Heart Rate (Fast and Easy ECGs, Shade / Wesley)
... BPM • Heart rate < 60 BPM called bradycardia • Heart rate > 100 BPM called tachycardia ...
... BPM • Heart rate < 60 BPM called bradycardia • Heart rate > 100 BPM called tachycardia ...
Abstract
... should have a valve replacement before they develop left ventricular dysfunction, and before the heart's ejection fraction falls below 55%. Valve ...
... should have a valve replacement before they develop left ventricular dysfunction, and before the heart's ejection fraction falls below 55%. Valve ...
Electrocardiographic Changes in Infectious Diseases
... 2 months. It is characterized by fatigue, fever, hepatosplenomegaly, and enlarged lymph nodes. Young children can present with convulsions and meningo encephalitis when it affects the brain. Patients are asymptomatic during the intermediate phase, which lasts for 20 to 30 years. The chronic phase c ...
... 2 months. It is characterized by fatigue, fever, hepatosplenomegaly, and enlarged lymph nodes. Young children can present with convulsions and meningo encephalitis when it affects the brain. Patients are asymptomatic during the intermediate phase, which lasts for 20 to 30 years. The chronic phase c ...
Case Report - the Cardiovascular Journal of Africa
... remains the most effective therapy for CP. Diastolic dysfunction and low-output syndrome occur in a considerable number A ...
... remains the most effective therapy for CP. Diastolic dysfunction and low-output syndrome occur in a considerable number A ...
Very Long-Term Results (More Than 20 Years) of Valve Repair With
... transposition of chordae in 49 patients. During the first postoperative month, there were 3 deaths (1.9%) and 3 reoperations (2 valve replacements and 1 repeat repair [1.9%]). Six patients were lost to follow-up. The remaining 151 patients with mitral valve repair were followed during a median of 17 ...
... transposition of chordae in 49 patients. During the first postoperative month, there were 3 deaths (1.9%) and 3 reoperations (2 valve replacements and 1 repeat repair [1.9%]). Six patients were lost to follow-up. The remaining 151 patients with mitral valve repair were followed during a median of 17 ...
Pacemaker Syndrome During Managed Ventricular
... repetitively fall in the ARP since the device operates a refractory period based on the R–R cycle length rather than on the A–A interval, which is half shorter. Two consequences derive from this condition: first, refractory sinus beats do not reset the timer of atrial escape interval (1000 ms) and, ...
... repetitively fall in the ARP since the device operates a refractory period based on the R–R cycle length rather than on the A–A interval, which is half shorter. Two consequences derive from this condition: first, refractory sinus beats do not reset the timer of atrial escape interval (1000 ms) and, ...
Neonatal Cardiac Surgery
... specially in neonates (8). Its beneficial effects have been demonstrated on reduction of total body water, but also upon myocardial and lung function, as well as on the coagulation cascade. It seems that, besides its hemoconcentration action, some antiinflammatory effect might be expected from the u ...
... specially in neonates (8). Its beneficial effects have been demonstrated on reduction of total body water, but also upon myocardial and lung function, as well as on the coagulation cascade. It seems that, besides its hemoconcentration action, some antiinflammatory effect might be expected from the u ...
Surgical Repair Is the Treatment of Choice for Native Aortic
... Immediate postnatal LV growth? The dramatic acute dimensional changes following repair of borderline LV lesions are the result of normalization of loading conditions that permit full expression of left ventricular phenotype This not evidence of growth but simple unmasking of the left ventricle pote ...
... Immediate postnatal LV growth? The dramatic acute dimensional changes following repair of borderline LV lesions are the result of normalization of loading conditions that permit full expression of left ventricular phenotype This not evidence of growth but simple unmasking of the left ventricle pote ...
Full Text - Res Cardiovasc Med
... increases in depolarization duration and not in repolarization. Objectives: In this study, we aimed to apply corrected JT interval (JTc) as an appropriate measure of ventricular repolarization for predicting QTc in a formula. Patients and Methods: The study population consisted of 101 patients with ...
... increases in depolarization duration and not in repolarization. Objectives: In this study, we aimed to apply corrected JT interval (JTc) as an appropriate measure of ventricular repolarization for predicting QTc in a formula. Patients and Methods: The study population consisted of 101 patients with ...
