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Venous Air Embolism in Cesarean Delivery, Especially Placental Previa

This study has been completed.
ClinicalTrials.gov Identifier:
First Posted: September 28, 2009
Last Update Posted: November 4, 2010
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:
Yonsei University
Effects of placenta previa on incidence and severity of venous air embolism in patients during cesarean delivery

Condition Intervention
Cesarean Delivery With Placental Previa Procedure: cesarean delivery

Study Type: Observational
Study Design: Observational Model: Case-Only
Time Perspective: Prospective

Resource links provided by NLM:

Further study details as provided by Yonsei University:

Primary Outcome Measures:
  • read sonography records during the surgery [ Time Frame: After 1 or 2 weeks of surgery ]
    Three sono views will be recorded rapidly for later interpretation of the stage of air embolism. The midesophageal (ME) 4-chamber view will be continuously monitored during surgery and videotaped. When a bubble is detected in the right atrium (RA), the probe will be turned to the right side and the angle was adjusted to the ME bicaval view to confirm its entrance from the inferior vena cava. Then, the angle will be rapidly re-adjusted to view the ME right ventricle (RV) inflow-outflow view to confirm the extent of air embolism through the right ventricular outflow tract (RVOT).

Enrollment: 80
Study Start Date: May 2007
Study Completion Date: September 2009
Primary Completion Date: September 2009 (Final data collection date for primary outcome measure)
Groups/Cohorts Assigned Interventions
placental previa Procedure: cesarean delivery


Information from the National Library of Medicine

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Ages Eligible for Study:   20 Years to 40 Years   (Adult)
Sexes Eligible for Study:   Female
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
cesarean delivery with placental previa

Inclusion Criteria:

  • Healthy Volunteer with cesarean delivery

Exclusion Criteria:

  • the one who rejects to participate
  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00985764

Korea, Republic of
Severance Hospital
Seoul, Korea, Republic of
Sponsors and Collaborators
Yonsei University
  More Information

Responsible Party: Ki Jun Kim, Yonsei University, College of Medicine, Dep of Anesthesiology
ClinicalTrials.gov Identifier: NCT00985764     History of Changes
Other Study ID Numbers: 4-2007-0006
First Submitted: September 25, 2009
First Posted: September 28, 2009
Last Update Posted: November 4, 2010
Last Verified: October 2010