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Pan JJ, Zou YS, Tong ML, Wang J, Zhou XY, Cheng R, Yang Y. Dose pulmonary hemorrhage increase the risk of bronchopulmonary dysplasia in very low birth weight infants? J Matern Fetal Neonatal Med 2023; 36:2206941. [PMID: 37121909 DOI: 10.1080/14767058.2023.2206941] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
OBJECTIVE To evaluate the association between pulmonary hemorrhage and bronchopulmonary dysplasia (BPD) in very low birth weight infants (VLBWIs). METHODS The study participants were all VLBW newborns admitted from January 1, 2019 to December 31, 2021. The BPD subjects finally included were VLBWIs who survived until the diagnosis was established. This study was divided into pulmonary hemorrhage group (PH group, n = 35) and non-pulmonary hemorrhage group (Non-PH group, n = 190). RESULTS By univariate analysis it was found that premature rupture of membranes, tracheal intubation in the delivery room, duration of mechanical ventilation, course of invasive ventilation (≥3 courses), pulmonary surfactant (>1 dose), medically and surgically treated patent ductus arteriosus, grade III-IV RDS, early onset sepsis, BPD and moderate to severe BPD showed significant differences between groups (p < .05). By Multivariate analysis, pulmonary hemorrhage did not increase the risks of BPD and moderate to severe BPD (adjusted OR for BPD = 1.710, 95% CI 0.581-5.039; adjusted OR for moderate to severe BPD = 2.401, 95% CI 0.736-7.834). CONCLUSION It suggests that pulmonary hemorrhage is not associated with the development of BPD and moderate to severe BPD in VLBWIs.
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Affiliation(s)
- Jing-Jing Pan
- Department of Neonates, Jiangsu Provincial Maternal and Child Health Hospital, Nanjing, Jiangsu, P.R. China
| | - Yun-Su Zou
- Department of Neonates, Children's Hospital of Nanjing Medical University, Nanjing, Jiangsu, P.R. China
| | - Mei-Ling Tong
- Department of Child Healthcare, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu, P.R. China
| | - Jing Wang
- Department of Child Healthcare, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu, P.R. China
| | - Xiao-Yu Zhou
- Department of Neonates, Children's Hospital of Nanjing Medical University, Nanjing, Jiangsu, P.R. China
| | - Rui Cheng
- Department of Neonates, Children's Hospital of Nanjing Medical University, Nanjing, Jiangsu, P.R. China
| | - Yang Yang
- Department of Neonates, Children's Hospital of Nanjing Medical University, Nanjing, Jiangsu, P.R. China
- Department of Child Healthcare, Women's Hospital of Nanjing Medical University, Nanjing Maternity and Child Health Care Hospital, Nanjing, Jiangsu, P.R. China
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Gezmu AM, Tefera E, Mochankana K, Imran F, Joel D, Pelaelo I, Nakstad B. Pulmonary hemorrhage and associated risk factors among newborns admitted to a tertiary level neonatal unit in Botswana. Front Pediatr 2023; 11:1171223. [PMID: 37388284 PMCID: PMC10306393 DOI: 10.3389/fped.2023.1171223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 05/30/2023] [Indexed: 07/01/2023] Open
Abstract
Introduction Pulmonary hemorrhage (PH) is a life-threatening complication seen in very sick newborns with high morbidity and mortality. There is little data on the incidence, risk factors, and ultimate survival of newborns with pulmonary hemorrhage in sub-Saharan countries, where the healthcare provision and facility differ in many ways compared to high-income countries. Hence, this study aimed to determine the incidence, identify the risk factors, and describe the outcome of pulmonary hemorrhage in newborns in a low middle income country setting. Methods and materials A cohort study with prospective data collection was conducted in a public, tertiary-level hospital in Botswana, the Princess Marina Hospital (PMH). All newborns admitted to the neonatal unit from 1 January 2020 to 31 December 2021 were included in the study. Data were collected using a checklist developed on the RedCap database (https//:ehealth.ub.ac.bw/redcap). The incidence rate of pulmonary hemorrhage was calculated as the number of newborns who had pulmonary hemorrhage per 1,000 newborns in the 2-year period. Group comparisons were made using X2 and Student's t-tests. Multivariate logistic regression was used to identify risk factors independently associated with pulmonary hemorrhage. Result There were 1,350 newborns enrolled during the study period, of which 729 were male newborns (54%). The mean (SD) birth weight was 2,154(±997.5) g, and the gestational age was 34.3 (±4.7) weeks. In addition, 80% of the newborns were delivered in the same facility. The incidence of pulmonary hemorrhage was 54/1,350 {4% [95% CI (3%-5.2%)]} among the newborns admitted to the unit. The mortality rate in those diagnosed with pulmonary hemorrhage was 29/54 (53.7%). Multivariate logistic regression identified birth weight, anemia, sepsis, shock, disseminated intravascular coagulopathy (DIC), apnea of prematurity, neonatal encephalopathy, intraventricular hemorrhage, mechanical ventilation, and blood transfusion as risk factors independently associated with pulmonary hemorrhage. Conclusion This cohort study identified a high incidence and mortality rate of pulmonary hemorrhage in newborns in PMH. Multiple risk factors, such as low birth weight, anemia, blood transfusion, apnea of prematurity, neonatal encephalopathy, intraventricular hemorrhage, sepsis, shock, DIC, and mechanical ventilation, were identified as independently associated risk factors for PH.
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Affiliation(s)
| | - Endale Tefera
- Department of Paediatrics and Adolescent Health, University of Botswana, Gaborone, Botswana
| | - Kagiso Mochankana
- Department of Paediatrics and Adolescent Health, University of Botswana, Gaborone, Botswana
| | - Fizzah Imran
- Department of Paediatrics and Adolescent Health, University of Botswana, Gaborone, Botswana
| | - Dipesalema Joel
- Department of Paediatrics and Adolescent Health, University of Botswana, Gaborone, Botswana
| | - Irene Pelaelo
- Department of Paediatrics, Princess Marina Hospital Botswana MOH, Gaborone, Botswana
| | - Britt Nakstad
- Department of Paediatrics and Adolescent Health, University of Botswana, Gaborone, Botswana
- Division of Paediatric and Adolescent Medicine, Inst Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
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Giesinger RE, Hobson AA, Bischoff AR, Klein JM, McNamara PJ. Impact of early screening echocardiography and targeted PDA treatment on neonatal outcomes in "22-23" week and "24-26" infants. Semin Perinatol 2023; 47:151721. [PMID: 36882362 DOI: 10.1016/j.semperi.2023.151721] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
Abstract
The hemodynamically significant patent ductus arteriosus (hsPDA) is a controversial topic in neonatology, particularly among neonates at the earliest gestational ages of 22+0-23+6 weeks. There is little, to no data on the natural history or impact of the PDA in extremely preterm babies. In addition, these high-risk patients have typically been excluded from randomized clinical trials of PDA treatment. In this work, we present the impact of early hemodynamic screening (HS) of a cohort of patients born 22+0-23+6 weeks gestation who either were diagnosed with hsPDA or died in the first postnatal week as compared to a historical control (HC) cohort. We also report a comparator population of 24+0-26+6 weeks gestation. All patients in the HS epoch were evaluated between 12-18h postnatal age and treated based on disease physiology whereas the HC patients underwent echocardiography at the discretion of the clinical team. We demonstrate a two-fold reduction in the composite primary outcome of death prior to 36 weeks or severe BPD and report a lower incidence of severe intraventricular hemorrhage (n=5, 7% vs n=27, 27%), necrotizing enterocolitis (n=1, 1% vs n=11, 11%) and first-week vasopressor use (n=7, 11% vs n=40, 39%) in the HS cohort. HS was also associated with an increase in survival free of severe morbidity from the already high rate of 50% to 73% among neonates <24 weeks gestation. We present a biophysiological rationale behind the potential modulator role of hsPDA on these outcomes and review the physiology relevant to neonates born at these extremely preterm gestations. These data highlight the need for further interrogation of the biological impact of hsPDA and impact of early echocardiography directed therapy in infants born less than 24 weeks gestation.
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Affiliation(s)
- R E Giesinger
- University of Iowa, Department of Pediatrics, Iowa City, IA, USA
| | - A A Hobson
- University of Iowa, Department of Pediatrics, Iowa City, IA, USA
| | - A R Bischoff
- University of Iowa, Department of Pediatrics, Iowa City, IA, USA
| | - J M Klein
- University of Iowa, Department of Pediatrics, Iowa City, IA, USA
| | - P J McNamara
- University of Iowa, Department of Pediatrics, Iowa City, IA, USA; University of Iowa, Department of Internal Medicine, Iowa City, IA, USA.
