The Adverse Effects of the Cardiopulmonary Bypass Machine
... The Adverse Effects of the Cardiopulmonary Bypass Machine The human heart is a miraculous organ. It is continuously, involuntarily pumping blood so that every muscle, every artery, and every cell in one’s body can get the oxygen it requires. However, sometimes this process does not work as it should ...
... The Adverse Effects of the Cardiopulmonary Bypass Machine The human heart is a miraculous organ. It is continuously, involuntarily pumping blood so that every muscle, every artery, and every cell in one’s body can get the oxygen it requires. However, sometimes this process does not work as it should ...
What is Atrial Fibrillation - Queensland Cardiovascular Group
... interrupt the abnormal electrical signals to prevent further atrial fibrillation. The success rate varies from 70-90%, but the procedure does mean 7-10 ...
... interrupt the abnormal electrical signals to prevent further atrial fibrillation. The success rate varies from 70-90%, but the procedure does mean 7-10 ...
Stroke Volume Dynamics During Progressive Exercise in Healthy
... testing protocols. Study A involved 10 young adolescent males (mean age 15.3 ± 0.5 years), Study B 9 young adolescent females (mean age 15.0 ± 0.6 years), and Study C 14 older adolescent males (mean age 17.9 ± 0.7 years). Findings in these studies have been previously published in investigations of ...
... testing protocols. Study A involved 10 young adolescent males (mean age 15.3 ± 0.5 years), Study B 9 young adolescent females (mean age 15.0 ± 0.6 years), and Study C 14 older adolescent males (mean age 17.9 ± 0.7 years). Findings in these studies have been previously published in investigations of ...
Papillary Muscle Shortening in the Intact Dog
... intermarker distances. Graphs were made of the A and B distances plotted against the frame number. Successive frames represented time intervals of 33.3 msec. The time course of distance between the markers in one projection is presented in Figure 4A. For each view, the maximum distances (diastolic) ...
... intermarker distances. Graphs were made of the A and B distances plotted against the frame number. Successive frames represented time intervals of 33.3 msec. The time course of distance between the markers in one projection is presented in Figure 4A. For each view, the maximum distances (diastolic) ...
PDF - Circulation: Arrhythmia and Electrophysiology
... (April 2010 to June 2014). Relative to patients undergoing lead abandonment, patients undergoing lead explantation had more in-hospital procedure-related complications: 2.19% (n=273) versus 3.77% (n=469; P<0.001), respectively. Similarly, patients undergoing lead explantation had slightly higher rat ...
... (April 2010 to June 2014). Relative to patients undergoing lead abandonment, patients undergoing lead explantation had more in-hospital procedure-related complications: 2.19% (n=273) versus 3.77% (n=469; P<0.001), respectively. Similarly, patients undergoing lead explantation had slightly higher rat ...
PDF
... at inspiration and during expiration is pushed outwards (flail chest). If the fracture lines are unilateral, this is referred to as lateral instability. If the fracture lines are bilateral, the paradox respiratory movements are performed by the anterior segment of the chest wall- anterior instabilit ...
... at inspiration and during expiration is pushed outwards (flail chest). If the fracture lines are unilateral, this is referred to as lateral instability. If the fracture lines are bilateral, the paradox respiratory movements are performed by the anterior segment of the chest wall- anterior instabilit ...
LEFT VENTRICULAR ASSIST DEVICE (LVAD)
... LEFT VENTRICULAR ASSIST DEVICE (LVAD) and the other end (outflow) is sewn into the aorta, just above where it exits the heart. The pump on the LVAD spins constantly. The right side of the heart still pushes blood through the lungs and back to the left ventricle, but then the LVAD pump pulls the bloo ...
... LEFT VENTRICULAR ASSIST DEVICE (LVAD) and the other end (outflow) is sewn into the aorta, just above where it exits the heart. The pump on the LVAD spins constantly. The right side of the heart still pushes blood through the lungs and back to the left ventricle, but then the LVAD pump pulls the bloo ...
Presentation of Congenital Heart Disease in the Neonate and
... Prenatal ultrasonography may detect CHD before birth, but it is essential for primary care practitioners to assess any newborn who is suspected of having heart disease at the time of birth. This review considers CHDs that present during the newborn period or early infancy. The profound hemodynamic t ...
... Prenatal ultrasonography may detect CHD before birth, but it is essential for primary care practitioners to assess any newborn who is suspected of having heart disease at the time of birth. This review considers CHDs that present during the newborn period or early infancy. The profound hemodynamic t ...
