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... dyspnea have been reported as frequently occurring symptoms that may manifest as long as one month before the actual clinically manifested ischemic event. In women, chest pain may be less predictive of coronary ischemia than in men.[23] Women may also experience back or jaw pain during an episode.[2 ...
... dyspnea have been reported as frequently occurring symptoms that may manifest as long as one month before the actual clinically manifested ischemic event. In women, chest pain may be less predictive of coronary ischemia than in men.[23] Women may also experience back or jaw pain during an episode.[2 ...
The physiologic mechanisms of cardiac and vascular
... Conduction defects. Conduction defects also are revealed in the jugular pulse . The interval between the A wave and the carotid pulse provides an estimate of the PR interval, with the practi ced eye able to recognize normal , prolon ged or short AC (and therefore PR) interv als. Wenckebach period s ...
... Conduction defects. Conduction defects also are revealed in the jugular pulse . The interval between the A wave and the carotid pulse provides an estimate of the PR interval, with the practi ced eye able to recognize normal , prolon ged or short AC (and therefore PR) interv als. Wenckebach period s ...
PowerPoint-Präsentation
... Multi-point pacing using a quadripolar electrode is associated with - high procedural success, lead stability/LV capture, reduction of PNS - numerous programmable configurations - which can have an impact on shorter LV activation - which can result in better hemodynamics (A-VTI, dp/dt, TDI) ...
... Multi-point pacing using a quadripolar electrode is associated with - high procedural success, lead stability/LV capture, reduction of PNS - numerous programmable configurations - which can have an impact on shorter LV activation - which can result in better hemodynamics (A-VTI, dp/dt, TDI) ...
Circulating levels of persistent organic pollutants (POPs) are associated with left
... 2.5 MHz transducer was used for the majority of the examinations. Presence of stenosis or regurgitations in the mitral and aortic valves was recorded by use of color and continuous Doppler. LV ejection fraction (EF) was visually assessed from examinations from the parasternal and apical projections. ...
... 2.5 MHz transducer was used for the majority of the examinations. Presence of stenosis or regurgitations in the mitral and aortic valves was recorded by use of color and continuous Doppler. LV ejection fraction (EF) was visually assessed from examinations from the parasternal and apical projections. ...
UK National Screening Committee Screening for Sudden Cardiac
... unfortunately inaccurate and incomplete. 1. The authors reference the database from the UK National Audit of Sudden Arrhythmic Death Syndrome and give the impression that within a period of four and a half years there were only 165 young deaths. The reader could justifiably infer that those numbers ...
... unfortunately inaccurate and incomplete. 1. The authors reference the database from the UK National Audit of Sudden Arrhythmic Death Syndrome and give the impression that within a period of four and a half years there were only 165 young deaths. The reader could justifiably infer that those numbers ...
The Evolving Role of BNP in the Diagnosis and
... to the unloading effect of vasodilatation, but without reflex tachycardia. Moreover, reducing preload and afterload without increasing heart rate is consistent with decreased myocardial oxygen consumption and a decrease in ventricular stress - a stimulus presumed to drive the neurohormonal activatio ...
... to the unloading effect of vasodilatation, but without reflex tachycardia. Moreover, reducing preload and afterload without increasing heart rate is consistent with decreased myocardial oxygen consumption and a decrease in ventricular stress - a stimulus presumed to drive the neurohormonal activatio ...
High Density Lipoprotein Cholesterol in Coronary - J
... been demonstrated in patients achieving LDL-C targets with statins after percutaneous coronary interventions 7). Very recently, HDL-C levels have been shown to be most closely associated with the presence of CAD assessed by multi-detector row computed tomography, irrespective of statin treatment 8). ...
... been demonstrated in patients achieving LDL-C targets with statins after percutaneous coronary interventions 7). Very recently, HDL-C levels have been shown to be most closely associated with the presence of CAD assessed by multi-detector row computed tomography, irrespective of statin treatment 8). ...
PACES/HRS Expert Consensus Statement on the Management of
... asymptomatic patients discovered by fortuitous ECG testing. In large-scale general population studies involving children and adults, the prevalence of WPW is estimated to be 1–3 in 1000 individuals.7–13 Familial studies have shown an incidence of 5.5 in 1000 among first-degree relatives following an ...
... asymptomatic patients discovered by fortuitous ECG testing. In large-scale general population studies involving children and adults, the prevalence of WPW is estimated to be 1–3 in 1000 individuals.7–13 Familial studies have shown an incidence of 5.5 in 1000 among first-degree relatives following an ...
