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A massive dose of vincristine.
Japanese Journal of Clinical Oncology
|September 1, 1987
Summary
A patient with esophageal cancer survived a mistaken vincristine overdose, experiencing severe neurological and gastrointestinal side effects. This case highlights the importance of careful drug administration in chemotherapy to prevent potentially fatal errors.
Area of Science:
- Oncology
- Pharmacology
- Clinical Toxicology
Background:
- Esophageal cancer is a significant global health concern.
- Chemotherapy regimens for advanced cancers often involve potent cytotoxic agents.
- Vincristine and vinblastine are commonly used vinca alkaloids with distinct toxicity profiles.
Observation:
- A patient with metastatic esophageal cancer inadvertently received vincristine instead of vinblastine.
- The patient developed severe central and peripheral neuropathy, gastrointestinal distress, bone marrow suppression, and mucocutaneous toxicity.
- Myocardial toxicity was suspected, though not previously documented for vincristine.
Findings:
- Despite the medication error and multiorgan derangement, the patient survived the toxic effects.
- Most toxicities resolved within a month, with residual peripheral neuropathy.
- The chemotherapy demonstrated remarkable efficacy against both the primary tumor and metastatic lesions.
Implications:
- This case underscores the critical need for meticulous drug verification in chemotherapy administration.
- Physician experience and double-checking doses/concentrations are vital to prevent medication errors.
- The potential for undocumented toxicities, such as myocardial effects, warrants further investigation.