Publications by authors named "Williams U"

Article Synopsis
  • Traumatic brain injury (TBI) is a major cause of disability globally, with complex primary and secondary injury processes involved.
  • Microglia, the central nervous system's immune cells, play a critical role in TBI-related inflammation, acting both protectively and harmfully.
  • Understanding the timing and mechanisms of microglial activity is essential for creating effective therapies to manage neuroinflammation and enhance recovery from TBI.
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Background: Fascial plane blocks (FPBs) are widely used for abdominal surgery with the assumption that liposomal bupivacaine (LB) is more effective than standard bupivacaine (SB).

Methods: This was a single-institution retrospective cohort study of patients administered FPBs with LB or SB ​+ ​admixtures (dexamethasone/dexmedetomidine) for open abdominal cancer surgery. Propensity score matching generated a 2:1 (LB:SB) matched cohort.

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The relationship between APOE polymorphisms and Parkinson's disease (PD) in black Africans has not been previously investigated. We evaluated the association between APOE polymorphic variability and self-declared cognition in 1100 Nigerians with PD and 1097 age-matched healthy controls. Cognition in PD was assessed using the single item cognition question (item 1.

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Background: Where applicable, regional anesthesia has been shown to be superior to opioid or non-opioid analgesic modalities alone. However, some studies have shown ethnic-based disparities in the use of regional anesthesia in patients undergoing surgical procedures. In this study of patients who had undergone major oncologic surgery, our main objective was to compare the use of regional anesthesia between patients of different ethnicities.

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Background: Data on non-motor symptoms (NMS) in black Africans with Parkinson's disease (PD) are sparse.

Objective: To describe the profile of NMS in the Nigeria PD Registry (NPDR) cohort and explore the relationship between NMS and PD motor phenotype.

Methods: We conducted a cross-sectional study of the frequency and burden of NMS, based on the non-motor symptoms scale (NMSS) and the Chaudhuri method respectively in our cohort.

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Background: University researchers worked with 13 children's service provider agencies to conduct a programme evaluation of parents' perceptions of the family-centredness of service spanning 3 years (January 2015 to May 2018). Parents of Ontario children with autism spectrum disorder (ASD) receiving applied behaviour analysis (ABA) programming reported outcomes of their experience of family-centred services (FCS) using the 20-item Measure of Processes of Care (MPOC-20). The purpose of this paper is to report the outcomes of the quality assurance evaluation of FCS as measured by MPOC-20 among parents of children with ASD receiving ABA services.

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Background: Clinical disease registries are useful for quality improvement in care, benchmarking standards, and facilitating research. Collaborative networks established thence can enhance national and international studies by generating more robust samples and credible data and promote knowledge sharing and capacity building. This report describes the methodology, baseline data, and prospects of the Nigeria Parkinson Disease Registry.

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Background: Diagnosis of early mild cognitive impairment (EMCI) as a prodromal stage of Alzheimer's disease (AD) with its delineation from the cognitively normal (CN) group remains a challenging but essential step for the planning of early treatment. Although several studies have focused on the MCI diagnosis, this study introduces the early stage of MCI to assess more thoroughly the earliest signs of disease manifestation and progression.

New Method: We used random forest feature selection model with a Gaussian-based algorithm to perform method evaluation.

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Background: The impact of patient ethnicity on healthcare delivery is well documented. In this study of children who had undergone open abdominal or pelvic surgery for tumor resection, we sought to compare the use of epidural analgesia or intraoperative blood transfusions between Caucasian and non-Caucasian children.

Methods: A retrospective study of 139 children was performed.

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Objective: The purpose of this study is to assess the influences of environment, population characteristics, and service utilization on participation frequency and involvement in the home setting among children 0 to 5 years.

Method: Data were collected from parents of 236 children (mean age 3 years and 5 months, SD = 1.30, girls = 152 and boys = 84) using a children's treatment centre in Ontario through an online survey.

