{"title":"Comparative Study on the Clinical Characteristics of Transient Tachypnea of Newborns according to the Need for Invasive Mechanical Ventilation","authors":"Ho Jun Yoon, Seung Hyun Lee","doi":"10.5385/nm.2023.30.3.69","DOIUrl":"https://doi.org/10.5385/nm.2023.30.3.69","url":null,"abstract":"Purpose: Transient tachypnea of the newborn (TTN) is the most prevalent respiratory disease worldwide. Many neonates with TTN generally demonstrate spontaneous improvement. However, only few patients present with severe complications. This study aimed to investigate the differences in clinical features to identify neonates at risk for further complications.Methods: Between January 2015 and December 2020, 267 neonates who developed dyspnea within 6 h of birth were delivered at a gestational age of at least 37 weeks. The experimental group (group E) included 44 neonates who required invasive mechanical ventilation, whereas the control group (group C) included 223 neonates who required only observation or non-invasive respiratory support. We analyzed the differences in clinical and perinatal factors between the two groups.Results: Gestational age and pH on arterial blood gas analysis at admission were significantly lower in group E (p<0.05). Clinical findings, such as moaning, tachypnea (>90 breaths/min), and pneumothorax, were more frequently observed in group E (p<0.05).Conclusion: Moaning, tachypnea (>90 breaths/min), and need for respiratory assistance (fraction of inspired oxygen concentration ≥0.25) are predictive factors for increased risk of progression to a more severe disease course in neonates with TTN. Additional studies are needed to identify definitive factors that can differentiate TTN that improves spontaneously from TTN that requires intensive care.","PeriodicalId":32945,"journal":{"name":"Neonatal Medicine","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48031822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sun Hyang Lee, Min Kyu Seo, G. Park, Sung Shin Kim
{"title":"What Factors Delay Interatrial Communications Closure in the Oval Fossa?","authors":"Sun Hyang Lee, Min Kyu Seo, G. Park, Sung Shin Kim","doi":"10.5385/nm.2023.30.2.21","DOIUrl":"https://doi.org/10.5385/nm.2023.30.2.21","url":null,"abstract":"Purpose: In most neonatal intensive care units, echocardiography is performed at the bedside. The lack of closure of interatrial communications (IACs) in the oval fossa can affect mortality and morbidity. This study aimed to establish the rate of spontaneous closure of IACs diagnosed in the neonatal period and predict the need for subsequent evaluation according to various factors, including defect size and shape. Methods: The study group comprised 1,242 newborns admitted between March 2017 and December 2020. We judged the closure of the IACs and evaluated the risk factors of each. Patients were classified into the absence or presence of IACs. The morphology of the IACs was classified into atrial septal defects, patent foramen ovale, and multiple holes. Results: A total of 317 patients (131 female, 186 male) were enrolled in the study, and the average defect size was 3.0±1.0 mm. An overall spontaneous closure rate of 89.9% was observed during an average follow-up interval of 5.1±1.1 months. When multiple Cox regression analyses were performed to analyze the risk factors for spontaneous closure, initial defect size was a significant factor. The optimal cut-off value for predicting spontaneous closure of the IAC was 3.05 mm, and the area under the receiver operating characteristic curve was 0.625 (95% confidence interval, 0.520 to 0.729). Preterm infants had a larger defect size corrected for birth weight and a higher closure rate than term infants. Conclusion: Other than large defect size, no factors delayed spontaneous closure. When defects in the oval fossa measure ≤3 mm, most patients experience spon-taneous closure by 7 months of age.","PeriodicalId":32945,"journal":{"name":"Neonatal Medicine","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45097210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. Kim, Jihye Hwang, Jiyoon Jeong, Jeong Min Lee, Ha Na Lee, S. Park, B. Lee, Euiseok Jung
