Comparison of Positional Invariance Between Continuous Noninvasive and Oscillometric Cuff Blood Pressure Measurements in Term Pregnant Women: A Prospective Simultaneous-Measurement Study

Positional invariance of continuous noninvasive blood pressure monitoring versus oscillometric cuff blood pressure measurement in term pregnancy: a prospective simultaneous-measurement study - SIM-BP-PI study

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000060419

Enrollment

Registered

2026-01-21

Start date

2026-01-22

Completion date

Unknown

Last updated

2026-09-14

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

Conditions

Pregnancy

Interventions

None listed

Eligibility

Sex/Gender

Female

Inclusion criteria

Inclusion criteria: Patients with ASA physical status II who are scheduled to undergo elective cesarean delivery at 37 weeks gestation or later and who provide written informed consent to participate in the study.

Exclusion criteria

Exclusion criteria: Pregnant women with a history of cardiac disease, hypertension, or arrhythmia. Pregnant women with multiple gestation, threatened preterm labor, or fetal growth restriction and/or structural anomalies. Pregnant women with abnormal vital signs on admission.

Design outcomes

Primary

Measure	Time frame
Position invariance index (PII) of mean arterial pressure (MAP) for each device (cNIBP and the oscillometric cuff blood pressure monitor)	—

Secondary

Measure	Time frame
1. PII for systolic blood pressure (SBP) and diastolic blood pressure (DBP) (defined in the same manner as for MAP). 2. Position-specific absolute deviations for each device, i.e., the change from the supine value for each non-supine position. 3. Agreement between cNIBP and the oscillometric cuff blood pressure device for MAP measurements in each position.	—

Countries

Japan

Contacts

Public ContactSHUNSUKE HYUGA

Kitasato University School of Medicine Department of Anesthesiology

shyuga@kitasato-u.ac.jp0427788111

Outcome results