A prospective observational study to evaluate appropriate extubation time of postoperative patients using chest X-ray Dynamic Digital Radiography (DDR).

A prospective observational study to evaluate appropriate extubation time of postoperative patients using chest X-ray Dynamic Digital Radiography (DDR). - A prospective observational study to evaluate appropriate postoperative extubation time using Dynamic Digital Radiography (DDR).

Status

Recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000053288

Enrollment

200

Registered

2024-01-12

Start date

2024-04-01

Completion date

Unknown

Last updated

2026-06-29

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

Conditions

postoperative patients on mechanical ventilation

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patients who require mechanical ventilation after surgery under general anesthesia

Exclusion criteria

Exclusion criteria: Patients with a history of breast cancer, patients who may be pregnant, and patients who refuse informed consent.

Design outcomes

Primary

Measure	Time frame
Statistical analysis will be performed to compare the changes in effective ventilation area and ventilation-perfusion mismatch before and after surgery between the group that only underwent non-invasive oxygen therapy without positive pressure after extubation until ICU discharge (S group) and the group that required re-intubation or NPPV (F group). However, NPPV which was preventively used right after the extubation will not be considered as a failure of extubation The final evaluation period is when patients are discharged from ICU.	—

Measure

Time frame

Statistical analysis will be performed to compare the changes in effective ventilation area and ventilation-perfusion mismatch before and after surgery between the group that only underwent non-invasive oxygen therapy without positive pressure after extubation until ICU discharge (S group) and the group that required re-intubation or NPPV (F group). However, NPPV which was preventively used right after the extubation will not be considered as a failure of extubation The final evaluation period is when patients are discharged from ICU.

—

Secondary

Measure	Time frame
Weight gain rate from before surgery to ICU admission, comparison of pre-operative findings with digital dynamic radiography at each phase, rapid shallow breathing index: RSBI, APACHE-II score, static lung compliance just before extubation. Tidal volume, respiratory rate, and heart rate during spontaneous breathing are also being considered.	—

Countries

Japan

Contacts

Public ContactHidehisa Saito

Tohoku University Hospital Division of Surgical Center

hidehisa.saito.e2@tohoku.ac.jp022-717-7321

Outcome results