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Nonimmune hydrops fetalis: a multidisciplinary approach.
D P Carlton1, B C McGillivray, M D Schreiber
1Department of Pediatrics, University of Utah School of Medicine, Salt Lake City.
Clinics in Perinatology
|December 1, 1989
Summary
Diagnosing nonimmune hydrops in utero indicates a poor prognosis, with limited treatment options. Survivors often require intensive neonatal care, and only cases due to supraventricular tachycardia show high survival rates.
Area of Science:
- Perinatology
- Neonatology
- Medical Genetics
Background:
- Nonimmune hydrops fetalis (NIHF) presents a significant challenge in prenatal diagnosis and management.
- The prognosis for fetuses diagnosed with NIHF in utero is generally considered grave.
- Identifying the underlying cause is crucial for pregnancy management decisions.
Purpose of the Study:
- To review the prognosis and management strategies for nonimmune hydrops fetalis diagnosed antenatally.
- To highlight the critical need for specialized neonatal care and resuscitation for affected infants.
- To discuss the implications of different etiologies, including idiopathic NIHF and supraventricular tachycardia, on survival.
Main Methods:
- Retrospective review of cases with in utero diagnosis of nonimmune hydrops fetalis.
- Analysis of antenatal evaluation findings and their impact on management.
- Assessment of neonatal outcomes, including mortality, need for intensive care, and specific causes of death.
- Evaluation of survival rates based on the etiology of NIHF.
Main Results:
- In utero diagnosis of NIHF is associated with a grave prognosis, with many infants succumbing in the early neonatal period.
- Respiratory insufficiency, often due to pulmonary hypoplasia, is a major cause of mortality.
- Idiopathic NIHF carries a similarly poor prognosis as other forms.
- Survival is significantly higher only in cases secondary to supraventricular tachycardia.
Conclusions:
- Antenatal diagnosis of NIHF necessitates careful evaluation to guide pregnancy management, though in utero therapies are limited.
- Neonatal resuscitation and intensive care are essential for affected infants, with mechanical ventilation frequently required.
- Genetic counseling is recommended for parents to understand outcomes and recurrence risks. Postmortem examinations and placental pathology are vital for all deceased infants.