Sonographic screening examination of the fetal heart
... left atrium, an intact cardiac ‘crux’ with normal offset of the two atrioventricular valves and intact ventricular septum. The morphological right ventricle (RV) is identified by the presence of the moderator band and tricuspid valve, this valve inserting more apically in the septum than does the mi ...
... left atrium, an intact cardiac ‘crux’ with normal offset of the two atrioventricular valves and intact ventricular septum. The morphological right ventricle (RV) is identified by the presence of the moderator band and tricuspid valve, this valve inserting more apically in the septum than does the mi ...
Cardiac Magnetic Resonance Imaging in Oncology
... Background: Cardiac magnetic resonance imaging (MRI) is emerging as an important diagnostic modality in the management of cardiovascular-related dysfunction in oncological diseases. Advances in imaging techniques have enhanced the detection and evaluation of cardiac masses; meanwhile, innovative app ...
... Background: Cardiac magnetic resonance imaging (MRI) is emerging as an important diagnostic modality in the management of cardiovascular-related dysfunction in oncological diseases. Advances in imaging techniques have enhanced the detection and evaluation of cardiac masses; meanwhile, innovative app ...
Update on Cardiovascular Implantable Electronic
... organism involved is strongly associated with the likelihood of serving as a manifestation of CIED infection, even in patients with no other evidence of CIED infection. In a cohort of 33 patients with implanted devices and subsequent Staphylococcus aureus bacteremia,26 nearly one half (45.4%) had co ...
... organism involved is strongly associated with the likelihood of serving as a manifestation of CIED infection, even in patients with no other evidence of CIED infection. In a cohort of 33 patients with implanted devices and subsequent Staphylococcus aureus bacteremia,26 nearly one half (45.4%) had co ...
Early Increase in Left Ventricular Compliance after Myocardial
... vessels were trimmed away and the LV was weighed to the nearest gram. Several theoretical and practical limitations of the above methodology are apparent. The relationship between the in vivo and in vitro P-V relationships is not well established. It seems reasonable to assume that the physiologic d ...
... vessels were trimmed away and the LV was weighed to the nearest gram. Several theoretical and practical limitations of the above methodology are apparent. The relationship between the in vivo and in vitro P-V relationships is not well established. It seems reasonable to assume that the physiologic d ...
Left Ventricular Dysfunction Induced by Monomorphic Ventricular
... improvement in left ventricular function was observed in 4 of the 5 patients who experienced a notable druginduced decrease in ventricular ectopic activity. This suggests that some patients diagnosed with ventricular arrhythmia secondary to dilated cardiomyopathy may actually have had the opposite p ...
... improvement in left ventricular function was observed in 4 of the 5 patients who experienced a notable druginduced decrease in ventricular ectopic activity. This suggests that some patients diagnosed with ventricular arrhythmia secondary to dilated cardiomyopathy may actually have had the opposite p ...
Cardiovascular Implantable Electronic Device Infections
... organism involved is strongly associated with the likelihood of serving as a manifestation of CIED infection, even in patients with no other evidence of CIED infection. In a cohort of 33 patients with implanted devices and subsequent Staphylococcus aureus bacteremia,26 nearly one half (45.4%) had co ...
... organism involved is strongly associated with the likelihood of serving as a manifestation of CIED infection, even in patients with no other evidence of CIED infection. In a cohort of 33 patients with implanted devices and subsequent Staphylococcus aureus bacteremia,26 nearly one half (45.4%) had co ...
Standards for the use of cardiopulmonary exercise testing
... goal is to assess peakVO2 rather than VO2max. PeakVO2 is defined as the highest VO2, averaged over a 20 to 30-s period, achieved at presumed maximal effort during an incremental exercise test, and may or may not be equal to VO2max, even if available evidence suggests that these two concepts are subs ...
... goal is to assess peakVO2 rather than VO2max. PeakVO2 is defined as the highest VO2, averaged over a 20 to 30-s period, achieved at presumed maximal effort during an incremental exercise test, and may or may not be equal to VO2max, even if available evidence suggests that these two concepts are subs ...
Tunnel Subaortic Stenosis
... the clinical, pathologic, and operative findings of 11 patients with this condition. Materials and Methods Selection of Patients The operative and necropsy records of the National Heart and Lung Institute (NHLI) from 1958 to 1975 were reviewed. Eleven patients in whom the hemodynamic, angiographic, ...
... the clinical, pathologic, and operative findings of 11 patients with this condition. Materials and Methods Selection of Patients The operative and necropsy records of the National Heart and Lung Institute (NHLI) from 1958 to 1975 were reviewed. Eleven patients in whom the hemodynamic, angiographic, ...
