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Fetal Blood Flow Response to Partial Occlusion by External Compression

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified March 2013 by Meir Medical Center.
Recruitment status was:  Not yet recruiting
Sponsor:
ClinicalTrials.gov Identifier:
NCT01816737
First Posted: March 22, 2013
Last Update Posted: March 22, 2013
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by (Responsible Party):
Meir Medical Center
  Purpose
Two earlier studies showed measurable fetal hemodynamics changes caused by external pressure induced by te abdominal ultrasound transducer. The investigators would like to study the response of flow in main fetal vessels to different, mild to moderate pressures induced by the abdominal transducer. The pressure induced by the transducer will be measured by a digital computed manometer. The flow chances in fetal vessels will be measured by ultrasound Doppler. Measurements will be taken on different pregnancy weeks, on one occasion in each pregnant woman. Ones without applying transducer pressure (control) and ones after applying mild pressure.

Condition
Gestational Age

Study Type: Observational
Study Design: Observational Model: Case Control
Time Perspective: Prospective

Further study details as provided by Meir Medical Center:

Primary Outcome Measures:
  • pulsatility index in fetal vessels [ Time Frame: at the time of pressure aplication ]

Estimated Enrollment: 50
Study Start Date: March 2013
Estimated Primary Completion Date: October 2013 (Final data collection date for primary outcome measure)
  Eligibility

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 45 Years   (Adult)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   Yes
Sampling Method:   Probability Sample
Study Population
pregnant women
Criteria

Inclusion Criteria:

singleton

Exclusion Criteria:

multiple gestation

  Contacts and Locations
No Contacts or Locations Provided
  More Information

Responsible Party: Meir Medical Center
ClinicalTrials.gov Identifier: NCT01816737     History of Changes
Other Study ID Numbers: MMC13191-12CTIL
0191-12-MMC ( Other Identifier: Helsinki committee , MeirMc, Israel )
First Submitted: March 20, 2013
First Posted: March 22, 2013
Last Update Posted: March 22, 2013
Last Verified: March 2013