Off-design Considerations of the 50cc Penn State Ventricular Assist
... Phase averaged maps at 12.5% after the onset of diastole, just before the peak inflow, are shown in Fig. 3. The peak inlet jet velocity becomes progressively faster as the heart rate increases: 60 bpm (Fig. 3a) has maximum velocities of approximately 1.8 m/s, 75 bpm (Fig. 3b) has maximum velocities ...
... Phase averaged maps at 12.5% after the onset of diastole, just before the peak inflow, are shown in Fig. 3. The peak inlet jet velocity becomes progressively faster as the heart rate increases: 60 bpm (Fig. 3a) has maximum velocities of approximately 1.8 m/s, 75 bpm (Fig. 3b) has maximum velocities ...
Bystander CPR : The Easy Way to Save a Life
... specialized electrical system; often this results in Ventricular Fibrillation A Sudden Cardiac Arrest victim is unresponsive and not breathing; and requires immediate CPR and AED Someone may not have any warning before having a Sudden cardiac Arrest ...
... specialized electrical system; often this results in Ventricular Fibrillation A Sudden Cardiac Arrest victim is unresponsive and not breathing; and requires immediate CPR and AED Someone may not have any warning before having a Sudden cardiac Arrest ...
Arrhythmia Surgery in Patients With and Without Congenital Heart
... adjacent obstacles or scars, while preserving sinoatrial and atrioventricular nodal function. A patient with a separate hepatic vein entry into the right atrium, for example, will require cryoablation lesions to connect the inferior vena cava os to the coronary sinus os, the hepatic vein os to the c ...
... adjacent obstacles or scars, while preserving sinoatrial and atrioventricular nodal function. A patient with a separate hepatic vein entry into the right atrium, for example, will require cryoablation lesions to connect the inferior vena cava os to the coronary sinus os, the hepatic vein os to the c ...
Tangents and normals
... and on your previous experience with certain mathematical topics this time may vary considerably. ...
... and on your previous experience with certain mathematical topics this time may vary considerably. ...
Methodology of monitoring cardiovascular regulation
... The physiological meaning and thus the possible role of non-baroreflex sequences in evaluation of central command of the CV regulation is still controversial. Oosting et al. 41, include in BRS index calculation all BP sequences, nonbaroreflex sequences as well, regardless the direction of HP changes ...
... The physiological meaning and thus the possible role of non-baroreflex sequences in evaluation of central command of the CV regulation is still controversial. Oosting et al. 41, include in BRS index calculation all BP sequences, nonbaroreflex sequences as well, regardless the direction of HP changes ...
Modification of ventricular repolarization in silent long QT
... Traditionally, lead II of a standard 12-lead ECG has been used for QT interval measurement, because in this lead the vectors of repolarization usually result in a long single wave. This lead has been recommended for measuring the QT interval in LQTS patients, and when not measureable, then a left pr ...
... Traditionally, lead II of a standard 12-lead ECG has been used for QT interval measurement, because in this lead the vectors of repolarization usually result in a long single wave. This lead has been recommended for measuring the QT interval in LQTS patients, and when not measureable, then a left pr ...
Baroreceptor reflex in heart failure
... blunted in rats with coronary ligated heart failure. Representative recording shows renal sympathetic nerve activity (RSNA) decreases during mean arterial pressure (MAP) increasing by intravenous injection of phenylephrine (Fig. 1A) and baroreceptor reflex sensitivity (Gain) significantly decreased ...
... blunted in rats with coronary ligated heart failure. Representative recording shows renal sympathetic nerve activity (RSNA) decreases during mean arterial pressure (MAP) increasing by intravenous injection of phenylephrine (Fig. 1A) and baroreceptor reflex sensitivity (Gain) significantly decreased ...
ICCR Heart neoplasms word (1st edition v1.0) - 23 KB
... Only the more common entities are specifically mentioned in this element, but other types should be entered under "other" (a complete list of histological types of primary tumours of the heart is included below). The neoplastic nature of some mass-forming lesions (lipomatous hypertrophy of the atria ...
... Only the more common entities are specifically mentioned in this element, but other types should be entered under "other" (a complete list of histological types of primary tumours of the heart is included below). The neoplastic nature of some mass-forming lesions (lipomatous hypertrophy of the atria ...
