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The surgical management of primary invasive breast cancer.

The treatment of operable primary breast cancer has evolved dramatically in the past few decades. The standard operative procedure has changed from the radical mastectomy to the modified radical mastectomy, and the use of breast-conserving treatment is increasing. This article reviews trends in treatment of early-stage breast cancer, factors associated with increased risk for local recurrence after breast-conserving treatment, and the use of axillary lymph node dissection.

Adult↗

The oncologic risks of skin preservation at mastectomy when combined with immediate reconstruction of the breast.

Most oncologic surgeons agree that removal of the nipple, the areola and any recent scar at the site of the biopsy is necessary during a mastectomy for treatment of carcinoma of the breast. There is less agreement about what should be done with the remaining uninvolved mammary skin. Its preservation facilitates the performance of immediate reconstruction of the breast and can lead to improved aesthetic results, but many oncologists fear that this practice could lead to an increased incidence of local tumor recurrence. To determine if that fear was justified, 87 patients who had undergone unilateral or bilateral mastectomy with immediate reconstruction for treatment of early carcinoma of the breast were studied. Preservation of uninvolved skin was used in all instances. All patients had a documented follow-up study of 12 months or more; the average follow-up time was 23.1 months. One peripheral local recurrence was observed. This 1.2 per cent rate of early local recurrence is lower than that reported from several series using modified radical mastectomy without skin preservation or immediate reconstruction, and suggests that skin preservation does not confer additional risks of local recurrence of carcinoma of the breast in properly selected patients.

Breast Neoplasms↗

[Consequences of after-care in colorectal cancer].

Results of a computer supported follow-up-program on patients with colorectal cancer are presented. Between 1978 and 1985 1024 patients underwent these program, the drop-out-rate was 18%. 231 recurrences in 137 patients were discovered (40% local recurrence, 30% liver metastases and 30% others). 54% of patients with local recurrence and 43% with liver metastases were free of symptoms. Radical surgery was performed in 47% of local recurrences and in 24% of liver metastases. The three year survival rate after radical surgery for recurrence amounted to 28% for local recurrences and to 31% for liver metastases.

Colonic Neoplasms↗

[Immediate breast reconstruction following mastectomy for carcinoma].

Analysis of the psychic situation of the women after mastectomy. Most surgeons are against an immediate reconstruction of the breast, because the comparison to conditions before the amputation is usually too negative. The main argument against immediate reconstruction is the local recurrence which occurs in the first 6 postoperative months in 75% of the cases. In stage 0, no local recurrences were observed. If a mastectomy is performed in this stage, immediate reconstruction can be done. In stage 1 the number of local recurrences is 5% in the first postoperative months. In elected cases, if it is the expressed wish of the patient immediate reconstruction can be discussed. In stage 2 the local recurrence rate is already 13,8%. In this stage, an immediate reconstruction is out of the question.

Breast↗

[Occult tumor cells of malignant melanoma and consequences for surgical treatment].

UNLABELLED: Immediate and complete surgical excision is the standard mode of treatment for primary malignant melanoma. There is still a controversy about the adequate resection margins. In this study we looked for microscopic satellites in order to estimate the extent of local therapy. METHOD: 19 patients with malignant melanoma of the trunk or extremities, treated by wide excision, were included. Clinical courses were documented. Postoperative follow-up was 1.4 years in the mean. In primary tumours and cutaneous excisions we looked for microscopic satellites with routine histology and immunohistochemistry (APAAP-technique, monoclonal antibody HMB-45). RESULTS: Using APAAP-technique in combination with routine histology, we could show that microscopic satellites only occurred in specimens of melanomas of more than 5 mm thickness. In the two cases where evident microscopic satellites were present a systemic dissemination obviously evolved already before the first surgical treatment. Therefore, in those cases wide resection margins do not provide an increasing chance of survival. CONCLUSION: The idea to remove microscopic satellites by wide surgical excisions and thus to reduce the risk for systemic dissemination and local recurrence cannot be supported.

