A Direct Catalytic Synthesis of Sodium Diarylphosphinates and Their Corresponding Acids from Sodium Phosphinate

Widely available, hazard-free sodium phosphinate directly furnishes sodium diarylphosphinates and their corresponding acids in yields up to 86 % by using Pd-catalysis. This versatile method tolerates moieties such as keto and carboxyl, incompatible with the classical Grignard or organolithium reagents. This route also eliminates the need for PCl3 and alkyl- or ammoniumphosphinates

Rehabilitation of stroke patients with apraxia:the role of additional cognitive and motor impairments

Purpose : The present study investigated which additional cognitive and motor impairments were present in stroke patients with apraxia and which of these factors influenced the effects of treatment.Method: A group of 33 patients with apraxia were treated according to the guidelines of a therapy programme based on teaching patients strategies to compensate for the presence of apraxia. Patients were treated at occupational therapy departments in general hospitals, rehabilitation centres and nursing homes. The outcome of the strategy training was studied in a pre-post test design; measurements were conducted at baseline and after 12 weeks of therapy. The pretreatment scores of the patients with apraxia were compared to normscores and scores of a control group of patients without apraxia (n = 36) to investigate which impairments are present. The following variables were analysed in order to determine which factors influence outcome: additional neuropsychological deficits (comprehension of language, cognitive impairments due to dementia, neglect and short term memory), level of motor functioning, severity of apraxia and performance on activities of daily living (ADL), and some relevant patient characteristics (gender, age, type of stroke, time since stroke, and location of treatment).Results : The results showed that the presence of apraxia is associated with the presence of additional cognitive and motor impairments. The successful outcome of strategy training was not negatively influenced by cognitive comorbidity. The outcome seemed to be more prominent in patients who were more severely impaired at the start of rehabilitation in terms of the degree of motor impairments, the severity of apraxia and the initial ADL dependence. The ADL observations, however, displayed a ceiling effect, which was taken into account in discussing the results. Demographic variables, especially age, did not predict the outcome of treatment.Conclusions : We suggest that the effect of this training is stronger in more severely disabled patients. However, neither the presence of additional cognitive impairments nor the severity of motor problems nor old age should be an indication for refraining from treating apraxia.</p

Rehabilitation of stroke patients with apraxia: the role of additional cognitive and motor impairments.

PURPOSE: The present study investigated which additional cognitive and motor impairments were present in stroke patients with apraxia and which of these factors influenced the effects of treatment. METHOD: A group of 33 patients with apraxia were treated according to the guidelines of a therapy programme based on teaching patients strategies to compensate for the presence of apraxia. Patients were treated at occupational therapy departments in general hospitals, rehabilitation centres and nursing homes. The outcome of the strategy training was studied in a pre-post test design; measurements were conducted at baseline and after 12 weeks of therapy. The pretreatment scores of the patients with apraxia were compared to normscores and scores of a control group of patients without apraxia (n = 36) to investigate which impairments are present. The following variables were analysed in order to determine which factors influence outcome: additional neuropsychological deficits (comprehension of language, cognitive impairments due to dementia, neglect and short term memory), level of motor functioning, severity of apraxia and performance on activities of daily living (ADL), and some relevant patient characteristics (gender, age, type of stroke, time since stroke, and location of treatment). RESULTS: The results showed that the presence of apraxia is associated with the presence of additional cognitive and motor impairments. The successful outcome of strategy training was not negatively influenced by cognitive comorbidity. The outcome seemed to be more prominent in patients who were more severely impaired at the start of rehabilitation in terms of the degree of motor impairments, the severity of apraxia and the initial ADL dependence. The ADL observations, however, displayed a ceiling effect, which was taken into account in discussing the results. Demographic variables, especially age, did not predict the outcome of treatment. CONCLUSIONS: We suggest that the effect of this training is stronger in more severely disabled patients. However, neither the presence of additional cognitive impairments nor the severity of motor problems nor old age should be an indication for refraining from treating apraxia.(aut.ref.

