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Fatal Cerebral Edema in a Young Adult with Diabetic Ketoacidosis: Blame the Bicarbonate?

ABSTRACT: Cerebral edema is a devastating complication of DKA which is extremely rare in adults but is the leading cause of diabetes-related death in the pediatric population. Newly diagnosed diabetes, younger age, first episode of DKA, severity of DKA at presentation, and administration of bicarbonate are predictive of cerebral edema in DKA. We present a case of a young adult with DKA as the presenting symptom of diabetes, whose clinical course was complicated by renal failure, refractory shock, and cerebral edema. This case addresses the controversy surrounding bicarbonate therapy in DKA and its possible role in the development of a rare fatal complication of DKA.

SUBMITTER: Natarajan S

PROVIDER: S-EPMC7210517 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

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Fatal Cerebral Edema in a Young Adult with Diabetic Ketoacidosis: Blame the Bicarbonate?

Natarajan Sameera S Kulkarni Radhika R Tangri Apoorva A

Case reports in critical care 20200430

Cerebral edema is a devastating complication of DKA which is extremely rare in adults but is the leading cause of diabetes-related death in the pediatric population. Newly diagnosed diabetes, younger age, first episode of DKA, severity of DKA at presentation, and administration of bicarbonate are predictive of cerebral edema in DKA. We present a case of a young adult with DKA as the presenting symptom of diabetes, whose clinical course was complicated by renal failure, refractory shock, and cere ...[more]

PMID: 32411486

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Project description:OBJECTIVES:Neurologic deterioration associated with cerebral edema in diabetic ketoacidosis is typically sudden in onset, progresses rapidly, and requires emergent treatment. The utility of brain imaging by head CT in decisions to treat for cerebral edema has not been previously studied. The objective of this study was to describe the characteristics of pediatric patients with diabetic ketoacidosis who develop altered mental status and evaluate the role of head CT in this cohort. DESIGN:Retrospective analysis of clinical, biochemical, and radiologic data. SETTING:Tertiary care children's hospital (2004-2010). PATIENTS:Six hundred eighty-six admissions of patients (< 26 yr) with diabetic ketoacidosis. INTERVENTIONS:None. MEASUREMENTS AND MAIN RESULTS:Altered mental status was documented during 96 of 686 diabetic ketoacidosis admissions (14%). Compared with alert patients, those with altered mental status were younger (median, 12.0 vs 13.1 yr; p = 0.007) and more acidotic (pH, 7.04 vs 7.19; p < 0.001), with higher serum osmolality (328 vs 315 mOsm/kg; p < 0.001) and longer hospital length of stay (4.5 vs 3 d; p = 0.002). Head CT was performed during 60 of 96 diabetic ketoacidosis admissions with altered mental status (63%), 16 (27%) of which had abnormal results. Hyperosmolar therapy for cerebral edema was given during 23 of the 60 admissions (38%), during which 12 (52%) had normal head CT results, eight of these 12 (67%) after cerebral edema treatment and four (33%) before. Of the 11 admissions with abnormal head CT results that received hyperosmolar therapy, four head CT scan (36%) occurred after hyperosmolar treatment and seven (64%) before. For the 11 admissions with head CT before cerebral edema treatment, there was a median 2-hour delay between head CT and hyperosmolar therapy. CONCLUSIONS:In this single-center retrospective study, there was no evidence that decisions about treatment of patients with diabetic ketoacidosis and suspected cerebral edema were enhanced by head CT, and head CT may have led to a significant delay in hyperosmolar therapy.

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Fatal Cerebral Edema in a Young Adult with Diabetic Ketoacidosis: Blame the Bicarbonate?

Publications

Fatal Cerebral Edema in a Young Adult with Diabetic Ketoacidosis: Blame the Bicarbonate?

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