Aged↗

Local excision of rectal cancer: what is the evidence?

PURPOSE: Although local excision of rectal cancers is a less morbid alternative to radical resection, its role as a curative procedure is unclear. The role of adjuvant therapy after local excision is also controversial. This review aims to examine current evidence on local excision of rectal cancers and how it fits into the management algorithm for rectal cancer. METHODS: A literature review was undertaken through the MEDLINE database and by cross-referencing previous publications, thus identifying 41 studies on curative local excision of rectal cancer published in English. Details of preoperative staging, surgical procedures, adjuvant therapy, follow-up, and outcome measures, including complications, survival data, recurrences, and salvage were examined. RESULTS: Preoperative staging of rectal cancers is variable. Digital rectal examination and computerized tomography are used in most studies. Endorectal ultrasound is used in some patients in 9 of 41 studies. Local excision preserves anorectal function, and seems to have limited morbidity (0-22 percent). Local excision alone is associated with local recurrences in 9.7 (range, 0-24) percent of T1, 25 (range, 0-67) percent of T2 and 38 (range, 0-100) percent of T3 cancers. The addition of adjuvant chemoradiotherapy after local excision yields local recurrence rates of 9.5 (range, 0-50) percent for T1, 13.6 (range, 0-24) percent for T2, and 13.8 (range, 0-50) percent for T3 cancers. Data on local excision after preoperative chemoradiotherapy for tumor down staging are limited. Factors other than T-stage that lead to higher local recurrence rates after local excision include poor histologic grade, the presence of lymphovascular invasion, and positive margins. Local recurrences after local excision can be surgically salvaged (84 of 114 patients in 15 studies), with a disease-free survival rates between 40 and 100 percent at a follow-up of 0.1 to 13.5 years. CONCLUSIONS: Local excision for rectal cancers is associated with a low morbidity and provides satisfactory local control and disease-free survival rates for T1 rectal cancers. There is, however, a need for a randomized, controlled trial for T2 cancers, comparing local excision with adjuvant chemoradiotherapy to radical resection.

Algorithms↗

Results of intersphincteric resection of the rectum with direct coloanal anastomosis for rectal carcinoma.

Between 1977 and 1987, 519 patients underwent operation for rectal carcinoma. Sixty-three patients underwent intersphincteric resection with direct coloanal anastomosis (CAA), and 77 had an abdominoperineal resection (APR). Curative surgery was achieved in 57 and 65 patients, respectively. Both groups were comparable regarding age, stage of tumors, and localization of tumors. During the mean period of 6.7 years (range: 3 to 13.6 years), all patients were examined according to a predefined follow-up plan. From those patients with curative surgery, 11% presented with pelvic recurrence and 33% with distant metastases after coloanal anastomosis; the rates of recurrence and distant metastases after APR were 17% and 35%, respectively. The corrected 5-year survival rates were 62% following CAA and 53% following APR. Eighty-five percent of the patients with CAA reported good functional results regarding anal continence. Our study demonstrates that the intersphincteric resection with CAA is a valuable surgical technique for rectal carcinoma with the benefit of preservation of continence. It is suitable for neoplasms with high- and medium-grade differentiation (G1 to G2) and a localization that allows a minimum distal clearence of 3 cm.

Abdominal Muscles↗

Brachytherapy for non-small cell lung cancer and selected neoplasms of the chest.

