Construction of the Heart`s Conduction Tree via Prim`s Algorithm
... the linear attenuation coefficient of water μwater as seen in Eqn. 1. μtissue − μwater ...
... the linear attenuation coefficient of water μwater as seen in Eqn. 1. μtissue − μwater ...
and diagnosis Ischaemic mitral regurgitation: mechanisms
... variation of ischaemic MR over time (fig 5). Dobutamine, which is widely used in the acute setting to support LV dysfunction, rarely provokes MR and more commonly causes no change or reduces the severity of MR, both in groups with impaired and preserved LV function.19 Other medical treatments have n ...
... variation of ischaemic MR over time (fig 5). Dobutamine, which is widely used in the acute setting to support LV dysfunction, rarely provokes MR and more commonly causes no change or reduces the severity of MR, both in groups with impaired and preserved LV function.19 Other medical treatments have n ...
A STUDY OF TRACINGS FROM THE REGION NEAR THE APEX OF
... which is in agreement with the pitch of the note elsewhere obtained. 2 The highest peak, S, occupies nearly the whole time between the A- and B-wave-groups, three tenths of a second, and represents the ventricular systole. Immediately preceding this large S-wave is a smaller wave, P, which appears m ...
... which is in agreement with the pitch of the note elsewhere obtained. 2 The highest peak, S, occupies nearly the whole time between the A- and B-wave-groups, three tenths of a second, and represents the ventricular systole. Immediately preceding this large S-wave is a smaller wave, P, which appears m ...
Transport of Pharmocokinetic Agents in the Myocardium
... fibers. The extracellular space consists of an incompressible fluid (mostly water) and collagen. Expansion and contraction of the fiber sheets leads to changes in pore size at the tissue level and therefore mixing of the extracellular volume. This effective "stirring" results in larger diffusion con ...
... fibers. The extracellular space consists of an incompressible fluid (mostly water) and collagen. Expansion and contraction of the fiber sheets leads to changes in pore size at the tissue level and therefore mixing of the extracellular volume. This effective "stirring" results in larger diffusion con ...
Anterior and posterior left ventricular sarcomere lengths behave
... linear trajectory during ejection) was similar between the anterior and posterior sites. Moreover, the mean SL+ (taken at the middle of the ejecting range) was also similar between the anterior and posterior sites. On the other hand, we observed no consistent effect of site on the relationships betw ...
... linear trajectory during ejection) was similar between the anterior and posterior sites. Moreover, the mean SL+ (taken at the middle of the ejecting range) was also similar between the anterior and posterior sites. On the other hand, we observed no consistent effect of site on the relationships betw ...
Differential Diagnosis of Wide QRS Complex Tachycardia
... -Correct diagnosis is important both for acute management and also subsequent management. -If we inject verapamil to a patient with VT and low EF , prolonged hypotension and hemodynamic deterioration happens. -Non of the criteria is perfect but they can be helpful. -The clinical situation of the pat ...
... -Correct diagnosis is important both for acute management and also subsequent management. -If we inject verapamil to a patient with VT and low EF , prolonged hypotension and hemodynamic deterioration happens. -Non of the criteria is perfect but they can be helpful. -The clinical situation of the pat ...
Northwest Community EMS System VENTRICULAR
... energy delivery during the vulnerable period of repolarization, that is, around the peak of the T wave on the ECG ("R-on-T" phenomenon), which can result in ventricular fibrillation. ...
... energy delivery during the vulnerable period of repolarization, that is, around the peak of the T wave on the ECG ("R-on-T" phenomenon), which can result in ventricular fibrillation. ...
Images and Case Reports in Arrhythmia and Electrophysiology
... as it was coaxial with the transseptal sheath and thus required minimal equipment adjustment in additional planes. We think that integration of 3D TEE with this transseptal technique can be applied as an alternative method of left atrial access in other situations such as deployment of the Watchman ...
... as it was coaxial with the transseptal sheath and thus required minimal equipment adjustment in additional planes. We think that integration of 3D TEE with this transseptal technique can be applied as an alternative method of left atrial access in other situations such as deployment of the Watchman ...
