Dynamics of low-frequency R-R interval oscillations preceding
... custom software (Burdick, Inc, Milton, Wis) and verified by a cardiologist. The'R-R intervals between normal QRS complexes were extracted, and a regularly" spaced time series was sampled at 2 Hz with the use of a boxcar low-pass filter. 27 Gaps in the time series resulting from noise or ectopic beat ...
... custom software (Burdick, Inc, Milton, Wis) and verified by a cardiologist. The'R-R intervals between normal QRS complexes were extracted, and a regularly" spaced time series was sampled at 2 Hz with the use of a boxcar low-pass filter. 27 Gaps in the time series resulting from noise or ectopic beat ...
Commotio Cordis
... Commercially available chest protectors may be inadequate in the prevention of sudden death due to commotio cordis. Reasons include the fact that the protector may move when the arms are raised, leaving the precordium exposed composite material the protector is made from does not adequately attenuat ...
... Commercially available chest protectors may be inadequate in the prevention of sudden death due to commotio cordis. Reasons include the fact that the protector may move when the arms are raised, leaving the precordium exposed composite material the protector is made from does not adequately attenuat ...
(Hemiechinus auritus) heart - Tubitak Journals
... The AV node cells and their arrangement as a mass of interlacing bundles interwoven with collagen fibers in the hedgehog is similar to that in humans (Titus et al., 1963), dogs (James, 1964), horses (Bishop and Cole, 1967), cattle (James, 1965), camels (Ghazi and Tadjalli, 2002), goats (Nabipour, 20 ...
... The AV node cells and their arrangement as a mass of interlacing bundles interwoven with collagen fibers in the hedgehog is similar to that in humans (Titus et al., 1963), dogs (James, 1964), horses (Bishop and Cole, 1967), cattle (James, 1965), camels (Ghazi and Tadjalli, 2002), goats (Nabipour, 20 ...
How to read the ECG in athletes: distinguishing normal form abnormal
... Affects the transmebranic ion channel exchange, in the absence of structural cardiac abnormalities 18-30% of cases associated with Gene SCN5A (deficit of Na+ conductance); Electrical abnormalities present in ECG leads exploring the RV outflow tract (V2,V3); ...
... Affects the transmebranic ion channel exchange, in the absence of structural cardiac abnormalities 18-30% of cases associated with Gene SCN5A (deficit of Na+ conductance); Electrical abnormalities present in ECG leads exploring the RV outflow tract (V2,V3); ...
042601 Cardiac Resuscitation
... T least 225,000 people in the United States will die suddenly this year from coronary heart disease before they reach a hospital.1,2 In addition, an estimated 370,000 to 750,000 patients will have a cardiac arrest and undergo attempted resuscitation during hospitalization.3 The causes of cardiac arr ...
... T least 225,000 people in the United States will die suddenly this year from coronary heart disease before they reach a hospital.1,2 In addition, an estimated 370,000 to 750,000 patients will have a cardiac arrest and undergo attempted resuscitation during hospitalization.3 The causes of cardiac arr ...
Heart Disease in Dogs: An Overview
... valve then becomes deformed, and this leads to heart dysfunction. The valve disease that occurs secondarily to infectious endocarditis is usually permanent. Heart-based tumors can occur in dogs, and the most common of these is hemangiosarcoma ...
... valve then becomes deformed, and this leads to heart dysfunction. The valve disease that occurs secondarily to infectious endocarditis is usually permanent. Heart-based tumors can occur in dogs, and the most common of these is hemangiosarcoma ...
Syncope 1.CS.Name the type of syncope ,that is most frequently met
... B. Death of cardiac disease C. The sudden loss of consciousness D. Occurs within one hour of the onset of acute symptoms E. Occurs within two hours after the onset of acute symptoms 2.CS.In the definition of the sudden cardiac death we identify four elements that succeed, except the: A. Prodroms B. ...
... B. Death of cardiac disease C. The sudden loss of consciousness D. Occurs within one hour of the onset of acute symptoms E. Occurs within two hours after the onset of acute symptoms 2.CS.In the definition of the sudden cardiac death we identify four elements that succeed, except the: A. Prodroms B. ...
Fluoroless cryo-ablation of para
... diaskopije nismo uporabili, s čimer smo izključili možnost škodljivih vplivov rentgenskega sevanja. ...
... diaskopije nismo uporabili, s čimer smo izključili možnost škodljivih vplivov rentgenskega sevanja. ...
The advent of cardiac resynchronization therapy has created a
... in the literature [43–45] and more recently on the Internet (third party insurers, etc.) in relation to CRT [46–49]. This entity does not exist because HF by definition must have congestion and be symptomatic though the symptoms may sometimes be unimpressive. This mistake is similar to using “class ...
