Management of primary, operable breast cancer in Victoria.

The study aimed to describe the surgical treatment in cases of primary, operable breast cancer in Victoria. All patients who were entered in a population-based cancer registry and who met the entry criteria over a six-month period were identified. In respect of each patient, the treating surgeon completed a questionnaire about patient characteristics, investigations, tumour description, surgery, radiotherapy and chemotherapy. For 716 eligible cases, 635 (89%) questionnaires were returned by 200 treating surgeons; this gave a mean rate of 6.3 breast-cancer patients per surgeon per year. Most (61%) surgeons treated one to four breast-cancer patients per year and only 4% of surgeons treated more than 20 breast-cancer patients each. Little systematic difference was found in the treatment approach that was adopted by the surgeons with heavy or light case-loads of patients with breast cancer. Twenty-two per cent of patients underwent breast-conserving operations. Virtually all the remainder underwent mastectomy, most commonly modified radical mastectomy.