Myelodysplasia commonly referred to as Spina bifida, is a neurological condition in which normal development and function of the vertebrae and nerves around the spinal cord are impaired. It is defined as a developmental defect due to a failure of fusion of the neural tube around the 28th day of gestation (Zipitis and Paschalides 2003). The condition causes some parts of the spinal cord and adjacent body parts to protrude from the rest of the body. The problem can occur at any segment along the spine. The condition changes the physical appearance of the skin surrounding the spinal cord, making it blister-like while a significantly advanced case may also affect walking and other activities. This paper analyzes Spina bifida as a neurological condition with regard to causes, symptoms, diagnosis, treatment, and its prevention and management initiatives.
Spina bifida is more common in Hispanics than any other race. It is significantly less common in Caucasians and Blacks. Also, Spina Bifida is more prevalent in Europe and the Americas compared to Asia and Africa. It mainly affects females and is recurrent among infants. There have been significantly more cases in the 1960s than there are today. The percentage reduction in cases of Spina bifida has moved from a massive 80% for every 1000 individuals in the 1960s to the current 0.62% for every 1000 individuals (Zipitis and Paschalides 2003). On the other hand, 1 out of every 2000 children in the world have Spina bifida. (Meuli et al. 1995). The reduction of more than 20% of the cases today has been largely due to the aggressive prenatal termination of pregnancies. In recent times, a number of researches have been dedicated to the effectiveness of folic acid in the management of Neural Tube Defects, (NTDs). Despite the low number of cases of Spina bifida, there is still cause to address this problem affecting children because it severely damages the children's lives and futures. As such, the affected group and their care givers should be made to understand the problem more comprehensively. Hence, the acceptance of the condition for care givers is important to catering to a patient with Spina bifida. Accepting the patient's conition and dedicating time and effort to caring for them is associated with the increased psychological morbidity for those who offer care. (Zipitis and Paschalides 2003)
Consequently, across the globe, 400,000 fetuses are in one way or another affected by various types of NTDs. Spina bifida being the second most common form of NTD therefore affects a very significant number of fetuses (Wingate et al. 2004). Spina bifida shuts off the spinal cord from its link to the brain, or the layer protecting the fetal spine. Some physicians use α-fetoprotein (AFP) to detect all cases of Spina Bifida, but it is difficult for all Spina bifida cases to be be found through AFP screening and amniocentesis. Due to a deficiency in screening, it is important to use sonography in the identification of the neurological condition.
Types of Spina Bifida
As mentioned above, Spina bifida is a type of NTD, in which the dorsal vertebrae fail to link resulting in a protrusion of both the spinal cord and its meninges. The lumber and sacral regions of the spinal cord are the most affected, hence are the most widespread causes of Spina bifida. There are three general categories of Spina bifida, which are Spina bifida occulta, Meningogecele and Myelomeningocele. Spina bifida occulta is the mildest and most common.