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Objective: Recent evidence suggests the α2-adrenoreceptor agonist dexmedetomidine may promote metastasis of cancer cells. In this study we sought to evaluate the impact of dexmedetomidine administration on the survival of children and adolescents with cancer.

Design: Retrospective chart review.

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A low prevalence of Parkinson's disease (PD) has been reported in the Sub-Saharan Africa (SSA) region. The genetic causes and clinical features of PD in this region have been poorly described. Very few reports have examined the availability and access to evidence-based quality care for people living with PD in this region.

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Background: 'About My Child' 19-item version (AMC-19) is a parent-report measure developed to assess the complexity of a child's life due to biological, psychological, social and environmental issues, that can be completed in approximately 5 min. AMC measures two dimensions of complexity: parental concerns and impact on the child. This paper examines the psychometric properties and parent-reported utility of the AMC-19 for children with disabilities or special health care needs.

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Background: In adults, preoperative opioid use and higher perioperative opioid consumption have been associated with higher odds of persistent opioid use after surgery. There are limited data on the prevalence and factors associated with persistent opioid use after major oncologic surgery in children.

Aims: In this study, we sought to determine the prevalence and factors associated with the development of persistent opioid use in a group of children and adolescents who had undergone cytoreductive surgery with hyperthermic intraperitoneal chemotherapy.

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Background And Objectives: Perioperative red blood cell transfusions (PBT) may be associated with worse survival. In this study of adults undergoing cytoreductive surgery with hyperthermic intraperitoneal chemotherapy (CRS-HIPEC), we investigated whether there was an association between PBT and survival.

Materials And Methods: A retrospective study of adults who had undergone CRS-HIPEC for appendiceal carcinomatosis was conducted.

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Background: Acute kidney injury (AKI) is a postoperative complication associated with significant morbidity and mortality. The incidence and risks factors for AKI after cytoreductive surgery with hyperthermic intraperitoneal chemotherapy (CRS-HIPEC) have not been fully studied. The purpose of this study was to identify perioperative risk factors predictive of AKI after CRS-HIPEC.

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Background: Several studies in adult patients have suggested an unfavorable association between opioid consumption and cancer progression.

Aims: This study investigated the impact of opioid consumption on the survival of children and adolescents undergoing cytoreductive surgery with hyperthermic intraperitoneal chemotherapy.

Methods: A retrospective study of patients <19 years who had undergone cytoreductive surgery with hyperthermic intraperitoneal chemotherapy was performed.

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It can be argued that pulse oximetry is the most important technological advancement ever made in monitoring the well-being and safety of patients undergoing anesthesia. Before its development, the physical appearance of the patient and blood gas analysis were the only methods of assessing hypoxemia in patients. The disadvantages of blood gas analysis are that it is not without pain, complications, and most importantly does not provide continuous, real-time data.

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Neurofibromatosis type 1 is an autosomal-dominant disorder with the tendency toward the formation of tumors. Plexiform neurofibromas are the most common type of tumors seen in neurofibromatosis type 1. Approximately 50% occur in the head and neck region with a 5% incidence of airway involvement.

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Multiple endocrine neoplasia type IIb (MEN IIb) is an endocrine disorder which can manifest with tumors such as pheochromocytomas and neuromas. We present the case of a patient with MEN IIb, after bilateral adrenalectomies, on maintenance steroid replacement, who underwent a neuroma resection and developed severe hypotension. There is persistent controversy regarding the general administration of perioperative "stress dose" steroids for patients with adrenal insufficiency.

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Background And Objectives: Studies indicate the perioperative transfusion of red blood cells during oncologic surgery may be associated with worse outcomes. In this study, we evaluated the impact of red blood cell transfusions on the short- and long-term outcomes of children undergoing a major oncologic surgery.

Materials And Methods: A retrospective review of the medical records of children ≤18 years of age who had undergone cytoreductive surgery with hyperthermic intraperitoneal chemotherapy was performed.

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