Neural tube defects (NTDs) are serious birth defects that affect the central nervous system. They occur due to a disruption in the normal development of the nervous system during embryogenesis. Although largely preventable, they are the second most common type of human congenital abnormality and pose a significant threat to global morbidity, disability, mortality, and financial expenses. According to estimates from 2015, approximately 260,100 newborns around the world are born annually with NTDs, excluding early spontaneous fetal losses. Additionally, there were an estimated 117,100 NTD-affected pregnancies that ended in stillbirth or elective terminations of pregnancy for fetal anomalies. Of the NTD-affected live births, approximately 117,900 resulted in under five deaths. The disability-adjusted life years from NTDs exceed 8.6 million.
NTDs have both environmental and genetic causes. Folic acid
supplementation during the periconceptional period is a well-known primary
prevention method, but its implementation lags behind the knowledge about
prevention. However, NTDs have been neglected and have recently become the
subject of limited research. Furthermore, surveillance efforts for NTDs
continue to be insufficient, with high prevalence rates persisting worldwide.
Robust surveillance data are essential for the prevention and monitoring of NTDs.
This chapter provides an updated discussion on the epidemiology, embryology,
risk factors, diagnosis, associated defects, management, surveillance, and
prevention strategies of NTDs, with a particular emphasis on lethal NTDs.
Furthermore, to illustrate the clinical presentation of lethal NTDs, this
chapter includes case presentations of different types of lethal NTDs with
typical associated defects in singleton and multiple pregnancies that resulted
in stillbirth.
Author (s) Details
Dr. Alemayehu Shiferaw
Lema
Department of Forensic Medicine and Toxicology, St. Paul’s Hospital
Millennium Medical College, Addis Ababa, Ethiopia.
Dr. Jemila Salih
Suleyman
Department of Forensic Medicine and Toxicology, St. Paul’s Hospital
Millennium Medical College, Addis Ababa, Ethiopia.
Dr. Amanuel Oljira
Raga
Department of Forensic Medicine and Toxicology, St. Paul’s
Hospital Millennium Medical College, Addis Ababa, Ethiopia.
Suresh Kumar Rajamani
Sekar (Assistant Professor)
College of Natural Sciences, Division of Forensic Toxicology, Arba Minch
University, Arba Minch, Ethiopia.
Please see the book
here:- https://doi.org/10.9734/bpi/mria/v7/475
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