Assessment Of Sinoatrial Node Function In Patients With
... with a frequency from 45 to 94 bpm (see tab. 2). The average duration of P wave 128,0±24,2 ms, PQ interval - 220,1±36,5 ms, QRS complex width - 118,6±20,1 ms. The time of carrying out an impulse from sinus node to His bundle (AH interval) and from His bundle to ventricles (HV interval) made 88,2±34, ...
... with a frequency from 45 to 94 bpm (see tab. 2). The average duration of P wave 128,0±24,2 ms, PQ interval - 220,1±36,5 ms, QRS complex width - 118,6±20,1 ms. The time of carrying out an impulse from sinus node to His bundle (AH interval) and from His bundle to ventricles (HV interval) made 88,2±34, ...
12-1 Test Bank Sole: Introduction to Critical Care Nursing, 5th
... TOP: Nursing Process Step: Diagnosis MSC: NCLEX: Physiological Integrity 11. A 72-year-old woman is brought to the ED by her family. The family states that she’s “just not herself.” Her respirations are slightly labored, and her heart monitor shows sinus tachycardia (rate 110) with frequent prematur ...
... TOP: Nursing Process Step: Diagnosis MSC: NCLEX: Physiological Integrity 11. A 72-year-old woman is brought to the ED by her family. The family states that she’s “just not herself.” Her respirations are slightly labored, and her heart monitor shows sinus tachycardia (rate 110) with frequent prematur ...
A randomized controlled trial of acupuncture in stable ischemic heart
... provocative testing using our previously validated and published methods [13]. A 24-hour recording was considered eligible for this study if it had more than 12 h of analyzable data, had half of the nighttime and daytime periods analyzable, and if more than 50% of the recording revealed sinus rhythm ...
... provocative testing using our previously validated and published methods [13]. A 24-hour recording was considered eligible for this study if it had more than 12 h of analyzable data, had half of the nighttime and daytime periods analyzable, and if more than 50% of the recording revealed sinus rhythm ...
Atrial Fibrillation Associated with Heart Failure, Stroke and
... as increased atrial loading, atrial dilation, conduction disturbances, and atrial fibrosis.9 In addition, AF can lead to HF because of higher heart rate and subsequent tachycardiomyopathy.10 As observed in animal models, the mechanisms involved in this complex process seem to be related to myocardia ...
... as increased atrial loading, atrial dilation, conduction disturbances, and atrial fibrosis.9 In addition, AF can lead to HF because of higher heart rate and subsequent tachycardiomyopathy.10 As observed in animal models, the mechanisms involved in this complex process seem to be related to myocardia ...
Biology 13A Lab #10: Cardiovascular System II —ECG
... The electrical events slightly precede the mechanical events of the heart; there is a slight delay between the electrical stimulation and the contraction of the sheets of cardiomyocytes. For example, ventricular systole (contraction) begins shortly after the QRS complex. Ventricular systole, then, o ...
... The electrical events slightly precede the mechanical events of the heart; there is a slight delay between the electrical stimulation and the contraction of the sheets of cardiomyocytes. For example, ventricular systole (contraction) begins shortly after the QRS complex. Ventricular systole, then, o ...
Oops! Who Forgot to Measure Cardiac Contraction Force (dP/dt)?
... Abstract Cardiovascular parameters are often used by researchers without sufficient understanding of the integrated nature of cardiac parameters, vascular tonus and baroreflex activity. Coupled with this is the use of research equipment that measures only a limited number of cardiac parameters such ...
... Abstract Cardiovascular parameters are often used by researchers without sufficient understanding of the integrated nature of cardiac parameters, vascular tonus and baroreflex activity. Coupled with this is the use of research equipment that measures only a limited number of cardiac parameters such ...
ECG-2 - Doctors2Be
... originating from the sinus node). The atrial rate is usually above 350 beats per minute Atrial activity is chaotic (resulting in an ...
... originating from the sinus node). The atrial rate is usually above 350 beats per minute Atrial activity is chaotic (resulting in an ...