Rehabilitation of stroke patients with apraxia:the role of additional cognitive and motor impairments

Purpose : The present study investigated which additional cognitive and motor impairments were present in stroke patients with apraxia and which of these factors influenced the effects of treatment. Method: A group of 33 patients with apraxia were treated according to the guidelines of a therapy programme based on teaching patients strategies to compensate for the presence of apraxia. Patients were treated at occupational therapy departments in general hospitals, rehabilitation centres and nursing homes. The outcome of the strategy training was studied in a pre-post test design; measurements were conducted at baseline and after 12 weeks of therapy. The pretreatment scores of the patients with apraxia were compared to normscores and scores of a control group of patients without apraxia (n = 36) to investigate which impairments are present. The following variables were analysed in order to determine which factors influence outcome: additional neuropsychological deficits (comprehension of language, cognitive impairments due to dementia, neglect and short term memory), level of motor functioning, severity of apraxia and performance on activities of daily living (ADL), and some relevant patient characteristics (gender, age, type of stroke, time since stroke, and location of treatment). Results : The results showed that the presence of apraxia is associated with the presence of additional cognitive and motor impairments. The successful outcome of strategy training was not negatively influenced by cognitive comorbidity. The outcome seemed to be more prominent in patients who were more severely impaired at the start of rehabilitation in terms of the degree of motor impairments, the severity of apraxia and the initial ADL dependence. The ADL observations, however, displayed a ceiling effect, which was taken into account in discussing the results. Demographic variables, especially age, did not predict the outcome of treatment. Conclusions : We suggest that the effect of this training is stronger in more severely disabled patients. However, neither the presence of additional cognitive impairments nor the severity of motor problems nor old age should be an indication for refraining from treating apraxia

Rehabilitation of stroke patients with apraxia: the role of additional cognitive and motor impairments

Purpose : The present study investigated which additional cognitive and motor impairments were present in stroke patients with apraxia and which of these factors influenced the effects of treatment. Method: A group of 33 patients with apraxia were treated according to the guidelines of a therapy programme based on teaching patients strategies to compensate for the presence of apraxia. Patients were treated at occupational therapy departments in general hospitals, rehabilitation centres and nursing homes. The outcome of the strategy training was studied in a pre-post test design; measurements were conducted at baseline and after 12 weeks of therapy. The pretreatment scores of the patients with apraxia were compared to normscores and scores of a control group of patients without apraxia (n = 36) to investigate which impairments are present. The following variables were analysed in order to determine which factors influence outcome: additional neuropsychological deficits (comprehension of language, cognitive impairments due to dementia, neglect and short term memory), level of motor functioning, severity of apraxia and performance on activities of daily living (ADL), and some relevant patient characteristics (gender, age, type of stroke, time since stroke, and location of treatment). Results : The results showed that the presence of apraxia is associated with the presence of additional cognitive and motor impairments. The successful outcome of strategy training was not negatively influenced by cognitive comorbidity. The outcome seemed to be more prominent in patients who were more severely impaired at the start of rehabilitation in terms of the degree of motor impairments, the severity of apraxia and the initial ADL dependence. The ADL observations, however, displayed a ceiling effect, which was taken into account in discussing the results. Demographic variables, especially age, did not predict the outcome of treatment. Conclusions : We suggest that the effect of this training is stronger in more severely disabled patients. However, neither the presence of additional cognitive impairments nor the severity of motor problems nor old age should be an indication for refraining from treating apraxia

Outcome of strategy training in stroke patients with apraxia:aphase II study

Objective: Evaluation of a therapy programme for srorke patients with apraxia. The programme is based on teaching patients strategies to compensate for the presence of apraxia. This programme was designed for assessment and treatment by occupational therapists. Design: The outcome was studied in de pre-post design. Measurements were conducted at baseline and 12 weeks later. Subjects: Thirty-three stroke patients with apraxia were treated at occupational therapy departments in general hospitals, rehabilitation centres and nursing homes. Main outcome measures: The following measurements were conducted: an apraxia test, a motor functioning test, observation of activities of daily living (ADL), Barthel Index, and an ADL questionnaire for the therapist and the patient. Results: The patients showed large improvements in ADL functioning on all measures and small improvements on the apraxia test and the motor functioning test. The effect sizes for the disabilities, ranging from 0.92 to 1.06 were large compared to the effect sizes for apraxia (0.34) and motor functioning (0.19). The significant effect of treatment is also seen when individual improvement and subjective improvement are considered. Measured with the Barthel Index for instance, 71% of the patients improved. Conclusions: these results suggest that the programme seems to be successful in teaching patients compensatory strategies that enable them to function more independently, despite the lasting presence of apraxia. (aut.ref.