Embryonic Heart Rate as a Prognostic Factor for
... study imply that measurement of the embryonic heart rate before 7 weeks’ gestation may be an early marker for chromosomal abnormalities among offspring with subsequent positive combined or triple screening results. Studies of the heart rate in chromosomally abnormal fetuses have reported conflicting ...
... study imply that measurement of the embryonic heart rate before 7 weeks’ gestation may be an early marker for chromosomal abnormalities among offspring with subsequent positive combined or triple screening results. Studies of the heart rate in chromosomally abnormal fetuses have reported conflicting ...
Artificial Pacemakers - McMaster University > ECE
... Autorhythmic fibers are specialized cardiac muscle cells that cause an inherent and rhythmical electrical activity in the heart Autorhythmic fibers are self excitable- they simulate contraction without a requisite electrical impulse from the central nervous system A single cardiac muscle cell can co ...
... Autorhythmic fibers are specialized cardiac muscle cells that cause an inherent and rhythmical electrical activity in the heart Autorhythmic fibers are self excitable- they simulate contraction without a requisite electrical impulse from the central nervous system A single cardiac muscle cell can co ...
To Article - BSP - Biological Signal Processing Ltd.
... Patients with MPI ischemia were characterized by a reduction in HFQRS intensity during the exercise test. Fig. 2 presents an example of the HFQRS intensity calculated for all 12 leads in a patient with positive MPI. In this patient, HFQRS intensity decreased in all 12 leads during exercise and retur ...
... Patients with MPI ischemia were characterized by a reduction in HFQRS intensity during the exercise test. Fig. 2 presents an example of the HFQRS intensity calculated for all 12 leads in a patient with positive MPI. In this patient, HFQRS intensity decreased in all 12 leads during exercise and retur ...
THE HEART AND CIRCULATION Liv Bargman THE
... A webcam is an ideal way to get started with stop motion animation at low cost. There is no need to worry about setting camera settings. Just plug and play! Some new webcams now shoot in HD and even have manual focus rings on the front, perfect for animation. For a high quality image with the abilit ...
... A webcam is an ideal way to get started with stop motion animation at low cost. There is no need to worry about setting camera settings. Just plug and play! Some new webcams now shoot in HD and even have manual focus rings on the front, perfect for animation. For a high quality image with the abilit ...
The Effect of Different Roller Coasters on Human Heart Recovery
... allow examination to determine whether different roller coasters have a significant effect on the heart rate recovery. The researchers hypothesize that there will be a significant difference between the average heart rate recovery of each gender and the two specific rides. This experiment may have p ...
... allow examination to determine whether different roller coasters have a significant effect on the heart rate recovery. The researchers hypothesize that there will be a significant difference between the average heart rate recovery of each gender and the two specific rides. This experiment may have p ...
Pacemakers and AICDs: Interrogation Reports and Interpretation of
... Telling Signs With EKG When physicians review EKGs, a few telling signs may indicate that the patient has had a pacemaker implanted. In atrial pacing, a pacemaker spike is followed by a P wave with morphology dependent upon the location of the atrial pacer lead. The QRS complex appears as if in sinu ...
... Telling Signs With EKG When physicians review EKGs, a few telling signs may indicate that the patient has had a pacemaker implanted. In atrial pacing, a pacemaker spike is followed by a P wave with morphology dependent upon the location of the atrial pacer lead. The QRS complex appears as if in sinu ...
delineation of privileges – thoracic/cardiovascular surgery
... which categorically require documentation of additional training or significant experience, such as high risk procedures or new procedures. Volume criteria (in parenthesis) may be applicable. NOTE: Procedures designated with a cross (+) are presently granted solely to physicians that are part of an ...
... which categorically require documentation of additional training or significant experience, such as high risk procedures or new procedures. Volume criteria (in parenthesis) may be applicable. NOTE: Procedures designated with a cross (+) are presently granted solely to physicians that are part of an ...
biomaterials ent 311/4
... As an example: artificial heart valve is required to open and close on an average once every second (valves open and close 30 million times per year). The biomaterial chosen must be such that the valve is durable and will not fail under fatigue stress after implantation in patient. ...
... As an example: artificial heart valve is required to open and close on an average once every second (valves open and close 30 million times per year). The biomaterial chosen must be such that the valve is durable and will not fail under fatigue stress after implantation in patient. ...
