Physiological Disturbances Associated With Neonatal Intraventricular Hemorrhage
NCT ID: NCT00665769
Last Updated: 2022-04-05
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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TERMINATED
NA
103 participants
INTERVENTIONAL
2008-06-30
2015-11-30
Brief Summary
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1. Since most of these infants require ventilators (respirators) to survive, we will investigate how 2 different methods of ventilation affect brain injury. We believe that a new method of ventilation, allowing normal carbon dioxide levels, will normalize brain blood flow and lead to less bleeding in the brain.
2. We will also examine how treatment for low blood pressure in these infants may be associated with brain injury. We believe that most very premature infants with low blood pressure actually do worse if they are treated. We think that by allowing the infants to normalize blood pressure on their own will allow them to stabilize blood flow to the brain leading to less intraventricular hemorrhage.
3. In 10 premature infants with severe brain bleeding, we have developed a simple technique to identify intraventricular hemorrhage before it happens. Apparently, the heart rate of infants who eventually develop severe intraventricular hemorrhage is less variable than infants who do not develop this. We plan to test this method in a large group of infants, to be able to predict which infants are at highest risk of developing intraventricular hemorrhage and who could most benefit from interventions that would reduce disturbances of brain blood flow.
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Detailed Description
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Conditions
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
NONE
Study Groups
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Hypercapnia
Hypercapnic ventilation. The goal will be to maintain transcutaneous CO2 55 mm Hg (50-60 mm Hg) during the first week of life, or until extubation. A written, laminated hypercapnic ventilator algorithm will be placed at the bedside.
Hypercapnia
transcutaenous CO2 50-60 mm Hg
Normocapnia
Normocapnic ventilation. The goal will be to maintain transcutaenous CO2 40 mm Hg (35-45 mm Hg) during the first week of life, or until extubation. A written, laminated normocapnic ventilator algorithm will be placed at the bedside.
Normocapnia
transcutaneous CO2 35-45 mm Hg
Interventions
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Hypercapnia
transcutaenous CO2 50-60 mm Hg
Normocapnia
transcutaneous CO2 35-45 mm Hg
Other Intervention Names
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Eligibility Criteria
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Inclusion Criteria
* 23 to 30 weeks' gestation
* umbilical arterial catheter placed during newborn resuscitation
Exclusion Criteria
* presence of central nervous system malformation
* infants with hydrops fetalis
* infants in extremis
* infants with early (\<3 hour of age) intraventricular hemorrhage
1 Minute
7 Days
ALL
No
Sponsors
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National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Baylor College of Medicine
OTHER
Responsible Party
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Christopher J. Rhee, MD, MS
Professor of Pediatrics and Obstetrics and Gynecology
Principal Investigators
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Jeffrey R. Kaiser, MD, MA
Role: PRINCIPAL_INVESTIGATOR
Baylor College of Medicine
Locations
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Texas Children's Hospital
Houston, Texas, United States
Countries
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References
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Hall RW, Kaiser JR. Hypotension and brain injury in premature infants. Pediatrics. 2008 Mar;121(3):654; author reply 654-5. doi: 10.1542/peds.2007-3602. No abstract available.
Kaiser JR, Gauss CH, Williams DK. Tracheal suctioning is associated with prolonged disturbances of cerebral hemodynamics in very low birth weight infants. J Perinatol. 2008 Jan;28(1):34-41. doi: 10.1038/sj.jp.7211848. Epub 2007 Oct 25.
Kaiser JR. Both extremes of arterial carbon dioxide pressure and the magnitude of fluctuations in arterial carbon dioxide pressure are associated with severe intraventricular hemorrhage in preterm infants. Pediatrics. 2007 May;119(5):1039; author reply 1039-40. doi: 10.1542/peds.2007-0353. No abstract available.
Kaiser JR, Gauss CH, Pont MM, Williams DK. Hypercapnia during the first 3 days of life is associated with severe intraventricular hemorrhage in very low birth weight infants. J Perinatol. 2006 May;26(5):279-85. doi: 10.1038/sj.jp.7211492.
Kaiser JR, Gauss CH, Williams DK. The effects of hypercapnia on cerebral autoregulation in ventilated very low birth weight infants. Pediatr Res. 2005 Nov;58(5):931-5. doi: 10.1203/01.pdr.0000182180.80645.0c.
Kaiser JR, Gauss CH, Williams DK. Surfactant administration acutely affects cerebral and systemic hemodynamics and gas exchange in very-low-birth-weight infants. J Pediatr. 2004 Jun;144(6):809-14. doi: 10.1016/j.jpeds.2004.03.022.
Tuzcu V, Nas S, Borklu T, Ugur A. Decrease in the heart rate complexity prior to the onset of atrial fibrillation. Europace. 2006 Jun;8(6):398-402. doi: 10.1093/europace/eul031. Epub 2006 May 10.
Rushing S, Ment LR. Preterm birth: a cost benefit analysis. Semin Perinatol. 2004 Dec;28(6):444-50. doi: 10.1053/j.semperi.2004.10.007.
van Bel F, de Winter PJ, Wijnands HB, van de Bor M, Egberts J. Cerebral and aortic blood flow velocity patterns in preterm infants receiving prophylactic surfactant treatment. Acta Paediatr. 1992 Jun-Jul;81(6-7):504-10. doi: 10.1111/j.1651-2227.1992.tb12283.x.
van de Bor M, Walther FJ. Cerebral blood flow velocity regulation in preterm infants. Biol Neonate. 1991;59(6):329-35. doi: 10.1159/000243368.
Lou HC, Lassen NA, Friis-Hansen B. Impaired autoregulation of cerebral blood flow in the distressed newborn infant. J Pediatr. 1979 Jan;94(1):118-21. doi: 10.1016/s0022-3476(79)80373-x.
Fabres J, Carlo WA, Phillips V, Howard G, Ambalavanan N. Both extremes of arterial carbon dioxide pressure and the magnitude of fluctuations in arterial carbon dioxide pressure are associated with severe intraventricular hemorrhage in preterm infants. Pediatrics. 2007 Feb;119(2):299-305. doi: 10.1542/peds.2006-2434.
Fanaroff JM, Wilson-Costello DE, Newman NS, Montpetite MM, Fanaroff AA. Treated hypotension is associated with neonatal morbidity and hearing loss in extremely low birth weight infants. Pediatrics. 2006 Apr;117(4):1131-5. doi: 10.1542/peds.2005-1230.
van Ravenswaaij-Arts CM, Hopman JC, Kollee LA, van Amen JP, Stoelinga GB, van Geijn HP. The influence of respiratory distress syndrome on heart rate variability in very preterm infants. Early Hum Dev. 1991 Dec;27(3):207-21. doi: 10.1016/0378-3782(91)90195-9.
Other Identifiers
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H-31475
Identifier Type: -
Identifier Source: org_study_id
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