Adam de Havenon1, Laura Heitsch2, Abimbola Sunmonu3, Robynne Braun4, Keith R Lohse5, John W Cole4, Eva Mistry6, Arne Lindgren7, Bradford B Worrall3, Steven C Cramer8. 1. Department of Neurology, University of Utah, Salt Lake City, UT. Electronic address: adam.dehavenon@hsc.utah.edu. 2. Department of Emergency Medicine, Washington University, St. Louis, MO. 3. Department of Neurology, University of Virginia, Charlotteville, VA. 4. Department of Neurology, University of Maryland, College Park, MD. 5. Department of Neurology, University of Utah, Salt Lake City, UT. 6. Department of Neurology, Vanderbilt University, Nashville, TN. 7. Section of Neurology, Skåne University Hospital, Scania, Sweden; Department of Clinical Sciences, Neurology, Lund University, Lund, Sweden. 8. Department of Emergency Medicine, University of California Los Angeles, Los Angeles, CA; California Rehabilitation Institute, Los Angeles, CA.
Abstract
OBJECTIVE: To develop a simple and effective risk score for predicting which stroke patients will have persistent impairment of upper extremity motor function at 90 days. DESIGN: Post hoc analysis of clinical trial patients hospitalized with acute ischemic stroke who were followed for 90 days to determine functional outcome. SETTING: Patient were hospitalized at facilities across the United States. PARTICIPANTS: We created a harmonized cohort of individual patients (N=1653) from the NINDS tPA, ALIAS part 2, IMS-III, DEFUSE 3, and FAST-MAG trials. We split the cohort into balanced derivation and validation samples. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: The primary outcome was persistent arm impairment, defined as a National Institutes of Health Stroke Scale (NIHSS) arm domain score of 2 to 4 at 90 days in patients who had a 24-hour NIHSS arm score of 1 or more. We used least absolute shrinkage and selection operator regression to determine the elements of the persistent upper extremity impairment (PUPPI) index, which we validated as a predictive tool. RESULTS: We included 1653 patients (827 derivation, 826 validation), of whom 803 (48.6%) had persistent arm impairment. The PUPPI index gives 1 point each for age 55 years or older and NIHSS values of worse arm (4), worse leg (>2), facial palsy (3), and total NIHSS (≥10). The optimal cutpoint for the PUPPI index was 3 or greater, at which the area under the curve was greater than 0.75 for the derivation and validation cohorts and when using NIHSS values from either 24 hours or in a subacute or discharge time window. Results were similar across different levels of stroke severity. CONCLUSION: The PUPPI index uses readily available information to accurately predict persistent upper extremity motor impairment at 90 days poststroke. The PUPPI index can be administered in minutes and could be used as inclusion criterion in recovery-related clinical trials or, with additional development, as a prognostic tool for patients, caregivers, and clinicians.
OBJECTIVE: To develop a simple and effective risk score for predicting which stroke patients will have persistent impairment of upper extremity motor function at 90 days. DESIGN: Post hoc analysis of clinical trial patients hospitalized with acute ischemic stroke who were followed for 90 days to determine functional outcome. SETTING: Patient were hospitalized at facilities across the United States. PARTICIPANTS: We created a harmonized cohort of individual patients (N=1653) from the NINDS tPA, ALIAS part 2, IMS-III, DEFUSE 3, and FAST-MAG trials. We split the cohort into balanced derivation and validation samples. INTERVENTIONS: Not applicable. MAIN OUTCOME MEASURES: The primary outcome was persistent arm impairment, defined as a National Institutes of Health Stroke Scale (NIHSS) arm domain score of 2 to 4 at 90 days in patients who had a 24-hour NIHSS arm score of 1 or more. We used least absolute shrinkage and selection operator regression to determine the elements of the persistent upper extremity impairment (PUPPI) index, which we validated as a predictive tool. RESULTS: We included 1653 patients (827 derivation, 826 validation), of whom 803 (48.6%) had persistent arm impairment. The PUPPI index gives 1 point each for age 55 years or older and NIHSS values of worse arm (4), worse leg (>2), facial palsy (3), and total NIHSS (≥10). The optimal cutpoint for the PUPPI index was 3 or greater, at which the area under the curve was greater than 0.75 for the derivation and validation cohorts and when using NIHSS values from either 24 hours or in a subacute or discharge time window. Results were similar across different levels of stroke severity. CONCLUSION: The PUPPI index uses readily available information to accurately predict persistent upper extremity motor impairment at 90 days poststroke. The PUPPI index can be administered in minutes and could be used as inclusion criterion in recovery-related clinical trials or, with additional development, as a prognostic tool for patients, caregivers, and clinicians.
Authors: Laura Malmut; Chen Lin; Nina Srdanovic; Masha Kocherginsky; Richard L Harvey; Shyam Prabhakaran Journal: Am J Phys Med Rehabil Date: 2020-04 Impact factor: 2.159
Authors: Jeffrey L Saver; Sidney Starkman; Marc Eckstein; Samuel J Stratton; Franklin D Pratt; Scott Hamilton; Robin Conwit; David S Liebeskind; Gene Sung; Ian Kramer; Gary Moreau; Robert Goldweber; Nerses Sanossian Journal: N Engl J Med Date: 2015-02-05 Impact factor: 91.245
Authors: Cathy M Stinear; Winston D Byblow; Suzanne J Ackerley; P Alan Barber; Marie-Claire Smith Journal: Stroke Date: 2017-03-09 Impact factor: 7.914
Authors: Eline C C van Lieshout; Ingrid G van de Port; Rick M Dijkhuizen; Johanna M A Visser-Meily Journal: Top Stroke Rehabil Date: 2020-03-09 Impact factor: 2.119
Authors: Shyam Prabhakaran; Eric Zarahn; Claire Riley; Allison Speizer; Ji Y Chong; Ronald M Lazar; Randolph S Marshall; John W Krakauer Journal: Neurorehabil Neural Repair Date: 2007-08-08 Impact factor: 3.919