Unilateral Spatial Neglect
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Introduction
Unilateral spatial neglect (USN) is one of the disabling features of a stroke, and is defined as a failure to attend to the side opposite a brain lesion. Clinically, the presence of severe USN is apparent when a patient often collides into his/her surroundings, ignores food on one side of the plate, and attends to only one side of his/her body. Many terms are used interchangeably in the literature to describe USN, such as unilateral neglect, hemi-inattention, visual neglect and hemi spatial neglect. It is estimated that as many as 30% of patients experience USN following a stroke.
A client with USN is unable to attend to either one side of his/her body (personal neglect), the space within reaching distance (near extrapersonal neglect), the space beyond reaching distance (far extrapersonal neglect), or to a combination of these three spaces in the environment. USN continues to be commonly associated with a right stroke, but evidence from the literature suggests that all patients with stroke might benefit from USN screening.
The presence of USN has been strongly associated with an increased risk for injury and with poor functional outcomes. The effects of USN extend beyond the basic skills for self-care (bathing, dressing, walking, etc.) to instrumental activities of daily living (IADL) that are crucial for successful reintegration into community life.
Typically, right hemisphere patients with left neglect omit elements to their left when copying simple objects (A), drawing a clock face (B), and cancelling targets among distractors (C). They also tend to err to the right when asked to bisect a horizontal line (D). When asked to name objects in their surroundings, they will tend to name only those on the right. Crosses in (E) mark the locations of reported objects with respect to the patient.
Parton, A et al. J Neurol Neurosurg Psychiatry 2004;75:13-21 reproduced with permission from the BMJ Publishing Group
Authors*: Anita Menon, MSc; Anita Petzold, BSc OT; Nicol Korner-Bitensky, PhD OT.
*high quality = PEDro score 6-10
*fair quality = PEDro score 4-5
*poor quality = PEDro score ≤ 3
The PEDro scale was developed by the Physiotherapy Evidence Database to determine the quality of clinical trials. The PEDro scale consists of a checklist of 10 scored yes-or-no questions pertaining to the internal validity and the statistical information provided. Please click on the link for more information: http://www.pedro.org.au/english/downloads/pedro-scale/
A randomized controlled trial (RCT) is an experimental design in which subjects are randomly assigned to a treatment group, or to a control (no treatment or alternative treatment) group. Effects of the experimental treatment are then compared statistically to results of the control treatment to determine effectiveness.
Patients between 1-6 months post-stroke are identified as in sub-acute stage of recovery.
Patients longer than 6 months post-stroke are identified as in chronic stage of recovery.
| 1a (Strong) | Well-designed meta-analysis, or 2 or more high quality RCTs (PEDro ≥ 6) showing similar findings |
| 1b(Moderate) | 1 RCT of high quality (PEDro ≥ 6) |
| 2a (Limited) | At least 1 fair quality RCT (PEDro = 4-5) |
| 2b (Limited) | At least one poor quality RCT (PEDro < 4) or well-designed non-experimental study (non-randomized controlled trial, quasi-experimental studies, cohort studies with multiple baselines, single subject series with multiple baselines, etc.) |
| 3(Consensus) | Agreement by an expert panel or a group of professionals in the field or a number of pre-post studies all with similar results |
| 4 (Conflicting) | Conflicting evidence of 2 or more equally well-designed studies |
| 5 (No evidence) | No well-designed studies - only case studies/case descriptions or cohort studies/single subject series with no multiple baselines) |
*high quality = PEDro score 6-10
*fair quality = PEDro score 4-5
*poor quality = PEDro score ≤ 3
The PEDro scale was developed by the Physiotherapy Evidence Database to determine the quality of clinical trials. The PEDro scale consists of a checklist of 10 scored yes-or-no questions pertaining to the internal validity and the statistical information provided. Please click on the link for more information: http://www.pedro.org.au/english/downloads/pedro-scale/
A randomized controlled trial (RCT) is an experimental design in which subjects are randomly assigned to a treatment group, or to a control (no treatment or alternative treatment) group. Effects of the experimental treatment are then compared statistically to results of the control treatment to determine effectiveness.
