Browsing by Author "Yehya, Nadir"

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    Early Use of Adjunctive Therapies for Pediatric Acute Respiratory Distress Syndrome: A PARDIE Study
    (American Thoracic Society, 2020-06) Rowan, Courtney M.; Klein, Margaret J.; Hsing, Deyin Doreen; Dahmer, Mary K.; Spinella, Philip C.; Emeriaud, Guillaume; Hassinger, Amanda B.; Piñeres-Olave, Byron E.; Flori, Heidi R.; Haileselassie, Bereketeab; Lopez-Fernandez, Yolanda M.; Chima, Ranjit S.; Shein, Steven L.; Maddux, Aline B.; Lillie, Jon; Izquierdo, Ledys; Kneyber, Martin C.J.; Smith, Lincoln S.; Khemani, Robinder G.; Thomas, Neal J.; Yehya, Nadir; Pediatrics, School of Medicine
    Rationale: Few data exist to guide early adjunctive therapy use in pediatric acute respiratory distress syndrome (PARDS).Objectives: To describe contemporary use of adjunctive therapies for early PARDS as a framework for future investigations.Methods: This was a preplanned substudy of a prospective, international, cross-sectional observational study of children with PARDS from 100 centers over 10 study weeks.Measurements and Main Results: We investigated six adjunctive therapies for PARDS: continuous neuromuscular blockade, corticosteroids, inhaled nitric oxide (iNO), prone positioning, high-frequency oscillatory ventilation (HFOV), and extracorporeal membrane oxygenation. Almost half (45%) of children with PARDS received at least one therapy. Variability was noted in the median starting oxygenation index of each therapy; corticosteroids started at the lowest oxygenation index (13.0; interquartile range, 7.6-22.0) and HFOV at the highest (25.7; interquartile range, 16.7-37.3). Continuous neuromuscular blockade was the most common, used in 31%, followed by iNO (13%), corticosteroids (10%), prone positioning (10%), HFOV (9%), and extracorporeal membrane oxygenation (3%). Steroids, iNO, and HFOV were associated with comorbidities. Prone positioning and HFOV were more common in middle-income countries and less frequently used in North America. The use of multiple ancillary therapies increased over the first 3 days of PARDS, but there was not an easily identifiable pattern of combination or order of use.Conclusions: The contemporary description of prevalence, combinations of therapies, and oxygenation threshold for which the therapies are applied is important for design of future studies. Region of the world, income, and comorbidities influence adjunctive therapy use and are important variables to include in PARDS investigations.
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    Executive Summary of the Second International Guidelines for the Diagnosis and Management of Pediatric Acute Respiratory Distress Syndrome (PALICC-2)
    (Wolters Kluwer, 2023) Emeriaud, Guillaume; López-Fernández, Yolanda M.; Iyer, Narayan Prabhu; Bembea, Melania M.; Agulnik, Asya; Barbaro, Ryan P.; Baudin, Florent; Bhalla, Anoopindar; de Carvalho, Werther Brunow; Carroll, Christopher L.; Cheifetz, Ira M.; Chisti, Mohammod J.; Cruces, Pablo; Curley, Martha A. Q.; Dahmer, Mary K.; Dalton, Heidi J.; Erickson, Simon J.; Essouri, Sandrine; Fernández, Analía; Flori, Heidi R.; Grunwell, Jocelyn R.; Jouvet, Philippe; Killien, Elizabeth Y.; Kneyber, Martin C. J.; Kudchadkar, Sapna R.; Korang, Steven Kwasi; Lee, Jan Hau; Macrae, Duncan J.; Maddux, Aline; Alapont, Vicent Modesto I.; Morrow, Brenda M.; Nadkarni, Vinay M.; Napolitano, Natalie; Newth, Christopher J. L.; Pons-Odena, Martí; Quasney, Michael W.; Rajapreyar, Prakadeshwari; Rambaud, Jerome; Randolph, Adrienne G.; Rimensberger, Peter; Rowan, Courtney M.; Sanchez-Pinto, L. Nelson; Sapru, Anil; Sauthier, Michael; Shein, Steve L.; Smith, Lincoln S.; Steffen, Katerine; Takeuchi, Muneyuki; Thomas, Neal J.; Tse, Sze Man; Valentine, Stacey; Ward, Shan; Watson, R. Scott; Yehya, Nadir; Zimmerman, Jerry J.; Khemani, Robinder G.; Pediatrics, School of Medicine
    Objectives: We sought to update our 2015 work in the Second Pediatric Acute Lung Injury Consensus Conference (PALICC-2) guidelines for the diagnosis and management of pediatric acute respiratory distress syndrome (PARDS), considering new evidence and topic areas that were not previously addressed. Design: International consensus conference series involving 52 multidisciplinary international content experts in PARDS and four methodology experts from 15 countries, using consensus conference methodology, and implementation science. Setting: Not applicable. Patients: Patients with or at risk for PARDS. Interventions: None. Measurements and main results: Eleven subgroups conducted systematic or scoping reviews addressing 11 topic