{"id":1656,"date":"2020-06-04T06:20:37","date_gmt":"2020-06-04T05:20:37","guid":{"rendered":"http:\/\/cosmos.ircam.fr\/?p=1656"},"modified":"2023-10-08T13:14:02","modified_gmt":"2023-10-08T12:14:02","slug":"little-etude-no4-the-girl-with-the-labile-t-waves","status":"publish","type":"post","link":"https:\/\/cosmos.isd.kcl.ac.uk\/?p=1656","title":{"rendered":"Little Etude N\u00ba4: The Girl with the Labile T Waves"},"content":{"rendered":"\n

N\u00ba4 of seven Little Etudes<\/a><\/strong> for beginner and intermediate piano players based on different cardiac electrophysiology aberrations for day 4 of WHRW2020: World Heart Rhythm Week<\/a><\/strong> (1-7 June 2020). Etude N\u00ba4 is based on a true story by Professor Emeritus of Cardiac Electrophysiology, Peter Taggart, who shared the story, “I remember a young girl who had labile T waves in her ECG. when someone made a loud noise behind her and  the T waves inverted within a few seconds.<\/em>“<\/p>\n\n\n\n

The T wave in the ECG is a marker of when the heart can beat again following a refractory period after the last heartbeat. It normally points in the same direction as the QRS (the heartbeat), but can invert due to cardiac or non-cardiac conditions. This little etude simulates the heartbeat and T waves, and the inversion of the T waves following a loud sound (the clap)! The heart rate is a little faster after the loud sound, but gradually slows to normal again.<\/p>\n\n\n\n

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