syncope evaluation - University Hospitals of Leicester
... If there are features of vasovagal syncope in the history, the paediatrician is happy that there is no neurological pathology, the ECG is normal and the cardiac examination is normal then it is reasonable to accept the diagnosis of vasovagal syncope and to treat appropriately. Checklist before accep ...
... If there are features of vasovagal syncope in the history, the paediatrician is happy that there is no neurological pathology, the ECG is normal and the cardiac examination is normal then it is reasonable to accept the diagnosis of vasovagal syncope and to treat appropriately. Checklist before accep ...
Chapter 8. Cardiorespiratory Responses to Acute Exercise
... • Anticipatory response: HR above RHR just before start of exercise – Vagal tone – Norepinephrine, epinephrine ...
... • Anticipatory response: HR above RHR just before start of exercise – Vagal tone – Norepinephrine, epinephrine ...
Preparatory Activity: The Electrical System of the Heart
... 4. A. Mechanical events of the heart must be preceded by an electrical event. Explain why. Electrical events, i.e. action potentials, trigger muscle contractions by changing membrane permeability to calcium (Ca+2) ions. B. Depolarization and repolarization are the two electrical events of the heart ...
... 4. A. Mechanical events of the heart must be preceded by an electrical event. Explain why. Electrical events, i.e. action potentials, trigger muscle contractions by changing membrane permeability to calcium (Ca+2) ions. B. Depolarization and repolarization are the two electrical events of the heart ...
The Heart - Academic Computer Center
... pulmonary circuit. Which heart valve is the incompetent one? ...
... pulmonary circuit. Which heart valve is the incompetent one? ...
Nerve activates contraction
... Hypotension (low blood pressure) Low systolic (below 110 mm HG) Often associated with illness Hypertension (high blood pressure) High systolic (above 140 mm HG) Can be dangerous if it is chronic ...
... Hypotension (low blood pressure) Low systolic (below 110 mm HG) Often associated with illness Hypertension (high blood pressure) High systolic (above 140 mm HG) Can be dangerous if it is chronic ...
Blood Pumps
... constructed of such materials that they can replace the natural hearts of patients • Implanted in the thoracic cavity and operate via pneumatic and electric connections to an ...
... constructed of such materials that they can replace the natural hearts of patients • Implanted in the thoracic cavity and operate via pneumatic and electric connections to an ...
2- Secondary hypertension
... Renin cleaves an inactive peptide called angiotensinogen, converting it into angiotensin I. Angiotensin I is then converted to angiotensin II by angiotensin-converting enzyme (ACE). Angiotensin II is the major bioactive product of the renin-angiotensin system. Angiotensin II causes : A- vaso ...
... Renin cleaves an inactive peptide called angiotensinogen, converting it into angiotensin I. Angiotensin I is then converted to angiotensin II by angiotensin-converting enzyme (ACE). Angiotensin II is the major bioactive product of the renin-angiotensin system. Angiotensin II causes : A- vaso ...
“ Catheter ablation of VT in patients with a structural heart disease
... “There was consensus among the task force members that catheter ablation for VT should be considered early in the treatment of patients with recurrent VT” ...
... “There was consensus among the task force members that catheter ablation for VT should be considered early in the treatment of patients with recurrent VT” ...
ASD Patient Brochure
... How do the catheter-based procedures for ASD closure work? Physicians have been performing catheter-based procedures in the heart to make diagnoses and treat heart conditions for many years. Catheter-based closure of an ASD involves the placement of a permanent implant, such as the GORE® Septal Occl ...
... How do the catheter-based procedures for ASD closure work? Physicians have been performing catheter-based procedures in the heart to make diagnoses and treat heart conditions for many years. Catheter-based closure of an ASD involves the placement of a permanent implant, such as the GORE® Septal Occl ...
Congenital Heart Defects
... •Because of the increased affinity of fetal hemoglobin for oxygen, PO2 values at a given level of oxygen saturation are often lower in newborns than adults. •An elevated arterial PCO2 value often indicates the presence of pulmonary disease. PCO2 may also be increased in heart failure. •A reduced pH ...
... •Because of the increased affinity of fetal hemoglobin for oxygen, PO2 values at a given level of oxygen saturation are often lower in newborns than adults. •An elevated arterial PCO2 value often indicates the presence of pulmonary disease. PCO2 may also be increased in heart failure. •A reduced pH ...
Print this article
... defects. For example, although a prior study of cyanotic patients had not revealed evidence of clinical stroke in 112 participants [13], another study of 162 patients with cyanotic congenital heart disease reported cerebrovascular events in 13.6% of patients [14]. More recently, a study of 98 patien ...
