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Mitra S, de Boode WP, Weisz DE, Shah PS. Interventions for patent ductus arteriosus (PDA) in preterm infants: an overview of Cochrane Systematic Reviews. Cochrane Database Syst Rev 2023; 4:CD013588. [PMID: 37039501 PMCID: PMC10091483 DOI: 10.1002/14651858.cd013588.pub2] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
Abstract
BACKGROUND Patent ductus arteriosus (PDA) is associated with significant morbidity and mortality in preterm infants. Several non-pharmacological, pharmacological, and surgical approaches have been explored to prevent or treat a PDA. OBJECTIVES To summarise Cochrane Neonatal evidence on interventions (pharmacological or surgical) for the prevention of PDA and related complications, and interventions for the management of asymptomatic and symptomatic PDA in preterm infants. METHODS We searched the Cochrane Database of Systematic Reviews on 20 October 2022 for ongoing and published Cochrane Reviews on the prevention and treatment of PDA in preterm (< 37 weeks' gestation) or low birthweight (< 2500 g) infants. We included all published Cochrane Reviews assessing the following categories of interventions: pharmacological therapy using prostaglandin inhibitor drugs (indomethacin, ibuprofen, and acetaminophen), adjunctive pharmacological interventions, invasive PDA closure procedures, and non-pharmacological interventions. Two overview authors independently checked the eligibility of the reviews retrieved by the search, and extracted data from the included reviews using a predefined data extraction form. Any disagreements were resolved by discussion with a third overview author. Two overview authors independently assessed the methodological quality of the included reviews using the AMSTAR 2 (A MeaSurement Tool to Assess systematic Reviews) tool. We reported the GRADE certainty of evidence as assessed by the respective review authors using summary of findings tables. MAIN RESULTS We included 16 Cochrane Reviews, corresponding to 138 randomised clinical trials (RCT) and 11,856 preterm infants, on the prevention and treatment of PDA in preterm infants. One of the 16 reviews had no included studies, and therefore, did not contribute to the results. Six reviews reported on prophylactic interventions for the prevention of PDA and included pharmacological prophylaxis with prostaglandin inhibitor drugs, prophylactic surgical PDA ligation, and non-pharmacologic interventions (chest shielding during phototherapy and restriction of fluid intake); one review reported on the use of indomethacin for the management of asymptomatic PDA; nine reviews reported on interventions for the management of symptomatic PDA, and included pharmacotherapy with prostaglandin inhibitor drugs in various routes and dosages, surgical PDA ligation, and adjunct therapies (use of furosemide and dopamine in conjunction with indomethacin). The quality of reviews varied. Two reviews were assessed to be high quality, seven reviews were of moderate quality, five of low quality, while two reviews were deemed to be of critically low quality. For prevention of PDA, prophylactic indomethacin reduces severe intraventricular haemorrhage (IVH; relative risk (RR) 0.66, 95% confidence interval (CI) 0.53 to 0.82; 14 RCTs, 2588 infants), and the need for invasive PDA closure (RR 0.51, 95% CI 0.37 to 0.71; 8 RCTs, 1791 infants), but it does not appear to affect the composite outcome of death or moderate/severe neurodevelopmental disability (RR 1.02, 95% CI 0.90 to 1.15; 3 RCTs, 1491 infants). Prophylactic ibuprofen probably marginally reduces severe IVH (RR 0.67, 95% CI 0.45 to 1.00; 7 RCTs, 925 infants; moderate-certainty evidence), and the need for invasive PDA closure (RR 0.46, 95% CI 0.22 to 0.96; 7 RCTs, 925 infants; moderate-certainty evidence). The evidence is very uncertain on the effect of prophylactic acetaminophen on severe IVH (RR 1.09, 95% CI 0.07 to 16.39; 1 RCT, 48 infants). Necrotising enterocolitis (NEC) was lower with both prophylactic surgical ligation (RR 0.25, 95% CI 0.08 to 0.83; 1 RCT, 84 infants), and fluid restriction (RR 0.43, 95% CI 0.21 to 0.87; 4 RCTs, 526 infants). For treatment of asymptomatic PDA, indomethacin appears to reduce the development of symptomatic PDA post-treatment (RR 0.36, 95% CI 0.19 to 0.68; 3 RCTs, 97 infants; quality of source review: critically low). For treatment of symptomatic PDA, all available prostaglandin inhibitor drugs appear to be more effective in closing a PDA than placebo or no treatment (indomethacin: RR 0.30, 95% CI 0.23 to 0.38; 10 RCTs, 654 infants; high-certainty evidence; ibuprofen: RR 0.62, 95% CI 0.44 to 0.86; 2 RCTs, 206 infants; moderate-certainty evidence; early administration of acetaminophen: RR 0.35, 95% CI 0.23 to 0.53; 2 RCTs, 127 infants; low-certainty evidence). Oral ibuprofen appears to be more effective in PDA closure than intravenous (IV) ibuprofen (RR 0.38, 95% CI 0.26 to 0.56; 5 RCTs, 406 infants; moderate-certainty evidence). High-dose ibuprofen appears to be more effective in PDA closure than standard-dose ibuprofen (RR 0.37, 95% CI 0.22 to 0.61; 3 RCTs, 190 infants; moderate-certainty evidence). With respect to adverse outcomes, compared to indomethacin administration, NEC appears to be lower with ibuprofen (any route; RR 0.68, 95% CI 0.49 to 0.94; 18 RCTs, 1292 infants; moderate-certainty evidence), oral ibuprofen (RR 0.41, 95% CI 0.23 to 0.73; 7 RCTs, 249 infants; low-certainty evidence), and with acetaminophen (RR 0.42, 95% CI 0.19 to 0.96; 4 RCTs, 384 infants; low-certainty evidence). However, NEC appears to be increased with a prolonged course of indomethacin versus a shorter course (RR 1.87, 95% CI 1.07 to 3.27; 4 RCTs, 310 infants). AUTHORS' CONCLUSIONS This overview summarised the evidence from 16 Cochrane Reviews of RCTs regarding the effects of interventions for the prevention and treatment of PDA in preterm infants. Prophylactic indomethacin reduces severe IVH, but does not appear to affect the composite outcome of death or moderate/severe neurodevelopmental disability. Prophylactic ibuprofen probably marginally reduces severe IVH (moderate-certainty evidence), while the evidence is very uncertain on the effect of prophylactic acetaminophen on severe IVH. All available prostaglandin inhibitor drugs appear to be effective in symptomatic PDA closure compared to no treatment (high-certainty evidence for indomethacin; moderate-certainty evidence for ibuprofen; low-certainty evidence for early administration of acetaminophen). Oral ibuprofen appears to be more effective in PDA closure than IV ibuprofen (moderate-certainty evidence). High dose ibuprofen appears to be more effective in PDA closure than standard-dose ibuprofen (moderate-certainty evidence). There are currently two ongoing reviews, one on fluid restriction for symptomatic PDA, and the other on invasive management of PDA in preterm infants.
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Affiliation(s)
- Souvik Mitra
- Departments of Pediatrics, Community Health & Epidemiology, Dalhousie University & IWK Health Centre, Halifax, Canada
| | - Willem P de Boode
- Department of Perinatology, Division of Neonatology, Radboud UMC Amalia Children's Hospital, Nijmegen, Netherlands
| | - Dany E Weisz
- Department of Newborn and Developmental Paediatrics, Sunnybrook Health Sciences Centre, Toronto, Canada
| | - Prakeshkumar S Shah
- Department of Paediatrics and Institute of Health Policy, Management and Evaluation, University of Toronto Mount Sinai Hospital, Toronto, Canada
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Abiramalatha T, Ramaswamy VV, Bandyopadhyay T, Somanath SH, Shaik NB, Pullattayil AK, Weiner GM. Interventions to Prevent Bronchopulmonary Dysplasia in Preterm Neonates: An Umbrella Review of Systematic Reviews and Meta-analyses. JAMA Pediatr 2022; 176:502-516. [PMID: 35226067 DOI: 10.1001/jamapediatrics.2021.6619] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
IMPORTANCE Bronchopulmonary dysplasia (BPD) has multifactorial etiology and long-term adverse consequences. An umbrella review enables the evaluation of multiple proposed interventions for the prevention of BPD. OBJECTIVE To summarize and assess the certainty of evidence of interventions proposed to decrease the risk of BPD from published systematic reviews. DATA SOURCES MEDLINE, Cochrane Central Register of Controlled Trials, EMBASE, and Web of Science were searched from inception until November 9, 2020. STUDY SELECTION Meta-analyses of randomized clinical trials comparing interventions in preterm neonates that included BPD as an outcome. DATA EXTRACTION AND SYNTHESIS Data extraction was performed in duplicate. Quality of systematic reviews was evaluated using Assessment of Multiple Systematic Reviews version 2, and certainty of evidence was assessed using Grading of Recommendation, Assessment, Development, and Evaluation. MAIN OUTCOMES AND MEASURES (1) BPD or mortality at 36 weeks' postmenstrual age (PMA) and (2) BPD at 36 weeks' PMA. RESULTS A total of 154 systematic reviews evaluating 251 comparisons were included, of which 110 (71.4%) were high-quality systematic reviews. High certainty of evidence from high-quality systematic reviews indicated that delivery room continuous positive airway pressure compared with intubation with or without routine surfactant (relative risk [RR], 0.80 [95% CI, 0.68-0.94]), early selective surfactant compared with delayed selective surfactant (RR, 0.83 [95% CI, 0.75-0.91]), early inhaled corticosteroids (RR, 0.86 [95% CI, 0.75-0.99]), early systemic hydrocortisone (RR, 0.90 [95% CI, 0.82-0.99]), avoiding endotracheal tube placement with delivery room continuous positive airway pressure and use of less invasive surfactant administration (RR, 0.90 [95% CI, 0.82-0.99]), and volume-targeted compared with pressure-limited ventilation (RR, 0.73 [95% CI, 0.59-0.89]) were associated with decreased risk of BPD or mortality at 36 weeks' PMA. Moderate to high certainty of evidence showed that inhaled nitric oxide, lower saturation targets (85%-89%), and vitamin A supplementation are associated with decreased risk of BPD at 36 weeks' PMA but not the competing outcome of BPD or mortality, indicating they may be associated with increased mortality. CONCLUSIONS AND RELEVANCE A multipronged approach of delivery room continuous positive airway pressure, early selective surfactant administration with less invasive surfactant administration, early hydrocortisone prophylaxis in high-risk neonates, inhaled corticosteroids, and volume-targeted ventilation for preterm neonates requiring invasive ventilation may decrease the combined risk of BPD or mortality at 36 weeks' PMA.