Consensus Paper on Out-of-Hospital Cardiac Arrest in England Date: 16
... The most important number to consider is the total number of cardiac arrests from which the person may have a chance of surviving if someone starts a resuscitation attempt immediately. This remains uncertain but is likely to be greater than the number of cardiac arrests in which the EMS currently at ...
... The most important number to consider is the total number of cardiac arrests from which the person may have a chance of surviving if someone starts a resuscitation attempt immediately. This remains uncertain but is likely to be greater than the number of cardiac arrests in which the EMS currently at ...
IV
... mPrviso. Since SVImax represents the intercept at the SVI-axis, this yielded the third point of the graph. The three points are indicated in Figure 1. The single-beat method assumes that the pressure waveform of an isovolumic beat can be described by a sinusoidal function and that it can be obtained ...
... mPrviso. Since SVImax represents the intercept at the SVI-axis, this yielded the third point of the graph. The three points are indicated in Figure 1. The single-beat method assumes that the pressure waveform of an isovolumic beat can be described by a sinusoidal function and that it can be obtained ...
3 years old
... Preexitation syndromes Ventricular rhythm: premature ventricular contractions, ventricular tavchycardia ...
... Preexitation syndromes Ventricular rhythm: premature ventricular contractions, ventricular tavchycardia ...
Three-Dimensional Electrogram in Spherical Coordinates
... required. Almost all present SCG evaluations are done by computer processing; therefore using the threedimensional loop is undeniably more advantageous. Many various approaches in presenting a SCG loop were introduced with the aim to portray SCG loop as easily as possible. For example newer software ...
... required. Almost all present SCG evaluations are done by computer processing; therefore using the threedimensional loop is undeniably more advantageous. Many various approaches in presenting a SCG loop were introduced with the aim to portray SCG loop as easily as possible. For example newer software ...
24 Analysis of ECG
... letters (q, r, s). Duration of ventricular complex is 0,06-0,09 s in the standard leads Wave Q displays spread of excitation through the middle and lower thirds of the interventricular septum. It should not exceed 1/4 of prongs ʼ R amplitude in a healthy person, and its duration – 0,03 sec. But aVR- ...
... letters (q, r, s). Duration of ventricular complex is 0,06-0,09 s in the standard leads Wave Q displays spread of excitation through the middle and lower thirds of the interventricular septum. It should not exceed 1/4 of prongs ʼ R amplitude in a healthy person, and its duration – 0,03 sec. But aVR- ...
Cardiac contractility modulation
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Cardiac contractility modulation (CCM) is a treatment for patients with moderate to severe left ventricular systolic heart failure (NYHA class II–IV). The short- and long-term use of this therapy enhances both the strength of ventricular contraction and the heart’s pumping capacity. The CCM mechanism is based on stimulation of the cardiac muscle by non-excitatory electrical signals (NES). CCM treatment is delivered by a pacemaker-like device that applies the NES, adjusted to and synchronized with the electrical action in the cardiac cycle.In CCM therapy, electrical stimulation is applied to the cardiac muscle during the absolute refractory period. In this phase of the cardiac cycle, electrical signals cannot trigger new cardiac muscle contractions, hence this type of stimulation is known as a non-excitatory stimulation. However, the electrical CCM signals increase the influx of calcium ions into the cardiac muscle cells (cardiomyocytes). In contrast to other electrical stimulation treatments for heart failure, such as pacemaker therapy or implantable cardioverter defibrillators (ICD), CCM does not affect the cardiac rhythm directly. Rather, the aim is to enhance the heart’s natural contraction (the native cardiac contractility) sustainably over long periods of time. Furthermore, unlike most interventions that increase cardiac contractility, CCM is not associated with an unfavorable increase in oxygen demand by the heart (measured in terms of Myocardial Oxygen Consumption or MVO2). This may be explained by the beneficial effect CCM has in improving cardiac efficiency. A meta-analysis in 2014 and an overview of device-based treatment options in heart failure in 2013 concluded that CCM treatment is safe, that it is generally beneficial to patients and that CCM treatment increases the exercise tolerance (ET) and quality of life (QoL) of patients. Furthermore, preliminary long-term survival data shows that CCM is associated with lower long-term mortality in heart failure patients when compared with expected rates among similar patients not treated with CCM.