... defects. For example, although a prior study of cyanotic patients had not revealed evidence of clinical stroke in 112 participants [13], another study of 162 patients with cyanotic congenital heart disease reported cerebrovascular events in 13.6% of patients [14]. More recently, a study of 98 patien ...
Prognostic value of right ventricular myocardial performance index
... Methods: In a longitudinal study, 100 eligible patients who underwent CABG for coronary artery diseases were studied from March 2004 to September 2006. Global RV function and RVMPI changes were measured serially by Doppler echocardiography after surgery. Patients were divided into 2 groups. In group ...
... Methods: In a longitudinal study, 100 eligible patients who underwent CABG for coronary artery diseases were studied from March 2004 to September 2006. Global RV function and RVMPI changes were measured serially by Doppler echocardiography after surgery. Patients were divided into 2 groups. In group ...
Test 2 - Keswick School PE Department.
... 13) The circulatory system has the ability to move blood closer or further away from the skin. Name these to processes and explain when and why they might occur? ...
... 13) The circulatory system has the ability to move blood closer or further away from the skin. Name these to processes and explain when and why they might occur? ...
2016 hands-only cpr fact sheet
... Cardiac arrest – an electrical malfunction in the heart that causes an irregular heartbeat (arrhythmia) and disrupts the flow of blood to the brain, lungs and other organs - is a leading cause of death. Each year, over 350,000 out-of-hospital cardiac arrests occur in the United States. When a pers ...
... Cardiac arrest – an electrical malfunction in the heart that causes an irregular heartbeat (arrhythmia) and disrupts the flow of blood to the brain, lungs and other organs - is a leading cause of death. Each year, over 350,000 out-of-hospital cardiac arrests occur in the United States. When a pers ...
ACRCSP Antithrombotic Management
... Management of antithrombotic therapy prior to elective colonoscopy for screening purposes should follow established guidelines and must be clearly documented in the patient record. The referring physician must clearly indicate whether the patient is on antithrombotic therapy and the reason for use. ...
... Management of antithrombotic therapy prior to elective colonoscopy for screening purposes should follow established guidelines and must be clearly documented in the patient record. The referring physician must clearly indicate whether the patient is on antithrombotic therapy and the reason for use. ...
Circulatory System
... accumulation of fatty deposits, or plaque on the inner lining of the arterial wall. The deposits reduce normal flow of the blood through the artery. cholesterol. ...
... accumulation of fatty deposits, or plaque on the inner lining of the arterial wall. The deposits reduce normal flow of the blood through the artery. cholesterol. ...
Factors determining venous return
... (preload) and the force of ventricular contraction, which enables the heart to eject the ...
... (preload) and the force of ventricular contraction, which enables the heart to eject the ...
9 Cardiovascular System
... • Which type of blood vessel has thinner walls? veins • Which type of blood vessel is more apt to lose its elasticity, leading to a discoloration that can be externally observed? veins What is this condition called? varicose veins ...
... • Which type of blood vessel has thinner walls? veins • Which type of blood vessel is more apt to lose its elasticity, leading to a discoloration that can be externally observed? veins What is this condition called? varicose veins ...
Ventricular Septal Defect Repair Consent and Patient Information
... Right Heart Catheter – after an injection of local anaesthetic, a soft balloon ‘pressure catheter’ is put into the vein in your groin. The tube is carefully passed along until it reaches the heart and then goes up into the blood vessels of the lungs. The pressures in the lungs and heart are recorded ...
... Right Heart Catheter – after an injection of local anaesthetic, a soft balloon ‘pressure catheter’ is put into the vein in your groin. The tube is carefully passed along until it reaches the heart and then goes up into the blood vessels of the lungs. The pressures in the lungs and heart are recorded ...
Blood Vessels
... the lymph nodes of the body. (Think swollen lumps in your throat when you are sick) ...
... the lymph nodes of the body. (Think swollen lumps in your throat when you are sick) ...
heart and seizure stuff SMA 31may2011
... They analyzed heart structure of the SMA mice compared with normal mice, and found that there were significant structural changes occurring in the heart of the SMA mice, along with severely impaired left-ventricular function. SMA mice also had significantly lower heart rates. After examining the und ...
... They analyzed heart structure of the SMA mice compared with normal mice, and found that there were significant structural changes occurring in the heart of the SMA mice, along with severely impaired left-ventricular function. SMA mice also had significantly lower heart rates. After examining the und ...
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.