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A coma is defined as a state of unconsciousness that lasts for an indefinite period of time. When a person is in a coma, they cannot be awakened by external stimuli, including pain. Depending on the type of coma, a person may be semi-conscious, completely unconscious, or permanently unconscious. Dr. Seth Tuwiner is a board-certified neurologist with extensive experience in diagnosing and treating patients who have experienced a coma. Call (703) 293-5244 to schedule an appointment today!
Entering a comatose state is uncommon and caused by brain trauma. Comas are usually side effects of:
While the term “coma” is widely known, very few people understand that there are different types of comas. They are typically categorized in six ways:
When the kidneys or other organs fail, the body fails to dispose of any toxins correctly. This toxic level of substance can cause brain function to be disrupted and send an individual into a coma.
When there’s an injury to the brain because of a lack of oxygen, the brain experiences cell death. Usually, this is caused by electric shock, drowning, respiratory/cardiac arrest, drug use/poisoning, or suffocation. When someone experiences cerebral hypoxia, or anoxic brain damage, they will usually lose consciousness immediately, and an ambulance should be called. Sometimes, the person who suffered a cerebral hypoxia will wake up before professional help arrives, but they may have hallucinations, coordination problems, or memory loss.
A person may be awake, but they are not capable of voluntary movement or proper brain function. For example, they may be able to have sleep cycles, breathe, and their blood will circulate, but they won’t be able to think, move, speak, etc.
While rare, Locked-In Syndrome means a person can move only their eye muscles, but has mostly normal brain function.
Brain death, as the name suggests, is the ending of all function in the brain.
When a person’s brain swelling needs to be controlled, they may be put into a medically induced coma in an ICU to prevent the injured brain from dying.
Recovering from a coma isn’t always possible and each case is completely different. The brain is an incredibly complicated organ, thus, it is difficult to predict when, or if, someone will awaken from a coma. However, while in a coma, the patient will be looked after in an intensive care unit, and sometimes will require full life support until the situation improves.