TY - JOUR
T1 - Prospective neurocognitive function over 5 years after allogeneic hematopoietic cell transplantation for cancer survivors compared with matched controls at 5 years
AU - Syrjala, Karen L.
AU - Artherholt, Samantha B.
AU - Kurland, Brenda F.
AU - Langer, Shelby L.
AU - Roth-Roemer, Sari
AU - Elrod, Jo Ann Broeckel
AU - Dikmen, Sureyya
PY - 2011/6/10
Y1 - 2011/6/10
N2 - Purpose: Research has documented cognitive deficits both before and after high-dose treatment followed by allogeneic hematopoietic cell transplantation (HCT), with partial recovery by 1 year. This study prospectively examined the trajectory and extent of long-term cognitive dysfunction, with a focus on 1 to 5 years after treatment. Patients and Methods: Allogeneic HCT recipients completed standardized neuropsychological tests including information processing speed (Trail Making A and Digit Symbol Substitution Test), verbal memory (Hopkins Verbal Learning Test-Revised), executive function (Controlled Oral Word Association Test and Trail Making B), and motor dexterity and speed (Grooved Pegboard). Survivors (n = 92) were retested after 80 days and 1 and 5 years after transplantation. Case-matched controls (n = 66) received testing at the 5-year time point. A Global Deficit Score (GDS) summarized overall impairment. Response profiles were analyzed using linear mixed effects models. Results: Survivors recovered significant cognitive function from post-transplantation (80 days) to 5 years in all tests (P < .0001) except verbal recall (P > .06). Between 1 and 5 years, verbal fluency improved (P = .0002), as did executive function (P < .01), but motor dexterity did not (P > .15), remaining below controls (P < .0001) and more than 0.5 standard deviation below population norms. In GDS, 41.5% of survivors and 19.7% of controls had mild or greater deficits (NcNemar test = 7.04, P = .007). Conclusion: Although neurocognitive function improved from 1 to 5 years after HCT, deficits remained for more than 40% of survivors. Risk factors, mechanisms and rehabilitation strategies need to be identified for these residual deficits.
AB - Purpose: Research has documented cognitive deficits both before and after high-dose treatment followed by allogeneic hematopoietic cell transplantation (HCT), with partial recovery by 1 year. This study prospectively examined the trajectory and extent of long-term cognitive dysfunction, with a focus on 1 to 5 years after treatment. Patients and Methods: Allogeneic HCT recipients completed standardized neuropsychological tests including information processing speed (Trail Making A and Digit Symbol Substitution Test), verbal memory (Hopkins Verbal Learning Test-Revised), executive function (Controlled Oral Word Association Test and Trail Making B), and motor dexterity and speed (Grooved Pegboard). Survivors (n = 92) were retested after 80 days and 1 and 5 years after transplantation. Case-matched controls (n = 66) received testing at the 5-year time point. A Global Deficit Score (GDS) summarized overall impairment. Response profiles were analyzed using linear mixed effects models. Results: Survivors recovered significant cognitive function from post-transplantation (80 days) to 5 years in all tests (P < .0001) except verbal recall (P > .06). Between 1 and 5 years, verbal fluency improved (P = .0002), as did executive function (P < .01), but motor dexterity did not (P > .15), remaining below controls (P < .0001) and more than 0.5 standard deviation below population norms. In GDS, 41.5% of survivors and 19.7% of controls had mild or greater deficits (NcNemar test = 7.04, P = .007). Conclusion: Although neurocognitive function improved from 1 to 5 years after HCT, deficits remained for more than 40% of survivors. Risk factors, mechanisms and rehabilitation strategies need to be identified for these residual deficits.
UR - http://www.scopus.com/inward/record.url?scp=79959278762&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79959278762&partnerID=8YFLogxK
U2 - 10.1200/JCO.2010.33.9119
DO - 10.1200/JCO.2010.33.9119
M3 - Article
C2 - 21537032
AN - SCOPUS:79959278762
SN - 0732-183X
VL - 29
SP - 2397
EP - 2404
JO - Journal of Clinical Oncology
JF - Journal of Clinical Oncology
IS - 17
ER -