PDF - Circulation: Arrhythmia and Electrophysiology
... stored in digital format (Prucka CardioLab EP System, GE Healthcare, Wis). Nonfluoroscopic electroanatomic mapping was performed using a 3-dimensional mapping system (CARTO, BiosenseWebster, Inc, Diamond Bar, Calif). A sinus rhythm voltage map was performed in all 21 patients. An anatomic low-voltag ...
... stored in digital format (Prucka CardioLab EP System, GE Healthcare, Wis). Nonfluoroscopic electroanatomic mapping was performed using a 3-dimensional mapping system (CARTO, BiosenseWebster, Inc, Diamond Bar, Calif). A sinus rhythm voltage map was performed in all 21 patients. An anatomic low-voltag ...
Characteristics and outcome among patients having out of
... home—was still a strong independent predictor of an adverse outcome. This is in agreement with previous observations16 and suggests that there are other factors which we did not incorporate in the multivariate model that explain at least part of the adverse outcome among these patients. Such factors ...
... home—was still a strong independent predictor of an adverse outcome. This is in agreement with previous observations16 and suggests that there are other factors which we did not incorporate in the multivariate model that explain at least part of the adverse outcome among these patients. Such factors ...
Subaortic Stenosis - Adult Congenital Heart Association
... Subaortic stenosis is the second most common form of left ventricular outflow obstruction. It occurs when the flow of blood from the heart’s pumping chamber or left ventricle is restricted. This obstruction is in the area of the heart under the aortic valve. There are three types of subaortic stenos ...
... Subaortic stenosis is the second most common form of left ventricular outflow obstruction. It occurs when the flow of blood from the heart’s pumping chamber or left ventricle is restricted. This obstruction is in the area of the heart under the aortic valve. There are three types of subaortic stenos ...
Anesthetic Management of Patients with C
... triggers a ventricular depolarization leading to PMT. This problem can be overcome by careful programming of the pacemaker. Programmable Pacemaker This is being used since 1980. It provides flexibility to correct abnormal device behavior and adapt the device to patient’s specific and changing needs. ...
... triggers a ventricular depolarization leading to PMT. This problem can be overcome by careful programming of the pacemaker. Programmable Pacemaker This is being used since 1980. It provides flexibility to correct abnormal device behavior and adapt the device to patient’s specific and changing needs. ...
Chapter 7 Body Systems
... more than 10% from beat to beat. The P-QRS-T pattern is normal, but the interval between groups of complexes (e.g., R-R intervals) varies. ...
... more than 10% from beat to beat. The P-QRS-T pattern is normal, but the interval between groups of complexes (e.g., R-R intervals) varies. ...
Cor Pulmonale
... ECG abnormalities in cor pulmonale reflect the presence of RVH or underlying ...
... ECG abnormalities in cor pulmonale reflect the presence of RVH or underlying ...
Surgical Procedures - The Children`s Heart Foundation
... Anatomically corrective procedures are required to make heart structures normal. Physiologically corrective procedures are required to separate and/or redirect the blue and pink blood circulations. These corrective procedures range from the relatively simple, such as closing or patching a hole or ty ...
... Anatomically corrective procedures are required to make heart structures normal. Physiologically corrective procedures are required to separate and/or redirect the blue and pink blood circulations. These corrective procedures range from the relatively simple, such as closing or patching a hole or ty ...
this PDF file
... of the heart rate collected. Then the movement time of each intensity exercise was calculated. The exercise was scored according to the established evaluation criteria. In this study, we evaluated the exercise load from two aspects: exercise intensity and duration. The maximum heart rate HRmax=220 – ...
... of the heart rate collected. Then the movement time of each intensity exercise was calculated. The exercise was scored according to the established evaluation criteria. In this study, we evaluated the exercise load from two aspects: exercise intensity and duration. The maximum heart rate HRmax=220 – ...
Normal myocardial function in severe right ventricular volume
... by a variety of structural and metabolic abnormalities. Experimental models of pathological left ventricular (LV) volume overloading have shown that, as in humans, if not initially lethal it may be tolerated for an extended period of time, but left heart failure develops eventually if a sustained vo ...
... by a variety of structural and metabolic abnormalities. Experimental models of pathological left ventricular (LV) volume overloading have shown that, as in humans, if not initially lethal it may be tolerated for an extended period of time, but left heart failure develops eventually if a sustained vo ...
