Determinants of Hemodynamic Compromise
... Alto, Calif.) was set at 250 Hz, and the photographic recorder (Honeywell Instruments, Minneapolis, Minn.) was set at 500 Hz. The recording system (manometer, interconnect tubing, catheter, and strip-chart recorder) had a flat frequency response out to 40 Hz. Pressures were recorded simultaneously w ...
... Alto, Calif.) was set at 250 Hz, and the photographic recorder (Honeywell Instruments, Minneapolis, Minn.) was set at 500 Hz. The recording system (manometer, interconnect tubing, catheter, and strip-chart recorder) had a flat frequency response out to 40 Hz. Pressures were recorded simultaneously w ...
Cardiovascular Systems
... – What is being addressed – electrodes, pulse generator, or both? –NOTE: Temporary pacemakers are noted as “separate procedures” ...
... – What is being addressed – electrodes, pulse generator, or both? –NOTE: Temporary pacemakers are noted as “separate procedures” ...
Chain of Survival and EMSC
... The patient’s wife says her husband has a history of substance abuse x 35 years. The patient admits to occasional heroin use. While in the bathroom today, he injected approximately 1 g of cocaine intravenously. ...
... The patient’s wife says her husband has a history of substance abuse x 35 years. The patient admits to occasional heroin use. While in the bathroom today, he injected approximately 1 g of cocaine intravenously. ...
moderated poster session v - European Heart Journal
... assess 1 or 2 motion/deformation components of a truly 3D (moving) structure. We previously developed a methodology to measure all strain (S) components from 3D ultrasound (US) data. While our initial studies were done on simulated data, the aim of the present study was to test the feasibility of th ...
... assess 1 or 2 motion/deformation components of a truly 3D (moving) structure. We previously developed a methodology to measure all strain (S) components from 3D ultrasound (US) data. While our initial studies were done on simulated data, the aim of the present study was to test the feasibility of th ...
Percutaneous Management of Atrial Septal Defects
... horn of the sinus venosus incorporates the superior and inferior vena cava into the right atrium. Any abnormality in the process of septation, incorporation of the sinus venosus into the right atrium, or fusion of the endocardial cushions will generate an ASD. Because the components involved in atri ...
... horn of the sinus venosus incorporates the superior and inferior vena cava into the right atrium. Any abnormality in the process of septation, incorporation of the sinus venosus into the right atrium, or fusion of the endocardial cushions will generate an ASD. Because the components involved in atri ...
Impact of Diet-Induced Weight Loss on the Cardiac Autonomic
... 8:00 AM to 8:00 PM, and 3) night-time period defined as 12:00 AM to 6:00 AM. The separation into daytime and night-time was arbitrary. We have decided to divide the 24-hour Holter recordings into diurnal and nocturnal periods because 1) sudden death occurred often at night, 2) the study design enabl ...
... 8:00 AM to 8:00 PM, and 3) night-time period defined as 12:00 AM to 6:00 AM. The separation into daytime and night-time was arbitrary. We have decided to divide the 24-hour Holter recordings into diurnal and nocturnal periods because 1) sudden death occurred often at night, 2) the study design enabl ...
Clinical and Demographic Characteristics of Patients Presenting
... Diagnosis of heart failure was made clinically using the modified Framingham criteria7, 14, 28. The Framingham criteria for the diagnosis of heart failure has been found to compare favourably to other clinically based criteria used to identify persons with heart failure and left ventricular systolic ...
... Diagnosis of heart failure was made clinically using the modified Framingham criteria7, 14, 28. The Framingham criteria for the diagnosis of heart failure has been found to compare favourably to other clinically based criteria used to identify persons with heart failure and left ventricular systolic ...
NON-VALVULAR ATRIAL FIBRILLATION AND STROKE
... 6. Kopecky SL, Gersh BJ, Mcloon MD et al. The natural history of lone atrial fibrillation. A population-based study over three decades. ...
... 6. Kopecky SL, Gersh BJ, Mcloon MD et al. The natural history of lone atrial fibrillation. A population-based study over three decades. ...
Heart rate control of blood pressure variability in
... BP [3]. To avoid this bias, we studied young subjects with normal cardiac performance, in whom a pacemaker was implanted for congenital impairment of atrioventricular conduction. These paced subjects with fixed ventricular rhythm were compared with age-matched healthy subjects, in whom the physiolog ...
... BP [3]. To avoid this bias, we studied young subjects with normal cardiac performance, in whom a pacemaker was implanted for congenital impairment of atrioventricular conduction. These paced subjects with fixed ventricular rhythm were compared with age-matched healthy subjects, in whom the physiolog ...
