Prognostic Model of Postnatal Circulation in Pulmonary Atresia-critical Stenosis With Intact Ventricular Septum
Development and Validation of a Prognostic Model of Postnatal Circulation in Fetuses With a Diagnosis of Pulmonary Atresia-critical Stenosis With Intact Ventricular Septum A Prospective Observational Cohort Study
1 other identifier
observational
150
2 countries
2
Brief Summary
Pulmonary atresia (PA)/critical stenosis (CS) with intact ventricular septum (PA/CS-IVS) is a rare congenital heart disease (CHD), that presents heterogeneously. Prognosis is conditioned by the possibility of achieving a primary repair with biventricular circulation (BV) or a one-and-a-half ventricle solution vs. a palliative approach bound to a univentricular (UV) circulation in which both survival and quality of life are significantly impaired. Predicting UV circulation prenatally is still a challenge. The aim of this study is: 1/ to evaluate the natural history of the disease and develop a prognostic model for the prediction of transplantation-free survival with a biventricular or a one-and-a-half repair at 2 years postnatal age 2/ To develop a model to predict the risk of right ventricle dependent coronary circulation 3/ To evaluate prenatal and postnatal outcomes in non-intervened fetuses with a confirmed postnatal diagnosis of PA-CS/IVS including Intrauterine death, neonatal/Infant death, number of required postnatal procedures, need for oxygen support, need for cardiac transplantation
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for all trials
Started Feb 2024
Longer than P75 for all trials
2 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
Study Start
First participant enrolled
February 1, 2024
CompletedFirst Submitted
Initial submission to the registry
March 18, 2024
CompletedFirst Posted
Study publicly available on registry
July 31, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 1, 2028
ExpectedStudy Completion
Last participant's last visit for all outcomes
December 31, 2029
September 15, 2025
September 1, 2025
4 years
March 18, 2024
September 8, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Prediction of postnatal circulation
Transplantation-free survival with a non-univentricular circulation (biventricular or a one-and-a-half repair) at 2 years postnatal age: yes/no
3 years (1 recruitment, 2 follow-up)
Secondary Outcomes (7)
Prediction of coronary circulation
3 years (1 recruitment, 2 follow-up)
Intrauterine death
3 years (1 recruitment, 2 follow-up)
Neonatal/Infant death in the first 2 years
3 years (1 recruitment, 2 follow-up)
Number of required postnatal surgical and catheter interventional procedure
3 years (1 recruitment, 2 follow-up)
Type of required postnatal surgical and catheter interventional procedures
3 years (1 recruitment, 2 follow-up)
- +2 more secondary outcomes
Study Arms (2)
Retrospective cohort
Retrospective cases that meet all the inclusion criteria and none of the exclusion criteria from 2013 until 2023 will be included for model development. They should be non-intervened cases in order to assess the natural history of the disease.
Prospective cohort
Prospectively recruited cases will be included when meeting all the inclusion criteria and none of the exclusion ones. This cohort will serve as a validation cohort for the previously developed model. The nature of the study is observational. Clinicians will not be given the result of the model during the study and clinical practice will be routine.
Interventions
Evaluation of natural history of the disease
Eligibility Criteria
Screening data: All pregnant women with a fetus with suspected PA-CS/IVS will be screened for eligibility. If they meet all the inclusion criteria and none of the exclusion ones, they will be offered to participate. A complete count of screened, eligible, and included participants will be detailed in the final report of the study. Eligibility: As described in the next section, cases must meet all the inclusion criteria, and none of the exclusion ones.
You may qualify if:
- Absence of flow at the pulmonary valve (PA) or presence of thickened and domed. pulmonary valve cusps with a pinhole jet of flow.
- Doppler evidence of ductal-dependent pulmonary circulation.
- Intact ventricular septum.
You may not qualify if:
- Poor imaging windows and incomplete/poor quality scan
- Termination of pregnancy
- Cases initially included that undergo prenatal pulmonary valvuloplasty later on in pregnancy.
- Unconfirmed PA-CS/IVS at birth.
- Functional PA-CS/IVS (Ebstein malformation, monochorionic twins)
- Any associated cardiac defect except persistent left superior vena cava and aberrant right subclavian artery.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (2)
Hospital Universitario 12 de Octubre
Madrid, 28041, Spain
University of Gothenburg
Gothenburg, Sweden
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Cecilia Villalaín González, MD PhD
Instituto de investigación imas12
- PRINCIPAL INVESTIGATOR
Alberto Galindo Izquierdo, MD PhD
Instituto de investigación imas12
Central Study Contacts
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
March 18, 2024
First Posted
July 31, 2025
Study Start
February 1, 2024
Primary Completion (Estimated)
February 1, 2028
Study Completion (Estimated)
December 31, 2029
Last Updated
September 15, 2025
Record last verified: 2025-09
Data Sharing
- IPD Sharing
- Will not share