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1.
Open Vet J ; 11(1): 100-106, 2021.
Article in English | MEDLINE | ID: mdl-33898290

ABSTRACT

Background: Electrochemotherapy (ECT) combines the administration of anticancer drugs with the delivery of electric pulses, thus increasing the drug uptake through the cell membranes, resulting in increased efficacy. Aim: The aim of our study was to describe the tolerability and efficacy of ECT alone or in association with other treatment modalities for the management of apocrine gland anal sac adenocarcinoma (AGASAC). Methods: Medical records of dogs with a diagnosis of AGASAC that were treated with ECT alone or in combination with surgery/chemotherapy were retrospectively evaluated. Each dog received 20 mg/m2 of bleomycin intravenously. Based on the clinician's decision, the primary tumor or tumor bed was also infiltrated with cisplatin at the dose of 0.5 mg/cm2. Trains of permeabilizing biphasic electric pulses were then applied under general anesthesia. Results: Ten dogs were enrolled in the study. Of those 10 dogs, only one received ECT for treatment of microscopic local disease, while in six cases ECT was the only treatment modality. In three dogs, ECT was followed by systemic medical treatment. Six dogs (60%) had a partial response (PR), three dogs (30%) had stable disease, and one dog treated for microscopic disease did not show any sign of local relapse for 305 days after treatment, being still alive and in complete remission at the time of writing this article. The median time to progression was 303 days and the median survival time was 365 days. The treatment was well tolerated and local side effects were minimal. No systemic effects were documented. Conclusion: This preliminary study suggests that ECT may be beneficial for dogs with AGASAC and could be a useful addition to the current therapeutic options in consideration of its low cost, limited toxicity, and ease of administration.


Subject(s)
Adenocarcinoma/veterinary , Anal Gland Neoplasms/therapy , Dog Diseases/therapy , Electrochemotherapy/veterinary , Sebaceous Gland Neoplasms/veterinary , Adenocarcinoma/therapy , Anal Sacs/drug effects , Anal Sacs/pathology , Animals , Apocrine Glands/drug effects , Apocrine Glands/pathology , Dogs , Electrochemotherapy/statistics & numerical data , Female , Male , Retrospective Studies , Sebaceous Gland Neoplasms/therapy
2.
Animals (Basel) ; 11(4)2021 Apr 13.
Article in English | MEDLINE | ID: mdl-33924625

ABSTRACT

Mammary gland tumors are the most common canine neoplasms. They account for 25-50% of all tumors diagnosed in bitches. Metastases and recurrences develop in about 35-70% of bitches following excision. The presence of regional lymph node metastases is a relevant factor affecting prognosis and treatment in cases of mammary gland tumors. The sentinel lymph node (SLN) is the first lymph node (or nodes) in the regional lymphatic basin that receives lymphatic flow from the primary neoplasm. The aim of this study is to investigate the SLN with indirect lymphography for a mammary tumor in dogs. The knowledge of the precise drainage pattern and SLN of the neoplastic mammary glands would provide clinically relevant information to the surgeon and to the oncologist, and it would be of high importance for the surgeon not only for performing the most adequate surgical excision but also for determining an accurate post-surgical prognosis.

3.
Open Vet J ; 11(4): 755-763, 2021.
Article in English | MEDLINE | ID: mdl-35070873

ABSTRACT

BACKGROUND: Quality of life (QoL) is an essential factor in therapeutic decision-making for human patients and is commonly used as an endpoint in clinical trials of cancer treatments. AIM: To compare owners' perception of QoL in canine and feline patients affected by different tumor histotypes treated with single-agent or multidrug protocols. METHODS: Owners were asked to assess the impact on QoL of their pets undergoing chemotherapy treatment by answering a questionnaire and assigning a score to different health-related parameters reported to affect QoL. RESULTS: Questionnaires of 101 patients (85 dogs and 16 cats), collected at different time points, were analyzed. Fifty-seven patients were given single-agent chemotherapy (carboplatin, doxorubicin, lomustine, melphalan, mitoxantrone, vinblastine, and vinorelbine), whereas 44 were given multiple-agent treatment. When diverse factors including chemotherapy treatment type (single-agent vs. multidrug regimens) and the onset and kind of adverse effects were considered, no significant variations in owners' perceptions of their pets' QoL were discovered. CONCLUSION: Chemotherapy type (single-agent vs. multidrug protocol) and related adverse events are shown, which did not influence owners' perception of their pet's QoL.Future prospective studies should look into clinical characteristics that might affect QoL, such as the patient's age, tumor stage, and protocol purpose (curative vs. palliative).


Subject(s)
Cat Diseases , Dog Diseases , Neoplasms , Animals , Cat Diseases/drug therapy , Cats , Dog Diseases/drug therapy , Dogs , Humans , Neoplasms/drug therapy , Neoplasms/veterinary , Ownership , Prospective Studies , Quality of Life
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