cardio i - jan 2015
... Atrial Flutter Etiology Results when the AV node cannot conduct all the impulses. Impulses may be conducted in fixed or variable ratios. Usually associated with organic disease such as congestive heart failure (rarely seen with MI). ...
... Atrial Flutter Etiology Results when the AV node cannot conduct all the impulses. Impulses may be conducted in fixed or variable ratios. Usually associated with organic disease such as congestive heart failure (rarely seen with MI). ...
65 ECHOCARDIOGRAPHIC CHARACTERISTIC OF LEFT
... Committee for Biomedical Research. The subjects partici- transthoracic echocardiograms were recorded using a Phipated in the study after being informed subjects and their lips sonograph with a 3.5 MHz transducer, in the left lateral parents about testing procedures, possible risks and dis- decubitus ...
... Committee for Biomedical Research. The subjects partici- transthoracic echocardiograms were recorded using a Phipated in the study after being informed subjects and their lips sonograph with a 3.5 MHz transducer, in the left lateral parents about testing procedures, possible risks and dis- decubitus ...
Pulmonary Hypertension Advances in Hypertension and
... “Ten years ago physicians treating pulmonary hypertension would have been amazed at today’s options for managing a disease that had a dismal prognosis. Progress has been swift, and we stand at the threshold of a new era in treatment. As our treatment options for pulmonary hypertension have expanded ...
... “Ten years ago physicians treating pulmonary hypertension would have been amazed at today’s options for managing a disease that had a dismal prognosis. Progress has been swift, and we stand at the threshold of a new era in treatment. As our treatment options for pulmonary hypertension have expanded ...
Temporary epicardial pacing after cardiac surgery
... in the atrium that has been conducted to the ventricle. As this endogenous rhythm is likely to be mechanically more efficient than pacing, the timing cycle is reset, delaying the next atrial spike and allowing the possibility of ongoing conducted endogenous atrial depolarisations completely inhibiti ...
... in the atrium that has been conducted to the ventricle. As this endogenous rhythm is likely to be mechanically more efficient than pacing, the timing cycle is reset, delaying the next atrial spike and allowing the possibility of ongoing conducted endogenous atrial depolarisations completely inhibiti ...
47 an analysis of control of the ventricle of the mollusc mercenaria
... increased when external Ca2+ was raised from 0 to 9mmol l21. Both the amplitude and frequency of beats were maximal at a Ca2+ concentration around 9mmol l21. Concentrations of extracellular Ca2+ greater than 18mmol l21 inhibited beating and caused a slight membrane depolarization. The membrane becam ...
... increased when external Ca2+ was raised from 0 to 9mmol l21. Both the amplitude and frequency of beats were maximal at a Ca2+ concentration around 9mmol l21. Concentrations of extracellular Ca2+ greater than 18mmol l21 inhibited beating and caused a slight membrane depolarization. The membrane becam ...
ACC/AHA Guideline
... Association Science Advisory and Coordinating Committee in August 2008. The American Heart Association requests that this document be cited as follows: Warnes CA, Williams RG, Bashore TM, Child JS, Connolly HM, Dearani JA, del Nido P, Fasules JW, Graham TP Jr, Hijazi ZM, Hunt SA, King ME, Landzberg ...
... Association Science Advisory and Coordinating Committee in August 2008. The American Heart Association requests that this document be cited as follows: Warnes CA, Williams RG, Bashore TM, Child JS, Connolly HM, Dearani JA, del Nido P, Fasules JW, Graham TP Jr, Hijazi ZM, Hunt SA, King ME, Landzberg ...
Innocent Cardiac Murmur in Puppies: Prevalence, Correlation with
... murmur and 4 Cairn terrier pups (all from the same 50-day-old litter) with an intermittent systolic murmur were examined with an echocardiogram. The point of maximal intensity of the murmur in all the 5 puppies was in the region of the left cardiac base. The maximal murmur intensity in the latter 4 ...
... murmur and 4 Cairn terrier pups (all from the same 50-day-old litter) with an intermittent systolic murmur were examined with an echocardiogram. The point of maximal intensity of the murmur in all the 5 puppies was in the region of the left cardiac base. The maximal murmur intensity in the latter 4 ...
Atrial Electrophysiological Remodeling and Fibrillation in Heart Failure
... APD shortening in patients with LVSD remain elusive. Atrial dilatation is seen commonly in the course of cardiac failure.3 In trabeculae and myocytes taken from dilated atria, APD90 was shorter and the plateau was markedly depressed compared to trabeculae and myocytes from nondilated atria.17 Howeve ...
