Holt-Oram Syndrome Rare Hand-Heart Disorder

Back ground: Holt-Oram is rare autosomal disorder, clinically characterised by congenital cardiac defects and morphological abnormalities of the upper limbs. Case characteristics:10 days old neonate born to first degree consangunious parents presented with upper limb anomaly and cardiac defects. Obseravations : Hypoplastic left thumb with ASD, VSD and PDAwas present. Message- Neonate with upper limb anomaly should be evaluated for congenital hear disease

Holt-Oram syndrome: a rare case report.

Holt-Oram syndrome is an inherited disorder that causes abnormalities of the hands, arms and heart. The diagnosis can be established clinically. The diagnostic criteria have been validated with molecular testing. An upper-limb malformation involving the carpal bone(s) and, variably, the radial and/or thenar bones-An abnormal carpal bone, present in all affected individuals and identified by performing a posterior-anterior hand x-ray, may be the only evidence of disease. 24 years unbooked Hindu female G2P1+0 presented in OPD at term. Her USG examination showed-small deformed upper limbs with poorly appreciable upper limb skeleton. Induction of labour was done and patient delivered vaginally a female baby with deformed upper limbs. This case emphasizes the importance of proper history taking (family history), early diagnosis of such anomalies and proper counseling the parents.

A Familial Case with Holt-Oram Syndrome with a Novel TBX5 Mutation

Holt-Oram syndrome (HOS) is the most common heart-hand syndrome, which is inherited in an autosomal dominant manner, but most cases are sporadic. This condition is characterized by upper-extremity malformations involving radial-ray, thenar, and carpal bones, and congenital heart malformations including atrial septal defect and ventricular septal defect. It is caused by mutations in the TBX5 gene. In this report, a Korean case with HOS is described, which is inherited from her father. A novel nonsense mutation, p.Glu294*, was identified. This is the first Korean case with HOS confirmed by genetic testing.

A Familial Case with Holt-Oram Syndrome with a Novel TBX5 Mutation

Holt-Oram syndrome (HOS) is the most common heart-hand syndrome, which is inherited in an autosomal dominant manner, but most cases are sporadic. This condition is characterized by upper-extremity malformations involving radial-ray, thenar, and carpal bones, and congenital heart malformations including atrial septal defect and ventricular septal defect. It is caused by mutations in the TBX5 gene. In this report, a Korean case with HOS is described, which is inherited from her father. A novel nonsense mutation, p.Glu294*, was identified. This is the first Korean case with HOS confirmed by genetic testing.

Novel mutations in the TBX5 gene in patients with Holt-Oram Syndrome

The Holt-Oram syndrome (HOS) is an autosomal dominant condition characterized by upper limb and cardiac malformations. Mutations in the TBX5 gene cause HOS and have also been associated with isolated heart and arm defects. Interactions between the TBX5, GATA4 and NKX2.5 proteins have been reported in humans. We screened the TBX5, GATA4, and NKX2.5 genes for mutations, by direct sequencing, in 32 unrelated patients presenting classical (8) or atypical HOS (1), isolated congenital heart defects (16) or isolated upper-limb malformations (7). Pathogenic mutations in the TBX5 gene were found in four HOS patients, including two new mutations (c.374delG; c.678G > T) in typical patients, and the hotspot mutation c.835C > T in two patients, one of them with an atypical HOS phenotype involving lower-limb malformations. Two new mutations in the GATA4 gene were found in association with isolated upper-limb malformations, but their clinical significance remains to be established. A previously described possibly pathogenic mutation in the NKX2.5 gene (c.73C > 7) was detected in a patient with isolated heart malformations and also in his clinically normal father.

Síndrome de Holt-Oram. Un caso clínico por mutación de novo

Introducción. El objetivo de este trabajo es informar el diagnóstico clínico del síndrome de Holt-Oram (SHO), el ecocardiográfico, el tratamiento neonatal endovascular y la cirugía cardiovascular. Caso clínico. Se informa un caso del SHO "por mutación de novo" en un lactante del sexo femenino con malformación ósea (MO); sindactilia en mano derecha, asociada con cardiopatía congénita (CC), hipoplasia de ventrículo derecho y estenosis pulmonar infundibular con persistencia del ducto arterioso y comunicación interauricular tipo ostium secundum. La mejoría neonatal fue obtenida por plastia endovascular de la arteria pulmonar. Al octavo mes de edad se realizó plastia del tracto de salida del ventrículo derecho; infundibular-anular, con buena evolución. Los antecedentes familiares en consanguíneos, 3 generaciones investigadas con MO y CC única o asociadas, fueron negativos. Se discute la importancia de genes, cromosomas y factores ambientales en la etiopatogenia del SHO por mutación de novo. Conclusión. La cirugía endovascular temprana y la "cardiocirugía electiva-paliativa", permiten en la actualidad una supervivencia en mejores condiciones clínicas y hemodinámicas con pronóstico vital a mediano y largo plazo más favorable.

Introduction. We inform the clinical and echocardiographic findings in a patient with Holt-Oram syndrome (HOS) and the evolution after treatment with cardiovascular surgery. Case report. It was a the novo clinic case of HOS, in a newborn girl with a bone malformation in the right hand, sindactilia in 2 fingers associated with congenital heart disease: hipoplasia of the right ventricle and lung arterial stenosis, with persistency of the arterial duct and interauricular communication type ostium secundum. The improvement in the newborn was obtained with endovascular plastia of the lung artery and palliative elective surgery at the 8 month of age. Conclusions. Early endovascular and palliative elective surgery permit a better prognosis in the infants with HOS.

A case of the Holt-Oram Syndrome which was Prenatal Diagnosed by Ultrasonography in Affected Mother / 대한산부인과학회잡지

The Holt-Oram syndrome or cardiomelic syndrome is characterized by the association of upper limb and heart malformations. Most frequently, abnormalities of the thumb and secundum atrial septal defects are associated with the disease. The mode of inheritance is autosomal dominant. The etiology of this disease is unknown but is most likely of multifactorial origin. Here we report a case Holt-Oram syndrome with affected mother which was diagnosed at 18th gestational weeks by prenatal ultrasonograpy. Fetal ultrasonography revealed abnormalities of upper limbs, and heart. The upper limbs were shorter than normal, syndactyly of both hands were seen and both wrists were markedly angulated. Ventricular septal defect was suspicious. After genetic counselling her pregnancy was terminated at 22nd gestational week.

A Case of the Holt-Oram Syndrome with Unaffected Parents Diagnosed by Antenatal Ultrasonography / 대한산부인과학회잡지

Holt-Oram Syndrome is an autosomal dominant disorder characterized by the association of upper-limb abnormalities and congenital heart disease. A woman with no family history of genetic disease underwent antenatal sonography at 27 weeks' menstrual age to screen for fetal anomalies. Ultrasonography revealed abnormalities in the upper limbs. The limb abnormalities included abscence of bilateral thumbs and radius: the left humus was short. Pregnancy termination was performed. The postnatal chromosomal analysis revealed a normal 46XX karyotype and the autopsy finding confirmed the Holt-Oram syndrome. We report a case of Holt-Oram Syndrome in fetus with unaffected parents with brief of the literatures.