Evaluation of conus medullaris level in newborn infants

Authors : Bülent YILDIZ, Gaffari TUNÇ, Burçak SÖYLEMEZ

Pages : 629-636

Doi:10.17826/cumj.1241867

View : 56 | Download : 129

Publication Date : 2023-07-02

Article Type : Research Paper

Abstract :Purpose: Previous studies have reported that the conus medullaris insert ignore into journalissuearticles values(CM); is located between T12 and L2 in most adults, but no significant ascent has been observed during childhood. There is evidence that the normal position of the CM in an adult is acquired at birth in the majority of cases. Studies have shown that there are differences in CM levels in neonates. This situation causes problems for interventional procedures in the neonatal period. The aim of this study is to determine CM levels in preterm/term neonates using ultrasound insert ignore into journalissuearticles values(US);. Materials and Methods: Newborn infants insert ignore into journalissuearticles values(gestational age: 24–43 weeks); admitted to the neonatal intensive care unit between March 2020 and June 2021 were evaluated for CM levels by the postnatal US. Infants with central nervous system abnormalities, dysmorphic features, somatic or various genetic diseases, or their parent’s refusal to participate were excluded from the study. Results: Of the 189 neonates infants included in our study, 85 insert ignore into journalissuearticles values(44.6%); were female, 104 insert ignore into journalissuearticles values(55.4%); were male, 139 insert ignore into journalissuearticles values(73.54%); were preterm insert ignore into journalissuearticles values(24–36 weeks);, and 50 insert ignore into journalissuearticles values(26.46%); were term insert ignore into journalissuearticles values(37–42 weeks); neonates. As a result of the US performed on the first day of 189 neonates, CM levels, 31 insert ignore into journalissuearticles values(16.4%); were L1, 31 insert ignore into journalissuearticles values(16.4%); were L1-2, and 71 insert ignore into journalissuearticles values(37.6%); were L2. There is a strong correlation between birth weight and birth week insert ignore into journalissuearticles values(r 0.84);. There is a negative relationship between birth weight and CM level insert ignore into journalissuearticles values(r -0,20);, gestational age, and CM level insert ignore into journalissuearticles values(r -0,23);. Conclusion: Conus medullaris level was negatively correlated with gestational age and increased with advancing gestational age. In addition, the CM level shows a slower rise at 28-40 weeks of postmenstrual age and reaches the normal level insert ignore into journalissuearticles values(L1-L2); in the neonatal period, as in adults. Knowing the level of the CM in the newborn period will ensure that spinal procedures such as lumbar puncture to be applied to the spinal region can be performed safely.
Keywords : Yenidoğan bebek, ultrasound, Konus medullaris düzeyi