Delayed diagnosis of an isolated partial anomalous pulmonary
... vein anomaly. We think that our patient have significant shunting despite of single pulmonary vein anomaly because he is symptomatic (fatigue and dyspnoea on physical exertion, palpitations) and has signs of right heart dilatation and volume overload with secondary moderate-to-severe TR. In clinical ...
... vein anomaly. We think that our patient have significant shunting despite of single pulmonary vein anomaly because he is symptomatic (fatigue and dyspnoea on physical exertion, palpitations) and has signs of right heart dilatation and volume overload with secondary moderate-to-severe TR. In clinical ...
ventricular weight in cardiac hypertrophy - Heart
... finding of Thompson and White (1936) that the commonest cause of right ventricular hypertrophy is left ventricular failure, and our figures illustrate the development of right ventricular hypertrophy in such cases before right heart failure occurs. Total Ventricular Weight as a guide to Hypertrophy. ...
... finding of Thompson and White (1936) that the commonest cause of right ventricular hypertrophy is left ventricular failure, and our figures illustrate the development of right ventricular hypertrophy in such cases before right heart failure occurs. Total Ventricular Weight as a guide to Hypertrophy. ...
Premature Ventricular Complex-induced Cardiomyopathy
... Among the identified risk factors for the development of PVC-Induced cardiomyopathy are high-frequency PVCs, longer duration of PVCs, epicardial or broad QRS complex PVCs, interpolated PVCs, male sex, lack of short-term variability of the PVC burden, and PVCs in asymptomatic patients. While no exact ...
... Among the identified risk factors for the development of PVC-Induced cardiomyopathy are high-frequency PVCs, longer duration of PVCs, epicardial or broad QRS complex PVCs, interpolated PVCs, male sex, lack of short-term variability of the PVC burden, and PVCs in asymptomatic patients. While no exact ...
Multiple Hydatid Cysts of Pericardium and Epicardium
... was normal. The patient was given albendazole treatment (20 mg/kg/day) and was submitted to open heart surgery after ten days. Median sternotomy was performed, and multiple cysts surrounding his heart were demonstrated. Enucleation of cysts was planned without cardiopulmonary bypass (CPB) due to the ...
... was normal. The patient was given albendazole treatment (20 mg/kg/day) and was submitted to open heart surgery after ten days. Median sternotomy was performed, and multiple cysts surrounding his heart were demonstrated. Enucleation of cysts was planned without cardiopulmonary bypass (CPB) due to the ...
The Roles of Thiamine in Myocardial Infarction
... (TNF-α) and interleukin-10 (IL-10) are associated with the activation of PARP-1 in circulating mononuclear cells [Yao et al., 2008]. The activation of PARP-1 was demonstrated in circulating leukocytes during MI and was inhibited by the administration of the pharmacologic PARP inhibitor INO-1001 in r ...
... (TNF-α) and interleukin-10 (IL-10) are associated with the activation of PARP-1 in circulating mononuclear cells [Yao et al., 2008]. The activation of PARP-1 was demonstrated in circulating leukocytes during MI and was inhibited by the administration of the pharmacologic PARP inhibitor INO-1001 in r ...
Coronary Arteries From Pulmonary Artery
... associated defect, survival beyond infancy is possible.6 In these situations, the clinical picture of myocardial ischemia and secondary dilated cardiomyopathy may also be overshadowed by the signs and symptoms of the associated cardiovascular defects. In the series described by Heifetz et al,3 84% o ...
... associated defect, survival beyond infancy is possible.6 In these situations, the clinical picture of myocardial ischemia and secondary dilated cardiomyopathy may also be overshadowed by the signs and symptoms of the associated cardiovascular defects. In the series described by Heifetz et al,3 84% o ...
Left Ventricular Noncompaction
... (LV) trabeculae, a thin compacted layer, and deep intertrabecular recesses. Individual variability is extreme, and trabeculae represent a sort of individual “cardioprinting.” By itself, the diagnosis of LVNC does not coincide with that of a “cardiomyopathy” because it can be observed in healthy subj ...
... (LV) trabeculae, a thin compacted layer, and deep intertrabecular recesses. Individual variability is extreme, and trabeculae represent a sort of individual “cardioprinting.” By itself, the diagnosis of LVNC does not coincide with that of a “cardiomyopathy” because it can be observed in healthy subj ...
Development of Z-scores for fetal cardiac dimensions
... period. If appropriate, this was amended at the secondtrimester ultrasound scan, when there was a discrepancy between size and dates. All scans were recorded on S-VHS videotape. To minimize interobserver error, all fetal cardiac measurements were performed offline after review of each study by two f ...
