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Prognostic factors in canine appendicular osteosarcoma - a meta-analysis
Ilse Boerman1, Gayathri T Selvarajah, Mirjam Nielen
1Department of Clinical Sciences of Companion Animals, Faculty of Veterinary Medicine, Utrecht University, Utrecht, The Netherlands.
BMC Veterinary Research
|May 17, 2012
Summary
Elevated serum alkaline phosphatase (SALP) and proximal humeral tumors are poor prognostic indicators for canine appendicular osteosarcoma. These factors negatively impact survival time and disease-free interval in dogs with this bone cancer.
Area of Science:
- Veterinary Oncology
- Canine Cancer Research
- Skeletal Tumors
Background:
- Appendicular osteosarcoma is the most common primary malignant bone tumor in dogs.
- Without adjuvant chemotherapy, median survival times (MST) are less than 5 months due to metastasis.
- Identifying prognostic factors aids in tailoring treatment for canine osteosarcoma.
Purpose of the Study:
- To systematically review and validate the scientific importance of prognostic factors for canine appendicular osteosarcoma.
- To identify key indicators at diagnosis that influence treatment strategies.
Main Methods:
- Systematic literature review of selected studies.
- Meta-analysis of prognostic factors including serum alkaline phosphatase (SALP), tumor location, and age.
- Qualitative analysis for age as a prognostic factor.
Main Results:
- Elevated SALP levels are a significant negative prognostic factor for survival time (ST) and disease-free interval (DFI).
- Proximal humeral tumor location is a significant negative prognostic factor for ST and DFI.
- Increasing age showed a trend towards shorter ST and DFI but lacked statistical significance due to limited data.
Conclusions:
- Elevated SALP and proximal humeral location are significant negative prognosticators for canine appendicular osteosarcoma.
- These findings can help guide adjuvant therapy decisions for affected dogs.