This article reviews the indications, techniques, and results of brachytherapy in the treatment of non-small cell lung cancer (NSCLC) and selected chest neoplasms. Various isotopes and techniques are used to place radioactive sources directly into a tumor, tumor bed, or the chest. Brachytherapy techniques can be tailored to the clinical situation and can be in the form of permanent interstitial volume or planar implants (radioactive sources permanently imbedded into the tumor or tumor bed) or in the form of temporary interstitial or endoluminal implants (where radioactive sources irradiate a tumor bed over a certain length of time and then are removed). These treatments can be delivered over a short interval (high-dose rate [HDR]) or over a more protracted time (low-dose rate). HDR treatments can be used intraoperatively to deliver a large dose of radiation to a determined target area with selective sparing of surrounding normal structures. Different methods of delivering HDR intraoperative radiation are under investigation. Most reports on brachytherapy for chest malignancies are retrospective and come from a few single institutions. Most of the published data relate to the treatment of NSCLC, but other intrathoracic malignancies, such as malignant pleural mesothelioma and malignant thymoma, have been treated with brachytherapy. To our knowledge, no major randomized trials accurately assess or confirm these retrospective studies yet, complicating the interpretation of these results. Nevertheless, brachytherapy is of value in selected situations and offers the clinician and the patient an innovative method of delivering conformal high-dose radiation to a defined target with preferential sparing of normal surrounding structures. With continued innovations in the development of radioactive isotopes, computerized treatment planning and targeting, and source delivery, brachytherapy should continue to offer an attractive alternative and complement to conventional treatment approaches, and may offer patients improved local control and survival.

Brachytherapy↗

[The adequate operation, an essential element of interdisciplinary cancer therapy].

Operative treatment plays a dominant role in our effort for cancer control. The results, e.g. in breast cancer, cancer of the stomach and colon, malignant melanoma, malignant teratoma of the testicle, mixed tumours of the salivary glands, and sarcomas of soft tissues demonstrate that local tumour relapses and/or local metastases may be avoided by adequate, sufficiently radical operative techniques.

Female↗

[Intraoperative radiotherapy in 1997].

Intra Operative Radiation Therapy (IORT) has been routinely used for the past 20 years. It is a feasible treatment, with a reasonable cost and an acceptable acute and late toxicity. There is so far no strong randomized trial demonstrating that IORT can improve overall survival. Nevertheless, in many institutions it is recognized as an efficient treatment in selected patients. In case of locally recurrent disease an incomplete gross resection is often the only choice; IORT in such a situation has led to very encouraging results. For locally advanced deep seated primary tumors IORT seems to improve local control. In the near future IORT should be used on a larger and stronger basis. The manufacturing of new mobile linac should allow more surgeons to perform IORT and to conduct clinical trials to confirm the present indications in cancers with high local malignancy.

Combined Modality Therapy↗

Local recurrence of gastric adenocarcinomas after gastrectomy.

A study of 257 gastric cancer patients treated with gastrectomy and followed to their death showed that (a) the incidence of local recurrence in the field of gastrectomy was 25%; (b) from the three types of gastrectomy used, extended total gastrectomy resulted in the lowest incidence of recurrence, followed by subtotal and total; (c) recurrences were more common in patients with TNM stages I, II, and III tumors where extended total gastrectomy was proven superior (p less than 0.05); (d) early stage tumors tended to recur in the gastric remnant and the esophagus; (e) narrow surgical margins and margins involved by disease predisposed to recurrence; (f) not every patient with histologically invaded margins developed recurrence; (g) the risk of recurrence did not decrease with time; (h) the longer the disease-free interval the better the prognosis; (i) the more advanced the original lesion the longer the disease-free interval; (j) of all patients with recurrence only 19% had resectable lesions on reexploration; (k) the longer the disease-free interval the higher the resectability rate; (l) the median interval from recurrence to death was 2 months; (m) the same interval of those undergoing resection was 18 months. Patients with early-stage tumors treated with gastrectomy should be followed closely for local recurrence and should recurrence develop they should be reexplored if there is no evidence of metastasis.

Adenocarcinoma↗

Does local surgery have a role in the management of stage IV breast cancer?

AIMS: There are no uniformly agreed guidelines regarding the treatment of local breast cancer in patients who have stable metastatic disease. The aim of this study was to define the role of breast surgery in the management of stage IV disease by reviewing the clinical outcome in patients with stage IV disease submitted to surgery in a regional breast cancer unit. METHODS: All patients who underwent breast surgery from 1993 to 1999 and had known metastatic disease or who were diagnosed with metastases within one month of surgery were identified and their clinical outcome was studied using death and local recurrence as end points. RESULTS: Median survival after breast surgery was 23 months. Ten of the 20 patients were alive with no local disease at 20 months mean follow-up. Three of 10 patients who died developed local recurrence and had local disease at the time of death. CONCLUSION: The local surgery does have a role in controlling the primary cancer and controlling local symptoms in a selected group of patients with stable metastatic disease.