areas: 1) definition, incidence, and epidemiology; 2) pathobiology, severity, and risk stratification; 3) ventilatory support; 4) pulmonary-specific ancillary treatment; 5) nonpulmonary treatment; 6) monitoring; 7) noninvasive respiratory support; 8) extracorporeal support; 9) morbidity and long-term outcomes; 10) clinical informatics and data science; and 11) resource-limited settings. The search included MEDLINE, EMBASE, and CINAHL Complete (EBSCOhost) and was updated in March 2022. Grading of Recommendations, Assessment, Development, and Evaluation methodology was used to summarize evidence and develop the recommendations, which were discussed and voted on by all PALICC-2 experts. There were 146 recommendations and statements, including: 34 recommendations for clinical practice; 112 consensus-based statements with 18 on PARDS definition, 55 on good practice, seven on policy, and 32 on research. All recommendations and statements had agreement greater than 80%. Conclusions: PALICC-2 recommendations and consensus-based statements should facilitate the implementation and adherence to the best clinical practice in patients with PARDS. These results will also inform the development of future programs of research that are crucially needed to provide stronger evidence to guide the pediatric critical care teams managing these patients.
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    Mechanical power in pediatric acute respiratory distress syndrome: a PARDIE study
    (Springer Nature, 2022-01-03) Bhalla, Anoopindar K.; Klein, Margaret J.; Alapont, Vicent Modesto I.; Emeriaud, Guillaume; Kneyber, Martin C. J.; Medina, Alberto; Cruces, Pablo; Diaz, Franco; Takeuchi, Muneyuki; Maddux, Aline B.; Mourani, Peter M.; Camilo, Cristina; White, Benjamin R.; Yehya, Nadir; Pappachan, John; Di Nardo, Matteo; Shein, Steven; Newth, Christopher; Khemani, Robinder; Pediatric Acute Lung Injury and Sepsis Investigators (PALISI) Network; Pediatrics, School of Medicine
    Background: Mechanical power is a composite variable for energy transmitted to the respiratory system over time that may better capture risk for ventilator-induced lung injury than individual ventilator management components. We sought to evaluate if mechanical ventilation management with a high mechanical power is associated with fewer ventilator-free days (VFD) in children with pediatric acute respiratory distress syndrome (PARDS). Methods: Retrospective analysis of a prospective observational international cohort study. Results: There were 306 children from 55 pediatric intensive care units included. High mechanical power was associated with younger age, higher oxygenation index, a comorbid condition of bronchopulmonary dysplasia, higher tidal volume, higher delta pressure (peak inspiratory pressure-positive end-expiratory pressure), and higher respiratory rate. Higher mechanical power was associated with fewer 28-day VFD after controlling for confounding variables (per 0.1 J·min-1·Kg-1 Subdistribution Hazard Ratio (SHR) 0.93 (0.87, 0.98), p = 0.013). Higher mechanical power was not associated with higher intensive care unit mortality in multivariable analysis in the entire cohort (per 0.1 J·min-1·Kg-1 OR 1.12 [0.94, 1.32], p = 0.20). But was associated with higher mortality when excluding children who died due to neurologic reasons (per 0.1 J·min-1·Kg-1 OR 1.22 [1.01, 1.46], p = 0.036). In subgroup analyses by age, the association between higher mechanical power and fewer 28-day VFD remained only in children < 2-years-old (per 0.1 J·min-1·Kg-1 SHR 0.89 (0.82, 0.96), p = 0.005). Younger children were managed with lower tidal volume, higher delta pressure, higher respiratory rate, lower positive end-expiratory pressure, and higher PCO2 than older children. No individual ventilator management component mediated the effect of mechanical power on 28-day VFD. Conclusions: Higher mechanical power is associated with fewer 28-day VFDs in children with PARDS. This association is strongest in children < 2-years-old in whom there are notable differences in mechanical ventilation management. While further validation is needed, these data highlight that ventilator management is associated with outcome in children with PARDS, and there may be subgroups of children with higher potential benefit from strategies to improve lung-protective ventilation. Take home message: Higher mechanical power is associated with fewer 28-day ventilator-free days in children with pediatric acute respiratory distress syndrome. This association is strongest in children <2-years-old in whom there are notable differences in mechanical ventilation management.