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曹 兆, 潘 晶, 陈 筱, 吴 越, 卢 刻, 杨 洋. [Pulmonary hemorrhage in very low birth weight infants: risk factors and clinical outcome]. Zhongguo Dang Dai Er Ke Za Zhi 2022; 24:1117-1123. [PMID: 36305112 PMCID: PMC9627989 DOI: 10.7499/j.issn.1008-8830.2204083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 08/05/2022] [Indexed: 06/16/2023]
Abstract
OBJECTIVES To investigate the risk factors for pulmonary hemorrhage and its clinical outcome in very low birth weight infants (VLBWIs). METHODS The medical data were collected from all live VLBWIs (gestational age <35 weeks) who were admitted to Jiangsu Women and Children Health Hospital and Children's Hospital of Nanjing Medical University between January 1, 2020 and December 31, 2021. Based on inclusion and exclusion criteria, 574 VLBWIs were included in the study, with 44 VLBWIs in the pulmonary hemorrhage group and 530 VLBWIs in the non-pulmonary hemorrhage group. The clinical data were compared between the two groups. A multivariate logistic regression analysis was used to identify the risk factors for pulmonary hemorrhage. RESULTS There were significant differences between the two groups in maternal age, rate of positive-pressure ventilation for resuscitation, rate of tracheal intubation for resuscitation, and minimum body temperature within 1 hour after birth (P<0.05). The pulmonary hemorrhage group had a higher proportion of VLBWIs with grade Ⅲ-Ⅳ respiratory distress syndrome or early-onset sepsis than the non-pulmonary hemorrhage group (P<0.05). The pulmonary hemorrhage group also had a higher proportion of VLBWIs with a capillary refilling time of >3 seconds within 1 hour after birth and with the maximum positive end-expiratory pressure (PEEP) of <5 cmH2O within 24 hours after birth (P<0.05). The multivariate regression analysis showed that maternal age of 30-<35 years (OR=0.115, P<0.05) was a protective factor against pulmonary hemorrhage, while a lower temperature (<34°C) within 1 hour after birth, the maximum PEEP of <5 cm H2O within 24 hours after birth, and early-onset sepsis were risk factors for pulmonary hemorrhage (OR=11.609, 11.118, and 20.661, respectively; P<0.05). For all VLBWIs, the pulmonary hemorrhage group had a longer duration of invasive ventilation and a higher mortality rate than the non-pulmonary hemorrhage group (P<0.05); for the survival VLBWIs, the pulmonary hemorrhage group had a higher incidence rate of bronchopulmonary dysplasia than the non-pulmonary hemorrhage group (P<0.05). CONCLUSIONS Maintaining the stability of temperature, giving appropriate PEEP, and identifying sepsis as early as possible can reduce the incidence rate of pulmonary hemorrhage, thereby helping to reduce the incidence of bronchopulmonary dysplasia and mortality in VLBWIs.
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Kappico JM, Cayabyab R, Ebrahimi M, Uzunyan MY, Barton L, Siassi B, Ramanathan R. Pulmonary hemorrhage in extremely low birth weight infants: Significance of the size of left to right shunting through a valve incompetent patent foramen ovale. J Perinatol 2022; 42:1233-7. [PMID: 35851183 DOI: 10.1038/s41372-022-01464-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Revised: 06/20/2022] [Accepted: 07/06/2022] [Indexed: 12/14/2022]
Abstract
OBJECTIVE Pulmonary hemorrhage is a rare but severe complication of extremely low birth weight (ELBW) infants. The association of hemodynamically significant patent ductus arteriosus (hsPDA) and the diameter of the foramen ovale (FO) with pulmonary hemorrhage has not been reported. STUDY DESIGN Case control study of ELBW infants with and without pulmonary hemorrhage. Each ELBW infant with an echocardiogram within 48 h of pulmonary hemorrhage was analyzed. RESULT 16 infants with pulmonary hemorrhage were matched with 32 controls by birth weight and gestational age. Echocardiogram showed hsPDA in all infants and those with pulmonary hemorrhage had significantly smaller patent FO [PFO] (1 vs 2.4 mm, p < 0.01) (OR 0.007; 95% CI 0.00007, 0.67 p = 0.03). Incidence of pulmonary hemorrhage was 8.9%. CONCLUSION ELBW infants with hsPDA who experienced pulmonary hemorrhage had a significantly restricted or closed FO. Evaluation of FO should be considered with serial echocardiograms when evaluating for hsPDA.
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Barnes ME, Feeney E, Duncan A, Jassim S, MacNamara H, O’Hara J, Refila B, Allen J, McCollum D, Meehan J, Mullaly R, O’Cathain N, Roche E, Molloy EJ. Pulmonary haemorrhage in neonates: Systematic review of management. Acta Paediatr 2022; 111:236-244. [PMID: 34582587 DOI: 10.1111/apa.16127] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 09/27/2021] [Indexed: 12/01/2022]
Abstract
AIM Pulmonary haemorrhage (PH) is an acute catastrophic event with low incidence yet high mortality among neonates. We aimed to systematically review the management of PH. METHODS A search was carried out of the PubMed, EMBASE and Cochrane databases according to the PRISMA guidelines. Data were extracted on study design and size, patient demographics, primary and adjunctive treatment methods, and treatment outcomes. RESULTS Sixteen studies with 385 newborn infants were included and were significantly heterogeneous regarding treatment methods. Primary treatments included surfactant, high-frequency oscillatory ventilation (HFOV), epinephrine, coagulopathy management, intermittent positive pressure ventilation, cocaine and tolazoline. Adjunctive treatment methods included blood products, HFOV, increased positive end-expiratory pressure, vitamin K, surfactant, adrenaline, vasopressors and inotropes. All five studies using surfactant as primary treatment were effective in improving oxygenation index measures and preventing recurrence of PH, and three studies found no association between surfactant and death or long-term disability. Ventilatory support, epinephrine, management of coagulopathy and tolazoline were all found to be effective primary treatments for PH. CONCLUSION There are several effective methods of managing PH in neonates. Further understanding of the aetiology of PH and ongoing research will allow future prevention and improvements in management of PH.
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Affiliation(s)
- Melissa E. Barnes
- Discipline of Paediatrics Trinity Collegethe University of Dublin Dublin Ireland
| | - Emily Feeney
- Discipline of Paediatrics Trinity Collegethe University of Dublin Dublin Ireland
| | - Andrew Duncan
- Discipline of Paediatrics Trinity Collegethe University of Dublin Dublin Ireland
| | - Samher Jassim
- Discipline of Paediatrics Trinity Collegethe University of Dublin Dublin Ireland
| | - Honora MacNamara
- Discipline of Paediatrics Trinity Collegethe University of Dublin Dublin Ireland
| | - Joseph O’Hara
- Discipline of Paediatrics Trinity Collegethe University of Dublin Dublin Ireland
| | - Beshoy Refila
- Discipline of Paediatrics Trinity Collegethe University of Dublin Dublin Ireland
| | - John Allen
- Discipline of Paediatrics Trinity Collegethe University of Dublin Dublin Ireland
- Trinity Translational Medicine Institute (TTMI)Trinity College Dublin & Trinity Research in Childhood Centre (TRiCC) Dublin Ireland
- Children’s Hospital Ireland (CHI) at Tallaght Dublin Ireland
| | - Danielle McCollum
- Discipline of Paediatrics Trinity Collegethe University of Dublin Dublin Ireland
- Trinity Translational Medicine Institute (TTMI)Trinity College Dublin & Trinity Research in Childhood Centre (TRiCC) Dublin Ireland
- Children’s Hospital Ireland (CHI) at Tallaght Dublin Ireland
| | - Judith Meehan
- Discipline of Paediatrics Trinity Collegethe University of Dublin Dublin Ireland
- Trinity Translational Medicine Institute (TTMI)Trinity College Dublin & Trinity Research in Childhood Centre (TRiCC) Dublin Ireland
- Children’s Hospital Ireland (CHI) at Tallaght Dublin Ireland
| | - Rachel Mullaly
- Coombe Women and Infants University Hospital Dublin Ireland
| | - Niamh O’Cathain
- Discipline of Paediatrics Trinity Collegethe University of Dublin Dublin Ireland
- Trinity Translational Medicine Institute (TTMI)Trinity College Dublin & Trinity Research in Childhood Centre (TRiCC) Dublin Ireland
- Coombe Women and Infants University Hospital Dublin Ireland
| | - Edna Roche
- Discipline of Paediatrics Trinity Collegethe University of Dublin Dublin Ireland
- Trinity Translational Medicine Institute (TTMI)Trinity College Dublin & Trinity Research in Childhood Centre (TRiCC) Dublin Ireland
- Children’s Hospital Ireland (CHI) at Tallaght Dublin Ireland
| | - Eleanor J. Molloy
- Discipline of Paediatrics Trinity Collegethe University of Dublin Dublin Ireland
- Trinity Translational Medicine Institute (TTMI)Trinity College Dublin & Trinity Research in Childhood Centre (TRiCC) Dublin Ireland
- Children’s Hospital Ireland (CHI) at Tallaght Dublin Ireland
- Coombe Women and Infants University Hospital Dublin Ireland
- Trinity Biomedical Sciences Institute (TTMI)TCD Dublin Ireland
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Lin Y, Zhao HF, Xue MH, Xie BJ, Zeng LC, Jiang X. Ultra-slim flexible bronchoscopy-guided topical hemostatic drugs administration for the management of life-threatening refractory pulmonary hemorrhage in a preterm infant: Case report. Front Pediatr 2022; 10:981006. [PMID: 36330371 PMCID: PMC9623275 DOI: 10.3389/fped.2022.981006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Accepted: 09/26/2022] [Indexed: 11/22/2022] Open
Abstract
Pulmonary hemorrhage (PH) is a rare acute catastrophic event with high mortality among neonates, especially preterm infants. Primary treatments included pulmonary surfactant, high-frequency oscillatory ventilation, epinephrine, coagulopathy management, and intermittent positive pressure ventilation. However, there are still challenges in diagnosing and treating refractory or focal pulmonary hemorrhages. Ultra-slim bronchoscopy has been widely used in the field of critically ill children and is increasingly being done in neonates with critical respiratory disease in recent years. In this study, we report a case with refractory pulmonary hemorrhage in premature infants, which was finally diagnosed as localized hemorrhage in the upper left lobe and cured by ultra-slim bronchoscopy-guided topical hemostatic drug administration. Bronchoscopy is an optional, safe, and practicable technique for early diagnosis and direct injection therapy of neonatal PH in managing life-threatening PH.
