BACKGROUND AND PURPOSE: Subclinical cerebral edema occurs in many, if not most, children with diabetic ketoacidosis (DKA) and may be an indicator of subtle brain injury. Brain ratios of N-acetylaspartate (NAA) to creatine (Cr), measured by proton MR spectroscopy, decrease with neuronal injury or dysfunction. We hypothesized that brain NAA/Cr ratios may be decreased in children in DKA, indicating subtle neuronal injury. MATERIALS AND METHODS: Twenty-nine children with DKA underwent cerebral proton MR spectroscopy during DKA treatment (2-12 hours after initiating therapy) and after recovery from the episode (72 hours or more after the initiation of therapy). We measured peak heights of NAA, Cr, and choline (Cho) in 3 locations within the brain: the occipital gray matter, the basal ganglia, and periaqueductal gray matter. These regions were identified in previous studies as areas at greater risk for neurologic injury in DKA-related cerebral edema. We calculated the ratios of NAA/Cr and Cho/Cr and compared these ratios during the acute illness and recovery periods. RESULTS: In the basal ganglia, the ratio of NAA/Cr was significantly lower during DKA treatment compared with that after recovery (1.68 +/- 0.24 versus 1.86 +/- 0.28, P<.005). There was a trend toward lower NAA/Cr ratios during DKA treatment in the periaqueductal gray matter (1.66 +/- 0.38 versus 1.91 +/- 0.50, P=.06) and the occipital gray matter (1.97 +/- 0.28 versus 2.13 +/- 0.18, P=.08). In contrast, there were no significant changes in Cho/Cr ratios in any region. CONCLUSIONS: NAA/Cr ratios are decreased in children during DKA and improve after recovery. This finding suggests that during DKA neuronal function or viability or both are compromised and improve after treatment and recovery.
BACKGROUND AND PURPOSE: Subclinical cerebral edema occurs in many, if not most, children with diabetic ketoacidosis (DKA) and may be an indicator of subtle brain injury. Brain ratios of N-acetylaspartate (NAA) to creatine (Cr), measured by proton MR spectroscopy, decrease with neuronal injury or dysfunction. We hypothesized that brain NAA/Cr ratios may be decreased in children in DKA, indicating subtle neuronal injury. MATERIALS AND METHODS: Twenty-nine children with DKA underwent cerebral proton MR spectroscopy during DKA treatment (2-12 hours after initiating therapy) and after recovery from the episode (72 hours or more after the initiation of therapy). We measured peak heights of NAA, Cr, and choline (Cho) in 3 locations within the brain: the occipital gray matter, the basal ganglia, and periaqueductal gray matter. These regions were identified in previous studies as areas at greater risk for neurologic injury in DKA-related cerebral edema. We calculated the ratios of NAA/Cr and Cho/Cr and compared these ratios during the acute illness and recovery periods. RESULTS: In the basal ganglia, the ratio of NAA/Cr was significantly lower during DKA treatment compared with that after recovery (1.68 +/- 0.24 versus 1.86 +/- 0.28, P<.005). There was a trend toward lower NAA/Cr ratios during DKA treatment in the periaqueductal gray matter (1.66 +/- 0.38 versus 1.91 +/- 0.50, P=.06) and the occipital gray matter (1.97 +/- 0.28 versus 2.13 +/- 0.18, P=.08). In contrast, there were no significant changes in Cho/Cr ratios in any region. CONCLUSIONS:NAA/Cr ratios are decreased in children during DKA and improve after recovery. This finding suggests that during DKA neuronal function or viability or both are compromised and improve after treatment and recovery.
Authors: Nicole S Glaser; Sandra L Wootton-Gorges; Michael H Buonocore; James P Marcin; Arleta Rewers; John Strain; Joseph DiCarlo; E Kirk Neely; Patrick Barnes; Nathan Kuppermann Journal: Pediatr Diabetes Date: 2006-04 Impact factor: 4.866
Authors: Sandra L Wootton-Gorges; Michael H Buonocore; Nathan Kuppermann; James Marcin; Joseph Dicarlo; E Kirk Neely; Patrick D Barnes; Nicole Glaser Journal: AJNR Am J Neuroradiol Date: 2005-05 Impact factor: 3.825
Authors: N Glaser; P Barnett; I McCaslin; D Nelson; J Trainor; J Louie; F Kaufman; K Quayle; M Roback; R Malley; N Kuppermann Journal: N Engl J Med Date: 2001-01-25 Impact factor: 91.245
Authors: S L Wootton-Gorges; M H Buonocore; R A Caltagirone; N Kuppermann; N S Glaser Journal: AJNR Am J Neuroradiol Date: 2009-11-19 Impact factor: 3.825
Authors: Simona Ghetti; Nathan Kuppermann; Arleta Rewers; Sage R Myers; Jeff E Schunk; Michael J Stoner; Aris Garro; Kimberly S Quayle; Kathleen M Brown; Jennifer L Trainor; Leah Tzimenatos; Andrew D DePiero; Julie K McManemy; Lise E Nigrovic; Maria Y Kwok; Clinton S Perry; Cody S Olsen; T Charles Casper; Nicole S Glaser Journal: Diabetes Care Date: 2020-09-22 Impact factor: 19.112