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Updated: Aug 19, 2026

Functional and Morphological Assessment of Diaphragm Innervation by Phrenic Motor Neurons
Published on: May 25, 2015
Unilateral agenesis of the diaphragm
1Department of Surgery, Hospitals for Sick Children, Queen Elizabeth Hospital, London, England.
Insights
Congenital diaphragmatic hernia survival in infants is 68%, depending more on cardiopulmonary function than defect size. A Dacron prosthesis is recommended for diaphragmatic defect repair.
Area of Science:
- Pediatric Surgery
- Neonatal Care
- Thoracic Surgery
Background:
- Congenital diaphragmatic hernia (CDH) is a serious birth defect.
- Infant survival rates for CDH have historically been a significant concern.
- Understanding prognostic factors is crucial for improving outcomes.
Purpose of the Study:
- To analyze survival rates and prognostic factors in infants treated for CDH.
- To evaluate the role of diaphragmatic defect size and agenesis in CDH prognosis.
- To assess the efficacy of Dacron prostheses in diaphragmatic defect repair.
Main Methods:
- Retrospective analysis of 37 infants with CDH over 4.5 years.
- Evaluation of survival rates based on cardiopulmonary function and defect characteristics.
- Assessment of outcomes in patients with diaphragmatic agenesis.
- Review of surgical repair methods, including Dacron prostheses.
Main Results:
- Overall survival rate for CDH was 68%.
- Cardiopulmonary function was a more significant predictor of survival than defect size.
- Infants with unilateral agenesis did not have a significantly poorer prognosis; 40% survived.
- Ten patients with unilateral agenesis showed a survival rate of 40%.
Conclusions:
- Infant survival in CDH is primarily linked to cardiopulmonary status.
- Diaphragmatic agenesis does not necessarily indicate a poor prognosis.
- Dacron prostheses are a viable option for reconstructing the diaphragm in CDH cases.
Abstract:
During a period of 4 1/2 years, 37 infants with congenital diaphragmatic hernia were treated. The overall survival rate was 68%. Survival depended more on cardiopulmonary function than the size of the diaphragmatic defect. There was little evidence that infants with agenesis of the diaphragm formed a special group with a poor prognosis, and four of the ten patients with unilateral agenesis survived. A Dacron prosthesis is recommended as a substitute for the missing diaphragm.
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