... APD shortening in patients with LVSD remain elusive. Atrial dilatation is seen commonly in the course of cardiac failure.3 In trabeculae and myocytes taken from dilated atria, APD90 was shorter and the plateau was markedly depressed compared to trabeculae and myocytes from nondilated atria.17 Howeve ...
Diagnosis and Treatment of Pulmonary Hypertension -
... pulmonary embolus may cause right ventricular failure but not severe pulmonary hypertension. Chronic thromboembolism can provoke severe pulmonary hypertension, but this condition occurs in fewer than 1 percent of patients with thromboembolic disease.11 Clinical Presentation Pulmonary hypertension of ...
... pulmonary embolus may cause right ventricular failure but not severe pulmonary hypertension. Chronic thromboembolism can provoke severe pulmonary hypertension, but this condition occurs in fewer than 1 percent of patients with thromboembolic disease.11 Clinical Presentation Pulmonary hypertension of ...
Advances in Arrhythmia and Electrophysiology
... dence of cardiac rupture and major trauma increased. Thus, at these velocities, our model becomes more of a cardiac contusion model. An important concept for prevention is that softer, more pliable objects are less likely to cause ventricular fibrillation.19,20 More recently, the shape of the impact ...
... dence of cardiac rupture and major trauma increased. Thus, at these velocities, our model becomes more of a cardiac contusion model. An important concept for prevention is that softer, more pliable objects are less likely to cause ventricular fibrillation.19,20 More recently, the shape of the impact ...
Document
... Keywords: Ventricular pacing; Helical myocardial ventricular band; Ventricular function; Helical heart; Sonomicrometry ...
... Keywords: Ventricular pacing; Helical myocardial ventricular band; Ventricular function; Helical heart; Sonomicrometry ...
Consensus on Hypertrophic Cardiomyopathy.
... or posterior leaflet of the mitral valve, the tendinous cords or both; the mitral valve is swept towards the septum as a result of dragging (Venturi effect), causing mitral regurgitation. Mid-ventricular obstruction is due to an anomalous insertion of the anterior papillary muscle or to excessive ...
... or posterior leaflet of the mitral valve, the tendinous cords or both; the mitral valve is swept towards the septum as a result of dragging (Venturi effect), causing mitral regurgitation. Mid-ventricular obstruction is due to an anomalous insertion of the anterior papillary muscle or to excessive ...
Temporary Pacing power point education
... Abnormal Pacing • Ventricular undersensing – Ventricular pacing spikes occur regardless of QRS complexes – Pacemaker is not “seeing” intrinsic activity ...
... Abnormal Pacing • Ventricular undersensing – Ventricular pacing spikes occur regardless of QRS complexes – Pacemaker is not “seeing” intrinsic activity ...
Prospective and Retrospective ECG Gating for Thoracic CT
... Thoracic aortic CT angiography with cardiac gating may now be considered the preferred technique for thoracic CT angiography when diagnostic concern relates to the aortic sinus, ascending aorta, or coronary arteries. An alternative technique is gated thoracic aortic MR angiography using steadystate ...
... Thoracic aortic CT angiography with cardiac gating may now be considered the preferred technique for thoracic CT angiography when diagnostic concern relates to the aortic sinus, ascending aorta, or coronary arteries. An alternative technique is gated thoracic aortic MR angiography using steadystate ...
Diagnosis and ablation of atypical atrial tachycardia and flutter
... change in the activation sequence among the atrial electrograms that are being recorded, P-wave morphology, or cycle length. It is important to keep this in mind when ablation across an isthmus appears to not be affecting the tachycardia (Figure 4A). The isthmus already may have been blocked and may ...
... change in the activation sequence among the atrial electrograms that are being recorded, P-wave morphology, or cycle length. It is important to keep this in mind when ablation across an isthmus appears to not be affecting the tachycardia (Figure 4A). The isthmus already may have been blocked and may ...
Left Ventricular Diastolic Mechanical Dyssynchrony and Associated
... basal septum (cyan) curves are demonstrated. In B, curves from all 4 points are demonstrated in the same cardiac cycles (yellow, mitral annulus; cyan, basal septum; red, mid lateral wall; green, midseptum). The time from QRS onset to peak early diastolic velocity (E⬘) was then measured at each of th ...
... basal septum (cyan) curves are demonstrated. In B, curves from all 4 points are demonstrated in the same cardiac cycles (yellow, mitral annulus; cyan, basal septum; red, mid lateral wall; green, midseptum). The time from QRS onset to peak early diastolic velocity (E⬘) was then measured at each of th ...
principles of doppler echocardiography and the
... area are moving at approximately the same speed and in the same direction (Fig. 1.2). Due to friction, flow is always slightly slower near the walls of a vessel. With the pulsations of the Figure 1.2: Diagrammatic representation of normal heart, the red cells generally accelerate and laminar flow in ...