The FDA has approved LifeVest products (e.g., LifeVest WCD 2000
... The BIROAD and WEARIT studies were two prospective non-randomized clinical studies performed by the manufacturer and submitted to the FDA for premarket approval.25 Patients aged 18-75 years (n=289) who were at high risk for sudden cardiac death but did not meet eligibility criteria for placement of ...
... The BIROAD and WEARIT studies were two prospective non-randomized clinical studies performed by the manufacturer and submitted to the FDA for premarket approval.25 Patients aged 18-75 years (n=289) who were at high risk for sudden cardiac death but did not meet eligibility criteria for placement of ...
Effects of stress on heart rate complexityâA comparison between
... to predict the future state of a system thus providing an index of randomness or unpredictability of a system (Pincus, 1991). The higher the ApEntr, the smaller the likelihood that runs of patterns which are close remain close on the next incremental comparisons (Ma¨kikallio et al., 1996). A decreas ...
... to predict the future state of a system thus providing an index of randomness or unpredictability of a system (Pincus, 1991). The higher the ApEntr, the smaller the likelihood that runs of patterns which are close remain close on the next incremental comparisons (Ma¨kikallio et al., 1996). A decreas ...
Publications_files/Burggren et al.ActaPhysiol.2013
... some reptiles (varanids and pythons), the muscular ridge is enlarged, resulting in a dual pressure pump during systole (Burggren, 1986; Hicks 1998, Jensen et al. 2010b,c). In these animals, mixing of deoxygenated and oxygenated blood can occur during diastole. Recently, Jensen et al. (2014) standard ...
... some reptiles (varanids and pythons), the muscular ridge is enlarged, resulting in a dual pressure pump during systole (Burggren, 1986; Hicks 1998, Jensen et al. 2010b,c). In these animals, mixing of deoxygenated and oxygenated blood can occur during diastole. Recently, Jensen et al. (2014) standard ...
Diagnosis and Management of Chronic Heart Failure Quick
... treatment for people with CHF who still have symptoms despite standard therapy with ACEIs, ARBs and beta-blockers, if tolerated. Direct sinus node inhibition with ivabradine should be considered for people with CHF who have impaired systolic function and a recent heart failure hospitalisation, and w ...
... treatment for people with CHF who still have symptoms despite standard therapy with ACEIs, ARBs and beta-blockers, if tolerated. Direct sinus node inhibition with ivabradine should be considered for people with CHF who have impaired systolic function and a recent heart failure hospitalisation, and w ...
Full Text-PDF - American Journal of Research Communication
... from the cell cycle. There are certain conditions, for instance, cardiac hypertrophy where adult heart muscle cells undergo DNA synthesis and nuclear mitosis without undergoing cytokinesis which renders majority of adult cardiac myocytes binucleated. In this situation, there is an increase in the ma ...
... from the cell cycle. There are certain conditions, for instance, cardiac hypertrophy where adult heart muscle cells undergo DNA synthesis and nuclear mitosis without undergoing cytokinesis which renders majority of adult cardiac myocytes binucleated. In this situation, there is an increase in the ma ...
New reference values for echocardiographic dimensions of healthy
... Abstract Aim: To renew the echocardiographic reference values of heart dimensions in healthy children. Methods and results: Group 1 consisted of 587 children, of which 361 boys and 226 girls, age from birth to 18 years, body weight over 2500 g, who visited the Pediatric Cardiology outclinic during t ...
... Abstract Aim: To renew the echocardiographic reference values of heart dimensions in healthy children. Methods and results: Group 1 consisted of 587 children, of which 361 boys and 226 girls, age from birth to 18 years, body weight over 2500 g, who visited the Pediatric Cardiology outclinic during t ...
MANAGEMENT OF HEART FAILURE
... Heart failure (HF) is the end stage of most diseases of the heart. The prevalence of HF varies between 3 – 20 per 1000 population, although in persons over the age of 65 years, it could be as high as 100 per 1000 population1. The prognosis for HF is poor, far worse than some of the common cancers2. ...
... Heart failure (HF) is the end stage of most diseases of the heart. The prevalence of HF varies between 3 – 20 per 1000 population, although in persons over the age of 65 years, it could be as high as 100 per 1000 population1. The prognosis for HF is poor, far worse than some of the common cancers2. ...
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.