formation continues in the dentate gyrus of the hippocampus (2). The hippocampus, which lies beneath the cortex is a major factor of learning and memory formation and can indirectly influence emotion. Progenitor cells which are present in the sub ventricular zone of the hippocampus are responsible for such growth as they produce daughter neuron cells through division (2). In the 1960s, Joseph Altman from MIT reported that new neurons were being produced in the dentate gyrus of the hippocampus of
flowing through the heart disrupts the normal coordination of heart muscles. These muscles lose their vital rhythm and begin a process known as ventricular fibrillation. Death soon follows. 0.25 Amps/250mA is equal to the current flowing through a 60W Bulb. What is ventricular fibrillation? The heart beats when electrical signals move through it. Ventricular fibrillation is a condition in which the heart's electrical activity becomes disordered. When this happens, the heart's lower (pumping) chambers
Ventricular assist device (VAD), in general, may be any device designed to be used as a mechanical pump to aid in the movement of blood in people with weakened and/or diseased hearts. It is used to take blood from the ventricles, the lower chambers of the heart, throughout the body and vital organs. There are two common devices one for the left and the other for the right ventricles. Though the LVAD is used more frequently since it pumps blood to the aorta, the RVAD is often used for a short time
victim's heart rhythm through adhesive electrodes (some AED models require you to press an ANALYZE button). The computer analyzes the heart rhythm and advises the operator whether a shock is needed. AEDs advise a shock only to ventricular fibrillation and fast ventricular tachycardia. The electric current is delivered through the victim's chest wall through adhesive electrode pads. Why are AEDs important? AEDs are important because they strengthen the Chain of Survival. They can restore a normal
Left Ventricular Systolic Dysfunction (LVSD, but commonly referred to as heart failure) is a chronic, progressive cardiac syndrome in which a damaged heart fails to beat efficiently and deliver enough blood to meet the body's needs. Although coronary heart disease (CHD) is the most common cause, for example, myocardial infarction, and many of the conditions are intertwined, there are several other causes of heart failure including cardiomyopathies, hypertension and valve disease. Cardiomyopathies
adults each year in this hi tech world (Zheng et al 2001). Therapeutic hypothermia (TH) may increase survival and reduce the amount of neurologic damage after cardiac arrest. According to the recent guidelines, comatose survivors of out-of-hospital ventricular fibrillation cardiac arrest should be cooled with internal or external cooling techniques to a target temperature of 32 °C to 34 °C (patients with in-hospital cardiac arrest or other primary rhythms may also be cooled. This target temperature should
Commotio cordis occurs after a blunt, non-penetrating blow to the precordial area of the chest wall that results in the induction of an often fatal ventricular fibrillation in a heart that does not have a preexisting structural or electrophysiological cardiovascular disease (Yabek, 2011). The blow is often perceived to be irrelevant, yet can cause a debilitating injury or even death. Death may be sudden or after a brief period of lucidity with purposeful movement prior to collapse (Yabek, 2011).
States can look into is having a defibrillator on site of any athletic activity. A defibrillator can be used when someone undergoes a sudden cardiac arrest. The defibrillator will deliver an electric shock to the heart to try to get it to stop the ventricular fibrillation which is when your heart rate increases and does not produce enough blood to the brian or other organs. A defibrillator was used in the case of Wes Leonard, but unfortunately it was not enough. As of right now I do not believe that
The records have been reviewed. The member is an adult male with a birth date of 02/09/1959. He has a diagnosis of ischemic cardiomyopathy. His treating provider, Maria Costanzo, MD, recommended the Zoll LifeVest (wearable cardioverter defibrillator) for the following dates of service 09/02/2015, 10/02/2015, 12/02/2015, 01/02/2016-02/02/2016 (totaling 4 units). The carrier has denied coverage for the Zoll LifeVest as experimental and/or investigational and not medically necessary. A letter from
today is this life save device called a automated external defibrillator. It has become the number one way to resuscitate a person who has had a cardiac arrest unwitnessed by emergency medical services and who is still in persistent ventricular fibrillation or ventricular tachycardia. Many people have played a big role in creating this device to become more efficient, smaller and easier to use for the general public. Here are just to name a few that played a part in the creation for this device: Claude
The patient L.E. is a 73 year old male. The patient has no history of coronary artery disease or any problems with his heart. Yet, he suffered an event of ventricular fibrillation which he was shocked for followed by a massive heart attack while unaccompanied at a restaurant. Upon arrival to the Southcoast Hospital he went into ventricular tachycardia in the Emergency Room and was shocked a second time. According to the Southcoast critical care manual, these events are part of the inclusion criteria
well as absorption, and on account of CSF being produced continuously, 16 oz each day to be exact, the blocking creates a surplus of CSF resulting in the said pressure against the brain tissue. The surplus accretion of CSF additionally motivates ventricular dilation in which the gaps between the brain, known as ventricles, abnormally widen.