Left ventricular dysfunction following rewarming from experimental
... ment both the strength and duration of contractions as well as the load-independent measure of cardiac contractility (35). However, most of these observations were performed in isolated in vitro preparations subjected to moderate hypothermia (4, 30). In more intact animal preparations, marked depres ...
... ment both the strength and duration of contractions as well as the load-independent measure of cardiac contractility (35). However, most of these observations were performed in isolated in vitro preparations subjected to moderate hypothermia (4, 30). In more intact animal preparations, marked depres ...
Sleep disordered breathing and enlargement of the right heart after myocardial infarction
... is associated with a higher end-diastolic dimension of the right ventricle [2]. Furthermore, RV systolic dysfunction is an independent predictor of the development of heart failure and mortality after AMI [1]. Sleep disordered breathing (SDB) is present in 43–66% of patients with AMI [3–6]. AMI pati ...
... is associated with a higher end-diastolic dimension of the right ventricle [2]. Furthermore, RV systolic dysfunction is an independent predictor of the development of heart failure and mortality after AMI [1]. Sleep disordered breathing (SDB) is present in 43–66% of patients with AMI [3–6]. AMI pati ...
Beneficial Effect of Continuous Normobaric Hypoxia on Ventricular
... contrast to the study of Xu et al. (2011), we did not observe any improvement of FS in infarcted rats adapted to CNH. The reason for this discordance is unknown but differences between models and protocols of IHH and CNH can play a role. In addition, it cannot be excluded that the large extent of MI ...
... contrast to the study of Xu et al. (2011), we did not observe any improvement of FS in infarcted rats adapted to CNH. The reason for this discordance is unknown but differences between models and protocols of IHH and CNH can play a role. In addition, it cannot be excluded that the large extent of MI ...
sudden cardiac death in children
... lethal arrhythmia (6-7). Data suggest that increased sympathetic stimulation may contribute to SCD triggering (8-10). Myocarditis refers to general inflammation of the myocardium associated with necrosis and degeneration of myocytes. Myocarditis can occur at any age and is one of the few heart disea ...
... lethal arrhythmia (6-7). Data suggest that increased sympathetic stimulation may contribute to SCD triggering (8-10). Myocarditis refers to general inflammation of the myocardium associated with necrosis and degeneration of myocytes. Myocarditis can occur at any age and is one of the few heart disea ...
Junctional rhythm
... Damage to AV node in inferior wall MI Electrolyte disturbances Heart failure Cardiomyopathy Myocarditis Valvular heart disease ...
... Damage to AV node in inferior wall MI Electrolyte disturbances Heart failure Cardiomyopathy Myocarditis Valvular heart disease ...
Final heart development
... • The upper part of septum primum that is attached to the roof of the common atrium shows gradual resorption forming an opening called ostium secundum. • Another septum descends on the right side of the septum primum called septum secundum. • It forms an incomplete partition between the two atria. ...
... • The upper part of septum primum that is attached to the roof of the common atrium shows gradual resorption forming an opening called ostium secundum. • Another septum descends on the right side of the septum primum called septum secundum. • It forms an incomplete partition between the two atria. ...
LEFT VENTRICULAR DIASTOLIC FUNCTIONAL STATUS AFTER
... and progress to chronic heart failure leading to poor prognosis (1,2). This abnormality is the result of inhibiting uptake of sarcoplasmatic reticulum calcium, left ventricular aneurism, ventricular chamber stiffness, and change in ventricular remodeling(3-5). Even, LV diastolic function seems to be ...
... and progress to chronic heart failure leading to poor prognosis (1,2). This abnormality is the result of inhibiting uptake of sarcoplasmatic reticulum calcium, left ventricular aneurism, ventricular chamber stiffness, and change in ventricular remodeling(3-5). Even, LV diastolic function seems to be ...
Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub. 2014
... Methods and Results. PubMed database based on original articles from 1983 to 2013 and the author´s clinical experience. This review covers the current status of the methodology and the clinical uses of HRV, especially in the field of internal medicine. Conclusion. Heart rate variability is making a ...
... Methods and Results. PubMed database based on original articles from 1983 to 2013 and the author´s clinical experience. This review covers the current status of the methodology and the clinical uses of HRV, especially in the field of internal medicine. Conclusion. Heart rate variability is making a ...
Gradual Changes of ECG Waveform During and After
... The directions and magnitudes of time-normalized P, QRS, and ST vectors, and other ECG parameters analyzed during and after multistage exercise in 56 ostensibly healthy men aged 23 to 62. By selective averaging with a digital computer system a single representative beat was obtained from each stage. ...
... The directions and magnitudes of time-normalized P, QRS, and ST vectors, and other ECG parameters analyzed during and after multistage exercise in 56 ostensibly healthy men aged 23 to 62. By selective averaging with a digital computer system a single representative beat was obtained from each stage. ...
