Objective Recent studies have demonstrated gender differences in functional outcome after stroke. However, the underlying reasons for differences have been inconsistent. The present study examined whether gender differences in long-term functional outcomes exist among surviving patients with first-ever ischemic stroke and with individual subtypes of stroke. Methods A total of 997 patients (654 men, 343 women) were followed for 5 years after discharge. Patients were assigned to 4 subtypes of ischemic stroke (atherothrombotic, lacunar, cardioembolic and unclassified infarction
[Purpose] Maintaining high quality of life is crucial for the rehabilitation of patients with Parkinson’s disease. The quality of life scales currently in use do not assess all quality of life domains or their importance for each individual. Therefore, a new quality of life measure, the Schedule for the Evaluation of Individual Quality of Life-Direct Weighting, was used to investigate quality of life in people with Parkinson’s disease. [Subjects and Methods] Fifteen people with idiopathic Parkinson’s disaese (average age = 80.0 years, standard deviation = 10.3 years, Hoehn & Yahr stages 1–4) were interviewed using the Schedule for the Evaluation of Individual Quality of Life-Direct Weighting. Its quality of life constructs were tested by comparing them against disease-specific quality of life (39-items Parkinson’s Disease Questionnaire), motor functioning (Unified Parkinson’s Disease Rating Scale Part III), and activities of daily living (Barthel Index). [Results] Social connections such as “family” and “friends” were revealed as important constructs of life satisfaction. The Schedule for the Evaluation of Individual Quality of Life-Direct Weighting was not significantly correlated with the 39-items Parkinson’s Disease Questionnaire, Unified Parkinson’s Disease Rating Scale Part III, or Barthel Index but was significantly correlated with the “communication” dimension of the 39-items Parkinson’s Disease Questionnaire. [Conclusion] The Schedule for the Evaluation of Individual Quality of Life-Direct Weighting detected various domains of quality of life, especially social relationships with family and friends. “Being heard” was also revealed as an essential component of life satisfaction, as it provides patients with a feeling of acceptance and assurance, possibly resulting in better quality of life.
Horizontal intracortical projections for agonist and antagonist muscles exist in the primary motor cortex (M1), and reward may induce a reinforcement of transmission efficiency of intracortical circuits. We investigated reward-induced change in M1 excitability for agonist and antagonist muscles. Participants were 8 healthy volunteers. Probabilistic reward tasks comprised 3 conditions of 30 trials each: 30 trials contained 10% reward, 30 trials contained 50% reward, and 30 trials contained 90% reward. Each trial began with a cue (red fixation cross), followed by blue circle for 1 s. The subjects were instructed to perform wrist flexion and press a button with the dorsal aspect of middle finger phalanx as quickly as possible in response to disappearance of the blue circle without looking at their hand or the button. Two seconds after the button press, reward/non-reward stimulus was randomly presented for 2-s duration. The reward stimulus was a picture of Japanese 10-yen coin, and each subject received monetary reward at the end of experiment. Subjects were not informed of the reward probabilities. We delivered transcranial magnetic stimulation of the left M1 at the midpoint between center of gravities of agonist flexor carpi radialis (FCR) and antagonist extensor carpi radialis (ECR) muscles at 2 s after the red fixation cross and 1 s after the reward/non-reward stimuli. Relative motor evoked potential (MEP) amplitudes at 2 s after the red fixation cross were significantly higher for 10% reward probability than for 90% reward probability, whereas relative MEP amplitudes at 1 s after reward/non-reward stimuli were significantly higher for 90% reward probability than for 10% and 50% reward probabilities. These results implied that reward could affect the horizontal intracortical projections in M1 for agonist and antagonist muscles, and M1 excitability including the reward-related circuit before and after reward stimulus could be differently altered by reward probability.
