation, however, because the contraction of atria is not essential for the normal function of the heart, remember that the contraction of the atria aids only in the flow of 20% ...
Interactions of the heart and the liver
... marker of cholestasis, predict all-cause mortality,22 cardiovascular death or hospitalization for heart failure.23 Chronic liver congestion also leads to synthetic function impairment, as shown by prolonged prothrombin time and reduced serum albumin concentration, which is also associated with all-c ...
... marker of cholestasis, predict all-cause mortality,22 cardiovascular death or hospitalization for heart failure.23 Chronic liver congestion also leads to synthetic function impairment, as shown by prolonged prothrombin time and reduced serum albumin concentration, which is also associated with all-c ...
Sudden Cardiac Death BRUGADA SYNDROME
... Appearance of type 3 ST segment elevation in more than one lead under baseline conditions with conversion to type 1 after challenge with a sodium channel blocker is considered equivalent to case 1 above Drug-induced conversion of type 3 to type 2 is not considered diagnostic Characteristic EKG morph ...
... Appearance of type 3 ST segment elevation in more than one lead under baseline conditions with conversion to type 1 after challenge with a sodium channel blocker is considered equivalent to case 1 above Drug-induced conversion of type 3 to type 2 is not considered diagnostic Characteristic EKG morph ...
Atrioventricular dissociation with accrochage - Heart
... interference with 2:3 accrochage Case 7 A man aged 57 years had a history of myocardial infarction after which he was observed over a four-year period. Twenty serial cardiograms were recorded, in which sinus rhythm was dominant in I2 tracings with a rate range of 6o to 75 a minute. In the remaining ...
... interference with 2:3 accrochage Case 7 A man aged 57 years had a history of myocardial infarction after which he was observed over a four-year period. Twenty serial cardiograms were recorded, in which sinus rhythm was dominant in I2 tracings with a rate range of 6o to 75 a minute. In the remaining ...
ONE-HALF CYCLE - Circulation Research
... repeated until each animal had undergone 20 such procedures. If efforts to defibrillate an animal failed after several shocks with the follow-up waveform, external cardiac massage was used and the animal, whether surviving or dead, was replaced by another one for the remainder of the immediate exper ...
... repeated until each animal had undergone 20 such procedures. If efforts to defibrillate an animal failed after several shocks with the follow-up waveform, external cardiac massage was used and the animal, whether surviving or dead, was replaced by another one for the remainder of the immediate exper ...
- The Journal of Heart and Lung Transplantation
... (ICDs) are now routinely prescribed for potential transplant patients. Many patients also have biventricular pacemakers implanted. These therapies improve survival for heart failure patients.5–9 However, with the exception of biventricular pacemakers, they do not appreciably change exercise capacity ...
... (ICDs) are now routinely prescribed for potential transplant patients. Many patients also have biventricular pacemakers implanted. These therapies improve survival for heart failure patients.5–9 However, with the exception of biventricular pacemakers, they do not appreciably change exercise capacity ...
Saving Lives in Schools and Sports
... computerized algorithm to determine if a person’s heart rhythm (based on analysis of ECG recording through two electrodes adhered to the chest wall) should be “shocked,” or in medical terms, defibrillated. Defibrillation, the delivery of a brief, high energy electric current through the heart, does ...
... computerized algorithm to determine if a person’s heart rhythm (based on analysis of ECG recording through two electrodes adhered to the chest wall) should be “shocked,” or in medical terms, defibrillated. Defibrillation, the delivery of a brief, high energy electric current through the heart, does ...
Hawthorn Berry - Dr. Christopher`s Herbal Legacy
... medicine. Dioscorides, a Greek herbalist, was the first to report the performance of Hawthorn Berry on the heart. Dioscorides was followed by a Swiss physician, Paracelsus who touted the use of Hawthorn Berry for its actions on the heart. During his years of practice, Dr. Green of Ennis, Ireland hel ...
