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Guidelines for Complications of Cancer Treatment Vol VIII Part B

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MucositisMucositis is an inflammatory response <strong>of</strong> mucosal epithelialcells to the cytotoxic effects <strong>of</strong> radiation and chemotherapyPathogenesisPhase I: Vascular phase – release <strong>of</strong> free radicals, resulting inincreased vascular permeabilityPhase II: Epithelial phase: Impaired cell division, reductionin the epithelial turn over, erythemaPhase III: Ulcerative phase: microbial colonization <strong>of</strong> mucosalsurfacePhase IV: Healing phase: hematopoietic recoveryClinical effects Frequent treatment breaks: leading to inferior localcontrol rates. Pain. Malnutrition. Local and systemic infection. Need <strong>for</strong> feeding tube placement. Hospitalization.177

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