Capillary perfusion--a study in two groups of radiated patients for cancer of head and neck.

Laser Doppler velocitometry is novel non-invasive technique to assess cutaneous microcirculation. Patients undergoing radiation therapy for head and neck cancer with convention and accelerated fraction action were evaluated under normal condition before and after radiation. A total of 70 sites in group A (conventional fractionation) and 35 sites in group B (accelerated fractionation were evaluated. Increase in perfusion was noted in patients undergoing radiation with accelerated fractionation.