{"title":"Association of Moderate Hypothermia at Admission with Short-Term and Long-Term Outcomes in Extremely Low Birth Weight Infants","authors":"S. Kim, Jihye Hwang, Jiyoon Jeong, Jeong Min Lee, Ha Na Lee, S. Park, B. Lee, Euiseok Jung","doi":"10.5385/nm.2023.30.2.28","DOIUrl":"https://doi.org/10.5385/nm.2023.30.2.28","url":null,"abstract":"Purpose: Extremely low birth weight (ELBW) infants exhibit immature thermoregulation and are easily exposed to hypothermia. We investigated the association between hypothermia on admission with short- and long-term outcomes.Methods: Medical records of ELBW infants admitted to the neonatal intensive care unit of a tertiary medical center between June 2012 and February 2017 were retrospectively analyzed. Upon admission, the axillary body temperature was measured. Moderate hypothermia was defined as admission temperature below 36 ℃.Results: A total of 208 infants with gestational age of 26.4±2.3 weeks and birth weight of 746.7±154.9 g were included. Admission temperature ranged from 33.5 to 36.8 ℃ (median 36.1 ℃). Univariate analyses of maternal and infant characteristics were performed for moderately hypothermic and control (normothermic to mildly hypothermic) infants. Lower gestational age, lower birth weight, and vaginal delivery correlated with moderate hypothermia. Logistic regression analyses adjusted for confounders revealed that the incidence of hemodynamically significant patent ductus arteriosus (hsPDA) was associated with moderate hypothermia in ELBW infants. Moreover, abnormal mental developmental index scores on the Bayley Scales of Infant Development II at a corrected age of 18 to 24 months were associated with moderate hypothermia, but not with the psychomotor developmental index, incidence of blindness, deafness, or cerebral palsy.Conclusion: Moderate hypothermia at admission is not only correlated with short-term neonatal morbidities such as hsPDA, but may also be associated with long-term neurodevelopmental impairment in ELBW infants. Future large-scale studies are required to clarify the long-term consequences of hypothermia upon admission.","PeriodicalId":32945,"journal":{"name":"Neonatal Medicine","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45802375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ha Na Lee, Jeong Min Lee, S. H. Kim, S. Park, Jiyoon Jeong, Euiseok Jung, B. Lee
{"title":"Effects of Recombinant Human Erythropoietin Administration in Premature Infants with Severe Intraventricular Hemorrhage: A Single-Center Experience","authors":"Ha Na Lee, Jeong Min Lee, S. H. Kim, S. Park, Jiyoon Jeong, Euiseok Jung, B. Lee","doi":"10.5385/nm.2023.30.2.34","DOIUrl":"https://doi.org/10.5385/nm.2023.30.2.34","url":null,"abstract":"Purpose: We investigated the effects of early postnatal administration of erythropoietin (EPO) on neurodevelopmental outcomes and morbidities in preterm infants with severe grades of intraventricular hemorrhage (IVH).Methods: We retrospectively reviewed the medical records of preterm infants of gestational age 23+0 weeks to 31+6 weeks, who were diagnosed with severe grades of IVH and received EPO over at least 2 weeks. We compared clinical characteristics, major complications, and neurodevelopmental impairment between the two groups. The primary outcome was severe neurodevelopmental impairment at 18 to 26 months of corrected age. Severe neurodevelopmental impairment was defined as a mental developmental index or psychomotor developmental index of <70 on the Bayley Scales of Infant Development II or diagnosis of cerebral palsy.Results: The study included 33 preterm infants (mean gestational age 25.2±1.6 weeks and mean birth weight 775.1±224.5 g). EPO was administered at a dose of 400 or 1,000 IU/kg thrice weekly and was maintained over a mean period of 58.6± 25.9 days beginning from 10.7±6.9 days after birth. We observed no difference in perinatal characteristics between the EPO (n=14) and the control group (n=19). Similarly, severe neurodevelopmental impairment rates did not differ between the EPO (85.7%) and control groups (78.9%). The incidence of neonatal morbidities including bronchopulmonary dysplasia, necrotizing enterocolitis, and retinopathy of prematurity was also similar between the EPO and control groups.Conclusion: Early administration of EPO did not reduce the risk of severe neurodevelopmental impairment in preterm infants with severe IVH.","PeriodicalId":32945,"journal":{"name":"Neonatal Medicine","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42082437","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Young Mi Park, Yoon-Myung Kim, S. Oh, Hyun-Seung Jin
