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Radiation Therapy
Correlates
Prevalence
Treatment
Correlates
Patients receiving radiation to the gastrointestinal (GI) tract or brain have the greatest
potential for nausea/vomiting as a side effect. Because cells of the GI tract
are dividing quickly, they are quite sensitive to radiation therapy. Radiation
to the brain is believed to stimulate the brain’s vomiting center or chemotherapy trigger zone. Similar to chemotherapy, radiation dose factors
also play a role in determining the possible occurrence of nausea and vomiting.
In general, the higher the daily fractional dose and the greater the amount of
tissue that is irradiated, the higher the potential for nausea and vomiting.
In addition, the larger the amount of GI tract irradiated (particularly for
fields that include the small intestine and stomach), the higher the potential
for nausea and vomiting. Total-body irradiation before bone marrow transplant,
for example, has a high probability of inducing nausea and vomiting as acute
side effects.
Prevalence
Nausea and vomiting from radiation may be acute and self-limiting, usually
occurring 30 minutes to several hours after treatment. Patients report that
symptoms improve on days that they are not being treated. There are also
cumulative effects that may occur in patients receiving radiation therapy to
the GI tract.[1]
Treatment
Complete control rates with 5-HT3 antagonists for total-body irradiation vary
from 50% to 90%.[2-4] The role of corticosteroids in combination with 5-HT3
antagonists has not been studied.
References
-
Kris MG, Hesketh PJ, Somerfield MR, et al.: American Society of Clinical Oncology guideline for antiemetics in oncology: update 2006. J Clin Oncol 24 (18): 2932-47, 2006.
[PUBMED Abstract]
-
Spitzer TR, Grunberg SM, Dicato MA: Antiemetic strategies for high-dose chemoradiotherapy-induced nausea and vomiting. Support Care Cancer 6 (3): 233-6, 1998.
[PUBMED Abstract]
-
Prentice HG, Cunningham S, Gandhi L, et al.: Granisetron in the prevention of irradiation-induced emesis. Bone Marrow Transplant 15 (3): 445-8, 1995.
[PUBMED Abstract]
-
Schwella N, König V, Schwerdtfeger R, et al.: Ondansetron for efficient emesis control during total body irradiation. Bone Marrow Transplant 13 (2): 169-71, 1994.
[PUBMED Abstract]
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