The Teleost Heart: A Morphological Approach*
... variability (Santer 1985; Farrell and Jones 1992). Indeed, this assertion can be applied to all fish heart ventricles (Santer 1985). The external shape, the architectural organization, the histology, the coronary distribution, the relative mass, the work dynamics, etc., vary widely between species. ...
... variability (Santer 1985; Farrell and Jones 1992). Indeed, this assertion can be applied to all fish heart ventricles (Santer 1985). The external shape, the architectural organization, the histology, the coronary distribution, the relative mass, the work dynamics, etc., vary widely between species. ...
Hemodynamic Waveforms
... to a high end-diastolic volume. For example, a non-compliant ventricle (one that cannot stretch easily) can generate high pressures during filling, even when the actual volume in the ventricle is low. Ischemia can produce this type of problem, because oxygen is needed to facilitate muscle relaxation ...
... to a high end-diastolic volume. For example, a non-compliant ventricle (one that cannot stretch easily) can generate high pressures during filling, even when the actual volume in the ventricle is low. Ischemia can produce this type of problem, because oxygen is needed to facilitate muscle relaxation ...
The index of suspicion of RV infarction should be particularly high in
... Presence of a significant A wave on pulmonary arterial Doppler throughout the respiratory cycle [17] ...
... Presence of a significant A wave on pulmonary arterial Doppler throughout the respiratory cycle [17] ...
Influence of heart rate on fractional flow reserve, pressure drop
... This study protocol was approved by the Institutional Animal Care and Use Committee at the University of Cincinnati and Cincinnati Children’s Hospital Medical Center. The in vivo study was performed on 11 Yorkshire pigs (44 ⫾ 5 kg), fasted for 24 h and premedicated with intramuscular ketamine (20 mg ...
... This study protocol was approved by the Institutional Animal Care and Use Committee at the University of Cincinnati and Cincinnati Children’s Hospital Medical Center. The in vivo study was performed on 11 Yorkshire pigs (44 ⫾ 5 kg), fasted for 24 h and premedicated with intramuscular ketamine (20 mg ...
Coronary Intervention of An anomalous Left Main Coronary Artery
... Anomalous origin of the left coronary artery from the right sinus of Valsalva is an uncommon malformation, accounting for 0.15% of cases in the series of Angelina, et al. [8] this anomaly is further subdivided in to 4 subtypes depending on the course it follows [1] The left main coronary artery cour ...
... Anomalous origin of the left coronary artery from the right sinus of Valsalva is an uncommon malformation, accounting for 0.15% of cases in the series of Angelina, et al. [8] this anomaly is further subdivided in to 4 subtypes depending on the course it follows [1] The left main coronary artery cour ...
Opposite Predictive Value of Pulse Pressure and
... dysfunction (ejection fraction ≤40%). HF had to be documented by ≥1 of the following: presence of pulmonary rales, chest radiography showing pulmonary venous congestion, or the presence of a third heart sound. Patients were entered into the study at any point from 3 to 14 days after myocardial infar ...
... dysfunction (ejection fraction ≤40%). HF had to be documented by ≥1 of the following: presence of pulmonary rales, chest radiography showing pulmonary venous congestion, or the presence of a third heart sound. Patients were entered into the study at any point from 3 to 14 days after myocardial infar ...
measuring the heart rate
... speed or slope of the treadmill), or until certain changes in heart function are detected in the EKG, at which point the subject is directed to stop. Typical durations of such a test range from 10 to 20 minutes. Conducting a maximal exercise test can require expensive equipment. If you are just begi ...
... speed or slope of the treadmill), or until certain changes in heart function are detected in the EKG, at which point the subject is directed to stop. Typical durations of such a test range from 10 to 20 minutes. Conducting a maximal exercise test can require expensive equipment. If you are just begi ...
A 1D Model of the Arterial Circulation in Mice
... of 1.5% isoflurane and fixed on the imaging table in dorsal position. Physiological function (respiration and heart rate obtained from ECG) was monitored while the animal was positioned on the heated handling table. All measurements were performed by a single, experienced operator. In 5 wild type mi ...
... of 1.5% isoflurane and fixed on the imaging table in dorsal position. Physiological function (respiration and heart rate obtained from ECG) was monitored while the animal was positioned on the heated handling table. All measurements were performed by a single, experienced operator. In 5 wild type mi ...
Hypertension in Dogs and Cats
... method is technically challenging, uncomfortable for patients, and not practical in the clinical setting. As a result, veterinarians rely on indirect methods of estimating blood pressure. Doppler flow detection, oscillometry, and photoplethysmography are the indirect measurement methods that have be ...
