The Rapid Shallow Breathing Index (RSBI) is a Widely Used Predictor for Weaning Patients From Mechanical Ventilation This Study Aims to Determine the Predictive Value of RSBI Measurements for Extubation Success in Mechanically Ventilated ICU Patients

March 11, 2026 updated by: sarah hamdy, Ain Shams University

Rapid Shallow Index as Successfully Predictor of Outcome of Extubating

Early extubation in ICU patients is crucial for reducing complications of prolonged ventilation, including morbidity and mortality. The Rapid Shallow Breathing Index (RSBI) is a widely used predictor for weaning patients from mechanical ventilation. This study aims to determine the predictive value of RSBI measurements for extubation success in mechanically ventilated ICU patients

Study Overview

Detailed Description

The extubation decision is a combined clinical judgment based on a passing Spontaneous Breathing Trial (SBT) and a Rapid Shallow Breathing Index (RSBI) value ≤ 105 breaths/min/L.combination of criteria (SBT + RSBI threshold) This approach is recommended to improve predictive accuracy, as neither SBT nor RSBI alone is perfectly reliable.

Study Type

Observational

Enrollment (Estimated)

70

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

    • Abbasia
      • Cairo, Abbasia, Egypt, 1181

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

mechnically ventilated patient eligable for extubation

Description

Inclusion Criteria:

  • • Adults > 22 years.

    • Mechanically ventilated patients meeting extubation readiness:

      • FiO₂ ≤ 0.4, PEEP ≤ 8 cmH₂O, PaO₂/FiO₂ ≥ 200 mmHg.
      • Respiratory rate ≤ 35 breaths/min, pH > 7.30.
      • Hemodynamic stability (HR ≤ 120 bpm, SBP 90-160 mmHg).
      • Glasgow Coma Scale >10, adequate cough reflex.
    • Includes postoperative, elective/emergency reintubation, and tracheostomized patients.

Exclusion Criteria:

  • Age <22 years.
  • Refusal of informed consent.
  • Altered mental status (e.g., traumatic brain injury).
  • Hemodynamic instability or deep sedation (RASS ≤ -2).

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Extubation success (no reintubation/adjuvant support within 48h).
Time Frame: 48 hour
no reintubation or adjuvant oxygen therapy
48 hour

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

March 1, 2026

Primary Completion (Estimated)

September 1, 2026

Study Completion (Estimated)

September 1, 2026

Study Registration Dates

First Submitted

March 9, 2026

First Submitted That Met QC Criteria

March 9, 2026

First Posted (Actual)

March 12, 2026

Study Record Updates

Last Update Posted (Actual)

March 13, 2026

Last Update Submitted That Met QC Criteria

March 11, 2026

Last Verified

March 1, 2026

More Information

Terms related to this study

Other Study ID Numbers

  • FAMSU R39/2026

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

Yes

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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