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Affiliation(s)
- Yan Lin
- Department of Pediatrics, Tangdu Hospital, Air Force Medical University, Xi'an, China
| | - Hong-Fang Zhao
- Department of Pediatrics, Tangdu Hospital, Air Force Medical University, Xi'an, China
| | - Meng-Hua Xue
- Department of Thoracic Surgery, Tangdu Hospital, Air Force Medical University, Xi'an, China
| | - Bing-Jie Xie
- Department of Pediatrics, Tangdu Hospital, Air Force Medical University, Xi'an, China
| | - Ling-Chao Zeng
- Department of Pediatrics, Tangdu Hospital, Air Force Medical University, Xi'an, China
| | - Xun Jiang
- Department of Pediatrics, Tangdu Hospital, Air Force Medical University, Xi'an, China
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Wang L, Zhao LL, Xu JJ, Yu YH, Li ZL, Zhang FJ, Wen HM, Wu HH, Deng LP, Yang HY, Li L, Ding LL, Wang XK, Zhang CY, Wang H. Association between pulmonary hemorrhage and CPAP failure in very preterm infants. Front Pediatr 2022; 10:938431. [PMID: 36160772 PMCID: PMC9500376 DOI: 10.3389/fped.2022.938431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Accepted: 07/21/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Pulmonary hemorrhage (PH) in neonates is a life-threatening respiratory complication. We aimed to analyze the perinatal risk factors and morbidity with PH among very preterm infants in a large multicenter study. METHODS This was a multicenter case-control study based on a prospective cohort. Participants included 3,680 in-born infants with a gestational age at 24-32 weeks (birth weight <1,500 g) who were admitted between January 1, 2019, and October 31, 2021. All infants were divided into two groups, namely, the PH and no-PH groups, at a ratio of 1:2 according to the following factors: gestational age (GA), birth weight (BW), and the Score for Neonatal Acute Physiology with Perinatal extension II (SNAPPE II). Perinatal factors and outcomes were compared between the two groups by logistic regression analyses. RESULTS A total of 3,680 infants were included in the study, and the number of identified cases of PH was 262 (7.1%). The incidence was 16.9% (136/806) for neonates with extremely low BW (BW < 1,000 g) infants. The multivariate analysis showed that CPAP failure (OR 2.83, 95% CI 1.57, 5.08) was significantly associated with PH. PH was associated with a high likelihood of death (OR 3.81, 95% CI 2.67, 5.43) and bronchopulmonary dysplasia (BPD) (≥grade II) (OR 1.58, 95% CI 1.00, 2.48). CONCLUSIONS In this multicenter case-control study based on a prospective cohort, PH to be common among VLBW infants. PH is associated with significant morbidity and mortality, and perinatal management, especially CPAP failure. Respiratory management strategies to decrease the risk of PH should be optimized.
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Affiliation(s)
- Li Wang
- The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China.,Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | - Li-Li Zhao
- Liaocheng People's Hospital, Liaocheng, China
| | - Jia-Ju Xu
- Yantai Yuhuangding Hospital, Yantai, China
| | - Yong-Hui Yu
- Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | | | - Feng-Juan Zhang
- The First Affiliated Hospital of Shandong First Medical University, Jinan, China
| | - Hui-Min Wen
- Hebei PetroChina Central Hospital, Langfang, China
| | - Hai-Huan Wu
- Baogang Third Hospital of Hongci Group, Baotou, China
| | | | - Hui-Yu Yang
- Women and Children's Healthcare Hospital of Linyi, Linyi, China
| | - Li Li
- Linyi People's Hospital, Linyi, China
| | - Lan-Lan Ding
- Jinan Maternity and Child Health Care Hospital, Jinan, China
| | - Xiao-Kang Wang
- Central Hospital of Shandong Provincial Hospital Affiliated to Shandong First Medical University, Jinan, China
| | | | - Hui Wang
- Hebei PetroChina Central Hospital, Langfang, China
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Pace LM, Lee AY, Nath S, Alviedo NB. Pulmonary Hemorrhage: An Unusual Life-Threatening Presentation of Factor IX Deficiency in a Monochorionic-Diamniotic Twin Neonate. Cureus 2021; 13:e20352. [PMID: 35036192 PMCID: PMC8752414 DOI: 10.7759/cureus.20352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 12/11/2021] [Indexed: 11/05/2022] Open
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Abiramalatha T, Bandyopadhyay T, Ramaswamy VV, Shaik NB, Thanigainathan S, Pullattayil AK, Amboiram P. Risk Factors for Periventricular Leukomalacia in Preterm Infants: A Systematic Review, Meta-analysis, and GRADE-Based Assessment of Certainty of Evidence. Pediatr Neurol 2021; 124:51-71. [PMID: 34537463 DOI: 10.1016/j.pediatrneurol.2021.08.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 07/20/2021] [Accepted: 08/12/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND We analyzed the certainty of evidence (CoE) for risk factors of periventricular leukomalacia (PVL) in preterm neonates, a common morbidity of prematurity. METHODS Medline, CENTRAL, Embase, and CINAHL were searched. Cohort and case-control studies and randomised randomized controlled trials were included. Data extraction was performed in duplicate. A random random-effects meta-analysis was utilizedused. CoE was evaluated as per Grading of Recommendations Assessment, Development and Evaluation (GRADE) guidelines. RESULTS One hundred eighty-six studies evaluating 95 risk factors for PVL were included. Of the 2,509,507 neonates assessed, 16,569 were diagnosed with PVL. Intraventricular hemorrhage [adjusted odds ratio: 3.22 (2.52-4.12)] had moderate CoE for its association with PVL. Other factors such as hypocarbia, chorioamnionitis, PPROM >48 hour, multifetal pregnancy reduction, antenatal indomethacin, lack of antenatal steroids, perinatal asphyxia, ventilation, shock/hypotension, patent ductus arteriosus requiring surgical ligation, late-onset circulatory collapse, sepsis, necrotizing enterocolitis, and neonatal surgery showed significant association with PVL after adjustment for confounders (CoE: very low to low). Amongst the risk factors associated with mother placental fetal (MPF) triad, there was paucity of literature related to genetic predisposition and defective placentation. Sensitivity analysis revealed that the strength of association between invasive ventilation and PVL decreased over time (P < 0.01), suggesting progress in ventilation strategies. Limited studies had evaluated diffuse PVL. CONCLUSION Despite decades of research, our findings indicate that the CoE is low to very low for most of the commonly attributed risk factors of PVL. Future studies should evaluate genetic predisposition and defective placentation in the MPF triad contributing to PVL. Studies evaluating exclusively diffuse PVL are warranted.
