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J C Machiavello

Publications and source records attributed to J C Machiavello.

5 recordsLinked to original sources

Non-specifically labelled cells that simulate bone marrow metastases in patients with non-metastatic breast cancer.

AIMS: To determine whether the presence of disseminated bone marrow tumour cells at diagnosis is a prognostic factor for breast cancer patients at high risk of recurrence or bone metastasis, and to assess their presence as a criterion for evaluation of the potential benefits of adjuvant chemotherapy. METHODS: Multiple bone marrow aspirates from 72 breast cancer patients free from metastasis were obtained during surgery at the time of diagnosis and were tested immunologically by alkaline phosphatase antialkaline phosphatase technique with a panel of three antiepithelial monoclonal antibodies (MoAb) KL1, EMA, and HMFG2. RESULTS: In nine of 72 patients, with each MoAb tested, numerous strongly positive cells always isolated were observed. However, it was demonstrated that these cells were non-specifically labelled and could be found in normal controls. CONCLUSIONS: There was no evidence of marrow tumour cells in 72 operable breast cancer patients. It is suggested that published results may be greatly overestimated and that non-specific labelling may be undetected. More specific MoAb should be found and a correlation with molecular biology should be performed if this criterion is to be considered as a prognostic factor.

Adult↗

[A comparative study of 4 sequential first-line chemotherapy protocols in locally advanced breast cancer].

Between 1977 and 1994, our center administered successively 4 different chemotherapy regimens to 242 evaluable patients with locally advanced breast cancer. Patients with inflammatory signs were excluded. Sixty-eight patients were treated by AVCF (A (adriamycine) + V (vincristine) + C (cytoxan) + F (5FU)), 47 by AECF (A + E (vindesine) + C + F), 81 by CAFP (C + A + F + P (prednisone)) and 46 by AN (A + N (vinorelbine)). The mean number of cycle was 3. One hundred and twenty-five patients (52.5%) responded to chemotherapy and we recorded 35 complete response (14.7%). The response rates at the different combinations were respectively: AVCF: 29.4%, AECF: 53.2%, CAFP: 64.9%, AN: 65.2%, and were independent of tumor size, grade and receptor status. The response rate at the AVCF regimen was significantly worse than the others (p = 0.0005). Breast conserving surgery was performed in 31 patients (14%) and 17 patients (8%) had a complete response. Among the 35 patients with complete response, 21 were treated by radiotherapy alone. Local recurrence occurred in 19 patients (7.9%) and 96 (40%) had advanced disease. The mean follow-up of AVCF regimen was 150 months, 115 months for AECF, 111 for CAFP and 42 months for AN. The disease-free survival and the overall survival were significantly better with AECF, CAFP and AN regimens (DFS p < 0.04, OS p < 0.02). Survival was better in those patients with an objective response (p = 0.002) or with non-affected axillary node at the time of surgery. Our study showed already that AVCF combination was significantly lower than AECF, CAFP, AN in terms of response rate, disease-free survival and overall survival. Waiting the results of randomized studies about the impact of neoadjuvant chemotherapy on survival, we look for chemotherapy regimen improving the rate of conservative surgery.

Adult↗

[Conservative treatment of epidermoid cancer of the anal canal combining radiotherapy and curietherapy. Experience at the Antoine-Lacassagne Center].

From 1973 to 1987, 33 patients aged from 46 to 86 years (25 female, 8 male) were treated for a tumour of the anal canal with radiotherapy and curietherapy. Tumour distribution was 7 T1, 19 T2, 7 T3, and 4 patients were N+. After treatment it was possible to assess 31 patients; 29 were in complete remission, remission was obtained in 2 others following surgery. Tolerance was comparable to other series but 4 patients developed necrosis of the anal canal; 2 patients died under general anesthesia and 1 patient had a radiation injury of the small intestine. The sphincter was conserved in 65 p. cent of cases. Relapse occurred in 8 patients within 6-92 months, and 6 patients developed metastases. Overall survival was 78 p. cent at 3 years and 74 p. cent at 5 and 10 years. Disease-free survival was 65 p. cent at 3 and 5 years and 52 p. cent at 10 years. Our results confirm those of other series using a similar treatment plan. This treatment is difficult to put into practice. Patients must be carefully selected preferably by a team including proctologist, surgeon and radiotherapist.

Aged↗