Rubinstein-taybi syndrome: Clinical profile of 11 patients and review of literature.

Background: Rubinstein-Taybi syndrome (RSTS) is a rare congenital neurodevelopmental disorder, characterized by postnatal growth deficiency, typical dysmorphic features, broad thumbs and toes, and mental retardation. Very few cases are reported in literature from developing countries. Diagnosis is often delayed due to non-familiarity with the characteristic features of this syndrome. Aims: To report 11 cases of RSTS and to review the current literature. Settings And Design: Retrospective study conducted in genetic and metabolic unit of a tertiary care teaching hospital in north India over a period of 3½ years. Materials And Methods: 11 patients with diagnosis of RSTS were identified, and their case sheets were reviewed. Results: Developmental delay was presenting complaint in 10 patients, and seizure in 1 case. 7 patients had microcephaly (head circumference below −3 SD), and a prominent beaked nose was seen in 9 patients. The intelligence quotient (IQ) varied from 22-62 in 7 patients who had mental retardation. The most notable features in hands were broadness, shortening, and flattening of the distal phalanx of thumbs or great toes. Additionally, we also noted webbing of neck, microphthalmia, and pachygyria (on MRI brain) in 1 patient each. Conclusions: The diagnosis of RSTS is primarily clinical and based on characteristic phenotype that is often combined with a variety of somatic anomalies. An early diagnosis facilitates appropriate genetic counseling and in planning the management.

Síndrome de Rubinstein-Taybi / The Rubistein-Taybi syndrome

Se presentan las características oftalmológicas y clínicas de una paciente que se concluyó con la presencia del síndrome de Rubinstein-Taybi. Este se incluye dentro de los síndromes genéticos y está basado en el fallo del cromosoma 16. La presentación es poco frecuente y no bien conocida, ya que posee características fundamentales que lo distinguen: dedos de los pies grandes y gruesos, pulgares anchos, exceso de pelo en el cuerpo (hirsutismo), microcefalia, boca estrecha, pequeña con dientes apiñados, nariz prominente o curva, cejas arqueadas y pobladas con pesta±as largas e inclinación palpebral de los ojos.

The ophthalmologic and clinical characteristics of a patient with Rubistein-Taybi syndrome were presented. This is considered one of the genetic syndromes and is based on chromosome 16 failure. The presentation of this syndrome is rather unusual and barely known since the fundamental characteristics that differentiate it are big thick toes, big thumbs, hirsutism, microcephaly, small narrow mouth full of packed teeth, prominent nose, raised and hairy eyebrows, long eyelash and palpebral inclination of eyes.

Association of assisted reproductive technology with twinning and congenital anomalies.

Recently many reports have been published on the use of intracytoplasmic sperm injection (ICSI) and the increased risk of congenital major malformations or syndromes. We present three cases with Goldenhar syndrome (one of them a twin pair) and one case with Rubinstein-Taybi syndrome (RTS), also a twin pair. All four female cases are derived from ICSI. Goldenhar syndrome with ICSI pregnancy has been reported previously but as far as we know, RTS has not been described in association with assisted reproductive technology (ART). The four new cases reported herein will contribute to a better understanding whether ICSI pregnancy increases congenital malformations.