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Phan PH, Tran HMT, Hoang CN, Nguyen TV, Quek BH, Lee JH. The epidemiology of critical respiratory diseases in ex-premature infants in Vietnam: A prospective single-center study. Pediatr Pulmonol 2024. [PMID: 39323116 DOI: 10.1002/ppul.27289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2024] [Revised: 08/16/2024] [Accepted: 09/14/2024] [Indexed: 09/27/2024]
Abstract
INTRODUCTION This study aimed to describe the epidemiology and etiologies of critical respiratory diseases of ex-premature infants (EPIs) admitted to the Pediatric Intensive Care unit (PICU). METHODS Infants ≤2 years old with acute respiratory illnesses admitted to PICU of Vietnam National Children's Hospital from November 2019 to April 2021 were enrolled and followed up to hospital discharge. We compared respiratory pathogens, outcomes, and PICU resources utilized between EPIs and term infants. Among EPIs, we described clinical characteristics and evaluated the association between associated factors and mortality. RESULTS Among 1183 patients, aged ≤2 years were admitted for critical respiratory illnesses, 202 (17.1%) were EPIs. Respiratory viruses were detected in 53.5% and 38.2% among EPIs and term infants, respectively. Compared to term infants, a higher proportion of EPIs required mechanical ventilation (MV) (85.6 vs. 66.5%, p < .005) and vasopressor support (37.6 vs. 10.7%%, p < .005). EPIs had a higher median PICU length of stay (11.0 [IQR: 7; 22] vs. 6.0 days [IQR: 3; 11], p = .09), hospital length of stay (21.5 [IQR: 13; 40] vs. 10.0 days [IQR: 5; 18], p < .005) and case fatality rate (31.3% vs. 22.6%) compared to term infants. Among EPIs, PIM-3 score (adjusted odds ratio [aOR]: 1.51; 95% confidence interval [CI]: 1.30-1.75) and PELOD-2 score at admission (aOR: 1.41; 95% CI: 1.08-1.85) were associated with mortality. CONCLUSIONS EPIs with critical respiratory illnesses constituted a significant population in the PICU, required more PICU support, and had worse clinical outcomes compared to term infants.
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Affiliation(s)
- Phuc Huu Phan
- Pediatric Intensive Care Unit, Vietnam National Children's Hospital, Hanoi, Vietnam
| | - Hanh My Thi Tran
- Pediatric Intensive Care Unit, Vietnam National Children's Hospital, Hanoi, Vietnam
| | - Canh Ngoc Hoang
- Pediatric Intensive Care Unit, Vietnam National Children's Hospital, Hanoi, Vietnam
| | - Thang Van Nguyen
- Pediatric Intensive Care Unit, Vietnam National Children's Hospital, Hanoi, Vietnam
| | - Bin Huey Quek
- Department of Neonatology, KK Women's and Children's Hospital, Singapore
| | - Jan Hau Lee
- Children's Intensive Care Unit, KK Women's and Children's Hospital, Singapore
- SingHealth Duke-NUS Global Health Institute, Singapore
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Guo X, Ma D, Li R, Zhang R, Guo Y, Yu Z, Chen C. Association between viral infection and bronchopulmonary dysplasia in preterm infants: a systematic review and meta-analysis. Eur J Pediatr 2024; 183:2965-2981. [PMID: 38634889 PMCID: PMC11192663 DOI: 10.1007/s00431-024-05565-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 04/05/2024] [Accepted: 04/09/2024] [Indexed: 04/19/2024]
Abstract
Bronchopulmonary dysplasia (BPD) is the most common serious complication of very preterm infants (VPI) or very low birth weight (VLBW) infants. Studies implicate viral infections in etiopathogenesis. The aim of this study was to summarize the relationship between viral infections and BPD through a systematic review and meta-analysis. We searched PubMed, Embase, the Web of Science Core Collection, and the Cochrane Database on December 19, 2023. We included observational studies that examined the association between viral infections and BPD in preterm infants. We extracted data on study methods, participant characteristics, exposure assessment, and outcome measures. We assessed study risk of bias using the Newcastle-Ottawa Scale (NOS). We included 17 and 15 studies in the qualitative review and meta-analysis, respectively. The meta-analysis showed a significant association between viral infection and BPD diagnosed at 36 weeks postmenstrual age (odds ratio (OR): 2.42, 95% confidence interval: 1.89-3.09, 13 studies, very low certainty of evidence). In a subgroup analysis of specific viruses, cytomegalovirus (CMV) proved to be significantly associated with BPD diagnosed at 36 weeks postmenstrual age (OR: 2.34, 95% confidence interval: 1.80-3.05, 11 studies). We did not find an association between viral infection and BPD diagnosed on the 28th day of life, probably due to the small sample size of the included prospective studies. Conclusion: Viral infections, especially CMV, are associated with an increased risk of BPD in preterm infants. Methodologically reliable prospective studies with large samples are needed to validate our conclusions, and high-quality randomized controlled studies are needed to explore the effect of prevention or treatment of viral infections on the incidence of BPD. What is Known: • Studies have attempted to identify viral infections and bronchopulmonary dysplasia in preterm infants; however, results have been inconsistent. What is New: • Systematic demonstration that viral infections, particularly cytomegalovirus, are positively associated with bronchopulmonary dysplasia diagnosed in preterm infants at the 36th week of postmenstrual age. • The importance of screening for viral infections in preterm infants, especially cytomegalovirus. More high-quality studies should be produced in the future to investigate the causal relationship between viral infections and bronchopulmonary dysplasia.