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Affiliation(s)
- Thangaraj Abiramalatha
- Department of Neonatology, Kovai Medical Center and Hospital (KMCH) & KMCH Institute of Health Sciences and Research, Coimbatore, India
| | | | - Tapas Bandyopadhyay
- Department of Neonatology, Dr Ram Manohar Lohia Hospital & Post Graduate Institute of Medical Education and Research, New Delhi, India
| | | | | | | | - Gary M Weiner
- Department of Pediatrics-Neonatology, University of Michigan, Ann Arbor
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Mitra S, Jain A, Ting JY, Ben Fadel N, Drolet C, Abou Mehrem A, Soraisham A, Jasani B, Louis D, Lapointe A, Dorling J, Khurshid F, Hyderi A, Kumaran K, Bodani J, Weisz D, Alvaro R, Adie M, Stavel M, Morin A, Bhattacharya S, Kanungo J, Canning R, Ye XY, Hatfield T, Gardner CE, Shah P. Relative effectiveness and safety of pharmacotherapeutic agents for patent ductus arteriosus (PDA) in preterm infants: a protocol for a multicentre comparative effectiveness study (CANRxPDA). BMJ Open 2021; 11:e050682. [PMID: 33952559 PMCID: PMC8103361 DOI: 10.1136/bmjopen-2021-050682] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
INTRODUCTION Patent ductus arteriosus (PDA) is the most common cardiovascular problem that develops in preterm infants and evidence regarding the best treatment approach is lacking. Currently available medical options to treat a PDA include indomethacin, ibuprofen or acetaminophen. Wide variation exists in PDA treatment practices across Canada. In view of this large practice variation across Canadian neonatal intensive care units (NICUs), we plan to conduct a comparative effectiveness study of the different pharmacotherapeutic agents used to treat the PDA in preterm infants. METHODS AND ANALYSIS A multicentre prospective observational comparative-effectiveness research study of extremely preterm infants born <29 weeks gestational age with an echocardiography confirmed PDA will be conducted. All participating sites will self-select and adhere to one of the following primary pharmacotherapy protocols for all preterm babies who are deemed to require treatment.Standard dose ibuprofen (10 mg/kg followed by two doses of 5 mg/kg at 24 hours intervals) irrespective of postnatal age (oral/intravenous).Adjustable dose ibuprofen (oral/intravenous) (10 mg/kg followed by two doses of 5 mg/kg at 24 hours intervals if treated within the first 7 days after birth. Higher doses of ibuprofen up to 20 mg/kg followed by two doses of 10 mg/kg at 24 hours intervals if treated after the postnatal age cut-off for lower dose as per the local centre policy).Acetaminophen (oral/intravenous) (15 mg/kg every 6 hours) for 3-7 days.Intravenous indomethacin (0.1-0.3 mg/kg intravenous every 12-24 hours for a total of three doses). OUTCOMES The primary outcome is failure of primary pharmacotherapy (defined as need for further medical and/or surgical/interventional treatment following an initial course of pharmacotherapy). The secondary outcomes include components of the primary outcome as well as clinical outcomes related to response to treatment or adverse effects of treatment. SITES AND SAMPLE SIZE The study will be conducted in 22 NICUs across Canada with an anticipated enrollment of 1350 extremely preterm infants over 3 years. ANALYSIS To examine the relative effectiveness of the four treatment strategies, the primary outcome will be compared pairwise between the treatment groups using χ2 test. Secondary outcomes will be compared pairwise between the treatment groups using χ2 test, Student's t-test or Wilcoxon rank sum test as appropriate. To further examine differences in the primary and secondary outcomes between the four groups, multiple logistic or linear regression models will be applied for each outcome on the treatment groups, adjusted for potential confounders using generalised estimating equations to account for within-unit-clustering. As a sensitivity analysis, the difference in the primary and secondary outcomes between the treatment groups will also be examined using propensity score method with inverse probability weighting approach. ETHICS AND DISSEMINATION The study has been approved by the IWK Research Ethics Board (#1025627) as well as the respective institutional review boards of the participating centres. TRIAL REGISTRATION NUMBER NCT04347720.
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Affiliation(s)
- Souvik Mitra
- Division of Neonatal Perinatal Medicine, Department of Pediatrics, IWK Heath Centre & Dalhousie University, Halifax, Nova Scotia, Canada
| | - Amish Jain
- Paediatrics, Sinai Health System, Toronto, Ontario, Canada
| | - Joseph Y Ting
- Pediatrics, University of British Columbia, Vancouver, British Columbia, Canada
| | | | - Christine Drolet
- Centre Hospitalier de l'Université Laval, Quebec City, Québec, Canada
| | | | | | - Bonny Jasani
- Neonatology, Hospital for Sick Children, Toronto, Ontario, Canada
| | - Deepak Louis
- Health Sciences Centre, Winnipeg, Manitoba, Canada
| | - Anie Lapointe
- Centre Hospitalier Universitaire Ste-Justine, Université de Montréal, Montreal, Québec, Canada
| | - Jon Dorling
- Division of Neonatal-Perinatal Medicine, Faculty of Medicine, Dalhousie University, IWK Health Centre, Halifax, Nova Scotia, Canada
| | | | - Abbas Hyderi
- Stollery Children Hospital, University of Alberta, Edmonton, Alberta, Canada
| | - Kumar Kumaran
- Stollery Children Hospital, University of Alberta, Edmonton, Alberta, Canada
| | - Jaya Bodani
- Regina General Hospital, Regina, Saskatchewan, Canada
| | - Dany Weisz
- Newborn and Developmental Paediatrics, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - Ruben Alvaro
- Department of Pediatrics, University of Manitoba, Winnipeg, Manitoba, Canada
| | | | - Miroslav Stavel
- Royal Columbian Hospital, New Westminster, British Columbia, Canada
| | - Alyssa Morin
- Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, Quebec, Canada
| | - Soume Bhattacharya
- Western University, Schulich School of Medicine and Dentistry, London, Ontario, Canada
| | - Jaideep Kanungo
- Victoria General Hospital, Victoria, British Columbia, Canada
| | - Rody Canning
- Moncton Hospital, Moncton, New Brunswick, Canada
| | - Xiang Y Ye
- MiCare Research Center, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Tara Hatfield
- Division of Neonatal Perinatal Medicine, Department of Pediatrics, IWK Heath Centre & Dalhousie University, Halifax, Nova Scotia, Canada
| | - Courtney E Gardner
- Division of Neonatal Perinatal Medicine, Department of Pediatrics, IWK Heath Centre & Dalhousie University, Halifax, Nova Scotia, Canada
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Evans P, O'Reilly D, Flyer JN, Soll R, Mitra S. Indomethacin for symptomatic patent ductus arteriosus in preterm infants. Cochrane Database Syst Rev 2021; 1:CD013133. [PMID: 33448032 PMCID: PMC8095061 DOI: 10.1002/14651858.cd013133.pub2] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Symptomatic patent ductus arteriosus (PDA) is associated with mortality and morbidity in preterm infants. In these infants, prophylactic use of indomethacin, a non-selective cyclooxygenase inhibitor, has demonstrated short-term clinical benefits. The effect of indomethacin in preterm infants with a symptomatic PDA remains unexplored. OBJECTIVES To determine the effectiveness and safety of indomethacin (given by any route) compared to placebo or no treatment in reducing mortality and morbidity in preterm infants with a symptomatic PDA. SEARCH METHODS We used the standard search strategy of Cochrane Neonatal to search Cochrane Central Register of Controlled Trials (CENTRAL; 2020, Issue 7), in the Cochrane Library; Ovid MEDLINE(R) and Epub Ahead of Print, In-Process & Other Non-Indexed Citations, Daily and Versions(R); and Cumulative Index to Nursing and Allied Health Literature (CINAHL), on 31 July 2020. We also searched clinical trials databases and the reference lists of retrieved articles for randomized controlled trials (RCTs) and quasi-RCTs. SELECTION CRITERIA We included RCTs and quasi-RCTs that compared indomethacin (any dose, any route) versus placebo or no treatment in preterm infants. DATA COLLECTION AND ANALYSIS We used the standard methods of Cochrane Neonatal, with separate evaluation of trial quality and data extraction by at least two review authors. We used the GRADE approach to assess the certainty of evidence for the following outcomes: failure of PDA closure within one week of administration of the first dose of indomethacin; bronchopulmonary dysplasia (BPD) at 28 days' postnatal age and at 36 weeks' postmenstrual age; proportion of infants requiring surgical ligation or transcatheter occlusion; all-cause neonatal mortality; necrotizing enterocolitis (NEC) (≥ Bell stage 2); and mucocutaneous or gastrointestinal bleeding. MAIN RESULTS We included 14 RCTs (880 preterm infants). Four out of the 14 included studies were judged to have high risk of bias in one or more domains. Indomethacin administration was associated with a large reduction in failure of PDA closure within one week of administration of the first dose (risk ratio (RR) 0.30, 95% confidence interval (CI) 0.23 to 0.38; risk difference (RD) -0.52, 95% CI -0.58 to -0.45; 10 studies, 654 infants; high-certainty evidence). There may be little to no difference in the incidence of BPD (BPD defined as supplemental oxygen need at 28 days' postnatal age: RR 1.45, 95% CI 0.60 to 3.51; 1 study, 55 infants; low-certainty evidence; BPD defined as supplemental oxygen need at 36 weeks' postmenstrual age: RR 0.80, 95% CI 0.41 to 1.55; 1 study, 92 infants; low-certainty evidence) and probably little to no difference in mortality (RR 0.78, 95% CI 0.46 to 1.33; 8 studies, 314 infants; moderate-certainty evidence) with use of indomethacin for symptomatic PDA. No differences were demonstrated in the need for surgical PDA ligation (RR 0.66, 95% CI 0.33 to 1.29; 7 studies, 275 infants; moderate-certainty evidence), in NEC (RR 1.27, 95% CI 0.36 to 4.55; 2 studies, 147 infants; low-certainty evidence), or in mucocutaneous or gastrointestinal bleeding (RR 0.33, 95% CI 0.01 to 7.58; 2 studies, 119 infants; low-certainty evidence) with use of indomethacin compared to placebo or no treatment. Certainty of evidence for BPD, surgical PDA ligation, NEC, and mucocutaneous or gastrointestinal bleeding was downgraded for very serious or serious imprecision. AUTHORS' CONCLUSIONS High-certainty evidence shows that indomethacin is effective in closing a symptomatic PDA compared to placebo or no treatment in preterm infants. Evidence is insufficient regarding effects of indomethacin on other clinically relevant outcomes and medication-related adverse effects.
