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Pulse and Constitution of Pregnant Women

Prediction of Pregnancy Constitutions and Pregnancy Slippery Pulse Using ANSWatch

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT05428878
Enrollment
200
Registered
2022-06-23
Start date
2022-04-11
Completion date
2024-10-20
Last updated
2024-05-06

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

Conditions

Pregnancy, Pulse Wave

Keywords

pregnant women, pulse

Brief summary

The present project plans to detect pregnant pulses using this portable ANS (autonomic nervous system) Watch connected to a laptop. One hundred pregnant women and 100 non-pregnant women will be recruited.

Detailed description

ANS(autonomic nervous system) Watch has been developed as to detect pulse waves using a pressure detector. It is used to measured cardiovascular indices, including cardiac output, and vessel stiffness. ANSWatch is developed to apply to the prediction of traditional Chinese medicine (TCM) pulses, such as the wiry pulse. There are 28 types of pulses in TCM. Among them, the slippery pulse is the most commonly seen pulse in pregnant women. The present project plans to detect pregnant pulses using this portable ANSWatch connected to a laptop. One hundred pregnant women and 100 non-pregnant women will be recruited. After taking the indices of the subjects, a neural network is designed to provide the prediction for pregnancy constitution, pregnancy pulse and slippery pulse in pregnant women.

Interventions

DIAGNOSTIC_TESTANS Watch

1. ANS Watch will be used to record the pulse waves 2. Constitution questionnaire will be used to measure the constitution type

Sponsors

China Medical University Hospital
Lead SponsorOTHER

Study design

Observational model
CASE_CONTROL
Time perspective
CROSS_SECTIONAL

Eligibility

Sex/Gender
FEMALE
Age
20 Years to 45 Years
Healthy volunteers
Yes

Inclusion criteria

* nonpregnant females and singleton pregnant females aged 20 - 45 years; * no estrogen, progesterone, or ovulation inducing medications were in the past six months

Exclusion criteria

* active heart disease, liver disease, kidney disease, or thyroid disease; * any chronic disease which needs medication * smoking, drug abuse, or alcohol abuse; * psychiatric disorders or impaired cognitive function; * taking Chinese medicine or western medicine in three months; * Acute conditions currently, such as gastroenteritis, upper airway infection, acute attach of asthma, etc.

Design outcomes

Primary

MeasureTime frameDescription
Pulse wavesDay 1The indices of pulse waves measured by ANSWatch , a pulse wave machine(https://www.taiwanscientific.com.tw/%E5%BF%83%E5%BE%8B%E5%A4%A7%E5%B8%ABanswatch). A neural network is designed to provide the prediction for pregnancy pulse.

Secondary

MeasureTime frameDescription
ConstitutionDay 1Nine constitutions will be measured using the Nine constitution Questionnaire (in Chinese). This questionnaire defines whether subjects have Yin-deficiency, Yang-deficiency, Qi-deficiency, Phlegm-dampness, Dampness-heat, Special dialesis, Blood-stasis, Qi-depression, and Neuter constitutions. The questionnaire is divided into several sections, each addressing different aspects of the subject's constitution. Within each section, there are 6 to 8 sub-questions, and responses are rated on a scale from 1 to 5, reflecting the intensity or frequency of the subject's experiences.Sum the scores from all sub-questions within the section to obtain the raw score,which is then transformed to a 0-100 scale. If the transformed score falls below 30, it suggests that the subject does not exhibit characteristics of this constitution.Scores between 30 and 40 indicate a tendency towards this constitution.Scores exceeding 40 indicate that the subject belongs to this constitution.

Countries

Taiwan

Contacts

Primary ContactShan-Yu Su, M.D.
shanyusu@gmail.com+886-4-22052121

Outcome results

None listed

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