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Affiliation(s)
- Xin Guo
- Department of Neonatology, Longgang District Maternity & Child Healthcare Hospital of Shenzhen City (Longgang Maternity and Child Institute of Shantou University Medical College), Shenzhen, 518172, Guangdong, China
| | - Defei Ma
- Department of Neonatology, Longgang District Maternity & Child Healthcare Hospital of Shenzhen City (Longgang Maternity and Child Institute of Shantou University Medical College), Shenzhen, 518172, Guangdong, China
| | - Rui Li
- Department of Neonatology, Longgang District Maternity & Child Healthcare Hospital of Shenzhen City (Longgang Maternity and Child Institute of Shantou University Medical College), Shenzhen, 518172, Guangdong, China
| | - Ruolin Zhang
- Department of Neonatology, Nanshan Maternity & Child Healthcare Hospital, Shenzhen, 518067, Guangdong, China
| | - Yanping Guo
- Department of Pediatrics, Peking University Shenzhen Hospital, Shenzhen, 518036, Guangdong, China
| | - Zhangbin Yu
- Department of Neonatology, Shenzhen People's Hospital, The Second Clinical Medical College of Jinan University, First Affiliated Hospital of Southern University of Science and Technology, Shenzhen, 518000, Guangdong, China.
| | - Cheng Chen
- Department of Neonatology, Longgang District Maternity & Child Healthcare Hospital of Shenzhen City (Longgang Maternity and Child Institute of Shantou University Medical College), Shenzhen, 518172, Guangdong, China.
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Mizogami M, Hasegawa H, Yamada Y, Wasa M, Ikeda K. Examination of changes in the breathing intolerance index to determine the respiratory support needs of very low birth weight infants. Pediatr Pulmonol 2024. [PMID: 38501335 DOI: 10.1002/ppul.26969] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 03/06/2024] [Accepted: 03/07/2024] [Indexed: 03/20/2024]
Abstract
BACKGROUND The breathing intolerance index (BITI) is used to evaluate respiratory muscle tolerance. The higher the ratio of the inspiratory time to the total breathing time and the ratio of the tidal volume to the vital capacity, the more easily the respiratory muscles become fatigued. The BITI is high with chronic respiratory failure, and values of 0.15 or more indicate the need for assisted ventilation. OBJECTIVE This study aimed to examine the changes in the BITI of very low birth weight infants (VLBWIs) and determine whether it is possible to use the BITI as an objective indicator of the timing of noninvasive respiratory support (NRS) withdrawal. METHODS VLBWIs admitted to our neonatal intensive care unit between July 2020 and July 2022 under NRS at 36 weeks' postmenstrual age (PMA). If the BITI was less than 0.15, then we attempted to determine whether NRS could be withdrawn. RESULTS Sixteen infants with a median gestational age and birth weight of 30.9 weeks and 1249 g, respectively, were eligible. The median PMA at the time of the first examination was 36.6 weeks. The BITI of two VLBWIs was less than 0.15. For 11 of the other VLBWIs, the BITI decreased over time to less than 0.15 at 39 weeks' PMA. After confirming that the BITI was less than 0.15, weaning from NRS was attempted. Weaning from NRS was possible except one VLBWI. CONCLUSION The BITI can help evaluate respiratory tolerance and could be an objective indicator of the timing of NRS withdrawal.