... method is technically challenging, uncomfortable for patients, and not practical in the clinical setting. As a result, veterinarians rely on indirect methods of estimating blood pressure. Doppler flow detection, oscillometry, and photoplethysmography are the indirect measurement methods that have be ...
Endothelial Dysfunction
... Beyond endothelial cells in various peripheral organs, endothelial cells in the heart warrant consideration for their role in HFPEF (4). These include endothelial cells of the coronary vessels, but more important of the intramyocardial capillaries and endocardium where endothelial cells directly com ...
... Beyond endothelial cells in various peripheral organs, endothelial cells in the heart warrant consideration for their role in HFPEF (4). These include endothelial cells of the coronary vessels, but more important of the intramyocardial capillaries and endocardium where endothelial cells directly com ...
View Article
... ver since Carpentier1,2 described the surgical treatment of mitral valve prolapse in 1978 and the treatment of different types of mitral valve disease in 1983, mitral valve repair has been a primary goal for cardiac surgeons. Successful mitral valve repair can produce long-term relief of symptoms of ...
... ver since Carpentier1,2 described the surgical treatment of mitral valve prolapse in 1978 and the treatment of different types of mitral valve disease in 1983, mitral valve repair has been a primary goal for cardiac surgeons. Successful mitral valve repair can produce long-term relief of symptoms of ...
Chapter 12 The Circulatory System
... minute Each cycle, about 0.8 seconds long, is subdivided into systole (contraction phase) and diastole (relaxation phase) Stroke volume—volume of blood ejected from one ventricle with each beat Cardiac output—amount of blood that one ventricle can pump each minute; average is about 5 L per minute at ...
... minute Each cycle, about 0.8 seconds long, is subdivided into systole (contraction phase) and diastole (relaxation phase) Stroke volume—volume of blood ejected from one ventricle with each beat Cardiac output—amount of blood that one ventricle can pump each minute; average is about 5 L per minute at ...
Slide 1
... Ans: What are angioplasty, tpa, ventricular reduction (Batista procedure), coronary bypass, transplant, artificial heart, medication? ...
... Ans: What are angioplasty, tpa, ventricular reduction (Batista procedure), coronary bypass, transplant, artificial heart, medication? ...
Prevalence of impaired left ventricular systolic function - Heart
... in a general population aged 50–89 years. Design: In this cross sectional survey, participants filled in a heart failure questionnaire. ECG, blood tests, and echocardiography were performed. Setting: The study population was recruited from general practitioners situated in the same urban area and ex ...
... in a general population aged 50–89 years. Design: In this cross sectional survey, participants filled in a heart failure questionnaire. ECG, blood tests, and echocardiography were performed. Setting: The study population was recruited from general practitioners situated in the same urban area and ex ...
Effect of Cardiac Resynchronization Therapy on Endothelium-Dependent Vasodilatation in the Cutaneous Microvasculature
... assessed by local heating and iontophoresis of acetylcholine, is increased in CHF patients within two months of resynchronisation therapy, whereas the total vasodilatory capacity of smooth muscle, measured as the vascular response to sodium nitroprusside, is unchanged. During recent years, it has be ...
... assessed by local heating and iontophoresis of acetylcholine, is increased in CHF patients within two months of resynchronisation therapy, whereas the total vasodilatory capacity of smooth muscle, measured as the vascular response to sodium nitroprusside, is unchanged. During recent years, it has be ...
Catheter Ablation for Atrial Fibrillation
... will more than likely sleep through most of the procedure following the sedation that was given to you. Once your skin in the groin is numb, two or three tiny punctures will be made with a needle into your vein. This will allow the insertion and movement of the catheters up into the heart under X-ra ...
... will more than likely sleep through most of the procedure following the sedation that was given to you. Once your skin in the groin is numb, two or three tiny punctures will be made with a needle into your vein. This will allow the insertion and movement of the catheters up into the heart under X-ra ...
Diagnosis of Anomalous Coronary Arteries in 64-MDCT
... in angiography [1, 2, 6, 13], and in 0.3% of patients at autopsy [14, 15]. The ratio of coronar y ar ter y anomalies is 15% in our study. But when excluding myocardial bridging, the number decreases to 2.4%. Congenital coronary artery anomalies are the second most common cause of sudden death due to ...
... in angiography [1, 2, 6, 13], and in 0.3% of patients at autopsy [14, 15]. The ratio of coronar y ar ter y anomalies is 15% in our study. But when excluding myocardial bridging, the number decreases to 2.4%. Congenital coronary artery anomalies are the second most common cause of sudden death due to ...
