DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY
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Transoesophageal echocardiography. Anaesthetist monitoring a transoesophageal echocardiography screen. This non-invasive technique is being used to monitor cardiac output during surgery. A drop in cardiac output can lead to a fatal drop in blood pressure and prevent sufficient oxygen delivery around the body.
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