Gentamicin pharmacokinetics in kwashiorkor

Area of Science:

• Pediatric Nephrology
• Pharmacokinetics
• Nutritional Medicine

Background:

• Kwashiorkor, a severe form of malnutrition, affects renal function.
• Altered renal function in kwashiorkor can impact drug clearance.
• Gentamicin is an antibiotic commonly used for bacterial infections.

Purpose of the Study:

• To evaluate gentamicin pharmacokinetics in children with kwashiorkor.
• To determine if standard gentamicin dosing is safe and effective in this population.
• To assess the impact of nutritional rehabilitation on gentamicin elimination.

Main Methods:

• Single intravenous dose of gentamicin (2.4 mg/kg) administered to six children.
• Blood samples collected to measure gentamicin concentrations over time.
• Pharmacokinetic parameters, including half-life, were calculated.

Main Results:

• Therapeutic gentamicin concentrations were achieved.
• Initial gentamicin half-life was prolonged (229.0 +/- 94.8 min) during the acute phase.
• Gentamicin half-life normalized (178.5 +/- 99.5 min) after nutritional rehabilitation.

Conclusions:

• Standard gentamicin dosing can achieve therapeutic concentrations in children with kwashiorkor.
• Renal impairment in kwashiorkor prolongs gentamicin half-life.
• Nutritional rehabilitation improves gentamicin clearance, normalizing its half-life.