Structural mechanics of the mosquito heart and its function in
... and air bubbles, demonstrated that the heart is a dynamic organ which alternates between pumping hemolymph in anterograde (toward the head) and retrograde (toward the tip of the abdomen) directions. Quantitative assessment of contraction mechanics showed that the dorsal vessels of unmanipulated 5-da ...
... and air bubbles, demonstrated that the heart is a dynamic organ which alternates between pumping hemolymph in anterograde (toward the head) and retrograde (toward the tip of the abdomen) directions. Quantitative assessment of contraction mechanics showed that the dorsal vessels of unmanipulated 5-da ...
Modulation of Cardiac Connexin-43 by Omega
... omega-3, but longer gap junctions were often observed. In addition to the normal pattern, a population of structurally altered cardiomyocytes with injured mitochondria (M) and shorter intercalated disc-related gap junctions (arrow) was observed in Goto-Kakizaki (GK) rat hearts. Apparent preservation ...
... omega-3, but longer gap junctions were often observed. In addition to the normal pattern, a population of structurally altered cardiomyocytes with injured mitochondria (M) and shorter intercalated disc-related gap junctions (arrow) was observed in Goto-Kakizaki (GK) rat hearts. Apparent preservation ...
congenital heart disease
... Infants cyanotic at birth and there is an obligatory ASD/VSD or PDA (uncommon) for survival. Transposition of the great vessels in 30%. PS in 50%. May be assoc with RT sided aortic arch or TAPVR The obligatory R L shunt at atrial level leads to LVH. ...
... Infants cyanotic at birth and there is an obligatory ASD/VSD or PDA (uncommon) for survival. Transposition of the great vessels in 30%. PS in 50%. May be assoc with RT sided aortic arch or TAPVR The obligatory R L shunt at atrial level leads to LVH. ...
Printable PDF - The Gross Physiology of the Cardiovascular System
... To clarify and facilitate understanding of the features peculiar to the heart, it is helpful to compare three major types of pumps. The heart's unique characteristics as a pump are of paramount importance in understanding how the cardiovascular system works. PUMP TYPE #1: This type of pump both suck ...
... To clarify and facilitate understanding of the features peculiar to the heart, it is helpful to compare three major types of pumps. The heart's unique characteristics as a pump are of paramount importance in understanding how the cardiovascular system works. PUMP TYPE #1: This type of pump both suck ...
Acute Effects of Cardiac Glycosides on Aldosterone Secretion in
... complete Na retention. In no animal did the urinary Na excretion exceed 5 niBq. during the 24-hour period prior to adrenolumbar vein cannulation. After induction of anesthesia and adrenolumbar vein cannulation, mean arterial pressures ranged from 98 to 122 mm. IIg, and venous pressures varied from 1 ...
... complete Na retention. In no animal did the urinary Na excretion exceed 5 niBq. during the 24-hour period prior to adrenolumbar vein cannulation. After induction of anesthesia and adrenolumbar vein cannulation, mean arterial pressures ranged from 98 to 122 mm. IIg, and venous pressures varied from 1 ...
congenital heart defects and supraventricular tachycardia in
... contracted during the first 3 months of pregnancy. Many drugs—including isotretinoin, lithium, warfarin, valproic acid, phenytoin, and carbamazepine—taken during pregnancy will increase the risk of CHDs. Diabetes, phenylketonuria, and alcohol consumption during pregnancy also increase the risk of CH ...
... contracted during the first 3 months of pregnancy. Many drugs—including isotretinoin, lithium, warfarin, valproic acid, phenytoin, and carbamazepine—taken during pregnancy will increase the risk of CHDs. Diabetes, phenylketonuria, and alcohol consumption during pregnancy also increase the risk of CH ...
Pulse - Frank`s Hospital Workshop
... The pulse is a decidedly low tech/high yield and antiquated term still useful at the bedside in an age of computational analysis of cardiac performance. Claudius Galen (129AD?) was perhaps the first physiologist to describe the pulse. The pulse is an expedient tactile method of determination of syst ...
... The pulse is a decidedly low tech/high yield and antiquated term still useful at the bedside in an age of computational analysis of cardiac performance. Claudius Galen (129AD?) was perhaps the first physiologist to describe the pulse. The pulse is an expedient tactile method of determination of syst ...