Hypophosphorylation of the Stiff N2B Titin Isoform Raises Cardiomyocyte
... cardiomyocytes. In left ventricular biopsies of heart failure (HF) patients, aortic stenosis (AS) patients, and controls (CON), we therefore related Fpassive of isolated cardiomyocytes to expression of titin isoforms and to phosphorylation of titin and titin isoforms. Biopsies were procured by trans ...
... cardiomyocytes. In left ventricular biopsies of heart failure (HF) patients, aortic stenosis (AS) patients, and controls (CON), we therefore related Fpassive of isolated cardiomyocytes to expression of titin isoforms and to phosphorylation of titin and titin isoforms. Biopsies were procured by trans ...
Usefulness of percutaneous closure of patent foramen ovale for
... a patent foramen ovale, following aortic root, valve, and arch replacement due to an aortic dissection in the setting of the Marfan syndrome. Following the operation, he failed extubation twice due to hypoxia. An extensive workup revealed a right-to-left shunt previously not seen. The patent foramen ...
... a patent foramen ovale, following aortic root, valve, and arch replacement due to an aortic dissection in the setting of the Marfan syndrome. Following the operation, he failed extubation twice due to hypoxia. An extensive workup revealed a right-to-left shunt previously not seen. The patent foramen ...
Neurocardiogenic Syncope
... other than an arrhyhmia has been identified but in whom symptoms persists despite treatment of this other cause ...
... other than an arrhyhmia has been identified but in whom symptoms persists despite treatment of this other cause ...
Quantification of and Correction for Left Ventricular
... Background. Measurement of regional left ventricular (LV) function is predicated on the ability to compare equivalent LV segments at different time points during the cardiac cycle. Standard techniques of short-axis acquisition in two-dimensional echocardiography, cine computed tomography, and standa ...
... Background. Measurement of regional left ventricular (LV) function is predicated on the ability to compare equivalent LV segments at different time points during the cardiac cycle. Standard techniques of short-axis acquisition in two-dimensional echocardiography, cine computed tomography, and standa ...
Effects of temperature on the electrical excitability of fish cardiac
... (about -80 mV) and thereby adjust the duration of AP to comply with heart rate at each temperature. The aim of this study was to examine how temperature acclimation affects excitability of the fish heart through modification of sodium (INa), the delayed rectifier potassium (IKr) and inward rectifier ...
... (about -80 mV) and thereby adjust the duration of AP to comply with heart rate at each temperature. The aim of this study was to examine how temperature acclimation affects excitability of the fish heart through modification of sodium (INa), the delayed rectifier potassium (IKr) and inward rectifier ...
the advantages of carvedilol in coronary artery disease
... acute phase of the myocardial infarction With the occlusion of the coronary artery, which lasts long enough, there appears the acute myocardial infarction (AIM). The aim of the therapy in AIM is to achieve, as early as possible, the reperfusion of infarctrelated artery (by thrombolysis), retain its ...
... acute phase of the myocardial infarction With the occlusion of the coronary artery, which lasts long enough, there appears the acute myocardial infarction (AIM). The aim of the therapy in AIM is to achieve, as early as possible, the reperfusion of infarctrelated artery (by thrombolysis), retain its ...
CIBMRD-24
... ECG signal sequence of cardiac cycles or ‘beats'. The Signal contains noise parts because of varied sources that are suppressed during processing of ECG signal. It is used in [2] Wavelet transform - provides good time decision at high frequencies and poor time decision at low frequencies. ...
... ECG signal sequence of cardiac cycles or ‘beats'. The Signal contains noise parts because of varied sources that are suppressed during processing of ECG signal. It is used in [2] Wavelet transform - provides good time decision at high frequencies and poor time decision at low frequencies. ...
Effects of Alcohol Restriction on Ambulatory Blood Pressure, Heart
... these findings by ambulatory BP monitoring have shown inconsistent results. Recently, Kawano et al17 reported that the restriction of alcohol intake for 4 weeks lowered daytime systolic BP but increased systolic and diastolic nighttime BP without affecting the average 24-h systolic and diastolic BP ...
