Relationship between plasma aldosterone and left ventricular
... Mean levels of baseline and stimulated PRA were similar in hypertensives and control group of normotensives. Baseline and stimulated PA levels were mildly but not significantly higher compared to control group. Using Tukey Kramer multiple analysis we found a significant positive correlation of both ...
... Mean levels of baseline and stimulated PRA were similar in hypertensives and control group of normotensives. Baseline and stimulated PA levels were mildly but not significantly higher compared to control group. Using Tukey Kramer multiple analysis we found a significant positive correlation of both ...
but unusual neurological complication of the investigation
... and Cole (1955) and by Meadows, Bergstrand, and Sharp (1961). The condition leads to a right-toleft shunt in the absence of clinical features of cardiovascular abnormalities. A further case in which the diagnosis was confirmed by cardiac catheterization is here put on record. Angiography demonstrate ...
... and Cole (1955) and by Meadows, Bergstrand, and Sharp (1961). The condition leads to a right-toleft shunt in the absence of clinical features of cardiovascular abnormalities. A further case in which the diagnosis was confirmed by cardiac catheterization is here put on record. Angiography demonstrate ...
Cardiac Pacing Site Optimization
... pacing and delivering leads to that location. The fact that RVA pacing causes LV dysfunction was recognized as early as 1925.18 During both sinus and atrial pacing, the Purkinje system contributes significantly to rapid electrical activation of the ventricles, whereas the impulse from ventricular pa ...
... pacing and delivering leads to that location. The fact that RVA pacing causes LV dysfunction was recognized as early as 1925.18 During both sinus and atrial pacing, the Purkinje system contributes significantly to rapid electrical activation of the ventricles, whereas the impulse from ventricular pa ...
Myocardial perfusion imaging - Society of Nuclear Medicine
... drugs must be available in the immediate vicinity of the stress laboratory. A physician or other trained medical personnel currently certified in advanced cardiac life support (ACLS) must be immediately available during the stress and recovery phases. Continuous ECG monitoring must be performed duri ...
... drugs must be available in the immediate vicinity of the stress laboratory. A physician or other trained medical personnel currently certified in advanced cardiac life support (ACLS) must be immediately available during the stress and recovery phases. Continuous ECG monitoring must be performed duri ...
Ventricular Septal Defects
... • Small VSD: no treatment may be needed. But closely monitored to make sure that the hole eventually closes. • Large VSD: who have symptoms related to heart failure may need medicine to control the symptoms and surgery to close the hole. • If symptoms continue, even with medication, surgery to close ...
... • Small VSD: no treatment may be needed. But closely monitored to make sure that the hole eventually closes. • Large VSD: who have symptoms related to heart failure may need medicine to control the symptoms and surgery to close the hole. • If symptoms continue, even with medication, surgery to close ...
Lecture 14 - CV Pump physiology
... – Thus, the Venous return is from a capacitant system and provides preload to the heart ...
... – Thus, the Venous return is from a capacitant system and provides preload to the heart ...
right → left shunt
... named after Etienne-Louis Arthur Fallot (1888) who described it as "la maladie blue" and is a common developmental cardiac defect. The syndrome consists of a number of cardiac defects possibly stemming from abnormal neural crest migration. consists of: 1. ventricular septal defect 2. pulmonary steno ...
... named after Etienne-Louis Arthur Fallot (1888) who described it as "la maladie blue" and is a common developmental cardiac defect. The syndrome consists of a number of cardiac defects possibly stemming from abnormal neural crest migration. consists of: 1. ventricular septal defect 2. pulmonary steno ...
IHD ModuleFY2015Q3
... Enter 98 if beta-blockers were prescribed, and the patient did not refuse at the time of prescription, but the patient did not take the medication, stopped it on his own, or took it only occasionally. Enter 99 if the patient was discharged from a private sector hospital and records are not available ...
... Enter 98 if beta-blockers were prescribed, and the patient did not refuse at the time of prescription, but the patient did not take the medication, stopped it on his own, or took it only occasionally. Enter 99 if the patient was discharged from a private sector hospital and records are not available ...
Cardiac Rehabilitation (Phase II Outpatient)
... Most Phase II exercise programs consist of three sessions per week for 12 weeks. However, the frequency and duration may be impacted by the level of cardiac risk stratification and the degree of limitation of exercise during the exercise stress test prior to initiation of rehabilitation. Risk strati ...
