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Results for “Lymph Node Excision”

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At least 253 records · Page 14Linked to original sources
PubMed2001

Gamma-detecting probe used intraoperatively to locate the sentinel lymph node in patients with malignant melanoma.

OBJECTIVE: To assess the usefulness of lymphoscintigraphy and intraoperative gamma probe in the detection of sentinel lymph nodes. DESIGN: Prospective open study. SETTING: University hospital, Spain. SUBJECTS: 40 patients with malignant melanoma (24 stage I/II, 16 stage III). INTERVENTION: The day before operation a lymphoscintigram with 99mTc-nanocolloid was taken and the first lymph node identified was considered to be the sentinel node. A hand-held gamma probe was used for intraoperative mapping. MAIN OUTCOME MEASURE: Identification of the sentinel node. RESULTS: Sentinel nodes were identified in 39/40 patients (98%). In 24 patients with stage I/II disease, 34 sentinel nodes were found (6 invaded and 28 clear of melanoma). A total number of 161 regional lymph nodes were harvested, none of them invaded by melanoma. In 16 patients with stage III disease, 22 sentinel nodes were located (14 invaded and 8 clear of melanoma). A total of 89 regional lymph nodes were excised in patients with invaded sentinel nodes (44 of which were invaded and 45 clear of disease). 41 lymph nodes were excised from patients with clear sentinel nodes, and all were also clear of melanoma. CONCLUSIONS: We conclude that this is a useful technique for the selection of patients with melanoma who may require lymphadenectomy.

Adult↗
PubMed1979

Extrapelvic lymph node metastases in cervical carcinoma.

One hundred and fifty patients with invasive cervical carcinoma underwent preradiation therapy celiotomy and para-aortic node excision. The incidence of histologically documented metastases in these nodes was 33% (34/102) in Stage IIIB. The last 23 patients with positive para-aortic nodes had left sclanene node excision; nodes were positive in eight patients (34.8%). Sixteen patients had visceral metastases including 11 with small and large bowel metastases, two with liver metastases, and one with metastases to the liver and intestine. Pretreatment celiotomy with para-aortic lymph node excision and, where positive, followed by scalene lymph node excision is valuable in treatment planning in advanced cervical carcinoma limited to the pelvis.

Abdomen↗
PubMed2003

Association between extent of axillary lymph node dissection and patient, tumor, surgeon, and hospital factors in patients with early breast cancer.

BACKGROUND AND OBJECTIVES: Axillary lymph node dissection (ALND) in patients with breast cancer is crucial for accurate staging, provides excellent regional tumor control, and is included in the standard of care for the surgical treatment of breast cancer. However, the extent of ALND varies, and the extent of dissection and the number of lymph nodes that comprise an optimal axillary dissection are under debate. Despite conflicting evidence, several studies have shown that improved survival is correlated with more lymph nodes removed in both node-negative and node-positive patients. The purpose of this study is to determine which patient, tumor, surgeon, and hospital characteristics are associated with the number of nodes excised in early breast cancer patients. METHODS: A random sample of 938 women with node-negative breast cancer was drawn from the Ontario Cancer Registry and the data supplemented with chart reviews. The extent of axillary dissection was studied by examining the number of nodes examined in relation to the patient, tumor, surgeon, and hospital factors. RESULTS: The mean number of lymph nodes excised was 9.8 (SD = 4.8; range, 1-31), and 49% of patients had >/=10 nodes excised. Lower patient age was associated with the excision of more lymph nodes (>/=10 nodes: 63% of patients <40 years vs. 38% of patients >/=80 years). Surgeon academic affiliation and surgery in a teaching hospital were highly correlated with each other and were significantly associated with the excision of >/=10 nodes. The number of nodes excised was not associated with any tumor factors, nor with the breast operation performed. These results were confirmed with multivariable models. CONCLUSIONS: Even though the number of lymph nodes found in the pathologic specimen can be influenced by factors other than surgical technique (e.g., number of nodes present, specimen handling, and pathologic examination), this study shows significant variation of this variable and an association with several patient and surgeon/hospital factors. This variation and the association with survival warrant further study and effort at greater consistency.

Academic Medical Centers↗
PubMed2002

The role of sentinel lymph node biopsy for melanoma.

Regional lymph nodes are a common site of melanoma metastases, and the presence or absence of melanoma in regional lymph nodes is the single most important prognostic factor for predicting survival. Furthermore, identification of metastatic melanoma in lymph nodes and excision of these nodes may enhance survival in a subgroup of patients whose melanoma has metastasized only to their regional lymph nodes and not to distant sites. Sentinel lymph node (SLN) biopsy was developed as a low morbidity technique to stage the lymphatic basin without the potential morbidity of lymphedema and nerve injury. The presence or absence of metastatic melanoma in the SLN accurately predicts the presence or absence of metastatic melanoma in that lymph node basin. When performed by experienced centers, the false-negative rate of SLN biopsy is very low. As such, the nodal basin that contains a negative SLN will usually be free of microscopic disease. Since occult micrometastatic disease affects only 12% to 15% of patients with melanoma, selective SLN dissection allows up to 85% of patients with melanoma to be spared a formal lymph node dissection, thus avoiding the complications usually associated with that procedure. While standard pathologic evaluation of lymph nodes may miss metastatic melanoma cells, more sensitive techniques are developing which may identify micrometastases more accurately. The clinical significance of these micrometastases remains unknown and is the subject of active investigations.

Coloring Agents↗
PubMed2006

Do changes in lymph node status distribution explain trends in survival of breast cancer patients in Denmark?

We studied the impact on survival of changes in breast cancer patients' distribution by lymph node status at the time of diagnosis. Our study included breast cancer patients diagnosed from 1978 to 1994 in Denmark, where the treatment schemes for breast cancer patients were fairly stable, and where mammography screening was limited. We measured lymph node status by the proportion of positive lymph nodes of all excised lymph nodes, as assessed by a pathologist. This measure was available for two-thirds of the breast cancer patients. The outcome was 5-year relative survival. Changes in lymph node status distribution explained half of the improvement in 5-year relative survival, and seem to be the single most important cause behind the improved survival of breast cancer patients in Denmark.

Aged↗