Validating rapid shallow breathing index measured by ventilator versus standard technique by Wright spirometer in patients who are ready to wean

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

TCTR

Registry ID

TCTR20180606001

Enrollment

Registered

2018-06-06

Start date

2018-06-16

Completion date

Unknown

Last updated

2026-03-30

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Mechanically ventilated patients who are ready wean &#45

Interventions

Mechanically ventilated patiented who are eligible for the study will be enrolled. Rapid shallow breathing index will be measure using Wright spirometer after disconnecting from the ventilator for 1 m

15&#44

30&#44

45 and 60 seconds at the same time of measuring using Wright spirometer

Diagnostic

Mechanically ventilated patients who are ready to wean

Eligibility

Sex/Gender

All

Age

18 Years to 90 Years

Inclusion criteria

Inclusion criteria: 1. Age 18-90 years 2. Mechanically ventilated patient 3. Ready to wean - Stable hemodynamics: heart rate /= 92% (or PaO2/FiO2 ratio >/= 200 mmHg) with pressure support /= 13

Exclusion criteria

Exclusion criteria: 1. Tracheostomized patient 2. Pregnant woman 3. Uncooprate

Design outcomes

Primary

Measure	Time frame
Correlation between rapid shallow breathing index measure by Wright Spirometer and ventilator 1 minute Rapid shallow breathing index	—

Secondary

Measure	Time frame
N/A N/A N/A	—

Contacts

Public ContactDr. Nuttapol Rittayamai

Faculty of Medicine Siriraj Hospital, Mahidol University

nuttapol.rit@mahidol.ac.th+6624197757

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Apr 4, 2026