{"title":"A Neonate Diagnosed with Megalencephaly-Capillary Malformation-Polymicrogyria Syndrome with PIK3CA Mutation","authors":"Young Mi Park, Yoon-Myung Kim, S. Oh, Hyun-Seung Jin","doi":"10.5385/nm.2023.30.2.55","DOIUrl":"https://doi.org/10.5385/nm.2023.30.2.55","url":null,"abstract":"Megalencephaly-capillary malformation-polymicrogyria syndrome (MCAP) is a rare genetic disorder characterized by megalencephaly, polymicrogyria, body overgrowth, and cutaneous capillary malformations. It has been reported recently that MCAP is related to a somatic mosaic mutation in the phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit alpha (PIK3CA) gene. We report a case of hemimegalencephaly with polymicrogyria and cutaneous capillary malformations diagnosed by genetic evaluation of MCAP in the neonatal period. The PIK3CA mutation [c.1635G>T (p. Glu545Asp)] was determined by Sanger sequencing. The patient was treated with a ventriculoperitoneal shunt for progressive hydrocephalus. Because of the dynamic, progressive clinical manifestations and tumor-prone traits of MCAP, early diagnosis is important. Moreover, since the phosphoinositide 3-kinase (PI3K)-specific inhibitor, a targeted therapy for the PI3K/AKT/mTOR signaling pathway is emerging as a new therapy, early genetic diagnosis is becoming increasingly important.","PeriodicalId":32945,"journal":{"name":"Neonatal Medicine","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42731987","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Seul Gi Park, Hyojun Yang, S. Lim, S. Kim, S. Shin, E. Kim, Han-Suk Kim
{"title":"Neurodevelopmental Outcomes and Brain Volumetric Analysis of Low-Grade Intraventricular Hemorrhage","authors":"Seul Gi Park, Hyojun Yang, S. Lim, S. Kim, S. Shin, E. Kim, Han-Suk Kim","doi":"10.5385/nm.2023.30.2.42","DOIUrl":"https://doi.org/10.5385/nm.2023.30.2.42","url":null,"abstract":"Purpose: Extremely preterm infants are prone to brain injury and underdevelopment. Intraventricular hemorrhage (IVH) is the most common cause of brain injury and a significant risk factor for neurodevelopmental delay in preterm infants. Severe IVH is known to have a poor outcome; however, the outcomes of low-grade IVH remain controversial. This study aimed to evaluate neurodevelopmental outcomes and brain segmental volumes of preterm infants with low-grade IVH.Methods: This retrospective cohort study included 109 extremely preterm infants who underwent term equivalent age-magnetic resonance imaging and neurodevelopmental evaluation at a corrected age of 18 to 24 months. We compared infants with and without low-grade IVH.Results: Among the 109 extremely preterm infants, 25 had low-grade IVH and 84 had no IVH. There were no significant differences in the neurodevelopmental outcomes between the low-grade and no IVH groups. In multivariate analysis, low-grade IVH was associated with a smaller medullary volume (adjusted odds ratio, 0.575; 95% confidence interval, 0.346 to 0.957; P=0.034).Conclusion: We found no significant differences in the neurodevelopmental outcomes of extremely preterm infants at a corrected age of 18 to 24 months between those with low-grade IVH and those without IVH. Low-grade IVH was associated with a smaller medullary volume.","PeriodicalId":32945,"journal":{"name":"Neonatal Medicine","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43822962","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The Impact of Slow Infusion Intermittent Feeding on Gavage Feeding-Associated Cardiorespiratory Deterioration in Neonatal Intensive Care Unit Infants","authors":"Mi Jin Kim, H. S. Kim, Y. Jung, Changwon Choi","doi":"10.5385/nm.2023.30.2.49","DOIUrl":"https://doi.org/10.5385/nm.2023.30.2.49","url":null,"abstract":"Purpose: Infants in the neonatal intensive care unit (NICU) often show cardiorespiratory deterioration during gavage feeding. We aimed to determine whether slow infusion intermittent feeding (SIIF) can reduce respiratory deterioration during gavage feeding in preterm infants in the NICU.Methods: Data on preterm infants whose gavage feeding method was changed to SIIF (1-hour infusion with an infusion pump and 2-hour rest within a 3-hour interval) from bolus gravity feeding (2- or 3-hour interval) due to feeding-associated cardiorespiratory deterioration were retrospectively reviewed. A significant cardiorespiratory event was defined as a saturation level below 80% or heart rate below 80 bpm. We compared the frequency of