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Rhinopharyngeal Retrograde Clearance is Effective to Adequate Upper Airways Function in Adults

NCT01976039 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 24

Last updated 2018-04-19

No results posted yet for this study

Summary

Professionals working in polluted areas may present increased clinical airways symptoms and dysfunction. Rhinopharyngeal retrograde clearance (RRC) has been used to improve mucus clearance in infants with bronchitis and bronchiolitis, and instillation the nasal cavity with saline has been used to reduce nasal inflammation in rhinitis and sinusopathies. The aim of this study was to assess the effects of RRC and RCC combined with saline (RRC+S) on nasal mucociliary clearance (MCC), mucus surface property, cellularity and airways symptoms in professional motorcyclists.

Conditions

  • Nasal Obstruction
  • Exposure to Pollution

Interventions

OTHER

rhinopharyngeal retrograde clearance (RRC)

The rhinopharyngeal retrograde clearance is a respiratory physical therapy technique that uses a forced inspiratory maneuver to clear the nasopharynx with the aid of saline instillation

Sponsors & Collaborators

  • Fundação de Amparo à Pesquisa do Estado de São Paulo

    collaborator OTHER_GOV

  • Conselho Nacional de Desenvolvimento Científico e Tecnológico

    collaborator OTHER_GOV

  • University of Sao Paulo

    lead OTHER

Principal Investigators

  • Naomi K Nakagawa, PhD · University of Sao Paulo

  • Paulo HN Saldiva, PhD · University of Sao Paulo

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
TRIPLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
45 Years
Sex
MALE
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2012-07-31
Primary Completion
2012-08-31
Completion
2012-08-31

Countries

  • Brazil

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT01976039 on ClinicalTrials.gov