Photoradiation therapy (PRT) with administration of hematoporphyrin derivative (HPD) was performed in ten cases of early stage central-type lung cancer of which six cases were treated by PRT alone due to inoperability because of poor pulmonary function in five and refusal of surgery in one. Four cas
Laser photoradiation therapy of cancer following hematoporphyrin sensitization
β Scribed by Alan G. Wile; Anton Dahlman; Robert G. Burns; Dr. Michael W. Berns
- Publisher
- John Wiley and Sons
- Year
- 1982
- Tongue
- English
- Weight
- 362 KB
- Volume
- 2
- Category
- Article
- ISSN
- 0196-8092
No coin nor oath required. For personal study only.
β¦ Synopsis
Abstract
Hematoporphyrin derivativeβphotoradiation therapy (HPDβPRT) of human malignancy has been performed on 267 tumor sites in 50 patients. Tumor response has been assayed at 24 hours and one month following treatment with 625β635 nm light from an argon laserβpumped dye laser. The majority of tumors treated were dermal breast cancer recurrences (21 cases), local recurrence of ENT squamous cell carcinomas (16 cases), and ENT cutaneous metastases of squamous cell carcinomas (9 cases). A 30βday favorable response was judged to be either complete regression of the tumor or reduction of tumor diameter by greater than 50%. The above categories of tumors had a combined favorable response of 81%. Appropriate dosimetry is discussed.
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Kodak projectors with #2418 red Coming filters were used as a light source to treat cutaneous and subcutaneous malignancies in five patients who previously had been given hematoporphyrin derivative (HpD). An argon dye laser system was used to treat malignancies in patients who also were given the Hp
Hematoporphyrin derivative-photoradiation therapy (HPD-PRT) was used to treat choroidal melanomas in 23 human subjects. Tumor sizes were divided into three categories: less than 500 mm3 (11 patients), 500-1,OOO mm3 (four patients), and greater than 1,OOO mm3 (eight patients). Tumors were exposed to
Two patients were treated at 20 different tumor sites by hematoporphyrin derivative (HPD) photoradiation therapy (PRT). An infrared detector was used to record changes in surface temperature during laser exposure. A temperature rise of up to 4.9 degrees C was recorded for a total energy of 15-30 J/c
Visual function for ten patients undergoing HPD-PRT was tested using 1) the Graham Field Eye Chart for distance vision, 2) pseudo-isochromatic plates for color vision, and 3) Amsler grid for changes in macular function. Whereas some increases and decreases in ocular function were observed, no clear
## Abstract In a rabbit model, endometriotic lesions were utilized to study hematoporphyrin derivative (HPD) uptake and the effect of photoradiation using the gold vapor laser. Morphological studies confirmed successful induction of ectopic endometrial growth and the lesions displayed preferential