Recovery Heart Rate Response in Sedentary and Physically Active
... primarily to an increase in the parasympathetic activity with a minor decrease in sympathetic discharge[13, 14]. The physically active group showed a significantly faster decrease in heart rate to pre exercise value than the age matched sedentary controls. HR recovery after exercise depends on sever ...
... primarily to an increase in the parasympathetic activity with a minor decrease in sympathetic discharge[13, 14]. The physically active group showed a significantly faster decrease in heart rate to pre exercise value than the age matched sedentary controls. HR recovery after exercise depends on sever ...
Hawthorn (Crataegus laevigata, C. oxyacantha, C. monogyna, C
... hawthorn may synergistically improve performance of the damaged myocardium, and further, may prevent or reduce symptoms of coronary artery disease. Numerous well-conducted human clinical trials have demonstrated safety and efficacy of hawthorn leaf and flower in New York Heart Association (NYHA) Cla ...
... hawthorn may synergistically improve performance of the damaged myocardium, and further, may prevent or reduce symptoms of coronary artery disease. Numerous well-conducted human clinical trials have demonstrated safety and efficacy of hawthorn leaf and flower in New York Heart Association (NYHA) Cla ...
Correlation Between Pediatric Open Heart Surgery Outcomes and
... venous oxygen saturation values were measured via blood samples simultaneously obtained in 6-hr intervals for a total of 24-hr during postoperative period at hours 0, 6, 12, 18, and 24. Postoperative ventilation support (intubation period) and cardiovascular support were also obtained from the hospi ...
... venous oxygen saturation values were measured via blood samples simultaneously obtained in 6-hr intervals for a total of 24-hr during postoperative period at hours 0, 6, 12, 18, and 24. Postoperative ventilation support (intubation period) and cardiovascular support were also obtained from the hospi ...
What Happens to the Human Heart in Space?
... mechanics of human breathing on Earth by measuring specific parameters in weightlessness, as well as providing valuable data on cardiovascular adaptation to microgravity. One of the ARMS experiments, from Denmark, titled Does weightlessness produce peripheral vasodilatation?, tested a hypothesis tha ...
... mechanics of human breathing on Earth by measuring specific parameters in weightlessness, as well as providing valuable data on cardiovascular adaptation to microgravity. One of the ARMS experiments, from Denmark, titled Does weightlessness produce peripheral vasodilatation?, tested a hypothesis tha ...
cardiac cycle - The department of cardiology, Calicut medical college
... 10%-15% of LV filling at rest, however, At higher heart rates, atrial contraction may account for up to 40% of LV filling referred to as the "atrial kick” The atrial contribution to ventricular filling varies inversely with duration of ventricular diastole and directly with atrial contractility ...
... 10%-15% of LV filling at rest, however, At higher heart rates, atrial contraction may account for up to 40% of LV filling referred to as the "atrial kick” The atrial contribution to ventricular filling varies inversely with duration of ventricular diastole and directly with atrial contractility ...
Clinical Application of Echocardiography
... with mild valvular regurgitation having stable physical signs and normal LV size and function. 2. Routine repetition of echocardiography in past users of anorectic drugs with normal studies or known trivial valvular abnormalities. ...
... with mild valvular regurgitation having stable physical signs and normal LV size and function. 2. Routine repetition of echocardiography in past users of anorectic drugs with normal studies or known trivial valvular abnormalities. ...
ECG interpretations
... Etiology: One or more ventricular cells are depolarizing and the impulses are abnormally conducting through the ventricles. ...
... Etiology: One or more ventricular cells are depolarizing and the impulses are abnormally conducting through the ventricles. ...
PDF Article
... at the University of North Carolina, Chapel Hill, where they were stored with demographic and clinical information that included age, gender, New York Heart Association (NYHA) classification, heart rate and systemic blood pressure. Follow-up data included all-cause mortality, deaths from CV causes a ...
... at the University of North Carolina, Chapel Hill, where they were stored with demographic and clinical information that included age, gender, New York Heart Association (NYHA) classification, heart rate and systemic blood pressure. Follow-up data included all-cause mortality, deaths from CV causes a ...
Surgical Considerations for Patients with Heterotaxy
... heterotaxy. In 2007 Supplement to Cardiology in the Young: Controversies and Challenges Facing Paediatric Cardiovascular Practitioners and their Patients, Anderson RH, Jacobs JP, and Wernovsky G, editors. Cardiology in the Young. 2007 Sept; 17(Suppl 2):1–28, doi: 10.1017/S1047951107001138.. ...