Coronary Venous Anatomy and its Relevance Suma HY‡, Hariharan
... Hence, the present study has been taken up to know the pattern of coronary venous anatomy and its relevance in the clinical field. The coronary sinus and its tributaries were studied by anatomical dissection in 25 adult human cadaveric hearts, which had been fixed in formalin solution. Coronary sinu ...
... Hence, the present study has been taken up to know the pattern of coronary venous anatomy and its relevance in the clinical field. The coronary sinus and its tributaries were studied by anatomical dissection in 25 adult human cadaveric hearts, which had been fixed in formalin solution. Coronary sinu ...
Treatment of stress response to laryngoscopy and intubation with
... Kohden, Japan) was used to monitor Heart rate, systolic, diastolic, mean arterial blood pressure; preoperatively, before induction of anesthesia, and every minute for 5 minutes after laryngoscopy and intubation. ECG changes and oxygen saturation (SPo2) were monitored. Any adverse events or side-effe ...
... Kohden, Japan) was used to monitor Heart rate, systolic, diastolic, mean arterial blood pressure; preoperatively, before induction of anesthesia, and every minute for 5 minutes after laryngoscopy and intubation. ECG changes and oxygen saturation (SPo2) were monitored. Any adverse events or side-effe ...
Chronic stable coronary artery disease: drugs vs. revascularization REVIEW Controversies in Cardiovascular Medicine
... Recently two new classes of drugs have been introduced which have similar effects as the established agents, albeit through completely different modes of action. These drugs have not yet been evaluated by the ESC guideline committee. Ivabradine reduces heart rate (sinus rhythm) at rest as well as du ...
... Recently two new classes of drugs have been introduced which have similar effects as the established agents, albeit through completely different modes of action. These drugs have not yet been evaluated by the ESC guideline committee. Ivabradine reduces heart rate (sinus rhythm) at rest as well as du ...
atrial septal defect
... usually large . • This type of defect accounts for 15 to 20 percent of ASDs. • It has been suggested that both partial and complete AV canal defects are related to maldevelopment of the ventricular septum rather than a decrease in atrial septal tissue ...
... usually large . • This type of defect accounts for 15 to 20 percent of ASDs. • It has been suggested that both partial and complete AV canal defects are related to maldevelopment of the ventricular septum rather than a decrease in atrial septal tissue ...
Real-Time MR Imaging of Aortic Flow: Influence of Breathing on Left
... expiratory intrathoracic pressures can be increased as a result of expiratory obstruction (2). These pressure changes have a distinct influence on cardiac function (3). In combination with other factors, such as hypoxemia and pulmonary hypertension, the heart is subject to chronic hemodynamic and me ...
... expiratory intrathoracic pressures can be increased as a result of expiratory obstruction (2). These pressure changes have a distinct influence on cardiac function (3). In combination with other factors, such as hypoxemia and pulmonary hypertension, the heart is subject to chronic hemodynamic and me ...
ECG in STEMI - American Heart Association
... • Also known as apical ballooning, takotsubo cardiomyopathy or broken heart syndrome • More common than previously thought • More common in elderly women but can occur in other groups • An emotional or medical trigger such as loss of a loved one or severe pain or medical illness ...
... • Also known as apical ballooning, takotsubo cardiomyopathy or broken heart syndrome • More common than previously thought • More common in elderly women but can occur in other groups • An emotional or medical trigger such as loss of a loved one or severe pain or medical illness ...
IN UTERO FUNCTION FOLLOWING GESTATIONAL EXPOSURE TO DIMETHADIONE, THE N-DEMETHYLATED METABOLITE OF
... pathologies later in life. In these individuals, the development of further cardiac disease may be attributed to the disruption of the gene programs related to the initial structural defect because these same genes control cardiac function postnatally (described in Section 1.4). Thus, all VSD patien ...
... pathologies later in life. In these individuals, the development of further cardiac disease may be attributed to the disruption of the gene programs related to the initial structural defect because these same genes control cardiac function postnatally (described in Section 1.4). Thus, all VSD patien ...
Physiology of the Right Ventricle
... functionally very different. As a matter of fact, a brisk increase in PVR produced by pulmonary arterial constriction to mimic massive pulmonary embolism, induces an acute dilatation and pump failure of the RV [9], and there is no clinical counterpart of this observation for the LV. However, a gradu ...
... functionally very different. As a matter of fact, a brisk increase in PVR produced by pulmonary arterial constriction to mimic massive pulmonary embolism, induces an acute dilatation and pump failure of the RV [9], and there is no clinical counterpart of this observation for the LV. However, a gradu ...
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.