| 1a (Strong) | Well-designed meta-analysis, or 2 or more high quality RCTs (PEDro ≥ 6) showing similar findings |
| 1b(Moderate) | 1 RCT of high quality (PEDro ≥ 6) |
| 2a (Limited) | At least 1 fair quality RCT (PEDro = 4-5) |
| 2b (Limited) | At least one poor quality RCT (PEDro < 4) or well-designed non-experimental study (non-randomized controlled trial, quasi-experimental studies, cohort studies with multiple baselines, single subject series with multiple baselines, etc.) |
| 3(Consensus) | Agreement by an expert panel or a group of professionals in the field or a number of pre-post studies all with similar results |
| 4 (Conflicting) | Conflicting evidence of 2 or more equally well-designed studies |
| 5 (No evidence) | No well-designed studies - only case studies/case descriptions or cohort studies/single subject series with no multiple baselines) |
*high quality = PEDro score 6-10
*fair quality = PEDro score 4-5
*poor quality = PEDro score ≤ 3
The PEDro scale was developed by the Physiotherapy Evidence Database to determine the quality of clinical trials. The PEDro scale consists of a checklist of 10 scored yes-or-no questions pertaining to the internal validity and the statistical information provided. Please click on the link for more information: http://www.pedro.org.au/english/downloads/pedro-scale/
A randomized controlled trial (RCT) is an experimental design in which subjects are randomly assigned to a treatment group, or to a control (no treatment or alternative treatment) group. Effects of the experimental treatment are then compared statistically to results of the control treatment to determine effectiveness.
Patients between 1-6 months post-stroke are identified as in sub-acute stage of recovery.
Patients longer than 6 months post-stroke are identified as in chronic stage of recovery.
| 1a (Strong) | Well-designed meta-analysis, or 2 or more high quality RCTs (PEDro ≥ 6) showing similar findings |
| 1b(Moderate) | 1 RCT of high quality (PEDro ≥ 6) |
| 2a (Limited) | At least 1 fair quality RCT (PEDro = 4-5) |
| 2b (Limited) | At least one poor quality RCT (PEDro < 4) or well-designed non-experimental study (non-randomized controlled trial, quasi-experimental studies, cohort studies with multiple baselines, single subject series with multiple baselines, etc.) |
| 3(Consensus) | Agreement by an expert panel or a group of professionals in the field or a number of pre-post studies all with similar results |
| 4 (Conflicting) | Conflicting evidence of 2 or more equally well-designed studies |
| 5 (No evidence) | No well-designed studies - only case studies/case descriptions or cohort studies/single subject series with no multiple baselines) |
| 1a (Strong) | Well-designed meta-analysis, or 2 or more high quality RCTs (PEDro ≥ 6) showing similar findings |
| 1b(Moderate) | 1 RCT of high quality (PEDro ≥ 6) |
| 2a (Limited) | At least 1 fair quality RCT (PEDro = 4-5) |
| 2b (Limited) | At least one poor quality RCT (PEDro < 4) or well-designed non-experimental study (non-randomized controlled trial, quasi-experimental studies, cohort studies with multiple baselines, single subject series with multiple baselines, etc.) |
| 3(Consensus) | Agreement by an expert panel or a group of professionals in the field or a number of pre-post studies all with similar results |
| 4 (Conflicting) | Conflicting evidence of 2 or more equally well-designed studies |
| 5 (No evidence) | No well-designed studies - only case studies/case descriptions or cohort studies/single subject series with no multiple baselines) |
*high quality = PEDro score 6-10
*fair quality = PEDro score 4-5
*poor quality = PEDro score ≤ 3
The PEDro scale was developed by the Physiotherapy Evidence Database to determine the quality of clinical trials. The PEDro scale consists of a checklist of 10 scored yes-or-no questions pertaining to the internal validity and the statistical information provided. Please click on the link for more information: http://www.pedro.org.au/english/downloads/pedro-scale/
A randomized controlled trial (RCT) is an experimental design in which subjects are randomly assigned to a treatment group, or to a control (no treatment or alternative treatment) group. Effects of the experimental treatment are then compared statistically to results of the control treatment to determine effectiveness.
