HRO_Europace_revisionV4 - Spiral
... Introduction Cardiac resynchronisation therapy (CRT) is an established treatment for patients with heart failure and left bundle branch block (LBBB) or complete heart block. However, despite treatment, morbidity and mortality remain high1. The current assumption is that the predominant mechanism of ...
... Introduction Cardiac resynchronisation therapy (CRT) is an established treatment for patients with heart failure and left bundle branch block (LBBB) or complete heart block. However, despite treatment, morbidity and mortality remain high1. The current assumption is that the predominant mechanism of ...
Effects of Action Potential Duration on the Electrocardiogram in Type
... Abstract. Both diabetes and obesity cause cardiac dysfunction. To separate consequences of geometric changes with obesity from electrophysiological ones, we previously investigated how changes in cardiac and torso geometry affected body-surface electrocardiograms (ECGs). For this study, we character ...
... Abstract. Both diabetes and obesity cause cardiac dysfunction. To separate consequences of geometric changes with obesity from electrophysiological ones, we previously investigated how changes in cardiac and torso geometry affected body-surface electrocardiograms (ECGs). For this study, we character ...
Isorhythmic AV Dissociation
... was applied to the carotid sinuses. This resulted in a significant prolongation of the next R-R interval of 0.30 sec, but produced a lengthening of the corresponding P-P interval of only 0.04 sec. As a consequence, the P wave preceded the QRS by 0.20 sec (presumably sinus rhythm) during the last fou ...
... was applied to the carotid sinuses. This resulted in a significant prolongation of the next R-R interval of 0.30 sec, but produced a lengthening of the corresponding P-P interval of only 0.04 sec. As a consequence, the P wave preceded the QRS by 0.20 sec (presumably sinus rhythm) during the last fou ...
06. Interventions for Clients with Dysrhythmias
... with the PVCs themselves because the decreased stroke volume of the premature beats may decrease peripheral perfusion. Since other rhythms also cause widened QRS complexes, it is essential that the nurse assess whether the premature complexes perfuse. This is done by palpating the carotid, brachial, ...
... with the PVCs themselves because the decreased stroke volume of the premature beats may decrease peripheral perfusion. Since other rhythms also cause widened QRS complexes, it is essential that the nurse assess whether the premature complexes perfuse. This is done by palpating the carotid, brachial, ...
USING BALLISTOCARDIOGRAPHY TO EVALUATE CARDIAC
... Warburton, 2007). Under strenuous exercise conditions the demand on the heart increases considerably. During exercise, there are numerous physiological changes that occur, all of which occur in an integrative and coordinated manner. These changes not only affect the cardiovascular system, but also t ...
... Warburton, 2007). Under strenuous exercise conditions the demand on the heart increases considerably. During exercise, there are numerous physiological changes that occur, all of which occur in an integrative and coordinated manner. These changes not only affect the cardiovascular system, but also t ...
PBMB - MEF Review_submitted_UNMARKED
... In contrast to the apparent regulatory effects on SAN activity, MEC in working myocardium is generally thought of as contributing to cardiac arrhythmias (although physiological roles in working myocardium may exist; see ‘Future Directions’ for a brief discussion). The most common sustained arrhythm ...
... In contrast to the apparent regulatory effects on SAN activity, MEC in working myocardium is generally thought of as contributing to cardiac arrhythmias (although physiological roles in working myocardium may exist; see ‘Future Directions’ for a brief discussion). The most common sustained arrhythm ...
Myocardial oxygen consumption, oxygen supply/demand
... frozen tissue sections were cut on a Slee automated microtomecryostat set at - 350 C in a nitrogen atmosphere. Each section was then transferred to a precooled slide, covered with degassed silicone oil, and rapidly transferred to the microspectrophotometer cold stage flushed with nitrogen gas. Arter ...
... frozen tissue sections were cut on a Slee automated microtomecryostat set at - 350 C in a nitrogen atmosphere. Each section was then transferred to a precooled slide, covered with degassed silicone oil, and rapidly transferred to the microspectrophotometer cold stage flushed with nitrogen gas. Arter ...
