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Arm Position and Blood Pressure Measurement Accuracy During Pregnancy

NCT07405723 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 300

Last updated 2026-04-16

No results posted yet for this study

Summary

Accurate blood pressure measurement is essential during pregnancy, as blood pressure readings guide clinical decisions related to the diagnosis and management of hypertensive disorders of pregnancy. Clinical guidelines recommend measuring blood pressure with the arm supported at heart level; however, in routine practice, blood pressure is often measured with the arm in non-standard positions.

This study aims to evaluate how different arm positions affect blood pressure measurements in pregnant women. Pregnant women attending a high-risk pregnancy clinic will undergo blood pressure measurements with the arm placed in several commonly used positions, including supported at heart level, supported on the lap, and unsupported at the side. Each participant will have multiple measurements taken during a single clinic visit.

The study is designed as a randomized crossover trial with stratification by trimester and chronic hypertension status, allowing each participant to serve as her own control. Participants will be enrolled across all three trimesters of pregnancy, and results will be analyzed separately for each trimester. The primary outcome is the difference in systolic and diastolic blood pressure measurements between arm positions.

The findings of this study may help improve the accuracy of blood pressure measurement during pregnancy and inform clinical practice regarding optimal measurement techniques.

Conditions

  • Pregnancy
  • Blood Pressure Measurement in Pregnancy
  • Hypertensive Disorder of Pregnancy

Interventions

OTHER

Arm Supported at Heart Level

Blood pressure measurements are obtained with the arm supported at heart level while the participant is seated.

OTHER

Arm Supported on Lap

Blood pressure measurements are obtained with the arm supported on the participant's lap while seated.

OTHER

Arm Unsupported at Side

Blood pressure measurements are obtained with the arm unsupported at the participant's side while seated.

Sponsors & Collaborators

  • Sheba Medical Center

    lead OTHER_GOV

Study Design

Allocation
RANDOMIZED
Purpose
OTHER
Masking
NONE
Model
CROSSOVER

Eligibility

Min Age
18 Years
Max Age
55 Years
Sex
FEMALE
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2026-04-12
Primary Completion
2026-09-01
Completion
2026-12-31

Countries

  • Israel

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07405723 on ClinicalTrials.gov