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Affiliation(s)
- Masae Mizogami
- Department of Neonatology, Tokyo Women's Medical University Adachi Medical Center, Tokyo, Japan
| | - Hisaya Hasegawa
- Department of Neonatology, Tokyo Women's Medical University Adachi Medical Center, Tokyo, Japan
| | - Yosuke Yamada
- Department of Neonatology, Tokyo Women's Medical University Adachi Medical Center, Tokyo, Japan
| | - Masanori Wasa
- Department of Neonatology, Tokyo Women's Medical University Adachi Medical Center, Tokyo, Japan
| | - Kenta Ikeda
- Department of Neonatology, Tokyo Women's Medical University Adachi Medical Center, Tokyo, Japan
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Wang X, Lu YK, Wu YY, Liu DP, Guo J, Li MC, Wang Y, Li R, Zhang XY, Kang WQ. Comparison of two novel diagnostic criteria for bronchopulmonary dysplasia in predicting adverse outcomes of preterm infants: a retrospective cohort study. BMC Pulm Med 2023; 23:308. [PMID: 37612680 PMCID: PMC10464144 DOI: 10.1186/s12890-023-02590-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2023] [Accepted: 07/31/2023] [Indexed: 08/25/2023] Open
Abstract
BACKGROUND This study aimed to compare the predictive value of two diagnostic criteria for bronchopulmonary dysplasia (BPD) in preterm infants with gestational age (GA) < 32 weeks for death or severe respiratory morbidity at corrected age of 18-24 months. METHODS In this retrospective cohort study, clinical data from July 2019 to September 2021 were classified by 2018 National Institute of Child Health and Human Development (NICHD) and 2019 Jensen definitions of BPD. Based on the follow-up results, the enrolled population was divided into adverse outcome group and normal outcome group. Logistic regression and receiver operating characteristic (ROC) curve analyses were conducted to explore the risk factors of adverse outcomes and evaluate the predictive value of both diagnostic criteria. RESULTS Of 451 infants, 141 (31.3%) had adverse outcomes, which increased with increasing severity of BPD. Logistic regression analysis showed only BPD was an independent risk factor for adverse outcomes in preterm infants. ROC analysis revealed that both diagnostic criteria showed similar predictive values (2018 NICHD definition AUC = 0.771 vs. 2019 Jensen definition AUC = 0.770), with specificities of 93.5% and 96.8%, respectively; however, combining them separately with GA or birth weight did not improve their predictive values. CONCLUSIONS The two novel definitions of BPD demonstrate similar predictive values in predicting death or severe respiratory morbidity at corrected age of 18-24 months, with higher specificity observed in both.
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Affiliation(s)
- Xin Wang
- Neonatal Intensive Care Unit, Zhengzhou Key Laboratory of Newborn Disease Research, Children's Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Yang-Ke Lu
- Neonatal Intensive Care Unit, Zhengzhou Key Laboratory of Newborn Disease Research, Children's Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Yan-Yan Wu
- Neonatal Intensive Care Unit, Zhengzhou Key Laboratory of Newborn Disease Research, Children's Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Da-Peng Liu
- Neonatal Intensive Care Unit, Zhengzhou Key Laboratory of Newborn Disease Research, Children's Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Jing Guo
- Neonatal Intensive Care Unit, Zhengzhou Key Laboratory of Newborn Disease Research, Children's Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Ming-Chao Li
- Neonatal Intensive Care Unit, Zhengzhou Key Laboratory of Newborn Disease Research, Children's Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - YingYuan Wang
- Neonatal Intensive Care Unit, Zhengzhou Key Laboratory of Newborn Disease Research, Children's Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Rui Li
- Neonatal Intensive Care Unit, Zhengzhou Key Laboratory of Newborn Disease Research, Children's Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Xiao-Yuan Zhang
- Neonatal Intensive Care Unit, Zhengzhou Key Laboratory of Newborn Disease Research, Children's Hospital Affiliated to Zhengzhou University, Zhengzhou, China
| | - Wen-Qing Kang
- Neonatal Intensive Care Unit, Zhengzhou Key Laboratory of Newborn Disease Research, Children's Hospital Affiliated to Zhengzhou University, Zhengzhou, China.
