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Association between total hemoglobin index measured using finger-mounted tissue oximetry and blood hemoglobin levels during puerperium: a prospective study

Association between total hemoglobin index measured using finger-mounted tissue oximetry and blood hemoglobin levels during puerperium: a prospective study - Association between total hemoglobin index and blood hemoglobin levels during puerperium

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
JPRN
Registry ID
JPRN-UMIN000028866
Enrollment
100
Registered
2017-08-28
Start date
2017-09-06
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

Puerperium

Interventions

Finger-mounted tissue oximetry For one day or two days

Sponsors

Hamamatsu University School of Medicine
Lead Sponsor

Eligibility

Sex/Gender
Female

Inclusion criteria

Inclusion criteria: 1. Women who are aged >19 years 2. Women who delivered in the past week, excluding the day of delivery 3. Women who have voluntarily provided written consent for participating in this study 4. Women whose hemoglobin levels were or will be measured along with hematological examination on the day of the study

Exclusion criteria

Exclusion criteria: 1. Women who have malfunction in the circulatory and/or respiratory system: systolic blood pressure < 90 mmHg; pulse rate > 120/min; administration of a vasopressor; percutaneous oxygen saturation < 95%; administration of oxygen; presence of local circulatory dysfunction; active bleeding; and active diseases, such as acute heart failure and bronchial asthma 2. Body temperature > 38.0 degrees Celsius, body temperature < 35.0 degrees Celsius, and white blood cell count > 15000/mm3 or < 2000/mm3 3. Abnormal indoor condition or ambient temperature: ambient temperature > 30.0 degrees Celsius, ambient temperature < 10.0 degrees Celsius, or an abnormal weather 4. The interval between the measurement of the total hemoglobin index and hematological examination of >12 h 5. Women who have undergone transfusion in the past 16 weeks 6. A history of abnormal hemoglobinopathy 7. A body mass index of >30 or <18.5 8. Women who are evaluated to be ineligible for participating in the study by doctors

Design outcomes

Primary

MeasureTime frame
To calculate the correlation coefficient between the total hemoglobin index measured using finger-mounted tissue oximetry at the thenar muscle and blood hemoglobin levels during puerperium.

Secondary

MeasureTime frame
To calculate the correlation coefficient between the total hemoglobin index measured using finger-mounted tissue oximetry at deltoid and sternocleidomastoid muscles and blood hemoglobin levels during puerperium. As an exploratory research, to investigate intra- and inter-rater reliabilities, a time-dependent change in values at the same objectives, and the association between tissue oxygen saturation and blood hemoglobin levels.

Countries

Japan

Contacts

Public ContactKenta Kawai

Hamamatsu University School of Medicine Department of Obstetrics and Gynecology

D15018@hama-med.ac.jp053-435-2309

Outcome results

None listed

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