cardiovascular complications of scorpion stings and the effects of
... complications.9 We did not encounter any patients during the prospective study period with serious neurologic complications who did not have some cardiovascular manifestations. The spectrum of cardiovascular complications that we encountered included electrocardiographic features simulating myocardi ...
... complications.9 We did not encounter any patients during the prospective study period with serious neurologic complications who did not have some cardiovascular manifestations. The spectrum of cardiovascular complications that we encountered included electrocardiographic features simulating myocardi ...
CARDIAC RESYNCHRONISATION THERAPY IN HEART FAILURE
... non-contractile cells, fibrosis and apoptosis. Experimentallyinduced left bundle branch block causes eccentric hypertrophy (25) with an apico-basal and septo-lateral oriented gradient and determines altered synthesis of stress kinases and calcium-handling proteins in the high stress areas (23). Furt ...
... non-contractile cells, fibrosis and apoptosis. Experimentallyinduced left bundle branch block causes eccentric hypertrophy (25) with an apico-basal and septo-lateral oriented gradient and determines altered synthesis of stress kinases and calcium-handling proteins in the high stress areas (23). Furt ...
Heart Failure: How Is It Diagnosed?
... will have more tests to find the cause and type of heart failure so that you can get the right treatment. Common tests include: • Blood tests. Routine blood tests can help your doctor identify the cause of heart failure, find out if your kidneys and liver have been affected, and know whether you hav ...
... will have more tests to find the cause and type of heart failure so that you can get the right treatment. Common tests include: • Blood tests. Routine blood tests can help your doctor identify the cause of heart failure, find out if your kidneys and liver have been affected, and know whether you hav ...
Endo-Myocardial Biopsy
... be quite safe and without any serious complications. The most marked changes occurred in case 2 where two premature contractions were observed during excision of the cardiac tissue. Additional EGG changes or other complications did not occur in case 5 where frequent premature contractions were prese ...
... be quite safe and without any serious complications. The most marked changes occurred in case 2 where two premature contractions were observed during excision of the cardiac tissue. Additional EGG changes or other complications did not occur in case 5 where frequent premature contractions were prese ...
1-Heart 20162016-02
... • The beating of the heart is regulated by the intrinsic conduction (nodal) system • Its function is to ensure that the chambers of the heart contract in the proper rhythm and sequence: • The main center is the sinoatrial (SA) node, located in the right atrium • The atrioventricular (AV) node is loc ...
... • The beating of the heart is regulated by the intrinsic conduction (nodal) system • Its function is to ensure that the chambers of the heart contract in the proper rhythm and sequence: • The main center is the sinoatrial (SA) node, located in the right atrium • The atrioventricular (AV) node is loc ...
St. Jude Medical
... quality of life by pacing in the atrium just above the intrinsic rate.9 Furthermore, these devices have programmable AT/AF alert triggers to provide real-time insight into changes in atrial arrhythmia status. Improved lead technology (such as the OptiSense® Optim® lead) results in more accurate atri ...
... quality of life by pacing in the atrium just above the intrinsic rate.9 Furthermore, these devices have programmable AT/AF alert triggers to provide real-time insight into changes in atrial arrhythmia status. Improved lead technology (such as the OptiSense® Optim® lead) results in more accurate atri ...
Chapter 9
... • Aortic pressure is inversely related to stroke volume • High afterload results in a decreased stroke volume – Requires greater force generation by the myocardium to eject blood into the aorta • Reducing aortic pressure results in higher stroke volume ...
... • Aortic pressure is inversely related to stroke volume • High afterload results in a decreased stroke volume – Requires greater force generation by the myocardium to eject blood into the aorta • Reducing aortic pressure results in higher stroke volume ...
Chapter 8
... Malfunction of heart valves Murmurs or abnormal heart sound Causes ○ Congenital abnormalities or malformations ○ Rheumatic fever ○ Endocarditis ...
... Malfunction of heart valves Murmurs or abnormal heart sound Causes ○ Congenital abnormalities or malformations ○ Rheumatic fever ○ Endocarditis ...