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Jo HS, Lim MN, Cho SI. Required biological time for lung maturation and duration of invasive ventilation: a Korean cohort study of very low birth weight infants. Front Pediatr 2023; 11:1184832. [PMID: 37416815 PMCID: PMC10320392 DOI: 10.3389/fped.2023.1184832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Accepted: 06/07/2023] [Indexed: 07/08/2023] Open
Abstract
Background We investigated the duration of invasive ventilation among very low birth weight (VLBW) infants to evaluate the current minimum time required for lung maturation to breathe without ventilator assistance after preterm birth. Methods A total of 14,658 VLBW infants born at ≤32+6 weeks between 2013 and 2020 were enrolled. Clinical data were collected from the Korean Neonatal Network, a national prospective cohort registry of VLBW infants from 70 neonatal intensive care units. Differences in the duration of invasive ventilation according to gestational age and birth weight were investigated. Recent trends and changes in assisted ventilation duration and associated perinatal factors between 2017-20 and 2013-16 were compared. Risk factors related to the duration of assisted ventilation were also identified. Results The overall duration of invasive ventilation was 16.3 days and the estimated minimum time required corresponded to 30+4 weeks of gestation. The median duration of invasive ventilation was 28.0, 13.0, 3.0, and 1.0 days at <26, 26-27, 28-29, and 30-32 weeks of gestation, respectively. In each gestational age group, the estimated minimum weaning points from the assisted ventilator were 29+5, 30+2, 30+2, and 31+5 weeks of gestation. The duration of non-invasive ventilation (17.9 vs. 22.5 days) and the incidence of bronchopulmonary dysplasia (28.1% vs. 31.9%) increased in 2017-20 (n = 7,221) than in 2013-16 (n = 7,437). In contrast, the duration of invasive ventilation and overall survival rate did not change during the periods 2017-20 and 2013-16. Surfactant treatment and air leaks were associated with increased duration of invasive ventilation (inverse hazard ratio 1.50, 95% CI, 1.04-2.15; inverse hazard ratio 1.62, 95% CI, 1.29-2.04). We expressed the incidence proportion of ventilator weaning according to the invasive ventilation duration using Kaplan-Meier survival curves. The slope of the curve slowly decreased as gestational age and birth weight were low and risk factors were present. Conclusions This population-based data on invasive ventilation duration among VLBW infants suggest the present limitation of postnatal lung maturation under specific perinatal conditions after preterm birth. Furthermore, this study provides detailed references for designing and/or assessing earlier ventilator weaning protocols and lung protection strategies by comparing populations or neonatal networks.
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Affiliation(s)
- Heui Seung Jo
- Department of Pediatrics, Kangwon National University Hospital, Chuncheon, Republic of Korea
| | - Myoung Nam Lim
- Biomedical Research Institute, Kangwon National University Hospital, Chuncheon, Republic of Korea
| | - Sung-Il Cho
- Graduate School of Public Health and Institute of Health and Environment, Seoul National University, Seoul, Republic of Korea
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6
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Wang H, Yan D, Wu Z, Geng H, Zhu X, Zhu X. Predictive values of clinical data,molecular biomarkers, and echocardiographic measurements in preterm infants with bronchopulmonary dysplasia. Front Pediatr 2023; 10:1070858. [PMID: 36923947 PMCID: PMC10008901 DOI: 10.3389/fped.2022.1070858] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Accepted: 11/30/2022] [Indexed: 03/01/2023] Open
Abstract
Objective We aimed to use molecular biomarkers and clinical data and echocardiograms that were collected during admission to predict bronchopulmonary dysplasia (BPD) in preterm infants with gestational age ≤32 weeks. Methods Eighty-two patients (40 with BPD, BPD group and 42 healthy as controls, non-BPD group) admitted to the Department of Neonatology of the Children's Hospital of Soochow University between October 1, 2018, and February 29, 2020, were enrolled in this study at the tertiary hospital. Basic clinical data on the perinatal period, echocardiographic measurements, and molecular biomarkers (N-terminal-pro-B-brain natriuretic peptide, NT-proBNP) were collected. We used multiple logistic regression analysis to establish an early predictive model for detecting BPD development in preterm infants of gestational age ≤32 weeks. We also used a