Tetralogy of Fallot and its Radiologic Manifestation
... ejection murmur at the L sternal border, no right ventricular lift, point of maximum impulse displaced to the L • Peripheral pulses normal ...
... ejection murmur at the L sternal border, no right ventricular lift, point of maximum impulse displaced to the L • Peripheral pulses normal ...
Peripartum cardiomyopathy- a pregnancy related disorder
... Follow up studies have shown that patients with higher LVEF at presentation portends better cure rates and shorter recovery time.12It is also true that those patients with high initial LVEF are less likely to have a relapse during a subsequent pregnancy.13Echocardiography as a non invasive test can ...
... Follow up studies have shown that patients with higher LVEF at presentation portends better cure rates and shorter recovery time.12It is also true that those patients with high initial LVEF are less likely to have a relapse during a subsequent pregnancy.13Echocardiography as a non invasive test can ...
Letter to the editor: “A return to the venous return - AJP
... It may be helpful in establishing new parameters for this debate if those who interpret right atrial pressure (PRA) as a “back pressure” impeding venous return and who posit the gradient between PMS and PRA as a driving force that determines venous return would comment on the following two observati ...
... It may be helpful in establishing new parameters for this debate if those who interpret right atrial pressure (PRA) as a “back pressure” impeding venous return and who posit the gradient between PMS and PRA as a driving force that determines venous return would comment on the following two observati ...
Left Ventricular Dynamic Geometry in the Intact and Open Chest Dog
... The three principal directions of dilation or contraction of the deforming ventricle are given by the three mutually perpendicular eigenvectors of D. To visualize what principal directions are, consider stretching the rubber band shown in Figure 3. Lines I and II change length but not direction when ...
... The three principal directions of dilation or contraction of the deforming ventricle are given by the three mutually perpendicular eigenvectors of D. To visualize what principal directions are, consider stretching the rubber band shown in Figure 3. Lines I and II change length but not direction when ...
Digitalis Toxicity: A Fading but Crucial Complication to Recognize
... atrioventricular node, by prolonging its effective refractory period and through partial vagal and antiadrenergic influence.24 In many situations, both ectopy and depression of pacemakers and conduction, respectively, can overlap. This can cause inhibition at one level while triggering accelerated o ...
... atrioventricular node, by prolonging its effective refractory period and through partial vagal and antiadrenergic influence.24 In many situations, both ectopy and depression of pacemakers and conduction, respectively, can overlap. This can cause inhibition at one level while triggering accelerated o ...
The Abdominojugular Reflux Sign
... with the disappearance of the symptoms of cardiac failure” (3). In Butman’s study (8), the abdominojugular reflux sign was positive in 11 patients who had no jugular venous distension. The mean (⫾ SD) pulmonary capillary wedge pressure of these patients was 22 mm Hg (⫾ 5), suggesting that the abdomi ...
... with the disappearance of the symptoms of cardiac failure” (3). In Butman’s study (8), the abdominojugular reflux sign was positive in 11 patients who had no jugular venous distension. The mean (⫾ SD) pulmonary capillary wedge pressure of these patients was 22 mm Hg (⫾ 5), suggesting that the abdomi ...
Digitalis Toxicity: A Fading but Crucial Complication to Recognize REVIEW
... atrioventricular node, by prolonging its effective refractory period and through partial vagal and antiadrenergic influence.24 In many situations, both ectopy and depression of pacemakers and conduction, respectively, can overlap. This can cause inhibition at one level while triggering accelerated o ...
... atrioventricular node, by prolonging its effective refractory period and through partial vagal and antiadrenergic influence.24 In many situations, both ectopy and depression of pacemakers and conduction, respectively, can overlap. This can cause inhibition at one level while triggering accelerated o ...
Quantification of the Contribution of Cardiac and Arterial - VU-dare
... parameters in the control group (Emin). There was a good agreement (Figure 2) between measured and predicted arterial pressure and flow, which supports that the model parameter values we used are correct. The only arbitrary parameter we entered was venous filling pressure in the control group. As LV ...
... parameters in the control group (Emin). There was a good agreement (Figure 2) between measured and predicted arterial pressure and flow, which supports that the model parameter values we used are correct. The only arbitrary parameter we entered was venous filling pressure in the control group. As LV ...
Delayed Presentation of Ventricular Septal Rupture – A Case Report Case Reports
... Without reperfusion therapy VSR usually occurs in the first week. 3,5, 8,9,10 The median time from the onset of symptoms of AMI to rupture is generally 24 hours or less in patients who are receiving thrombolysis.22 ...