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Affiliation(s)
- Thangaraj Abiramalatha
- Department of Neonatology, Sri Ramachandra Institute of Higher Education and Research, Chennai, India
| | - Tapas Bandyopadhyay
- Department of Neonatology, Dr Ram Manohar Lohia Hospital & Post Graduate Institute of Medical Education and Research, New Delhi, India
| | | | - Nasreen Banu Shaik
- Department of Neonatology, Ankura Hospital for Women and Children, Hyderabad, India
| | - Sivam Thanigainathan
- Department of Neonatology, All India Institute of Medical Sciences, Jodhpur, India
| | | | - Prakash Amboiram
- Department of Neonatology, Sri Ramachandra Institute of Higher Education and Research, Chennai, India
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Abstract
The patent ductus arteriosus (PDA) is the most commonly found cardiac condition in neonates. While there have been several studies and thousands of publications on the topic, the decision to treat the PDA is still strongly debated among cardiologists, surgeons, and neonatologists. This is in part due to the shortage of long-term benefits with the interventions studied. Practice variations still exist within sub-specialties and centers. This article briefly summarizes the history, embryology and histology of the PDA. It also succinctly discusses the hemodynamic significance of a PDA which builds the framework to review all the available literature on PDA closure in premature infants, though not a paradigm shift just yet; it introduces transcatheter PDA closure (TCPC) as a possible armament to the clinician for this age-old problem.
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Affiliation(s)
- Sarah Parkerson
- Department of Pediatrics, University of Tennessee, Memphis, TN, United States
| | - Ranjit Philip
- Division of Pediatric Cardiology, University of Tennessee, Memphis, TN, United States
| | - Ajay Talati
- Division of Neonatology, University of Tennessee, Memphis, TN, United States
| | - Shyam Sathanandam
- Division of Pediatric Cardiology, University of Tennessee, Memphis, TN, United States
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12
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Abstract
BACKGROUND Pulmonary hemorrhage (PH) is a life-threatening respiratory complication of extremely low-birth-weight infants (ELBWIs). However, the risk factors for PH are controversial. Therefore, the purpose of this study was to analyze the perinatal risk factors and short-term outcomes of PH in ELBWIs. METHODS This was a retrospective cohort study of live born infants who had birth weights that were less than 1000 g, lived for at least 12 hours, and did not have major congenital anomalies. A logistic regression model was established to analyze the risk factors associated with PH. RESULTS There were 168 ELBWIs born during this period. A total of 160 infants were included, and 30 infants were diagnosed with PH. Risk factors including gestational age, small for gestational age, intubation in the delivery room, surfactant in the delivery room, repeated use of surfactant, higher FiO2 during the first day, invasive ventilation during the first day and early onset sepsis (EOS) were associated with the occurrence of PH by univariate analysis. In the logistic regression model, EOS was found to be an independent risk factor for PH. The mortality and intraventricular hemorrhage rate of the group of ELBWIs with PH were significantly higher than those of the group of ELBWIs without PH. The rates of periventricular leukomalacia, moderate-to-severe bronchopulmonary dysplasia and severe retinopathy of prematurity, and the duration of the hospital stay were not significantly different between the PH and no-PH groups. CONCLUSIONS Although PH did not extend hospital stay or increase the risk of bronchopulmonary dysplasia, it increased the mortality and intraventricular hemorrhage rate in ELBWIs. EOS was the independent risk factor for PH in ELBWIs.
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Affiliation(s)
- Ting-Ting Wang
- grid.24516.340000000123704535Department of Neonatology, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, #2699, Gaoke western Road, Pudong District, Shanghai, 201204 China
| | - Ming Zhou
- grid.24516.340000000123704535Department of Neonatology, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, #2699, Gaoke western Road, Pudong District, Shanghai, 201204 China
| | - Xue-Feng Hu
- grid.24516.340000000123704535Department of Neonatology, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, #2699, Gaoke western Road, Pudong District, Shanghai, 201204 China
| | - Jiang-Qin Liu
- Department of Neonatology, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, #2699, Gaoke western Road, Pudong District, Shanghai, 201204, China.
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Kao RL, Huang W, Martin CM, Rui T. The effect of aerosolized indomethacin on lung inflammation and injury in a rat model of blunt chest trauma. Can J Surg 2019; 61:S208-S218. [PMID: 30418008 DOI: 10.1503/cjs.014318] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Background Acute lung contusion from blunt chest trauma (BCT) is characterized by an intense inflammatory response in the pulmonary parenchyma, which is associated with acute lung injury (ALI), acute respiratory distress syndrome and ventilator-associated pneumonia. We hypothesized that aerosolized indomethacin may reduce pulmonary inflammation and ALI in a rat model of BCT. Methods Sprague-Dawley rats were anesthetized and received a tracheotomy for administration of aerosolized medication through a catheter. The BCT procedure involved free-dropping a hollow metal weight (200 g) from a height of 25.5, 38.3 or 51.2 cm onto the right thorax. We administered 1 mg/kg of indomethacin or 1 mL/kg of saline intratracheally 15 minutes after BCT. The sham group had a similar procedure without the exposure to BCT and treatment. Three hours postimpact, we obtained arterial blood gas and analyzed bronchoalveolar lavage for protein concentration, polymorphonuclear leukocytes (PMN) and cytokine levels, and lung tissue samples were taken for histopathological analysis. Results The rats’ mean arterial pressure and heart rate dropped immediately postimpact but recovered close to that of the sham group after 30 minutes in both control and treatment groups. Compared to BCT alone, indomethacin significantly reduced the total protein level in the lungs (1.06 ± 0.39 mg/mL v. 3.75 ± 1.95 mg/mL, p = 0.006) and alveolar FD-70 leak (0.23 ± 0.19 μg/mL v. 0.53 ± 0.19 μg/mL, p = 0.02). Indomethacin also significantly attenuated the acute inflammatory response in percent PMN (13.33 ±7.5% v. 28.0 ± 12.96%, p = 0.04). Tumour necrosis factor-α and interleukin-6 decreased in the indomethacin group, but the decreases were not significant compared with other groups. Conclusion Aerosolized indomethacin has a protective effect against alveloar tissue permeability and inflammatory response induced by BCT.
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Affiliation(s)
- Raymond L. Kao
- From the Department of National Defense, Royal Canadian Medical Services, Ottawa, Ont. (Kao); Critical Care Western, Department of Medicine, Schulich School of Medicine and Dentistry, Western University, London, Ont. (Kao, Martin, Rui); and the Centre for Critical Illness Research, Lawson Health Research Institute, London, Ont. (Kao, Martin, Rui)
| | - Weixiong Huang
- From the Department of National Defense, Royal Canadian Medical Services, Ottawa, Ont. (Kao); Critical Care Western, Department of Medicine, Schulich School of Medicine and Dentistry, Western University, London, Ont. (Kao, Martin, Rui); and the Centre for Critical Illness Research, Lawson Health Research Institute, London, Ont. (Kao, Martin, Rui)
| | - Claudio M. Martin
- From the Department of National Defense, Royal Canadian Medical Services, Ottawa, Ont. (Kao); Critical Care Western, Department of Medicine, Schulich School of Medicine and Dentistry, Western University, London, Ont. (Kao, Martin, Rui); and the Centre for Critical Illness Research, Lawson Health Research Institute, London, Ont. (Kao, Martin, Rui)
| | - Tao Rui
- From the Department of National Defense, Royal Canadian Medical Services, Ottawa, Ont. (Kao); Critical Care Western, Department of Medicine, Schulich School of Medicine and Dentistry, Western University, London, Ont. (Kao, Martin, Rui); and the Centre for Critical Illness Research, Lawson Health Research Institute, London, Ont. (Kao, Martin, Rui)
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Sadeh-Vered T, Rosenberg N, Morag I, Berg AA, Kenet G, Strauss T. A Proposed Role of Surfactant in Platelet Function and Treatment of Pulmonary Hemorrhage in Preterm and Term Infants. Acta Haematol 2018; 140:215-220. [PMID: 30343298 DOI: 10.1159/000493082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Accepted: 08/13/2018] [Indexed: 11/19/2022]
Abstract
BACKGROUND We evaluated the effect of surfactant on platelet function as a potential contributing mechanism to the pathogenesis of pulmonary hemorrhage (PHEM) in term and preterm infants. METHODS Cord blood samples were collected from neonates following delivery. Complete blood count and platelet function were measured using a cone and platelet analyzer (CPA). Increasing surfactant concentrations were added to platelets in vitro, and the adhesion molecule P-selectin and the monoclonal antibody PAC-1 were evaluated following platelet activation by flow cytometry. RESULTS Forty-one infants (11 preterm and 30 term) were studied. CPA revealed a significant decrease in the average size of the aggregates and in platelet adhesion when surfactant was added. In term infants, the addition of surfactant to native platelets yielded an increased binding capacity of PAC-1 but did not affect P-selectin expression. In preterm infants, platelet activation with adenosine diphosphate in the presence of a high surfactant concentration (0.5 mg/mL) resulted in increased PAC-1 binding and no change in P-selectin expression. CONCLUSIONS The platelets of preterm infants are less active (hyporesponsive) than those of term infants, both in their native state as well as after stimulation with various agonists. Surfactant may play an important role in treating PHEM in preterm infants.