Assessment of inpatient multimodal cardiac imaging
... number (31) from site 3. Overall more SPECT studies were performed by GIM than Cardiology (33 vs. 13). All were classifiable using the AUC for SPECT. There were no rarely appropriate studies and few studies that were classified as may be appropriate (2 at site 2 and 1 at site 3). The appropriateness ...
... number (31) from site 3. Overall more SPECT studies were performed by GIM than Cardiology (33 vs. 13). All were classifiable using the AUC for SPECT. There were no rarely appropriate studies and few studies that were classified as may be appropriate (2 at site 2 and 1 at site 3). The appropriateness ...
Short PR Interval
... Antegrade/retrograde refer to the direction which the electrical impulse travels across the accessory pathway.8 Occasionally, some pathways are only able to carry impulses in the retrograde direction and thus are ‘‘concealed’’ pathways, ie, they are ‘‘silent’’ with normal PR interval and QRS complex ...
... Antegrade/retrograde refer to the direction which the electrical impulse travels across the accessory pathway.8 Occasionally, some pathways are only able to carry impulses in the retrograde direction and thus are ‘‘concealed’’ pathways, ie, they are ‘‘silent’’ with normal PR interval and QRS complex ...
Muscle wasting in young patients with dilated cardiomyopathy
... The inclusion criteria comprised idiopathic, non-ischaemic DCM with a left ventricular ejection fraction (LVEF) ≤40%, age under 55 years, a New York Heart Association (NYHA) class of I to III, and participant willingness to be enrolled into the study. All study participants had to be on guidelinedir ...
... The inclusion criteria comprised idiopathic, non-ischaemic DCM with a left ventricular ejection fraction (LVEF) ≤40%, age under 55 years, a New York Heart Association (NYHA) class of I to III, and participant willingness to be enrolled into the study. All study participants had to be on guidelinedir ...
Umass President`s office inclement weather guidelines
... A Sudden cardiac arrest (SCA), one of the leading causes of death in the United States, strikes over 300,000 victims each year, of which about five percent survive. Sudden cardiac arrest cases are usually due to abnormal heart rhythms called arrhythmias, the vast majority of which are ventricular fi ...
... A Sudden cardiac arrest (SCA), one of the leading causes of death in the United States, strikes over 300,000 victims each year, of which about five percent survive. Sudden cardiac arrest cases are usually due to abnormal heart rhythms called arrhythmias, the vast majority of which are ventricular fi ...
Diastolic Heart Failure: A Concise Review
... ventricular ejection fraction is normal). In some case series the relations between left ventricular pressure and volume on cardiac catheterization do not conform to a classical pattern of diastolic dysfunction [10]. The evidence base for the diagnosis and treatment of diastolic heart failure has la ...
... ventricular ejection fraction is normal). In some case series the relations between left ventricular pressure and volume on cardiac catheterization do not conform to a classical pattern of diastolic dysfunction [10]. The evidence base for the diagnosis and treatment of diastolic heart failure has la ...
Cardiovascular Disease in US Firefighters
... understanding of CVD among firefighters has significantly improved and provides insight into potential preventive strategies. The physiology of cardiovascular arousal and other changes that occur in association with acute firefighting activities have been well-characterized. However, despite the str ...
... understanding of CVD among firefighters has significantly improved and provides insight into potential preventive strategies. The physiology of cardiovascular arousal and other changes that occur in association with acute firefighting activities have been well-characterized. However, despite the str ...
Signs and symptoms of rheumatic fever
... Often the heart valves can not open or shut properly. This means that: - Blood leaks (blood flows backwards through valves which do not close properly) - Blood is blocked (blood can not flow through valves which do not open properly ...
... Often the heart valves can not open or shut properly. This means that: - Blood leaks (blood flows backwards through valves which do not close properly) - Blood is blocked (blood can not flow through valves which do not open properly ...
Helping to Prevent Rheumatic Fever
... Often the heart valves can not open or shut properly. This means that: - Blood leaks (blood flows backwards through valves which do not close properly) - Blood is blocked (blood can not flow through valves which do not open properly ...
