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Original Article
Neonatology (Perinatology)
Effects of carnosine and hypothermia combination therapy on hypoxic-ischemic brain injury in neonatal rats
Jun Chul Byun, Seong Ryong Lee, Chun Soo Kim
Clin Exp Pediatr. 2021;64(8):422-428.   Published online February 24, 2021
Question: How can we further improve the neuroprotective effects of hypothermia in newborns with hypoxic-ischemic (HI) brain injury?
Finding: Combination carnosine and hypothermia therapy effectively reduced brain damage in neonatal rats. The in situ zymography, terminal deoxynucleotidyl transferase-mediated dUTP nick end-labeling assay, and immunofluorescence study results showed that neuroprotective effects were achieved with combination therapy only.
Meaning: Carnosine and hypothermia have synergistic neuroprotective effects against brain damage following HI injury
Predictive factors of death in neonates with hypoxic-ischemic encephalopathy receiving selective head cooling
Behnaz Basiri, Mohammadkazem Sabzehei, Mohammadmahdi sabahi
Clin Exp Pediatr. 2021;64(4):180-187.   Published online August 27, 2020
Question: What is the most important factor that increases mortality in infants with hypoxic-ischemic encephalopathy (HIE) who receive selective head cooling?
Finding: All cases of neonatal mortality were severe HIE (stage 3), and a severely abnormal amplitude-integrated electroencephalography and mortality were increased with the need for advanced neonatal resuscitation upon delivery.
Meaning: Advanced neonatal resuscitation affects HIE outcomes, and medical personnel should be prepared to provide the best intervention.
Clinical impact of admission hypothermia in very low birth weight infants: results from Korean Neonatal Network
Na Hyun Lee, Soo Kyung Nam, Juyoung Lee, Yong Hoon Jun
Clin Exp Pediatr. 2019;62(10):386-394.   Published online May 22, 2019
Background: Preterm infants have difficulty maintaining body temperature after birth. However, clinical guidelines advocate that neonatal body temperature should be maintained at 36.5°C–37.5°C.
Purpose: We aimed to investigate the incidence of admission hypothermia in very low birth weight (VLBW) infants and to determine the association of admission temperature with in-hospital mortality and morbidities. Methods: A cohort study using prospectively collected data involving...
The impact of a quality improvement effort in reducing admission hypothermia in preterm infants following delivery
Han Saem Choi, Soon Min Lee, Hoseon Eun, Minsoo Park, Kook-In Park, Ran Namgung
Clin Exp Pediatr. 2018;61(8):239-244.   Published online August 15, 2018

Purpose: Hypothermia at admission is associated with increased mortality and morbidity in preterm infants. We performed a quality improvement (QI) effort to determine the impact of a decrease in admission hypothermia in preterm infants. Methods: The study enrolled very low birth weight (VLBW) infants born at Gangnam Severance Hospital between January 2013 and December 2016. This multidisciplinary QI effort included the...
Outcome of inflammatory response after normothermia during cardiopulmonary bypass surgery in infants with isolated ventricular septal defect
Dong Sub Kim, Sang In Lee, Sang Bum Lee, Myung Chul Hyun, Joon Yong Cho, Young Ok Lee
Clin Exp Pediatr. 2014;57(5):222-225.   Published online May 31, 2014
Purpose

A recent study analyzing several cytokines reported that long cardiopulmonary bypass (CPB) time and long aortic cross clamp (ACC) time were accompanied by enhanced postoperative inflammation, which contrasted with the modest influence of the degree of hypothermia. In this present study, we aimed to examine the effect of CPB temperature on the clinical outcome in infants undergoing repair of isolated...

Susceptibility of rat hippocampal neurons to hypothermia during development
Kyung Ah Seo, Sehhyun Kim, Na Mi Lee, Soo Ahn Chae
Clin Exp Pediatr. 2013;56(10):446-450.   Published online October 31, 2013
Purpose

This study evaluated the extent of damage due to hypothermia in the mature and immature brain.

Methods

Hippocampal tissue cultures at 7 and 14 days in vitro (DIV) were used to represent the immature and mature brain, respectively. The cultures were exposed at 25℃ for 0, 10, 30, and 60 minutes (n=30 in each subgroup). Propidium iodide fluorescent images were captured 24...