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Affiliation(s)
- Peter Evans
- Department of Pediatrics, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Deirdre O'Reilly
- Division of Neonatal-Perinatal Medicine, Department of Pediatrics, Larner College of Medicine at the University of Vermont, Burlington, Vermont, USA
| | - Jonathan N Flyer
- Division of Pediatric Cardiology, Department of Pediatrics, Larner College of Medicine at the University of Vermont, Burlington, Vermont, USA
| | - Roger Soll
- Division of Neonatal-Perinatal Medicine, Department of Pediatrics, Larner College of Medicine at the University of Vermont, Burlington, Vermont, USA
| | - Souvik Mitra
- Departments of Pediatrics, Community Health & Epidemiology, Dalhousie University & IWK Health Centre, Halifax, Canada
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Ficial B, Corsini I, Fiocchi S, Schena F, Capolupo I, Cerbo RM, Condò M, Doni D, La Placa S, Porzio S, Rossi K, Salvadori S, Savoia M. Survey of PDA management in very low birth weight infants across Italy. Ital J Pediatr 2020; 46:22. [PMID: 32059689 PMCID: PMC7023762 DOI: 10.1186/s13052-020-0773-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 01/12/2020] [Indexed: 11/29/2022] Open
Abstract
Background The optimal management of PDA in very low birth weight (VLBW) infants is still controversial. Aim of our study was to investigate the management of PDA in the Italian neonatal intensive care units (NICU). Methods We conducted an on-line survey study from June to September 2017. A 50-items questionnaire was developed by the Italian Neonatal Cardiology Study Group and was sent to Italian NICUs. Results The overall response rate was 72%. Diagnosis of PDA was done by neonatologists, cardiologists or both (62, 12 and 28% respectively). PDA significance was assessed by a comprehensive approach in all centers, although we found a heterogeneous combination of parameters and cut-offs used. None used prophylactic treatment. 19% of centers treated PDA in the first 24 h, 60% after the first 24 h, following screening echocardiography or clinical symptoms, 18% after the first 72 h and 2% after the first week. In the first course of treatment ibuprofen, indomethacin and paracetamol were used in 87, 6 and 7% of centers respectively. Median of surgical ligation was 3% (1–6%). Conclusions Significant variations exist in the management of PDA in Italy. Conservative strategy and targeted treatment to infants older than 24 h with echocardiographic signs of hemodynamic significance seemed to be the most adopted approach.
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Affiliation(s)
- Benjamim Ficial
- Neonatal Intensive Care Unit, Azienda Ospedaliera Universitaria Integrata di Verona, P.le Stefani 1, 37126, Verona, Italy.
| | - Iuri Corsini
- Division of Neonatalogy, Careggi University Hospital of Florence, Florence, Italy
| | - Stefano Fiocchi
- Neonatologia e Terapia Intensiva Neonatale, Ospedale Valduce, Como, Italy
| | - Federico Schena
- Neonatal Intensive Care Unit, Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico di Milano, Milan, Italy
| | - Irma Capolupo
- Neonatal Intensive Care Unit, Ospedale Pediatrico Bambino Gesù, Rome, Italy
| | - Rosa Maria Cerbo
- Neonatal Intensive Care Unit, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Manuela Condò
- Neonatal Intensive Care Unit, Ospedale A. Manzoni, Lecco, Italy
| | - Daniela Doni
- Neonatal Intensive Care Unit, FMBBM San Gerardo, Monza, Italy
| | | | | | - Katia Rossi
- Neonatal Intensive Care Unit, Policlinico di Modena, Modena, Italy
| | - Sabrina Salvadori
- Neonatal Intensive Care Unit, Azienda Ospedaliera-Università di Padova, Padova, Italy
| | - Marilena Savoia
- Neonatal Intensive Care Unit, Azienda Ospedaliera Universitaria S Maria della Misericordia, Udine, Italy
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Abstract
Necrotizing enterocolitis is a devastating intestinal disease affecting preterm infants. In spite of ongoing research and advancement in neonatal care, mortality remains high, especially in infants with advanced disease. The mechanism of disease development, the progression of intestinal injury, and management remain areas of ongoing research and controversy. In this review, we examine our current understanding of the disease, its epidemiology, the risk factors associated with the development of the disease, and its pathophysiology. We also describe current management and new emerging research highlighting potential future directions.
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Affiliation(s)
- Mashriq Alganabi
- Division of General and Thoracic Surgery, Translational Medicine Program, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Carol Lee
- Division of General and Thoracic Surgery, Translational Medicine Program, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Edoardo Bindi
- Division of General and Thoracic Surgery, Translational Medicine Program, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Bo Li
- Division of General and Thoracic Surgery, Translational Medicine Program, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Agostino Pierro
- Division of General and Thoracic Surgery, Translational Medicine Program, The Hospital for Sick Children, Toronto, Ontario, Canada
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7
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Evans P, O'Reilly D, Flyer JN, Mitra S, Soll R. Indomethacin for symptomatic patent ductus arteriosus in preterm infants. Hippokratia 2018. [DOI: 10.1002/14651858.cd013133] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Peter Evans
- Children's Hospital of Philadelphia; Department of Pediatrics; 34th Street and Civic Center Boulevard Philadelphia Pennsylvania USA 19104
| | - Deirdre O'Reilly
- Larner College of Medicine at the University of Vermont; Division of Neonatal-Perinatal Medicine, Department of Pediatrics; Burlington Vermont USA 05401
| | - Jonathan N Flyer
- Larner College of Medicine at the University of Vermont; Division of Pediatric Cardiology, Department of Pediatrics; 111 Colchester Avenue Burlington Vermont USA
| | - Souvik Mitra
- Dalhousie University & IWK Health Care; Division of Neonatal Perinatal Medicine, Department of Pediatrics; G-2214, 5850/5980 University Avenue Halifax Nova Scotia Canada B3K 6R8
| | - Roger Soll
- Larner College of Medicine at the University of Vermont; Division of Neonatal-Perinatal Medicine, Department of Pediatrics; Burlington Vermont USA 05401
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Lewis TR, Shelton EL, Van Driest SL, Kannankeril PJ, Reese J. Genetics of the patent ductus arteriosus (PDA) and pharmacogenetics of PDA treatment. Semin Fetal Neonatal Med 2018; 23:232-238. [PMID: 29510900 PMCID: PMC6098727 DOI: 10.1016/j.siny.2018.02.006] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Patent ductus arteriosus (PDA) is a frequent, complex, and difficult to treat clinical syndrome among preterm infants in the neonatal intensive care unit. In addition to known clinical risk factors, there are emerging data about genetic predisposition to PDA in both animal and human models. Clinical response and toxicity from drugs used to treat PDA are highly variable. Developmental and genetic aspects of pharmacokinetics and pharmacodynamics influence exposure and response to pharmacologic therapies. Given the variable efficacy and toxicity of known drug therapies, novel therapeutic targets for PDA treatment offer the promise of precision medicine. This review addresses the known genetic contributions to prolonged ductal patency, variability in response to drug therapy for PDA, and potential novel drug targets for future PDA treatment discovery.
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Affiliation(s)
- Tamorah R Lewis
- Department of Pediatrics, Children's Mercy Hospitals & Clinics, University of Missouri, Kansas City School of Medicine, Kansas City, MO, USA
| | - Elaine L Shelton
- Department of Pediatrics, Monroe Carell Jr. Children's Hospital at Vanderbilt and Vanderbilt University Medical Center, Nashville, TN, USA; Department of Pharmacology, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Sara L Van Driest
- Department of Pediatrics, Monroe Carell Jr. Children's Hospital at Vanderbilt and Vanderbilt University Medical Center, Nashville, TN, USA; Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Prince J Kannankeril
- Department of Pediatrics, Monroe Carell Jr. Children's Hospital at Vanderbilt and Vanderbilt University Medical Center, Nashville, TN, USA
| | - Jeff Reese
- Department of Pediatrics, Monroe Carell Jr. Children's Hospital at Vanderbilt and Vanderbilt University Medical Center, Nashville, TN, USA; Department of Cell and Developmental Biology, Vanderbilt University, Nashville, TN, USA; Department of Biomedical Engineering, Vanderbilt University, Nashville, TN, USA.
