Research
RCPD is young as a recognized diagnosis, but the evidence base is growing fast. Here are key peer-reviewed papers and clinician talks — useful reading to bring to an appointment.
Papers
2019 · Bastian & Smithson
In 51 patients who had long suffered without a clear diagnosis, a targeted botulinum toxin injection into the cricopharyngeus confirmed RCPD, and all 51 were able to burp afterwards — the paper that put the condition on the map.
Read the paper →2024 · Miller, Lina & Akst
A clear overview of how the upper esophageal sphincter works, why RCPD is hard to diagnose, and current treatments — plus how patient communities drove awareness.
Read the review →2024 · Malhotra et al.
Pooling 17 studies and 637 patients, this review finds botulinum toxin injections (often 50 units) and, when needed, cricopharyngeal myotomy offer effective relief.
Read the review →2021 · Karagama
Examines the diagnostic challenges of R-CPD and shows how targeted botulinum toxin injections offer lasting relief and meaningfully improve quality of life.
Read the paper →Watch
Laryngopedia
Dr. Robert Bastian covers the common questions about RCPD symptoms, diagnosis, and treatment.
Watch the video →Laryngopedia
A comprehensive webinar on the symptoms, diagnosis, and treatment of RCPD.
Watch the webinar →Michael Pitman, MD
Dr. Michael Pitman explains the symptoms, diagnosis, and treatment options for RCPD.
Watch the video →Laryngopedia · Playlist
A curated playlist of clinical videos and webinars offering a fuller overview of the condition.
View the playlist →