Print - Circulation Research
... Results were graded as follows: (o) isolated ventricular premature systoles; (6) frequent ventricular premature systoles, but not runs or bigeminal rhythm; (c) short runs of ventricular flutter or fibrillation, and (d) long runs of ventricular flutter or fibrillation. In the final interpretation, re ...
... Results were graded as follows: (o) isolated ventricular premature systoles; (6) frequent ventricular premature systoles, but not runs or bigeminal rhythm; (c) short runs of ventricular flutter or fibrillation, and (d) long runs of ventricular flutter or fibrillation. In the final interpretation, re ...
Flip and See ECG
... appropriate. Readers are advised to check the most current information provided (i) on procedures featured or (ii) by the manufacturer of each product to be administered, to verify the recommended dose or formula, the method and duration of administration, and contraindications. It is the responsibi ...
... appropriate. Readers are advised to check the most current information provided (i) on procedures featured or (ii) by the manufacturer of each product to be administered, to verify the recommended dose or formula, the method and duration of administration, and contraindications. It is the responsibi ...
Model versus non-model based left ventricular
... semiautomatic non-model-based and model-based quantification software (SWP-MRI and SWT-MRI) regarding accuracy and agreement of left ventricular functional indices. Methods: 9 asymmetrically shaped gel phantoms (range: 20-350ml), 24 healthy children (age=11.4±3.3y) and 11 patients with abnormally sh ...
... semiautomatic non-model-based and model-based quantification software (SWP-MRI and SWT-MRI) regarding accuracy and agreement of left ventricular functional indices. Methods: 9 asymmetrically shaped gel phantoms (range: 20-350ml), 24 healthy children (age=11.4±3.3y) and 11 patients with abnormally sh ...
Apex Echocardiography
... We examined 12 patients with ostium primum atrial septal defects. In this lesion the echo dropout is different from that in secundum defects; it is situated lower in the atrial septum, adjacent to and involving the atrioventricular valve junction (fig. 4). Frequently, a bright echo is seen in the at ...
... We examined 12 patients with ostium primum atrial septal defects. In this lesion the echo dropout is different from that in secundum defects; it is situated lower in the atrial septum, adjacent to and involving the atrioventricular valve junction (fig. 4). Frequently, a bright echo is seen in the at ...
Ampulla Cardiomyopathy (Takotsubo Cardiomyopathy)-- - A Review
... the prognosis of this disease is better than acute myocardial infarction, it is very important to ...
... the prognosis of this disease is better than acute myocardial infarction, it is very important to ...
Prevention of stroke and systemic embolization in atrial fibrillation: a
... The Hart meta‑analysis24 also summarized trials of aspirin vs. no treatment; the RRR for all stroke was 19% (95% CI, –1% to 35%), with an ARR of 0.8%/year in primary prevention tri‑ als and 2.5%/year in secondary prevention trials. There were no significant differences in major ex‑ tracranial hemorr ...
... The Hart meta‑analysis24 also summarized trials of aspirin vs. no treatment; the RRR for all stroke was 19% (95% CI, –1% to 35%), with an ARR of 0.8%/year in primary prevention tri‑ als and 2.5%/year in secondary prevention trials. There were no significant differences in major ex‑ tracranial hemorr ...
Left Ventricular Noncompaction
... size, and wall thickness (20). The genetic basis of iLVNC in otherwise normal hearts is unknown. When the trabeculae are prominent in left ventricles with normal size and function, long-term ...
... size, and wall thickness (20). The genetic basis of iLVNC in otherwise normal hearts is unknown. When the trabeculae are prominent in left ventricles with normal size and function, long-term ...
Multi-Lead Medics 12 Lead ECG for Acute Care Providers TABLE
... It would be nice to be able to “see” the “arrow” on the chest of a patient that indicated the direction of travel. Well, we may not be able to see the direction, but we can track it! Using the basic concept of electrical signals from page 8, we can place three leads around the heart. Limb leads, I, ...
... It would be nice to be able to “see” the “arrow” on the chest of a patient that indicated the direction of travel. Well, we may not be able to see the direction, but we can track it! Using the basic concept of electrical signals from page 8, we can place three leads around the heart. Limb leads, I, ...
CLINICAL REVIEW Management of atrial fibrillation
... In rate control, in which the aim of treatment is to slow the heart rate and prevent emboli, atrial fibrillation is tolerated. In rhythm control, the objective is to restore and maintain sinus rhythm. To restore sinus rhythm, pharmacological or electrical cardioversion can be used, always after adeq ...