Breast Neoplasms↗

Blood transfusion and recurrence of colorectal cancer: the role of platelet derived growth factors.

Efforts to explain the possible effects of blood transfusion on the recurrence of colorectal cancer have been based entirely on the immunosuppressive effects of blood transfusion. However, the relationship between solid tumour development and the immune system is inconclusive. We have investigated an alternative mechanism involving the potential role of growth factors in this phenomenon. Using a human fibroblast: [125I]deoxyuridine uptake mitogenesis assay, the relative amounts of growth factor in the plasma of stored blood were measured. There was a progressive increase in mitogenesis from day 0 (n = 6) to day 28 (n = 6; P less than 0.001, Mann-Whitney U test). The effect of growth factors on the development of liver and intraperitoneal metastases was studied in Hooded Lister rats. Following an intraportal injection of 10(5) MC28 tumour cells, the experimental group (n = 25) received 2 ml of syngeneic serum intravenously for 4 days. Likewise, colonic anastomoses were performed on omentectomized rats and the peritoneal cavity seeded with 10(3) cells. The experimental groups (n = 20) received either 2 ml serum intravenously repeatedly or 3 ml serum intraperitoneally (n = 19). There was no significant increase in liver metastases or peritoneal disease following intravenous infusion of serum but serum delivered intraperitoneally resulted in a significant increase in tumour from 22 per cent in the controls to 89 per cent in the study group (P less than 0.01). Growth factors released from platelets following blood loss into the peritoneal cavity may be important in enhancing local recurrence of colorectal cancer.

Anastomosis, Surgical↗

Clinical value of whole-body positron emission tomography with [18F]fluorodeoxyglucose in recurrent colorectal cancer.

To assess the clinical value of whole-body positron emission tomography (PET) with [18F]fluorodeoxyglucose (FDG) in recurrent colorectal cancer, 35 patients were studied: 15 had resectable liver metastases, one a resectable lung metastasis, eight resectable pelvic recurrence, eight a presacral mass with equivocal findings on imaging, and three increasing serum levels of carcinoembryonic antigen (CEA) without clinical or radiological signs of recurrent disease. PET affected management decisions in seven of 16 patients with metastatic disease. In one of eight patients with pelvic recurrence demonstrated by computed tomography (CT), PET detected unknown pulmonary metastases. In five of eight presacral masses with equivocal CT findings, PET was correct and unexpected distant metastases were detected in one of these patients. In two of three patients with increasing CEA levels and normal pelvic CT findings, pelvic recurrence was identified. Overall, whole-body PET affected management in 14 patients. PET is a valuable tool for staging local recurrence and metastatic disease.

Aged↗

Irrigation does not dislodge or destroy tumor cells adherent to the tumor bed.

Local recurrences in the surgical bed after tumor resection may be due to residual tumor cells "dropping" into the wound. Irrigation with water is often used to remove these cells. We designed experiments to determine whether irrigation would prevent tumor recurrence. Surgical wounds of uniform size in C57BL/6 mice were seeded with 5 x 10(2), 5 x 10(3), 5 x 10(4), 5 x 10(5), or 5 x 10(6) viable syngeneic B16-F10 melanoma cells to test the hypothesis that irrigation with water would decrease local tumor recurrence. The tumor-contaminated wounds were irrigated with distilled water or with saline (0.9% NaCl) immediately or 5, 30, 60, 120, or 240 min after seeding. Control wounds were seeded but not irrigated. The technique of irrigation was altered in a second group of experiments such that the amount of time the tumor cells were exposed to the water or saline was 5, 10, or 15 min. To determine the rapidity and durability of tumor cell attachment to host tissue, 1 x 10(4) viable B16-F10 tumor cells were seeded in vitro onto freshly cut disks of syngeneic mouse dermis. The tissue was irrigated with saline or distilled water 0, 2, 5, 10, 15, 30, 60, 120, or 240 min later. Tumor growth was observed in all the mice and neither the mechanical action of irrigation nor the hypotonic effect of distilled water changed the rate of growth. Scanning electron microscopy (SEM) demonstrated stable and firm attachment to mouse tissue within seconds of seeding with no noticeable dislodgement or cytotoxicity by either saline or water irrigation. The data suggest that the commonly used technique of irrigating the bed of the resected tumor may not be of value in preventing local recurrences.