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Affiliation(s)
- Tal Sadeh-Vered
- Department of Neonatology, The Edmond and Lili Safra Children's Hospital, Tel Hashomer, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Nurit Rosenberg
- Thrombosis Institute, National Hemophilia Center, and Amalia Biron Thrombosis Research Institute, Sheba Medical Center, Tel Hashomer, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Iris Morag
- Department of Neonatology, The Edmond and Lili Safra Children's Hospital, Tel Hashomer, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Asaf A Berg
- Thrombosis Institute, National Hemophilia Center, and Amalia Biron Thrombosis Research Institute, Sheba Medical Center, Tel Hashomer, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Gili Kenet
- Thrombosis Institute, National Hemophilia Center, and Amalia Biron Thrombosis Research Institute, Sheba Medical Center, Tel Hashomer, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Tzipora Strauss
- Department of Neonatology, The Edmond and Lili Safra Children's Hospital, Tel Hashomer,
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv,
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Abstract
Among the common causes of neonatal admission to NICU, respiratory distress is one of the important causes. The neonatal respiratory distress is end result of various pulmonary and non-pulmonary causes. Differentiation of pulmonary causes of respiratory distress is important for the neonatologist as treatment differs with different etiologies. Conventionally, chest X-ray and sometimes CT scan have been used to identify the etiology of respiratory distress but these modalities have several limitations which make their use in NICU doubtful. In recent decades, there has been use of lung ultrasound (LUS) to identify and differentiate the etiologies of respiratory distress. The current available evidence show that LUS has good sensitivity and specificity to identify all the common causes of neonatal distress like respiratory distress syndrome, transient tachypnea of newborn, pneumothorax, and pneumonia. This review will cover the various uses of LUS in neonatal care with current available evidence.
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Affiliation(s)
- Deepak Sharma
- a Department of Neonatology , National Institute of Medical Sciences , Jaipur , India
| | - Nazanin Farahbakhsh
- b Department of Pulmonology , Mofid Children's Hospital, Shahid Beheshti University of Medical Sciences , Tehran , Iran
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Cosar H, Isik H, Cakır SC, Yar N, Goksen B, Tokbay H, Kertmen H, Erdoğan N, Durak I. Recombinant Activated Factor VIIa (rFVIIa) Treatment in Very-Low-Birth-Weight (VLBW) Premature Infants with Acute Pulmonary Hemorrhage: A Single-Center, Retrospective Study. Paediatr Drugs 2017; 19:53-58. [PMID: 27826851 DOI: 10.1007/s40272-016-0203-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
AIM We aimed to evaluate the efficacy of intravenous administration of recombinant activated factor VIIa (rFVIIa) for acute pulmonary hemorrhage treatment in very-low-birth-weight (VLBW) premature infants. PATIENTS AND METHODS This study was carried out retrospectively in premature infants with pulmonary hemorrhage that were ≤30 weeks gestational age or <1250 g birth weight. The data of all VLBW premature infants with pulmonary hemorrhage who were hospitalized in our neonatal intensive care unit between 01 January 2013 and 31 December 2015 were evaluated. Group 1 (n = 21) received rFVIIa support within the first 30 min of pulmonary hemorrhage plus conventional treatment, while Group 2 (n = 21) received conventional treatment only. RESULTS The number of patients whose pulmonary hemorrhage was stopped within the first 2 h was significantly higher in Group 1 than Group 2 (n = 14 vs n = 4; p = 0.002). After pulmonary hemorrhage, hemoglobin values of Group 1 were higher than Group 2 (11.12 ± 1.06 vs 10.14 ± 1.59 g/dL; p = 0.024). Erythrocyte suspension (1.43 ± 4.51 vs 5.71 ± 7.46 mL/kg; p = 0.030) and fresh frozen plasma use (5.71 ± 8.10 vs 19.52 ± 12.44 mL/kg; p < 0.001) in Group 1 were lower than those of Group 2. Prothrombin time, activated partial thromboplastin time, and international normalized ratio values in Group 1 were lower than those of Group 2 (p < 0.05). No statistically significant difference was identified in recurrence of pulmonary hemorrhage after 72 h, overall mortality, mortality from pulmonary hemorrhage, surfactant use, intubation time, hospitalization duration, intraventricular hemorrhage (IVH), severe IVH, patent ductus arteriosus rates, or short-term complication rates. CONCLUSION rFVIIa administration was observed to be effective in stopping pulmonary hemorrhage, reducing blood product requirement, and improving coagulation test parameters. Prospective studies are needed to evaluate the efficacy, reliability, and long-term results of rFVIIa in the prevention and treatment of pulmonary hemorrhage in premature infants.
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Affiliation(s)
- Hese Cosar
- Neonatal Intensive Care Unit, Private Egepol Hospital, 507 Street, No: 3, 35270, Konak, Izmir, Turkey.
| | - Halil Isik
- Neonatal Intensive Care Unit, Private Egepol Hospital, 507 Street, No: 3, 35270, Konak, Izmir, Turkey
| | - Salih Cagrı Cakır
- Neonatal Intensive Care Unit, Private Egepol Hospital, 507 Street, No: 3, 35270, Konak, Izmir, Turkey
| | - Nese Yar
- Neonatal Intensive Care Unit, Private Egepol Hospital, 507 Street, No: 3, 35270, Konak, Izmir, Turkey
| | - Bulent Goksen
- Neonatal Intensive Care Unit, Private Egepol Hospital, 507 Street, No: 3, 35270, Konak, Izmir, Turkey
| | - Hakan Tokbay
- Neonatal Intensive Care Unit, Private Egepol Hospital, 507 Street, No: 3, 35270, Konak, Izmir, Turkey
| | - Hasan Kertmen
- Neonatal Intensive Care Unit, Private Egepol Hospital, 507 Street, No: 3, 35270, Konak, Izmir, Turkey
| | - Nihal Erdoğan
- Neonatal Intensive Care Unit, Private Egepol Hospital, 507 Street, No: 3, 35270, Konak, Izmir, Turkey
| | - Ikbal Durak
- Neonatal Intensive Care Unit, Private Egepol Hospital, 507 Street, No: 3, 35270, Konak, Izmir, Turkey
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Kim M, Kim SK, Kim GJ, Lee JH. Impact of Postnatal Acidosis on Short Term Outcomes in Very Low Birth Weight Infants. Neonatal Med 2017. [DOI: 10.5385/nm.2017.24.1.7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Affiliation(s)
- Minchae Kim
- Department of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Seul-Ki Kim
- Department of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Geon Ju Kim
- Department of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jung Hyun Lee
- Department of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul, Korea
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Yum SK, Moon CJ, Youn YA, Lee HS, Kim SY, Sung IK. Risk factor profile of massive pulmonary haemorrhage in neonates: the impact on survival studied in a tertiary care centre. J Matern Fetal Neonatal Med 2015; 29:338-43. [PMID: 25567562 DOI: 10.3109/14767058.2014.1000853] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE Pulmonary haemorrhage (PH) in neonates is a fatal event leading to hazardous complications and even death. The aim of this study was to elucidate influential factors of the ultimate disease course that affect death or survival. METHODS Infants treated for PH in our institution from March 2009 to December 2013 were retrospectively reviewed. Infants transferred from other hospitals were excluded. Infants were grouped into two categories, deceased or survived at neonatal intensive care unit discharge. Information regarding perinatal history, initial management and laboratory results were obtained and analysed for each group. RESULTS Seventy infants fulfilled the inclusion criteria, 41 infants in the deceased group and 29 infants in the survived group. Overall, the infants in the deceased group displayed lower gestational age (27 and 1/7 ± 3.610 versus 29 and 3/7 ± 3.530 weeks, p = 0.009) and lower one-minute (2.342 ± 1.493 versus 4.035 ± 2.079, p < 0.001) and five-minute Apgar scores (2.342 ± 1.493 versus 4.035 ± 2.079, p < 0.001) and required aggressive resuscitation (p = 0.003) and a greater number of inotropes (2.195 ± 1.346 versus 1.069 ± 0.704, p < 0.001). Deceased infants were administered increased amounts of fluid during the first 24 h after birth (117.783 ± 32.325 versus 99.379 ± 17.728 mL/kg, p = 0.004). A relatively short prothrombin time impacted survival (p = 0.01), whereas platelet count was the only factor that significantly affected the time length from the onset of PH to death (p = 0.01). CONCLUSION Infants with a lower gestational age in a compromised state are prone to die once PH develops. The initial management of fluid intake not to exceed the adequate limit is especially important in order to prevent PH-related deaths when correcting hypoalbuminemia and coagulopathy.