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Mitra S, Florez ID, Tamayo ME, Mbuagbaw L, Vanniyasingam T, Veroniki AA, Zea AM, Zhang Y, Sadeghirad B, Thabane L. Association of Placebo, Indomethacin, Ibuprofen, and Acetaminophen With Closure of Hemodynamically Significant Patent Ductus Arteriosus in Preterm Infants: A Systematic Review and Meta-analysis. JAMA 2018; 319:1221-1238. [PMID: 29584842 PMCID: PMC5885871 DOI: 10.1001/jama.2018.1896] [Citation(s) in RCA: 208] [Impact Index Per Article: 34.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
IMPORTANCE Despite increasing emphasis on conservative management of patent ductus arteriosus (PDA) in preterm infants, different pharmacotherapeutic interventions are used to treat those developing a hemodynamically significant PDA. OBJECTIVES To estimate the relative likelihood of hemodynamically significant PDA closure with common pharmacotherapeutic interventions and to compare adverse event rates. DATA SOURCES AND STUDY SELECTION The databases of MEDLINE, Embase, and the Cochrane Central Register of Controlled Trials were searched from inception until August 15, 2015, and updated on December 31, 2017, along with conference proceedings up to December 2017. Randomized clinical trials that enrolled preterm infants with a gestational age younger than 37 weeks treated with intravenous or oral indomethacin, ibuprofen, or acetaminophen vs each other, placebo, or no treatment for a clinically or echocardiographically diagnosed hemodynamically significant PDA. DATA EXTRACTION AND SYNTHESIS Data were independently extracted in pairs by 6 reviewers and synthesized with Bayesian random-effects network meta-analyses. MAIN OUTCOMES AND MEASURES Primary outcome: hemodynamically significant PDA closure; secondary: included surgical closure, mortality, necrotizing enterocolitis, and intraventricular hemorrhage. RESULTS In 68 randomized clinical trials of 4802 infants, 14 different variations of indomethacin, ibuprofen, or acetaminophen were used as treatment modalities. The overall PDA closure rate was 67.4% (2867 of 4256 infants). A high dose of oral ibuprofen was associated with a significantly higher odds of PDA closure vs a standard dose of intravenous ibuprofen (odds ratio [OR], 3.59; 95% credible interval [CrI], 1.64-8.17; absolute risk difference, 199 [95% CrI, 95-258] more per 1000 infants) and a standard dose of intravenous indomethacin (OR, 2.35 [95% CrI, 1.08-5.31]; absolute risk difference, 124 [95% CrI, 14-188] more per 1000 infants). Based on the ranking statistics, a high dose of oral ibuprofen ranked as the best pharmacotherapeutic option for PDA closure (mean surface under the cumulative ranking [SUCRA] curve, 0.89 [SD, 0.12]) and to prevent surgical PDA ligation (mean SUCRA, 0.98 [SD, 0.08]). There was no significant difference in the odds of mortality, necrotizing enterocolitis, or intraventricular hemorrhage with use of placebo or no treatment compared with any of the other treatment modalities. CONCLUSIONS AND RELEVANCE A high dose of oral ibuprofen was associated with a higher likelihood of hemodynamically significant PDA closure vs standard doses of intravenous ibuprofen or intravenous indomethacin; placebo or no treatment did not significantly change the likelihood of mortality, necrotizing enterocolitis, or intraventricular hemorrhage. TRIAL REGISTRATION PROSPERO Identifier: CRD42015015797.
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Affiliation(s)
- Souvik Mitra
- Division of Neonatal-Perinatal Medicine, Department of Pediatrics, Dalhousie University and IWK Health Center, Halifax, Nova Scotia, Canada
- Department of Health Research Methods, Evidence and Impact, McMaster University, Hamilton, Ontario, Canada
| | - Ivan D. Florez
- Department of Health Research Methods, Evidence and Impact, McMaster University, Hamilton, Ontario, Canada
- Department of Pediatrics, Universidad de Antioquia, Medellin, Colombia
| | - Maria E. Tamayo
- Department of Pediatrics, Universidad de Antioquia, Medellin, Colombia
| | - Lawrence Mbuagbaw
- Department of Health Research Methods, Evidence and Impact, McMaster University, Hamilton, Ontario, Canada
- Biostatistics Unit, Father Sean O’Sullivan Research Centre, St Joseph’s Healthcare Hamilton, Hamilton, Ontario, Canada
| | - Thuva Vanniyasingam
- Department of Health Research Methods, Evidence and Impact, McMaster University, Hamilton, Ontario, Canada
- Biostatistics Unit, Father Sean O’Sullivan Research Centre, St Joseph’s Healthcare Hamilton, Hamilton, Ontario, Canada
| | | | - Adriana M. Zea
- Department of Health Research Methods, Evidence and Impact, McMaster University, Hamilton, Ontario, Canada
| | - Yuan Zhang
- Department of Health Research Methods, Evidence and Impact, McMaster University, Hamilton, Ontario, Canada
| | - Behnam Sadeghirad
- Department of Health Research Methods, Evidence and Impact, McMaster University, Hamilton, Ontario, Canada
- HIV/STI Surveillance Research Center and WHO Collaborating Center for HIV Surveillance, Kerman University of Medical Sciences, Kerman, Iran
- Institute for Futures Studies in Health, Kerman University of Medical Sciences, Kerman, Iran
- Michael G. DeGroote Institute for Pain Research and Care, McMaster University, Hamilton, Ontario, Canada
| | - Lehana Thabane
- Department of Health Research Methods, Evidence and Impact, McMaster University, Hamilton, Ontario, Canada
- Department of Pediatrics and Anesthesia, McMaster University, Hamilton, Ontario, Canada
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Poryo M, Khosrawikatoli S, Abdul-Khaliq H, Meyer S. Potential and Limitations of Cochrane Reviews in Pediatric Cardiology: A Systematic Analysis. Pediatr Cardiol 2017; 38:719-733. [PMID: 28239752 DOI: 10.1007/s00246-017-1572-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2016] [Accepted: 01/19/2017] [Indexed: 11/28/2022]
Abstract
Evidence-based medicine has contributed substantially to the quality of medical care in pediatric and adult cardiology. However, our impression from the bedside is that a substantial number of Cochrane reviews generate inconclusive data that are of limited clinical benefit. We performed a systematic synopsis of Cochrane reviews published between 2001 and 2015 in the field of pediatric cardiology. Main outcome parameters were the number and percentage of conclusive, partly conclusive, and inconclusive reviews as well as their recommendations and their development over three a priori defined intervals. In total, 69 reviews were analyzed. Most of them examined preterm and term neonates (36.2%), whereas 33.3% included also non-pediatric patients. Leading topics were pharmacological issues (71.0%) followed by interventional (10.1%) and operative procedures (2.9%). The majority of reviews were inconclusive (42.9%), while 36.2% were conclusive and 21.7% partly conclusive. Although the number of published reviews increased during the three a priori defined time intervals, reviews with "no specific recommendations" remained stable while "recommendations in favor of an intervention" clearly increased. Main reasons for missing recommendations were insufficient data (n = 41) as well as an insufficient number of trials (n = 22) or poor study quality (n = 19). There is still need for high-quality research, which will likely yield a greater number of Cochrane reviews with conclusive results.
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Affiliation(s)
- Martin Poryo
- Department of Pediatric Cardiology, Saarland University Hospital, Kirrberger Straße, 66421, Homburg/saar, Germany.
| | | | - Hashim Abdul-Khaliq
- Department of Pediatric Cardiology, Saarland University Hospital, Kirrberger Straße, 66421, Homburg/saar, Germany
| | - Sascha Meyer
- Department of Pediatrics and Neonatology, Saarland University Hospital, Homburg/saar, Germany.,Department of Pediatric Neurology, Saarland University Hospital, Homburg/saar, Germany
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11
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Consider pharmacological treatment to close patent ductus arteriosus in preterm infants when the condition is haematologically significant. DRUGS & THERAPY PERSPECTIVES 2017. [DOI: 10.1007/s40267-016-0329-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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12
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Sivanandan S, Agarwal R. Pharmacological Closure of Patent Ductus Arteriosus: Selecting the Agent and Route of Administration. Paediatr Drugs 2016; 18:123-38. [PMID: 26951240 DOI: 10.1007/s40272-016-0165-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Opinions are divided regarding the management of a persistently patent ductus arteriosus (PDA). Some of the adverse effects associated with a large hemodynamically significant duct, including prolonged ventilation, pulmonary hemorrhage, bronchopulmonary dysplasia (BPD), necrotizing enterocolitis (NEC), intraventricular hemorrhage (IVH), and mortality, indicate that active management of infants with large ductal shunts may sometimes be necessary. Indomethacin and ibuprofen are the two US FDA-approved cyclooxygenase (COX) inhibitors used for the closure of a ductus in preterm babies. Both these drugs are effective in 70-80% of extremely low birthweight infants. Treatment with COX inhibitors may be associated with renal impairment, gastrointestinal hemorrhage, NEC, and spontaneous intestinal perforation when given concurrently with steroids, as well as changes in cerebrovascular auto-regulation. Ibuprofen appears to be a better choice for PDA closure, with a better side effect profile and efficacy that equals that of indomethacin. However, long-term outcome studies of ibuprofen are lacking, and prophylactic ibuprofen is ineffective in decreasing severe IVH. The choice of one drug over the other also depends on local availability of both drugs and the intravenous or enteral preparation. The oral preparation of ibuprofen appears as effective as the intravenous preparation. The use of paracetamol to close a hemodynamically significant PDA has increased in recent years. Paracetamol also decreases prostacyclin synthesis; however, unlike COX inhibitors, it does not have a peripheral vaso-constrictive effect and can be given to infants with contraindications to non-steroidal anti-inflammatory drugs. It appears to have similar efficacy based on limited data available from randomized trials. Until more data are available on efficacy, safety, and long-term outcomes, it cannot be recommended as the first choice.