Echo Diagnosis of Rheumatic Tricuspid Valve Disease
... less common today.1–4 A reported incidence of RTVd in patients with RMVd was 9.5% (14 of 147) in 1984, from a North American medical center.5 It now appears to be less common. The third world and especially the Indian subcontinent still have a significant prevalence of RTVd, occurring mostly in young ...
... less common today.1–4 A reported incidence of RTVd in patients with RMVd was 9.5% (14 of 147) in 1984, from a North American medical center.5 It now appears to be less common. The third world and especially the Indian subcontinent still have a significant prevalence of RTVd, occurring mostly in young ...
The Role of Sex Hormones in the Cardiovascular System
... In the past the action of androgens on the cardiovascular system has received relatively little attention and authors disagree about possible detrimental or protective effects of testosterone on the heart (Pugh et al., 2000). Later studies showed that cardioprotective effects of testosterone are med ...
... In the past the action of androgens on the cardiovascular system has received relatively little attention and authors disagree about possible detrimental or protective effects of testosterone on the heart (Pugh et al., 2000). Later studies showed that cardioprotective effects of testosterone are med ...
Paper Title (use style: paper title)
... Figure 7 shows the dependence of precision on number of neighbors. The obtained result confirms that k-NN classifier with Cityblock metric shows the best result for almost all number of neighbors and Mahalanobis metric shows much worse result than the other metrics. Figure 8 shows the dependence of ...
... Figure 7 shows the dependence of precision on number of neighbors. The obtained result confirms that k-NN classifier with Cityblock metric shows the best result for almost all number of neighbors and Mahalanobis metric shows much worse result than the other metrics. Figure 8 shows the dependence of ...
prevalence of asymptomatic left ventricular diastolic dysfunction in
... Objective: To determine the frequency of asymptomatic left ventricular diastolic dysfunction in normotesive type 2 diabetic patients. Material and Methods: This descriptive case series study was conducted on 80 normotesive Type 2 diabetic patients at Cardiology Department, PGMI Lady Reading Hospital ...
... Objective: To determine the frequency of asymptomatic left ventricular diastolic dysfunction in normotesive type 2 diabetic patients. Material and Methods: This descriptive case series study was conducted on 80 normotesive Type 2 diabetic patients at Cardiology Department, PGMI Lady Reading Hospital ...
... context of valvular heart disease [24]. The same increase in Ppa induced by passive leg rising shortens AT in patients with pulmonary hypertension due to COPD, but increases AT in patients with a normal Ppa [30]. This is in keeping with the observation by KITABATAKE et al. [20] on a patient with pul ...
Medic One/Emergency Medical Services
... • The heart must fill adequately between compressions • negative pressure created as the chest expands returns more blood to the heart, so the next chest compression is more effective! ...
... • The heart must fill adequately between compressions • negative pressure created as the chest expands returns more blood to the heart, so the next chest compression is more effective! ...
Influence of ejection fraction on outcomes and efficacy of
... NYHA functional class did not differ by EF. Patients with higher EF were more likely to have reduced diastolic blood pressure, although systolic blood pressure did not differ. Patients with higher ejection fraction were less likely to be on angiotensin converting enzyme inhibitor/angiotensin recepto ...
... NYHA functional class did not differ by EF. Patients with higher EF were more likely to have reduced diastolic blood pressure, although systolic blood pressure did not differ. Patients with higher ejection fraction were less likely to be on angiotensin converting enzyme inhibitor/angiotensin recepto ...
Reproducibility of Blood Pressure and Inter-Beat
... atherosclerosis (Sander et al. 1996), cardiac hypertrophy (Cymerys et al. 2002), increased intima-media thickness (Zakopoulos et al. 2005), and for the end-organ damage (Parati et al. 1987). Mancia et al. (1983) also showed that hypertensive subjects have increased BPV in comparison with normotensiv ...