... period. If appropriate, this was amended at the secondtrimester ultrasound scan, when there was a discrepancy between size and dates. All scans were recorded on S-VHS videotape. To minimize interobserver error, all fetal cardiac measurements were performed offline after review of each study by two f ...
City of Miami`s Public Access Defibrillation Program
... Program Overview Over 400,000 people die each year in the US from sudden cardiac arrest. Cardiac arrest usually results from some underlying form of heart disease. Most cardiac arrests are due to abnormal heart rhythms called arrhythmias. Ventricular Fibrillation (VF) is the most common arrhythmia t ...
... Program Overview Over 400,000 people die each year in the US from sudden cardiac arrest. Cardiac arrest usually results from some underlying form of heart disease. Most cardiac arrests are due to abnormal heart rhythms called arrhythmias. Ventricular Fibrillation (VF) is the most common arrhythmia t ...
Complete Article - Journal of Morphological Science
... of the sinuatrial nodal branch (SNA). In this work, we examined the anatomy of this atrial branch using cineangiography. We reviewed the records of 100 cineangiocoronariographies done between October 1991 and November 1992 in the teaching hospital of the Faculty of Medicine of Triângulo Mineiro. The ...
... of the sinuatrial nodal branch (SNA). In this work, we examined the anatomy of this atrial branch using cineangiography. We reviewed the records of 100 cineangiocoronariographies done between October 1991 and November 1992 in the teaching hospital of the Faculty of Medicine of Triângulo Mineiro. The ...
Implantable cardioverter defibrillators and cardiac resynchronisation
... treating people with previous serious ventricular arrhythmia, that is, for people who, without a treatable cause: have survived a cardiac arrest caused by either ventricular tachycardia (VT) or ventricular fibrillation or have spontaneous sustained VT causing syncope or significant haemodynami ...
... treating people with previous serious ventricular arrhythmia, that is, for people who, without a treatable cause: have survived a cardiac arrest caused by either ventricular tachycardia (VT) or ventricular fibrillation or have spontaneous sustained VT causing syncope or significant haemodynami ...
18th Annual Scientific Assembly - Heart Failure Society of America
... AN INCREASED HEART RATE OF ≥70 BPM ...
... AN INCREASED HEART RATE OF ≥70 BPM ...
Anterior and posterior left ventricular sarcomere lengths behave
... the heart was situated with its long axis approximately horizontal and oriented such that the anterior site faced upward and the posterior site was located at approximately four o’clock. If we were to rotate the left ventricle around its long axis, we would then have altered the differential offset ...
... the heart was situated with its long axis approximately horizontal and oriented such that the anterior site faced upward and the posterior site was located at approximately four o’clock. If we were to rotate the left ventricle around its long axis, we would then have altered the differential offset ...
Heart failure in patients with sick sinus syndrome
... the case of SSS without impaired AV conduction.9 In small trials in patients with SSS, DDDR pacing was associated with more atrial fibrillation, increased left atrial diameter, and decreased left ventricular performance as assessed by M-mode and tissue Doppler echocardiography.3,13,14 However, the i ...
... the case of SSS without impaired AV conduction.9 In small trials in patients with SSS, DDDR pacing was associated with more atrial fibrillation, increased left atrial diameter, and decreased left ventricular performance as assessed by M-mode and tissue Doppler echocardiography.3,13,14 However, the i ...
The european infarction study experience
... with a proven sensitivity of 95.9%, a positive predictive accuracy of 98.6% for ventricular extrasystoles and 93.4% sensitivity and a 91.8% positive predictive accuracy for consecutive forms of ventricular extrasystoles (couplets or ventricular tachycardia, or both) (6). In addition, validation of c ...
... with a proven sensitivity of 95.9%, a positive predictive accuracy of 98.6% for ventricular extrasystoles and 93.4% sensitivity and a 91.8% positive predictive accuracy for consecutive forms of ventricular extrasystoles (couplets or ventricular tachycardia, or both) (6). In addition, validation of c ...
Implant and LongTerm Evaluation of Atrial Signal Amplification in a
... 244 days, atrial undersensing was never documented and AmF did not change from implant (3.19 ± 1.82; P = 0.24), also in different body position and breathing conditions. Conclusions: The single-lead ICD system evaluated reliably amplified P-wave amplitudes by a factor of about three, maintaining thi ...
