When there’s a delay or obstruction along the pathway that electrical impulses travel to make the heart beat, bundle branch block occurs, which is usually a sign of another underlying heart problem and develops in people who appear healthy.
The electrical impulses that make the heart beat could be slowed or blocked due to injury or damage to the heart muscle or blockage of a blood vessel in the heart. This interference could cause ... more
A mass or growth of abnormal cells in the brain is called a brain tumor. Some brain tumors are benign and others are malignant. These brain tumors could either begin in the brain, a condition called primary brain tumor, or cancer can begin in other parts of the body and spread to the brain, a condition called secondary or metastatic brain tumor.
Each year, the number of diagnosed brain tumors is increasing for unknown reasons. ... more
The serious bone marrow disorder that disrupts the body's normal production of blood cells is called myelofibrosis. Weakness, severe anemia, fatigue, and often, an enlarged liver and spleen, are caused by the extensive scarring in the bone marrow that results from myelofibrosis.
This condition is also called agnogenic myeloid metaplasia or idiopathic myelofibrosis. Although it mainly develops after the age of 50, myelofibrosis can ... more
Also called petit mal seizure, absence seizure usually occurs in children. It involves a sudden but brief lapse of conscious activity, at which time the person may look like merely staring onto space for a few seconds.
Because of the danger of drowning, children with a history of absence seizure should be supervised carefully while swimming or bathing, they may also be prohibited from driving or other activities that could be hazardous. ... more
The west Nile virus, which is transmitted by mosquitoes, is common in areas such as West Asia, Africa and the Middle East. In some cases, a person infected with this virus might not experience any signs or symptoms, or he/she may experience only minor symptoms, such as a skin rash and headache. But in other cases, a life-threatening illness could be developed, which includes inflammation of the brain.The risk of getting West Nile virus ... more
When the electrical impulses in the heart that coordinate the heartbeats don't function properly and cause a person's heart to beat too fast, too slow or irregularly, heart rhythm problems (heart arrhythmias) occur.
Being a common problem, heart arrhythmias are usually harmless. Although most people have only occasional irregular heartbeats that feel like a fluttering or racing heart, however, some heart arrhythmias could end up ... more