receiver operating characteristic curve to assess the sensitivity and specificity of the model. Results No significant differences were found between the BPD and non-BPD groups in terms of sex, birth weight, gestational age, incidence of asphyxia, maternal age, gravidity, parity, mode of delivery, premature rupture of membranes >18 h, use of prenatal hormones, placental abruption, gestational diabetes mellitus, amniotic fluid contamination, prenatal infections, and maternal diseases. The use of caffeine, albumin, gamma globulin; ventilation; days of FiO2 ≥ 40%; oxygen inhalation time; red blood cell suspension infusion volume (ml/kg); and proportion of infants who received total enteral nutrition (120 kcal/kg.d) ≥24 d after birth were higher in the BPD group than in the non-BPD group. The levels of hemoglobin, hematocrit, and albumin in the BPD group were significantly lower than those in the non-BPD group. The total calorie intake was significantly lower in the BPD group on the 3rd, 7th, and 14th day after birth than in the non-BPD group (P < 0.05). The incidence rates of patent ductus arteriosus (PDA), pulmonary hypertension, and tricuspid regurgitation were significantly higher in the BPD group than in the non-BPD group (P < 0.05). The serum level of NT-proBNP 24 h after birth was significantly higher in the BPD group than in the non-BPD group (P < 0.05). Serum NT-proBNP levels were significantly higher in infants with severe BPD than in those with mild or moderate BPD (P < 0.05). Conclusion As there were various risk factors for BPD, a combining clinical data, molecular biomarkers, and echocardiogram measurements can be valuable in predicting the BPD. The tricuspid regurgitation flow rate (m/s), NT-proBNP (pg/ml), ventilator-associated pneumonia, days of FiO2 ≥ 40% (d), red blood cell suspension infusion volume (ml/kg), and proportion of infants who received total enteral nutrition (120 kcal/kg.d) ≥24 d after birth were the most practical factors considered for designing an appropriate model for predicting the risk of BPD.
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Affiliation(s)
- Huawei Wang
- Department of Neonatology, Children's Hospital of Soochow University, Suzhou, China
| | - Dongya Yan
- Department of Neonatology, Children's Hospital of Soochow University, Suzhou, China
- Department of Neonatology, Children's Hospital of Anhui Province, Hefei, China
| | - Zhixin Wu
- Department of Neonatology, Children's Hospital of Soochow University, Suzhou, China
| | - Haifeng Geng
- Department of Neonatology, Children's Hospital of Soochow University, Suzhou, China
| | - Xueping Zhu
- Department of Neonatology, Children's Hospital of Soochow University, Suzhou, China
| | - Xiaoli Zhu
- Department of Intervention, The First Affiliated Hospital of Soochow University, Suzhou, China
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Siffel C, Hirst AK, Sarda SP, Chen H, Ferber J, Kuzniewicz MW, Li DK. The clinical burden of extremely preterm birth in a large medical records database in the United States: complications, medication use, and healthcare resource utilization. J Matern Fetal Neonatal Med 2022; 35:10271-10278. [PMID: 36170979 DOI: 10.1080/14767058.2022.2122035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
INTRODUCTION Approximately 5% of global preterm births are extremely premature (EP), defined as occurring at less than 28 weeks gestational age. Advances in care have led to an increase in the survival of EP infants during the neonatal period. However, EP infants have a higher risk of developing complications such as bronchopulmonary dysplasia (BPD), intraventricular hemorrhage (IVH), and retinopathy of prematurity (ROP). BPD and other respiratory morbidities are particularly prevalent among this population. To understand the healthcare resource utilization (HRU) of EP infants in the United States, the clinical and economic burden of extreme prematurity was examined in this retrospective study of data extracted from electronic medical records in the Kaiser Permanente Northern California (KPNC) health system. METHODS The analysis included data from EP infants live-born between January 1997 and December 2016, and focused on complications and HRU up to 3 years corrected age (CA), covering the period up to December 2018. Stillbirths, infants born at <22 weeks gestational age, and infants with major congenital malformations were excluded. Complications of interest (BPD, IVH, and ROP) and medication use were compared by age group (≤1 year, >1 year and ≤2 years, and >2 years and ≤3 years CA). Analysis of HRU included hospital readmissions, ambulatory visits, and emergency