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Newborn Screening for Congenital Hypothyroidism and Congenital Adrenal Hyperplasia

  • ICMR Task Force on Inherited Metabolic Disorders
Original Article

Abstract

Objective

The Task Force formed by ICMR aimed at studying the prevalence of congenital hypothyroidism and congenital adrenal hyperplasia, the template disorders included in all newborn screening programs, and to evaluate the unidentified challenges in its execution in health care services. It also intended to evaluate the feasibility of newborn screening with regards to different geo-ethnic regions from India.

Methods

Five metropolitan centers identified had further 2 to 11 centers; both the urban and the rural sectors were included and were considered representative of the northern, southern, eastern, western and central parts of the country. A uniform protocol was developed to screen 100,000 neonates (20,000 from each center) beyond 34 wk of gestation for congenital hypothyroidism and congenital adrenal hyperplasia. Samples were collected by heel prick after 24 h of age. The parameters studied were prevalence of these diseases, percentage births covered, the turnaround time, recall rate and follow up of identified neonates as feasibility indicators. All centers participated in the Newborn Screening Quality Assurance Programme (NSQAP), of CDC, Atlanta, USA.

Results

In the participating hospitals attached to the centers, 151,765 babies were intramural births. Of these 143,344 (94.5%) babies were eligible for screening. Amongst these births, a sample of 104,094 (73.2%) babies could be covered by the personnel. Overall prevalence of congenital hypothyroidism (CH) was 1 in 722 births; if babies with transient hypothyroidisms were excluded the prevalence was calculated to be 1:1130. The collective prevalence of congenital adrenal hyperplasia was 1 in 5762 with marked regional differences.

Conclusions

This collaborative study has demonstrated the feasibility of establishing a network of committed laboratories and scientists for executing newborn screening. This is expected to have a potential impact on morbidity and mortality and therefore this should be immediately taken up in a national newborn screening program.

Keywords

Newborn screening Congenital hypothyroidism Congenital adrenal hyperplasia India 

Notes

Acknowledgements

Writing Group: Dr. Seema Kapoor, Dr. Madhulika Kabra, Dr. Mani Kalaiwani, Dr. Roli Mathur.

Steering Group: Late Dr. S. S. Aggarwal (Chairperson), Dr. I. C. Verma, Dr. Veena Kalra, Dr. Vasantha Muthuswamy and Dr. Vijay Kumar.

Co-Investigators:

AIIMS, New Delhi: Dr. Vinod Paul, Dr. Ashok Deorari, Dr. Sheffali Gulati, Dr. Ramesh Agarwal, Dr. Vandana Jain, Dr. Suman Vashishst, Dr. Suneeta Mittal;

MAMC, Delhi: Dr. AP Dubey, Dr. Siddharth Ramji, Dr. Sangeeta Yadav, Dr. Swaraj Batra, Dr. Sangeeta Gupta;

KEM Hospital, Mumbai: Dr. Keya Lahiri, Dr. Ruchi Nanavati;

MEDISCAN, Chennai: Dr. Sujatha Jagadeesh, Dr. Sudha Rathna Prabhu, Dr. K Saraswathi, Dr. Rathna Kumari;

IPGMER, Kolkata: Dr. Mitali Chatterjee, Dr. S. C. Biswas, Dr. Indranil Chakraborty, Dr. Tapas Som, Meena Jaishankar, Dr. Satinath Mukhopadhyay;

Sandor, Hyderabad: Dr. A. I. Dherai and Dr. Srimannarayana Rao;

NIMHANS, Bangalore: Dr. D. Nagaraja.

Special Thanks to Mrs. Esha Chopra, Dr. Pallavi Vats, Mr. Amit Juneja, Dr. Neerja Gupta, Dr. Sudha Ratna Prabhu and all the staff in the project for its execution.

Indebted to: Late Dr. Taranath Shetty, NIMHANS, Bangalore and Late Dr. Suman Vashisht from AIIMS, New Delhi.

Contributions

RRD, MK, SK, MM, AS, SS: Regional centres collected, analyzed the data and participated in patient care; RMP: Data coordination of the study; RM: Overall coordination of the study; PKN: Quality Assurance; RC: Laboratory tests; SK, MK, RM, KM, RMP: Wrote the manuscript; SK and MK will act as guarantors of the paper.

Compliance with Ethical Standards

Conflict of Interest

None.

Source of Funding

Indian Council of Medical Research.

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Copyright information

© Dr. K C Chaudhuri Foundation 2018

Authors and Affiliations

  • ICMR Task Force on Inherited Metabolic Disorders
    • 1
  1. 1.ICMR Task Force on Inherited Metabolic DisordersNew DelhiIndia

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