What is Vng/videonystagmography And Why do You Need It?
Vertigo is a common condition that is experienced by everyone once in a lifetime irrespective of age and gender. Vertigo is generally accompanied by dizziness, nausea & vomiting. Leading an active life with vertigo is quite a tough task. Sudden bouts of vertigo spells create hindrance in accomplishing day to day activities. Abnormal jerking of eyes, sweating, headaches, spinning sensations, etc. are some of the common symptoms of vertigo. Vertigo is generally referred to as inflammation or disorder in the vestibular nerve, inner ear or head. A person suffering from vertigo may feel woozy all of a sudden and experience a spinning sensation where nearby surroundings seem to spin around or a person may experience spinning himself. Mild vertigo can be treated well at home by practicing certain repositioning maneuvers and following some vertigo home remedies. Consulting an expert neurologist is recommended if the symptoms don’t settle with vertigo exercises and home remedies. Your doctor will carry a VNG test for vertigo to diagnose the underlying cause of vertigo. What is VNG (Videonystagmography)? VNG stands for videonystagmography , which is the most advanced technology in medical science. VNG tests are carried out by doctors for analyzing eye movements, the inner ear & portions of the brain. VNG test can be used to track and measure the involuntary eye movements known as nystagmus. VNG test will diagnose the eye movements whether it’s slow, fast or steady. Abnormal eye jerking or movement happens when the brain receives confusing signals from the inner ear, which makes the person feel dizzy or off balance. Nystagmus or involuntary eye movements can be simply caused while moving your head or while looking at some patterns. If you experience involuntary eye movements even when you don’t move your head it indicates inflammation or disorder of the vestibular system. The brain communicates to the body and signals are sent to the brain through a vestibular nerve. Your vestibular system comprises of organs, nerves, and structures that are in your inner ear. An inflammation in vestibular nerve results in sending confusing signals to the brain making you feel dizzy or lose balance. Nowadays doctors use VNG to examine the underlying cause of dizziness, vertigo or balance issues. Patient cooperation is a must for carrying out the VNG test successfully as the VNG test takes about two hours to complete the process. Just calm down while you are undergoing a VNG test. When a patient is going through VNG test special goggles are placed over the eyes to record eye movements. An expert doctor will ask you to lie in certain positions to record eye movements. During the VNG test, the patient’s inner ears are stimulated with warm and cool air to measure their response to the test. A person may feel dizzy during the test but the dizziness will subside within no time. VNG test is performed in a dark room or in a low lighting room. It is counted as one of the best medical tests that evaluate the underlying causes of dizziness, vertigo or imbalance issues in a patient. Why VNG is used? VNG helps in diagnosing the inflammation or disorder in the vestibular system that is responsible for sending signals to the brain. The blockage in the vestibular system sends confusing signals to the brain which makes the person feel dizzy or lose balance. Calcium crystals deposited in the inner ear in BPPV Vertigo and the fluid buildup in Meniere disease is responsible for the blockage in the vestibular nerve. VNG tests help in diagnosing the underlying cause of disequilibrium. Why do you need a VNG (videonystagmography)? If you are experiencing sudden strokes of vertigo dizziness now and then, your doctor will suggest you undergo VNG. It is the best test to diagnose the underlying condition of vertigo. It helps in diagnosing inflammation or disorder in the vestibular system. Dizziness, vertigo, lightheadedness or a feeling like you are going to faint are some of the common symptoms that demand to undergo VNG tests. A person may even experience other symptoms like involuntary eye movements that go side to side or up and down known as Nystagmus, Ringing in the ears (tinnitus), and Feeling of fullness or pressure in the inner ear while experiencing the vestibular disorder.