room (ER) visits. RESULTS A total of 2154 EP births (0.32% of total live births and 4.0% of preterm births that met the inclusion/exclusion criteria) were analyzed. The prevalence of EP birth showed a declining trend over time. ROP was the most commonly recorded complication during the birth hospitalization (37.1% any stage; 2.9% Stages 3 and 4). BPD was recorded in 34.3% of EP infants. IVH (any grade) was recorded in 22.7% of EP infants (6.4% Grades III and IV). A majority (78.7%) of EP infants were diagnosed with at least one respiratory condition during the first year CA, the most common being pneumonia (68.9%); the prevalence of respiratory conditions decreased over the second and third years CA. During the first 3 years CA, the most common medications prescribed to children born EP were inhaled bronchodilators (approximately 30% of children); at least 15% of children received systemic corticosteroids and inhaled steroids during this period. During the first 3 years CA, at least one hospital readmission was recorded for 16.4% of children born EP; 57.1% of these readmissions were related to respiratory conditions. At least one ER visit was recorded for 33.8% of children born EP, for which 53.1% were due to a respiratory condition. Ambulatory visits were recorded for 54.2% of EP children, for which 82.9% were due to a respiratory condition. CONCLUSIONS The short- and long-term clinical burden of EP birth was high. The onset of BPD, IVH, and ROP was common during the birth hospitalization for EP infants. Medication use, hospital readmission, and clinic visits (ER and ambulatory) occurred frequently in these children during the first 3 years CA, and were commonly due to respiratory conditions. Strategies prioritizing the reduction of risk and severity of respiratory conditions may alleviate the clinical burden of EP birth over the long term.
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Affiliation(s)
- Csaba Siffel
- Global Evidence and Outcomes, Takeda Development Center Americas, Lexington, MA, USA.,College of Allied Health Sciences, Augusta University, Augusta, GA, USA
| | - Andrew K Hirst
- Division of Research, Kaiser Permanente Northern California, Oakland, CA, USA
| | - Sujata P Sarda
- Global Evidence and Outcomes, Takeda Development Center Americas, Lexington, MA, USA
| | - Hong Chen
- Division of Research, Kaiser Permanente Northern California, Oakland, CA, USA
| | - Jeannette Ferber
- Division of Research, Kaiser Permanente Northern California, Oakland, CA, USA
| | | | - De-Kun Li
- Division of Research, Kaiser Permanente Northern California, Oakland, CA, USA
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Beretta F, Lavizzari A, Pesenti N, Arkhangelskaia T, Ciuffini F, Ophorst M, Gangi S, Colnaghi M, Morniroli D, Mosca F, Giannì ML. Effect of human milk and other neonatal variables on lung function at three months corrected age. Pediatr Pulmonol 2021; 56:3832-3838. [PMID: 34407314 DOI: 10.1002/ppul.25625] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 07/13/2021] [Accepted: 08/04/2021] [Indexed: 12/11/2022]
Abstract
OBJECTIVE To evaluate the impact of human milk and different neonatal variables on tidal breathing flow-volume loop (TBFVL) parameters within three months' corrected age (CA) in infants born ≤32 wks or weighing <1500 g. METHODS We retrospectively studied 121 infants with gestational age (GA) ≤ 32 weeks or birth weight (BW) <1500 gr who had lung function assessment within three months' CA by TBFVL analysis between June 2009 and April 2018. We investigated the impact of GA, gender, being Small for GA (SGA), sepsis, days of mechanical ventilation (MV) and human milk feeding (HMF) on later respiratory function, both in the entire group and according to BW ( ≤1000 g and >1000 g). RESULTS The mean(SD) z-score for tidal volume (Vt) and time to peak expiratory flow to expiratory time (tPTEF/tE) were respectively -4.3 (2.5) and -0.8 (2.0) for the overall population with no significant differences between infants <1000 g or ≥1000 g. The mean(SD) Vt standardized for body weight was 6.2(2.0) ml/kg. Being female was associated with better Vt/Kg, whereas longer MV or being born SGA were associated with worst tPTEF/tE. For infants with BW < 1000 gr, tPTEF/tE was positively associated with HMF. CONCLUSION An early TBFVL assessment within three months' CA already reveals lung function alteration in preterm infants. Being female is associated with better Vt/Kg, while longer duration of MV or being born SGA negatively affect tPTEF/tE. The positive association between HMF and better tPTEF/tE in infants with BW <1000 g has emerged, which deserves further investigation.