... area are moving at approximately the same speed and in the same direction (Fig. 1.2). Due to friction, flow is always slightly slower near the walls of a vessel. With the pulsations of the Figure 1.2: Diagrammatic representation of normal heart, the red cells generally accelerate and laminar flow in ...
Exercise-induced intrapulmonary arteriovenous shunting in healthy
... that any difference between the actual A-aDO2 and that predicted from the measured amount of V̇A/Q̇ nonuniformity given by MIGET can be attributed to diffusion limitation. With the use of this technique, significant amounts of diffusion limitation, up to two-thirds of the total A-aDO2, have been pre ...
... that any difference between the actual A-aDO2 and that predicted from the measured amount of V̇A/Q̇ nonuniformity given by MIGET can be attributed to diffusion limitation. With the use of this technique, significant amounts of diffusion limitation, up to two-thirds of the total A-aDO2, have been pre ...
File
... or greater • May be confused with atrial fibrillation • Observed in patients with advanced chronic obstructive pulmonary disease, digoxin toxicity, and electrolyte imbalances. ...
... or greater • May be confused with atrial fibrillation • Observed in patients with advanced chronic obstructive pulmonary disease, digoxin toxicity, and electrolyte imbalances. ...
Hypertensive heart disease. A complex syndrome or a hypertensive
... mass has been corrected for body surface area or body weight. However, this gender difference only appears to hold true for pre-menopausal women, raising the possibility of a preventive role of oestrogens in the pathogenesis of left ventricular hypertrophy[27]. In left ventricular hypertrophy, increa ...
... mass has been corrected for body surface area or body weight. However, this gender difference only appears to hold true for pre-menopausal women, raising the possibility of a preventive role of oestrogens in the pathogenesis of left ventricular hypertrophy[27]. In left ventricular hypertrophy, increa ...
Unusual Branching Pattern of Left Coronary Artery
... its emergence, entered into the myocardium of right ventricle and ended there. Further on the same side, another new artery named as luminal artery arose from the AIV after 1.50 cm from its origin. This artery passed between the ascending aorta and pulmonary trunk and then entered the infundibulum o ...
... its emergence, entered into the myocardium of right ventricle and ended there. Further on the same side, another new artery named as luminal artery arose from the AIV after 1.50 cm from its origin. This artery passed between the ascending aorta and pulmonary trunk and then entered the infundibulum o ...
Haemodynamic evaluation of pulmonary hypertension
... is important to prevent, diagnose and treat pulmonary infections in PH patients. Altitudes w1500 m must be avoided without supplemental oxygen, and altitudes w3000 m must be discouraged. The pathogenic role of endogenous endothelin-1 has been stressed, together with impaired synthesis of vasorelaxan ...
... is important to prevent, diagnose and treat pulmonary infections in PH patients. Altitudes w1500 m must be avoided without supplemental oxygen, and altitudes w3000 m must be discouraged. The pathogenic role of endogenous endothelin-1 has been stressed, together with impaired synthesis of vasorelaxan ...
Systolic and Diastolic Heart Failure
... Patients maintain a low-salt diet (3-6 g /day) in order to minimize fluid overload. ...
... Patients maintain a low-salt diet (3-6 g /day) in order to minimize fluid overload. ...
Evaluation of Diastolic Function: How Practical Is it?
... diastolic dysfunction with diastolic heart failure. When patients with preserved systolic function present with classic symptoms of heart failure, they are usually at more advanced stages of diastolic dysfunction, manifesting as diastolic dysfunction grade 2, 3, or 4 on echocardiography. I agree wit ...
... diastolic dysfunction with diastolic heart failure. When patients with preserved systolic function present with classic symptoms of heart failure, they are usually at more advanced stages of diastolic dysfunction, manifesting as diastolic dysfunction grade 2, 3, or 4 on echocardiography. I agree wit ...
Chapter_031
... Pulmonary veins connect to the right side of the heart, directly or indirectly through one or more systemic veins that drain into the right atrium ...
... Pulmonary veins connect to the right side of the heart, directly or indirectly through one or more systemic veins that drain into the right atrium ...
Mitral insufficiency
Mitral insufficiency (MI), mitral regurgitation or mitral incompetence is a disorder of the heart in which the mitral valve does not close properly when the heart pumps out blood. It is the abnormal leaking of blood backwards from the left ventricle, through the mitral valve, into the left atrium, when the left ventricle contracts, i.e. there is regurgitation of blood back into the left atrium. MI is the most common form of valvular heart disease.