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[Indications, technique, results and value of modified radical mastectomy].

Modified radical mastectomy is the most frequent operation performed for therapy of primary breast cancer. In T1 breast cancer patients the breast-conserving therapy is used in up to 40-60% of the patients. In T2 breast cancer patients modified radical mastectomy is still the most frequently used regimen (72-79%). Tumor, breast and psychological characteristics as well a technical facilities must be considered, when determining if modified radical mastectomy is indicated. The operation technique is presented.

Breast

[Radical mastectomy and modified radical mastectomy in the treatment of breast cancer. Indications and results].

We studied first the long term results in a series of 1 139 immediately operable breast cancers, treated by a protocol which gave an important role to extended radical mastectomy (radical mastectomy with internal mammary node dissection). No difference in survival was noted according to the surgical procedure used, and the extended mastectomy does not seem to have demonstrated its superiority. Its value could be judged in a more rigorous manner thanks to the results of an international therapeutic trial, comparing radical mastectomy with extended radical mastectomy. Results were improved by the extended procedure in only one sub-group of patients, whose tumours was located in central or inner quadrants, T1 or T2, with positive axillary nodes: these patients represents 13 per cent of patients with immediately operable tumors. Taking these results into account a new protocol has been adopted at the Institut Gustave-Roussy: T1 cancers will be the object of a therapeutic trial between conservative treatment and modified radical mastectomy. T2 (internal or central) cancers, with axillary nodal involvement will be treated by extended radical mastectomy. T2 tumors (external) and all T3 tumors will be treated by a modified radical mastectomy.

Breast Neoplasms

Glandular excision in total glandular mastectomy and modified radical mastectomy: a comparison.

Total glandular mastectomy and modified radical mastectomy were compared for the amount of breast tissue remaining after surgery. Multiple biopsies were taken from the anterior chest walls of women following total glandular mastectomy (N = 27) and modified radical mastectomy (N = 28) to try to detect any residual glandular tissue. Regardless of procedure performed, breast tissue was identified histologically in 5 percent of all biopsy specimens (159 and 161, respectively). One of every five operative fields was shown to have glandular elements in at least one of the biopsy sites; the positive biopsies did not form a discernible pattern. The residual breast tissue in each of these patients averaged less than 1 gm. On the basis of this study, modified radical mastectomy and total glandular mastectomy appear to be equally effective in removing most of the breast.

Biopsy

One-day hospitalization following modified radical mastectomy.

Postoperative management of patients following modified radical mastectomy has changed dramatically in recent years. Historically, patients usually remained in the hospital with closed suction drainage until the amount of drainage had decreased sufficiently for them to be removed. The feasibility of early discharge on the day following surgery was studied in a prospective manner in 29 consecutive breast cancer patients; 27 underwent unilateral modified radical mastectomy and 2 bilateral mastectomies by a single surgeon. All patients were instructed before surgery about planned early discharge and drain care. Twenty-seven of 29 patients (93.3%) were discharged the day following surgery. However, 2 patients refused discharge and were discharged on postoperative Day Two, and one patient was readmitted for confusion. Drains were removed in the office an average of 5.07 days after surgery. Forty-five per cent of patients developed a seroma that required aspiration at least once. No significant long-term sequela were experienced as a result of early discharge. The average hospital cost was reduced by $2,474.00 or 36 per cent (P less than 0.001) as compared to other surgeons in the same medical center who held to traditional postoperative care. The authors conclude that discharge on the day following surgery for patients undergoing a modified radical mastectomy is safe and cost effective.

Adult

A comparison of modified radical mastectomy to radical mastectomy in the treatment of operable breast cancer.

