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Zhou Hao Leong

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Articles

Retrograde Cricopharyngeal Dysfunction: Patient Characteristics and Outcomes in Australia

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By Sarah Emmett, Thomas Stewart, Zhou Hao Leong, Katrina Sandham
| Wiley Online Library Verified
1 Introduction Retrograde cricopharyngeal dysfunction (RCPD) is a relatively new diagnosis characterised by an inability to burp [1]. The pathophysiology of this condition is thought to be a failure of the Cricopharyngeus muscle (CP) relaxation when there is distension of the upper oesophagus; the CP otherwise relaxes normally during swallowing [2]. The typical first-line management of this condition is injection of Botulinum A toxin (BonT-A) into the cricopharyngeus (CP) muscle [3].
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