The Society for Obstetric Anesthesia and Perinatology Research Network General Anesthesia Registry
1 other identifier
observational
5,000
2 countries
35
Brief Summary
The SOAP registry is a prospective, multicenter, electronic registry. The goal is to investigate the indications, mode of airway management, predisposing factors, and obstetric and anesthetic outcomes of pregnant patients who receive general anesthesia for cesarean delivery.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Feb 2024
Longer than P75 for all trials
35 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
August 16, 2023
CompletedFirst Posted
Study publicly available on registry
September 8, 2023
CompletedStudy Start
First participant enrolled
February 22, 2024
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 31, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
December 1, 2028
June 4, 2026
June 1, 2026
2.9 years
August 16, 2023
June 3, 2026
Conditions
Outcome Measures
Primary Outcomes (7)
Rates of General Anesthesia for Cesarean Delivery
The rates of general anesthesia for cesarean delivery among the institutions in the cohort will be assessed. Descriptive analyses of etiologies of and management of general anesthetics for cesarean delivery will also be performed.
Up to 5 years
Univariate Association Between Facility Type and the Rate of General Anesthesia for Cesarean Delivery
The association between facility type- non-academic affiliated private vs. academic affiliated private vs. military vs. academic (reference)- with a difference in rates of general anesthesia for cesarean delivery will be assessed.
Up to 5 years
Univariate Association Between SOAP Center of Excellence Designation and the Rate of General Anesthesia for Cesarean Delivery
The association between SOAP center of excellence designation- yes (reference) vs. no- with a difference in rates of general anesthesia for cesarean delivery will be assessed.
Up to 5 years
Univariate Association Between Maternal Level of Care and the Rate of General Anesthesia for Cesarean Association
The association between maternal level of care- I vs. II vs. III vs. IV (reference)- with a difference in rates of general anesthesia for cesarean delivery will be assessed.
Up to 5 years
Univariate Association Between Annual Live Births and the Rate of General Anesthesia for Cesarean Delivery
The association between increased numbers of annual live births (continuous variable) and a difference in rates of general anesthesia for cesarean delivery will be assessed.
Up to 5 years
Univariate Association Between Obstetric Anesthesiologist Coverage and the Rate of General Anesthesia for Cesarean Delivery
The association between increased rates of labor and delivery floor coverage by obstetric anesthesiologists (continuous variable) and a difference in rates of general anesthesia for cesarean delivery will be assessed.
Up to 5 years
Univariate Association Between Institutional Policies for Labor Epidural Management and the Rate of General Anesthesia for Cesarean Delivery
The association between the presence of institutional policies for labor epidural management- yes (reference) vs. no- and a difference in rates of general anesthesia for cesarean delivery will be assessed.
Up to 5 years
Secondary Outcomes (6)
Rates of Difficult Intubation Among Women Undergoing General Anesthesia for Cesarean Delivery
Up to 5 years
Univariate Association Between Mallampati Score and the Risk of Difficult Intubation
Up to 5 years
Univariate Association Between Neck Mobility and the Risk of Difficult Intubation
Up to 5 years
Univariate Association Between Neck Circumference and the Risk of Difficult Intubation
Up to 5 years
Univariate Association Between Neck Length and the Risk of Difficult Intubation
Up to 5 years
- +1 more secondary outcomes
Eligibility Criteria
The subject population will reflect the diverse populations of the participating hospitals. The subject population will include pregnant women aged 15-55 years old who have a general anesthetic during their cesarean delivery. Non-English-speaking subjects will be included.
You may qualify if:
- Pregnant women aged 15-55 who have had a general anesthetic for Cesarean delivery
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Yale Universitylead
Study Sites (35)
University of Arkansas
Little Rock, Arkansas, 72205, United States
University of California San Francisco
San Francisco, California, 94158, United States
Stanford University
Stanford, California, 94303, United States
University of Colorado Hospital
Arvada, Colorado, 80007, United States
Yale University
New Haven, Connecticut, 06510, United States
University of Florida
Gainesville, Florida, 32610, United States
St Lukes Anesthesia Associates of Boise
Boise, Idaho, 83712, United States
University of Chicago Medical Center
Chicago, Illinois, 60637, United States
Indiana University
Indianapolis, Indiana, 46202, United States
University of Iowa
Iowa City, Iowa, 52242, United States
University of Kansas Health System
Kansas City, Kansas, 66160, United States
University of Maryland School of Medicine
Baltimore, Maryland, 21201, United States
Brigham & Women's Hospital
Boston, Massachusetts, 02115, United States
Boston Medical Center
Boston, Massachusetts, 02118, United States
Beth Israel Deaconess Medical Center
Boston, Massachusetts, 02215, United States
Mayo Clinic
Rochester, Minnesota, 55905, United States
Mercy Hospital St. Louis
St Louis, Missouri, 63141, United States
Dartmouth-Hitchcock Medical Center
Lebanon, New Hampshire, 03756, United States
University of New Mexico
Albuquerque, New Mexico, 87106, United States
Albany Medical Center
Albany, New York, 12208, United States
Northwell Health
Manhasset, New York, 11030, United States
Icahn School of Medicine at Mount Sinai
New York, New York, 10029, United States
Renaissance School of Medicine Stony Brook University
Stony Brook, New York, 11794, United States
Duke University Medical Center
Durham, North Carolina, 27710, United States
Atrium Health Wake Forest Baptist Medical Center
Winston-Salem, North Carolina, 27157, United States
University o Cincinnati
Cincinnati, Ohio, 45267, United States
Ohio State University/Wexner Medical Center
Columbus, Ohio, 43214, United States
Oregon Health & Science University
Portland, Oregon, 97035, United States
University of Pittsburgh Medical Center
Pittsburgh, Pennsylvania, 15213, United States
Medical University of South Carolina
Charleston, South Carolina, 29425, United States
Vanderbilt University Medical Center
Nashville, Tennessee, 37232, United States
University of Texas-Houston
Houston, Texas, 77030, United States
Baylor Scott & White Medical Center
Temple, Texas, 76508, United States
University of Virginia
Charlottesville, Virginia, 22903, United States
Royal Columbian Hospital & University of British Columbia
New Westminster, Canada
Study Officials
- PRINCIPAL INVESTIGATOR
Lisa Leffert, MD
Yale Univesrity
Central Study Contacts
Study Design
- Study Type
- observational
- Observational Model
- ECOLOGIC OR COMMUNITY
- Time Perspective
- RETROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
August 16, 2023
First Posted
September 8, 2023
Study Start
February 22, 2024
Primary Completion (Estimated)
December 31, 2026
Study Completion (Estimated)
December 1, 2028
Last Updated
June 4, 2026
Record last verified: 2026-06