Early versus delayed initiation of continuous distending pressure for respiratory distress syndrome in preterm

J J Ho1, D J Henderson-Smart, P G Davis

  • 1Dept Paediatrics, Perak College of Medicine, Greentown, Ipoh, Malaysia, 30450. jho@pc.jaring.my

Insights

Early continuous distending pressure (CDP) significantly reduces the need for intermittent positive pressure ventilation in preterm infants with respiratory distress syndrome (RDS). However, further research is needed to re-evaluate its use with modern treatments.

Area of Science:

  • Neonatal Medicine
  • Pediatric Respiratory Medicine
  • Critical Care

Background:

  • Continuous distending pressure (CDP) shows potential benefits for preterm infants with respiratory distress syndrome (RDS).
  • Early CDP application may reduce lung damage and conserve surfactant, potentially improving outcomes compared to later treatment.
  • Atelectasis can influence the effectiveness of CDP in managing RDS.

Purpose of the Study:

  • To determine if early versus delayed initiation of CDP in preterm infants with RDS lowers mortality.
  • To assess if early CDP reduces the need for intermittent positive pressure ventilation (IPPV).

Main Methods:

  • Systematic review using the Cochrane Neonatal Review Group's standard search strategy.
  • Included randomized or quasi-random trials of preterm infants with RDS who were spontaneously breathing at entry.
  • Data extraction and quality assessment were performed independently by two authors.

Main Results:

  • Early CDP significantly reduced the subsequent use of intermittent positive pressure ventilation (IPPV) (RR 0.55, NNT 6).
  • No significant effect was observed on overall mortality, pneumothorax, or bronchopulmonary dysplasia rates.
  • One study indicated a reduced duration of oxygen therapy with early CDP.

Conclusions:

  • Early CDP application offers clinical benefits by decreasing the need for IPPV in RDS treatment.
  • This reduction may help prevent adverse effects associated with IPPV.
  • Re-evaluation of early CDP is recommended, considering current practices like antenatal steroids and early surfactant administration.
Abstract

Related Concept Videos

Ventilatory Modes01:14

Ventilatory Modes

Mechanical ventilators are life-saving devices that support or replace spontaneous breathing. They deliver breaths to patients through varying methods known as ventilator modes. Understanding these modes is critical for healthcare providers managing patients with respiratory failure.
There are three ventilatory modes: full support, partial support, and spontaneous. These are described below.
Full Support Modes
Full support modes include controlled mechanical ventilation, continuous mandatory...
Pulmonary Cycle: Exhalation01:17

Pulmonary Cycle: Exhalation

In terms of human respiration, the act of expelling air, known as exhalation (or expiration), operates on the principle of pressure gradients. During expiration, the pressure within the lungs exceeds that of the surrounding atmosphere. Under normal conditions, quiet breathing involves passive exhalation and is free of muscular contractions. This is because the exhalation process is driven by the natural elastic recoil of the lungs and chest wall, both of which have an inherent tendency to...
Mechanical Ventilation III: Noninvasive Ventilation01:23

Mechanical Ventilation III: Noninvasive Ventilation

Noninvasive positive-pressure ventilation (NIPPV), continuous positive airway pressure (CPAP), and bilevel positive airway pressure (BiPAP) are essential methods in respiratory care. These ventilation techniques offer unique benefits for patients with various respiratory conditions, providing adequate support without requiring intubation. Let's explore how each method is crucial in improving patient outcomes and enhancing respiratory therapy.
Noninvasive Positive-Pressure Ventilation (NIPPV)
Endotracheal Tube Extubation01:24

Endotracheal Tube Extubation

Endotracheal tube extubation is a critical procedure in weaning patients from mechanical ventilation. It involves physically removing the oral or nasal endotracheal (ET) tube, marking the final step in liberating a patient from ventilatory support.
Procedure
Extubation removes the endotracheal tube (ETT) from the patient on mechanical ventilation. It requires a well-coordinated, multidisciplinary approach involving physicians, nurses, respiratory therapists, and other healthcare professionals.
Endotracheal Intubation I: Procedure01:15

Endotracheal Intubation I: Procedure

Endotracheal or ET intubation is a critical medical procedure used to secure a patient's airway, often in acute respiratory distress, apnea, upper airway obstruction, ineffective clearance of secretions, high risk for aspiration, or during general anesthesia.
The ET tube comprises various components, including a standard adaptor to attach a bag-valve-mask (BVM) or ventilator, a cuff, a pilot balloon, and radiopaque markings along its length to measure the insertion distance. The tube sizes...
Acute Respiratory Failure-V01:29

Acute Respiratory Failure-V

The treatment for acute respiratory failure varies based on factors like the underlying cause, overall health, and severity. A collaborative healthcare team is essential for early detection, often through arterial blood gas analysis. Identifying the cause is the primary goal, with treatment strategies adjusted for ventilation/perfusion (V/Q) mismatch, shunting, or diffusion impairment.
Ensure that patients are monitored continuously for their response to therapy, including changes in...