A new approach of evaluation for pulmonary circulation -non-invasive evaluation for pulmonary vascular obstruction using by wave motion analysis -

A new approach of evaluation for pulmonary circulation -non-invasive evaluation for pulmonary vascular obstruction using by wave motion analysis - - A new approach of non-invasive evaluation for pulmonary vascular obstruction using by wave motion analysis

Status

Recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000047244

Enrollment

Registered

2022-03-22

Start date

2017-12-01

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

Pediatric pulmonary hypertension

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Pediatric patients with various obstructive condition in pulmonary vasculature with oral and written informed consent

Exclusion criteria

Exclusion criteria: Cases who have significant pulmonary stenosis Cases who are considered inappropriate for this study by the principal investigator

Design outcomes

Primary

Measure	Time frame
Phase angle from vascular diameter-blood velocity relation calculated by ultrasonic equipment Phase angle from pressure -blood flow velocity relation	—

Secondary

Measure	Time frame
Pulmonary artery pressure Pulmonary vascular resistance Pulmonary/systemic blood flow ratio	—

Countries

Japan

Contacts

Public ContactHiroshi Katayama

Osaka Medical College Department of Pediatrics

hiroshi.katayama@ompu.ac.jp072-683-1221

Outcome results