Sustained monomorphic left ventricular outflow tract
... diac rehabilitation. The patient presented with shortness of breath and sweating. Initial attempts to terminate the VT by amiodarone and external electrical cardioversion were unsuccessful. Thereafter, ajmalin was given, which temporarily halted the VT. However, frequent premature ventricular beats ...
... diac rehabilitation. The patient presented with shortness of breath and sweating. Initial attempts to terminate the VT by amiodarone and external electrical cardioversion were unsuccessful. Thereafter, ajmalin was given, which temporarily halted the VT. However, frequent premature ventricular beats ...
The Cardiovascular System
... surgical repair of heart valve; could also mean surgical replacement of a heart valve. pacemaker – an electronic device that may be attached externally or implanted under the skin, with connections leading into the heart to regulate the heartbeat. Usually for bradycardia or atrial fibrillation. ...
... surgical repair of heart valve; could also mean surgical replacement of a heart valve. pacemaker – an electronic device that may be attached externally or implanted under the skin, with connections leading into the heart to regulate the heartbeat. Usually for bradycardia or atrial fibrillation. ...
METHODS ONLINE ONLY
... were kept and handled in accordance with the recommendations of the “Guide for the Care and Use of Laboratory Animals” published by the US National Institutes of Health (NIH Publication No. 85-23, Revised 1996). Infrarenal aortocaval fistula was created in a first group of animals (n=15) by insertin ...
... were kept and handled in accordance with the recommendations of the “Guide for the Care and Use of Laboratory Animals” published by the US National Institutes of Health (NIH Publication No. 85-23, Revised 1996). Infrarenal aortocaval fistula was created in a first group of animals (n=15) by insertin ...
Ventricular Anatomy for the Electrophysiologist (Part II)
... staining pattern of synaptophysin at the atrial myocardium was a slender network between the myocytes (Figure 5). This pattern was the most prominent at the atrial myocardium and AV node. His bundle is faintly stained and ventricular myocardium is the weakest. C-Kit is known to be one of the markers ...
... staining pattern of synaptophysin at the atrial myocardium was a slender network between the myocytes (Figure 5). This pattern was the most prominent at the atrial myocardium and AV node. His bundle is faintly stained and ventricular myocardium is the weakest. C-Kit is known to be one of the markers ...
Cardiac Pacemakers
... 1V, 2V, 4V, 8V • pulse duration (typical values) programmable between 0,5 ms and 2 ms Stimulation threshold is measured at implantation. Pulse magnitude corresponding to twice stimulation threshold is set for better reliability ...
... 1V, 2V, 4V, 8V • pulse duration (typical values) programmable between 0,5 ms and 2 ms Stimulation threshold is measured at implantation. Pulse magnitude corresponding to twice stimulation threshold is set for better reliability ...
Cardiovascular System: The Heart B
... (c) Second-degree heart block. (d) Ventricular fibrillation. These chaotic, grossly irregular ECG Some P waves are not conducted deflections are seen in acute through the AV node; hence more heart attack and electrical shock. P than QRS waves are seen. In this tracing, the ratio of P waves to QRS wa ...
... (c) Second-degree heart block. (d) Ventricular fibrillation. These chaotic, grossly irregular ECG Some P waves are not conducted deflections are seen in acute through the AV node; hence more heart attack and electrical shock. P than QRS waves are seen. In this tracing, the ratio of P waves to QRS wa ...
File
... sympathetic activity-induced arrhythmias such as stressand exercise-induced arrhythmias Atrial flutter and fibrillation. AV nodal tachycardia. Reduce mortality in postmyocardial infarction patients Protection against sudden cardiac death ...
... sympathetic activity-induced arrhythmias such as stressand exercise-induced arrhythmias Atrial flutter and fibrillation. AV nodal tachycardia. Reduce mortality in postmyocardial infarction patients Protection against sudden cardiac death ...
