Exploratory study on lung perfusion measurement using electrical impedance tomography

Exploratory study on lung perfusion measurement using electrical impedance tomography - Exploratory study on lung perfusion measurement using electrical impedance tomography

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000059177

Enrollment

Registered

2025-09-25

Start date

2025-10-01

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

acute respiratory failure with PaO2/FIO2 less than 300 mmHg and mechanically ventilated

Interventions

Intervention to measure pulmonary blood flow without discontinuing mechanical ventilation

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1) The patient exhibits hypoxemia (PaO2/FIO2 below 300 mmHg) and is receiving mechanical ventilation. 2) A central venous line is inserted via the internal jugular vein. 3) The patient is 18 years of age or older at the time of enrollment. 4) Written informed consent for study participation has been obtained from the patient or a legally authorized representative.

Exclusion criteria

Exclusion criteria: 1) Hypotension or heart failure requiring high-dose catecholamine administration. 2) Renal failure requiring dialysis. 3) Hypernatremia (latest sodium value within 1 day prior to registration more than 145 mEq/L). 4) Thoracic deformity observed on chest CT or chest X-ray. 5) Pacemaker implantation.

Design outcomes

Primary

Measure	Time frame
Consistency of distribution of pulmonary blood flow using different methods (measurements with or without ventilation)	—

Countries

Japan

Contacts

Public ContactKeita Matsumoto

Shimane university hospital Intensive Care Medicine

keita.ma@med.shimane-u.ac.jp0853-20-2295

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026