This study compares the results of modified radical mastectomy (144 cases) to radical mastectomy (188 cases) in the treatment of operable breast cancer. Two hundred five patients had Stage I breast cancer, 60 had Stage II disease and 67 had Stage III disease (TNM System). There was no statistically significant difference in five year survival when the results of a radical mastectomy were compared to a modified radical mastectomy at any stage of disease. There was no statistically significant difference in the incidence of local recurrence in patients with Stage I and Stage II disease when the results of a radical mastectomy were compared to modified radical mastectomy. Those patients with Stage III disease who were treated by a modified radical mastectomy had a statistically significant higher incidence of local recurrence (chest wall and axilla) in comparison to patients treated by radical mastectomy. We have concluded that a modified radical mastectomy is the treatment of choice in patients with Stage I and Stage II diseases. In patients with Stage III disease, a radical mastectomy provides a better chance of local control of the disease but offers no increased chance of survival.

Breast Neoplasms

[Modified radical mastectomy--an analysis of 217 cases].

Modified radical mastectomy (MRM) was performed in two hundred and seventeen patients with operable breast cancer during 1972-1982. Having been followed for 5 to 10 years, the results were compared with those of radical mastectomy (RM) during the same period. There was no significant difference in 5 and 10 year survival rates between the two groups. MRM had the advantages of insignificant deformity, better function and easy breast reconstruction in comparison with RM. The authors believe that MRM should be recommended as the treatment of choice for breast cancer.

Adenocarcinoma

Preventing relapses of breast cancer with modified radical mastectomy.

Better prevention and early detection have improved the percentage of early cancers among all the treated breast tumors to about 40%. After the first demonstration in Milan in 1981 that even conservative surgery can effectively prevent tumor relapses, radical and modified radical mastectomy was compared in 136 and 127 women, respectively. The groups were well stratified as regards age, menopause, T- and N-status. No difference was found in 10-yr survival (58.8 and 59.8%, respectively) or local relapses (9.5 and 10%, respectively) or general relapses. The median disease-free survival was 10 yr in both groups. The results suggest that in T1-T2a, N0-N1b M0 unilateral breast cancer relapses are prevented as effectively with modified radical as with radical mastectomy.

Adult

Treatment of carcinoma of the breast by modified radical mastectomy.

To evaluate the results of treatment of Stage I and Stage II-T1 and T2, NO and N1-carcinoma of the breast by modified radical mastectomy with preservation of the pectoralis major muscle, the survival rates of all such patients treated by the senior author from 1965 through 1968 were compared with the survival rates of a simultaneous group of patients with similar stage disease treated by conventional radical mastectomy by the same surgeon. There were a total of 134 patients, of whom 51 had modified radical mastectomy and 83 conventional radical mastectomy. The five year survival rate for those treated by standard radical mastectomy was 81 per cent, and for those treated by modified radical mastectomy, it was 84 per cent. In patients with histologically negative axillary lymph nodes, the rates were 86 per cent following both radical mastectomy and modified radical mastectomy. Four per cent of the surviving patients after modified radical mastectomy and 7 per cent of the five year survivors after radical mastectomy had evidence of metastases at five years. Locally recurrent disease was noted in 5 per cent of those who had modified radical mastectomy and 7 per cent of those who underwent standard radical mastectomy. This analysis demonstrates that there is no significant difference in the survival and recurrence rates after conventional radical mastectomy and ,odified radical mastectomy of the Patey type. There is a high incidence of recurrence-free survival after both of these operations. Since modified radical mastectomy is less traumatic, involving less damage to muscular tissues, and is followed by significantly decreased deformity, it is advised as the treatment of choice for patients with carcinoma of the breast having no or minimal evidence of axillary node involvement. More extensive tumors adherent to the pectoral fascia or associated with multiple or large palpable axillary nodes should still be treated by conventional radical mastectomy.

Adult

Early discharge after modified radical mastectomy.

Thirty-nine patients underwent modified radical mastectomy and were discharged with their suction drains and sutures in place after a mean postoperative stay of 4.7 days. Drains and sutures were removed at the first office visit. There were no infections, and late seromas developed in only 21 percent of the patients. Another group of patients were hospitalized until drainage effluent from their tubes was less than 30 ml/day, at which time the drains were removed and the patients discharged. This group had a mean postoperative stay of 9.5 days, and an incidence of late seroma of 43 percent. These data suggest it is both safe and effective to discharge patients 3 to 5 days after mastectomy at considerable potential cost savings due to the reduced hospital stay.

