| Autor: |
Susan Gunn, Stephanie Guilford, Lisa Sulkowski, Shannon E. G. Hamrick, David P. Carlton, Cathy Grisby, Sara B. De Mauro, Scott A. McDonald, Amir M. Khan, Christine A. Gleason, Jeffrey L. Segar, Sandra Grimes, William E. Truog, Lenora Jackson, Conra Backstrom Lacy, Cheri Gauldin, Kimberley A. Fisher, Carmen Garcia, Jacky R. Walker, Nancy S. Newman, Brenda B. Poindexter, Nirupama Laroia, Monica V. Collins, Jonathan M. Klein, Ellen C. Hale, Jeffrey R. Parker, Emilee Little, Tracy L. Nolen, Carol K. Redmond, Sandra Sundquist Beauman, Namasivayam Ambalavanan, Toni Mancini, Richard A. Polin, Aasma S. Chaudhary, Janice Bernhardt, Athina Pappas, Alexis S. Davis, Emma Ramon, Kathleen Weingarden, Laura Sumner, Edward F. Bell, Edward G. Shepherd, Karen J. Johnson, Beena G. Sood, Holly I.M. Wadkins, Robert D. Roghair, Patrick J. Conway, Julie Arldt-McAlister, Mary E. Johnson, Kevin Dysart, Myra H. Wyckoff, Lina F. Chalak, Ann Marie Scorsone, Donia B. Campbell, Rebecca Bara, Howard W. Kilbride, Anne Marie Reynolds, Dennis Wallace, Soraya Abbasi, Satyanarayana Lakshminrusimha, Carl L. Bose, Jon E. Tyson, Kathy Johnson, Ronnie Guillet, Robert T. Burke, Sharon L. Wright, Jeanette O'Donnell Auman, Teresa Chanlaw, Glenda K. Rabe, Suhas G. Kallapur, Ashley Williams, Gail E. Besner, Elisa Vierira, Stephanie Wilson Archer, Waldemar A. Carlo, Greg Muthig, Leslie T. McKinley, Sandra Wuertz, Shirley S. Cosby, Kristin Kirker, Melinda S. Proud, Melinda Caskey, Angelita M. Hensman, Kimberly Hayes-Hart, Karen Martin, Claudia Pedroza, Eugenia K. Pallotto, Carolyn M. Petrie Huitema, Lauritz R. Meyer, Jane E. Brumbaugh, Patricia Luzader, Jamie E. Newman, Georgia E. McDavid, Joanne Finkle, Meena Garg, Carl T. D'Angio, Vipinchandra Bhavsar, Krisa P. Van Meurs, Anne Holmes, Sudarshan R. Jadcherla, Ross Sommers, John D.E. Barks, Rosemary D. Higgins, Traci E Clemons, Leslie Dawn Wilson, Michael G. Sacilowski, Karen A. Wynn, Martin Keszler, Kristi L. Watterberg, Nicole Walker, Christine A. Fortney, Stephanie A. Wiggins, Cary R. Murphy, Marian Willinger, Michael S. Caplan, Betty R. Vohr, Rachel Geller, Ronald N. Goldberg, Margaret M. Crawford, Lucy Smiley, Steven J. Weiner, Dara M. Cucinotta, Barbara Schmidt, Mary E. D'Alton, Tarah T. Colaizy, John M. Dagle, Robin K. Ohls, Gregory M Sokol, Yvonne Loggins, Katrina Burson, Luc P. Brion, Kathleen A. Kennedy, Pablo J. Sánchez, Abbot R. Laptook, Ronald J. Wong, Roy J. Heyne, Anna Maria Hibbs, Haresh Kirpalani, Andrea Halbrook, Carol Kibler, Seetha Shankaran, Patti L. Pierce Tate, Carol H. Hartenberger, Steven J. McElroy, Dan L. Ellsbury, Diana M. Vasil, Teresa L. Gratton, Kurt Schibler, M. Bethany Ball, Michele C. Walsh, Nehal A. Parikh, Maria Batts, Abhik Das, Richard A. Ehrenkranz, Dianne E. Herron, Birju A. Shah, Marian M. Adams, Jenna Gabrio, Jennifer Jennings, Cindy Clark, Barbara J. Stoll, Robert J. Boyle, Matthew M. Laughon, Marie Gantz, Lilia C. De Jesus, Julie B. Lindower, U. Devaskar, Shawna Rodgers, Estelle E. Fischer, Kristin M. Zaterka-Baxter, Mary Christensen, David K. Stevenson, Lijun Chen, Michael G. Ross, Girija Natarajan, Nicholas Guerina, Barbara D. Alexander |
| Rok vydání: |
2014 |
| Předmět: |
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| Zdroj: |
JAMA, vol 312, iss 24 |
| ISSN: |
1538-3598 |
| Popis: |
Importance Hypothermia at 33.5°C for 72 hours for neonatal hypoxic ischemic encephalopathy reduces death or disability to 44% to 55%; longer cooling and deeper cooling are neuroprotective in animal models. Objective To determine if longer duration cooling (120 hours), deeper cooling (32.0°C), or both are superior to cooling at 33.5°C for 72 hours in neonates who are full-term with moderate or severe hypoxic ischemic encephalopathy. Design, Setting, and Participants A randomized, 2 × 2 factorial design clinical trial performed in 18 US centers in the Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) Neonatal Research Network between October 2010 and November 2013. Interventions Neonates were assigned to 4 hypothermia groups; 33.5°C for 72 hours, 32.0°C for 72 hours, 33.5°C for 120 hours, and 32.0°C for 120 hours. Main Outcomes and Measures The primary outcome of death or disability at 18 to 22 months is ongoing. The independent data and safety monitoring committee paused the trial to evaluate safety (cardiac arrhythmia, persistent acidosis, major vessel thrombosis and bleeding, and death in the neonatal intensive care unit [NICU]) after the first 50 neonates were enrolled, then after every subsequent 25 neonates. The trial was closed for emerging safety profile and futility analysis after the eighth review with 364 neonates enrolled (of 726 planned). This report focuses on safety and NICU deaths by marginal comparisons of 72 hours’ vs 120 hours’ duration and 33.5°C depth vs 32.0°C depth (predefined secondary outcomes). Results The NICU death rates were 7 of 95 neonates (7%) for the 33.5°C for 72 hours group, 13 of 90 neonates (14%) for the 32.0°C for 72 hours group, 15 of 96 neonates (16%) for the 33.5°C for 120 hours group, and 14 of 83 neonates (17%) for the 32.0°C for 120 hours group. The adjusted risk ratio (RR) for NICU deaths for the 120 hours group vs 72 hours group was 1.37 (95% CI, 0.92-2.04) and for the 32.0°C group vs 33.5°C group was 1.24 (95% CI, 0.69-2.25). Safety outcomes were similar between the 120 hours group vs 72 hours group and the 32.0°C group vs 33.5°C group, except major bleeding occurred among 1% in the 120 hours group vs 3% in the 72 hours group (RR, 0.25 [95% CI, 0.07-0.91]). Futility analysis determined that the probability of detecting a statistically significant benefit for longer cooling, deeper cooling, or both for NICU death was less than 2%. Conclusions and Relevance Among neonates who were full-term with moderate or severe hypoxic ischemic encephalopathy, longer cooling, deeper cooling, or both compared with hypothermia at 33.5°C for 72 hours did not reduce NICU death. These results have implications for patient care and design of future trials. Trial Registration clinicaltrials.gov Identifier:NCT01192776 |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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