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Updated: Aug 9, 2026

Transthoracic Echocardiography in Mice
Published on: May 28, 2010
Induction of wide QRS tachycardia during transthoracic echocardiography
1Department of Pediatrics, University of Texas Medical Branch, Galveston 77550.
Abstract:
A wide QRS tachycardia was repeatedly triggered during transthoracic echocardiographic examination in a critically ill premature infant with bilateral chest tubes. The left-sided tube was anterior to the heart. The arrhythmia was not induced after removal of the chest tubes at the follow-up ultrasonographic evaluation. Compression of the thoracic wall and chest tube, and subsequently the heart, by the ultrasound transducer is postulated as the cause for this wide QRS tachycardia.
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