Pulmonary & Respiratory Medicine

André Frota Müller

Publications

• Research Article
  Real-Time Measurement of Maximal Voluntary Breath-Holding Time in Patients with Obstructive Ventilatory Defects and Normal Controls
  Author(s): Raqueli Biscayno Viecili, Denise Rossato Silva, Paulo Roberto S. Sanches, André Frota Müller, Danton Pereira da Silva and Sérgio Saldanha Menna Barreto and Saldanha Menna BarretoRaqueli Biscayno Viecili, Denise Rossato Silva, Paulo Roberto S. Sanches, André Frota Müller, Danton Pereira da Silva and Sérgio Saldanha Menna Barreto and Saldanha Menna Barreto
  
  Background: Breath-holding test has been tested in some clinical scenarios and has proved to be of clinical utility. Objectives: To determine the maximum voluntary breath-holding time in patients with obstructive ventilator defects and in normal subjects and to correlate the breath-holding times with pulmonary function tests. Methods: We conducted a case-control study including patients with obstructive ventilator defects and a control group consisted of volunteers recruited in the same hospital, with normal spirometry. Spirometry was performed using a computerized spirometer. Breath-holding test was conducted using a pneumotachograph. All measured outputs were displayed in real time on a portable computer. The maximal voluntary apnea inspiratory and expiratory times (MVAIT and MVAET) were measured. Results: A total of 35.. Read More»
  DOI: 10.4172/2161-105X.1000127

  Abstract PDF