EEG Monitor
Electroencephalogram Monitor · Processed EEG Monitor · BIS Monitor · Bispectral Index Monitor · EEG Monitoring
A small screen unit that clamps to a pole or the anesthesiaan-us-THEE-zhuhLoss of feeling or sensation, often brought on by drugs so that surgery or a procedure can be done without pain.an- withoutesthesi/o feeling, sensation-ia conditionFull entry machine and reads brain waves through adhesive sensors on the patient's forehead. It shows the electroencephalogramih-lek-troh-en-SEF-uh-loh-gramA test that records the electrical activity of the brain through small sensors placed on the scalp.electr/o electricityencephal/o brain-gram recordFull entry tracing and, on processed EEG units such as BIS, a single number for depth of anesthesia.
On the table
What it does, the lengths it comes in and what experienced techs know about it.
What it’s for
anesthesiaan-us-THEE-zhuhLoss of feeling or sensation, often brought on by drugs so that surgery or a procedure can be done without pain.an- withoutesthesi/o feeling, sensation-ia conditionFull entry uses it to judge how deep the anesthetican-us-THET-ikA drug that causes loss of feeling, with or without loss of consciousness.an- withoutesthesi/o feeling, sensation-ic relating toFull entry is and lower the risk of awareness. In cardiac and aortic arch surgery it is part of brain monitoring during hypothermiahy-poh-THER-mee-uhA body temperature that has fallen below the normal range.hypo- belowtherm/o heat-ia conditionFull entry and circulatory arrest, where it can show ischemiais-KEE-mee-uhToo little blood flow to a part of the body, so the tissue does not get enough oxygen.isch- hold back-emia blood conditionFull entry , seizureSEE-zherA sudden burst of abnormal electrical activity in the brain that changes movement, feeling, behavior or awareness.Full entry and burst suppression. It can also be used in neurosurgery to catch early signs of brain ischemia.
Lengths and variants
Two-channel units read one side of the forehead; four-channel units read both sides and can show differences between the two hemispheres.
What experienced techs know
What techs who reach for it every day know about it.Pro
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4 sources
- Goldman MA. Pocket Guide to the Operating Room. 3rd ed. Chapter 4 (Anesthesia Modalities), p. 59
- Chapter 22 (Cardiac Surgery), p. 513
- 2024 EACTS/EACTAIC/EBCP Guidelines on cardiopulmonary bypass in adult cardiac surgery, section 6.2.2 (Depth of anaesthesia monitoring)
- somatechnology.com
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