... 244 days, atrial undersensing was never documented and AmF did not change from implant (3.19 ± 1.82; P = 0.24), also in different body position and breathing conditions. Conclusions: The single-lead ICD system evaluated reliably amplified P-wave amplitudes by a factor of about three, maintaining thi ...
Cardiac resynchronization therapy: a meta
... therapy and an implantable defibrillator, in addition to optimal medical therapy, was considered in seven studies that reported mortality.14,19,22,23,25,28,29 Patients with a spectrum of heart failure ranging from NYHA class I to IV were enrolled in these studies. A significant relative risk reducti ...
... therapy and an implantable defibrillator, in addition to optimal medical therapy, was considered in seven studies that reported mortality.14,19,22,23,25,28,29 Patients with a spectrum of heart failure ranging from NYHA class I to IV were enrolled in these studies. A significant relative risk reducti ...
The ultrasound detection of chromosomal anomalies
... and three percent with trisomy 215,6,7,8,9,10, 11. The issue of one or more echogenic foci or whether being on the right side or left-sided is more predictive of aneuploidy has not been settled at the current time. The two images demonstrate an echogenic focus in a normal and fetus with trisomy 21: ...
... and three percent with trisomy 215,6,7,8,9,10, 11. The issue of one or more echogenic foci or whether being on the right side or left-sided is more predictive of aneuploidy has not been settled at the current time. The two images demonstrate an echogenic focus in a normal and fetus with trisomy 21: ...
Echocardiographic Assessment of Ventricular Systolic Function
... can influence patient management and serve as potent predictors of outcomes (Table 4). In patients with chronic stable coronary artery disease, there is a consistent relationship between heart size and outcomes. As heart size increases, so does mortality. The same applies to patients without heart f ...
... can influence patient management and serve as potent predictors of outcomes (Table 4). In patients with chronic stable coronary artery disease, there is a consistent relationship between heart size and outcomes. As heart size increases, so does mortality. The same applies to patients without heart f ...
An adaptive singular spectrum analysis approach to murmur
... The maximum frequency band of these signals is below 300 Hz. Therefore, they have been down-sampled here to 1600 sample/s in order to reduce the computation cost while no information is lost. The most important types of murmur are briefly described here. Aortic regurgitation is the diastolic flow of b ...
... The maximum frequency band of these signals is below 300 Hz. Therefore, they have been down-sampled here to 1600 sample/s in order to reduce the computation cost while no information is lost. The most important types of murmur are briefly described here. Aortic regurgitation is the diastolic flow of b ...
Editorials Original Articles - Circulation: Cardiovascular Imaging
... Copyright © 2017 American Heart Association, Inc. All rights reserved. Print ISSN: 1941-9651. Online ISSN: 1942-0080 ...
... Copyright © 2017 American Heart Association, Inc. All rights reserved. Print ISSN: 1941-9651. Online ISSN: 1942-0080 ...
Volume and Oxygen Consumption in Man
... pointed out that the response of stroke volume to exercise, however, may be variable both in experimental animals and in man. He has also demonstrated that not only the amount, but also the direction of change in cardiac dimensions may vary in the exercising dog, thus indicating that the pattern of ...
... pointed out that the response of stroke volume to exercise, however, may be variable both in experimental animals and in man. He has also demonstrated that not only the amount, but also the direction of change in cardiac dimensions may vary in the exercising dog, thus indicating that the pattern of ...
Vasodilator therapy for acute myocardial infarction and
... decreases and renal function and cardiac function improve. Vasopressin. In many patients with chronic heart failure. a higher level of the antidiuretic hormone. vasopressin, has been observed (64,65). The increase in vasopressin occurs despite cardiac dilation and left atrial stretching, which usual ...
... decreases and renal function and cardiac function improve. Vasopressin. In many patients with chronic heart failure. a higher level of the antidiuretic hormone. vasopressin, has been observed (64,65). The increase in vasopressin occurs despite cardiac dilation and left atrial stretching, which usual ...
Cardiac Hypertrophy: A Review on Pathogenesis and Treatment
... which stimulate protein synthesis. Moreover, ERK signaling plays an important role in the development of the cardiac hypertrophy as it is one of the signaling components of the MAPK. Moreover, the regulatory role of m-TOR in the development and progression of cardiac hypertrophy has been evidenced b ...
... which stimulate protein synthesis. Moreover, ERK signaling plays an important role in the development of the cardiac hypertrophy as it is one of the signaling components of the MAPK. Moreover, the regulatory role of m-TOR in the development and progression of cardiac hypertrophy has been evidenced b ...
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.