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    Pediatric Organ Dysfunction Information Update Mandate (PODIUM) Contemporary Organ Dysfunction Criteria: Executive Summary
    (American Academy of Pediatrics, 2022) Bembea, Melania M.; Agus, Michael; Akcan-Arikan, Ayse; Alexander, Peta; Basu, Rajit; Bennett, Tellen D.; Bohn, Desmond; Brandão, Leonardo R.; Brown, Ann-Marie; Carcillo, Joseph A.; Checchia, Paul; Cholette, Jill; Cheifetz, Ira M.; Cornell, Timothy; Doctor, Allan; Eckerle, Michelle; Erickson, Simon; Farris, Reid W.D.; Faustino, E. Vincent S.; Fitzgerald, Julie C.; Fuhrman, Dana Y.; Giuliano, John S.; Guilliams, Kristin; Gaies, Michael; Gorga, Stephen M.; Hall, Mark; Hanson, Sheila J.; Hartman, Mary; Hassinger, Amanda B.; Irving, Sharon Y.; Jeffries, Howard; Jouvet, Philippe; Kannan, Sujatha; Karam, Oliver; Khemani, Robinder G.; Kissoon, Niranjan; Lacroix, Jacques; Laussen, Peter; Leclerc, Francis; Lee, Jan Hau; Leteurtre, Stephane; Lobner, Katie; McKiernan, Patrick J.; Menon, Kusum; Monagle, Paul; Muszynski, Jennifer A.; Odetola, Folafoluwa; Parker, Robert; Pathan, Nazima; Pierce, Richard W.; Pineda, Jose; Prince, Jose M.; Robinson, Karen A.; Rowan, Courtney M.; Ryerson, Lindsay M.; Sanchez-Pinto, L. Nelson; Schlapbach, Luregn J.; Selewski, David T.; Shekerdemian, Lara S.; Simon, Dennis; Smith, Lincoln S.; Squires, James E.; Squires, Robert H.; Sutherland, Scott M.; Ouellette, Yves; Spaeder, Michael C.; Srinivasan, Vijay; Steiner, Marie E.; Tasker, Robert C.; Thiagarajan, Ravi; Thomas, Neal; Tissieres, Pierre; Traube, Chani; Tucci, Marisa; Typpo, Katri V.; Wainwright, Mark S.; Ward, Shan L.; Watson, R. Scott; Weiss, Scott; Whitney, Jane; Willson, Doug; Wynn, James L.; Yehya, Nadir; Zimmerman, Jerry J.; Pediatrics, School of Medicine
    Prior criteria for organ dysfunction in critically ill children were based mainly on expert opinion. We convened the Pediatric Organ Dysfunction Information Update Mandate (PODIUM) expert panel to summarize data characterizing single and multiple organ dysfunction and to derive contemporary criteria for pediatric organ dysfunction. The panel was composed of 88 members representing 47 institutions and 7 countries. We conducted systematic reviews of the literature to derive evidence-based criteria for single organ dysfunction for neurologic, cardiovascular, respiratory, gastrointestinal, acute liver, renal, hematologic, coagulation, endocrine, endothelial, and immune system dysfunction. We searched PubMed and Embase from January 1992 to January 2020. Study identification was accomplished using a combination of medical subject headings terms and keywords related to concepts of pediatric organ dysfunction. Electronic searches were performed by medical librarians. Studies were eligible for inclusion if the authors reported original data collected in critically ill children; evaluated performance characteristics of scoring tools or clinical assessments for organ dysfunction; and assessed a patient-centered, clinically meaningful outcome. Data were abstracted from each included study into an electronic data extraction form. Risk of bias was assessed using the Quality in Prognosis Studies tool. Consensus was achieved for a final set of 43 criteria for pediatric organ dysfunction through iterative voting and discussion. Although the PODIUM criteria for organ dysfunction were limited by available evidence and will require validation, they provide a contemporary foundation for researchers to identify and study single and multiple organ dysfunction in critically ill children.
