Single-dose electron beam irradiation in treatment and prevention of keloids and hypertrophic scars.

Low megavolt electron beam irradiation was used on 354 sites in 199 patients at the Lahey Clinic either for palliation of symptomatic hypertrophic scars or as post-operative irradiation in an attempt to prevent formation or recurrence of hypertrophic scars. Electron energies used ranged from 1.5 to 3.

Surgically incurable well-differentiated thyroid carcinoma. Prognostic factors and results of therapy.

A series of 97 consecutive patients with well-differentiated thyroid carcinoma treated between 1941 and 1970 presented with distant metastatic disease or extensive nonresectable local neck disease or had residual carcinoma after thyroid resection. Men 40 years of age or younger and women 50 years of age or younger were considered at low risk for dying of disease; older patients were considered at high risk for dying of disease. Of 17 patients with distant metastatic carcinoma, 40% of younger patients in the low-risk group and 92% of older patients in the high-risk group died.

[Circadian rhythms and temperature homeostasis in monkeys during a flight on the Kosmos 1514 biosatellite].

In the course of a 5-day space flight of two rhesus-monkeys the following parameters were recorded at an interval of 16 min: core body temperature (Tc), skin temperature (Ts), and motor activity (MA). The telemetric Tc sensor was implanted subcutaneously in the right axilla, Ts thermistor was attached to the right ankle, and the MA piezotape was fixed to the inner side of the vest. Circadian rhythms of Tc varied with a period of 24 hours in one monkey and 25 hours in the other.

Radiotherapy for cancer of the head and neck.

Achievements in radiotherapy of head and neck cancer continue. During the past decade, bench marks have been established for certain early staged malignancies. Technical advances have occurred in higher energy accelerators with the development of dual photon and medium-range electron machines.

Megavolt electron irradiation in the treatment of recurrent carcinoma of the breast on the chest wall.

Low megavolt electron beam therapy was used to treat 68 women and one man with recurrent carcinoma of the breast on the chest wall. Photon irradiation had been used previously in 53 patients. Of the 63 patients who survived 2 months or longer after electron irradiation, 59 (94%) achieved a complete response.