Purpose: The purpose of the study was to investigate the time course difference of relative changes in oxygenated hemoglobin (Oxy-Hb) concentration in the prefrontal cortex (PFC) between controls and patients with post-stroke cognitive impairment (PSCI) who had right hemisphere damage (RHD) using the continuous performance test (CPT) and functional near-infrared spectroscopy (fNIRS) technology. The study aimed to evaluate the feasibility of CPT in the diagnosis and evaluation of PSCI with RHD.
Methods: A total of 16 patients with RHD (RHD group) and 32 normal subjects (control group) were recruited. The Montreal Cognitive Assessment Scale was used to assess post-stroke cognitive impairment. The CPT and fNIRS were employed to investigate task-related changes in Oxy-Hb levels.
Results: The RHD group showed significantly lower accuracy and hit rates than the control group; however, the average reaction time was significantly longer in the former. Although the two groups showed no statistically significant difference in terms of left and right PFC integral values, the mean values were greater in the RHD group. The centroid value of the right PFC was significantly higher in the RHD group than in the control group. The time course of Oxy-Hb concentrations in the PFC differed between the two groups. In the RHD group, neural compensation was observed in both prefrontal lobes; however, the rate of compensation was slower on the affected side.
Conclusion: The CPT may be helpful in the clinical diagnosis of PSCI with RHD. It may therefore be used to evaluate the effectiveness of cognitive interventions.
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http://dx.doi.org/10.3389/fneur.2023.1173004 | DOI Listing |
Blood
December 2024
Sanquin, Amsterdam, Netherlands.
Alloimmunization during pregnancy occurs when a mother produces antibodies against fetal antigens, leading to complications like hemolytic disease of the fetus and newborn (HDFN) and fetal and neonatal alloimmune thrombocytopenia (FNAIT). HDFN involves destruction of fetal red blood cells, potentially causing severe anemia, hydrops fetalis, and fetal death. FNAIT affects fetal platelets and possibly endothelial cells, resulting in risk of intracranial hemorrhage and brain damage.
View Article and Find Full Text PDFChildren (Basel)
November 2024
Department of Pediatrics, Peking University Third Hospital, Beijing 100191, China.
Background/objectives: The clinical characteristics and outcomes of hemolytic disease of the newborn (HDN) caused by irregular antibodies remain unclear. Herein, we analyzed the clinical features and prognosis of HDN.
Methods: Children admitted to our institution between June 2009 and December 2022 with a definite diagnosis of HDN were evaluated.
Cureus
December 2024
Immunohematology and Blood Transfusion, Kalinga Institute of Medical Sciences, Bhubaneswar, IND.
Background and objective RhD variants show altered D antigen expression, affecting their serological detection. Proper identification is crucial due to potential anti-D antibody formation. This study aimed to retrospectively analyze the frequency and characteristics of D variant cases encountered during RhD typing in both blood donors and recipients and the transfusion implications.
View Article and Find Full Text PDFCureus
December 2024
Cardiology, St. George's University School of Medicine, Port St. Lucie, USA.
Background This research examines mortality patterns and the place of death in individuals with chronic rheumatic heart disease (RHD) in the United States, aiming to identify demographic predictors for home or hospice death. Additionally, the study aims to uncover trends in mortality due to RHD and provide a predictive forecast. Methods The study utilized data from the Centers for Disease Control and Prevention (CDC)-Wide-Ranging Online Data for Epidemiologic Research (WONDER) database, which spans 22 years (1999-2020), and was categorized based on place of death, including home or hospice care, inpatient, outpatient, or emergency room deaths, and nursing home facility deaths.
View Article and Find Full Text PDFInt Immunopharmacol
January 2025
Department of Transfusion Medicine, The Affiliated Taizhou People's Hospital of Nanjing Medical University, Taizhou 225300, Jiangsu, China. Electronic address:
Objective: The objective of this study was to rigorously investigate and elucidate the genetic mechanisms underlying the formation of the RH blood group in a specific case and to systematically analyse the RH blood group genes among the family members of the proband.
Methods: Serological methods were used to determine the RH blood group phenotype of the proband. To elucidate the underlying genetic mechanism responsible for the RH phenotype, a comprehensive approach was undertaken, including RHCE genotyping, sequencing of RHD and RHCE genes, and exon sequencing of RHAG.
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