Radiation hepatitis following moving strip radiotherapy

Area of Science:

• Hepatology
• Radiation Oncology
• Gynecologic Oncology

Background:

• Veno-occlusive disease (VOD) of the liver, also known as sinusoidal obstruction syndrome (SOS), is a serious complication of certain medical treatments.
• Ovarian cancer treatment often involves radiation therapy, which can pose risks to surrounding organs like the liver.
• Understanding radiation dose tolerance of the liver is crucial for optimizing cancer treatment protocols.

Observation:

• A 71-year-old female patient developed acute liver veno-occlusive disease.
• The complication occurred following moving strip radiotherapy to the whole abdomen, utilizing the Toronto technique for ovarian carcinoma.
• The liver received a total dose of 22.5 Gray (Gy) in 10 fractions.

Findings:

• The observed radiation dose of 22.5 Gy in 10 fractions to the liver is evaluated in the context of previously reported regimens associated with VOD.
• The study considers potential patient-specific factors that may have sensitized the liver to the effects of irradiation.
• Comparison with other radiotherapy regimens suggests a potential threshold or contributing factors for VOD development.

Implications:

• This case underscores the importance of careful radiation dosimetry and treatment planning in whole abdomen radiotherapy for ovarian cancer.
• Identifying factors that sensitize the liver to radiation may lead to improved patient selection and risk stratification.
• Further research into liver radiation tolerance and VOD prevention strategies is warranted to enhance patient safety in gynecologic oncology treatments.