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ELECTROCHEMOTHERAPY - STATISTICS.

ECT is applied in three ways: sole, adjuvant or intra-operative therapy. The mode used depends on the site and extent of the tumour. In the graphs below the disease-free survivals of 211 patients are shown. Vertical drops mark recurrences, small vertical lines indicate latest report without recurrence for individual patients. The graphs can be enlarged by clicking on them.

Sole therapy

Where surgery is not possible or has unacceptable functional or cosmetic sequelae and where the tumour is small enough, ECT can be used alone. This was used in 86 cases in all. The graph below shows disease-free survival.

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All adjuvant treated

Where surgery had been performed but the histopathology report showed that there was tumour tissue at the margins of tissue removed, ECT was applied about 2 weeks post-op. This was carried out in 62 cases.

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Intra-operative use

Where tumours were relatively large, the bulk of the tumour was removed surgically and ECT was applied to the operation site and margins before suturing. There was often, but not always, some wound breakdown in these cases. There were 63 of these cases in all to date.

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Individual tumours

Canine mast cell tumours

All but one canine mast cell cases had grade 2 tumours. Many were in difficult site such as the paw, muzzle or perianal. 63 patients were treated for mast cell tumours, some had multiple tumours treated.

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Squamous cell carcinomas

39 patients were treated for SCC in various sites.

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Spindle cell tumours

Fibrosarcomas, haemangiopericytomas, nerve sheath tumours and soft tissue sarcomas can be bundled with spindle cell tumours. 82 patients had this class of tumours.

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The mean follow-up period for the cases is 684.4206 days (0-2973 days)

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