Human tumour pH changes following hyperthermia and radiation therapy. 1984

J L Wike-Hooley, and J Van der Zee, and G C van Rhoon, and A P Van den Berg, and H S Reinhold

Measurement of human tumour pH was performed during treatment with whole-body hyperthermia (WBHT) at 41.8 degrees C, and prior to and following a series of combined local hyperthermia (LHT) and radiotherapy treatments. During WBHT no changes were seen in the 11 tumour measurements performed during heating, 'plateau' and cooling phases of treatment. Tumour pH rose significantly in 24 tumours in which paired determinations were performed prior to and following local therapy (mean rise, 0.23 pH units), while the 11 subcutaneous controls, measured in a non-treated area, remained unchanged. The lack of change in tumour pH during WBHT is probably related to the moderate treatment temperature (42 degrees C or less), whereas the rise seen following local therapy is probably the result of changes in tissue oxygenation and blood flow following therapy. These changes may have implications to the treatment of malignant disease.

UI MeSH Term Description Entries
D006979 Hyperthermia, Induced Abnormally high temperature intentionally induced in living things regionally or whole body. It is most often induced by radiation (heat waves, infra-red), ultrasound, or drugs. Fever Therapy,Hyperthermia, Local,Hyperthermia, Therapeutic,Thermotherapy,Induced Hyperthermia,Therapeutic Hyperthermia,Therapy, Fever,Local Hyperthermia
D009369 Neoplasms New abnormal growth of tissue. Malignant neoplasms show a greater degree of anaplasia and have the properties of invasion and metastasis, compared to benign neoplasms. Benign Neoplasm,Cancer,Malignant Neoplasm,Tumor,Tumors,Benign Neoplasms,Malignancy,Malignant Neoplasms,Neoplasia,Neoplasm,Neoplasms, Benign,Cancers,Malignancies,Neoplasias,Neoplasm, Benign,Neoplasm, Malignant,Neoplasms, Malignant
D003131 Combined Modality Therapy The treatment of a disease or condition by several different means simultaneously or sequentially. Chemoimmunotherapy, RADIOIMMUNOTHERAPY, chemoradiotherapy, cryochemotherapy, and SALVAGE THERAPY are seen most frequently, but their combinations with each other and surgery are also used. Multimodal Treatment,Therapy, Combined Modality,Combined Modality Therapies,Modality Therapies, Combined,Modality Therapy, Combined,Multimodal Treatments,Therapies, Combined Modality,Treatment, Multimodal,Treatments, Multimodal
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D006863 Hydrogen-Ion Concentration The normality of a solution with respect to HYDROGEN ions; H+. It is related to acidity measurements in most cases by pH pH,Concentration, Hydrogen-Ion,Concentrations, Hydrogen-Ion,Hydrogen Ion Concentration,Hydrogen-Ion Concentrations
D012867 Skin The outer covering of the body that protects it from the environment. It is composed of the DERMIS and the EPIDERMIS.

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