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NAVA Use in Preterm Neonates With Respiratory Distress Syndrome

5. november 2026 oppdatert av: Rania Ali El-Farrash, Ain Shams University

Neurally Adjusted Ventilatory Assist [NAVA] Versus Conventional Ventilation in Preterm Neonates With Respiratory Distress Syndrome

A randomized controlled clinical trial evaluates the efficacy of NAVA in comparison with conventional ventilation (SIMV) in preterm neonates with respiratory distress syndrome.

Studieoversikt

Status

Rekruttering

Forhold

Intervensjon / Behandling

Detaljert beskrivelse

Numerous methods for ventilating patients are available in both invasive and noninvasive modes. However, patient-ventilator asynchrony has been a persistent problem .

Neurally adjusted ventilatory assist (NAVA) improves patient-ventilator synchrony in preterm infants, leading to reduced work of breathing, lower peak inspiratory pressures (PIP), and decreased oxygen requirements compared to conventional ventilation . This improved synchrony results in better oxygenation and ventilation, potentially reducing the risk of lung injury and other complications associated with mechanical ventilation in preterm neonates . . NAVA is a mechanical ventilation modality in which the ventilator assists the patient breath in proportion to and in synchrony with the electrical activity of the diaphragm (EAdi) .EAdi is a fast and accurate reflection of phrenic nerve activity arising from central respiratory centers.

During NAVA use, a nasogastric or orogastric tube with electrodes is placed in the patient to detect changes in the diaphragm's electrical activity (Edi) more than 60 times per second . The diaphragm contracts as the phrenic nerves deliver the signal to breathe. The ventilator measures the strength of this activity and provides an appropriately sized breath based on the patient's own effort .

As synchronization in NAVA is independent of pressure or flow trigger and independent of leaks, NAVA has a strong potential to increase invasive ventilation efficiency .

Patient-ventilator asynchrony occurs when the ventilator fails to detect the patient's breath or detects it too late in the breathing cycle, leading to complications that include increased sedation, discomfort, and possibly higher morbidity and mortality .

With NAVA, the patient is actually controlling the trigger, delivery and cycling of every breath. The ventilator becomes completely synchronous with the patient avoiding the undesirable outcomes of patient-ventilator asynchrony. Since the Edi is a reflection of neural respiratory output, ventilator breath delivery is in synchrony with neural control of ventilation .

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Studietype

Intervensjonell

Registrering (Antatt)

30

Fase

  • Ikke aktuelt

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiekontakt

  • Navn: Rania Ali El-Farrash
  • Telefonnummer: +201222208550

Studiesteder

    • Abbasia
      • Cairo, Abbasia, Egypt, 11517
        • Rekruttering
        • Neonatal Intensive Care Units (NICUs), Ain Shams University

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

1 dag til 1 måned (Barn)

Tar imot friske frivillige

Nei

Kjønn som er kvalifisert for studier

Alle

Beskrivelse

Inclusion Criteria:

  1. Gestational age ≤ 34 weeks.
  2. Neonates that have RDS according to clinical and radiological findings
  3. Neonates requiring invasive mechanical ventilation.

Exclusion Criteria:

  • 1) Preterm neonates that have respiratory distress due to causes other than respiratory distress syndrome including transient tachypnea of new born , congenital pneumonia and sepsis. 2)Central and peripheral conditions that limit the respiratory drive, as well as diaphragmatic anatomical defects in patients with an intact respiratory drive, comprise the contraindications to NAVA

    • Examples are the following:

      • Central disorder: paralytic drug use, respiratory drive suppression due to heavy sedation or brain injury.
      • Peripheral disorder: phrenic nerve injury, paralytic agent administration.
      • Structural (anatomical) disorder: esophageal atresia, diaphragmatic hernia. 3) Cardiac patients including aortic coarctation , double outlet right ventricle (DORV), Tetralogy of Fallot and Transposition of the great arteries (TGA). 4) Surgical patients including gastroschisis , omphalocele , tracheoesophageal fistula and congenital diaphragmatic hernia (CDH).

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Diagnostisk
  • Tildeling: Randomisert
  • Intervensjonsmodell: Parallell tildeling
  • Masking: Enkelt

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: Experimental: Neurally Adjusted Ventilatory Assist [NAVA] .

After documenting parental consent, preterm neonates with respiratoryd by insufficiency randomly ventilated on NAVA will be assessed by transcranial Doppler ultrasonographic examination and echocardiography.

ventilator settings will be recorded such as: NAVA level , Edi peak , peep, apnea time

Aktiv komparator: Active Comparator: Synchronized Intermittent Mandatory Ventilation (SIMV)

After documenting parental consent, preterm neonates with respiratoryd by insufficiency randomly ventilated on SIMV will be assessed by transcranial Doppler ultrasonographic examination and echocardiography.

ventilator settings will be recorded such as peep , PIP , Fio2

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Echocardiography
Tidsramme: baseline and after 24 hours from enrollment in the study

to assess any structural cardiac anomalies, the patency of ductus arteriosus, right ventricular output (RVO), left ventricular output (LVO), and superior vena cava (SVC) flow, ejection fraction (EF) and pulmonary pressure performed by a specialized echocardiographist.

baseline and after 24 hours from enrollment in the study

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
Transcranial ultrasonography Doppler
Tidsramme: baseline and after 24 hours from enrollment in the study

applied to the middle cerebral artery to provide an estimate of cerebral blood flow performed by a specialized pediatric radiologist .

baseline and after 24 hours from enrollment in the study
Duration of admission
Tidsramme: up to 8 weeks or till patient discharged or die which comes first

To document total number of days of admission

up to 8 weeks or till patient discharged or die which comes first
Mortality rate
Tidsramme: up to 8 weeks or till patient death which comes first

To document incidence of mortality during hospitalization

up to 8 weeks or till patient death which comes first
Incidence of feeding intolerance
Tidsramme: up to 8 weeks or till patient discharged or die which comes first

Percentage of Patients who developed feeding intolerance

up to 8 weeks or till patient discharged or die which comes first
Days to reach full intake
Tidsramme: up to 8 weeks or till patient discharged or die which comes first

Number of days needed by each patient to reach full intake

up to 8 weeks or till patient discharged or die which comes first
Chest x ray change
Tidsramme: upon NICU admission and one hour after enrollment in the study .

Chest x ray grading of RDS performed to patient before and after the assigned mode to compare lung aeration degree

upon NICU admission and one hour after enrollment in the study .

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Faktiske)

24. januar 2026

Primær fullføring (Antatt)

1. oktober 2027

Studiet fullført (Antatt)

1. januar 2028

Datoer for studieregistrering

Først innsendt

28. oktober 2026

Først innsendt som oppfylte QC-kriteriene

5. november 2026

Først lagt ut (Faktiske)

9. november 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

9. november 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

5. november 2026

Sist bekreftet

1. oktober 2026

Mer informasjon

Begreper knyttet til denne studien

Andre studie-ID-numre

  • NAVA use in preterm neonates

Legemiddel- og utstyrsinformasjon, studiedokumenter

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Nei

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Nei

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