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Year : 2021  |  Volume : 1  |  Issue : 3  |  Page : 199-201

Neonatal marfan syndrome due to missense mutation in exon 26 of fbn1 gene

Consultant Neonatologist, Neoplus ICU and Children Hospital, Surat, Gujarat, India

Correspondence Address:
Seema Balasubramaniam
Neoplus ICU and Children Hospital, LP Savani Road, Surat - 395 009, Gujarat
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ipcares.ipcares_120_21

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Background: Neonatal Marfan syndrome (MFS) lies at the most severe end of the MFS clinical spectrum, sharing some characteristics of MFS, but with a more severe clinical phenotype, slightly variable genotype, and a poor prognosis. We report a case of neonatal MFS diagnosed antenatally and in whom diagnosis was established postnatally by clinical exome sequencing. Clinical Description: A routine antenatal ultrasonography identified a dilated aortic root, oligohydramnios, fetal femur, and long bones length >99th percentile for the period of gestation findings in a fetus at 35 weeks of gestation. The baby was born by a cesarean section due to nonprogress of the labor. At birth, he had multiple anomalies including bilaterally cloudy cornea, bluish sclera, long slender fingers, hyperflexion of the wrist, ankle joints, and pulsatile precordium. Management: The patient developed severe respiratory distress immediately after birth and was intubated and initiated on positive pressure ventilation. The baby was supportive of fluid and inotropic management. The diagnosis was established based on characteristic echocardiographic findings and identification of a likely pathogenic variant disrupting the p.Cys1068 amino acid residue in FBN1, located at exon 26, which is the “neonatal” region known to be associated with neonatal MFS. The baby succumbed. Conclusion: Although neonatal MFS has a poor prognosis, multidisciplinary intervention is required to determine the best course of action.

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