Post-Polio Syndrome

A. Definition Post-polio syndrome (PPS, or post-poliomyelitis syndrome or post-polio sequelae) is a condition that affects approximately 25–50% of people who previously contracted poliomyelitis—a viral infection of the nervous system—after the initial infection. It is considered a “new” condition as opposed to a relapse or return of polio. Typically the…

Peripheral Neuropathy

A. Definition Peripheral neuropathy is disorder of nerves, apart from the brain and spinal cord. It often causes weakness, numbness, and pain, usually in your hands and feet, but also may occur in other areas of your body. It can impair sensation, movement, gland or organ function, or other aspects…

Parkinson’s Disease

Definition Parkinson's Disease (PD) is a chronic, progressive, and degenerative disease of the nervous system that affects movement. It is due to the malfunction and death of nerve cells in the brain, called neurons. Some of these dying neurons produce dopamine, a chemical that sends messages to the part of…

Organ Transplants

Definition Organ transplantation is the process of moving an organ from one person’s body to another, or from a donor site to another location on the patient’s own body. The emerging field of regenerative medicine is allowing scientists and engineers to create organs to be re-grown from the patient's own…

Obesity

A. Definition Obesity is a complex medical condition defined by an excessive amount of body fat accumulated to the extent that it may have a negative impact on your health and/or life expectancy. In 2013, the American Medical Association classified obesity as a disease. In Western countries, people are considered…

Non-Healing Fractures

A. Definition Nonunion is the permanent failure of healing following a broken bone. It is a serious complication of a fracture and may occur when the fracture moves too much, has a poor blood supply or gets infected. Bone disease, i.e., bone cancer, also can prevent healing. Malunion is a…

Multiple Sclerosis

A. Definition Multiple sclerosis (MS) is an unpredictable, often disabling, disease in which your immune system attacks the protective myelin sheath that covers your nerves. Myelin damage disrupts the flow of information between your brain and the rest of your body. With MS, the tissues that come under attack are…

Mental Disorders

A. Definition A mental disorder, also called a mental illness or a psychiatric disorder, is a mental or behavioral pattern or anomaly that causes suffering and/or a diminished ability to cope with the ordinary demands of life. It is a medical condition that disrupts thinking, mood, the ability to relate…

Ménière’s Disease

A. Definition Ménière’s disease, also called endolymphatic hydrops, is a disorder of the inner ear that causes spontaneous episodes of rotary vertigo, along with fluctuating hearing loss, tinnitus, and a feeling of pressure within the ear. It was named after the French physician, Prosper Ménière, who, in 1861, was the…

Lupus erythematosus

A. Definition Systemic lupus erythematosus (also known as SLE) is a chronic inflammatory disease that occurs when your body's immune system attacks your own tissues and organs. Inflammation caused by Lupus can affect many different body systems, including your joints, skin, kidneys, blood cells, brain, heart, and lungs. Lupus erythematosus…