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Completed

NCT Number: NCT02768350

Efficacy and Ventilatory Responses to VHI in Atelectasis Patients

The purpose of this study include (1) To investigate the efficacy of ventilator hyperinflation technique to re-expand lung atelectasis on patients with critical trauma who intubated and mechanical ventilation in the intensive care unit, (2) To investigate the effectiveness of ventilator hyperinflation technique to improve airway clearance on patients with critical trauma in the intensive care unit, and (3) To explore the acute responses of ventilatory functions to ventilator hyperinflation technique on patients with critical trauma who intubated and mechanical ventilation in the intensive care unit.

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Key information

Conditions

Atelectasis Lung Diseases Pulmonary Atelectasis Respiratory Tract Diseases

Age range

18 year–60 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Khon Kaen University

Khon Kaen, 40002, Thailand

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Critical trauma patients with pulmonary complications who were intubated and mechanical ventilation and have a diagnosis of lobar atelectasis and/or plate-like atelectasis (atelectasis demonstrated on chest X-ray) will be considered for inclusion. For the sign of plate-like atelectasis will be persist on chest X-ray for 2 day
  • The injuries may occur alone or combination of these injuries: 1) head injury, 2) chest injuries, including broken ribs, with or without hemothorax, pneumothorax and hemopneumothorax with intercostal chest drainage (ICD), 3) blunt abdominal, and 4) fracture of the limbs and/or spine.

Exclusion criteria

  • acute respiratory distress syndrome (ARDS)
  • acute lung injury (ALI)
  • pulmonary contusion
  • undrained pneumothorax, hemothorax, and hemopneumothorax
  • bronchospasm
  • pulmonary bullae/blebs
  • lung tumors
  • lung abscess
  • haemoptysis
  • mean arterial pressure (MAP) <70 mmHg
  • positive end expiratory pressure (PEEP) >6 cmH2O
  • heart rate (HR) >140 beats/min
  • blood pressure (BP) <90/60 or >180/100 mmHg
  • restlessness
  • oxygen saturation (SpO2) <90%
  • spontaneous respiratory rate (RR) >35 beats/min

Treatment and study plan

Ventilator hyperinflation technique

Procedure

Hyperinflation using a ventilator or "ventilator hyperinflation technique (VHI)" was developed from the manual hyperinflation (MHI) technique. There is no need to disconnect the patient when using the VHI technique and consequently there is no loss of PEEP and little or no risk of the adverse effects associated with MHI.

Conventional treatment

Procedure

Conventional treatments are the routine treatment that patients were received from the physical therapist who take care them. The routine treatments are consist of chest physical therapy techniques (i.e. vibration, positioning, etc.) and others treatment (i.e. passive movement).

Primary outcomes

  1. Change from Baseline in Chest Radiography

    Time frame: "Change from Baseline in Chest Radiography at Day 1 after Received Intervention (VHI)" and "Change from Baseline in Chest Radiography at Day 3 after Received Intervention (VHI)"

    The study took three day, chest radiography will be taken at 2 day before the study begin (first film; base line) and after day 1 (second film) and day 3 of the study (third film).

    Any improvement will be assessed by comparing the second and the third film to the first film by a radiologist who will be blinded to the treatment given.

    Atelectasis will grade using the following rating scale: 0 = no atelectasis; 1 = plate-like atelectasis; 2 = mild lobar collapse; 3 = moderate lobar collapse; and 4 = complete lower lobar collapse. Separate results will comply for the left and right lungs.

Secondary outcomes

  1. Change from baseline in respiratory rate (RR) at during and end of ventilator hyperinflation technique (VHI)

    Time frame: Within 10 minutes before VHI, 8 minutes during VHI and 10 minute after VHI.

    Data will be recorded at 09.00, 09.02, 09.04, 09.06, 09.08, and 09.10 am for pre-intervention period, at 09.12, 09.14, 09.16, and 09.18 am for during intervention period (4 set of 6 VHI breath; each set take time about 2 min), and at 09.20, 09.24, 09.26, 09.28, and 09.30 am for post-intervention period.

    Data will be repeated record at the same time on day 2 and 3. Respiratory rate (RR) will be recorded from the display of mechanical ventilator.

  2. Change from baseline in tidal volume (VT) at during and end of ventilator hyperinflation technique (VHI)hyperinflation technique (VHI)

    Time frame: Within 10 minutes before VHI, 8 minutes during VHI and 10 minute after VHI.

    Data will be recorded at 09.00, 09.02, 09.04, 09.06, 09.08, and 09.10 am for pre-intervention period, at 09.12, 09.14, 09.16, and 09.18 am for during intervention period (4 set of 6 VHI breath; each set take time about 2 min), and at 09.20, 09.24, 09.26, 09.28, and 09.30 am for post-intervention period.

    Data will be repeated record at the same time on day 2 and 3. Respiratory rate (RR) will be recorded from the display of mechanical ventilator.

  3. Change from baseline in minute ventilation (VE) at during and end of ventilator hyperinflation technique (VHI)technique (VHI)hyperinflation technique (VHI)

    Time frame: Within 10 minutes before VHI, 8 minutes during VHI and 10 minute after VHI.