... Often the heart valves can not open or shut properly. This means that: - Blood leaks (blood flows backwards through valves which do not close properly) - Blood is blocked (blood can not flow through valves which do not open properly ...
EECP Articles
... improved immediate outcome and increased coronary patency rates after percutaneous coronary intervention,[37] the presence of diabetes is usually associated with worse outcomes[24,10-13] even with the application of these advances. The same relationship exists for patients undergoing coronary artery ...
... improved immediate outcome and increased coronary patency rates after percutaneous coronary intervention,[37] the presence of diabetes is usually associated with worse outcomes[24,10-13] even with the application of these advances. The same relationship exists for patients undergoing coronary artery ...
1 - Unit 5 Thorax Objectives
... Objectives for the Thorax (Chapter 3) Gray’s Anatomy for Students Conceptual Overview When you have completed this section, you should be able to: 1. Describe the general function of the thorax as well as its general divisions. 2. Describe and discuss the components and general organization of the t ...
... Objectives for the Thorax (Chapter 3) Gray’s Anatomy for Students Conceptual Overview When you have completed this section, you should be able to: 1. Describe the general function of the thorax as well as its general divisions. 2. Describe and discuss the components and general organization of the t ...
CL22551554
... A feature is characteristic measurement, transform or structural mapping extraction from input data to represent important patterns of desired phenomena. In our paper, we are taking Physical Activity (PA) as phenomena. Mean of the continuous heart rate via ECG is good candidate for physical activity ...
... A feature is characteristic measurement, transform or structural mapping extraction from input data to represent important patterns of desired phenomena. In our paper, we are taking Physical Activity (PA) as phenomena. Mean of the continuous heart rate via ECG is good candidate for physical activity ...
A GLOBAL LEADER IN ENHANCED ECHOCARDIOGRAPHY
... contrast agents, including sulfur hexafluoride lipid microspheres [see Warnings and Precautions (5.1)]. Most serious reactions occur within 30 minutes of administration [see Warnings and Precautions (5.1)]. • Assess all patients for the presence of any condition that precludes administration [see Co ...
... contrast agents, including sulfur hexafluoride lipid microspheres [see Warnings and Precautions (5.1)]. Most serious reactions occur within 30 minutes of administration [see Warnings and Precautions (5.1)]. • Assess all patients for the presence of any condition that precludes administration [see Co ...
Carvedilol vs metoprolol succinate wide qrs syndrome
... Chronic heart failure (CHF) is a progressive syndrome that results in a poor. . that βblocker use be restricted to carvedilol, bisoprolol, and metoprolol succinate ,. . Dyssynchrony is most readily defined by the presence of QRS widening on the. . for patients with diastolic heart failure vs those w ...
... Chronic heart failure (CHF) is a progressive syndrome that results in a poor. . that βblocker use be restricted to carvedilol, bisoprolol, and metoprolol succinate ,. . Dyssynchrony is most readily defined by the presence of QRS widening on the. . for patients with diastolic heart failure vs those w ...
Cardiac Hypertrophy-Related Pathways in Obesity
... deficits noted in obese humans including respiratory control dysfunction (24, 25, 27), chest wall limitations (12), upper airway narrowing (34), hypertension (2), myocardial hypertrophy (13), cardiac apoptosis (29, 30) and poor exercise capacity (26, 28). Severe obesity in human has long been recogn ...
... deficits noted in obese humans including respiratory control dysfunction (24, 25, 27), chest wall limitations (12), upper airway narrowing (34), hypertension (2), myocardial hypertrophy (13), cardiac apoptosis (29, 30) and poor exercise capacity (26, 28). Severe obesity in human has long been recogn ...
vascular peripheral resistance and compliance
... peak systolic pressure in intact lobsters is approximately 2 kPa. For each artery except the DAA, the volume increased rapidly at lower pressures, but in the range of 1.5–2.0 kPa the curves flattened out. The DAA continued to expand linearly over this range of pressures. The AMAs of three of seven a ...
... peak systolic pressure in intact lobsters is approximately 2 kPa. For each artery except the DAA, the volume increased rapidly at lower pressures, but in the range of 1.5–2.0 kPa the curves flattened out. The DAA continued to expand linearly over this range of pressures. The AMAs of three of seven a ...