... atherosclerosis (Sander et al. 1996), cardiac hypertrophy (Cymerys et al. 2002), increased intima-media thickness (Zakopoulos et al. 2005), and for the end-organ damage (Parati et al. 1987). Mancia et al. (1983) also showed that hypertensive subjects have increased BPV in comparison with normotensiv ...
Brain natriuretic peptide and optimal management of heart
... have reduced BNP concentrations while others have sustained BNP concentration. The reduction of BNP may precede the alteration of ventricular sizes and therefore sensitively indicate an effective therapeutic strategy. The concept of BNP guided therapy is based on the two randomized trials. Whether t ...
... have reduced BNP concentrations while others have sustained BNP concentration. The reduction of BNP may precede the alteration of ventricular sizes and therefore sensitively indicate an effective therapeutic strategy. The concept of BNP guided therapy is based on the two randomized trials. Whether t ...
Cardiac Resynchronization Therapy in 2015
... An important subset of HF patients are those with atrial fibrillation (AF), who make up 25%–30% of HF patients, and are overrepresented among HF patients with more advanced symptoms. In HF patients with AF, CRT appears to be less effective than in patients in sinus rhythm, which may be due to compet ...
... An important subset of HF patients are those with atrial fibrillation (AF), who make up 25%–30% of HF patients, and are overrepresented among HF patients with more advanced symptoms. In HF patients with AF, CRT appears to be less effective than in patients in sinus rhythm, which may be due to compet ...
Soy - UC Davis Department of Nutrition
... before any firm conclusions can be made. How much soy is recommended? According to the American Heart Association and the US Food and Drug Administration (FDA), soy products have beneficial nutrient profiles and daily consumption of 25 grams or more of soy protein with isoflavones can help lower cho ...
... before any firm conclusions can be made. How much soy is recommended? According to the American Heart Association and the US Food and Drug Administration (FDA), soy products have beneficial nutrient profiles and daily consumption of 25 grams or more of soy protein with isoflavones can help lower cho ...
The european infarction study experience
... ducted supraventricular Or fusion beats, the lack of a pre• ceding P wave and sufficient difference in shape and prematurity of the particular beat were considered. Arrhyth• mias were analyzed in segments of hourly intervals of ar• tifact-free time as detected by the analyzing system. The complete r ...
... ducted supraventricular Or fusion beats, the lack of a pre• ceding P wave and sufficient difference in shape and prematurity of the particular beat were considered. Arrhyth• mias were analyzed in segments of hourly intervals of ar• tifact-free time as detected by the analyzing system. The complete r ...
Exenatide infusion decreases atrial natriuretic peptide levels by
... levels were not directly associated with exenatide levels, but were related to the action of the decreased filling pressure during exenatide infusion. In our previous study, we demonstrated that exenatide infusion increased cardiac index as a result of chronotropy, without any changes in stroke volu ...
... levels were not directly associated with exenatide levels, but were related to the action of the decreased filling pressure during exenatide infusion. In our previous study, we demonstrated that exenatide infusion increased cardiac index as a result of chronotropy, without any changes in stroke volu ...
Isolated Non-Compacted Right Ventricular Myocardium with Severe
... demonstrates blood flow through these deep recesses in continuity with the ventricular cavity. Isolated ventricular myocardium is diagnosed when the above criteria are satisfied and coexisting cardiac lesions, such as semilunar valve obstruction and coronary artery anomalies, are excluded. [2] Our p ...
... demonstrates blood flow through these deep recesses in continuity with the ventricular cavity. Isolated ventricular myocardium is diagnosed when the above criteria are satisfied and coexisting cardiac lesions, such as semilunar valve obstruction and coronary artery anomalies, are excluded. [2] Our p ...
Rheumatic Heart Disease Severity, Progression and Outcomes: A
... evaluated for 591 patients. Of 96 (16.2%) patients with severe RHD at diagnosis, 50% had proceeded to valve surgery by 2 years, and 10% were dead within 6 years. Of those diagnosed with moderate RHD, there was a similar chance of disease regression or progression over time. Patients with mild RHD at ...
