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Mechanical Power During Pressure Controlled Versus Volume-Controlled Ventilation in Acute Respiratory Failure (MP-PCV-VCV)

18 september 2026 uppdaterad av: Sahar Ahmed, Assiut University

Mechanical Power During Pressure-Controlled Versus Volume Controlled Mechanical Ventilation in Patients With Acute Respiratory Failure

This prospective observational cohort study aims to compare mechanical power between pressure-controlled ventilation (PCV) and volume-controlled ventilation (VCV) in critically ill adult patients receiving invasive mechanical ventilation. Mechanical power will be assessed at different time points during the first 24 hours after intubation, with the primary comparison performed at 24 hours. The study will also evaluate the association between mechanical power and clinical outcomes, including ICU mortality, hospital mortality, successful weaning, duration of mechanical ventilation, and length of ICU and hospital stay.

Studieöversikt

Status

Har inte rekryterat ännu

Betingelser

Detaljerad beskrivning

Mechanical ventilation is a life-saving intervention for critically ill patients with acute respiratory failure. However, mechanical ventilation can also contribute to ventilator-induced lung injury when excessive energy is delivered to the respiratory system. Mechanical power, which represents the energy transferred from the ventilator to the respiratory system per unit of time, has emerged as a potentially important parameter for assessing the intensity of mechanical ventilation.

The mode of ventilation may influence mechanical power through changes in airway pressure, tidal volume, respiratory rate, and inspiratory flow. Pressure-controlled ventilation (PCV) and volume-controlled ventilation (VCV) are commonly used modes of invasive mechanical ventilation, but their effects on mechanical power in critically ill patients may differ.

Therefore, this prospective observational cohort study aims to compare mechanical power between PCV and VCV in critically ill adult patients receiving invasive mechanical ventilation and to evaluate the relationship between mechanical power and relevant clinical outcomes.

Studietyp

Observationell

Inskrivning (Beräknad)

186

Kontakter och platser

Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.

Studiekontakt

  • Namn: Sahar Ahmed Okily, Master degree of chest disease
  • Telefonnummer: 01094504484 0201094504484
  • E-post: sara3hmed2012@gmail.com

Studera Kontakt Backup

Studieorter

  • Egypten
      • Asyut, Egypten
        • Assuit university

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

18 år och äldre (Vuxen, Äldre vuxen)

Tar emot friska volontärer

Nej

Kön som är behöriga för studier

Allt

Testmetod

Icke-sannolikhetsprov

Studera befolkning

Adult patients aged >18 years with acute respiratory failure requiring invasive mechanical ventilation and admitted to the Respiratory Intensive Care Unit at Assiut University Hospitals will be enrolled. Eligible patients receiving either pressure-controlled ventilation (PCV) or volume-controlled ventilation (VCV) will be prospectively followed during their ICU and hospital stay.

Beskrivning

Inclusion Criteria:

  • Adult patients aged >18 years.
  • Patients with acute respiratory failure who are receiving invasive mechanical ventilation.

Exclusion Criteria:

  • Patients whose condition requires shifting between VCV and PCV after enrollment.
  • Patients with neurological, neuromuscular, or muscular disorders.
  • Neurological disorders, e.g., stroke, multiple sclerosis, Parkinsonism, and Guillain-Barré syndrome.
  • Neuromuscular junction disorders, e.g., myasthenia gravis.
  • Muscular disorders, e.g., polymyositis and Duchenne muscular dystrophy.
  • Chest wall abnormalities, e.g., kyphoscoliosis, scoliosis, and pectus excavatum.
  • Tracheostomized patients.
  • Patients with raised intra-abdominal pressure (IAP ≥12 mmHg), as estimated by transvesical manometry e.g., massive ascites, bowel obstruction, and postoperative abdominal surgery.
  • Patients with documented chronic type 2 respiratory failure, characterized by an elevated partial pressure of carbon dioxide (PaCO₂ >45 mmHg), low partial pressure of oxygen (PaO₂), and chronically elevated bicarbonate (HCO₃-) reflecting renal compensation.

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Observationsmodeller: COHORT
  • Tidsperspektiv: PROSPECTIVE

Kohorter och interventioner

Grupp / Kohort
93 patients in Pressure controlled ventilation

93 patients in Volume controlled ventilation
93 patients in PCV

93 patients in Volume controlled ventilation

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Mechanical power
Tidsram: 24 hours after intubation

Mechanical power will be measured and compared between pressure-controlled ventilation (PCV) and volume-controlled ventilation (VCV) at 24 hours after intubation.
24 hours after intubation

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
mechanical power and ICU mortality, hospital mortality, time to death.
Tidsram: From hospital admission until 30 days after hospital admission.

Correlation between mechanical power and ICU mortality, hospital mortality, time to death .

  • ICU mortality documented as binary (yes/no) outcome indicating death occurring exclusively during ICU admission.
  • Hospital mortality: documented as binary (yes/no) outcome indicating death occurring during hospitalization, regardless of the location of care at time of death.
  • Time-to-death: documented in days from date of ICU admission till date of event (death).
From hospital admission until 30 days after hospital admission.
Mechanical power over time
Tidsram: At 1, 6, 12, and 24 hours after initiation of invasive mechanical ventilation.

Changes in mechanical power over time following initiation of invasive mechanical ventilation.
At 1, 6, 12, and 24 hours after initiation of invasive mechanical ventilation.
Successful weaning from mechanical ventilation
Tidsram: From intubation until successful weaning( successful extubation without need for ventilatory support within the following 48 hours)

Correlation between Mechanical power and successful weaning from mechanical ventilation .Successful weaning is defined as successful extubation without the need for re-intubation or noninvasive ventilation (NIV) within the following 48 hours.
From intubation until successful weaning( successful extubation without need for ventilatory support within the following 48 hours)

Samarbetspartners och utredare

Det är här du hittar personer och organisationer som är involverade i denna studie.

Sponsor

Assiut University

Utredare

  • Studierektor: Olfat Mostafa El shinawy, Professor, Assiut University, Faculty of Medicine, Chest Diseases Department, Assiut, Egypt
  • Studierektor: Sara Mohamed Hashem, Lecteurer, Assiut University, Faculty of Medicine, Chest Diseases Department, Assiut, Egypt

Publikationer och användbara länkar

Den som ansvarar för att lägga in information om studien tillhandahåller frivilligt dessa publikationer. Dessa kan handla om allt som har med studien att göra.

Allmänna publikationer

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart (Beräknad)

30 oktober 2026

Primärt slutförande (Beräknad)

30 oktober 2028

Avslutad studie (Beräknad)

30 oktober 2029

Studieregistreringsdatum

Först inskickad

13 september 2026

Först inskickad som uppfyllde QC-kriterierna

18 september 2026

Första postat (Faktisk)

22 september 2026

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

22 september 2026

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

18 september 2026

Senast verifierad

1 september 2026

Mer information

Termer relaterade till denna studie

Andra studie-ID-nummer

  • AUN-CH-MP-001

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