1, radiotherapy:
Radiotherapy is recognized as the preferred treatment of nasopharyngeal carcinoma. 1979 NPC session of the NPC in Phase I of radiotherapy. Radiation therapy for nasopharyngeal carcinoma can be divided into radical radiotherapy and palliative radiotherapy.
Radiotherapy contraindications: ① Karnofski grading 60 points below ② extensive metastasis; ③ radioactive cerebral spinal cord injury; ④ other infectious diseases such as mental illness or have not yet control.
Application of nasopharyngeal carcinoma radiotherapy to kill tumor cells, but also normal tissues or organs inevitably produce radiation exposure and response. Radiation response and dose-dependent reduction, the scope of irradiation, irradiation treatment for normal tissues or organs closely related to tolerance.
Radiation response:
1) total-body irradiation reaction include: weakness, dizziness, Weina diminish, nausea, vomiting, mouth or Bianmei tasteless, such as insomnia or sleepiness. Although varying degrees, but the symptomatic treatment can be overcome in general, completed radiotherapy treatment.
2) mucosal reactions: oropharynx and nasopharynx, nasal cavity, paranasal sinus mucosa in the 40 Gy radiation mucosal edema can occur after or congestive, exudative increase in serious cases can cause at various points, or flake tunica albuginea. Often in the process of irradiation and throat pain, eating difficulties, such as stuffy nose. Serious cases should be suspended irradiation, proper rest, to be dissipated reaction after treatment. Usually available in 1 year after radiotherapy gradually absorbed receded, but there are a few cases in the 10 years after radiotherapy still exists.
3) salivary gland radiation reaction: Saliva secretion decreased significantly in patients with dry mouth, dry food into difficulties.
4) radiation reaction of the skin and subcutaneous tissue: a general irradiated skin erythema region, pigmentation, hair loss and dry and peeling, such as irradiation speed, skin edema also continue to irradiation can form blisters, integration into large moist peeling, and fluid, erosion become moist dermatitis.
5) radiotherapy for advanced radiation reaction: often face and neck skin and subcutaneous tissue atrophy, skin thinning, telangiectasia, such as pigment faded.
6) speaks difficulties: masticatory muscles, joints temporal maxillary exposure can cause varying degrees of difficulty mouth.
7), and radioactive radiation caries mandibular necrosis.
radioactive erysipelas skin and subcutaneous tissue.
9) radioactive otitis media.
10) radioactive brain and spinal cord injury.
Second, the surgical treatment:
Suitable for:
1) pathological types of well-differentiated adenocarcinoma and squamous cell carcinoma or other non-sensitive cancer radiotherapy, lesions confined to the anterior or posterior wall of the top, the body without surgery may be considered taboo in the original lesion excision. On Ⅱ, Ⅲ, Ⅳ patients are not surgical treatment.
2) after radiotherapy or neck nasopharyngeal residual or recurrent lesions, such as limitations in the anterior or posterior wall of the nasopharynx top, no cranial base bone destruction, the general situation, and recently made a radiotherapy, radiotherapy should no longer be considered resection of lesions.
3) residual or recurrent neck, such as limited scope of activities can be considered for cervical lymph node removal surgery.
Nasopharyngeal carcinoma patients with persistent residual lymph node surgery, as appropriate, after radiotherapy in 3-6 months time, a better prognosis.
Third, chemical treatment:
More than 95 per cent of nasopharyngeal carcinoma poorly differentiated carcinoma, and undifferentiated carcinoma type, the degree of malignancy, grow fast, easy blood or lymph node metastasis. Nasopharyngeal cancer diagnosed at 75% of the patients had Ⅲ and Ⅳ are, the more nights of view, the more opportunities for distant metastasis, the poorer the prognosis. Radiation therapy is a local treatment, not prevention of distant metastasis and therefore the merger of several drugs or chemicals in the treatment might reduce or eliminate the small tumor lesions, improve the treatment outcome. Main methods:
(1) combined with chemotherapy programme:
1) CF programme: cyclophosphamide and 5 - are broad-spectrum anti-cancer drug 5-fluorouracil, a certain effect on nasopharyngeal carcinoma.
2) PF programme: chlorine-ammonia combination of cisplatin and 5 - 5-fluorouracil a better effect on nasopharyngeal carcinoma, effectual fast, but for the shortcomings of the short duration of remission. Can be used before radiotherapy to tumor regression, or for patients with chemotherapy alone.
3) PFA programme: platinum-chlorine and ammonia 5 - 5-fluorouracil, hydroxyl and Tali-such as doxorubicin. Significantly reduce the role of tumor.
4) CBF programme: The main use of cyclophosphamide, adriamycin honour and 5 - 5-fluorouracil.
2) chemotherapy and radiotherapy in the treatment: The treatment effects were relatively good, and 5-year survival rate higher.