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Affiliation(s)
- Sook Kyung Yum
- a Division of Neonatology, Department of Pediatrics , College of Medicine, The Catholic University of Korea , Seoul , Republic of Korea
| | - Cheong-Jun Moon
- a Division of Neonatology, Department of Pediatrics , College of Medicine, The Catholic University of Korea , Seoul , Republic of Korea
| | - Young-Ah Youn
- a Division of Neonatology, Department of Pediatrics , College of Medicine, The Catholic University of Korea , Seoul , Republic of Korea
| | - Hyun Seung Lee
- a Division of Neonatology, Department of Pediatrics , College of Medicine, The Catholic University of Korea , Seoul , Republic of Korea
| | - So-Young Kim
- a Division of Neonatology, Department of Pediatrics , College of Medicine, The Catholic University of Korea , Seoul , Republic of Korea
| | - In Kyung Sung
- a Division of Neonatology, Department of Pediatrics , College of Medicine, The Catholic University of Korea , Seoul , Republic of Korea
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Rimensberger PC. Surfactant. Pediatric and Neonatal Mechanical Ventilation 2015. [PMCID: PMC7175631 DOI: 10.1007/978-3-642-01219-8_28] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Exogenous pulmonary surfactant, widely used in neonatal care, is one of the best-studied treatments in neonatology, and its introduction in the 1990s led to a significant improvement in neonatal outcomes in preterm infants, including a decrease in mortality. This chapter provides an overview of surfactant composition and function in health and disease and summarizes the evidence for its clinical use.
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Affiliation(s)
- Peter C. Rimensberger
- Service of Neonatology and Pediatric Intensive Care, Department of Pediatrics, University Hospital of Geneva, Geneve, Switzerland
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Ferreira CHF, Carmona F, Martinez FE. Prevalence, risk factors and outcomes associated with pulmonary hemorrhage in newborns. Jornal de Pediatria (Versão em Português) 2014. [DOI: 10.1016/j.jpedp.2014.05.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Ferreira CH, Carmona F, Martinez FE. Prevalence, risk factors and outcomes associated with pulmonary hemorrhage in newborns. J Pediatr (Rio J) 2014; 90:316-22. [PMID: 24606947 DOI: 10.1016/j.jped.2013.12.008] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2013] [Revised: 10/06/2013] [Accepted: 10/07/2013] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVES to determine the prevalence of pulmonary hemorrhage in newborns and evaluate the associated risk factors and outcomes. METHODS this was a retrospective case-control study involving 67 newborns who met the criteria for pulmonary hemorrhage. A control was selected for each case: the next-born child of the same gender, similar weight (± 200g) and gestational age (± 1 week), with no previous pulmonary hemorrhage and no malformation diagnosis. Factors previous to pulmonary hemorrhage onset, as well as aspects associated to the condition, were assessed. RESULTS the prevalence was 6.7 for 1,000 live births, and the rates observed were: 8% among newborns <1,500g, and 11% among newborns <1,000g. Intubation in the delivery room (OR=7.16), SNAPPE II (OR=2.97), surfactant use (OR=3.7), and blood components used previously to pulmonary hemorrhage onset (OR=5.91) were associated with pulmonary hemorrhage. In the multivariate logistic regression model, only intubation in delivery room and previous use of blood components maintained the association. Children with pulmonary hemorrhage had higher mortality (OR=7.24). Among the survivors, the length of stay (p ≤ 0.01) and mechanical ventilation time were longer (OR=25.6), and oxygen use at 36 weeks of corrected age was higher (OR=7.67). CONCLUSIONS pulmonary hemorrhage is more prevalent in premature newborns, and is associated with intubation in the delivery room and previous use of blood components, leading to high mortality and worse clinical evolution.
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Affiliation(s)
- Cristina Helena Ferreira
- Section of Neonatology of Hospital das Clínicas de Ribeirão Preto, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, SP, Brazil.
| | - Fábio Carmona
- Department of Pediatrics, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, SP, Brazil
| | - Francisco Eulógio Martinez
- Department of Pediatrics, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, SP, Brazil
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Wagh D, Gill A. Is extubation associated with changes in ductal and pulmonary blood flow in extremely preterm neonates? J Paediatr Child Health 2013; 49:1052-6. [PMID: 23782138 DOI: 10.1111/jpc.12302] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 04/26/2013] [Indexed: 11/27/2022]
Abstract
AIM Early extubation is desirable in preterm neonates to minimise the risk of complications associated with prolonged intubation. The association of significant pulmonary haemorrhage (PH) with extubation in a cluster of very preterm infants instigated an assessment of ductal and pulmonary haemodynamic effects of early extubation. METHOD This is a prospective observational study in 20 neonates (gestation <28 weeks) undergoing early extubation. Echocardiography was performed 5 min pre-extubation and 20 min post-extubation to continuous positive airway pressure. Normal cardiac anatomy was ascertained. Left pulmonary artery (LPA) and ductus arteriosus diameter and flows were recorded. Doppler spectral pattern of velocity was recorded over a minimum of four cycles. RESULTS Median (range) gestation, birthweight and age at extubation were 26.5 (24.0-28.0) weeks, 932 (595-1260) g and 18 (6-51) h, respectively. There was no significant change in pulmonary flow post-extubation: ductal size: (pre--1.2 (0-3.3) mm, post--1.0 (0-3.5) mm); ductal flow: (pre--44 (0-515), post--49 (0-441) mL/kg/min); LPA diameter: (pre--2.4 (1.9-3.8) mm, post--2.6 (1.9-3.4) mm); LPA flow: (pre--112 (59-255), post--122 (58-188) mL/kg/min. There were 3 out of 20 infants who developed PH at the post-natal age of 2, 11 and 16 days after extubation. Ductal and LPA flow did not change significantly after extubation in infants with or without PH irrespective of the ductal status. CONCLUSIONS Early extubation was not associated with a significant change from baseline in ductal and pulmonary flow in extremely preterm infants.
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Affiliation(s)
- Deepika Wagh
- Department of Neonatal Paediatrics, King Edward Memorial Hospital for Women, Perth, Western Australia, Australia; Centre for Neonatal Education and Research, University of Western Australia, Perth, Western Australia, Australia
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Abstract
BACKGROUND Beginning 2007, the intratracheal route of epinephrine to end massive pulmonary hemorrhage (MPH) in very low-birthweight (VLBW) infants was modified at Kaohsiung Veterans General Hospital. The aim of the present study was to assess the change in outcomes for these infants, and to evaluate the risk factors of MPH. METHODS Using the database of the Premature Baby Foundation of Taiwan, the mortality, risk factors and characteristics of VLBW infants with or without MPH were compared between 2000-2006 and 2007-2010. RESULTS Between January 2000 and December 2010, 399 VLBW infants were admitted to Kaohsiung Veterans General Hospital. Mean birthweight (BW) was 1099.6 ± 272.7 g, and mean gestational age (GA) was 28.7 ± 2.9 weeks. The overall survival rate was 84.2%. Sixteen (4%) had MPH: 11 in the first group (2000-2006; 18.2% survival rate), and five in the second group (2007-2010; 80% survival rate; P= 0.0000002). Infants with MPH had lower mean BW (864.9 ± 301.4 g, P= 0.0004), smaller mean GA (26.1 ± 2.0 weeks, P= 0.0002), significantly lower Apgar scores at 1 and 5 min, higher severity of respiratory distress syndrome (RDS; grades 3 or 4), and greater use of surfactant than infants without MPH. They also had more intraventricular hemorrhage and higher mortality. CONCLUSIONS Smaller GA, lower BW, lower Apgar scores at 1 and 5 min, severe RDS (grades 3 or 4), and use of surfactant place VLBW infants at greater risk of MPH. Proper prenatal care and preventing premature labor and delivery were the most important preventative factors. A quick, deep thrust of intratracheal epinephrine with a catheter may improve survival.
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Affiliation(s)
- Ying-Yao Chen
- Division of Neonatology, Department of Pediatrics, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan.
