Geneva, Aug. 6 -- International Clinical Trials Registry received information related to the study (DRKS00041127) titled 'Retrograde Cricopharyngeal Dysfunction: case series and literature review of patients treated with Botulinum Toxin A' on July 28.
Study Type: observational
Study Design:
Allocation:
Masking:
Control:
Assignment:
Study design purpose: treatment
Primary Sponsor: Uniklinikum Dusseldorf
Condition:
Retrograde Cricopharyngeal Dysfunction
Intervention:
Group 1: Retrospective observational cohort of patients diagnosed with retrograde cricopharyngeal dysfunction (RCPD) who underwent transoral endoscopic injection of 50 units of botulinum toxin A into the cricopharyngeus muscle at a single tertiary academic center. All p...