Animals↗

Long-term results of breast conserving surgery for stages I and II breast cancer: experiences at Osaka Medical Center for Cancer and Cardiovascular Diseases.

PURPOSE: The purpose of this study is to summarize the long-term results of breast conserving surgery (BCS) for Japanese patients with stage I and II breast cancer at a single institute and to identify risk factors for local recurrence after BCS. PATIENTS AND METHODS: Between October 1986 and June 2000, 979 women underwent BCS with or without radiation therapy (RT). Overall survival, disease free survival and local recurrence rates were calculated by the Kaplan-Meier method. Risk factors for local recurrence were examined by multivariate analysis using the Cox proportional regression model. RESULTS: The 10-year overall survival rates were 90.9% for the surgery and radiation therapy (RT group) and 89.3% for the surgery only group with a median follow-up time of 46 months. The 10-year disease free survival rates were 85.1% in the RT group and 69.2% in the surgery only group (p=0.0001). The positive margin rate was 14.1% (138/979). The 10-year overall survival rate of the patients with positive margins was 87.9%, compared with 90.8% for patients with negative margins (N.S.). The cumulative incidence of local recurrence at 10 years was significantly lower in the RT group (7.2% ) than in the surgery only group (27.5% ) (p<0.0001). Multivariate analysis showed that positive margins and lack of post-operative irradiation or adjuvant endocrine therapy were risk factors for non-inflammatory local recurrence. CONCLUSIONS: Our study indicates that BCS can be performed for Japanese women with early breast cancer. The margin status and post-operative irradiation had no influence on overall survival while but were significantly related to local recurrence.

Adult↗

Histopathological and cell biological characteristics of ductal carcinoma in situ (DCIS) of the breast-a comparison between the primary DCIS and subsequent ipsilateral and contralateral tumours.

The rate of ipsilateral local recurrence after ductal carcinoma in situ (DCIS) varies (between 5% and 30%) and depends on the type of operation (mastectomy vs. breast-conserving operation), and whether postoperative radiotherapy has been used. Ipsilateral local recurrence can either emanate from the primary lesion or be a new primary tumour. Contralateral lesions may also develop after DCIS. We compared histopathological and cell biological characteristics in 37 subsequent ipsilateral tumours (25 DCIS and 12 invasive cancers) and 13 subsequent contralateral invasive breast cancers with their corresponding primary DCIS. The histopathological parameters were re-evaluated and the cell biological factors were analysed using conventional immunohistochemical techniques in paraffin-embedded material. The concordance rate for high grade (nuclear grade 3) vs. non-high grade (nuclear grades 1+2) between the primary DCIS and the subsequent ipsilateral tumour was higher than between the primary DCIS and the subsequent contralateral invasive cancer (68% vs. 31%). Similar patterns in the concordance rates between the primary DCIS and ipsilateral vs. contralateral tumours were also found in the oestrogen receptor status (83% vs. 50%) and the progesterone receptor status (87% vs. 58%). The pattern persisted in the other factors examined (p53, c-erbB2, bcl-2 and Ki67), although it was less pronounced. The overall high rate of concordance in the characteristics between the primary DCIS and the subsequent ipsilateral tumours suggests that, in most cases, they represent true local recurrences. Subsequent contralateral tumours are more likely to be new primary cancers.

Breast Neoplasms↗