A5 Ventricular Arrhythmia
... Internal Cardioverter – Defibrillator (ICD) - 19 • Patients at risk should consider a ICD • Single chamber pacemaker is put in the left side of the chest underneath the skin which is usually the opposite arm of the dominant hand. (vice versa if the patient is left-handed) • A coil is associated wit ...
... Internal Cardioverter – Defibrillator (ICD) - 19 • Patients at risk should consider a ICD • Single chamber pacemaker is put in the left side of the chest underneath the skin which is usually the opposite arm of the dominant hand. (vice versa if the patient is left-handed) • A coil is associated wit ...
Pattern of cardiac diseases in children in Pokhara, Nepal
... clinical examination, ECG and X-Ray and hence were not included in this study. Innocent murmurs have been reported as high as 40-60%, and with exercise these may go up to 90%. Children below 2 years need to be followed up every 2-3 years but over 2 years need not be. Diagnostic tests for innocent mu ...
... clinical examination, ECG and X-Ray and hence were not included in this study. Innocent murmurs have been reported as high as 40-60%, and with exercise these may go up to 90%. Children below 2 years need to be followed up every 2-3 years but over 2 years need not be. Diagnostic tests for innocent mu ...
What causes congenital heart defects?
... Family history and CHD • If you have had one child with congenital heart disease, the chance… from 1.5 to 5 percent. • Two children with CHD, then the risk increases to 5 to 10 percent. • Mother has CHD CHD ranges from 2.5 to 18 percent (average risk of 6.7 percent) • Father has CHD from 1.5 to ...
... Family history and CHD • If you have had one child with congenital heart disease, the chance… from 1.5 to 5 percent. • Two children with CHD, then the risk increases to 5 to 10 percent. • Mother has CHD CHD ranges from 2.5 to 18 percent (average risk of 6.7 percent) • Father has CHD from 1.5 to ...
Off-Pump Plication of Post MI Left Ventricular Aneurysm
... All thinned nonfunctioning portions of the wall were considered for plication. ...
... All thinned nonfunctioning portions of the wall were considered for plication. ...
Between Scylla and Charybdis: a choice between
... alternative pacing sites, to preserve ventricular performance. Although the advantage of a regular ventricular response seems to be important[2], RV apical stimulation is not physiological because normal ventricular activation along the natural conduction system is bypassed and the ventricles are ac ...
... alternative pacing sites, to preserve ventricular performance. Although the advantage of a regular ventricular response seems to be important[2], RV apical stimulation is not physiological because normal ventricular activation along the natural conduction system is bypassed and the ventricles are ac ...
A Case of Loeffler`s Endocarditis Associated with Churg
... on right lower lung field (Fig. 1). Prominent soft tissues on the right tracheal and right hilar area were also noted. Electrocardiography showed a sinus rhythm with low voltages in standard leads, negative T-waves in leads I, II, III, and V2-6 (Fig. 2). Transthoracic echocardiography showed a mildl ...
... on right lower lung field (Fig. 1). Prominent soft tissues on the right tracheal and right hilar area were also noted. Electrocardiography showed a sinus rhythm with low voltages in standard leads, negative T-waves in leads I, II, III, and V2-6 (Fig. 2). Transthoracic echocardiography showed a mildl ...
File cpr certification review
... 30.________ You should never interrupt compressions for more than 15 seconds when performing breaths. ...
... 30.________ You should never interrupt compressions for more than 15 seconds when performing breaths. ...
the current role of echocardiography in cardiac resynchronization
... HF patients with narrow QRS <130 ms, EF ≤35 %, LV end-diastolic diameter ≥55 mm, and mechanical dyssynchrony concluded that these patients do not benefit from CRT [10]. EchoCRT used either a peak-to-peak time delay in tissue Doppler LV opposing wall velocities or a peak-to-peak septal to posterior ...
... HF patients with narrow QRS <130 ms, EF ≤35 %, LV end-diastolic diameter ≥55 mm, and mechanical dyssynchrony concluded that these patients do not benefit from CRT [10]. EchoCRT used either a peak-to-peak time delay in tissue Doppler LV opposing wall velocities or a peak-to-peak septal to posterior ...
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.