Spectrum of severe skeletal dysplasias in North India

Ratna D Puri1, Seema Thakur, I C Verma

  • 1Department of Genetic Medicine, Sir Ganga Ram Hospital, New Delhi, India. icverma@airtelbroadband.in

Insights

Severe skeletal dysplasias are lethal bone growth disorders. Accurate diagnosis through fetal autopsy and radiography is crucial for genetic counseling and understanding these conditions.

Area of Science:

  • Medical Genetics
  • Fetal Pathology
  • Skeletal Biology

Background:

  • Severe skeletal dysplasias encompass a group of lethal bone growth disorders.
  • These conditions typically result in fetal or infant mortality.
  • Understanding their spectrum is vital for clinical management.

Purpose of the Study:

  • To report the experience with severe skeletal dysplasias diagnosed via fetal autopsies.
  • To analyze cases over a five-year period at a tertiary care center.
  • To highlight the importance of accurate diagnosis in lethal skeletal dysplasias.

Main Methods:

  • Evaluation of 15 cases presenting with short-limbed dwarfism.
  • Inclusion of 13 fetuses from terminated pregnancies.
  • Inclusion of 2 fetuses evaluated postnatally.

Main Results:

  • Diagnosed lethal skeletal dysplasias included short rib dysplasia syndromes (with/without polydactyly), osteogenesis imperfecta type II, thanatophoric dysplasia, campomelic dysplasia, chondrodysplasia punctata (rhizomelic type), and achondrogenesis.
  • These represent a spectrum of severe, lethal skeletal malformations.
  • The study identified specific types of severe skeletal dysplasias.

Conclusions:

  • Precise identification of skeletal dysplasia type is paramount for genetic counseling.
  • Detailed postnatal and radiographic examination of the fetus is essential.
  • Examination of the pelvis, limbs, skull, and spine aids in diagnosis.
Abstract

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