... these findings by ambulatory BP monitoring have shown inconsistent results. Recently, Kawano et al17 reported that the restriction of alcohol intake for 4 weeks lowered daytime systolic BP but increased systolic and diastolic nighttime BP without affecting the average 24-h systolic and diastolic BP ...
pacemaker malfunction
... All ventricular electrogram deflections seen by the pacing lead that exceed the sensitivity setting will be identified by the pacemaker as intrinsic R waves ...
... All ventricular electrogram deflections seen by the pacing lead that exceed the sensitivity setting will be identified by the pacemaker as intrinsic R waves ...
2012 ACCF/AHA/HRS Focused Update
... as observational, retrospective, prospective, or randomized, as appropriate. For certain conditions for which inadequate data are available, recommendations are based on expert consensus and clinical experience and are ranked as LOE C. When recommendations at LOE C are supported by historical clinic ...
... as observational, retrospective, prospective, or randomized, as appropriate. For certain conditions for which inadequate data are available, recommendations are based on expert consensus and clinical experience and are ranked as LOE C. When recommendations at LOE C are supported by historical clinic ...
EKG no audio
... • The degree of excitability is directly related to how much recovery time the heart has had before the next electrical stimulus is received ...
... • The degree of excitability is directly related to how much recovery time the heart has had before the next electrical stimulus is received ...
Heart Valves - The Young Scientist Program
... (the “lub” sound) is known to doctors as S1. This sound is produced by the closure of the atrioventricular valve and the mitrial valve (at the same time), and signifies that the atria are done contracting and done pushing blood into the ventricles. The second so ...
... (the “lub” sound) is known to doctors as S1. This sound is produced by the closure of the atrioventricular valve and the mitrial valve (at the same time), and signifies that the atria are done contracting and done pushing blood into the ventricles. The second so ...
Heart Surgery and Dissection
... If there is a long-term demand on the heart to pump more blood – for example during exercise or in pregnancy – the body responds by making the heart cells larger. Conditions like high blood pressure also cause the heart to grow, but in this case increased size does not improve the heart’s pumping ca ...
... If there is a long-term demand on the heart to pump more blood – for example during exercise or in pregnancy – the body responds by making the heart cells larger. Conditions like high blood pressure also cause the heart to grow, but in this case increased size does not improve the heart’s pumping ca ...
UConn Biomedical Engineering
... 1. The circuit board will be assembled from left to right. First place the 3.2 uf (microfarad) capacitor into the C1 slot. 2. Bend both ends of the wire to the back, solder, and clip. Refer to the instructions in the Soldering section. 3. Place the 1 pf (picofarad) capacitor into the C2 slot. Solder ...
... 1. The circuit board will be assembled from left to right. First place the 3.2 uf (microfarad) capacitor into the C1 slot. 2. Bend both ends of the wire to the back, solder, and clip. Refer to the instructions in the Soldering section. 3. Place the 1 pf (picofarad) capacitor into the C2 slot. Solder ...
PDF Article
... of hypertrophic cardiomyopathy . Analysis of myocardial fibrosis. The extent of fibrous tissue formation was assessed qualitatively in each tissue section: 0 (none) , 1 + (mild), 2 + (moderate) and 3 + (severe) . Mild fibrosis was judged to be present when an isolated small scar or interstitial fibr ...
... of hypertrophic cardiomyopathy . Analysis of myocardial fibrosis. The extent of fibrous tissue formation was assessed qualitatively in each tissue section: 0 (none) , 1 + (mild), 2 + (moderate) and 3 + (severe) . Mild fibrosis was judged to be present when an isolated small scar or interstitial fibr ...
Congestive heart failure in the dog
... develops following a rise in ventricular diastolic filling pressures, which is transmitted back to the pulmonary veins or systemic veins. This leads to elevated capillary pressures and edema formation. Left-sided CHF is most commonly seen as pulmonary edema in cats, although a small to moderate volu ...
... develops following a rise in ventricular diastolic filling pressures, which is transmitted back to the pulmonary veins or systemic veins. This leads to elevated capillary pressures and edema formation. Left-sided CHF is most commonly seen as pulmonary edema in cats, although a small to moderate volu ...