Clinical trial Recruiting at 1 site Observational Ages 18 and up

See if reintubation risk can be predicted after major surgery

Official title: Assessment of Reintubation Risk Using Multiple Parameters in Postoperative Intensive Care Unit Patients

Run by Prof. Dr. Cemil Tascıoglu Education and Research Hospital Organization · NCT07672106 · Data updated 2026-11-12

This observational study tests whether ultrasound measurements of the diaphragm and chest muscles, plus the ROX index, can help predict which adults in the ICU after major surgery might need reintubation.

Quick facts

Study typeObservational
Ages18 Years and up
SexAll
Enrollment600 (estimated)
SponsorProf. Dr. Cemil Tascıoglu Education and Research Hospital Organization
Academic / other
Locations1 site (Istanbul, Şişli)
StatusRecruiting
StartedApril 28, 2026
Main results expectedOctober 28, 2026
Study endsOctober 28, 2026
Registry record updatedAugust 11, 2026
Trial IDNCT07672106 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults 18 years and older who are extubated in the operating room and admitted to the ICU with spontaneous breathing after major surgery.

Probably not a fit

Patients who remain stable without risk indicators or who do not require reintubation may see limited direct benefit.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

In this prospective observational study, adult postoperative ICU patients who were extubated in the OR and are breathing spontaneously will undergo bedside ultrasound assessments of diaphragm thickness, parasternal intercostal muscle thickness, and lung ultrasound score within the first hours after ICU admission. The ROX index will be calculated from oxygen saturation, inspired oxygen, and respiratory rate, and perioperative fluid balance will be recorded. Patients will be followed for 48 to 72 hours to see if reintubation is required. This study aims to identify early markers that could indicate reintubation risk in a real-world ICU setting without intervening treatments.

Why it matters

Potential benefit: If successful, the findings could help clinicians identify patients at higher risk of reintubation and tailor monitoring and care accordingly.

How similar studies have gone: Previous work in similar areas has shown promise for using ultrasound and clinical indices to predict reintubation, but this exact combination in this context is relatively novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

Adult patients aged 18 years and older

Patients requiring postoperative intensive care follow-up after major surgery, including abdominal, vascular, orthopedic, or ear, nose, throat, head and neck surgery

Patients extubated in the operating room and admitted to the intensive care unit with spontaneous breathing

Patients without any clinical condition preventing the planned measurements within the first 0-2 hours after ICU admission (T0 and T1)

Patients for whom written informed consent can be obtained from the patient or legally authorized representative

Patients admitted to the intensive care unit within the specified study period after ethics committee approval and enrolled consecutively

Exclusion Criteria:

Patients younger than 18 years of age

Patients who leave the operating room intubated or are admitted to the intensive care unit while intubated

Patients with a tracheostomy

Patients with a history of diaphragmatic paralysis

Patients with a significant neuromuscular disease, such as ALS, myasthenia gravis, or similar conditions

Patients with conditions that significantly prevent ultrasound measurements, including marked subcutaneous emphysema, large dressings or bandages covering the measurement area, inability to access the measurement site due to drains or the surgical field, or inability to obtain technically adequate images

Patients in whom the planned measurements cannot be performed due to clinical instability requiring emergency intubation immediately after ICU admission

Patients from whom informed consent cannot be obtained, or patients or legally authorized representatives who refuse participation

Where it's running

  • Prof. Dr. Cemil Taşçıoğlu Şehir Hastanesi
    Istanbul, Şişli, Turkey (Türkiye)
    Recruiting

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.