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Affiliation(s)
- Sindhu Sivanandan
- Division of Neonatology, Department of Pediatrics (Newborn Health Knowledge Center (NHKC), ICMR Center for Advanced Research in Newborn Health and WHO Collaborating Centre for Newborn Training and Research, New Private Ward-1st Floor, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India
| | - Ramesh Agarwal
- Division of Neonatology, Department of Pediatrics (Newborn Health Knowledge Center (NHKC), ICMR Center for Advanced Research in Newborn Health and WHO Collaborating Centre for Newborn Training and Research, New Private Ward-1st Floor, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, 110029, India.
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AlFaleh K, Alluwaimi E, AlOsaimi A, Alrajebah S, AlOtaibi B, AlRasheed F, AlKharfi T, Paes B. A prospective study of maternal preference for indomethacin prophylaxis versus symptomatic treatment of a patent ductus arteriosus in preterm infants. BMC Pediatr 2015; 15:47. [PMID: 25895495 PMCID: PMC4414008 DOI: 10.1186/s12887-015-0353-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Accepted: 03/20/2015] [Indexed: 12/04/2022] Open
Abstract
Background The management of a patent ductus arteriosus in preterm infants continues to be debated among neonatologists due to the absence of concrete evidence that precisely weighs the long term outcomes of active, early intervention against a conservative approach. In the majority of institutions, parents are encouraged to play an active role in the complex, decision –making processes with regard to the care of their infants. The objective of this study is to elicit maternal preferences for indomethacin prophylaxis versus treatment of a patent ductus arteriosus (PDA) in extremely low birth weight (ELBW) infants, utilizing a decision aid instrument (DAI). Methods Healthy and high risk pregnant women at 23–28 weeks gestation, and mothers of admitted ELBW infants were enrolled. A computer based, validated DAI was utilized during interviews. The DAI first provides information about prematurity and concurrent morbidities with comprehensive facts of the pros and cons about prophylactic versus treatment options. It subsequently coaches participants how to select values and preferences based on their decisions. A 17-item questionnaire assessed and valued each short and long term morbidity of extreme prematurity and preferred choice for PDA management. Results Two hundred ninety nine subjects were enrolled; 75% were healthy women at 23–28 weeks gestation, 19% were high risk and 6% recently delivered an ELBW infant. Eighty-two percent preferred a prophylactic indomethacin strategy versus symptomatic treatment for the management of PDA. Across a spectrum of potential morbidities, the occurrence of severe intraventricular hemorrhage was viewed by mothers as the most un-wanted outcome irrespective of the two proposed options. Conclusions In contrast to neonatal practitioners, mothers who used this particular DAI strongly endorsed prophylactic indomethacin versus a treatment intervention for the management of PDA in preterm infants. Electronic supplementary material The online version of this article (doi:10.1186/s12887-015-0353-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Khalid AlFaleh
- Department of Pediatrics (Division of Neonatology), College of Medicine, King Saud University, Riyadh, Saudi Arabia.
| | - Eman Alluwaimi
- Department of Pediatrics (Division of Neonatology), College of Medicine, King Saud University, Riyadh, Saudi Arabia.
| | - Ahlam AlOsaimi
- Department of Pediatrics, King Fahad Medical City, Riyadh, Saudi Arabia.
| | - Sheikha Alrajebah
- Department of Pediatrics (Division of Neonatology), College of Medicine, King Saud University, Riyadh, Saudi Arabia.
| | - Bashayer AlOtaibi
- Department of Pediatrics (Division of Neonatology), College of Medicine, King Saud University, Riyadh, Saudi Arabia.
| | - Fatima AlRasheed
- Department of Pediatrics (Division of Neonatology), College of Medicine, King Saud University, Riyadh, Saudi Arabia.
| | - Turki AlKharfi
- Department of Pediatrics (Division of Neonatology), College of Medicine, King Saud University, Riyadh, Saudi Arabia.
| | - Bosco Paes
- Department of Pediatrics (Neonatal Division), McMaster University, Hamilton, ON, Canada.
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Nemri AMHA. Patent ductus arteriosus in preterm infant: Basic pathology and when to treat. Sudan J Paediatr 2014; 14:25-30. [PMID: 27493386 PMCID: PMC4949912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The incidence of patent ductus arteriosus (PDA) in premature neonates varies according to the gestational age and respiratory status. Failure of PDA closure in preterm infants with respiratory distress syndrome results in a left to right shunt across the duct which may lead to pulmonary congestion and deterioration in respiratory status. Although indomethacin and ibuprofen are the main stay of medical treatment, conservative approach by restricted fluid and applying continuous positive airway pressure (CPAP) may be effective in prevention of PDA without complication. The daily clinical round debate on how to diagnose, when, and how to treat PDA in preterm neonates will be discussed with details in this review.
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Affiliation(s)
- Abdulrahman M H Al Nemri
- Department of Pediatrics, College of Medicine, King Saud University Medical City (KSUMC), Riyadh, Saudi Arabia
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15
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Patent ductus arteriosus in preterm infants: do we have the right answers? BIOMED RESEARCH INTERNATIONAL 2013; 2013:676192. [PMID: 24455715 PMCID: PMC3885207 DOI: 10.1155/2013/676192] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2013] [Revised: 09/13/2013] [Accepted: 10/04/2013] [Indexed: 12/20/2022]
Abstract
Patent ductus arteriosus (PDA) is a common clinical condition in preterm infants. Preterm newborns with PDA are at greater risk for several morbidities, including higher rates of bronchopulmonary dysplasia (BPD), decreased perfusion of vital organs, and mortality. Therefore, cyclooxygenase (COX) inhibitors and surgical interventions for ligation of PDA are widely used. However, these interventions were reported to be associated with side effects. In the absence of clear restricted rules for application of these interventions, different strategies are adopted by neonatologists. Three different approaches have been investigated including prophylactic treatment shortly after birth irrespective of the state of PDA, presymptomatic treatment using echocardiography at variable postnatal ages to select infants for treatment prior to the duct becoming clinically significant, and symptomatic treatment once PDA becomes clinically apparent or hemodynamically significant. Future appropriately designed randomized controlled trials (RCTs) to refine selection of patients for medical and surgical treatments should be conducted. Waiting for new evidence, it seems wise to employ available clinical and echocardiographic parameters of a hemodynamically significant (HS) PDA to select patients who are candidates for medical treatment. Surgical ligation of PDA could be used as a back-up tool for those patients who failed medical treatment and continued to have hemodynamic compromise.
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16
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Mitra S, Rønnestad A, Holmstrøm H. Management of patent ductus arteriosus in preterm infants--where do we stand? CONGENIT HEART DIS 2013; 8:500-12. [PMID: 24127861 DOI: 10.1111/chd.12143] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/26/2013] [Indexed: 01/25/2023]
Abstract
Patent ductus arteriosus (PDA) in preterm infants is a controversial topic in the management of preterm neonates. There are no generally accepted guidelines for diagnosis, treatment, and follow-up of PDA, and few publications have covered the whole topic or have been conclusively summarized to give a proper direction for the treating physician. Major issues remain to be clarified, both with respect to diagnosis and treatment. The definition of hemodynamic significance varies because of different use of echocardiographic criteria and uncertainty about the role of biomarkers. The detailed risks and benefits of available treatment alternatives are still under investigation. There has been a general shift in the management of PDA in preterm neonates from the "aggressive approach" to a more "conservative approach," but the effects of this strategy on morbidity in a longer time perspective are not fully known. An individualized therapeutic strategy with special emphasis on identification of hemodynamically significance seems to be the way forward. In this review we put forward the scientific background in favor of a seemingly growing body of evidence against active treatment, but we raise caution against shying away from all forms of treatment or instituting them too late. Finally, we try to integrate the current knowledge into suggestions for the management of PDA in premature infants.
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Affiliation(s)
- Souvik Mitra
- Division of Neonatology, Department of Pediatrics, McMaster Children's Hospital, Hamilton, Ontario, Canada
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17
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Outcome of patent ductus arteriosus ligation in premature infants in the East of England: a prospective cohort study. Cardiol Young 2013; 23:711-6. [PMID: 23164413 DOI: 10.1017/s1047951112001795] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND Surgical ligation of patent ductus arteriosus is considered when medical treatment fails or is contraindicated. This study aims to determine the mortality and morbidity of preterm neonates referred for patent ductus arteriosus ligation. METHODS A prospective study was conducted in the East of England to follow the outcome of premature infants under 37 weeks’ gestation undergoing patent ductus arteriosus ligation. A standardised proforma was used to collect information before and after the procedure. RESULTS A total of 102 premature infants were recruited, and patent ductus arteriosus ligation was performed in 92. Surgical complications occurred in 8.7% (8/92), which included pneumothorax (5/8), recurrent laryngeal nerve palsy (2/8), and chylothorax (1/8). Morbidity outcome data were not available for all infants. The incidence of chronic lung disease was 88% (88/99); intraventricular haemorrhage was 49% (49/100); necrotising enterocolitis 39% (39/99), and retinopathy of prematurity 42% (41/97). The overall mortality rate in our study was 7.8% (8/102). Mortality rate in infants who had patent ductus arteriosus ligation was 4.3% (4/92). The 30-day survival rate after ligation was 99% (91/92). Beyond 30 days post-ligation, three infants died from other causes that were not directly related to surgery. CONCLUSION Patent ductus arteriosus ligation in premature infants is associated with low mortality and complication rates; however, there is a high incidence of neonatal morbidity. Surgical capacity for patent ductus arteriosus ligation needs to be carefully planned nationally as the duration of ‘‘waiting time’’ and transport to another surgical centre could adversely affect outcomes in this high-risk population.
