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Nasopharyngeal dimensions in normal individuals: normative data.

Laryssa Lopes de Araújo1, Andressa Sharllene Carneiro da Silva2, Bruna Mara Adorno Marmontel Araújo2

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This study establishes normative values for minimum cross-sectional nasopharyngeal area (NPA) across age groups. Results show no significant differences in NPA among children, adolescents, and adults without craniofacial anomalies.

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Area of Science:

  • Otolaryngology
  • Pediatric Medicine
  • Medical Imaging

Background:

  • The nasopharyngeal area (NPA) is crucial for respiration.
  • Establishing normative NPA values is essential for diagnosing obstructions.
  • Previous studies have not comprehensively assessed NPA across diverse age groups.

Purpose of the Study:

  • To determine normative minimum cross-sectional nasopharyngeal area (NPA) values.
  • To analyze NPA variations across different age ranges in healthy individuals.
  • To provide reference data for clinical diagnosis of nasopharyngeal conditions.

Main Methods:

  • Evaluated 96 healthy individuals across four age groups (6-59 years).
  • Assessed minimum cross-sectional nasopharyngeal area (NPA) using modified anterior rhinomanometry (pressure-flow technique).
  • Utilized the PERCI-SARS system for precise NPA measurements.

Main Results:

  • Mean NPA values were consistent across all age groups: G1 (children) 1.025±0.054cm², G2 (adolescents) 1.055±0.081cm², G3 (young adults) 1.050±0.083cm², and G4 (middle-aged adults) 1.054±0.081cm².
  • No statistically significant differences in NPA were observed between the four age groups.
  • This indicates NPA remains stable throughout development and adulthood in healthy individuals.

Conclusions:

  • Normative data for minimum cross-sectional nasopharyngeal area (NPA) were successfully established.
  • These values serve as a valuable reference for clinical practice and research.
  • The findings are particularly relevant for diagnosing nasopharyngeal obstruction in individuals with or without craniofacial anomalies.