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Dubova EA, Alieva LB, Baibarina EN, Burkova AS, Antonov AG, Nagovitsyna MN, Shchegolev AI. Morphology of Placental Villi and Development of Hemorrhages in Very Small Preterm Newborns. Bull Exp Biol Med 2012; 153:389-92. [DOI: 10.1007/s10517-012-1723-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Lodha A, Kamaluddeen M, Akierman A, Amin H. Role of hemocoagulase in pulmonary hemorrhage in preterm infants: a systematic review. Indian J Pediatr 2011; 78:838-44. [PMID: 21210254 DOI: 10.1007/s12098-010-0326-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2010] [Accepted: 12/01/2010] [Indexed: 10/18/2022]
Abstract
Pulmonary hemorrhage (PH) in neonates is associated with significant morbidity and mortality. Hemocoagulase is an established hemostatic agent and may be beneficial in neonates with severe PH.This systematic review was performed to investigate the clinical efficacy and safety of hemocoagulase therapy in preterm infants with Pulmonary hemorrhage (PH). The search strategy of the Cochrane Neonatal Review Group was used to determine outcomes following PH in neonates. The primary outcomes were mortality, duration of PH and length of mechanical ventilation. Other morbidities included: Respiratory Distress Syndrome, sepsis, intraventricular hemorrhage, necrotizing enterocolitis and bronchopulmonary dysplasia. The Cochrane Library, MEDLINE, EMBASE and CINAHL and bibliographies of identified trials were searched. The standard methods of the Cochrane Neonatal Review Group and van Tulder's guidelines were followed independently by the authors to assess study quality, enter data and report outcomes. Typical treatment effects were calculated using fixed confidence intervals (CI). Heterogeneity tests were performed. Two 'randomized' controlled studies related to the role of hemocoagulase in neonates were identified: One for treatment of PH and the other for prevention of PH. All preterm infants' of gestational age ≤ 32 weeks and birth weight ≤ 1500 g with PH were included in the study. A total of 48 and 72 preterm infants were enrolled and randomized into two groups in trial 1 and trial 2 respectively. Mortality risk was significantly lower in the treatment group (RR 0.52; 95%CI 0.31, 0.89, p < 0.02) when hemocoagulase was used as therapy compared to prophylactic use in neonates (RR 0.52; 95%CI 0.26, 1.07, p = 0.07). Duration of PH and mean duration of ventilation were shorter in both treatment and prophylactic groups. Use of hemocoagulase appeared to be effective in preventing PH in premature infants and reduced mortality. However, the potential risks of use of hemocoagulase including adverse effects and the effectiveness of hemocoagulase still remain uncertain due to the lack of good quality large randomized controlled studies. This needs further evaluation, before routine use can be recommended.
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Lodha A, Shah PS, Hellmann J. Pulmonary Haemorrhage Associated with Neonatal Neurological Disease. Heart Lung Circ 2009; 18:45-8. [DOI: 10.1016/j.hlc.2008.07.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2008] [Revised: 07/03/2008] [Accepted: 07/05/2008] [Indexed: 11/23/2022]
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Duval EL, Markhorst DG, Ramet J, van Vught AJ. High-frequency oscillatory ventilation in severe lung haemorrhage: A case study of three centres. ACTA ACUST UNITED AC 2009. [DOI: 10.1016/j.rmedc.2008.10.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Li L, Yu J, Wang J, Zhang X, Shen H, Yuan X, Zhang H. A prediction score model for risk factors of mortality in neonate with pulmonary hemorrhage: the experience of single neonatal intensive care unit in Southwest China. Pediatr Pulmonol 2008; 43:997-1003. [PMID: 18785623 DOI: 10.1002/ppul.20897] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
AIM To establish a prediction score model for mortality of neonates with pulmonary hemorrhage (PH). METHODS Mortality risk factors of PH were analyzed by logistic regression analysis in 244 neonates retrospectively. A prediction score model was developed according to regression coefficients of risk factors. The receiver operating characteristic curve (ROC) was also constructed and the cutoff was determined. RESULTS The overall mortality rate of PH was 74.59% (182/244). More patients from multiple pregnancies were found in the death group than in the survivor group (20.1% vs. 3.2%, P = 0.023). The survivor group infants had higher birth weight in average than death group infants (2,787 g vs. 2,339 g, P = 0.000). Significant differences were found between survivor and death groups in the rates of intraventricular hemorrhage (IVH) (25.8% vs. 53.8%, P = 0.000), heart failure (22.6% vs. 48.9%, P = 0.000) and sepsis (3.2% vs. 16.5%, P = 0.008). Birth weight, IVH, heart failure and sepsis were identified as independent mortality risk factors by logistic regression analysis. A score model predicting death was developed according to the regression coefficients, with a sensitivity of 0.846, a specificity of 0.661, a positive predictive value of 0.88 and a negative predictive value of 0.594 at a cutoff of 9 points. The low risk group, with a score of 9 or less, had a lower mortality rate as compared with the high risk group (40.6% vs. 88%, P = 0.000). CONCLUSIONS Low birth weight, IVH, heart failure and sepsis were the risk factors for mortality of PH. Those infants with a predictive score of more than 9 were at high risk for death.
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Affiliation(s)
- Luquan Li
- Department of Neonatology, Children's Hospital of Chongqing Medical University, Chongqing, PR China.
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Alfaleh K, Smyth JA, Roberts RS, Solimano A, Asztalos EV, Schmidt B. Prevention and 18-month outcomes of serious pulmonary hemorrhage in extremely low birth weight infants: results from the trial of indomethacin prophylaxis in preterms. Pediatrics 2008; 121:e233-8. [PMID: 18245398 DOI: 10.1542/peds.2007-0028] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVES A patent ductus arteriosus is a risk factor for pulmonary hemorrhage; however, despite halving the incidence of patent ductus arteriosus, indomethacin prophylaxis did not reduce the rate of pulmonary hemorrhage in the Trial of Indomethacin Prophylaxis in Preterms. Inclusion of mild bleeds after trauma to the upper airways may have masked a beneficial drug effect. Using the Trial of Indomethacin Prophylaxis in Preterms database, we studied the effect of prophylactic indomethacin on the prevention of serious hemorrhages in extremely low birth weight infants. We also compared the 18-month outcomes of infants with and without a serious pulmonary bleed. METHODS Pulmonary hemorrhage was classified as serious when it was treated with increased ventilator support, a higher concentration of oxygen, or transfusion of blood products. The cumulative risk for serious pulmonary hemorrhage was estimated for the first week of life and for the entire NICU stay. Poor outcome at a corrected age of 18 months was death or survival with cerebral palsy, cognitive delay, blindness, and/or deafness. RESULTS A total of 123 (10.2%) of 1202 infants developed a serious pulmonary hemorrhage. During week 1, prophylactic indomethacin reduced the risk for serious pulmonary hemorrhage by 35%; however, during the entire NICU stay, the risk for such hemorrhages was decreased by only 23%. A reduced risk for patent ductus arteriosus explained 80% of the beneficial effect of prophylactic indomethacin on serious pulmonary bleeds. The risks for death or for survival with neurosensory impairment were doubled after a serious pulmonary hemorrhage. CONCLUSIONS Extremely low birth weight infants with serious pulmonary hemorrhage have an increased risk for poor long-term outcome. Prophylactic indomethacin reduces the rate of early serious pulmonary hemorrhage, mainly through its action on patent ductus arteriosus. Prophylactic indomethacin is less effective in preventing serious pulmonary hemorrhages that occur after the first week of life.
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Affiliation(s)
- Khalid Alfaleh
- Department of Pediatrics, McMaster University, Hamilton, Ontario, Canada
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Shi Y, Tang S, Li H, Zhao J, Pan F. New Treatment of Neonatal Pulmonary Hemorrhage with Hemocoagulase in Addition to Mechanical Ventilation. Neonatology 2005; 88:118-21. [PMID: 15900094 DOI: 10.1159/000085826] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2004] [Accepted: 02/14/2005] [Indexed: 11/19/2022]
Abstract
OBJECTIVE To investigate the effect of a new treatment for neonatal pulmonary hemorrhage with hemocoagulase in addition to mechanical ventilation. METHODS Forty-eight newborn infants with pulmonary hemorrhage were included and divided randomly into 2 groups. Among them, 28 patients were treated with hemocoagulase in addition to mechanical ventilation, and the other 20 neonates served as controls and were treated with mechanical ventilation only. RESULTS Both the length of pulmonary hemorrhage and the duration of mechanical ventilation in the survivors were significantly shortened in the infants treated with hemocoagulase in addition to mechanical ventilation as compared to controls (p < 0.05). Moreover, all infants that were unable to remain in the neonatal intensive care unit died after discharge, and when their outcome was estimated as non-survivors, the mortality in the patients with this new treatment was 39.3% (11/28), which was significantly lower than in controls (75.0%, 15/20; p < 0.05). When the discharged infants were not included in the statistics, the mortality in the hemocoagulase group was 10.7% (3/28), which was also significantly lower than in controls (40.0%, 8/20; p < 0.05). CONCLUSIONS The new treatment with hemocoagulase in addition to mechanical ventilation is effective in newborn infants with pulmonary hemorrhage.