... medicine. Dioscorides, a Greek herbalist, was the first to report the performance of Hawthorn Berry on the heart. Dioscorides was followed by a Swiss physician, Paracelsus who touted the use of Hawthorn Berry for its actions on the heart. During his years of practice, Dr. Green of Ennis, Ireland hel ...
tolerance, heart rate, blood pressure, and respiration - Heart
... venous return might be expected to aggravate the left ventricular impairment which characterizes this disorder (Muller and R0rvik, 1958; Malmborg, i965), and therefore the pain threshold might be lower during supine exercise. This investigation was carried out to compare heart rate, systolic blood p ...
... venous return might be expected to aggravate the left ventricular impairment which characterizes this disorder (Muller and R0rvik, 1958; Malmborg, i965), and therefore the pain threshold might be lower during supine exercise. This investigation was carried out to compare heart rate, systolic blood p ...
Pathology N.47 Diseases of the heart part 1
... They mark rapid progression in the severity of coronary artery obstruction; by a rapid (acute) conversion of a stable atherosclerotic plaque to unstable one, usually with superimposed thrombosis. The conversion involves the following changes 1- Erosion, ulceration, fissuring or rupture; these are co ...
... They mark rapid progression in the severity of coronary artery obstruction; by a rapid (acute) conversion of a stable atherosclerotic plaque to unstable one, usually with superimposed thrombosis. The conversion involves the following changes 1- Erosion, ulceration, fissuring or rupture; these are co ...
Total Anomalous Pulmonary Venous Drainage - Heart
... present series has been collected largely from 1000 consecutive necropsies performed at this hospital upon children with congenital heart disease between 1951 and 1966, to which have been added 14 patients whose data were ascertained by cardiac catheter, angiocardiography, and operation. Burroughs a ...
... present series has been collected largely from 1000 consecutive necropsies performed at this hospital upon children with congenital heart disease between 1951 and 1966, to which have been added 14 patients whose data were ascertained by cardiac catheter, angiocardiography, and operation. Burroughs a ...
Heart Disease - Scottish Intercollegiate Guidelines Network
... D Temporary transcutaneous pacing should be initiated quickly in patients not responding to atropine. D When atropine or transcutaneous pacing is ineffective consider adrenaline/epinephrine, dopamine, isoprenaline or aminophylline infusions before transvenous pacing is instituted. Transcutane ...
... D Temporary transcutaneous pacing should be initiated quickly in patients not responding to atropine. D When atropine or transcutaneous pacing is ineffective consider adrenaline/epinephrine, dopamine, isoprenaline or aminophylline infusions before transvenous pacing is instituted. Transcutane ...
3
... zero. And since muscle length is presumably increased in PAH patients in case of eccentric remodelling, this patient category will have higher V0-values compared to persons with non-dilated ventricles. The theory above suggests a positive relation between ventricular volume and V 0. This relationshi ...
... zero. And since muscle length is presumably increased in PAH patients in case of eccentric remodelling, this patient category will have higher V0-values compared to persons with non-dilated ventricles. The theory above suggests a positive relation between ventricular volume and V 0. This relationshi ...
The clinical development of percutaneous heart valve
... by restricted leaflet motion (type IIIb dysfunction), or by a combination of these two mechanisms. A feasibility study to evaluate PMVR with leaflet edge-to-edge repair should consist of 20 to 30 patients with excessive leaflet motion (type II dysfunction). These studies will have safety as the prim ...
... by restricted leaflet motion (type IIIb dysfunction), or by a combination of these two mechanisms. A feasibility study to evaluate PMVR with leaflet edge-to-edge repair should consist of 20 to 30 patients with excessive leaflet motion (type II dysfunction). These studies will have safety as the prim ...
Pulmonary Venous Flow in Large, Uncomplicated Atrial Septal Defect
... controls. In 3 patients in whom ASD was surgically repaired, we observed an immediate return of distinct S and D waves postoperatively. This confirmed that PVFVP abnormality was indeed the result of the ASD. Also a large increase in the AR wave amplitude (46 + 15 cm/s) was noted postoperatively. ...