Right ventricular dysfunction in advanced heart failure
... at radionuclide ventriculography is an important prognostic indicator in patients with heart failure due to ischemic heart disease or primary dilated cardiomyopathy18-21. Interestingly, the systolic excursion of the tricuspid annular plane turned out to be a significant and independent predictor of ...
... at radionuclide ventriculography is an important prognostic indicator in patients with heart failure due to ischemic heart disease or primary dilated cardiomyopathy18-21. Interestingly, the systolic excursion of the tricuspid annular plane turned out to be a significant and independent predictor of ...
9. Prerequisites course
... material taking into account features of the disease visceral adults (PC-11); - Is able to analyze the results of the main clinical and laboratory studies and assess the functional status of the internal organs of an adult organism with the purpose of timely diagnosis of internal diseases (PC-12); - ...
... material taking into account features of the disease visceral adults (PC-11); - Is able to analyze the results of the main clinical and laboratory studies and assess the functional status of the internal organs of an adult organism with the purpose of timely diagnosis of internal diseases (PC-12); - ...
Atrial fibrillation – etiology and pathogenesis
... The risk for bleeding should be assessed in all patients from AF/AFL group and in the case of ≥ 3 points in HAS-BLED score (hypertension, abnormal kidney/liver function, stroke, bleeding or bleeding tendency in anamnesis, unstable INR, elderly, drugs/alcohol) the treatment should be ordered with spe ...
... The risk for bleeding should be assessed in all patients from AF/AFL group and in the case of ≥ 3 points in HAS-BLED score (hypertension, abnormal kidney/liver function, stroke, bleeding or bleeding tendency in anamnesis, unstable INR, elderly, drugs/alcohol) the treatment should be ordered with spe ...
an account of a seven year experience with
... failure with sinus tachycardia, because there are very few reports on this topic in available medical literature. We analyzed 112 patients with NYHA III/IV congestive heart failure, with coronary artery disease in two thirds. There were 59 males and 53 females, aged 64 ± 9 years, from March 1996. Th ...
... failure with sinus tachycardia, because there are very few reports on this topic in available medical literature. We analyzed 112 patients with NYHA III/IV congestive heart failure, with coronary artery disease in two thirds. There were 59 males and 53 females, aged 64 ± 9 years, from March 1996. Th ...
Review - American Physiological Society
... obesity-associated type 2 diabetes. In addition to pancreatic -cell failure, the Zucker diabetic fatty rat experienced age-related cardiac dysfunction that was characterized by eccentric left ventricular remodeling, increased left ventricular pressure, and decreased systolic performance (9, 20). Th ...
... obesity-associated type 2 diabetes. In addition to pancreatic -cell failure, the Zucker diabetic fatty rat experienced age-related cardiac dysfunction that was characterized by eccentric left ventricular remodeling, increased left ventricular pressure, and decreased systolic performance (9, 20). Th ...
The Second Heart Sound
... the A2OS interval widens . The third heart sound, which forms the S 2 -S2 complex, is lower in frequency than S 2 , is best heard at the apex, is usually not heard at the basal auscultatory area, and occurs 0 .12 to 0 .16 second after A 2 . The pericardial knock is a third heart sound that is slight ...
... the A2OS interval widens . The third heart sound, which forms the S 2 -S2 complex, is lower in frequency than S 2 , is best heard at the apex, is usually not heard at the basal auscultatory area, and occurs 0 .12 to 0 .16 second after A 2 . The pericardial knock is a third heart sound that is slight ...
TEMPERATURE AND FREQUENCY OF CARDIAC CON
... The heart is not at any time particularly easy to see. This difficulty, together with expected variation in the effect of temperature, led us to practice special precautions in obtaining a large number of observations. The frequency of the heart beat is made visible by horizontal light of fair inten ...
... The heart is not at any time particularly easy to see. This difficulty, together with expected variation in the effect of temperature, led us to practice special precautions in obtaining a large number of observations. The frequency of the heart beat is made visible by horizontal light of fair inten ...
Sonographic screening examination of the fetal heart
... The moderator band, a distinct muscle bundle that crosses the right ventricular cavity, is seen near the apex and helps to identify the morphological right ventricle. The left ventricular apex appears smooth and forms the apex of the heart. Both ventricles should appear similar in size and have no e ...
... The moderator band, a distinct muscle bundle that crosses the right ventricular cavity, is seen near the apex and helps to identify the morphological right ventricle. The left ventricular apex appears smooth and forms the apex of the heart. Both ventricles should appear similar in size and have no e ...