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Clinical pharmacology of indomethacin in preterm infants: implications in patent ductus arteriosus closure. Paediatr Drugs 2013; 15:363-76. [PMID: 23754139 DOI: 10.1007/s40272-013-0031-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Indomethacin is a non-steroidal anti-inflammatory drug that is a potent inhibitor of prostaglandin E(2) synthesis. After birth, the ductus arteriosus closes spontaneously within 2-4 days in term infants. The major factor closing the ductus arteriosus is the tension of oxygen, which increases significantly after birth. Prostaglandin E(2) has the opposite effect to that of oxygen; it relaxes smooth muscle and tends to inhibit the closure of the ductus arteriosus. In preterm infants with respiratory distress syndrome, the ductus arteriosus fails to close (patent ductus arteriosus [PDA]) because the concentration of prostaglandin E2 is relatively high. PDA occurs in more than 70 % of neonates weighing less than 1,500 g at birth. The aim of this article was to review the published data on the clinical pharmacology of indomethacin in preterm infants in order to provide a critical analysis of the literature and a useful tool for physicians. The bibliographic search was performed electronically using the PubMed and EMBASE databases as search engines and February 2012 was the cutoff point. A remarkable interindividual variability was observed for the half-life (t(½)), clearance (CL), and volume of distribution (V(d)) of indomethacin. Prophylactic indomethacin consists of a continuous infusion of low levels of indomethacin and may be useful in preterm infants. Extremely preterm infants are less likely to respond to indomethacin. Infants with a postnatal age of 2 months do not respond to treatment with indomethacin. Indomethacin has several adverse effects, the most common of which is renal failure. An increase in serum creatinine of ≥0.5 % mg/dL after indomethacin was observed in about 10-15 % of the patients and creatinine returns to a normal level about 1 week after cessation of therapy. Indomethacin should be administered intravenously by syringe pump for at least 30 min to minimize adverse effects on cerebral, gastrointestinal, and renal blood flow velocities. A prolonged course of indomethacin appears to reduce the risk of severe intracranial hemorrhage and renal impairment in patients with PDA. In conclusion, indomethacin is a useful drug to treat PDA.
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Meißner U, Chakrabarty R, Topf HG, Rascher W, Schroth M. Improved closure of patent ductus arteriosus with high doses of ibuprofen. Pediatr Cardiol 2012; 33:586-90. [PMID: 22307401 DOI: 10.1007/s00246-012-0182-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2011] [Accepted: 11/17/2011] [Indexed: 11/26/2022]
Abstract
The patent ductus arteriosus (PDA) is associated with various complications of prematurity. Cyclooxygenase-inhibitors are the first-line intervention for closure of the PDA. However, the rates of PDA closure still are unsatisfactory. Therefore, an individual trial was performed by changing the strategy for treating neonates with ibuprofen to induce the closure of PDA. In a retrospective study, patients receiving 20, 10, and 10 mg/kg bodyweight ibuprofen (group 1) were compared by chart review with those receiving 10, 5, 5 mg/kg (group 2). The rate of PDA closure, the incidence of side effects related to the use of ibuprofen, and the need for surgical intervention for closure of the PDA were analyzed. A higher rate of closure after three doses in group 1 could be observed (60.9 vs 52.6%; p = 0.75), which was not significant but indicated a clear positive trend. If closure of the PDA was unsuccessful, intravenous ibuprofen was continued for an additional 2 days. After 5 days, 91.3% of PDA in group 1 was closed compared with 68.4% PDA in group 2. In summary, only 8.7% of the group 1 neonates needed surgical closure of PDA after insufficient medicamentous closure compared with 31.6% in group 2 (p = 0.25). Although not statistically significant, a clear positive trend for using the higher-dose medication can be seen. More work dealing with the limitations of a retrospective study must be done. Based on the data from this study, high-dose ibuprofen seems able to increase the rate of effective medicamentous PDA closure without any further unwanted side effects.
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Affiliation(s)
- Udo Meißner
- Department of Pediatrics, University of Erlangen-Nurnberg, Loschgestrasse 15, 91054 Erlangen, Germany
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Johnston PG, Gillam-Krakauer M, Fuller MP, Reese J. Evidence-based use of indomethacin and ibuprofen in the neonatal intensive care unit. Clin Perinatol 2012; 39:111-36. [PMID: 22341541 PMCID: PMC3598606 DOI: 10.1016/j.clp.2011.12.002] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Indomethacin and ibuprofen are potent inhibitors of prostaglandin synthesis. Neonates have been exposed to these compounds for more than 3 decades. Indomethacin is commonly used to prevent intraventricular hemorrhage (IVH), and both drugs are prescribed for the treatment or prevention of patent ductus arteriosus (PDA). This review examines the basis for indomethacin and ibuprofen use in the neonatal intensive care population. Despite the call for restrained use of each drug, the most immature infants are likely to need pharmacologic approaches to reduce high-grade IVH, avoid the need for PDA ligation, and preserve the opportunity for an optimal outcome.
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Affiliation(s)
- Palmer G. Johnston
- Neonatal-Perinatal Medicine, Division of Neonatology, Department of Pediatrics, Vanderbilt University Medical Center, 2200 Children’s Way, Doctor’s Office Tower 11111, Nashville, TN 37232-9544, USA
| | - Maria Gillam-Krakauer
- Neonatal-Perinatal Medicine, Division of Neonatology, Department of Pediatrics, Vanderbilt University Medical Center, 2200 Children’s Way, Doctor’s Office Tower 11111, Nashville, TN 37232-9544, USA
| | - M. Paige Fuller
- Department of Pharmacy, Monroe Carell Jr. Children’s Hospital at Vanderbilt, 2200 Children’s Way, Room 4508, Nashville, TN 37232, USA
| | - Jeff Reese
- Neonatal-Perinatal Medicine, Division of Neonatology, Department of Pediatrics, Vanderbilt University Medical Center, 2200 Children’s Way, Doctor’s Office Tower 11111, Nashville, TN 37232-9544, USA,Department of Cell and Developmental Biology, Vanderbilt University Medical Center, U-3218 MRB III Building, Nashville, TN 37232-8240, USA,Corresponding author. Department of Cell and Developmental Biology, Vanderbilt University Medical Center, U-3218 MRB III Building, Nashville, TN 37232-8240.,
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21
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Patent ductus arteriosus in infants <29 weeks gestation — outcomes and factors affecting closure. Indian Pediatr 2012; 49:615-20. [DOI: 10.1007/s13312-012-0132-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2011] [Accepted: 10/19/2011] [Indexed: 11/27/2022]
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Fanos V, Pusceddu M, Dessì A, Marcialis MA. Should we definitively abandon prophylaxis for patent ductus arteriosus in preterm new-borns? Clinics (Sao Paulo) 2011; 66:2141-9. [PMID: 22189742 PMCID: PMC3226612 DOI: 10.1590/s1807-59322011001200022] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2011] [Accepted: 08/12/2011] [Indexed: 12/30/2022] Open
Abstract
Although the prophylactic administration of indomethacin in extremely low-birth weight infants reduces the frequency of patent ductus arteriosus and severe intraventricular hemorrhage, it does not appear to provide any long-term benefit in terms of survival without neurosensory and cognitive outcomes. Considering the increased drug-induced reduction in renal, intestinal, and cerebral blood flow, the use of prophylaxis cannot be routinely recommended in preterm neonates. However, a better understanding of the genetic background of each infant may allow for individualized prophylaxis using NSAIDs and metabolomics.
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Affiliation(s)
- Vassilios Fanos
- Neonatal Intensive Care Unit, Puericulture Institute And Neonatal Section, AOU University of Cagliari, Italy
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23
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Fowlie PW, Davis PG, McGuire W. Prophylactic intravenous indomethacin for preventing mortality and morbidity in preterm infants. Cochrane Database Syst Rev 2010; 2010:CD000174. [PMID: 20614421 PMCID: PMC7045285 DOI: 10.1002/14651858.cd000174.pub2] [Citation(s) in RCA: 134] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
BACKGROUND Persistent patent ductus arteriosus (PDA) is associated with mortality and morbidity in preterm infants. Prostaglandin synthetase inhibitors such as indomethacin promote PDA closure but also have potential side effects. The effect of the prophylactic use of indomethacin, where infants who may not have gone on to develop a symptomatic PDA would be exposed to indomethacin, warrants particular scrutiny. OBJECTIVES To determine the effect of prophylactic indomethacin on mortality and morbidity in preterm infants. SEARCH STRATEGY The standard search strategy of the Cochrane Neonatal Review Group was used. This included searches of the Cochrane Central Register of Controlled Trials (CENTRAL, The Cochrane Library, Issue 5, 2010), MEDLINE, EMBASE and CINAHL (until April 2010), conference proceedings, and previous reviews. SELECTION CRITERIA Randomised or quasi-randomised controlled trials that compared prophylactic indomethacin versus placebo or no drug in preterm infants. DATA COLLECTION AND ANALYSIS The standard methods of the Cochrane Neonatal Review Group were used, with separate evaluation of trial quality and data extraction by two review authors. MAIN RESULTS Nineteen eligible trials in which 2872 infants participated were identified. Most participants were very low birth weight, but the largest single trial restricted participation to extremely low birth weight infants (N = 1202). The trials were generally of good quality.The incidence of symptomatic PDA [typical relative risk (RR) 0.44, 95% confidence interval (CI) 0.38 to 0.50] and PDA surgical ligation (typical RR 0.51, 95% CI 0.37,0.71) was significantly lower in treated infants. Prophylactic indomethacin also significantly reduced the incidence of severe intraventricular haemorrhage (typical RR 0.66, 95% CI 0.53 to 0.82). Meta-analyses found no evidence of an effect on mortality (typical RR 0.96, 95% CI 0.81 to 1.12) or on a composite of death or severe neurodevelopmental disability assessed at 18 to 36 months old (typical RR 1.02, 95% CI 0.90, 1.15). AUTHORS' CONCLUSIONS Prophylactic indomethacin has short-term benefits for preterm infants including a reduction in the incidence of symptomatic PDA, PDA surgical ligation, and severe intraventricular haemorrhage. However, there is no evidence of effect on mortality or neurodevelopment.
