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<p><strong>You Are Here:</strong> <span class="crumb_link"><a href="/" class="crumb_link">AHRQ Archive Home</a> > <a href="/research/resarch.htm" class="crumb_link"><em>Research Activities</em> Archive</a> > <a href="." class="crumb_link">August 2006</a><br />
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<td><h1><a name="h1" id="h1"></a>Women's Health </h1>
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<p>This information is for reference purposes only. It was current when produced and may now be outdated. Archive material is no longer maintained, and some links may not work. Persons with disabilities having difficulty accessing this information should contact us at: <a href="https://info.ahrq.gov/">https://info.ahrq.gov</a>. Let us know the nature of the problem, the Web address of what you want, and your contact information. </p>
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<h2>Complications from chemotherapy in women with breast cancer are greater than previously estimated</h2>
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<p>Sixteen percent of women who underwent chemotherapy for breast cancer experienced serious adverse effects requiring emergency care or hospitalization, according to a new study supported in part by the Agency for Healthcare Research and Quality (HS10803). Most of the adverse events were related to serious complications caused by the toxicity of the drugs. These complications, which included anemia, dehydration, and reduced production of white blood cells, also increased the costs of care. </p>
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<p>The study is the first to analyze the risks of serious adverse effects from intravenous chemotherapy in women under age 65 since medications to treat the complications of chemotherapy became more available, the report's authors said. Michael J. Hassett, M.D., with the Harvard-affiliated Dana-Farber Cancer Institute, and colleagues found that the odds of experiencing a serious adverse effect increased by 20 percent per month for each additional month of chemotherapy administered to women after their initial breast cancer diagnosis. Women who received chemotherapy were more likely than women who did not to visit the emergency room or be hospitalized (61 percent vs. 42 percent).</p>
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<p>More than 8 percent of the women who had chemotherapy were seen in the emergency room or were hospitalized for infection and fever. The proportion of women treated for other chemotherapy-related problems included:</p>
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<ul>
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<li>Neutropenia or thrombocytopenia—disorders that reduce the production of white blood cells or platelets—5.5 percent.</li>
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<li>Electrolyte disorders, such as
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dehydration—2.5 percent.</li>
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<li>Nausea or diarrhea—2.4 percent.</li>
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<li>Fatigue, dizziness, and related
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conditions—2 percent.</li>
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<li>Deep venous thrombosis or pulmonary
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embolism—1.2 percent.</li>
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<li>Malnutrition—just under 1 percent.</li>
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<p>Expenditures for the hospital and emergency room care of each of the women adversely affected by chemotherapy averaged $10,000 more a year than expenditures for the same services for those women who underwent chemotherapy but did not have a serious complication. For chemotherapy patients who had adverse events, their annual medical expenditures for all causes averaged $13,000 more for hospital care, $406 more for emergency room visits, $16,000 more for outpatient care, and $1,900 more for prescription drugs than did the expenditures for the chemotherapy patients who did not experience serious complications.</p>
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<p>Details are in "Frequency and cost of chemotherapy-related serious effects in a population sample of women with breast cancer," by Dr. Hassett, A. James O'Malley, Juliana R. Pakes, and others in the August 16, 2006, <em>Journal of the National Cancer Institute</em> 98, pp. 1108-1117.</p>
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