Kaleelullah Roohi Afshan, Garugula Neha
Dentistry, California Institute of Behavioral Neurosciences & Psychology, Fairfield, USA.
Dentistry, Dr. Nandamuri Taraka Rama Rao University of Health Sciences, Virginia, USA.
Cureus. 2021 Feb 5;13(2):e13149. doi: 10.7759/cureus.13149.
Congenital anomalies can occur during the developmental stages of the embryo, from abnormal genetics passed on from the parents or from vivid environmental factors. While advanced technologies are able to detect chromosomal abnormalities, there are many unknown non-genetic variants. Teratogenic factors pose a greater risk to the fetus, as these abnormalities may go undetected until birth. These malformations are the origin of the infant's postnatal illness and disability. The defects can also lead to mortality. The loss can also affect families, as they are affected by not only the loss but also financially. Most of the teratogenic-induced anomalies, once detected, maybe rehabilitated naturally. Those who do require medical intervention pose their own risks, similar to those of infections. Therefore, environmental exposure to teratogens can create long-lasting effects that range from infertility, intrauterine growth restriction, structural defects, and functional central nervous system abnormalities that may lead to fetal death.
先天性异常可能发生在胚胎发育阶段,原因包括父母遗传的异常基因或显著的环境因素。虽然先进技术能够检测染色体异常,但仍有许多未知的非遗传变异。致畸因素对胎儿构成更大风险,因为这些异常可能在出生前都未被发现。这些畸形是婴儿出生后患病和残疾的根源。这些缺陷还可能导致死亡。这种损失也会影响家庭,因为他们不仅要承受丧子之痛,还要面临经济压力。大多数由致畸因素引起的异常,一旦被发现,可能会自然恢复。那些确实需要医疗干预的情况也有其自身风险,类似于感染的风险。因此,环境接触致畸原会产生持久影响,范围从不孕、宫内生长受限、结构缺陷到功能性中枢神经系统异常,甚至可能导致胎儿死亡。