[Serum and tissue levels of cefodizime in the pediatric patients]

K Matsuura1, T Ogata, K Araki

  • 1First Department of Surgery, Kochi Medical School.

Insights

Cefodizime antibiotic levels remained high in pediatric patients after surgery for simple hernia. This injectable medication showed sustained tissue concentrations and no observed side effects, indicating safety and efficacy.

Area of Science:

  • Pharmacology
  • Pediatric Surgery
  • Infectious Diseases

Background:

  • Antibiotic prophylaxis is crucial in pediatric surgery to prevent surgical site infections.
  • Cefodizime is a cephalosporin antibiotic with broad-spectrum activity.
  • Understanding drug distribution and persistence in pediatric patients is essential for optimizing treatment regimens.

Purpose of the Study:

  • To evaluate the pharmacokinetic profile of cefodizime in pediatric patients undergoing simple herniorrhaphy.
  • To determine cefodizime concentrations in serum and tissue at various time points post-administration.
  • To assess the safety and efficacy of cefodizime as an injectable antibiotic in this patient population.

Main Methods:

  • Administration of cefodizime (40 mg/kg) to 13 pediatric patients with simple herniorrhaphy.
  • Measurement of cefodizime concentrations in serum and surgical tissue samples.
  • Pharmacokinetic analysis of drug levels over time.

Main Results:

  • Mean serum cefodizime concentration was 43.1 +/- 13.3 µg/ml at 3 hours.
  • Mean tissue cefodizime concentration was 23.1 +/- 6.4 µg/g at 3 hours.
  • Sustained high cefodizime levels were observed in both serum and tissue, with slower elimination from tissue compared to serum.

Conclusions:

  • Cefodizime demonstrates favorable pharmacokinetic properties, with prolonged tissue retention in pediatric surgical patients.
  • The antibiotic was found to be safe and effective, with no adverse events reported.
  • Cefodizime is a suitable injectable antibiotic option for infection prevention and treatment in pediatric surgical cases.

Related Concept Videos

Pharmaceutical Alternatives: Stability-Related Therapeutic Nonequivalence01:22

Pharmaceutical Alternatives: Stability-Related Therapeutic Nonequivalence

Generic intravenous (IV) drugs are considered bioequivalent to their branded counterparts due to their 100% bioavailability upon administration. However, variations in stability among different drug products can significantly influence their therapeutic performance, even if they are pharmaceutically equivalent.Cefuroxime, a prophylactic antimicrobial, is often used as a single-dose IV injection for patients undergoing coronary artery bypass grafting surgery. A 3 g dose typically provides...
Drug Dosing: Infants and Children01:29

Drug Dosing: Infants and Children

Pediatric patient dosages diverge from adults due to disparities in body surface area, total body water, and extracellular fluid per kilogram of body weight. The dosing regimen considers the variations in pharmacokinetics and pharmacology across distinct age groups, encompassing preterm newborns, infants, young children, older children, and adolescents. Calculation of pediatric patient doses is predicated on determining body surface area, which exhibits a superior correlation with the child's...
Pharmacokinetics in Pediatric Patients: Overview and Drug Absorption01:23

Pharmacokinetics in Pediatric Patients: Overview and Drug Absorption

Understanding the physiological differences in the pediatric population is crucial for effective pharmacotherapy. Neonates, infants, and children exhibit significant variations in gastric pH, gastric emptying time, intestinal transit time, and biliary function. These variations profoundly affect oral drug absorption, necessitating a nuanced approach to pediatric dosing.Neonates present with a unique physiological profile, having a gastric pH greater than 4 and faster and more irregular gastric...
Pharmacokinetics in Pediatric Patients: Drug Distribution01:17

Pharmacokinetics in Pediatric Patients: Drug Distribution

Drug distribution in the pediatric population exhibits unique challenges and considerations due to the physiological differences between children, particularly neonates and infants, and adults. A crucial aspect of pediatric pharmacology is understanding how these differences impact the pharmacokinetics of various drugs, necessitating age-specific dosing strategies to ensure efficacy and safety.Neonates and infants have a higher total body water content, ~75%–90% of their body weight, compared...
Pharmacokinetics in Pediatric Patients: Drug Metabolism01:24

Pharmacokinetics in Pediatric Patients: Drug Metabolism

In pediatric care, understanding the nuances of hepatic drug metabolism is crucial, as it significantly differs from that of adults. This divergence is primarily due to the developmental stage of drug-metabolizing enzymes, which affects how medications are processed in the body. In neonates, for instance, the activity of Phase I enzymes—critical for the initial breakdown of drugs—is markedly reduced, functioning at just 20–40% of the levels seen in adults. This reduction poses a challenge in...
Pharmacokinetics in Pediatric Patients: Drug Excretion01:26

Pharmacokinetics in Pediatric Patients: Drug Excretion

In pediatric medicine, understanding the renal function and drug elimination nuances is crucial for administering safe and effective treatments. Newborns, in particular, display markedly slower renal functions than adults, profoundly affecting how drugs are cleared from their bodies. This slower drug clearance requires clinicians to extend the dosing intervals for many medications to prevent drug accumulation and toxicity while ensuring therapeutic efficacy.One key area where these adjustments...