Actively Recruiting
Real-Time Dynamic Imaging Study of Normal Pharyngolaryngeal Structures During Barium Swallow (GLAM-III)
Led by Zhejiang Cancer Hospital · Updated on 2025-12-04
3
Participants Needed
1
Research Sites
15 weeks
Total Duration
On this page
AI-Summary
What this Trial Is About
The integrity and functional stability of pharyngolaryngeal anatomical structures are critical for airway management, and the dynamic changes of key structures (e.g., pyriform sinus, cricoid cartilage lamina) during swallowing directly relate to the design and clinical safety of laryngeal masks. This observational study aims to investigate the real-time dynamic changes and physiological movement patterns of normal pharyngolaryngeal structures during barium swallow using routine barium meal examination imaging. The findings will provide anatomical and physiological evidence for optimizing laryngeal mask design and improving its anatomical fit with the pharynx and larynx.
CONDITIONS
Official Title
Real-Time Dynamic Imaging Study of Normal Pharyngolaryngeal Structures During Barium Swallow (GLAM-III)
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Aged 18-75 years
- No history of pharyngolaryngeal surgery, trauma, or congenital malformation
- No swallowing dysfunction, pharyngolaryngeal inflammation, or neurological diseases affecting swallowing
- No recent use of drugs that affect muscle function such as muscle relaxants or anticholinergics
- Barium meal exam shows an unobstructed oropharyngeal-esophageal pathway
- Normal pharyngolaryngeal anatomy confirmed by initial imaging
- Scheduled for routine barium meal examination at Zhejiang Cancer Hospital for diagnosis
You will not qualify if you...
- Presence of diseases that may compress pharyngolaryngeal structures such as goiter or mediastinal mass
- Allergy to barium sulfate or any components of the barium suspension
AI-Screening
AI-Powered Screening
Complete this quick 3-step screening to check your eligibility
Trial Site Locations
Total: 1 location
1
Jiangling Wang
Hangzhou, Zhejiang, China, 310022
Actively Recruiting
Research Team
X
Xiaochun Jin, M.D
CONTACT
J
Jiangling Wang, Ph. D
CONTACT
How is the study designed?
Study Type
OBSERVATIONAL
Masking
N/A
Allocation
N/A
Model
N/A
Primary Purpose
N/A
Number of Arms
0
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