... in the literature [43–45] and more recently on the Internet (third party insurers, etc.) in relation to CRT [46–49]. This entity does not exist because HF by definition must have congestion and be symptomatic though the symptoms may sometimes be unimpressive. This mistake is similar to using “class ...
Complete Article - Journal of Morphological Science
... to eject the blood of a given camera, and thus the thicker portion of the myocardium is the one that involves the left ventricle. The layer located internally, called endocardium, is constituted of endothelial tissue and the subendothelial layer of thick elastic and collagen fibers, which follows a ...
... to eject the blood of a given camera, and thus the thicker portion of the myocardium is the one that involves the left ventricle. The layer located internally, called endocardium, is constituted of endothelial tissue and the subendothelial layer of thick elastic and collagen fibers, which follows a ...
Accuracy of pulse oximeters in estimating heart rate
... probe readings correlated well with ECG tracings at all work rates (Table 1). A comparison of mean heart rate at all work rates showed that oximeter readings were not significantly different from those of ECG. However, comparison of heart rate at each level of work showed that oximeter readings sign ...
... probe readings correlated well with ECG tracings at all work rates (Table 1). A comparison of mean heart rate at all work rates showed that oximeter readings were not significantly different from those of ECG. However, comparison of heart rate at each level of work showed that oximeter readings sign ...
1999 - Pediatrics
... At later stages in severe cases of left heart hypoplasia (LHH), the right ventricle has to act as a systemic pump. This model, based on mechanical intervention with normal hemodynamics, is one possible experimental approach to study human hypoplastic left heart syndrome. Production of chick LHH was ...
... At later stages in severe cases of left heart hypoplasia (LHH), the right ventricle has to act as a systemic pump. This model, based on mechanical intervention with normal hemodynamics, is one possible experimental approach to study human hypoplastic left heart syndrome. Production of chick LHH was ...
Cardiac Morphology and Blood Pressure in the Adult Zebrafish
... arteriosus was located anterior to the ventricle, and functioned as an elastic reservoir to absorb the rapid rise of pressure during ventricular contraction. The dense matrix of collagen interspersed across the entire bulbus arteriosus exemplified the characteristics of vasculature smooth muscle. Th ...
... arteriosus was located anterior to the ventricle, and functioned as an elastic reservoir to absorb the rapid rise of pressure during ventricular contraction. The dense matrix of collagen interspersed across the entire bulbus arteriosus exemplified the characteristics of vasculature smooth muscle. Th ...
Secundum type atrial septal defect with prolonged PR - Heart
... atrial septal defect has not such a benign natural history as that usually found in atrial septal defect. The reports of Campbell and Polani (I96I) and Zetterqvist et al. (197I) also each listed one early death, the former at 6 months of age, the latter caused by heart failure in the fourth month. T ...
... atrial septal defect has not such a benign natural history as that usually found in atrial septal defect. The reports of Campbell and Polani (I96I) and Zetterqvist et al. (197I) also each listed one early death, the former at 6 months of age, the latter caused by heart failure in the fourth month. T ...
Evaluation of arrhythmias in the late hospital phase - Heart
... antiarrhythmic therapy in the coronary care unit is clearly established (Killip and Kimball, I967; Lown et al., I967; DeSanctis, I97I; Killip, 1972), little is known about the incidence and significance of arrhythmias occurring during the time in hospital after leaving the coronary care unit. The pr ...
... antiarrhythmic therapy in the coronary care unit is clearly established (Killip and Kimball, I967; Lown et al., I967; DeSanctis, I97I; Killip, 1972), little is known about the incidence and significance of arrhythmias occurring during the time in hospital after leaving the coronary care unit. The pr ...
ACLS Pharmacology
... • To convert to normal sinus rhythm or to slow ventricular response (or both) in SVT, atrial fibrillation, or atrial flutter • Second-line agents after adenosine, diltiazem, or digitalis • To reduce myocardial ischemia and damage in AMI patients with elevated heart rate, blood pressure, or both • Fo ...
... • To convert to normal sinus rhythm or to slow ventricular response (or both) in SVT, atrial fibrillation, or atrial flutter • Second-line agents after adenosine, diltiazem, or digitalis • To reduce myocardial ischemia and damage in AMI patients with elevated heart rate, blood pressure, or both • Fo ...
Atrial Fibrillation Tutorial
... The treatment strategies are generally based on three sets of symptoms: patients with (1) FAST/ IRREGULAR rhythms, (2) SLOW, symptomatic rhythms, or NO SYMPTOMS. 1. For patients with symptoms of FAST, irregular heart rhythms during periods of atrial fibrillation, whether this is felt or not (continu ...
