Congenital heart diseaseCohort study

Partnership Model of Regionalized Care for Congenital Heart Disease in Resource-Limited Settings: Results From the ASSIST Project

CirculationPublished

  • Retrospective cohort study
  • before-after comparison
  • contemporaneous comparison

Authors' conclusion

Interhospital partnership appears to be a useful and feasible method to deliver regionalized quality care for pediatric patients with CHD in resource-limited regions.

Study context

Population
Pediatric patients with congenital heart disease (CHD) treated in low-resource regions in China
Participants
11,895 patients
Exposure
Post-ASSIST vs Shanghai Children's Medical Center
  • Pre-ASSISTn = 3,333reference
  • Post-ASSISTn = 1,566
  • Shanghai Children's Medical Centern = 6,996
Outcome
Composite of:
  • Postoperative mortality
  • Multiorgan dysfunction

Main finding

As reported in the abstract

Postoperative mortality and multiorgan dysfunction

P = 0.13

Observational data: associations, not effects.

Secondary outcomes

OutcomeOR (95% CI)P value
Primary outcome risk factors in low-resource regions — Lower family educational attainment vs Pre-ASSIST1.50 (1.21–1.85)P < 0.001
Primary outcome risk factors in low-resource regions — Lower annual household income vs Pre-ASSIST1.65 (1.14–2.38)P = 0.008
OutcomePre-ASSISTPost-ASSISTShanghai Children's Medical CenterEstimateP value
Delayed treatment (>6 months from recommendation to surgery)43.2%23.3%Not reported in the abstractP < 0.001

Primary outcome risk factors in low-resource regions

Could be mitigated by the ASSIST project in a multivariable model

Case mix after vs before ASSIST

More complex cases (35.5% versus 7.3%)
P < 0.001
Neonatal surgery (9.1% versus 1.5%)
P < 0.001

Original publication

Partnership Model of Regionalized Care for Congenital Heart Disease in Resource-Limited Settings: Results From the ASSIST Project. Circulation. Published 30 June 2025. doi:10.1161/circulationaha.125.074298

Summarised from the published abstract; every number is checked against it