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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 J+Clin+Oncol
2014 ; 32
(34
): 3810-6
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Preservation of memory with conformal avoidance of the hippocampal neural
stem-cell compartment during whole-brain radiotherapy for brain metastases (RTOG
0933): a phase II multi-institutional trial
#MMPMID25349290
Gondi V
; Pugh SL
; Tome WA
; Caine C
; Corn B
; Kanner A
; Rowley H
; Kundapur V
; DeNittis A
; Greenspoon JN
; Konski AA
; Bauman GS
; Shah S
; Shi W
; Wendland M
; Kachnic L
; Mehta MP
J Clin Oncol
2014[Dec]; 32
(34
): 3810-6
PMID25349290
show ga
PURPOSE: Hippocampal neural stem-cell injury during whole-brain radiotherapy
(WBRT) may play a role in memory decline. Intensity-modulated radiotherapy can be
used to avoid conformally the hippocampal neural stem-cell compartment during
WBRT (HA-WBRT). RTOG 0933 was a single-arm phase II study of HA-WBRT for brain
metastases with prespecified comparison with a historical control of patients
treated with WBRT without hippocampal avoidance. PATIENTS AND METHODS: Eligible
adult patients with brain metastases received HA-WBRT to 30 Gy in 10 fractions.
Standardized cognitive function and quality-of-life (QOL) assessments were
performed at baseline and 2, 4, and 6 months. The primary end point was the
Hopkins Verbal Learning Test-Revised Delayed Recall (HVLT-R DR) at 4 months. The
historical control demonstrated a 30% mean relative decline in HVLT-R DR from
baseline to 4 months. To detect a mean relative decline ? 15% in HVLT-R DR after
HA-WBRT, 51 analyzable patients were required to ensure 80% statistical power
with ? = 0.05. RESULTS: Of 113 patients accrued from March 2011 through November
2012, 42 patients were analyzable at 4 months. Mean relative decline in HVLT-R DR
from baseline to 4 months was 7.0% (95% CI, -4.7% to 18.7%), significantly lower
in comparison with the historical control (P < .001). No decline in QOL scores
was observed. Two grade 3 toxicities and no grade 4 to 5 toxicities were
reported. Median survival was 6.8 months. CONCLUSION: Conformal avoidance of the
hippocampus during WBRT is associated with preservation of memory and QOL as
compared with historical series.