    Data will be recorded at 09.00, 09.02, 09.04, 09.06, 09.08, and 09.10 am for pre-intervention period, at 09.12, 09.14, 09.16, and 09.18 am for during intervention period (4 set of 6 VHI breath; each set take time about 2 min), and at 09.20, 09.24, 09.26, 09.28, and 09.30 am for post-intervention period.

    Data will be repeated record at the same time on day 2 and 3. Respiratory rate (RR) will be recorded from the display of mechanical ventilator.

  4. Change from baseline in oxygen saturation (SpO2) at during and end of ventilator hyperinflation technique (VHI)hyperinflation technique (VHI)technique (VHI)hyperinflation technique (VHI)

    Time frame: Within 10 minutes before VHI, 8 minutes during VHI and 10 minute after VHI.

    Data will be recorded at 09.00, 09.02, 09.04, 09.06, 09.08, and 09.10 am for pre-intervention period, at 09.12, 09.14, 09.16, and 09.18 am for during intervention period (4 set of 6 VHI breath; each set take time about 2 min), and at 09.20, 09.24, 09.26, 09.28, and 09.30 am for post-intervention period.

    Data will be repeated record at the same time on day 2 and 3. Respiratory rate (RR) will be recorded from the display of mechanical ventilator.

  5. Change from baseline in dynamic lung compliance (Cdyn) at during and end of ventilator hyperinflation technique (VHI)

    Time frame: Within 10 minutes before VHI, 8 minutes during VHI and 10 minute after VHI.

    Data will be recorded at 09.00, 09.02, 09.04, 09.06, 09.08, and 09.10 am for pre-intervention period, at 09.12, 09.14, 09.16, and 09.18 am for during intervention period (4 set of 6 VHI breath; each set take time about 2 min), and at 09.20, 09.24, 09.26, 09.28, and 09.30 am for post-intervention period.

    Data will be repeated record at the same time on day 2 and 3. Respiratory rate (RR) will be recorded from the display of mechanical ventilator.

  6. Change from baseline in end-tidal pressure of carbon dioxide (PETCO2) at during and end of ventilator hyperinflation technique (VHI)

    Time frame: Within 10 minutes before VHI, 8 minutes during VHI and 10 minute after VHI.

    Data will be recorded at 09.00, 09.02, 09.04, 09.06, 09.08, and 09.10 am for pre-intervention period, at 09.12, 09.14, 09.16, and 09.18 am for during intervention period (4 set of 6 VHI breath; each set take time about 2 min), and at 09.20, 09.24, 09.26, 09.28, and 09.30 am for post-intervention period.

    Data will be repeated record at the same time on day 2 and 3. Respiratory rate (RR) will be recorded from the display of mechanical ventilator.

  7. Change from baseline in peak inspiratory pressure (PIP) at during and end of ventilator hyperinflation technique (VHI)

    Time frame: Within 10 minutes before VHI, 8 minutes during VHI and 10 minute after VHI.

    Data will be recorded at 09.00, 09.02, 09.04, 09.06, 09.08, and 09.10 am for pre-intervention period, at 09.12, 09.14, 09.16, and 09.18 am for during intervention period (4 set of 6 VHI breath; each set take time about 2 min), and at 09.20, 09.24, 09.26, 09.28, and 09.30 am for post-intervention period.

    Data will be repeated record at the same time on day 2 and 3. Respiratory rate (RR) will be recorded from the display of mechanical ventilator.

  8. Change from baseline in arterial blood gases (ABG) at end of ventilator hyperinflation technique (VHI)

    Time frame: Within one hour before VHI and 10 minute after VHI.

    Data will be recorded at 08.00 and 09.10 am for pre-intervention and post-intervention, respectively.

    Five milliliter of arterial blood will be collected from arterial line (A-line) for the analysis of arterial blood gases analysis (ABG).

  9. 24 hour sputum collection

    Time frame: The secretion will be collected 24 hours in each day.

    Endotracheal/tracheal suction will take at 08.30, 09.35, 11.00, 13.00, 15.00, 17.00, 19.00, 21.00, 23.00, 01.00, 03.00, 05.00, and 07.00 (24 hour). Sputum volume and wet weight at each time's collect will accumulate to represent for 24 hour sputum collection.

    The mucus secretion will be collected by nursing staff using sterile suctioning technique via tracheostomy (TT) or endotracheal (ET) tube, without adding any saline or sterile water.

  10. Clearance index

    Time frame: Sputum content that collects at 08.30 and 09.35 will test by cough transportability method and compare between time point for represent the clearance index (at 08.30 for pre-intervention period and at 09.35 for post-intervention period).

Sponsors and collaborators

Lead sponsor

Khon Kaen University

Other

Registry information

Official study title

Efficacy and Ventilatory Responsiveness of Ventilator Hyperinflation Technique to Re-expand Lung Atelectasis and Improved Airway Clearance on Patients With Critical Trauma Who Are Intubated and Mechanically Ventilated

Important dates

Study start
2016
Primary completion
2018
Study completion
2018
First posted
May 11, 2016
Registry last updated
Mar 9, 2018

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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