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    Peri-intubation adverse events in the critically ill child after hematopoietic cell transplant
    (Wolters Kluwer, 2023) Lenz, Kyle B.; Nishisaki, Akira; Lindell, Robert B.; Yehya, Nadir; Laverriere, Elizabeth K.; Bruins, Benjamin B.; Napolitano, Natalie; Traynor, Danielle M.; Rowan, Courtney M.; Fitzgerald, Julie C.; Pediatrics, School of Medicine
    Objectives: Mechanically ventilated children post-hematopoietic cell transplant (HCT) have increased morbidity and mortality compared with other mechanically ventilated critically ill children. Tracheal intubation-associated adverse events (TIAEs) and peri-intubation hypoxemia universally portend worse outcomes. We investigated whether adverse peri-intubation associated events occur at increased frequency in patients with HCT compared with non-HCT oncologic or other PICU patients and therefore might contribute to increased mortality. Design: Retrospective cohort between 2014 and 2019. Setting: Single-center academic noncardiac PICU. Patients: Critically ill children who underwent tracheal intubation (TI). Interventions: None. Measurements and main results: Data from the local airway management quality improvement databases and Virtual Pediatric Systems were merged. These data were supplemented with a retrospective chart review for HCT-related data, including HCT indication, transplant-related comorbidity status, and patient condition at the time of TI procedure. The primary outcome was defined as the composite of hemodynamic TIAE (hypo/hypertension, arrhythmia, cardiac arrest) and/or peri-intubation hypoxemia (oxygen saturation < 80%) events. One thousand nine hundred thirty-one encounters underwent TI, of which 92 (4.8%) were post-HCT, while 319 (16.5%) had history of malignancy without HCT, and 1,520 (78.7%) had neither HCT nor malignancy. Children post-HCT were older more often had respiratory failure as an indication for intubation, use of catecholamine infusions peri-intubation, and use of noninvasive ventilation prior to intubation. Hemodynamic TIAE or peri-intubation hypoxemia were not different across three groups (HCT 16%, non-HCT with malignancy 10%, other 15). After adjusting for age, difficult airway feature, provider type, device, apneic oxygenation use, and indication for intubation, we did not identify an association between HCT status and the adverse TI outcome (odds ratio, 1.32 for HCT status vs other; 95% CI, 0.72-2.41; p = 0.37). Conclusions: In this single-center study, we did not identify an association between HCT status and hemodynamic TIAE or peri-intubation hypoxemia during TI.
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    Primary Graft Dysfunction Grade 3 following Pediatric Lung Transplantation is Associated with Chronic Lung Allograft Dysfunction
    (Elsevier, 2023) Wong, Wai; Johnson, Brandy; Cheng, Pi Chun; Josephson, Maureen B.; Maeda, Katsuhide; Berg, Robert A.; Kawut, Steven M.; Harhay, Michael O.; Goldfarb, Samuel B.; Yehya, Nadir; Himebauch, Adam S.; Pediatrics, School of Medicine
    Background: Severe primary graft dysfunction (PGD) is associated with the development of bronchiolitis obliterans syndrome (BOS), the most common form of chronic lung allograft dysfunction (CLAD), in adults. However, PGD associations with long-term outcomes following pediatric lung transplantation are unknown. We hypothesized that PGD grade 3 (PGD 3) at 48- or 72-hours would be associated with shorter CLAD-free survival following pediatric lung transplantation. Methods: This was a single center retrospective cohort study of patients ≤ 21 years of age who underwent bilateral lung transplantation between 2005 and 2019 with ≥ 1 year of follow-up. PGD and CLAD were defined by published criteria. We evaluated the association of PGD 3 at 48- or 72-hours with CLAD-free survival by using time-to-event analyses. Results: Fifty-one patients were included (median age 12.7 years; 51% female). The most common transplant indications were cystic fibrosis (29%) and pulmonary hypertension (20%). Seventeen patients (33%) had PGD 3 at either 48- or 72-hours. In unadjusted analysis, PGD 3 was associated with an increased risk of CLAD or mortality (HR 2.10, 95% CI 1.01-4.37, p=0.047). This association remained when adjusting individually for multiple potential confounders. There was evidence of effect modification by sex (interaction p = 0.055) with the association of PGD 3 and shorter CLAD-free survival driven predominantly by males (HR 4.73, 95% CI 1.44-15.6) rather than females (HR 1.23, 95% CI 0.47-3.20). Conclusions: PGD 3 at 48- or 72-hours following pediatric lung transplantation was associated with shorter CLAD-free survival. Sex may be a modifier of this association.