... Most Phase II exercise programs consist of three sessions per week for 12 weeks. However, the frequency and duration may be impacted by the level of cardiac risk stratification and the degree of limitation of exercise during the exercise stress test prior to initiation of rehabilitation. Risk strati ...
Myocardial High Energy Phosphate Stores in Cardiac Hypertrophy
... (CP) and adenosine triphosphate (ATP) were determined in samples removed from the right ventricles of these animals during life and in papillary muscles isolated from these same hearts. The papillary muscles from the cats with hypertrophy and failure exhibited depressed intrinsic contractility. The ...
... (CP) and adenosine triphosphate (ATP) were determined in samples removed from the right ventricles of these animals during life and in papillary muscles isolated from these same hearts. The papillary muscles from the cats with hypertrophy and failure exhibited depressed intrinsic contractility. The ...
Atrial Fibrillation and Heart Failure: A Review of the
... repolarization, creating a substrate for the initiation and maintenance of AF.18 Atrial stretch, as a consequence of increased atrial volume and pressure, activates stretch-activated ionic currents which result in increased dispersion of refractoriness and alterations in anisotropic and conduction p ...
... repolarization, creating a substrate for the initiation and maintenance of AF.18 Atrial stretch, as a consequence of increased atrial volume and pressure, activates stretch-activated ionic currents which result in increased dispersion of refractoriness and alterations in anisotropic and conduction p ...
- St George`s, University of London
... Asymptomatic athletes with WPW are a contentious issue. It is appreciated that malignant arrhythmias in WPW correlate more strongly with electrophysiological properties of the accessory pathway rather than symptom status36. Therefore, whilst there is general agreement that risk stratification of aff ...
... Asymptomatic athletes with WPW are a contentious issue. It is appreciated that malignant arrhythmias in WPW correlate more strongly with electrophysiological properties of the accessory pathway rather than symptom status36. Therefore, whilst there is general agreement that risk stratification of aff ...
Emergency defibrillation performed by coronary nursing staff: a pilot
... those who are found in arrest.11 As implied from this large-scale study, the time delay in initiating therapy may be detrimental. Coronary care unit nurses are frequently the first responders and they witness nearly all the cardiac arrests in the unit. In all the patients in the present report, defi ...
... those who are found in arrest.11 As implied from this large-scale study, the time delay in initiating therapy may be detrimental. Coronary care unit nurses are frequently the first responders and they witness nearly all the cardiac arrests in the unit. In all the patients in the present report, defi ...
Heart Valves - The Young Scientist Program
... → left atrium → left ventricle. In order to keep blood moving in the right direction small “one‐way doors”, known as valves, are located in between the various chambers. There are four major valves in the heart: ...
... → left atrium → left ventricle. In order to keep blood moving in the right direction small “one‐way doors”, known as valves, are located in between the various chambers. There are four major valves in the heart: ...
Nov 2011 Paper 2 - CODEinfo Limited
... bypass graft. He had a history of claudication due to aorto-iliac atherosclerosis. A preoperative angiogram revealed significant 3-vessel disease. On beating heart, without cardiopulmonary bypass (OPCAB), the left internal thoracic artery (LITA) was used to bypass the left anterior descending (LAD) ...
... bypass graft. He had a history of claudication due to aorto-iliac atherosclerosis. A preoperative angiogram revealed significant 3-vessel disease. On beating heart, without cardiopulmonary bypass (OPCAB), the left internal thoracic artery (LITA) was used to bypass the left anterior descending (LAD) ...
MAYO CLINIC HEALTH LETTER
... rate greater than 100 beats a minute — is called tachycardia. A slow heartbeat — a resting heart rate of less than 60 beats a minute — is called bradycardia. Rarely do slower heart rates cause the sensation of palpitations. Palpitations can be associated with many types of arrhythmias, ranging from ...
... rate greater than 100 beats a minute — is called tachycardia. A slow heartbeat — a resting heart rate of less than 60 beats a minute — is called bradycardia. Rarely do slower heart rates cause the sensation of palpitations. Palpitations can be associated with many types of arrhythmias, ranging from ...
Atrial Fibrillation - Ulster Medical Society
... however for patients with persistent AF, extensive substrate modification is usually required in addition. Substrate modification may require additional ablation throughout the right and left atrium, as well as the coronary sinus. PVI is more effective than medical management in patients with atrial ...