... heterotaxy. In 2007 Supplement to Cardiology in the Young: Controversies and Challenges Facing Paediatric Cardiovascular Practitioners and their Patients, Anderson RH, Jacobs JP, and Wernovsky G, editors. Cardiology in the Young. 2007 Sept; 17(Suppl 2):1–28, doi: 10.1017/S1047951107001138.. ...
PROBLEM SET 3 SOLUTIONS February 26, 2004
... a phase 0 amplitude of 100 mV and a rise-time of 1 msec. • The velocity of propagation is 100 cm/sec. • The torso radius is 10 cm and its conductivity is 1 × 10−3 mho/cm. The peak-to-peak amplitude would be twice the maximum projection of the heart vector on ...
... a phase 0 amplitude of 100 mV and a rise-time of 1 msec. • The velocity of propagation is 100 cm/sec. • The torso radius is 10 cm and its conductivity is 1 × 10−3 mho/cm. The peak-to-peak amplitude would be twice the maximum projection of the heart vector on ...
Electrocardiography ECG A pen recorded paper trace
... Is the rhythm regular or irregular Evaluate for normal relationship between P wave and QRS complex Is the rhythm regularly irregular ...
... Is the rhythm regular or irregular Evaluate for normal relationship between P wave and QRS complex Is the rhythm regularly irregular ...
Heart Sounds
... To explore why an ASD results in a fixed split S2, we must considered the altered cardiac hemodynamics present in this situation which result in a fixed delay in PV closure. During inspiration, as usual there is an increase in venous return to the right side of the heart and thus increased flow thro ...
... To explore why an ASD results in a fixed split S2, we must considered the altered cardiac hemodynamics present in this situation which result in a fixed delay in PV closure. During inspiration, as usual there is an increase in venous return to the right side of the heart and thus increased flow thro ...
National Heart Foundation of Australia - 2017-18 Pre
... There is a workforce crisis facing cardiovascular disease research. Static investment into the National Health and Medical Research Council (NHMRC) over the past five years has resulted in a decline in the NHMRC-funded workforce that endangers the capacity of Australia’s health and medical research ...
... There is a workforce crisis facing cardiovascular disease research. Static investment into the National Health and Medical Research Council (NHMRC) over the past five years has resulted in a decline in the NHMRC-funded workforce that endangers the capacity of Australia’s health and medical research ...
Antithrombotic therapy for primary and seconda-
... under fifty years, 5% of those aged over sixty-five, and 10% of people aged over eighty. AF itself is an independent risk factor for CVA, and for older patients it is the most important cause of cerebral infarction and the most important independent risk factor for the first event.2,3,4 In general, ...
... under fifty years, 5% of those aged over sixty-five, and 10% of people aged over eighty. AF itself is an independent risk factor for CVA, and for older patients it is the most important cause of cerebral infarction and the most important independent risk factor for the first event.2,3,4 In general, ...
Correlation Between Pediatric Open Heart Surgery
... venous oxygen saturation values were measured via blood samples simultaneously obtained in 6-hr intervals for a total of 24-hr during postoperative period at hours 0, 6, 12, 18, and 24. Postoperative ventilation support (intubation period) and cardiovascular support were also obtained from the hospi ...
... venous oxygen saturation values were measured via blood samples simultaneously obtained in 6-hr intervals for a total of 24-hr during postoperative period at hours 0, 6, 12, 18, and 24. Postoperative ventilation support (intubation period) and cardiovascular support were also obtained from the hospi ...
Sudden Cardiac Death - Hellenic Journal of Cardiology
... Introduction: The identification of high-risk patients in hypertrophic cardiomyopathy (HCM) is still a challenge. The classical clinical risk factors for sudden death have been reported by studies coming from referral HCM cohorts. So far, other studies of community-based HCM populations have not man ...
... Introduction: The identification of high-risk patients in hypertrophic cardiomyopathy (HCM) is still a challenge. The classical clinical risk factors for sudden death have been reported by studies coming from referral HCM cohorts. So far, other studies of community-based HCM populations have not man ...
European Cardiac Resynchronization Therapy Survey II
... importance of QRS duration and morphology, clinical status, and also provide new indications for CRT in patients requiring upgrades to CRT, patients with atrial fibrillation and in those who need permanent ventricular pacing due to high degree atrioventricular block.15 Most of the current informatio ...
... importance of QRS duration and morphology, clinical status, and also provide new indications for CRT in patients requiring upgrades to CRT, patients with atrial fibrillation and in those who need permanent ventricular pacing due to high degree atrioventricular block.15 Most of the current informatio ...
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.