Adult

Contour restoration following simple or modified radical mastectomy.

With the increasing performance of modified radical mastectomy in the treatment of female breast cancer, satisfactory restoration of contour can be performed by a relatively simple procedure. In a large number of patients, this constitutes the optimal rehabilitation in the appropriate circumstances. It is hoped that with an increasing awareness of the possibility of this type of restoration, the procedure will be more widely applied.

Adult

Modified radical mastectomy.

This report describes our experience with a technique of modified radical mastectomy involving incision of the lower lateral fibers of the pectoralis major muscle and detachment of the origins of the pectoralis minor muscle. These maneuvers enable sufficient retraction of these muscles to provide excellent axillary exposure while minimizing the danger of traction injury to the neurovascular structures supplying these muscles. The operation has been performed in 20 patients; statistical analysis demonstrates at least as many nodes in these specimens compared to retrospective analysis of nodes recovered from 223 radical mastectomy specimens done during the previous 5 years. The final cosmetic results are superior to those obtained with standard radical mastectomy. These results suggest that this method of modified radical mastectomy should be considered, unless the proximity of the disease to the pectoralis muscles endangers the adequacy of the surgical margins.

Breast Neoplasms

Is modified radical mastectomy adequate for axillary lymph node dissection?

The effectiveness of axillary dissection by modified radical mastectomy was assessed by a comparison of the total axillary nodes removed by this operation to that by radical mastectomy. In a series of 121 consecutive radical mastectomies performed during the period of 1964 to 1969, we found that the number of axillary nodes removed ranged from 3 to 63 with a median of 22 and a mean of 23.4 per patient. In a subsequent series of 111 consecutive modified radical mastectomies performed between 1969 and 1973, the total axillary nodes removed ranged from 6 to 77 with a median of 24 and mean of 25.7 nodes in each mastectomy specimen. These results strongly suggest that axillary dissection in modified radical mastectomy is as complete as that in the Halsted radical mastectomy.

Axilla

Single-stage subcutaneous breast-prosthesis implantation and modified radical mastectomy for invasive carcinoma.

In eighteen patients modified radical mastectomy for invasive carcinoma was immediately followed by breast reconstruction. The prosthesis was placed subcutaneously. There were no infections and no definitively lost prostheses. One prosthesis had to be replaced subpectorally after 55 days due to a small skin necrosis occurring after radiotherapy. One hematoma had to be evacuated and one small skin necrosis was excised and sutured per primam. There were no local recurrences but the follow-up is short (3 years and 4 months). Postoperative radio- and chemotherapy were not affected by the reconstruction.

Adult

[A role of interpectoral (Rotter's) lymph node dissection in modified radical mastectomy for breast cancer].

To study the influence of interpectoral lymph node (IPN) dissection on the prognosis of patients who underwent modified radical mastectomy, IPN was carefully dissected and studied pathologically on 168 cases of our breast cancer patients operated with modified radical mastectomy. There were 1.2 lymph nodes on an average in the interpectoral region, and they were almost 1-2mm in diameter. IPN metastases were found in 10 cases. (Tis: 0%, Stage I: 4.9%, Stage II: 5.7%, Stage III: 13%). Tumors located in outer quadrant in almost all these cases. Positive IPN were found in 6 (16%) of n1 alpha group, 1 (10%) of n1 beta group, and in 3 (50%) of n2 group. All these 3 cases of n2 died of distant metastasis and local recurrence. Two (1.7%) of axillary node (1a, 1b) negative patients had microinvolvement of cancer only in IPN, and are currently disease-free. These data suggest that IPN metastasis may occur even in the early breast cancer patients, and that may be controllable by lymph node excision. Therefore, routine and careful dissection of IPN through wide opening of sulcus interpectoralis is necessary for modified radical mastectomy and even for breast preserving operation.