Patients between 1-6 months post-stroke are identified as in sub-acute stage of recovery.
| 1a (Strong) | Well-designed meta-analysis, or 2 or more high quality RCTs (PEDro ≥ 6) showing similar findings |
| 1b(Moderate) | 1 RCT of high quality (PEDro ≥ 6) |
| 2a (Limited) | At least 1 fair quality RCT (PEDro = 4-5) |
| 2b (Limited) | At least one poor quality RCT (PEDro < 4) or well-designed non-experimental study (non-randomized controlled trial, quasi-experimental studies, cohort studies with multiple baselines, single subject series with multiple baselines, etc.) |
| 3(Consensus) | Agreement by an expert panel or a group of professionals in the field or a number of pre-post studies all with similar results |
| 4 (Conflicting) | Conflicting evidence of 2 or more equally well-designed studies |
| 5 (No evidence) | No well-designed studies - only case studies/case descriptions or cohort studies/single subject series with no multiple baselines) |
*high quality = PEDro score 6-10
*fair quality = PEDro score 4-5
*poor quality = PEDro score ≤ 3
The PEDro scale was developed by the Physiotherapy Evidence Database to determine the quality of clinical trials. The PEDro scale consists of a checklist of 10 scored yes-or-no questions pertaining to the internal validity and the statistical information provided. Please click on the link for more information: http://www.pedro.org.au/english/downloads/pedro-scale/
*high quality = PEDro score 6-10
*fair quality = PEDro score 4-5
*poor quality = PEDro score ≤ 3
The PEDro scale was developed by the Physiotherapy Evidence Database to determine the quality of clinical trials. The PEDro scale consists of a checklist of 10 scored yes-or-no questions pertaining to the internal validity and the statistical information provided. Please click on the link for more information: http://www.pedro.org.au/english/downloads/pedro-scale/
A randomized controlled trial (RCT) is an experimental design in which subjects are randomly assigned to a treatment group, or to a control (no treatment or alternative treatment) group. Effects of the experimental treatment are then compared statistically to results of the control treatment to determine effectiveness.
Patients longer than 6 months post-stroke are identified as in chronic stage of recovery.
Patients between 1-6 months post-stroke are identified as in sub-acute stage of recovery.
Patients less than a month post-stroke are identified as in acute stage of recovery.
| 1a (Strong) | Well-designed meta-analysis, or 2 or more high quality RCTs (PEDro ≥ 6) showing similar findings |
| 1b(Moderate) | 1 RCT of high quality (PEDro ≥ 6) |
| 2a (Limited) | At least 1 fair quality RCT (PEDro = 4-5) |
| 2b (Limited) | At least one poor quality RCT (PEDro < 4) or well-designed non-experimental study (non-randomized controlled trial, quasi-experimental studies, cohort studies with multiple baselines, single subject series with multiple baselines, etc.) |
| 3(Consensus) | Agreement by an expert panel or a group of professionals in the field or a number of pre-post studies all with similar results |
| 4 (Conflicting) | Conflicting evidence of 2 or more equally well-designed studies |
| 5 (No evidence) | No well-designed studies - only case studies/case descriptions or cohort studies/single subject series with no multiple baselines) |
| 1a (Strong) | Well-designed meta-analysis, or 2 or more high quality RCTs (PEDro ≥ 6) showing similar findings |
| 1b(Moderate) | 1 RCT of high quality (PEDro ≥ 6) |
| 2a (Limited) | At least 1 fair quality RCT (PEDro = 4-5) |
| 2b (Limited) | At least one poor quality RCT (PEDro < 4) or well-designed non-experimental study (non-randomized controlled trial, quasi-experimental studies, cohort studies with multiple baselines, single subject series with multiple baselines, etc.) |
| 3(Consensus) | Agreement by an expert panel or a group of professionals in the field or a number of pre-post studies all with similar results |
| 4 (Conflicting) | Conflicting evidence of 2 or more equally well-designed studies |
| 5 (No evidence) | No well-designed studies - only case studies/case descriptions or cohort studies/single subject series with no multiple baselines) |
*high quality = PEDro score 6-10
*fair quality = PEDro score 4-5
*poor quality = PEDro score ≤ 3
The PEDro scale was developed by the Physiotherapy Evidence Database to determine the quality of clinical trials. The PEDro scale consists of a checklist of 10 scored yes-or-no questions pertaining to the internal validity and the statistical information provided. Please click on the link for more information: http://www.pedro.org.au/english/downloads/pedro-scale/
A randomized controlled trial (RCT) is an experimental design in which subjects are randomly assigned to a treatment group, or to a control (no treatment or alternative treatment) group. Effects of the experimental treatment are then compared statistically to results of the control treatment to determine effectiveness.
