Overweight and obese pediatric patients may have elevated initial vancomycin trough concentrations when empiric dosing is based on TBW. Special attention to therapeutic drug monitoring is warranted in all children.
Metabolic alkalosis is a common acid-base disturbance occurring in critically ill pediatric patients. Acetazolamide and arginine hydrochloride are pharmacologic agents used at our institution for patients refractory to first-line therapy or those unable to tolerate fluid replacement. The objective of this retrospective review was to determine if a course of arginine hydrochloride or acetazolamide was more effective at correcting metabolic alkalosis within a 24-hour period. Patients included received a course of acetazolamide or arginine hydrochloride for metabolic alkalosis with a repeat metabolic panel 18-30 hours after treatment initiation. Exclusion criteria consisted of previous treatment with either drug within 24 hours or a documented metabolic disorder. Efficacy was determined by proportion of patients achieving resolution of metabolic alkalosis (treatment success: serum CO2 <30 mmol/L and Cl >96 mmol/L). Additionally, mean change in serum bicarbonate and chloride concentrations was assessed. Thirty-four patients met inclusion criteria, 19 patients received acetazolamide and 15 patients received arginine hydrochloride. Treatment success was similar in patients receiving acetazolamide and arginine hydrochloride (37% vs. 7%, P = 0.053). Correction of serum bicarbonate was observed in more patients treated with acetazolamide (42% vs. 7%, P = 0.047). Both groups had a similar increase in mean serum chloride concentration (5.7 ± 5.3 vs. 4.4 ± 4.4 mmol/L, P = 0.458). Mean decrease in serum bicarbonate concentration was equivalent between groups (5.6 ± 5.2 vs. 2.8 ± 4.7, mmol/L, P = 0.110). Acetazolamide and arginine hydrochloride appear to be equally effective in correcting metabolic alkalosis in critically ill pediatric patients.
Obese and overweight children are at risk of developing nonalcoholic fatty liver disease (NAFLD), which can lead to steatohepatitis, cirrhosis, and liver transplantation. Neuropsychiatric conditions affect an increasing proportion of children and often require neuropsychiatric medications (NPMs) that are associated with weight gain and/or drug-induced liver injury. We sought to evaluate the role that the extended use of NPMs play in pediatric NAFLD. Medical chart review was conducted for 260 patients with NAFLD (NPM = 77, non-NPM = 183) seen in the Liver Care Center at Children's Mercy Hospital between 2000 and 2016.Outcome measures included body mass index (BMI) percentile, BMI z-score, aspartate aminotransferase (AST), alanine aminotransferase (ALT), total bilirubin, and gamma glutamyltransferase, and were collected at diagnosis, 6-18 month follow-up, and 18-36 months. Controlling for race and metformin, there was a significant increase over time in BMI z-score (p < 0.01) and total bilirubin (p = 0.03), with only initial decreases in ALT (p < 0.01) and AST (p < 0.01). Except for higher total bilirubin in the non-NPM group, no main effect of group or interaction effect was found. Similar patterns remained when subjects were analyzed by NPM drug class. Further study is needed to confirm these findings and to evaluate the effects of NPM dose and duration of exposure, by drug class, on pediatric NAFLD outcomes. Study Highlights WHAT IS THE CURRENT KNOWLEDGE ON THE TOPIC?Nonalcoholic fatty liver disease (NAFLD) is affecting an increasing number of pediatric patients. Neuropsychiatric medications can be associated with weight gain and drug-induced liver injury. Drug-induced liver injury can worsen liver disease in those who already have NAFLD. WHAT QUESTION DID THIS STUDY ADDRESS?How do neuropsychiatric medications affect body mass index and common markers of hepatocellular inflammation over time in pediatric patients with NAFLD?
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