Intraoperative phototherapy: a comparative study of intravenous and topical photofrin II and aminolevulinic acid.
This study compares the systemic and topical application of photofrin II and aminolevulinic acid as an intraoperative adjuvant therapy in the C3H mouse radiation-induced fibrosarcoma model. Dose-development and time-dependent studies were first conducted followed by intraoperative phototherapy studies with photofrin II and aminolevulinic acid. Study results clearly show that intraoperative phototherapy after aminolevulinic acid topical application is significantly more effective than treatment with photofrin II given intravenously or topically (p < 0.05) in this animal tumor model. The concept of topical application of photosensitizers and the rationale for intraoperative adjuvant phototherapy are discussed.
Davis
R K
RK
Division of Otolaryngology-Head and Neck Surgery, University of Utah School of Medicine, Salt Lake City 84132, USA.
Straight
R
R
Sun
Y
Y
D000622:Aminolevulinic Acid / Q000008:administration & dosage / Q000627:therapeutic use*; D000818:Animals; D017024:Chemotherapy, Adjuvant; D017323:Dihematoporphyrin Ether / Q000008:administration & dosage / Q000627:therapeutic use*; D004305:Dose-Response Relationship, Drug; D005354:Fibrosarcoma / Q000188:drug therapy* / Q000601:surgery*; D006801:Humans; D007231:Infant, Newborn; D007430:Intraoperative Care; D051379:Mice; D008815:Mice, Inbred Strains; D010778:Photochemotherapy; D017319:Photosensitizing Agents / Q000008:administration & dosage / Q000627:therapeutic use*; D013997:Time Factors; D014407:Tumor Cells, Cultured
D017319:Photosensitizing Agents; D000622:Aminolevulinic Acid; D017323:Dihematoporphyrin Ether