malformations. It is estimated that “eight in 1,000 newborns” are said to have congenital heart defects, an abnormal aliment of the heart and blood vessels surrounding the heart. A ventricular septal defect (VSD) accounts for 25-30 percent of all congenital heart defects, with 1 in 500 infants born with a VSD. A ventricular septal defect or hole in the heart occurs along the septum between the ventricles of the heart. During fetal development the left and right ventricles are not separated, but as the
asymptomatic palpitations: premature ventricular contractions (PVCs) and premature atrial contractions (PACs). In this paper, we will look at the difference between PVCs and PACs, how to detect them in patients who are experiencing palpitations, what can cause them, and complications they can cause. Premature Ventricular Contractions are a premature or “extra beat” that take place in the ventricles. PVCs can also be called ventricular premature beats, premature ventricular complexes, and extrasystoles (Mayo
The Bridge to Transplant It is estimated that there are nearly 50,000 people around the world that are in need of heart transplants. The average wait time for a donor heart is four to six months. For a patient with end-stage heart failure, a ventricular assist device or total artificial heart may be viable options to serve as a bridge to heart transplantation (Trivedi, 2014). The symptoms of heart failure can be treated in several ways depending on the severity of illness. In early stages, non-invasive
Ventricular septal defect, where the septum has a “hole”, allowing blood to mix which creates dysfunctions within. The Overriding Aorta is that of which the aorta is between the left and ventricles, whereas in a healthy heart, the aorta is attached to the left ventricle. Pulmonary stenosis is where the pulmonary valve is much smaller, causing a lack of blood flow. The Right Ventricular Hypertrophy is where the muscle of the right ventricle is
after Victor Eisenmenger a man who had a patient who showed symptoms such as, breathing complications and skin that was turning a bluish color. The autopsy of this patient lead him to discover a ventricular septal defect [VSD] (El-Chami, 2014), that causes a hole in the wall on the right and left ventricular. This is the defect that begins when signaling for pulmonary artery hypertension, which progresses into more advanced stages of ES. This birth defect eventually causes patients to have various
appeared cyanotic few minutes after birth which instigated a series of medical examination. Cyanotic spells were observed when crying while on cardiac catheterization the baby was found to have tetralogy of fallot (TOF), pulmonary atresia, and ventricular septal defects with aorta lying over the septal defects. Baby J underwent surgery to repair the tetralogy of fallot. Two weeks after she develops chronic heart failure with laboratory investigations revealing metabolic acidosis and hyperglycemia
A very important reason for the New Zealand Medical Journal to consider nominating Ultrasound as the most important piece of medical equipment used today is because of its medical use in Fetal Echocardiography. When 3D ultrasound is used there are 3 steps that should be considered separately; volume acquisition, Glass-body with colour Doppler and Rendering. Firstly, 3D volume acquisition is a key technique that uses ultrasound when examining the fetal heart. This technique contains digital information
Background: Although ventricular septal defect (VSD) is the most common congenital heart disease, it is usually diagnosed late. The image of the disease is variable; sometimes it is so quit and silent that might even be healed and be improved spontaneously, and in some certain cases if the appropriate, on time and early treatment is not be done, this would lead to irreparable complications even in the early life period such as mortality. This study aimed to study, review and the way of diagnosis