Oral Complications of Cancer Therapy Flashcards
Frequent oral complication of chemo and radiotherapy; in radiation of head and neck, can be severe->limiting dose or leading to discontinuation; incidence higher in patients w/ primary tumor in oral cavity, oropharynx or nasopharynx, concomitant CT, total dose>500cGy
Oral Mucositis
Can appear anywhere in the oral mucosa; nonkeratinized mucosa is more often affected; keratosis; erythema; edema; ulceration; bleeding; pain; most secondary infections involve Candida and HSV
Oral Mucositis
_ -induced Oral Mucositis: 7-14 days after initiation; heals within a few weeks after
Chemotherapy
Oral mucositis related to _ for
/ cancer: typical 6-7 weeks regimen-> onset by the 2nd/3rd week; increased severity with increased dose; areas affected by the field; duration: several weeks after the end
Radiotherapy for head/neck cancers
Subjective complaint of dry mouth
xerostomia
Difficulty in chewing and swallowing; need to sip water all day long; loss of taste and appetite; oral tissues dry and erythematous; saliva cannot be expressed from the salivary ducts; tongue deppapilated; sever caries and perio disease
salivary gland hypofunction and xerostomia
50-70% of patients receiving CT and/or RT; distorted or impaired ability to taste; affects appetite; reduces caloric intake; induces weight loss; decreases nutritional status
Dysgeusia
Routine herpes labialis to severe stomatitis: large, painful ulcerations throughout the mouth; recurrent infections occurring simultaneously with cancer-therapy induced OM-> development of extensive, confluent mucosal ulcerations clinically similar to primary herpetic stomatitis
Herpes simplex virus
Result of reactivation of latent virus; painful clusters of vesicles usually localized to one neurodermatome
Varicella-zoster virus
Characterized by a non-healing area of exposed mandibular and maxillary bone of at least 6 months duration in a patient who has been treated with radiation therapy for cancer; defect in wound healing that is consequence of diminished vascularization secondary to irradiation, and that does not represent an infectious process
Osteoradionecrosis
Denudation of soft tissue and exposure and necrosis of underlying bone, causing a chronic, painful, foul-smelling, festering lesion; mandible is more involved often than the maxilla
Osteoradionecrosis