Hence, this is a normal sinus rhythm. The P wave before the second QRS complex (*) has a different morphology. This is a PAC. Because every other QRS complex is a PAC, this is atrial bigeminy. The PR associated with the PAC is shorter (0.10 sec). All of the QRS complexes have ...
A 28-year-old woman underwent radiofrequency catheter ablation of narrow QRS tachycardia (NQT) that was terminated with intravenous adenosine. Twelve-lead ECGwas normal during sinus rhythm.On electrophysiological study, an atrial programmed stimulation reproducibly induced a NQT. Figure 1 shows a ...
求翻译:A sinus arrhythmia is an irregular ventricular rhythm which is of sino-atrial origin. On the ECG, the QRS to QRS interval varies and there is a P wave for every QRS complex.是什么意思?待解决 悬赏分:1 - 离问题结束还有 A sinus arrhythmia is an irregular ventricular rhythm which is...
The normal rate is 70 to 90 pulsations per minute in adults, and 90 to 120 in children. Various diseases may be indicated by changes in the rate, rhythm, and force of the pulse. pulse, in botany pulse, in botany, common name for members of the Fabaceae (Leguminosae), a large plant...
Norepinephrine increases muscle contractions and heart rate, while acetylcholine does the reverse. By continuously self-adjusting the secretion of these two neurotransmitters, the body is kept in perfect balance and the heart produces normal sinus rhythm. In times of stress or emergency, the body has...
where τ is the shear stress, μ is the dynamic viscosity of the flowing fluid, V is the velocity and y is the direction normal to the flow direction. For larger shear stresses, the fluid cannot sustain the viscous shear stress and turbulence spots develop. After apparition of turbulence spo...
Anarrhythmia, ordysrhythmia, is a disturbance in the electrical system of the heart leading to an irregular heart beat. The rhythm is usually affected and in some cases there is also a disruption in the rate meaning that the heart beats faster or slower than normal. There are several differen...
Doctors have long assumed that the best way to treat the heart irregularity called atrial fibrillation is to get the heart back to a regular rhythm and maintain it, using electric shock or strong drugs. Restoring normal rhythm, or sinus rhythm, was thought to reduce the risk of strokes and ...
The absence of the diseased tissue brings the heart back to its normal state. IV. ICD. An ICD1 is a device that monitors the heart rate and produces a shock when needed. It is similar to the pacemaker. References: Heart.org - Implantable Cardioverter Defibrillator (ICD) IMPORTANT NOTE: ...
Ventricular fibrillationis a heart rhythm issue in the heart's lower ventricles. It is a misfire in the electrical signals of the heart that cause the ventricles to flutter randomly. If normal heart rhythm is not restored, it can lead to death. Ventricular fibrillation is most found in those...