Myocardial Perfusion Imaging A Technologist’s Guide Europea n Association of Nuclear Medic
... major surgery (5). The utility of thallium scintigraphy associated with exercise pharmacological stress testing for this purpose has been widely documented. In particular, it has been demonstrated that in patients without prior myocardial infarction the number of reversible thallium defects is the m ...
... major surgery (5). The utility of thallium scintigraphy associated with exercise pharmacological stress testing for this purpose has been widely documented. In particular, it has been demonstrated that in patients without prior myocardial infarction the number of reversible thallium defects is the m ...
Cardiac Magnetic Resonance Imaging and Computed Tomography
... data, and the timing of peak tube current is based on the duration of the R-R interval of the preceding heartbeats. After the study, all imaging data obtained at the same point in the cardiac cycle, across heartbeats, are ‘stitched’ together to create a 3D volume for each desired cardiac phase. Tota ...
... data, and the timing of peak tube current is based on the duration of the R-R interval of the preceding heartbeats. After the study, all imaging data obtained at the same point in the cardiac cycle, across heartbeats, are ‘stitched’ together to create a 3D volume for each desired cardiac phase. Tota ...
Average T-wave alternans activity in ambulatory ECG records
... If an ECG segment (denoted as the kth segment) was suitable for analysis, the TWA amplitude in that segment (denoted as Vk) was computed with a multilead scheme that combines a technique called periodic component analysis with the Laplacian likelihood ratio method for TWA analysis.13 First, the ECG ...
... If an ECG segment (denoted as the kth segment) was suitable for analysis, the TWA amplitude in that segment (denoted as Vk) was computed with a multilead scheme that combines a technique called periodic component analysis with the Laplacian likelihood ratio method for TWA analysis.13 First, the ECG ...
Physical activity and exercise training in preventive cardiology
... patients with coronary artery disease (CAD), after percutaneous coronary intervention (PCI), coronary artery bypass grafting (CABG), and heart failure (HF) patients). [10] ET is a type of PA consisting of planned, structured, and repetitive bodily movement done to improve and/or maintain CRF. [3,4] ...
... patients with coronary artery disease (CAD), after percutaneous coronary intervention (PCI), coronary artery bypass grafting (CABG), and heart failure (HF) patients). [10] ET is a type of PA consisting of planned, structured, and repetitive bodily movement done to improve and/or maintain CRF. [3,4] ...
Andreas Vesalius` Tabulae anatomicae sex (1538) and the
... doubtful, claiming he was unable to see these hypothetic pores: Thus we are compelled to astonishment at the industry of the Creator who causes the blood to sweat from the right ventricle into the left through passages which escape our sight (3). Vesalius, in the second edition of his Fabrica (1555) ...
... doubtful, claiming he was unable to see these hypothetic pores: Thus we are compelled to astonishment at the industry of the Creator who causes the blood to sweat from the right ventricle into the left through passages which escape our sight (3). Vesalius, in the second edition of his Fabrica (1555) ...
Evaluation of Diastolic Dysfunction Using Cardiac MRI
... by selective RF saturation of planes perpendicular to the imaging plane. • These change the magnetization of the protons in the tagged plane compared with the neighboring non-tagged regions, resulting in a difference in signal intensity. • When placed at end diastole and then imaged throughout the ...
... by selective RF saturation of planes perpendicular to the imaging plane. • These change the magnetization of the protons in the tagged plane compared with the neighboring non-tagged regions, resulting in a difference in signal intensity. • When placed at end diastole and then imaged throughout the ...
cardiac structure and function in young athletes
... increase in cardiac output and electrocardiograph (ECG) changes. Stork et al. (1992) used 2-dimensional Doppler echocardiography to evaluate left ventricular filling in 25 endurance adult athletes (aged 31±9 years) of different training levels at rest and during cycling exercise. The results showed ...
... increase in cardiac output and electrocardiograph (ECG) changes. Stork et al. (1992) used 2-dimensional Doppler echocardiography to evaluate left ventricular filling in 25 endurance adult athletes (aged 31±9 years) of different training levels at rest and during cycling exercise. The results showed ...
Antiarrhythmic Effect of Nifekalant on Atrial Tachyarrhythmia in Four
... and prevention of atrial fibrillation or flutter concomitant with heart failure. We found that intravenous nifekalant changed atrial flutter or multifocal atrial tachycardia with a rapid atrial rate to atrial tachycardia of longer cycle length and caused termination in some cases. Pure K channel blo ...
... and prevention of atrial fibrillation or flutter concomitant with heart failure. We found that intravenous nifekalant changed atrial flutter or multifocal atrial tachycardia with a rapid atrial rate to atrial tachycardia of longer cycle length and caused termination in some cases. Pure K channel blo ...
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.