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Affiliation(s)
- Peter W Fowlie
- Ninewells Hospital and Medical SchoolWomen & Child HealthDundeeScotlandUKDD1 9SY
| | - Peter G Davis
- The Royal Women's HospitalDepartment of Newborn Research20 Flemington RdParkvilleVictoriaAustralia3052
| | - William McGuire
- Hull York Medical SchoolCentre for Reviews and DisseminationUniversity of YorkYorkY010 5DDUK
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Lin YC, Huang HR, Lien R, Yang PH, Su WJ, Chung HT, Chen TJ, Liu WH. Management of patent ductus arteriosus in term or near-term neonates with respiratory distress. Pediatr Neonatol 2010; 51:160-5. [PMID: 20675240 DOI: 10.1016/s1875-9572(10)60030-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/03/2009] [Revised: 09/01/2009] [Accepted: 09/25/2009] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Respiratory distress and patent ductus arteriosus (PDA) in neonates are mutually perpetuating. Contrary to the situation in premature infants, the recognition, clinical relevance and optimal management of PDA in full-term neonates are unclear. The present study aimed to identify PDA as a possible cause of respiratory distress in term and near-term neonates, and to examine the clinical responsiveness of PDA to different treatment modalities in mature-gestational-age neonates. METHODS Patients with gestational ages of over 34 weeks were included in this retrospective chart review; they had PDA as the sole recognizable cause of respiratory distress and were free of all other diseases. Clinical responsiveness to different regimens, including conservative treatment, drug therapy with preload reduction and inotropic agent with or without the addition of indomethacin, and surgical intervention were analyzed. RESULTS Forty-four neonates qualified for this study. Six received no treatment and their cardiorespiratory symptoms resolved within 1 week (regimen A). Symptoms in 11 neonates were relieved after use of diuretic and inotropic agents (regimen B). Twelve neonates became asymptomatic without further intervention after indomethacin treatment in addition to preload reduction and inotropes (regimen C). A total of 15 of the 44 infants underwent PDA ligation (regimen D) due to persistent heart failure following regimens B or C, but had speedy resolution of respiratory symptoms following surgery. There were significant differences in birth body weight and hemodynamic variation based on left atrium to aortic root dimensional ratio between the treatment (regimens B, C and D) and non-treatment (regimen A) groups (p < 0.05). CONCLUSION PDA plays an important role in prolonging respiratory distress in term or near-term neonates. Although most infants respond to noninvasive medical treatment, surgical ligation during the neonatal period is warranted in certain mature infants. Surgical treatment should be considered in patients with smaller birth body weights and those with increased left atrium to aortic root dimensional ratios.
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Affiliation(s)
- Yu-Chen Lin
- Department of Pediatrics, Chi Mei Medical Center, Liouying Campus, Tainan, Taiwan
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Neuroprotective effects vary across nonsteroidal antiinflammatory drugs in a mouse model of developing excitotoxic brain injury. Neuroscience 2010; 167:716-23. [PMID: 20188153 DOI: 10.1016/j.neuroscience.2010.02.042] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2009] [Revised: 01/26/2010] [Accepted: 02/18/2010] [Indexed: 11/23/2022]
Abstract
Glutamate excitotoxicity is among the main cellular mechanisms leading to perinatal insults in human newborns. We used intracerebral injection of the glutamatergic glutamate N-methyl-D-aspartate-receptor agonist ibotenate to produce excitotoxic lesions mimicking the acquired white matter lesions seen in human preterm infants. We evaluated whether nonsteroidal antiinflammatory drugs (NSAIDs) protected against glutamate excitotoxicity. Aspirin (0.01-100 microg/d), indomethacin (0.1-10 microg/d), paracetamol (10-100 microg/d), or NS-398 (12.5 microg/d) was given daily before ibotenate (P1 to P5) or after ibotenate (P5 to P9). Lesion size was measured on Cresyl Violet-stained brain sections collected on P10. None of the drugs tested alone or in combination increased lesion size. Pretreatment with low- or high-dose aspirin and post-treatment with paracetamol or NS-398 protected against white matter lesions, whereas cortical lesions were decreased by pretreatment with low- or high-dose aspirin or post-treatment with NS-398. The corticosteroid betamethasone (0.18 microg/d) was neuroprotective when given before or after ibotenate and this effect was reversed by concomitant aspirin therapy (10 microg/d). In conclusion, perinatal NSAID administration may have beneficial effects on brain injury if appropriately timed.
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Bratlid D, Farstad T. [Patent ductus arteriosus in premature infants]. TIDSSKRIFT FOR DEN NORSKE LEGEFORENING 2009; 129:1455-8. [PMID: 19690594 DOI: 10.4045/tidsskr.09.31363] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022] Open
Abstract
BACKGROUND Patent ductus arteriosus in premature infants has often been treated because of its association with worsening of pulmonary disease and complications such as bronchopulmonary dysplasia. This view has now been challenged. MATERIAL AND METHODS Relevant publications have been identified from review articles in international peer-reviewed journals. The articles have been retrieved through searches in the PubMed and Cochrane-databases. RESULTS Recent research has led to a new understanding of patent ductus arteriosus - a shift of paradigm has occurred. The condition implies that a shunt enables blood to flow from right to left in the first postnatal days (when pulmonary arterial pressure is high), and left to right in cases where significant pulmonary disease is present. The increased pulmonary blood flow improves oxygenation, and the condition should be considered as physiological in small premature infants. A patent ductus arteriosus does not worsen concomitant pulmonary disease or increase the risk of bronchopulmonary dysplasia, intraventricular hemorrhage, necrotising enterocolitis or other complications. INTERPRETATION Treatment of a patent ductus arteriosus with COX-inhibitors such as indomethacin and ibuprofen, increases the risk for bronchopulmonary dysplasia without reducing other complications or death. A large patent ductus arteriosus has significant hemodynamic effects and should be treated with fluid restriction, diuretics and inotropic drugs before closure is considered. Surgical closure of a patent ductus arteriosus is linked to neurosensory impairment in survivors.
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Affiliation(s)
- Dag Bratlid
- Barne- og ungdomsklinikken, St. Olavs hospital og Institutt for laboratoriemedisin, Det medisinske fakultet, Norges teknisk-naturvitenskapelige universitet, 7006 Trondheim, Norway.
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Chiruvolu A, Jaleel MA. Therapeutic management of patent ductus arteriosus. Early Hum Dev 2009; 85:151-5. [PMID: 19217726 DOI: 10.1016/j.earlhumdev.2008.12.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2008] [Accepted: 12/11/2008] [Indexed: 11/25/2022]
Abstract
Management of patent ductus arteriosus (PDA) in premature neonates has always been a challenge to the neonatologist and continues to be a controversial topic. Indications for treatment are not clear. Approximately 40% of ductus arteriosus close spontaneously even in extremely-low-birth-weight neonates. Prophylactic or early pre-symptomatic treatment may unnecessarily expose these babies, in whom the ductus might close spontaneously, to pharmacologic agents and their adverse effects. On the other hand, with advancing postnatal age, delaying treatment could potentially decrease successful medical closure thereby increasing the rate of surgical ligation and the complications associated with surgery. We tried to develop some clinical guidelines for management of PDA in premature neonates based on evidence, or lack thereof, and experience.
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Affiliation(s)
- Arpitha Chiruvolu
- Department of Pediatrics, Division of Neonatology, Baylor University Medical Center, Dallas, Texas 75246, USA.
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Noori S, McCoy M, Friedlich P, Bright B, Gottipati V, Seri I, Sekar K. Failure of ductus arteriosus closure is associated with increased mortality in preterm infants. Pediatrics 2009; 123:e138-44. [PMID: 19117835 DOI: 10.1542/peds.2008-2418] [Citation(s) in RCA: 244] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVE Because the standard of care has been to attempt to close the patent ductus arteriosus in preterm neonates, there is a paucity of information on the outcome of patients with a persistent patent ductus arteriosus. Our objective was to compare the mortality of preterm infants with and without a persistent patent ductus arteriosus. METHODS This was a single-center, retrospective study. Very preterm infants (birth weight < or = 1500 g and gestational age < or = 29 weeks) who survived beyond the first 3 postnatal days and did not undergo surgical ligation were included in the primary analysis. Mortality of neonates with a persistent and a closed patent ductus arteriosus was compared during the initial hospitalization by using the chi(2) test. Cox proportional hazard regression and logistic regression were used to take into account the time until death and assess the independent effect of each risk factor on mortality. We also performed 3 secondary analyses by excluding patients who died during the first 7 and 14 postnatal days and including patients who underwent surgical ligation by using different group assignments. A persistent patent ductus arteriosus was defined as a failure of either spontaneous or pharmacologic ductal closure during the initial hospitalization. RESULTS Patients with a persistent patent ductus arteriosus (n = 41) had lower birth weight and were less mature than those with a closed ductus (n = 260). Unadjusted mortality rate was higher in patients with a persistent (70.7%) than with a closed (11.2%) ductus. After adjustment for perinatal factors, level of maturity, disease severity, and morbid pathologies, the hazard for death in neonates with a persistent ductus was eightfold higher than in those with a closed ductus. Exclusion of patients who died during the first 2 weeks or inclusion of those who underwent ductal ligation did not change the findings. CONCLUSION Failure of ductal closure is associated with an increase in mortality in very preterm infants.
