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Inhibition of SA Node at Supine Position in Right Atrial Thrombus Complicating Behçet’s Disease – From Cardiac Surgical Point of View

Emad Mohamed Hijazi, Rasheed Khaled Ibdah, Sukina Ismael Rawashdeh, Abdullah Mahmoud Saadeh, Hamzeh Ibrahim Al-Balas

(Division of Cardiac Surgery and Cardiology, Princess Muna AL-Hussein Cardiac Center, King Abdullah University Hospital and Jordan University of Science and Technology, Irbid, Jordan)

Am J Case Rep 2016; 17:412-416

DOI: 10.12659/AJCR.897998

BACKGROUND: Behçet’s disease (BD) is a chronic multi-systemic disease of unknown cause. Intra-cardiac thrombus (ICT) complicating BD is extremely rare. In general, cardiac manifestations in BD are associated with poor prognosis. Chest computed tomography (CT) scan and echocardiogram are excellent modalities for diagnosis and patient assessment. Cardiac surgical intervention can be done safely using an on-pump technique when medical management has failed.
CASE REPORT: We report on a case of a 27-year-old Jordanian woman diagnosed with BD who presented with dyspnea, cough, and hemoptysis, with supine bradycardia reaching 36 beats/minute and dizziness which disappear on sitting or standing position, and with heart rate reaching 76 beats/minute. Right atrial thrombus was identified using transthoracic echocardiogram and chest CT scan. After medical management failed, cardiac surgical intervention became an option and targeted extraction of the right atrial thrombus compressing the sinoatrial node (SA node).
CONCLUSIONS: In BD, right atrial thrombus compressing the SA node is rare. If conservative management has failed, cardiac surgical intervention removing the mechanical cause can be done safely, either using on-pump with cross clamp or on-pump with beating heart technique.

Keywords: Behcet Syndrome - complications, Adult, Heart Atria - surgery, Heart Diseases - surgery, Sinoatrial Node - physiopathology, Supine Position - physiology, Thrombosis - surgery

This paper has been published under Creative Common Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) allowing to download articles and share them with others as long as they credit the authors and the publisher, but without permission to change them in any way or use them commercially.
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