Fishing for the genetic basis of cardiovascular disease
... classified either as cardiomyopathy affecting contractile function or as arrhythmia, subsuming conditions with altered electrical excitability or conductance that lead to disturbed heart rhythm. CVD affecting cardiovascular function can arise at all ages. A substantial part of CVD is either directly ...
... classified either as cardiomyopathy affecting contractile function or as arrhythmia, subsuming conditions with altered electrical excitability or conductance that lead to disturbed heart rhythm. CVD affecting cardiovascular function can arise at all ages. A substantial part of CVD is either directly ...
Case Report: Congenital sub mitral left ventricle aneurysm with
... disruption of this muscular–fibrous union results in ...
... disruption of this muscular–fibrous union results in ...
Assessment of cardiac ischaemia and viability: role of cardiovascular magnetic resonance REVIEW Imaging
... From large statistics in USA, it is also evident that many patients with CAD do not experience angina pectoris before their first heart attack and this fraction is ranging from 50% (for men) up to 67% (in women).2 Thus, an estimated 40 000 –80 000 individuals per million are at risk for a heart att ...
... From large statistics in USA, it is also evident that many patients with CAD do not experience angina pectoris before their first heart attack and this fraction is ranging from 50% (for men) up to 67% (in women).2 Thus, an estimated 40 000 –80 000 individuals per million are at risk for a heart att ...
EKG Workshop – Beyond the Basics - AAIM
... the lead is the coronary sinus or 3) the lead is epicardial rather than transvenous. The supplementary slide for this case shows reliable ventricular pacing with a LBBB pattern as a result of the pacing catheter being in its proper location in the RV apex. 55 year old male – past history of possible ...
... the lead is the coronary sinus or 3) the lead is epicardial rather than transvenous. The supplementary slide for this case shows reliable ventricular pacing with a LBBB pattern as a result of the pacing catheter being in its proper location in the RV apex. 55 year old male – past history of possible ...
Doppler Echocardiography in Dilated Cardiomyopathy: Diastolic
... diastole [1]. Several studies have revealed a higher correlation between clinical status and echocardiographic parameters, reflecting entirely diastolic dysfunction (E and A deceleration time) and including the disadvantage that pure diastolic parameters are more influenced by heart rate and mitral ...
... diastole [1]. Several studies have revealed a higher correlation between clinical status and echocardiographic parameters, reflecting entirely diastolic dysfunction (E and A deceleration time) and including the disadvantage that pure diastolic parameters are more influenced by heart rate and mitral ...
Cardiac Auscultation The Ohio State University
... closure of the aortic and pulmonic valves. These sounds may be abnormal in certain conditions. For example, pericardial disease, pleural effusion, or myocardial failure from dilated cardiomyopathy can decrease the intensity of the first heart sound. Arrhythmias typically lead to variable intensity h ...
... closure of the aortic and pulmonic valves. These sounds may be abnormal in certain conditions. For example, pericardial disease, pleural effusion, or myocardial failure from dilated cardiomyopathy can decrease the intensity of the first heart sound. Arrhythmias typically lead to variable intensity h ...
comparison of prognosis between patients with acute coronary
... Despite improvements in diagnosis and therapy over the last years, mortality among patients with acute coronary syndrome is still high. Cardiovascular diseases are the main global cause of death. An estimated 17.5 million people died from cardiovascular disease in 2012, representing 31% of all globa ...
... Despite improvements in diagnosis and therapy over the last years, mortality among patients with acute coronary syndrome is still high. Cardiovascular diseases are the main global cause of death. An estimated 17.5 million people died from cardiovascular disease in 2012, representing 31% of all globa ...
Atrial fibrillation – etiology and pathogenesis
... calcium ions overloaded, enlarged/stretched atria, microRNA, inflammatory factors and miofibroblasts activation (11). All of them in one way or another, are probably responsible for remodeling phenomenon. Atrial fibrillation and atrial flutter deteriorate function and gradually remodel the atria org ...
... calcium ions overloaded, enlarged/stretched atria, microRNA, inflammatory factors and miofibroblasts activation (11). All of them in one way or another, are probably responsible for remodeling phenomenon. Atrial fibrillation and atrial flutter deteriorate function and gradually remodel the atria org ...
Main text
... From data of HRV, the distribution of cardiac autonomic nerve probably also related to lesions of coronary artery diseased. Even nowadays, there is different opinion focusing on difference of HRV between left- and right-coronary artery diseased. Janowska-Kulifiska et al19 found that some indicators ...
... From data of HRV, the distribution of cardiac autonomic nerve probably also related to lesions of coronary artery diseased. Even nowadays, there is different opinion focusing on difference of HRV between left- and right-coronary artery diseased. Janowska-Kulifiska et al19 found that some indicators ...
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.