... In rate control, in which the aim of treatment is to slow the heart rate and prevent emboli, atrial fibrillation is tolerated. In rhythm control, the objective is to restore and maintain sinus rhythm. To restore sinus rhythm, pharmacological or electrical cardioversion can be used, always after adeq ...
Successful Treatment of a Left Main Thrombus by Intracoronary
... field of non-ST-segment elevation ACS have demonstrated the benefits of GP IIb/IIIa receptor inhibitors used as an anticoagulant.24 Several large trials involving patients with unstable angina/ non-ST elevation myocardial infarction (NSTEMI) have shown that the GP IIb/IIIa inhibitors are of substant ...
... field of non-ST-segment elevation ACS have demonstrated the benefits of GP IIb/IIIa receptor inhibitors used as an anticoagulant.24 Several large trials involving patients with unstable angina/ non-ST elevation myocardial infarction (NSTEMI) have shown that the GP IIb/IIIa inhibitors are of substant ...
Pulse pressure as a haemodynamic variable in systolic heart failure
... centres. Details of the inclusion and exclusion criteria have been previously published.10 In brief, 1906 patients with advanced chronic heart failure (NYHA functional class III-IV) were randomised to ibopamine, an oral dopamine agonist, or placebo. All subjects had to have symptoms of heart failure ...
... centres. Details of the inclusion and exclusion criteria have been previously published.10 In brief, 1906 patients with advanced chronic heart failure (NYHA functional class III-IV) were randomised to ibopamine, an oral dopamine agonist, or placebo. All subjects had to have symptoms of heart failure ...
Reservoir and Conduit Function of the Right Atrium - AJP
... function are: 1) reservoir function, storing blood when the tricuspid valve is closed and releasing stored blood when it opens, 2) conduit function, passive blood transfer directly from the coronary and systemic veins to the right ventricle when the tricuspid valve is open, and 3) booster pump funct ...
... function are: 1) reservoir function, storing blood when the tricuspid valve is closed and releasing stored blood when it opens, 2) conduit function, passive blood transfer directly from the coronary and systemic veins to the right ventricle when the tricuspid valve is open, and 3) booster pump funct ...
Usefulness of One-stage Coronary Artery Bypass Grafting on the
... and thoracic operations. The first operation and the postoperative factors may play a role in hastening aneurysm rupture. A single operation avoids repeat anesthesia and prevents two separate convalescence periods. Thus, a combined procedure could be justified providing there is no additional operat ...
... and thoracic operations. The first operation and the postoperative factors may play a role in hastening aneurysm rupture. A single operation avoids repeat anesthesia and prevents two separate convalescence periods. Thus, a combined procedure could be justified providing there is no additional operat ...
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 ...
Accuracy and precision of echocardiography versus right heart
... mean PAP (mPAP)-Q plots and derived calculations were strikingly similar to those previously reported by invasive studies [3,4,6–8]. Furthermore, Doppler echocardiography of the pulmonary circulation and the right heart has been repeatedly shown to be of prognostic relevance in patients with pulmona ...
... mean PAP (mPAP)-Q plots and derived calculations were strikingly similar to those previously reported by invasive studies [3,4,6–8]. Furthermore, Doppler echocardiography of the pulmonary circulation and the right heart has been repeatedly shown to be of prognostic relevance in patients with pulmona ...
Abnormal electrocardiographic findings in athletes
... mitral valve which leads to systolic anterior motion of the anterior leaflet. However, only about 25% of patients with HCM have a murmur from LV outflow tract obstruction during resting examination.12 Symptoms of HCM include chest pain, syncope and exercise intolerance, but for many persons the diseas ...
... mitral valve which leads to systolic anterior motion of the anterior leaflet. However, only about 25% of patients with HCM have a murmur from LV outflow tract obstruction during resting examination.12 Symptoms of HCM include chest pain, syncope and exercise intolerance, but for many persons the diseas ...
Symptom burden of sleep-disordered breathing in mild-to-moderate congestive heart failure patients P.C. Hastings*
... accelerometer that records intensity, amount and duration of movement in all directions. All movement over 0.05g with a maximum sampling frequency of 32 Hz is recorded. Actigraphical data from 1-min epochs were collated and automatic scoring of sleep was performed using a validated algorithm [15]. T ...