cardiorespiratory events and the level of respiratory support 24 hours before and after the application of SIIF.Results: A total of 34 infants were enrolled and analyzed. The total frequency of desaturation or bradycardia significantly decreased after SIIF application (8.94 vs. 5.03, P=0.001). The frequency of feedingrelated bradycardia and desaturation also significantly decreased (4.15 vs. 1.68, P=0.008). Out of 34 patients, 11 (32.4%) had a decreased level of ventilator support within 1 day after SIIF. The respiratory severity scores of the 10 patients who received invasive ventilator support decreased significantly after SIIF (5.24 vs. 4.59, P=0.032).Conclusion: SIIF significantly decreased gavage feedingassociated cardiorespiratory events and reduced respiratory support in approximately onethird of subjects. Therefore, SIIF may be a therapeutic option for gavage feedassociated respiratory deterioration in preterm infants in the NICU.","PeriodicalId":32945,"journal":{"name":"Neonatal Medicine","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41787345","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"On the 10th Anniversary of the Korean Neonatal Network","authors":"S. Ahn, H. Song, Y. Chang","doi":"10.5385/nm.2023.30.1.1","DOIUrl":"https://doi.org/10.5385/nm.2023.30.1.1","url":null,"abstract":"The Korean Neonatal Network (KNN), which is celebrating its 10th anniversary, currently has more than 100 staff and researchers from >70 neonatal intensive care units nationwide in Korea. More than 85% to 90% of the population of very low birth weight infants in Korea are registered yearly, and more than half are followed up for up to 3 years at the KNN. A total of >19,000 cases have been accumulated through a strict data quality management process of the KNN. Based on this, >100 research projects have been proposed, >70 peer-reviewed papers have been published in leading international journals, and the cornerstone of the quality improvement project has been launched. In addition, we recently expanded the number of subjects for registration to very premature infants <32 weeks of age and continue to provide essential evidence data for establishing national health policies, such as linking with government policy projects of the Ministry of Health and Welfare for preterm infants. In such manner, the KNN is confident to be successfully and actively moving toward reaching the ultimate goal of standardizing neonatal intensive care and management of preterm infants in Korea by providing essential data for national health policy establishment along with quality improvement through evidence-based interactive data.","PeriodicalId":32945,"journal":{"name":"Neonatal Medicine","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41372043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Neonatal Research Network of Japan and Neonatal Database","authors":"S. Kusuda","doi":"10.5385/nm.2023.30.1.10","DOIUrl":"https://doi.org/10.5385/nm.2023.30.1.10","url":null,"abstract":"In 2004, the Neonatal Research Network of Japan initiated a database registration system for high-risk infants in Japan. Currently, 65% of all very low the birth weight infants or infants born at <32 weeks of gestation are registered in the database. Approximately 4,000 new cases are registered annually. A unique feature of the database is that it includes outcome data at 1.5, 3, and 6 years after discharge from neonatal intensive care units. All registered data are fed back annually to the participating hospitals and used to benchmark neonatal care. Results from this database have also been published in many international journals. With the development of this database, neonatal medicine in Japan has progressed.","PeriodicalId":32945,"journal":{"name":"Neonatal Medicine","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44530340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Corrigendum: A Case of Epidermolysis Bullosa Simplex (Dowling-Meara 1 Type) in Newborn","authors":"Gahyun Hong, Min Seon Choi","doi":"10.5385/nm.2023.30.1.20","DOIUrl":"https://doi.org/10.5385/nm.2023.30.1.20","url":null,"abstract":"This corrects the article \"A Case of Epidermolysis Bullosa Simplex (Dowling-Meara 1 Type) in Newborn\" on page 130.","PeriodicalId":32945,"journal":{"name":"Neonatal Medicine","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135733407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}