... evaluated for 591 patients. Of 96 (16.2%) patients with severe RHD at diagnosis, 50% had proceeded to valve surgery by 2 years, and 10% were dead within 6 years. Of those diagnosed with moderate RHD, there was a similar chance of disease regression or progression over time. Patients with mild RHD at ...
- The Journal of Thoracic and Cardiovascular Surgery
... with return to normal function has not demonstrated adverse outcomes, and longer total ischemic time may be more acceptable than previously thought.24-26 The impact of left ventricular hypertrophy on donor quality is also facing scrutiny, and may be less restrictive than historically assumed.27 Alth ...
... with return to normal function has not demonstrated adverse outcomes, and longer total ischemic time may be more acceptable than previously thought.24-26 The impact of left ventricular hypertrophy on donor quality is also facing scrutiny, and may be less restrictive than historically assumed.27 Alth ...
Evidence Based Guidelines for Exercise and Chronic Heart Failure
... Chronic heart failure (CHF) is characterized by an intolerance to exercise, with this group of patients often experiencing early fatigue and shortness of breath. Such symptoms impact upon one’s ability to perform activities of daily living, thus significantly contributing to reduced participation an ...
... Chronic heart failure (CHF) is characterized by an intolerance to exercise, with this group of patients often experiencing early fatigue and shortness of breath. Such symptoms impact upon one’s ability to perform activities of daily living, thus significantly contributing to reduced participation an ...
The Aging Heart - UMass Medical School
... Advancing Geriatrics Education (AGE): A UMMS initiative funded by the Donald W. Reynolds Foundation ...
... Advancing Geriatrics Education (AGE): A UMMS initiative funded by the Donald W. Reynolds Foundation ...
Coronary artery disease
Coronary artery disease (CAD), also known as ischemic heart disease (IHD), atherosclerotic heart disease, atherosclerotic cardiovascular disease, and coronary heart disease, is a group of diseases that includes: stable angina, unstable angina, myocardial infarction, and sudden coronary death. It is within the group of cardiovascular diseases of which it is the most common type. A common symptom is chest pain or discomfort which may travel into the shoulder, arm, back, neck, or jaw. Occasionally it may feel like heartburn. Usually symptoms occur with exercise or emotional stress, last less than a few minutes, and gets better with rest. Shortness of breath may also occur and sometimes no symptoms are present. The first sign is occasionally a heart attack. Other complications include heart failure or an irregular heartbeat.Risk factors include: high blood pressure, smoking, diabetes, lack of exercise, obesity, high blood cholesterol, poor diet, and excessive alcohol, among others. Other risks include depression. The underlying mechanism involves atherosclerosis of the arteries of the heart. A number of tests may help with diagnoses including: electrocardiogram, cardiac stress testing, coronary computed tomographic angiography, and coronary angiogram, among others.Prevention is by eating a healthy diet, regular exercise, maintaining a healthy weight and not smoking. Sometimes medication for diabetes, high cholesterol, or high blood pressure are also used. There is limited evidence for screening people who are at low risk and do not have symptoms. Treatment involves the same measures as prevention. Additional medications such as antiplatelets including aspirin, beta blockers, or nitroglycerin may be recommended. Procedures such as percutaneous coronary intervention (PCI) or coronary artery bypass surgery (CABG) may be used in severe disease. In those with stable CAD it is unclear if PCI or CABG in addition to the other treatments improve life expectancy or decreases heart attack risk.In 2013 CAD was the most common cause of death globally, resulting in 8.14 million deaths (16.8%) up from 5.74 million deaths (12%) in 1990. The risk of death from CAD for a given age has decreased between 1980 and 2010 especially in the developed world. The number of cases of CAD for a given age has also decreased between 1990 and 2010. In the United States in 2010 about 20% of those over 65 had CAD, while it was present in 7% of those 45 to 64, and 1.3% of those 18 to 45. Rates are higher among men than women of a given age.