Ventricular fibrillation

The possible causes for this disorder can be due to an abnormalities in cardiac structure, function, rhythm or conduction. In developed countries, ventricular dysfunction is a frequent problem, which can be a result from myocardial infarction (systolic dysfunction), hypertension (diastolic and systolic dysfunction) or both (Krum and Abraham, 2009). For children, the various causes of congestive heart failure differ slightly to adults. This condition can develop due to volume and pressure…

de pointes is an arrhythmia that is characterized by the two lower heart chambers beating fast (Long QT syndrome, 2017). When this arrhythmia occurs, less blood is pumped out from your heart. If this arrhythmia is sustained, it can lead to ventricular fibrillation which causes the ventricles to beat so fast that the heart quivers and blood flow in ceased (Long QT syndrome, 2017). Therefore, with this being said, the importance of this research and developing a process to implement to prevent…

generalized tonic-clonic seizures. In relation to ST-segment elevation, cardiac ischemia is possible; however it is unlikely to occur in conjunction with uncomplicated seizures. (92) Ventricular arrhythmias are affected in susceptibility by myocyte myofilament damage and arrhythmogenic alterations. Lethal ventricular arrhythmias are at an increased risk for occurrence post-seizure with prolonged seizure activity. (Bealer) Respiratory changes occurring ictally are associated with tonic-clonic…

special group of patients that have ventricular assist devices. The patient I had cared for that impacted me personally, was named Dorothy. Dorothy was one of the patients with a ventricular assist device. She was actually on of the individuals from the first group to receive a ventricular assist device at Duke University Hospital. Dorothy had a past medical history that involved the…

situations. Arrhythmia is when the heart beats irregularly. This can cause someone to go into SCA or sudden cardiac arrest. The most common problem shown with SCA is ventricular fibrillation. This happens when the ventricles of the heart beat very rapidly and irregularly. The machine was first tested on animals that were manually sent into fibrillation. The first use of a defibrillator was by Claude Beck in 1947 on a 14 year old boy after he had an operation. However, this defibrillator was used…

(SCD) is a world wide health problem resulting in one-fifth of unexpected deaths in the western world. Ventricular fibrillation (VF) is one of the life-threatening arrhythmias contributing to the increasing number of individuals needing urgent medical assistance (Wellens, Gorgels & Munter, 2013). The following case study will explore a complex critically ill patient who has suffered from a ventricular tachycardia (VT) and VF due to dilated left ventricle (LV) with severe segmental systolic…

dogs had shown that a shock to the heart could trigger ventricular fibrillation, a condition where the heart twitches instead of beats. This was known to happen to powerline workers, killing them on the job (Eisenberg 4-5). William Kouwenhoven, an electrical engineer, became the lead researcher. In the 1930s, through experiments on dogs, he found that small shocks could cause fibrillations and that a larger shock would stop the fibrillations completely. Given the name countershock, the…

successful resuscitation of two patients who were suffering from ventricular standstill by placing external electrodes onto the anterior chest attached to a remote electric pulse generator (Ramsdale & Rao, 2012). Both patients had suffered from Stokes-Adams attacks, which is a life-threatening form of atrioventricular block characterized by episodes of ventricular standstill, ventricular escape bradycardia, ventricular tachycardia or fibrillation. The…

became severely worse and developed nausea and vomiting. The patient ultimately went into atrial fibrillation. An electrocardiogram was done and resulted in atrial fibrillation with fast ventricular response and a left bundle branch block. Once this was treated and under control the patient went for an echocardiogram and the results from this were: left ventricle ejection fraction of 62%, left ventricular hypertrophy, mitral valve…

node to the atria. Shortly after the P wave starts, the atria recoils. The QRS complex is a sign of ventricle depolarization. The average time span of the QRZ complex is about 0.08. After ventricular depolarization happens, ventricular contraction takes place. The T wave depicts ventricular repolarization. Ventricular repolarization averages a time span of 0.6 seconds. Repoloization takes more time than depolarization, resulting in a shorter and wider depiction on the graph. The ECG helps one…