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[Holt-Oram syndrome. Presentation of two cases (author's transl)]
Insights
This study details two new cases of Host-Oram syndrome in one family, highlighting its variable presentation of cardiac and upper limb defects. The findings reinforce its autosomal dominant inheritance and association with other malformations, including rare renal agenesis.
Area of Science:
- Genetics and Developmental Biology
- Cardiology
- Clinical Medicine
Background:
- Host-Oram syndrome is a rare genetic disorder.
- It is characterized by congenital heart defects and upper limb abnormalities.
- The syndrome follows an autosomal dominant inheritance pattern.
Observation:
- Two new cases within the same family were documented.
- Significant variability in the presentation of cardiac and upper limb anomalies was observed.
- One patient presented with unilateral renal agenesis, a rare co-occurrence.
Findings:
- The study confirms the autosomal dominant transmission of Host-Oram syndrome.
- Variable expressivity and incomplete penetrance are characteristic features.
- The association with diverse malformations, such as renal agenesis, is further supported.
Implications:
- Understanding the variable expressivity is crucial for accurate diagnosis and genetic counseling.
- Further research into the genetic underpinnings of Host-Oram syndrome is warranted.
- Recognition of associated anomalies aids in comprehensive patient management.
Abstract:
Authors present two new cases of the Host-Oram syndrome in the same family, characterized by the association of cardiac anomalies and the upper members, both aspects varying greatly, transmissible with a dominant autosomal character. In one case there was unilateral renal agenesis, association described for the second time in literature. Data provided by other authors uphold this, as far as the variable and generally progressive penetration of the syndrome are concerned, as well as the frequent association with other diverse malformations.