Adult

Evaluation of dissection of the axilla in modified radical mastectomy.

Fifty consecutive unselected patients with infiltrating carcinoma of the breast underwent radical mastectomy in two consecutive stages. The initial operation was a modified radical mastectomy, with preservation of the pectoral muscles, and the second stage, a procedure to transform the initial operation into a standard radical mastectomy. An analysis of the location and the number of the lymph nodes recovered in the two stage operation shows that a so-called modified radical mastectomy is inadequate to ensure the clearing of the axilla. Lymph nodes were recovered at the second stage of the operation in 36 patients, and seven of these patients had metastasis. Modified radical mastectomy was effective in erradicating the lymph nodes of the lower part of the axilla but inadequate for lymph nodes at levels II and III and, especially, the interpectoral lymph nodes.

Adult

A new method of modified radical mastectomy for breast cancer.

We have developed a new type of modified radical mastectomy, the method and clinical results of which are reported herein. In this operation, axillary dissection is performed by the following two approaches. Firstly, the axillary contents are dissected from the highest possible subclavicular point to the pectoralis minor muscle, after partially cutting the sternocostal origin of the pectoralis major muscle. The second approach is from the posterior aspect of the pectoralis minor muscle to the lateral portion of the latissimus dorsi muscle. Parasternal dissection can also be performed for stage II and IIIa cancers with a central or medial tumor. After lymph node dissection, the detached edge of the sternocostal origin of the pectoralis major muscle is resutured to cover the parasternal region. Thus, complete dissection of the axillary nodes is performed whilst preserving the pectoralis major and pectoralis minor muscles. Good clinical results were achieved with respect to radicality, cosmetic effects and function in 28 patients with stage I, II, and IIIa breast cancers who were followed up for between 5 to 8 years. This new operation may therefore be adopted for the majority of patients with Stage I, II, or IIIa cancers, unless massive infiltration into the pectoralis major muscle has occurred. Preservation of both the pectoralis major and pectoralis minor muscles results in a good cosmetic appearance, good functioning of the arm and easy reconstruction of the breast following mastectomy.

Adult

Are modified radical mastectomies done for T1 breast cancers because of surgeon's advice or patient's choice?

Clinical trials show that T1 breast cancers are equally well treated with breast-conserving surgery as with modified radical mastectomy. However, the Colorado Central Cancer Registry indicates that, for the past 5 years, the majority of women (72%) with T1 breast cancer in Colorado have undergone modified radical mastectomies. A questionnaire was sent to 175 general surgeons to determine the reasons for the high number of modified radical mastectomies still being performed. The results indicate that one group of surgeons (34% of those responding) believes each type of surgery has equal survival rates but unknowingly influences the patient to choose modified radical mastectomy, with a subtly biased presentation. Education of both surgeons and patients is needed to increase the number of patients with T1 breast lesions who can benefit from breast-conserving therapy.

Attitude of Health Personnel

Modified radical mastectomy with immediate breast reconstruction.

The authors reviewed 100 consecutive patients with breast cancer treated by modified radical mastectomy and immediate breast reconstruction in order to assess the safety and efficacy of this procedure in terms of cancer control. The study began in 1978 and is continuing. The procedure involves a two-team approach with both the general surgeon and the plastic surgeon interviewing the patient preoperatively. Virtually all breast reconstruction involved the use of a submuscular silicone saline type of implant. The median follow-up is 36 months. Slightly over half of these cases were Stage 0 or Stage I. There have been eight recurrences, including five local or regional and three distant. No patient has died of her disease at this point. Cosmesis was equal to or superior to that seen in delayed breast reconstruction. There have been no hidden recurrences. Postoperative depression has been significantly less. We conclude that modified radical mastectomy with immediate breast reconstruction is a safe and effective alternative to modified radical mastectomy alone.

Adult