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Patau's Syndrome, also known as Trisomy 13, is a severe genetic condition caused by the presence of an extra copy of chromosome 13. This chromosomal abnormality results in severe intellectual disability and multiple, life-threatening congenital defects.
read more about pataus syndrome ...The condition is genetically defined by the presence of three copies of chromosome 13 in every cell of the body (instead of the normal two). This extra genetic material severely disrupts normal development of the brain and heart, leading to a high rate of miscarriage and stillbirth, and is rarely compatible with long-term life.
The profound developmental challenges involve nearly every organ system. Infants are often born with severe heart defects (like ventricular septal defects), profound intellectual disability, and central nervous system anomalies. Because of the severity of these internal defects, medical intervention is focused on palliative care and supporting the family, as the condition is incompatible with prolonged survival beyond infancy.
Common physical abnormalities include a small head size, low-set ears, severe structural heart defects, and profound intellectual disability. Distinctive hand features include overlapping fingers and tightly clenched hands that are difficult to straighten. Facial defects such as a cleft lip and cleft palate are also characteristic.
Patau's Syndrome directly impacts eye health, as ocular defects are common. These defects can include small or missing eyeballs (microphthalmia or anophthalmia), iris or retina defects, and sometimes fusion of the eyeballs, which are severe congenital anomalies.
Management is focused on providing comfort and treating life-threatening medical conditions. Early intervention programs are used to assist with developmental delays and physical therapy. The care is highly supportive.
Yes, Trisomy 13 is a severe condition that significantly affects all major organ systems and central nervous system development.
Yes, genetic counseling is available for parents to understand the risks for future pregnancies.
Yes, the condition can often be detected during prenatal screening or diagnostic testing like amniocentesis.
High-risk prenatal screenings require a maternal-fetal medicine consultation. Patau's syndrome often causes "Microphthalmia" (abnormally small eyes) or "Anophthalmia" (missing eyes). Specialist neonatal care is required immediately upon birth to manage multisystem complications.
NHS. Patau's Syndrome (nhs.uk). 2025.
MedlinePlus Genetics. Trisomy 13 (medlineplus.gov). 2024.
StatPearls. Patau Syndrome (ncbi.nlm.nih.gov). 2025.
GARD. Trisomy 13 Information (rarediseases.info.nih.gov). 2025.