... accelerometer that records intensity, amount and duration of movement in all directions. All movement over 0.05g with a maximum sampling frequency of 32 Hz is recorded. Actigraphical data from 1-min epochs were collated and automatic scoring of sleep was performed using a validated algorithm [15]. T ...
International - Congenital Cardiology Today
... quality, angiography has continued to be Obtaining high quality images using 3DRA hampered by its 2-dimensional nature. This has involves some important technical modifications become more and more evident over the past when compared with standard bi-plane decade as it has become commonplace to view ...
... quality, angiography has continued to be Obtaining high quality images using 3DRA hampered by its 2-dimensional nature. This has involves some important technical modifications become more and more evident over the past when compared with standard bi-plane decade as it has become commonplace to view ...
Pressure overload alters stress-strain properties of the developing
... and strain may play an important role. A cardiac model incorporating end-diastolic sarcomere length and early-systolic stretch in feedback showed physiological adaptations (2). Stress-related growth caused by enddiastolic pressure in a model of the chick ventricle at Hamburger-Hamilton (HH) stages 2 ...
... and strain may play an important role. A cardiac model incorporating end-diastolic sarcomere length and early-systolic stretch in feedback showed physiological adaptations (2). Stress-related growth caused by enddiastolic pressure in a model of the chick ventricle at Hamburger-Hamilton (HH) stages 2 ...
Print - Circulation
... hormone or cortisone to patients suffering from acute rheumatic fever with carditis is often associated with dramatic clinical improvement; at times it appears to be life saving. The significance of this clinical response in terms of any true alteration of the long-term course of the illness cannot ...
... hormone or cortisone to patients suffering from acute rheumatic fever with carditis is often associated with dramatic clinical improvement; at times it appears to be life saving. The significance of this clinical response in terms of any true alteration of the long-term course of the illness cannot ...
Two dimensional echocardiographic diagnosis of partial papillary
... fatal myocardial infarctions at necropsy.3 Rupture of the posteromedial papillary muscle is 250% more frequent than rupture of the anterolateral muscle, because of the former's single blood supply from the posterior descending coronary artery.4 Rupture usually occurs during the second or third day a ...
... fatal myocardial infarctions at necropsy.3 Rupture of the posteromedial papillary muscle is 250% more frequent than rupture of the anterolateral muscle, because of the former's single blood supply from the posterior descending coronary artery.4 Rupture usually occurs during the second or third day a ...
Cardiac Alpha1-Adrenergic Receptors
... 3. a1-Adrenergic Receptor Activation of Contraction in Humans . . . . . . . . . . . . . . . . . . . . . . . . . 322 4. Summary of a1-Adrenergic Receptor Activation of Contraction . . . . . . . . . . . . . . . . . . . . . . . . 322 D. a1-Adrenergic Receptors Induce Ischemic Preconditioning . . . . . ...
... 3. a1-Adrenergic Receptor Activation of Contraction in Humans . . . . . . . . . . . . . . . . . . . . . . . . . 322 4. Summary of a1-Adrenergic Receptor Activation of Contraction . . . . . . . . . . . . . . . . . . . . . . . . 322 D. a1-Adrenergic Receptors Induce Ischemic Preconditioning . . . . . ...
Vectorcardiographic Detection of Early Hemodynamic Abnormalities
... circulation were not known to be present and confirms that the presence of a rightward terminal Q R S force of 15 percent or more is a sensitive and specific indicator of abnormal pulmonary hemodynamics. W e have also shown that in patients without marked pulmonary hypertension, vectorcardiographic ...
... circulation were not known to be present and confirms that the presence of a rightward terminal Q R S force of 15 percent or more is a sensitive and specific indicator of abnormal pulmonary hemodynamics. W e have also shown that in patients without marked pulmonary hypertension, vectorcardiographic ...
Underuse of Oral Anticoagulation for Individuals with Atrial
... scores is limited in old and very old individuals. This practice is recommended in European and Canadian AF guidelines. Patient preferences should also be considered.9 Age alone is a single and sufficient factor in favor of initiation of anticoagulation.10 Conversely, candidates for anticoagulation ...
... scores is limited in old and very old individuals. This practice is recommended in European and Canadian AF guidelines. Patient preferences should also be considered.9 Age alone is a single and sufficient factor in favor of initiation of anticoagulation.10 Conversely, candidates for anticoagulation ...
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.