Clinical and laboratory characteristics of a group of patients with ataxia-telangiectasia syndrome

Cover Page

Cite item

Full Text

Abstract

This study presents the clinical and laboratory data of 50 patients with ataxia-telangioectasia syndrome (AT) (Louis-Bar syndrome) treated at the Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology (Moscow, Russia) between 2012 and 2021. The study was approved by the Independent Ethics Committee and the Scientific Council of the Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology of Ministry of Healthcare of the Russian Federation. We found that the patients experienced a significant diagnostic delay (the median delay in diagnosis was 4.5 years), although the first typical symptoms of AT were present at an earlier age (the median age was 1.5 years). The majority of patients showed laboratory signs of immunodeficiency, yet only 24% of the children developed severe infections. However, lung infections resulted in bronchiectasis in 16% of the patients and were the cause of death in 4/10 cases. Fifty-two percent of the patients had autoimmune complications, including interstitial lung disease and skin granulomas, and 24% of the patients developed malignant neoplasms. Of patients who underwent testing, 85% had KREC and/or TREC levels below the cutoff values used for neonatal screening of primary immunodeficiency disorders in Russia, which suggests that the majority of AT cases could be diagnosed by neonatal screening. Early diagnosis, multidisciplinary approach and high clinical suspicion for neoplastic manifestations are crucial for the successful management of AT.

About the authors

T. V. Asekretova

Children's Regional Clinical Hospital of Ministry of Healthcare of the Krasnodar Region

Author for correspondence.
Email: tasekretova75@gmail.com
ORCID iD: 0000-0002-1246-5898

Tatiana V. Asekretova, a pediatric oncologist at the Department of Oncology, Hematology and Chemotherapy

1 Pobedy Square, Krasnodar 350007, Russia

Russian Federation

L. H. Anderzhanova

Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology of Ministry of Healthcare of the Russian Federation

ORCID iD: 0000-0002-3247-8688

Moscow

Russian Federation

M. E. Leontyeva

Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology of Ministry of Healthcare of the Russian Federation

ORCID iD: 0000-0002-0799-1025

Moscow

Russian Federation

Yu. A. Rodina

Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology of Ministry of Healthcare of the Russian Federation

ORCID iD: 0000-0001-9857-4456

Moscow

Russian Federation

A. V. Panferova

Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology of Ministry of Healthcare of the Russian Federation

ORCID iD: 0000-0002-8580-3499

Moscow

Russian Federation

M. Yu. Alexenko

Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology of Ministry of Healthcare of the Russian Federation

ORCID iD: 0000-0002-2521-5353

Moscow

Russian Federation

D. E. Pеrshin

Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology of Ministry of Healthcare of the Russian Federation

ORCID iD: 0000-0002-6148-7209

Moscow

Russian Federation

M. B. Khadzhieva

Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology of Ministry of Healthcare of the Russian Federation

Moscow

Russian Federation

S. S. Larin

Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology of Ministry of Healthcare of the Russian Federation

Moscow

Russian Federation

E. V. Raykina

Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology of Ministry of Healthcare of the Russian Federation

ORCID iD: 0000-0002-7634-2053

Moscow

Russian Federation

V. V. Lebedev

Children's Regional Clinical Hospital of Ministry of Healthcare of the Krasnodar Region

ORCID iD: 0000-0001-6934-2349

Krasnodar

Russian Federation

N. V. Myakova

Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology of Ministry of Healthcare of the Russian Federation

ORCID iD: 0000-0002-4779-1896

Moscow

Russian Federation

A. Yu. Shcherbina

Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology of Ministry of Healthcare of the Russian Federation

ORCID iD: 0000-0002-3113-4939

Moscow

Russian Federation

E. V. Deripapa

Dmitry Rogachev National Medical Research Center of Pediatric Hematology, Oncology and Immunology of Ministry of Healthcare of the Russian Federation

ORCID iD: 0000-0002-9083-4783

Moscow

Russian Federation

References

Supplementary files

Supplementary Files
Action
1. JATS XML

Copyright (c) 2022 Asekretova T.V., Anderzhanova L.H., Leontyeva M.E., Rodina Y.A., Panferova A.V., Alexenko M.Y., Pеrshin D.E., Khadzhieva M.B., Larin S.S., Raykina E.V., Lebedev V.V., Myakova N.V., Shcherbina A.Y., Deripapa E.V.

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 International License.