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Affiliation(s)
- Francesco Beretta
- Neonatal Intensive Care Unit, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Anna Lavizzari
- Neonatal Intensive Care Unit, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Nicola Pesenti
- Department of Statistics and Quantitative Methods, Division of Biostatistics, Epidemiology and Public Health, University of Milano-Bicocca, Milan, Italy
| | - Taja Arkhangelskaia
- Neonatal Intensive Care Unit, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Francesca Ciuffini
- Neonatal Intensive Care Unit, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Marijke Ophorst
- Neonatal Intensive Care Unit, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Silvana Gangi
- Neonatal Intensive Care Unit, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Mariarosa Colnaghi
- Neonatal Intensive Care Unit, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Daniela Morniroli
- Neonatal Intensive Care Unit, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy
| | - Fabio Mosca
- Neonatal Intensive Care Unit, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy.,Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - Maria L Giannì
- Neonatal Intensive Care Unit, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Milan, Italy.,Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
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9
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Lavizzari A, Zannin E, Ophorst M, Ciuffini F, Gangi S, Farolfi A, Colnaghi M, Dellacà RL, Mosca F. Tidal Breathing Measurements in Former Preterm Infants: A Retrospective Longitudinal Study. J Pediatr 2021; 230:112-118.e4. [PMID: 33253731 DOI: 10.1016/j.jpeds.2020.11.050] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 11/18/2020] [Accepted: 11/23/2020] [Indexed: 12/19/2022]
Abstract
OBJECTIVES To investigate, in infants born preterm with or without bronchopulmonary dysplasia (BPD), the trajectory of tidal breathing flow-volume (TBFV) parameters in the first 2 years of life; the association between TBFV parameters and perinatal risk factors; and the predictive value of TBFV parameters for rehospitalizations due to respiratory infections and wheeze. STUDY DESIGN We retrospectively analyzed TBFV measurements performed at 0-6, 6-12, and 12-24 months of corrected age in 97 infants <32 weeks of gestation and <1500 g. We assessed the association between TBFV parameters and perinatal risk-factors using linear regressions and the predictive capacity for subsequent respiratory morbidity using logistic regressions. We used the area under the curve and likelihood ratio test (LRT) to compare nested models. RESULTS Time to peak tidal expiratory flow/expiratory time ratio (tPTEF/tE) was lower than normal for the first 2 years of corrected age. Longer duration of oxygen supplementation, intubation, and respiratory support were associated with reduced tPTEF/tE at all time points. For each z-score increase in tPTEF/tE, the OR for rehospitalizations decreased by 0.70. tPTEF/tE added significantly to BPD classifications alone in predicting rehospitalizations (area under the receiver operating characteristic curve = 0.81 vs 0.76, P value for LRT = .0012), and wheeze (area under the receiver operating characteristic curve = 0.76 vs 0.71, P value for LRT <.001). CONCLUSIONS Infants born preterm, with and without BPD, display persistent airway obstruction during the first 2 years of life. tPTEF/tE may identify infants at greater risk of severe respiratory morbidity.
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Affiliation(s)
- Anna Lavizzari
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, NICU, Milan, Italy.
| | - Emanuela Zannin
- Politecnico di Milano University Dipartimento di Elettronica, Informazione e Bioingegneria - DEIB Laboratorio di Tecnologie Biomediche - TBMLab, Milan, Italy
| | - Marijke Ophorst
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, NICU, Milan, Italy
| | - Francesca Ciuffini
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, NICU, Milan, Italy
| | - Silvana Gangi
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, NICU, Milan, Italy
| | - Andrea Farolfi
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, NICU, Milan, Italy
| | - Mariarosa Colnaghi
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, NICU, Milan, Italy
| | - Raffaele Lorenzo Dellacà
- Politecnico di Milano University Dipartimento di Elettronica, Informazione e Bioingegneria - DEIB Laboratorio di Tecnologie Biomediche - TBMLab, Milan, Italy
| | - Fabio Mosca
- Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, NICU, Milan, Italy; Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
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