Peer-reviewed veterinary case report
Photodynamic hyperthermal chemotherapy with indocyanine green: a novel cancer therapy for 16 cases of malignant soft tissue sarcoma.
- Journal:
- Journal of veterinary science
- Year:
- 2014
- Authors:
- Onoyama, Masaki et al.
- Affiliation:
- Yamaguchi University · Japan
Plain-English summary
In this study, 16 pets with malignant soft tissue sarcoma, which is a type of cancer, were treated using a new approach called photodynamic hyperthermal chemotherapy (PHCT). This method combined light therapy, heat treatment, and local chemotherapy after the tumors were surgically removed. The treatment was given over a period of 1 to 2 weeks and could be repeated multiple times. Thankfully, none of the pets experienced serious side effects, and many showed promising results, with 70% of dogs and 50% of cats not having any signs of cancer returning after treatment. Overall, the findings suggest that PHCT could be a helpful option for pets with this type of cancer.
Abstract
Sixteen cases of malignant soft tissue sarcoma (STS; 10 canines and six felines) were treated with a novel triple therapy that combined photodynamic therapy, hyperthermia using indocyanine green with a broadband light source, and local chemotherapy after surgical tumor resection. This triple therapy was called photodynamic hyperthermal chemotherapy (PHCT). In all cases, the surgical margin was insufficient. In one feline case, PHCT was performed without surgical resection. PHCT was performed over an interval of 1 to 2 weeks and was repeated three to 21 times. No severe side effects, including severe skin burns, necrosis, or skin suture rupture, were observed in any of the animals. No disease recurrence was observed in seven out of 10 (70.0%) dogs and three out of six (50.0%) cats over the follow-up periods ranging from 238 to 1901 days. These results suggest that PHCT decreases the risk of STS recurrence. PHCT should therefore be considered an adjuvant therapy for treating companion animals with STS in veterinary medicine.
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Search related cases →Original publication: https://pubmed.ncbi.nlm.nih.gov/24136207/