Overview
Triploidy refers to an abnormal chromosomal condition characterized by three sets of chromosomes, often leading to severe developmental abnormalities and high perinatal morbidity and mortality 12.Diagnosis
Key Diagnostic Criteria: Large placenta with hydatidiform changes, edematous fetus, macroglossia, facial clefts, eye defects, dysplastic cranial bones, omphalocele, meningomyelocele, syndactyly, and genital maldevelopment in males 2.
Recommended Tests: Chromosomal analysis to confirm triploidy 1.Management
Supportive Care: Focus on managing symptoms and providing palliative care due to high mortality rates 12.
No Specific Therapies: No curative treatments are typically available; management is largely supportive 12.Special Populations
Pregnancy: Hydatidiform degeneration of the placenta in triploid pregnancies can lead to intrauterine growth retardation and fetal death 1.
Pediatrics: Near-term stillbirths and newborns with triploidy exhibit severe congenital anomalies and poor prognosis 2.Key Recommendations
Confirm diagnosis through chromosomal analysis to identify triploidy 1 (Evidence: Strong).
Focus on supportive care measures to manage symptoms and improve quality of life 12 (Evidence: Moderate).
Monitor for placental abnormalities indicative of hydatidiform degeneration in pregnancies suspected of triploidy 1 (Evidence: Expert opinion).References
1 Dudakov E, Perlman M, Ornoy A, Beyth Y, Cohen MM. Triploidy in man: a clearly recognizable syndrome?. Israel journal of medical sciences 1977. link
2 Wertelecki W, Graham JM, Sergovich FR. The clinical syndrome of triploidy. Obstetrics and gynecology 1976. link