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Affiliation(s)
- Yuan Shi
- Department of Pediatrics, Research Institute of Surgery and Daping Hospital, Third Military Medical University, Chongqing, China.
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De Felice C, Latini G, Ginanneschi C, Santopietro R, Toti P, Fanetti G, La Gamma ML, Bagnoli F. Subclinical chorioamnionitis: an unrecognised risk factor for severe pulmonary haemorrhage in extremely low birth weight infants. Eur J Pediatr 2005; 164:111-2. [PMID: 15583934 DOI: 10.1007/s00431-004-1552-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2004] [Accepted: 08/01/2004] [Indexed: 10/25/2022]
Affiliation(s)
- Claudio De Felice
- Division of Neonatology, Neonatal Intensive Care Unit, Azienda Ospedaliera Universitaria Senese, "Le Scotte" General Hospital, Viale M. Bracci 16, 53100 Siena, Italy.
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Amizuka T, Shimizu H, Niida Y, Ogawa Y. Surfactant therapy in neonates with respiratory failure due to haemorrhagic pulmonary oedema. Eur J Pediatr 2003; 162:697-702. [PMID: 12898240 DOI: 10.1007/s00431-003-1276-x] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2003] [Revised: 05/27/2003] [Accepted: 05/29/2003] [Indexed: 10/26/2022]
Abstract
UNLABELLED We studied the clinical and biochemical factors associated with surfactant dysfunction and factors affecting the responsiveness to exogenous surfactant among 27 neonates with haemorrhagic pulmonary oedema (HPE). HPE was defined as the presence of a large amount of blood-stained lung effluent and respiratory failure which was difficult to differentiate from respiratory distress syndrome. Among the neonates, 33% had very low birth weight, 96% were preterm, 70% were delivered by caesarean section, and 44% had delivery room intubation. The onset of HPE was at 1.5+/-0.1 h (mean +/- SEM) after birth. In 26 cases, surfactant was administered at 3.0+/-1.3 h after the onset of HPE. The concentrations of surfactant protein A (SP-A), disaturated phosphatidylcholine (DSPC), and albumin in the epithelial lining fluid were determined using the first lung effluent from the patients. The level of inhibitory activity against pulmonary surfactant in the effluent was determined in vitro. Surfactant inhibitory activity was associated with lower birth weight, earlier gestational age, delivery room intubation, earlier onset of HPE, and lower SP-A or DSPC concentration. A good response to exogenous surfactant, which was defined as ventilatory index <0.047 at 1 h after surfactant administration, was seen in 82% of cases, and was associated with lower serum albumin, lower birth weight, and earlier gestational age. Cases with higher DSPC concentration prior to surfactant administration and shorter interval between the onset of HPE and surfactant administration showed an immediate response to surfactant, followed by no increase in ventilatory index for 24 h after surfactant administration. CONCLUSION exogenous surfactant appeared to be a useful adjunctive therapy for overcoming surfactant inhibition and normalising the respiratory status of infants with haemorraghic pulmonary oedema. Surfactant treatment for this indication awaits further investigations including a randomised controlled study.
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Affiliation(s)
- Takasuke Amizuka
- Department of Paediatrics, Saitama Medical Centre, Saitama Medical School, 1981 Kamoda-Tsujido, 350-8550 Kawagoe, Japan
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Abstract
Clinically apparent pulmonary hemorrhage (PH) occurs in 5% to 7% of very low birth weight (VLBW) infants with respiratory distress syndrome (RDS). It is associated with a mortality rate as high as 50% and significant pulmonary and central nervous system morbidities. There is no consensus on treatment modality. We present two VLBW infants with severe PH that did not respond to conventional treatment but were successfully treated with activated recombinant factor VII (rFVIIa). No untoward side effects were noted.
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Affiliation(s)
- Nicholas Olomu
- Department of Pediatrics and Human Development, Division of Neonatology, Michigan State University, East Lansing, MI 48909, USA
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Baier RJ, Loggins J, Kruger TE. Increased interleukin-8 and monocyte chemoattractant protein-1 concentrations in mechanically ventilated preterm infants with pulmonary hemorrhage. Pediatr Pulmonol 2002; 34:131-7. [PMID: 12112780 DOI: 10.1002/ppul.10141] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Pulmonary hemorrhage (PH) is a serious complication causing acute respiratory distress in the premature infant, and it is associated with significant mortality and morbidity. The role of inflammatory mediators in this condition is largely undefined. Serial tracheal aspirates (TA) were obtained at intervals from 65 mechanically ventilated infants with birth weights less than 1,250 g during the first 21 days of life. Clinically significant PH developed in 15 infants. TA concentrations of interleukin-8 (IL-8) and monocyte chemoattractant protein-1 (MCP-1) were determined by enzyme-linked immunosorbent assay (ELISA).PH was associated with an increased risk of death, bronchopulmonary dysplasia, intraventricular hemorrhage, and prolonged need for mechanical ventilation and supplemental oxygen. TA aspirate concentrations of IL-8 and MCP-1 (P = 0.001, ANOVA) were significantly increased in infants with PH compared to infants who did not develop this condition. TA cytokine concentrations were also significantly increased in infants who developed bronchopulmonary dysplasia (BPD). Peak TA concentrations of IL-8 and MCP-1 were significantly higher in infants with poor outcome (BPD or death). TA MCP-1 but not IL-8 concentrations were significantly higher in infants who were oxygen-dependent at 36 weeks postconceptional age. These data suggest a pathogenic role for IL-8 and MCP-1 in the development of adverse pulmonary outcome in preterm infants with clinically significant PH.
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Affiliation(s)
- R John Baier
- Department of Pediatrics, Louisiana State University Health Sciences Center, Shreveport 71130-3932, USA.
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Abstract
Exogenous surfactant therapy has been a significant advance in the management of preterm infants with RDS. It has become established as a standard part of the management of such infants. Both natural and synthetic surfactants lead to clinical improvement and decreased mortality, with natural surfactants having additional advantages over currently available synthetic surfactants. The use of prophylactic surfactant administered after initial stabilization at birth to infants at risk for RDS has benefits compared with rescue surfactant given to treat infants with established RDS. In infants who do not receive prophylaxis, earlier treatment (before 2 hours) has benefits over later treatment. The use of multiple doses of surfactant is a superior strategy to the use of a single dose, whereas the use of a higher threshold for retreatment seems to be as effective as a low threshold. Adverse effects of surfactant therapy are infrequent and usually not serious. Long-term follow-up of infants treated with surfactant in the neonatal period is reassuring. In the future we are likely to see the development of new types of surfactants. Further research is required to determine the optimal use of surfactant in conjunction with other respiratory interventions.
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Affiliation(s)
- G K Suresh
- Neonatal Division, Department of Pediatrics, University of Vermont College of Medicine, Burlington, Vermont, USA.
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Abstract
Our objectives in this study of pulmonary hemorrhage (PH) were to define common characteristics of infants who develop PH, identify factors associated with PH and report the outcome. Neonates (42/2980 admissions) with PH and matched controls were identified. Early gestation (< or = 35 weeks) infants with PH [EGPH] (n = 34; 12 survived) had occurrence of PH at 3.6 +/- 1.1 (mean +/- sem) days and were significantly associated with multiple births (p = 0.03), RDS (p < 0.01) and use of Survanta (p < 0.02). Among EGPH, small for gestational age (SGA) infants (n = 7) had a 100% mortality rate. Late gestation (> or = 36 weeks) infants with PH [LGPH] (n = 8; 6 survived) had occurrence of PH at 0.7 +/- 0.3 days and were significantly associated with low 1 minute (p = 0.04) and 5 minutes (p = 0.01) Apgar scores. All infants were managed with increases in mean airway pressure (MAP) and/or use of cocaine/epinephrine through the endotracheal tube. We have identified 2 groups of neonates with distinct factors associated with PH; use of 1:10,000 epinephrine (0.1 ml/kg) and/or 4% cocaine (4 mg/kg) may be useful adjuncts to increases in MAP for management of PH.
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Affiliation(s)
- V Bhandari
- Department of Pediatrics, University of Connecticut Health Center, Farmington, USA.
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