Predicting cisplatin ototoxicity in children: the influence of age and the cumulative dose

Y Li1, R B Womer, J H Silber

  • 1The Center for Outcomes Research, The Children's Hospital of Philadelphia, 3535 Market St. Suite 1029. Philadelphia, PA 19104, USA. yuelin@mail.med.upenn.edu

European Journal of Cancer (Oxford, England : 1990)
|November 3, 2004
PubMed

Insights

Younger children and higher cisplatin doses increase the risk of hearing loss in pediatric cancer patients. Age at treatment and cumulative cisplatin dosage are key factors for cisplatin ototoxicity.

Area of Science:

  • Pediatric Oncology
  • Ototoxicity Research
  • Audiology

Background:

  • Cisplatin is a crucial chemotherapy agent used for various pediatric cancers.
  • Ototoxicity, particularly high-frequency hearing loss, is a significant side effect of cisplatin treatment in children.
  • Identifying risk factors is essential for mitigating cisplatin-induced hearing damage.

Purpose of the Study:

  • To identify specific risk factors associated with high-frequency hearing loss in children treated with cisplatin.
  • To analyze the relationship between patient age, cisplatin dosage, and the development of ototoxicity.
  • To provide data for improved monitoring and prevention strategies.

Main Methods:

  • Retrospective analysis of off-treatment pure-tone audiograms from 153 pediatric patients.
  • Patients treated with cisplatin (40-200 mg/m(2)/cycle) for germ cell tumours, hepatoblastoma, neuroblastoma, or osteosarcoma were included.
  • Statistical analysis, including logistic regression, was used to determine risk factors.

Main Results:

  • Significant correlations were found between the risk of bilateral moderate to severe high-frequency hearing loss and age at treatment (P<0.001) and cisplatin dosages (individual and cumulative, P<0.005).
  • Children younger than 5 years had a significantly higher risk (OR=21.17) of cisplatin ototoxicity compared to those older than 15 years.
  • Age at treatment and cumulative cisplatin dose emerged as the most critical predictors of hearing loss.

Conclusions:

  • Age at treatment and cumulative cisplatin dose are the primary risk factors for developing moderate to severe high-frequency hearing loss in children undergoing cisplatin therapy.
  • Younger children are particularly vulnerable to cisplatin-induced ototoxicity.
  • These findings underscore the need for careful monitoring of hearing function in pediatric patients receiving cisplatin, especially younger individuals.

Related Concept Videos

Determination of Multiple Dosing Parameters: Steady-State, Minimum and Maximum Concentrations01:15

Determination of Multiple Dosing Parameters: Steady-State, Minimum and Maximum Concentrations

Gentamicin, an aminoglycoside antibiotic, is commonly administered via intermittent intravenous infusion to treat severe infections. An intermittent one-hour infusion of gentamicin, administered at eight-hour intervals, allows for precise control of plasma drug concentrations, minimizing toxicity while ensuring therapeutic efficacy. Pharmacokinetic principles govern the dynamics of plasma concentrations and can be mathematically described using specific equations.The plasma drug concentration...
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 Geriatric Patients: Effect of Age on Drug Excretion01:18

Pharmacokinetics in Geriatric Patients: Effect of Age on Drug Excretion

In geriatric patients, renal physiology undergoes significant changes, including diminished renal blood flow and a lower glomerular filtration rate (GFR), leading to alterations in medication clearance. Drugs such as aminoglycoside antibiotics, lithium, and digoxin, which rely on glomerular filtration for removal from the body, particularly impact pharmacokinetics. These drugs tend to have slower clearance rates in older adults, necessitating careful dosage considerations.Evaluation of renal...
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...