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Study identifier: NCT06331819 Synced from ClinicalTrials.gov · July 29, 2026
● Recruiting

Clinical Association Between Obstructive Sleep Apnea, Facial Pigmentation, and Vasovagal Symptoms.

Condition: Obstructive Sleep Apnea · Vasovagal Syncope · Smoking  ·  Sponsor: Jordan Collaborating Cardiology Group

PhaseN/A
Planned participants200
Who can joinAll sexes, 18 Years to no upper limit
Healthy volunteersNo

About this study

The goal of this prospective cohort study is to study patients referred for sleep study by in-lab polysomnography in the Jordan University Hospital and the Jordan Hospital or with an at-home sleep study kit. The main aims are: * To prospectively obtain demographic and clinical information of patients referred for a sleep study. * To determine the diagnostic value of facial discoloration as potential marker for obstructive sleep apnea to increase detection rate for the condition. * To establish a correlation between obstructive sleep apnea and vasovagal symptoms with resulting increased smoking tendency and study the effect of treatment on the disorders. * To determine the association between timing of appearance of obstructive sleep apnea symptoms and initiation of smoking.

This description comes directly from the study's public registry record.

Talk to the study team

Rand M Zaqqa  ·  00962799550746  ·  rand.zaqqa@outlook.com

Ayah M Zaqqa, MD  ·  00962795940252  ·  ayahzaqqa@hotmail.com

Always discuss trial participation with your own doctor first.

Locations (1)

The University of JordanAmman, JordanRecruiting

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Source record: clinicaltrials.gov/study/NCT06331819