Puslapis 1 nuo 3218 rezultatus
Photodynamic therapy (PDT) is an anticancer combination therapy, which requires a photosensitiser, which tends to accumulate preferentially in the tumour, and light. Historically large, complex lasers have been used to carry out PDT treatment. Nowadays there is a wide range of coherent and
Advances made in the field of gynecology through the use of laser technology have provided numerous benefits to women. Procedures requiring hospitalization can now be performed on an outpatient basis. New hope for couples experiencing infertility problems is now available through the development of
We have been treating cancer since 1980 with a CO2 laser and since 1983 have added a Nd-YAG laser. We are applying the contact YAG laser with a new ceramics tip to cancer therapy. This ceramics laser is markedly different in its point of contact or noncontact from conventional lasers. In addition,
In modern medicine, lasers are increasingly utilized for treatment of a variety of pathologies as interest in less invasive treatment modalities intensifies. The physics behind lasers allows the same basic principles to be applied to a multitude of tissue types using slight modifications of the
We investigate the efficacy of daunomycin, some imino- and amino-substituted daunomycin analogues and the disubstituted aminoanthracenedione, mitoxantrone, in photosensitizing short-term cell kill upon irradiation in the long wavelength visible range, during incubation of Fisher rat thyroid cells
Metastatic mammary tumors in rats were treated by laser immunotherapy. Tumors injected by a laserabsorbing dye and an immunoadjuvant were irradiated non-invasively by a near-infrared laser. The successfully cured rats developed a long-term resistance to repeated tumor challenges. Using the sera from
Although major progress has been made in surgery, radiation, and chemotherapy for the treatment of malignancy during the last 20 years, there has been little improvement in the survival of patients with recurrent or advanced head and neck cancer. Because of the ease and accessibility for surgery and
Laser surgery, or laser-induced thermal therapy, is a minimally invasive alternative or adjuvant to surgical resection in treating tumors embedded in vital organs with poorly defined boundaries. Its use, however, is limited due to the lack of precise control of heating and slow rate of thermal
To evaluate predictive factors for local control, larynx preservation and overall survival in patients with early laryngeal cancer, who were treated with endoscopic transoral CO2 laser microsurgery.Transoral laser microsurgery (TLM) is the treatment of Thirty-three patients with newly diagnosed laryngeal carcinoma underwent endoscopic treatment with the carbon dioxide laser under microscopic control and venturi jet ventilation. Ten of these patients underwent emergency tumor debulking to relieve airway obstruction and to avoid emergency
OBJECTIVE
To assess the oncologic results and functional outcomes of CO(2) laser microsurgery in T1 and T2 hypopharyngeal cancer.
METHODS
The files of 119 T1 and T2 hypopharyngeal carcinoma cases primarily managed with laser surgery were reviewed. Cases were assessed for 5-year disease-specific
Bioassay methods for actinomycin D, 6-thioguanine, and adriamycin which utilize laser light scattering from suspensions of drug-sensitive bacteria have been developed. In 3 hours, serum and urine levels of the 3 drugs can be reproducibily measured. A sample volume of 0.1 ml may be assayed with a