Reversible Cardiac Failure During Angina Pectoris
... recorded and a period of supine leg exercise carried out on a bicycle ergometer. This allowed us to observe the patient's response to stress and to estimate the pacing rate that would be required to produce angina. In general, the heart rate required to produce pain with atrial pacing was 20 beats/m ...
... recorded and a period of supine leg exercise carried out on a bicycle ergometer. This allowed us to observe the patient's response to stress and to estimate the pacing rate that would be required to produce angina. In general, the heart rate required to produce pain with atrial pacing was 20 beats/m ...
Inhalants: Not a Fad – a Deadly Fact
... behavior as someone who is drunk. Some of the most common symptoms are loss of balance, giddiness, slurred speech, irritability, nausea and drowsiness. Prolonged use of inhalants can cause disorientation, hallucinations and/or loss of consciousness. ...
... behavior as someone who is drunk. Some of the most common symptoms are loss of balance, giddiness, slurred speech, irritability, nausea and drowsiness. Prolonged use of inhalants can cause disorientation, hallucinations and/or loss of consciousness. ...
Cardiology
... ______ 2. The combining form “angi/o-” refers to a stent inserted in a vein. ______ 3. The suffix “-graphy” is an image or record. ______ 4. Hyperlipidemia refers to elevated levels of lipids in the blood including cholesterol and triglycerides. ______ 5. An aneurysm is an area of dilation and w ...
... ______ 2. The combining form “angi/o-” refers to a stent inserted in a vein. ______ 3. The suffix “-graphy” is an image or record. ______ 4. Hyperlipidemia refers to elevated levels of lipids in the blood including cholesterol and triglycerides. ______ 5. An aneurysm is an area of dilation and w ...
Myocardial infarction
Myocardial infarction (MI) or acute myocardial infarction (AMI), commonly known as a heart attack, occurs when blood flow stops to a part of the heart causing damage to the heart muscle. The most common symptom is chest pain or discomfort which may travel into the shoulder, arm, back, neck, or jaw. Often it is in the center or left side of the chest and lasts for more than a few minutes. The discomfort may occasionally feel like heartburn. Other symptoms may include shortness of breath, nausea, feeling faint, a cold sweat, or feeling tired. About 30% of people have atypical symptoms, with women more likely than men to present atypically. Among those over 75 years old, about 5% have had an MI with little or no history of symptoms. An MI may cause heart failure, an irregular heartbeat, or cardiac arrest.Most MIs occur due to coronary artery disease. Risk factors include high blood pressure, smoking, diabetes, lack of exercise, obesity, high blood cholesterol, poor diet, and excessive alcohol intake, among others. The mechanism of an MI often involves the rupture of an atherosclerotic plaque, leading to complete blockage of a coronary artery. MIs are less commonly caused by coronary artery spasms, which may be due to cocaine, significant emotional stress, and extreme cold, among others. A number of tests are useful to help with diagnosis, including electrocardiograms (ECGs), blood tests, and coronary angiography. An ECG may confirm an ST elevation MI if ST elevation is present. Commonly used blood tests include troponin and less often creatine kinase MB.Aspirin is an appropriate immediate treatment for a suspected MI. Nitroglycerin or opioids may be used to help with chest pain; however, they do not improve overall outcomes. Supplemental oxygen should be used in those with low oxygen levels or shortness of breath. In ST elevation MIs treatments which attempt to restore blood flow to the heart are typically recommended and include angioplasty, where the arteries are pushed open, or thrombolysis, where the blockage is removed using medications. People who have a non-ST elevation myocardial infarction (NSTEMI) are often managed with the blood thinner heparin, with the additional use angioplasty in those at high risk. In people with blockages of multiple coronary arteries and diabetes, bypass surgery (CABG) may be recommended rather than angioplasty. After an MI, lifestyle modifications, along with long term treatment with aspirin, beta blockers, and statins, are typically recommended.Worldwide, more than 3 million people have ST elevation MIs and 4 million have NSTEMIs each year. STEMIs occur about twice as often in men as women. About one million people have an MI each year in the United States. In the developed world the risk of death in those who have had an STEMI is about 10%. Rates of MI for a given age have decreased globally between 1990 and 2010.