An exploratory study on the collapse index of inferior vena cava during pregnancy and delivery

Status

Recruiting

Phases

Early Phase 1

Study type

Observational

Source

ChiCTR

Registry ID

ChiCTR2000040527

Enrollment

Unknown

Registered

2020-12-01

Start date

2019-01-01

Completion date

Unknown

Last updated

2021-03-08

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

Conditions

Pregnancy physiological

Interventions

case series:Nil

Eligibility

Sex/Gender

Female

Age

18 Years to 50 Years

Inclusion criteria

Inclusion criteria: 1. Single pregnancy; 2. No circulatory system-related diseases or history; 3. No obstetric complications or complications.

Exclusion criteria

Exclusion criteria: 1. Patients who do not agree to participate in this study. 2. Age <= 14 years old; 3. Patients with a history of use of anticoagulants and non-steroidal anti-inflammatory drugs within 7 days. 4. High-risk referral but incomplete clinical data.

Design outcomes

Primary

Measure	Time frame
Inferior vena cava collapse index;	—

Secondary

Measure	Time frame
Cavitation width of inferior vena cava;	—

Countries

China

Contacts

Public ContactZhangYan

Peking University Third Hospital

zhangyann01@126.com+86 13581723657

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026