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The Influence of Age on Morbidity in Primary High Grade Sarcoma of the Extremity. K. Alektiar, M. Brennan, S. Singer Memorial Sloan-Kettering Cancer Center. Introduction: STS & Age. Wibmer C et al. Ann Oncol 2009. Local Recurrence & Age. Cahlon O et al. ASTRO 2008.
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The Influence of Age on Morbidity in Primary High Grade Sarcoma of the Extremity K. Alektiar, M. Brennan, S. Singer Memorial Sloan-Kettering Cancer Center
Introduction: STS & Age Wibmer C et al. Ann Oncol 2009
Local Recurrence & Age Cahlon O et al. ASTRO 2008
Use of RT and Older Age:MSKCC Data (n = 1459) Odds Ratio 95% CI p value Limb sparing surgery13 7-25 < 0.001 High grade3.6 2.4-4.7 < 0.001 Deep tumor 2.5 1.8-3.4 < 0.001 Size ≥ 5 cm2.21.7-2.9 < 0.001 Positive margin1.6 1.2-2.1 0.004 Age ≥ 700.6 0.5-0.9 0.005 Ashman et al. ASTRO 2006
Purpose To determine whether older age, defined as ≥ 70 years, influences morbidity in pts with primary HG extremity STS who received adjuvant RT at MSKCC
Patient Population • # of pts: 433 • Period: 8/82- 02/06 • Presentation: Primary, N0M0 • Mean age: 53 (range: 16-89) • Grade: High only • Deep: 89% (n = 387) • Size > 5 cm: 74% (n = 322) • Lower extremity: 72% (n = 310)
Extent of SurgeryAll pts had limb-sparing surgery at MSKCC ♠: Periosteal stripping/bone resection ♦: Neurolysis/nerve resection
RT TypeAll pts had their RT MSKCC *: Median dose Adjuvant chemotherapy: 139/433 (32%).
Distribution of Variables < 70 ≥ 70 p
Extent of Surgery & Age Groups ♠: Periosteal stripping/bone resection ♦: Neurolysis/nerve resection
RT Type & Age Groups:For the purpose of this analysis, BRT and BRT+EBRT were combined 0.18
RT “Conventional” Dose & Age GroupsConventional: BRT 45 Gy EBRT 60-70 Gy BRT+EBRT 15-20 and 45-50 Gy *: BRT and BRT+EBRT
MorbidityMedian F/U: 53 months ♠:Those with nerve resection were excluded
Morbidity & Age ♠:Those with nerve resection were excluded
Grade of Nerve Damage:(n = 377/433)♠ ♠:Those with nerve resection were excluded
Grade of Nerve♠ Damage & Age Groups ♠:Those with nerve resection were excluded
Conclusion • Older age (≥ 70 years) is not associated with increased morbidity from treatment with the exception of edema • Strategies to minimize the risk of edema are warranted • Withholding adjuvant RT solely based on older age, for fear of potential morbidity doesn’t seem to be justified
Influence of Age on BRT Morbidity ♠:Those with nerve resection were excluded
Influence of Age on EBRT Morbidity ♠:Those with nerve resection were excluded
Morbidity & Type of RT in < 70 ♠:Those with nerve resection were excluded
Morbidity & Type of RT in ≥ 70 ♠:Those with nerve resection were excluded