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2015 ; 94
(36
): e1433
Nephropedia Template TP
gab.com Text
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English Wikipedia
Nodal Basin Recurrence After Sentinel Lymph Node Biopsy for Melanoma: A
Retrospective Multicenter Study in 2653 Patients
#MMPMID26356697
Kretschmer L
; Bertsch HP
; Zapf A
; Mitteldorf C
; Satzger I
; Thoms KM
; Völker B
; Schön MP
; Gutzmer R
; Starz H
Medicine (Baltimore)
2015[Sep]; 94
(36
): e1433
PMID26356697
show ga
The objective of this study was to analyze different types of nodal basin
recurrence after sentinel lymph node biopsy (SLNB) for melanoma. PATIENTS AND
METHODS: Kaplan-Meier estimates and the Cox proportional hazards model were used
to study 2653 patients from 3 German melanoma centers retrospectively.The
estimated 5-year negative predictive value of SLNB was 96.4%. The estimated
false-negative (FN) rates after 1, 2, 3, 5, and 10 years were 2.5%, 4.6%, 6.4%,
8.7%, and 12.6%, respectively. Independent factors associated with false
negativity were older age, fewer SLNs excised, and head or neck location of the
primary tumor. Compared with SLN-positive patients, the FNs had a significantly
lower survival. In SLN-positive patients undergoing completion lymphadenectomy
(CLND), the 5-year nodal basin recurrence rate was 18.3%. The recurrence rates
for axilla, groin, and neck were 17.2%, 15.5%, and 44.1%, respectively.
Significant factors predicting local relapse after CLND were older age, head, or
neck location of the primary tumor, ulceration, deeper penetration of the
metastasis into the SLN, tumor-positive CLND, and >2 lymph node metastases. All
kinds of nodal relapse were associated with a higher prevalence of in-transit
metastases.The FN rate after SLNB steadily increases over the observation period
and should, therefore, be estimated by the Kaplan-Meier method. False-negativity
is associated with fewer SLNs excised. The beneficial effect of CLND on nodal
basin disease control varies considerably across different risk groups. This
should be kept in mind about SLN-positive patients when individual decisions on
prophylactic CLND are taken.