... however for patients with persistent AF, extensive substrate modification is usually required in addition. Substrate modification may require additional ablation throughout the right and left atrium, as well as the coronary sinus. PVI is more effective than medical management in patients with atrial ...
Effective Closure of the Mitral Valve without Atrial Systole
... closure of the atrioventricular valves.2,5-8 Using indicator-dilution methods, Daley et al.demonstrated in dogs that mitral incompetence develops with the onset of atrial fibrillation, Friedman and co-workers showed that extrasystoles frequently induced mitral regurgitation,l'6 while Skinner et al. ...
... closure of the atrioventricular valves.2,5-8 Using indicator-dilution methods, Daley et al.demonstrated in dogs that mitral incompetence develops with the onset of atrial fibrillation, Friedman and co-workers showed that extrasystoles frequently induced mitral regurgitation,l'6 while Skinner et al. ...
Congestive Heart Failure
... dysfunction (defined as dysfunction of left-ventricular filling with preserved systolic function) may occur in up to 40 –50% of patients with heart failure, it is more prevalent in women, and it increases in frequency with each decade of life. Diastolic dysfunction can occur in many of the same cond ...
... dysfunction (defined as dysfunction of left-ventricular filling with preserved systolic function) may occur in up to 40 –50% of patients with heart failure, it is more prevalent in women, and it increases in frequency with each decade of life. Diastolic dysfunction can occur in many of the same cond ...
Association of Coronary Sinus Diameter with Pulmonary Hypertension
... Background: Impaired venous drainage secondary to increased right atrial pressure (RAP) may result in coronary sinus (CS) dilatation. Methods: Two hundred fifteen patients referred for transthoracic echocardiography were included in the study. CS diameters were measured from apical four-chamber view ...
... Background: Impaired venous drainage secondary to increased right atrial pressure (RAP) may result in coronary sinus (CS) dilatation. Methods: Two hundred fifteen patients referred for transthoracic echocardiography were included in the study. CS diameters were measured from apical four-chamber view ...
Pharmacology and the Nursing Process, 4th ed. Lilley/Harrington
... A patient is receiving digoxin 0.25 mg daily as part of treatment for heart failure. The nurse assesses the patient before medication administration. Which assessment finding would be of most concern? A. Apical heart rate of 58 beats/min B. Ankle edema +1 bilaterally C. Serum potassium level of 2.9 ...
... A patient is receiving digoxin 0.25 mg daily as part of treatment for heart failure. The nurse assesses the patient before medication administration. Which assessment finding would be of most concern? A. Apical heart rate of 58 beats/min B. Ankle edema +1 bilaterally C. Serum potassium level of 2.9 ...
understanding pacemakers - Blue Cross and Blue Shield of Louisiana
... to contract (squeeze). If there’s a problem with this electrical system, the heart may not beat as often as it should. This means that the heart can’t pump the amount of blood that the body needs. ...
... to contract (squeeze). If there’s a problem with this electrical system, the heart may not beat as often as it should. This means that the heart can’t pump the amount of blood that the body needs. ...
Electrocardiography
Electrocardiography (ECG or EKG*) is the process of recording the electrical activity of the heart over a period of time using electrodes placed on a patient's body. These electrodes detect the tiny electrical changes on the skin that arise from the heart muscle depolarizing during each heartbeat.In a conventional 12 lead ECG, ten electrodes are placed on the patient's limbs and on the surface of the chest. The overall magnitude of the heart's electrical potential is then measured from twelve different angles (""leads"") and is recorded over a period of time (usually 10 seconds). In this way, the overall magnitude and direction of the heart's electrical depolarization is captured at each moment throughout the cardiac cycle. The graph of voltage versus time produced by this noninvasive medical procedure is referred to as an electrocardiogram (abbreviated ECG or EKG).During each heartbeat, a healthy heart will have an orderly progression of depolarization that starts with pacemaker cells in the sinoatrial node, spreads out through the atrium, passes through the atrioventricular node down into the bundle of His and into the Purkinje fibers spreading down and to the left throughout the ventricles. This orderly pattern of depolarization gives rise to the characteristic ECG tracing. To the trained clinician, an ECG conveys a large amount of information about the structure of the heart and the function of its electrical conduction system. Among other things, an ECG can be used to measure the rate and rhythm of heartbeats, the size and position of the heart chambers, the presence of any damage to the heart's muscle cells or conduction system, the effects of cardiac drugs, and the function of implanted pacemakers.