Patients between 1-6 months post-stroke are identified as in sub-acute stage of recovery.
| 1a (Strong) | Well-designed meta-analysis, or 2 or more high quality RCTs (PEDro ≥ 6) showing similar findings |
| 1b(Moderate) | 1 RCT of high quality (PEDro ≥ 6) |
| 2a (Limited) | At least 1 fair quality RCT (PEDro = 4-5) |
| 2b (Limited) | At least one poor quality RCT (PEDro < 4) or well-designed non-experimental study (non-randomized controlled trial, quasi-experimental studies, cohort studies with multiple baselines, single subject series with multiple baselines, etc.) |
| 3(Consensus) | Agreement by an expert panel or a group of professionals in the field or a number of pre-post studies all with similar results |
| 4 (Conflicting) | Conflicting evidence of 2 or more equally well-designed studies |
| 5 (No evidence) | No well-designed studies - only case studies/case descriptions or cohort studies/single subject series with no multiple baselines) |
| 1a (Strong) | Well-designed meta-analysis, or 2 or more high quality RCTs (PEDro ≥ 6) showing similar findings |
| 1b(Moderate) | 1 RCT of high quality (PEDro ≥ 6) |
| 2a (Limited) | At least 1 fair quality RCT (PEDro = 4-5) |
| 2b (Limited) | At least one poor quality RCT (PEDro < 4) or well-designed non-experimental study (non-randomized controlled trial, quasi-experimental studies, cohort studies with multiple baselines, single subject series with multiple baselines, etc.) |
| 3(Consensus) | Agreement by an expert panel or a group of professionals in the field or a number of pre-post studies all with similar results |
| 4 (Conflicting) | Conflicting evidence of 2 or more equally well-designed studies |
| 5 (No evidence) | No well-designed studies - only case studies/case descriptions or cohort studies/single subject series with no multiple baselines) |
Patients less than a month post-stroke are identified as in acute stage of recovery.
*high quality = PEDro score 6-10
*fair quality = PEDro score 4-5
*poor quality = PEDro score ≤ 3
The PEDro scale was developed by the Physiotherapy Evidence Database to determine the quality of clinical trials. The PEDro scale consists of a checklist of 10 scored yes-or-no questions pertaining to the internal validity and the statistical information provided. Please click on the link for more information: http://www.pedro.org.au/english/downloads/pedro-scale/
A randomized controlled trial (RCT) is an experimental design in which subjects are randomly assigned to a treatment group, or to a control (no treatment or alternative treatment) group. Effects of the experimental treatment are then compared statistically to results of the control treatment to determine effectiveness.
| 1a (Strong) | Well-designed meta-analysis, or 2 or more high quality RCTs (PEDro ≥ 6) showing similar findings |
| 1b(Moderate) | 1 RCT of high quality (PEDro ≥ 6) |
| 2a (Limited) | At least 1 fair quality RCT (PEDro = 4-5) |
| 2b (Limited) | At least one poor quality RCT (PEDro < 4) or well-designed non-experimental study (non-randomized controlled trial, quasi-experimental studies, cohort studies with multiple baselines, single subject series with multiple baselines, etc.) |
| 3(Consensus) | Agreement by an expert panel or a group of professionals in the field or a number of pre-post studies all with similar results |
| 4 (Conflicting) | Conflicting evidence of 2 or more equally well-designed studies |
| 5 (No evidence) | No well-designed studies - only case studies/case descriptions or cohort studies/single subject series with no multiple baselines) |
Patients between 1-6 months post-stroke are identified as in sub-acute stage of recovery.
