Non-invasive Hemoglobin Monitoring in Cesarean Section

The Effectiveness of Intraoperative Non-invasive Hemoglobin Monitoring in Parturients With Placenta Previa Undergoing Cesarean Section: Prospective Observational Study

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT03409822

Enrollment

Registered

2018-01-24

Start date

2018-02-05

Completion date

2018-12-30

Last updated

2019-01-17

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

Conditions

Placenta Previa

Brief summary

Non-invasive hemoglobin monitoring will be performed in patients who underwent cesarean section with placenta previa and this will be compared with actual laboratory findings. The investigators will investigate whether noninvasive hemoglobin monitoring can adequately reflect the massive bleeding that occurs within a short period of time and find out if it matches the actual laboratory findings.

Interventions

DEVICEMasimo SpHb™ monitor

Attach the Masimo Rainbow SET® Radical-7 ™ pulse oximeter probe to the third or fourth finger and perform a Masimo SpHb ™ monitor.

Study design

Allocation

Intervention model

SINGLE_GROUP

Primary purpose

DIAGNOSTIC

Masking

NONE

Eligibility

Sex/Gender

FEMALE

Age

20 Years to 50 Years

Healthy volunteers

Inclusion criteria

* Pregnant woman * Elective Cesarean section * Placenta previa

Exclusion criteria

* Decline of consent * Peripheral vascular disease * Cyanosis due to congenital heart disease * Refusal of transfusion * Mental retardation

Design outcomes

Primary

Measure	Time frame
The change of total hemoglobin	10 min before operation, 10 min after operation, 1 min after skin incision, 1 min after delivery of baby, 1 min after removal of placenta, 1 min after skin closure

Secondary

Measure	Time frame
The change of oxygen content	10 min before operation, 10 min after operation, 1 min after skin incision, 1 min after delivery of baby, 1 min after removal of placenta, 1 min after skin closure
The change of methemoglobin	10 min before operation, 10 min after operation, 1 min after skin incision, 1 min after delivery of baby, 1 min after removal of placenta, 1 min after skin closure
The change of carboxyhemoglobin	10 min before operation, 10 min after operation, 1 min after skin incision, 1 min after delivery of baby, 1 min after removal of placenta, 1 min after skin closure
The change of pleth variability index	10 min before operation, 10 min after operation, 1 min after skin incision, 1 min after delivery of baby, 1 min after removal of placenta, 1 min after skin closure
The change of perfusion index	10 min before operation, 10 min after operation, 1 min after skin incision, 1 min after delivery of baby, 1 min after removal of placenta, 1 min after skin closure

Countries

South Korea

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026