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Affiliation(s)
- Shahab Noori
- Department of Pediatrics, Neonatal-Perinatal Medicine, Children's Hospital, Oklahoma City, OK, USA.
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Patzer L. Nephrotoxicity as a cause of acute kidney injury in children. Pediatr Nephrol 2008; 23:2159-73. [PMID: 18228043 PMCID: PMC6904399 DOI: 10.1007/s00467-007-0721-x] [Citation(s) in RCA: 85] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/15/2007] [Revised: 10/02/2007] [Accepted: 10/04/2007] [Indexed: 11/25/2022]
Abstract
Many different drugs and agents may cause nephrotoxic acute kidney injury (AKI) in children. Predisposing factors such as age, pharmacogenetics, underlying disease, the dosage of the toxin, and concomitant medication determine and influence the severity of nephrotoxic insult. In childhood AKI, incidence, prevalence, and etiology are not well defined. Pediatric retrospective studies have reported incidences of AKI in pediatric intensive care units (PICU) of between 8% and 30%. It is widely recognized that neonates have higher rates of AKI, especially following cardiac surgery, severe asphyxia, or premature birth. The only two prospective studies in children found incidence rates of 4.5% and 2.5% of AKI in children admitted to PICU, respectively. Nephrotoxic drugs account for about 16% of all AKIs most commonly associated with AKI in older children and adolescents. Nonsteroidal anti-inflammatory drugs (NSAIDs), antibiotics, amphotericin B, antiviral agents, angiotensin-converting enzyme (ACE) inhibitors, calcineurin inhibitors, radiocontrast media, and cytostatics are the most important drugs to indicate AKI as significant risk factor in children. Direct pathophysiological mechanisms of nephrotoxicity include constriction of intrarenal vessels, acute tubular necrosis, acute interstitial nephritis, and-more infrequently-tubular obstruction. Furthermore, AKI may also be caused indirectly by rhabdomyolysis. Frequent therapeutic measures consist of avoiding dehydration and concomitant nephrotoxic medication, especially in children with preexisting impaired renal function.
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Affiliation(s)
- Ludwig Patzer
- Children's Hospital St. Elisabeth and St. Barbara, Mauerstrasse 5, 06110, Halle/S., Germany.
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Hammerman C. Indomethacin and retinopathy of prematurity: the hidden paradox. J Pediatr 2008; 153:587-8. [PMID: 18847626 DOI: 10.1016/j.jpeds.2008.05.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/10/2008] [Accepted: 05/02/2008] [Indexed: 11/19/2022]
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Herrera C, Holberton J, Davis P. Prolonged versus short course of indomethacin for the treatment of patent ductus arteriosus in preterm infants. Cochrane Database Syst Rev 2007; 2007:CD003480. [PMID: 17443527 PMCID: PMC8715534 DOI: 10.1002/14651858.cd003480.pub3] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Indomethacin is a prostaglandin inhibitor used to treat patent ductus arteriosus (PDA) in preterm infants. Although indomethacin produces ductal closure in the majority of cases, it is ineffective in up to 40% of patients. Furthermore, the ductus will re-open in up to 35% of infants who initially respond to the drug. Prolonging the course of indomethacin has the potential to achieve higher rates of ductal closure. OBJECTIVES To determine the effect of a prolonged course of indomethacin (compared to a short course) on the rate of treatment failure without unwanted side-effects in preterm infants with PDA. SEARCH STRATEGY The search included review of personal files, abstracts of conferences, and the following electronic databases: MEDLINE (1966 to December 2006), EMBASE (1974 to December 2006), and Oxford Database of Perinatal Trials, Cochrane Central Register of Controlled Trials (The Cochrane Library, Issue 4, 2006). No language restrictions were applied. SELECTION CRITERIA Randomized or quasi-randomized controlled trials including preterm infants with PDA, diagnosed on clinical and/or echocardiographic examination that evaluated indomethacin treatment by any route given as a long course (four or more doses) vs. a short course (three or fewer doses) were included in the review. Trials needed to report on at least one of the following outcomes: failure of PDA to close, need for re-treatment, PDA re-opening, PDA ligation, mortality, duration of assisted ventilation, chronic lung disease (CLD), duration of supplemental oxygen dependence, intraventricular hemorrhage (IVH) (all and severe), diminished urine output, increased serum creatinine, necrotizing enterocolitis (NEC), bleeding diathesis, retinopathy of prematurity (ROP), and duration of hospital stay. DATA COLLECTION AND ANALYSIS The three review authors independently abstracted data from each study. Relative risk (RR) and Risk Difference (RD) with 95% confidence intervals (CI) using the fixed effect model for meta-analysis are reported. When a statistically significant RD was found, the number needed to treat (NNT) or number needed to harm (NNH) was also calculated with 95% CIs. The I squared statistic was used to test for heterogeneity of results among included trials. MAIN RESULTS Five trials met inclusion criteria and included 431 infants. Prolonged indomethacin treatment when compared to the short course did not result in a statistically significant difference in PDA closure, re-treatment, re-opening, or ligation rates. The prolonged course was associated with an increased risk of NEC [typical RR 1.87 (95% CI 1.07, 3.27); typical RD 0.08 (95% CI 0.01, 0.15); NNH 13 (7, 100)] and a decreased incidence of renal function impairment, as evidenced by a lower proportion of infants having diminished urine output [typical RR 0.27 (95% CI 0.13, 0.6); typical RD -0.19 (95% CI -0.28, -0.09); NNT 5 (4, 11)] and increased serum creatinine level [typical RR 0.51 (95% CI 0.33, 0.77); typical RD -0.14 (95% CI -0.23, -0.06); NNT 7 (4, 16)]. AUTHORS' CONCLUSIONS Implications for practiceProlonged indomethacin course does not appear to have a significant effect on improving important outcomes, such as PDA treatment failure, CLD, IVH, or mortality. The reduction of transient renal impairment does not outweigh the increased risk of NEC associated with the prolonged course. Based on these results, a prolonged course of indomethacin cannot be recommended for the routine treatment of PDA in preterm infants. Implications for researchThere is a paucity of data on optimal dosing and duration of indomethacin therapy for the treatment of PDA, in particular for extremely low birth weight infants (ELBW) premature infants. It is likely that a single standard indomethacin regime is not the ideal for every premature infant. Therefore, individual patient response should be considered and evaluated, in particular in ELBW infants. Future randomized clinical trials should include this high risk population and investigate the effect of tailoring dose and duration of therapy to individual response in terms of echocardiographic findings and/or prostaglandin levels, focusing on clinically significant outcomes, including long-term neurodevelopmental outcomes. In addition, factors that may influence treatment effect, such as birth weight, gestational age, age at the time of randomization, total fluid intake, feeding practice, and severity of PDA, need to be taken into account when designing such studies.
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Affiliation(s)
- C Herrera
- University of Washington School of Medicine, Division of Neonatology/Department of Pediatrics, 1959 NE Pacific St., Box 356320, RR 542, Seattle, Washington 98195-3200, USA.
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Fowlie PW, Davis PG. Intravenous indomethacin for preventing mortality and morbidity in very low birth weight infants. Cochrane Database Syst Rev 2000:CD000174. [PMID: 12137607 DOI: 10.1002/14651858.cd000174] [Citation(s) in RCA: 119] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
BACKGROUND This section is under preparation and will be included in the next issue. OBJECTIVES Indomethacin is used to treat symptomatic patent ductus arteriosus and may prevent or limit intraventricular haemorrhage in the neonatal period. This review examines the effectiveness of prophylactic intravenous indomethacin in reducing the mortality and morbidity associated with these conditions in infants weighing less than 1750 grams at birth. SEARCH STRATEGY A literature search from January 1980 to October 1994 was made in three computerised data bases: Medline; Embase; and the Oxford Database of Perinatal Trials. The search was updated in February 1997. SELECTION CRITERIA Strict selection criteria were applied to clinical trials: the population had to be newborn infants of birth weight < 1751 grams; the intervention had to be prophylactic intravenous indomethacin; the trial had to be randomised and controlled; and at least one of several prespecified outcomes had to be reported in the results. DATA COLLECTION AND ANALYSIS The methodological quality of each study was assessed using explicit criteria. Data on relevant outcome measures were extracted on two separate occasions and, where appropriate, the results of individual trials were combined using meta-analysis techniques to provide a pooled estimate of effect. MAIN RESULTS There is a trend towards reduced neonatal mortality in infants receiving prophylactic indomethacin, pooled relative risk (RR) = 0. 85 [95% CI 0.66 to 1.09]. The incidence of symptomatic patent ductus arteriosus is significantly reduced in treated infants, pooled RR = 0.35 [0.26 to 0.47] but there is no evidence that treatment affects respiratory outcomes. Prophylactic indomethacin significantly reduces the incidence of Grade 3 and 4 intraventricular haemorrhage in treated infants, pooled RR = 0.60 [0.43 to 0.83]. There is no evidence to suggest prophylactic indomethacin is associated with any long term adverse effect although there is a trend in treated infants towards an increased incidence of necrotizing enterocolitis, and some evidence that treatment may transiently impair renal function. There is no evidence that haemostasis is disturbed. REVIEWER'S CONCLUSIONS Prophylactic treatment with indomethacin has a number of immediate benefits, in particular a reduction in symptomatic patent ductus arteriosus and severe intraventricular haemorrhage. There is no evidence at present of long-term harm. Further trials are needed to assess more precisely the effects, both beneficial and harmful, on short and long-term outcomes.
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Affiliation(s)
- P W Fowlie
- Neonatal Intensive Care Unit, Tayside University Hospitals NHS Trust, Ninewells Hospital and Medical School, Dundee, Tayside, UK, DD1 9SY.
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