... Without reperfusion therapy VSR usually occurs in the first week. 3,5, 8,9,10 The median time from the onset of symptoms of AMI to rupture is generally 24 hours or less in patients who are receiving thrombolysis.22 ...
an Echocardiography Casebook Example
... tissue in the LVOT and balloon dilatation have been attempted but often with unrewarding results or shortlasting effects (13). Betaadrenergic blockers have been used to reduce myocardial oxygen consumption and ventricular arrhythmias in moderate to severe cases (2,13). Prophylactic use of antib ...
... tissue in the LVOT and balloon dilatation have been attempted but often with unrewarding results or shortlasting effects (13). Betaadrenergic blockers have been used to reduce myocardial oxygen consumption and ventricular arrhythmias in moderate to severe cases (2,13). Prophylactic use of antib ...
Fluid dynamics of the heart and its valves.
... (14.15)–(14.16) on the cubic lattice of meshwidth h introduced above. Note that the Navier-Stokes solver does not need to know anything about the complicated time-dependent geometry of the cardiac fibers, since the influence of those fibers on the fluid is completely described by the forcefield F, w ...
... (14.15)–(14.16) on the cubic lattice of meshwidth h introduced above. Note that the Navier-Stokes solver does not need to know anything about the complicated time-dependent geometry of the cardiac fibers, since the influence of those fibers on the fluid is completely described by the forcefield F, w ...
CONOTRUNCAL ANOMALIES A Case Based Review
... The aorta moves upward and to the right instead of pulmonary artery Truncus Arteriosus Truncal Septum fails to develop Double Outlet Right Ventricle Arterial trunk divides but stays over on the right side Tetralogy of Fallot Truncal septum deviates anteriorly ...
... The aorta moves upward and to the right instead of pulmonary artery Truncus Arteriosus Truncal Septum fails to develop Double Outlet Right Ventricle Arterial trunk divides but stays over on the right side Tetralogy of Fallot Truncal septum deviates anteriorly ...
Patent Ductus Arteriosus - Association of Surgical Technologists
... thus permitting the placement of a suture (3-0 silk) through the edges of the pleura. rhe assistant applies a hemostat to the ends of the suture and retracts the pleura. The surgeon carefully dissects between the aorta and pulmonary artery with Metzenbaurn scissors to expose the ductus. A heavy silk ...
... thus permitting the placement of a suture (3-0 silk) through the edges of the pleura. rhe assistant applies a hemostat to the ends of the suture and retracts the pleura. The surgeon carefully dissects between the aorta and pulmonary artery with Metzenbaurn scissors to expose the ductus. A heavy silk ...
Cardiac Mapping Systems
... Another new technique has been developed for real-time, 3D localization of intracardiac catheter electrodes within the chambers of the heart. It works on the principle that when an electrical current is externally applied through the thorax, a voltage drop occurs across the internal organs, includin ...
... Another new technique has been developed for real-time, 3D localization of intracardiac catheter electrodes within the chambers of the heart. It works on the principle that when an electrical current is externally applied through the thorax, a voltage drop occurs across the internal organs, includin ...
Assessment of longitudinal left ventricular systolic function by
... associated with increased cardiovascular risk. Recent studies reported early impairment of circumferential left ventricular function, which may be documented by reduced midwall performance. Hypertensive patients with normal or supranormal standard M-mode systolic measurements may have impaired longi ...
... associated with increased cardiovascular risk. Recent studies reported early impairment of circumferential left ventricular function, which may be documented by reduced midwall performance. Hypertensive patients with normal or supranormal standard M-mode systolic measurements may have impaired longi ...
C
... Dilated cardiomyopathy (DCM) refers to chronic disease of the heart muscle leading to cavity enlargement and reduced systolic function of the left or both ventricles. The diagnosis follows on from the exclusion of specific causes including hypertension, coronary artery disease, rapid supraventricula ...
... Dilated cardiomyopathy (DCM) refers to chronic disease of the heart muscle leading to cavity enlargement and reduced systolic function of the left or both ventricles. The diagnosis follows on from the exclusion of specific causes including hypertension, coronary artery disease, rapid supraventricula ...
Outcomes 2014 - Inova Heart and Vascular Institute
... The first shock came in the middle of the night. Anthony Crupie’s rapid, irregular heartbeat had overwhelmed his pacemaker and his defibrillator had shocked him back to life. When a second shock occurred three hours later, the 76-year-old from Springfield called 911. After treatment in the Inova Fai ...
