SummaryThis study aimed to correlate REM sleep without atonia (RSWA) and neuropsychological data in patients with idiopathic/isolated REM sleep behaviour disorder (iRBD) and those with RBD associated with Parkinson's disease (PDRBD), in order to assess whether higher degrees of RSWA are related to poorer cognitive performance. A total of 142 subjects were enrolled: 48 with iRBD, 55 with PDRBD, and 39 PD without RBD (PDnoRBD). All participants underwent video‐polysomnographic recording, clinical and neuropsychological assessment. RSWA was quantified according to two manual scoring methods (Montréal, SINBAR) and one automated (REM atonia index, RAI). Mild cognitive impairment (MCI) was diagnosed according to diagnostic criteria for MCI in Parkinson's disease. The relationship between neuropsychological scores and RSWA metrics was explored by multiple linear regression analysis and logistic regression models. Patients with iRBD showed significantly lower visuospatial functions and working memory, compared with the others. More severe RSWA was associated with a higher risk of reduced visuospatial abilities (OR 0.15), working memory (OR 2.48), attention (OR 2.53), and semantic fluency (OR 0.15) in the iRBD. In the whole group, a greater RSWA was associated with an increased risk for depressive symptoms (OR 3.6). A total of 57(40%) MCI subjects were found (17 iRBD, 26 PDRBD, and 14 PDnoRBD). Preserved REM‐atonia was associated with a reduced odds of multi‐domain MCI in the whole study population (OR 0.54). In conclusion, a greater severity of RSWA was associated with an increased risk for poor cognitive performance and depressive mood in patients with RBD. Moreover, higher RAI was associated with a lower risk of multi‐domain MCI.
To evaluate whether the incidence of emesis in patients undergoing cisplatin chemotherapy and receiving the standard antiemetic prophylaxis during daily clinical practice was similar to that obtained in antiemetic trials, a prospective study was carried out, adopting very wide eligibility criteria. In the first cycle of chemotherapy, 308 consecutive adult patients were evaluated, 112 in the second, and 89 in the third cycle. Results were compared with those obtained in three published randomized clinical trials. In the first cycle of chemotherapy, complete protection from acute vomiting/nausea was obtained by 78.9% (243/308) and 71.8% (221/308) of patients. These results were quite similar to those obtained in the three randomized studies: 79.7%/72.1%, 78.3%/71.4%, and 78.7%/77.2%. No significantly different results among these studies were obtained, even in the second and third cycles of chemotherapy. In conclusion, in patients undergoing cisplatin chemotherapy, the effectiveness of the same standard antiemetic prophylaxis is similar to the efficacy found in randomized clinical trials, regardless of the eligibility/exclusion criteria and the setting of the study.
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