Dr. John David Nerva MD

What is an aneurysm?An aneurysm is the abnormal ballooning, widening, or bulging of a part of the artery usually caused by arterial wall weakness. When an aneurysm enlarges and ruptures, disastrous consequences, such as internal bleeding, usually happen.Aneurysms are usually found in the aorta (the...

Transorbital LobotomyTransorbital lobotomy was once considered as a form of neurosurgery that was labeled as "insane". A pioneer in this field was a Portuguese doctor named António Egas Moniz. He introduced frontal lobotomy in 1935 for certain cases of psychosis and won a Nobel Prize because of...

Your doctor will first attempt to give you other alternative treatments before recommending surgery. If your back pain still persists after treatment, your doctor may suggest for surgery as one of the solutions. Laminectomy is the most probable surgical procedure that you will have to undergo.Facts...

What Is a Laminectomy?The lamina is the back part of your vertebra covering the spinal canal. Your doctor could decide to eliminate your lamina or the bone spurs around it when either causes compression of your spinal cord or the roots of your nerves. Pressure on the roots of your nerves can cause:...

Doctors or physicians are categorized according to different factors including medical specialties and subspecialties. Most doctors specialize in a specific area of medicine. This article provides a summary of the different types of doctors in the medical field. AllergistsAllergists are also...

Normal pressure hydrocephalus (NPH) is a type of brain disorder, wherein excess cerebrospinal fluid builds up in the ventricles of the brain. It causes problems in reasoning, thinking, difficulty in walking, and loss of bladder control.Brains ventricles are hollow fluid-filled chambers. Even...