... controls. In 3 patients in whom ASD was surgically repaired, we observed an immediate return of distinct S and D waves postoperatively. This confirmed that PVFVP abnormality was indeed the result of the ASD. Also a large increase in the AR wave amplitude (46 + 15 cm/s) was noted postoperatively. ...
Can atrial flutter be converted to sinus rhythm by antiarrhythmic
... analysed separately. So there is little information on drug efficacy in atrial flutter. In only few studies was the efficacy of antiarrhythmic drugs in atrial flutter evaluated in small groups of patients. In all of these studies drugs were given intravenously. Suttrop et al. reported a 40 % success ...
... analysed separately. So there is little information on drug efficacy in atrial flutter. In only few studies was the efficacy of antiarrhythmic drugs in atrial flutter evaluated in small groups of patients. In all of these studies drugs were given intravenously. Suttrop et al. reported a 40 % success ...
Heart Rate Variability in Psychiatric Disorders
... (HRV) can give a valuable window into the ANS function being implicated in various medical diseases. But HRV analysis is not well established although psychiatric research findings have shown considerable association of psychopathology with cardiovascular comorbidity. In this review, we introduce th ...
... (HRV) can give a valuable window into the ANS function being implicated in various medical diseases. But HRV analysis is not well established although psychiatric research findings have shown considerable association of psychopathology with cardiovascular comorbidity. In this review, we introduce th ...
Relaxin Is an Independent Risk Factor Predicting Death in Male
... patients with ESKD. (2) Two independent sets of Cox regressions revealed that relaxin has a gender-dependent impact on death in patients with ESKD. We first performed Cox regression analysis by using the median of all measured relaxin values as cutoff. The principally similar finding was seen in Cox ...
... patients with ESKD. (2) Two independent sets of Cox regressions revealed that relaxin has a gender-dependent impact on death in patients with ESKD. We first performed Cox regression analysis by using the median of all measured relaxin values as cutoff. The principally similar finding was seen in Cox ...
Cardiac contractility modulation
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Cardiac contractility modulation (CCM) is a treatment for patients with moderate to severe left ventricular systolic heart failure (NYHA class II–IV). The short- and long-term use of this therapy enhances both the strength of ventricular contraction and the heart’s pumping capacity. The CCM mechanism is based on stimulation of the cardiac muscle by non-excitatory electrical signals (NES). CCM treatment is delivered by a pacemaker-like device that applies the NES, adjusted to and synchronized with the electrical action in the cardiac cycle.In CCM therapy, electrical stimulation is applied to the cardiac muscle during the absolute refractory period. In this phase of the cardiac cycle, electrical signals cannot trigger new cardiac muscle contractions, hence this type of stimulation is known as a non-excitatory stimulation. However, the electrical CCM signals increase the influx of calcium ions into the cardiac muscle cells (cardiomyocytes). In contrast to other electrical stimulation treatments for heart failure, such as pacemaker therapy or implantable cardioverter defibrillators (ICD), CCM does not affect the cardiac rhythm directly. Rather, the aim is to enhance the heart’s natural contraction (the native cardiac contractility) sustainably over long periods of time. Furthermore, unlike most interventions that increase cardiac contractility, CCM is not associated with an unfavorable increase in oxygen demand by the heart (measured in terms of Myocardial Oxygen Consumption or MVO2). This may be explained by the beneficial effect CCM has in improving cardiac efficiency. A meta-analysis in 2014 and an overview of device-based treatment options in heart failure in 2013 concluded that CCM treatment is safe, that it is generally beneficial to patients and that CCM treatment increases the exercise tolerance (ET) and quality of life (QoL) of patients. Furthermore, preliminary long-term survival data shows that CCM is associated with lower long-term mortality in heart failure patients when compared with expected rates among similar patients not treated with CCM.