Patients longer than 6 months post-stroke are identified as in chronic stage of recovery.
| 1a (Strong) | Well-designed meta-analysis, or 2 or more high quality RCTs (PEDro ≥ 6) showing similar findings |
| 1b(Moderate) | 1 RCT of high quality (PEDro ≥ 6) |
| 2a (Limited) | At least 1 fair quality RCT (PEDro = 4-5) |
| 2b (Limited) | At least one poor quality RCT (PEDro < 4) or well-designed non-experimental study (non-randomized controlled trial, quasi-experimental studies, cohort studies with multiple baselines, single subject series with multiple baselines, etc.) |
| 3(Consensus) | Agreement by an expert panel or a group of professionals in the field or a number of pre-post studies all with similar results |
| 4 (Conflicting) | Conflicting evidence of 2 or more equally well-designed studies |
| 5 (No evidence) | No well-designed studies - only case studies/case descriptions or cohort studies/single subject series with no multiple baselines) |
| 1a (Strong) | Well-designed meta-analysis, or 2 or more high quality RCTs (PEDro ≥ 6) showing similar findings |
| 1b(Moderate) | 1 RCT of high quality (PEDro ≥ 6) |
| 2a (Limited) | At least 1 fair quality RCT (PEDro = 4-5) |
| 2b (Limited) | At least one poor quality RCT (PEDro < 4) or well-designed non-experimental study (non-randomized controlled trial, quasi-experimental studies, cohort studies with multiple baselines, single subject series with multiple baselines, etc.) |
| 3(Consensus) | Agreement by an expert panel or a group of professionals in the field or a number of pre-post studies all with similar results |
| 4 (Conflicting) | Conflicting evidence of 2 or more equally well-designed studies |
| 5 (No evidence) | No well-designed studies - only case studies/case descriptions or cohort studies/single subject series with no multiple baselines) |
Likert scaling is one type of response to items in a questionnaire or tool. For example, Likert scaling would have you rate an item such as "I am satisfied with the care I received" on a scale using a 1-to-5 response scale where:
•1 = strongly disagree
•2 = disagree
•3 = undecided
•4 = agree
•5 = strongly agree
You will find various options and scaling methods for the number of response choices (1-to-7, 1-to-9, 0-to-4). Odd-numbered scales usually have a middle value that is labelled Neutral or Undecided. Some tools used forced-choice Likert scaling with an even number of responses and no middle neutral or undecided choice.
A randomized controlled trial (RCT) is an experimental design in which subjects are randomly assigned to a treatment group, or to a control (no treatment or alternative treatment) group. Effects of the experimental treatment are then compared statistically to results of the control treatment to determine effectiveness.
| 1a (Strong) | Well-designed meta-analysis, or 2 or more high quality RCTs (PEDro ≥ 6) showing similar findings |
| 1b(Moderate) | 1 RCT of high quality (PEDro ≥ 6) |
| 2a (Limited) | At least 1 fair quality RCT (PEDro = 4-5) |
| 2b (Limited) | At least one poor quality RCT (PEDro < 4) or well-designed non-experimental study (non-randomized controlled trial, quasi-experimental studies, cohort studies with multiple baselines, single subject series with multiple baselines, etc.) |
| 3(Consensus) | Agreement by an expert panel or a group of professionals in the field or a number of pre-post studies all with similar results |
| 4 (Conflicting) | Conflicting evidence of 2 or more equally well-designed studies |
| 5 (No evidence) | No well-designed studies - only case studies/case descriptions or cohort studies/single subject series with no multiple baselines) |
Patients between 1-6 months post-stroke are identified as in sub-acute stage of recovery.