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Figure 1.

Overall survival of patients treated by brachytherapy after treatment of recurrence.
Overall survival of patients treated by brachytherapy after treatment of recurrence.

Figure 2.

Incidence of distant metastases according to the type of treatment.
Incidence of distant metastases according to the type of treatment.

Figure 3.

Percentage of annual post-treatment melanoma specific mortality according to the type of treatment. *There was no peak in ruthenium treated patients < 60 years.
Percentage of annual post-treatment melanoma specific mortality according to the type of treatment. *There was no peak in ruthenium treated patients < 60 years.

Figure 4.

Linear regression analysis of melanoma related mortality per age decades, according to the type of treatment. Points represent percent mortality rate for the elapsed decade. No patient less than 40 years who was treated with Ru-106 died of melanoma.
Linear regression analysis of melanoma related mortality per age decades, according to the type of treatment. Points represent percent mortality rate for the elapsed decade. No patient less than 40 years who was treated with Ru-106 died of melanoma.

Univariate analysis of survival: all patients (N = 288)

nLRC (%)DFS (%)DSS (%)OS (%)
5 yrs10 yrsp5 yrs10 yrsp5 yrs10 yrsp5 yrs10 yrsp
All2889088-6550-76586846-
Ruthenium1277875716092798768
0.0000.0140.0000.000
Enucleation161100100604264425431
Men1428582615174616647
0.0260.6730.6470.952
Women1469593694978557046
< 60 years1508986745886688464
0.6480.0020.0000.000
≥ 60 years1389090564065475228

The characteristics of patients and tumours by treatment modality

Treatment
BrachytherapyEnucleationTotal
All patients130161291
Excluded3 palliations-3
Treated127161288
Gender
 Man5884142
 Women6977146
Age (median)
 Men58 (29-74)58 (19-86)
 Women60 (22-89)61 (23-92)
T-stage (AJCC)
 138
 269
 38
 No data12
Thickness
 < 3 mm11
 3.1-5.0 mm64
 5.1-7.2 mm49
 > 7.8 mm3
 No data0
Basal diameter
 ≤ 10 mm52
 10,1-12,0 mm38
 > 12 mm25
 No data12
Histology161
 Spindle cell33
 Epithelioid38
 Mixed23
 No data37

Multivariate analysis of survival of all patients (N = 288)

HR95% CIP
lowerupper
All patientsLRCFirst treatment40.8425.565299.7170.000
Gender2.6581.2455.6780.012
DFSFirst treatment1.6281.1442.3160.007
Age < 60 years vs. ≥ 60 years1.8001.2752.5400.001
DSSFirst treatment3.9372.5096.1780.000
Age < 60 years vs. ≥ 60 years2.5341.7143.7470.000
OSFirst treatment3.1532.2184.4800.000
Age < 60 years vs. ≥ 60 years3.8182.7105.3770.000
Gender2.3061.0135.2510.047
RutheniumLRC
Treatment time (≤ 96 h vs. > 96 h)2.8411.2206.6230.015
Treatment time (≤ 96 h vs. > 96 h)2.6741.2765.5870.009
DFSBase (< 11 mm vs. ≥ 11 mm)2.5191.0156.2500.046
T-stage2.3201.0025.3760.050
DSSAge (< 60 years vs. ≥ 60 years)4.7621.70913.3330.003
OSBase (< 11 mm vs v11 mm)3.6101.3919.4340.008
Age (< 60 years vs. ≥ 60 years)5.6502.53812.6580.000
NucleationLRC-----
DFSAge (< 60 years vs. ≥ 60 years)2.1321.1493.9680.016
Histology S VS E VS M1.4671.0002.1510.050
DSSAge (< 60 years vs. ≥ 60 years)2.3261.2294.4030.009
Histology S vs. E vs. M1.5551.0522.2980.027
OSAge (< 60 years vs. ≥ 60 years)3.8762.2226.7570.000
Histology (S vs. E vs. M)1.4441.0511.9830.023

Univariate analysis of survival: patients treated by brachytherapy (N = 127)

LRC (%)DFS (%)DSS (%)OS (%)
n5 yrs10 yrsp5 yrs10 yrsp5 yrs10 yrsp5 yrs10 yrsp
Men586660604990768767
0.0030.0390.7030.859
Women698987816993818870
< 60 years687671766698899883
0.3050.1560.0020.000
≥ 60 years598080655184657552
T-stage
 1387979736797849471
 26979740.45172570.35490750.37886720.508
 38604045458686050
Tumour thickness
 2-5.9 mm9783820.00374660.02192790.48986680.724
 6-.2 mm296454643996809670
Base
 < 11 mm6183830.043800.00296840.02496770.002
 ≥ 11 mm547064604587727864
Dose rate Top (Gy/h)
 ≥ 108 Gy5381780.30274660.09995840.28087720.690
 < 108 Gy527468684689728762
Dose- rate base (Gy/h)
 ≥ 5325382740.70874570.80495810.66587690.862
 < 532527471685589758765
Treatment time
 ≤ 96 hours5287840.01580720.00495840.40089740.565
 > 96 hours536862624089718560

Univariate analysis of survival: patients treated by enucleation (N = 161)None of enucleated patients had local recurrence; DFS = disease free survival; DSS = disease specific survival; n = number of patients; OS = overall survival; yrs = years

DFS (%)DSS (%)OS (%)
n5 yrs10 yrsp5y10 yrsp5 yrs10 yrsp
Men8462510.154635153340.775
Women77593365340,2755627
< 60 years8273520.001765274510.000
≥ 60 years79493050300.0003410
Spindle cell33747081726649
epithelioid3856360.05061330.02955240.026
Mixed cell23622867245215
eISSN:
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Journal Subjects:
Medicine, Clinical Medicine, Internal Medicine, Haematology, Oncology, Radiology