Double auricles of the right atrium: a unique anatomic deformity
© Tagarakis et al; licensee BioMed Central Ltd. 2011
Received: 3 November 2010
Accepted: 19 April 2011
Published: 19 April 2011
Anatomic deviations, especially those detected during the course of an operation, are medically intriguing, as they raise concerns about their clinical significance and putative complications.
We present, to our knowledge, for the first time a case of an anatomic deviation in the form of a second right atrial auricle in a 70 year-old, coronary bypass-operated male Caucasian patient of Greek origin. No complications were noted intra-or postoperatively.
A second right atrial auricle was found intraoperatively, without causing any clinical complications, or obstructing the normal course of a surgical procedure.
The auricles of the right and left atrium are prominent anatomic structures of the heart. The anatomic area of the right atrial auricle, which lies in the proximity of the basic rhythm center of the heart, the sinus node, is used for the venous cannulation of the heart before the extracorporeal circulation is entered. To date, no important deformities have been reported in regards to this anatomic formation. The presence of a second atrial auricle, which is presented herein, is to our knowledge, the first reported in the medical literature.
As far as the echocardiography diagnosis is concerned, only extra focus based on an augmented clinical suspicion can lead the examiner to specifically investigate the existence of such a deviation. It is the intraoperative confirmation that will definitely provide the proof for the existence of a second right atrial auricle.
Based on the aforementioned data, the occurrence of the double auricles of the right atrium did not provoke any clinically relevant complications and was not associated with any other genetic, anatomic, or pathophysiological disorders. Its presence did not hinder neither hemodynamically nor functionally the outcome of the operation. More light will be shed in regards to the etiology and clinical importance of double auricles of the right atrium as similar cases might be presented in the future.
Written informed consent was obtained from the patient for publication of this case report and accompanying images. A copy of the written consent is available for review by the Editor-in-Chief of this journal.
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- The pre-publication history for this paper can be accessed here:http://www.biomedcentral.com/1471-2261/11/17/prepub
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