Sustained Lung Inflation and Pulmonary Mechanics in Preterm Infant

NCT02493920 | Withdrawn

• 1 other identifier: MECCANICA SLI
• Study Type: interventional
• Target: N/A
• Locations: 0 countries
• Sites: N/A

Brief Summary

Lung protection should start in the delivery room where, from the first breaths, the preterm infant can be helped to clear the lung fluid and to recruit alveolar spaces and establish the functional residual capacity (FRC). Sustained lung inflation (SLI) applied at birth in the delivery room has been demonstrated to lead to clearance of lung fluid and achievement of a precocious functional residual capacity (FRC) both in animal and human studies. SLI associated to an adequate positive end expiratory pressure (PEEP) may help the efficacy of the respiratory effort in lung of preterm infants at risk for respiratory distress syndrome (RDS) and reduce need of mechanical ventilation (MV). Further studies are required to evaluate the clinical utility of this maneuver. The ability to monitor what happens to the lungs while applying different recruitment maneuvers in preterm infants would allow the definition of a procedure that allows optimal assistance to improve the FRC. One promising approach is provided by the forced oscillation technique (FOT). During forced oscillations, a small amplitude sinusoidal pressure stimulus is applied to the airway opening and the mechanical response of the respiratory system is studied by means of the total respiratory input impedance (Zin). Zin is a complex number that can be expressed as real part, called resistance (Rrs), and imaginary part, called reactance (Xrs). Particularly, it has been recently shown that Xrs measured at 5 Hz is very sensible to changes in the mechanics of lung periphery and provides accurate information about lung volume recruitment and derecruitment. The main purpose of this work is to apply FOT to the assessment of lung function in newborns submitted to SLI at birth. The investigators hypothesized that the application in the delivery room of the SLI in the preterm infant is effective in achieving a greater FRC and therefore a greater value of Xrs compared to a control group not treated with the SLI.

Conditions

Preterm Birth; Respiratory Distress Syndrome; Lung Diseases

Keywords

Respiratory Distress Syndrome, Newborn; Delivery Room; Resuscitation; Premature birth; Infant, Newborn; Respiration Artificial

Outcome Measures

Primary Outcomes (1)

• Change in Reactance (Xrs) values measured by the forced oscillation technique (FOT)

  Baseline and at 5 minutes of life (that is, before and at the end of the SLI)

Secondary Outcomes (9)

• Need for intubation within the first 72 hours of life

  72 hours of life

• Duration of respiratory support (ventilation, CPAP, supplemental oxygen)

  During hospitalization - up to 36 weeks Post Menstrual Age (PMA)

• Death in hospital

  During hospitalization - up to 40 weeks Post Menstrual Age (PMA)

• Number of surfactant doses

  During hospitalization - up to 36 weeks Post Menstrual Age (PMA)

• Retinopathy of prematurity (ROP) stage 3 or greater requiring treatment

  40 weeks Post Menstrual Age (PMA)

Study Arms (2)

SLI group

EXPERIMENTAL

In this group the preterm infants will receive sustained lung inflation (SLI) with mask in the delivery room; the parameters of respiratory mechanics will be monitored for 5 minutes by means of the forced oscillation technique.

Other: Sustained lung inflation; Device: mask using a T-piece system (Fabian,Acutronic Medical Systems AG, Switzerland).

Control

NO INTERVENTION

Preterm infants will be assisted in the delivery room with a continuous positive airway pressure (CPAP) of 5 cmH2O with mask and the parameters of respiratory mechanics will be monitored for 5 minutes by means of the forced oscillation technique.

Interventions

Sustained lung inflation OTHER

Sustained lung inflation (SLI) will be performed with mask using a T-piece system (Fabian,Acutronic Medical Systems AG, Switzerland).Peak inflation pressure (PIP) of 25 cm H2O will be delivered for 15 seconds and then reduced to a PEEP of 5 cm H2O. A second SLI manoeuvre will be repeated in case of persistent hearth failure (HR \<100 bpm).

Also known as: lung recruitment

SLI group

mask using a T-piece system (Fabian,Acutronic Medical Systems AG, Switzerland). DEVICE

SLI group

Eligibility Criteria

• Age: 25 Weeks - 36 Weeks
• Sex: all
• Healthy Volunteers: No
• Age Groups: Child (0-17)

You may qualify if:

• Gestational age (GA) at least 25 weeks but less than 36 completed weeks by best obstetrical estimate

You may not qualify if:

• Refusal of antenatal informed consent
• Known major anomalies, pulmonary hypoplasia
• Severe perinatal suffering

Sponsors & Collaborators

• Fondazione IRCCS Ca' Granda, Ospedale Maggiore Policlinico: lead

MeSH Terms

Conditions

Premature Birth; Respiratory Distress Syndrome; Lung Diseases; Respiratory Distress Syndrome, Newborn

Condition Hierarchy (Ancestors)

Obstetric Labor, Premature; Obstetric Labor Complications; Pregnancy Complications; Female Urogenital Diseases and Pregnancy Complications; Urogenital Diseases; Respiratory Tract Diseases; Respiration Disorders; Infant, Premature, Diseases; Infant, Newborn, Diseases; Congenital, Hereditary, and Neonatal Diseases and Abnormalities

Study Officials

• Mariarosa Colnaghi, MD

  NICU, IRCCS Cà Granda, Ospedale Maggiore Policlinico, Milan

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: NONE
• Purpose: PREVENTION
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Medical doctor

Study Record Dates

• First Submitted: June 23, 2015
• First Posted: July 10, 2015
• Study Start: March 1, 2016
• Primary Completion: March 1, 2017
• Study Completion: March 1, 2018
• Last Updated: March 2, 2021

Record last verified: 2021-02