A Study to Compare Transverse Diagnostic Methods in Pediatric Patients After Polysomnogram for Diagnosis of Obstructive Sleep Apnea


About this study

The primary purpose of this study is to analyze maxillary transverse dimensions in children who have completed polysomnography (PSG), using McNamara’s Criteria and Andrew’s Six Elements.

Participation eligibility

Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. There is no guarantee that every individual who qualifies and wants to participate in a trial will be enrolled. Contact the study team to discuss study eligibility and potential participation.

Inclusion Criteria:

  •  Any pediatric patient between the ages of 7 to 17 years old.
  • First permanent molars must be in occlusion (first permanent molars should be in occlusion to exclude ambiguity of their position).
  • All patients must complete a baseline PSG study.
  • Patients of any race, gender, ethnicity and sex.
  • Patients with and without adenoid/tonsils will be included.

Exclusion Criteria: 

  • Patients with previous expansion or other orthodontic treatment.
  • Patients with craniofacial syndromes or craniosynostosis forms.
  • Patients with nasal abnormalities such as polyps, etc.
  • Patients with first permanent molars not in occlusion.

Participating Mayo Clinic locations

Study statuses change often. Please contact the study team for the most up-to-date information regarding possible participation.

Mayo Clinic Location Status Contact

Rochester, Minn.

Mayo Clinic principal investigator

Chad Rasmussen, D.D.S.

Open for enrollment

Contact information:

Chad Rasmussen D.D.S.



More information


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