Right Heart Adaptation to Pulmonary Arterial€Hypertension
... also been associated with worse outcomes after acute RHF (28). Although congestive hepatopathy is often observed in patients with RHF and PAH, cirrhosis is a late complication of severe RHF. In patients with worsening hypoxemia and PAH, right-to-left shunting through a patent foramen ovale must be c ...
... also been associated with worse outcomes after acute RHF (28). Although congestive hepatopathy is often observed in patients with RHF and PAH, cirrhosis is a late complication of severe RHF. In patients with worsening hypoxemia and PAH, right-to-left shunting through a patent foramen ovale must be c ...
Right ventricular function in systemic hypertension
... concentric hypertrophy, a major adaptive mechanism that helps to maintain normal LV systolic function. Systemic hypertension, if not treated, leads to heart failure and is associated with an increased risk of coronary artery disease and stroke. At present, the elevations in diastolic or systolic pre ...
... concentric hypertrophy, a major adaptive mechanism that helps to maintain normal LV systolic function. Systemic hypertension, if not treated, leads to heart failure and is associated with an increased risk of coronary artery disease and stroke. At present, the elevations in diastolic or systolic pre ...
The Heart
... lead into networks of capillaries. Notice at the top of Figure 14.1 the color change from red to blue as the blood passes through the capillaries, indicating that oxygen has left the blood and diffused into the tissues. After leaving the capillaries, blood flows into the venous side of the circulati ...
... lead into networks of capillaries. Notice at the top of Figure 14.1 the color change from red to blue as the blood passes through the capillaries, indicating that oxygen has left the blood and diffused into the tissues. After leaving the capillaries, blood flows into the venous side of the circulati ...
1 - UNM Hospitalist Wiki
... features, along with recurrent syncope, age >40 yo, abnormal ECG without evidence of prior MI, unexplained orthostatic hypotension, mild trauma, carotid hypersensitivity 3. Low risk: treatment and discharge home with follow up with PCP ...
... features, along with recurrent syncope, age >40 yo, abnormal ECG without evidence of prior MI, unexplained orthostatic hypotension, mild trauma, carotid hypersensitivity 3. Low risk: treatment and discharge home with follow up with PCP ...
Women and Coronary Artery Disease
... ethnicity, and demographic location can affect the development of heart disease, how it is treated and the quality of care provided. Other such important factors are literacy skills, age, culture, socioeconomic status, religion, disability status, and occupation (Jouria, ...
... ethnicity, and demographic location can affect the development of heart disease, how it is treated and the quality of care provided. Other such important factors are literacy skills, age, culture, socioeconomic status, religion, disability status, and occupation (Jouria, ...
VO2max Concepts
... Figure 10-Relationship between maximal oxygen consumption(˙VO2max) and distance running performance. Regression line represents the running times in a 10-mile test race. From reference 18 . Costill, D. L., H. Thomason, and E. Roberts. Fractional utilization of the aerobic capacity during distance ru ...
... Figure 10-Relationship between maximal oxygen consumption(˙VO2max) and distance running performance. Regression line represents the running times in a 10-mile test race. From reference 18 . Costill, D. L., H. Thomason, and E. Roberts. Fractional utilization of the aerobic capacity during distance ru ...
heart failure - Maury Regional Medical Center
... understand it. It doesn’t mean that your heart has stopped working. With heart failure, the heart continues to work but not as effectively as it once did. It simply means that your heart isn’t pumping blood as well as it should. Approximately 5 million Americans suffer from the effects of Heart Fa ...
... understand it. It doesn’t mean that your heart has stopped working. With heart failure, the heart continues to work but not as effectively as it once did. It simply means that your heart isn’t pumping blood as well as it should. Approximately 5 million Americans suffer from the effects of Heart Fa ...
Dextro-Transposition of the great arteries
dextro-Transposition of the great arteries (d-Transposition of the great arteries, dextro-TGA, or d-TGA), sometimes also referred to as complete transposition of the great arteries, is a birth defect in the large arteries of the heart. The primary arteries (the aorta and the pulmonary artery) are transposed.It is called a cyanotic congenital heart defect (CHD) because the newborn infant turns blue from lack of oxygen.In segmental analysis, this condition is described as ventriculoarterial discordance with atrioventricular concordance, or just ventriculoarterial discordance.d-TGA is often referred to simply as transposition of the great arteries (TGA); however, TGA is a more general term which may also refer to levo-transposition of the great arteries (l-TGA).Another term commonly used to refer to both d-TGA and l-TGA is transposition of the great vessels (TGV), although this term might have an even broader meaning than TGA.