... The first shock came in the middle of the night. Anthony Crupie’s rapid, irregular heartbeat had overwhelmed his pacemaker and his defibrillator had shocked him back to life. When a second shock occurred three hours later, the 76-year-old from Springfield called 911. After treatment in the Inova Fai ...
YOU CAN LIVE WITH IT! - Cardiovascular Consultants
... with the heart or any of its valves. More information will be needed before it can be labeled a problem. The next step is to schedule one or more routine non-invasive tests designed to identify heart problems with a minimum of risk, inconvenience and discomfort to the patient. When the problem is pa ...
... with the heart or any of its valves. More information will be needed before it can be labeled a problem. The next step is to schedule one or more routine non-invasive tests designed to identify heart problems with a minimum of risk, inconvenience and discomfort to the patient. When the problem is pa ...
Arrhythmias - Cardiac Associates
... with the heart or any of its valves. More information will be needed before it can be labeled a problem. The next step is to schedule one or more routine non-invasive tests designed to identify heart problems with a minimum of risk, inconvenience and discomfort to the patient. When the problem is pa ...
... with the heart or any of its valves. More information will be needed before it can be labeled a problem. The next step is to schedule one or more routine non-invasive tests designed to identify heart problems with a minimum of risk, inconvenience and discomfort to the patient. When the problem is pa ...
Treatment Considerations for a Dual Epidemic of Atrial Fibrillation
... dependent on the production and maintenance of multiple re-entrant wavelets.32,33 HF enhances the production of these multiple wavelets through a combination of direct mechanical effects29 and production of a characteristic neurohormonal/cytokine milieu, which act to alter the atrial structure and i ...
... dependent on the production and maintenance of multiple re-entrant wavelets.32,33 HF enhances the production of these multiple wavelets through a combination of direct mechanical effects29 and production of a characteristic neurohormonal/cytokine milieu, which act to alter the atrial structure and i ...
Looking High and Low for Cardiac Markers
... (TIMI) Study Group at Brigham and Women’s Hospital, Boston. Patients presenting in the ED with chest pain or other symptoms of ACS who receive negative serial troponin results are hardly home free. Dr. Christenson notes that, according to the “classic data” looking at “a pie chart of all the people ...
... (TIMI) Study Group at Brigham and Women’s Hospital, Boston. Patients presenting in the ED with chest pain or other symptoms of ACS who receive negative serial troponin results are hardly home free. Dr. Christenson notes that, according to the “classic data” looking at “a pie chart of all the people ...
Normal cardiac function in mice with supraphysiological - AJP
... segments (as computed from the average pixel color value). Segmentation across unstained sections presented a challenge in some areas of the sample; thus, an average area calculation was performed as well. The ratio of stained/unstained area (0.047) was very similar to the result previously obtained ...
... segments (as computed from the average pixel color value). Segmentation across unstained sections presented a challenge in some areas of the sample; thus, an average area calculation was performed as well. The ratio of stained/unstained area (0.047) was very similar to the result previously obtained ...
Electrocardiography
Electrocardiography (ECG or EKG*) is the process of recording the electrical activity of the heart over a period of time using electrodes placed on a patient's body. These electrodes detect the tiny electrical changes on the skin that arise from the heart muscle depolarizing during each heartbeat.In a conventional 12 lead ECG, ten electrodes are placed on the patient's limbs and on the surface of the chest. The overall magnitude of the heart's electrical potential is then measured from twelve different angles (""leads"") and is recorded over a period of time (usually 10 seconds). In this way, the overall magnitude and direction of the heart's electrical depolarization is captured at each moment throughout the cardiac cycle. The graph of voltage versus time produced by this noninvasive medical procedure is referred to as an electrocardiogram (abbreviated ECG or EKG).During each heartbeat, a healthy heart will have an orderly progression of depolarization that starts with pacemaker cells in the sinoatrial node, spreads out through the atrium, passes through the atrioventricular node down into the bundle of His and into the Purkinje fibers spreading down and to the left throughout the ventricles. This orderly pattern of depolarization gives rise to the characteristic ECG tracing. To the trained clinician, an ECG conveys a large amount of information about the structure of the heart and the function of its electrical conduction system. Among other things, an ECG can be used to measure the rate and rhythm of heartbeats, the size and position of the heart chambers, the presence of any damage to the heart's muscle cells or conduction system, the effects of cardiac drugs, and the function of implanted pacemakers.