Background: When assessing respiratory muscle strength using sniff nasal inspiratory pressure (SNIP), it is important to consider ethnic differences. Therefore, it is necessary to determine the mean values and lower limits of normal for SNIP in the Japanese population. Objective: To determine the mean values and lower limits of normal for SNIP, which is used as an assessment of inspiratory muscle strength, in healthy Japanese subjects. Methods: A total of 223 healthy Japanese volunteers (112 men, 111 women), aged 18–69 years, were studied; none had a history of pulmonary disease, heart disease, neuromuscular disease or sinusitis. To measure SNIP, a nasal plug was inserted into one nostril and the mouth was kept closed. Each subject was asked to take short, sharp sniffs with maximal effort from functional residual volume. Results: Based on the intraclass correlation coefficient, SNIP measurements showed good reproducibility in both men and women. The mean SNIP values were 76.8 ± 28.9 cm H2O in men and 60.0 ± 20.0 cm H2O in women; the values were significantly higher in men than in women (p < 0.01). On stepwise multiple linear regression analysis, the SNIP values were negatively related to age in men and positively related to body mass index (BMI) in women. The lower limits of normal for SNIP were 32.9 cm H2O in men and 28.8 cm H2O in women. Conclusions: In healthy Japanese subjects, the mean SNIP value was higher in men than in women. In Japanese subjects, SNIP values appear to be related to age in men and BMI in women.
This study investigated the role of human T-cell lymphotropic virus type I HTLV-I infection in 11 patients who developed slowly progressive myelopathy with abnormal spinal cord lesions. The authors performed clinical and neuroradiological examinations and calculated the odds that an HTLV-I-infected individual of a specific genotype, age, and provirus load has HTLV-I-associated myelopathy/tropical spastic paraparesis (HAM/TSP). Anti-HTLV-I antibodies were present in both the serum and cerebrospinal fluid in all of the patients. Abnormal magnetic resonance imaging (MRI) lesions were classified as cervical to thoracic type (CT type), cervical type (C type), and thoracic type (T type). In each type, there was swelling of the spinal cords with high-intensity lesions, which were located mainly in bilateral posterior columns, posterior horns, or lateral columns. Virological and immunological analyses revealed that all patients showed a high risk of developing HAM/TSP. These 11 patients may have developed HAM/TSP, as manifested by spinal cord abnormalities shown on MRI. These MRIs implicate clinical variability of HAM/TSP, which may indicate active-early stages of HAM/TSP lesions.
Objective To describe the clinical features and clinical course of individuals diagnosed with asymptomatic severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection or mild coronavirus disease (COVID)-19. Patients The study participants consisted of 7 crewmembers of the passenger cruise-liner, Diamond Princess , who were admitted to our hospital after becoming infected with SARS-CoV-2 aboard the ship. Methods The data on patient background and biochemical test results were obtained from the patients' medical records. All patients had a chest X-ray, and a throat swab and sputum samples were sent for culture on admission. Results The median age of the 7 patients, of whom 4 were male and 3 were female, was 39 years (range: 23-47 years). On admission, none of them had fever, but 4 (57%) had a cough. None of them showed any signs of organ damage on laboratory testing. Chest X-ray showed pneumonia in one individual, which resolved spontaneously, while the other 6 had normal chest X-ray findings. Culture of throat swabs and sputum samples revealed that 4 patients (57%) had bacterial upper respiratory infections ( Haemophilus influenzae , Klebsiella pneumoniae , and Staphylococcus aureus ). The period from a positive polymerase chain reaction (PCR) test to negative conversion ranged from 5 to 13 days, with a median of 8 days. Conclusion Healthy young adults without risk factors who acquire SARS-CoV-2 infection may have an asymptomatic infection or may experience mild COVID-19. In addition to obesity, an older age, underlying illness, and being overweight can lead to a risk of exacerbation; thus, hospital management for such individuals may be desirable. Culturing respiratory samples may be useful for diagnosing secondary bacterial pneumonia.
Regardless of degree of independence of patients' ADLs, caregiver burden was severe. To decrease caregiver burden, it is necessary to use care services, reduce care time, and allow caregivers free time. In addition, it is possible to continue long-term home care by maintaining their relationships.
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