... The treatment strategies are generally based on three sets of symptoms: patients with (1) FAST/ IRREGULAR rhythms, (2) SLOW, symptomatic rhythms, or NO SYMPTOMS. 1. For patients with symptoms of FAST, irregular heart rhythms during periods of atrial fibrillation, whether this is felt or not (continu ...
The Year in Cardiology 2013: heart failure
... Despite success of standard heart failure therapy, morbidity and mortality remain unacceptably high. Adding angiotensin receptor blockers (ARBs) or the renin inhibitor aliskiren to standard angiotensin converting enzyme inhibitors (ACEIs) has not added benefit but increased side effects.19 These stu ...
... Despite success of standard heart failure therapy, morbidity and mortality remain unacceptably high. Adding angiotensin receptor blockers (ARBs) or the renin inhibitor aliskiren to standard angiotensin converting enzyme inhibitors (ACEIs) has not added benefit but increased side effects.19 These stu ...
Mutant ryanodine receptors in catecholaminergic polymorphic
... appeared was recorded. Next day, the CPVT patients underwent right cardiac catheterization with a protocol of MAP recording. The treatment with beta-adrenergic blocking agents was discontinued at least five drug half-lives before the exercise test until the MAP recording was completed. We recruited c ...
... appeared was recorded. Next day, the CPVT patients underwent right cardiac catheterization with a protocol of MAP recording. The treatment with beta-adrenergic blocking agents was discontinued at least five drug half-lives before the exercise test until the MAP recording was completed. We recruited c ...
New Insights Into Application of Cardiac Monophasic Action Potential
... during cardiac ischemia (Liu et al. 2007). On the other hand, the ischemia-reperfusion can induce significant down-regulation of INa (sodium current) and Ito (transient outward potassium current) and upregulation of ICa-L (L-type calcium current), which may underlie the altered electrical activity a ...
... during cardiac ischemia (Liu et al. 2007). On the other hand, the ischemia-reperfusion can induce significant down-regulation of INa (sodium current) and Ito (transient outward potassium current) and upregulation of ICa-L (L-type calcium current), which may underlie the altered electrical activity a ...
Differentiation of myoendocrine cardiac cells from presumptive heart
... tive territories adjacent to the prospective heart mesoderm are involved in the cardiac endocrine differentiation. In this work we compared combinations of tissues containing endoderm cells with others in which endoderm was not included, testing them for the formation of a beating heart and for trop ...
... tive territories adjacent to the prospective heart mesoderm are involved in the cardiac endocrine differentiation. In this work we compared combinations of tissues containing endoderm cells with others in which endoderm was not included, testing them for the formation of a beating heart and for trop ...
Module 6
... rate FIGURE 7-15. Abnormal QT interval prolongation in patient taking quinidine. The QT interval (0.6 seconds) is markedly prolonged for the heart rate (65/min) and the QT interval is greater than one half the R-R ...
... rate FIGURE 7-15. Abnormal QT interval prolongation in patient taking quinidine. The QT interval (0.6 seconds) is markedly prolonged for the heart rate (65/min) and the QT interval is greater than one half the R-R ...
Extreme respiratory sinus arrhythmia enables overwintering black bear
... [15, 25]. Notched T-waves can be seen in Fig. 2 for bears 1 and 3. This morphology has been associated with long QT syndrome and with voltage gradients between myocardial layers; however, the underlying cause is unknown [17, 28]. The minimum recorded heart rate in the study was 4.5 bpm (13-s sinus p ...
... [15, 25]. Notched T-waves can be seen in Fig. 2 for bears 1 and 3. This morphology has been associated with long QT syndrome and with voltage gradients between myocardial layers; however, the underlying cause is unknown [17, 28]. The minimum recorded heart rate in the study was 4.5 bpm (13-s sinus p ...
Palpitations Arrhythmia from a GP Perspective
... • Rapid, irregular – AF, AFL, Atrial tachycardia, multiple PACs or PVCs • Rapid, regular – SVT, VT Circumstances: • Panic/anxiety – the chicken or the egg? • Catecholamine excess – Exercise – idiopathic RVOT VT, AF – Emotional startle – Long QT syndrome ...
... • Rapid, irregular – AF, AFL, Atrial tachycardia, multiple PACs or PVCs • Rapid, regular – SVT, VT Circumstances: • Panic/anxiety – the chicken or the egg? • Catecholamine excess – Exercise – idiopathic RVOT VT, AF – Emotional startle – Long QT syndrome ...