Mohamad Matout, MD

All Publications

• Using network analysis to provide evidence for brain health as a unified construct relevant to aging with HIV. Social psychiatry and psychiatric epidemiology Matout, M., Brouillette, M. J., Fellows, L. K., Mayo, N. E. 2025; 60 (5): 1077-1085

  Abstract

  Brain health is a dynamic state involving cognitive, emotional, and motor domains. Measuring brain health is a challenge owing to the uncertainty as to whether it is one or many constructs. This study aimed to contribute evidence for brain health as a unified construct by estimating the strength of relationships between and among patient-reported items related to the brain health construct in a population with brain vulnerability owing to HIV.Data for this cross-sectional analysis came from a Canadian cohort of people aging with HIV. The sample included 710 men recruited between 2014 and 2016 from five Canadian cities. A network analysis was conducted with 30 items selected from the brain-related domains of fatigue, cognition, depression, sleep, anxiety, and motivation. Node centrality measures were used to determine the most critical items in the network.The network showed small-world properties, that is, most nodes can be reached from other nodes with few hops," indicating strong connectivity. The most central symptoms were "How much do you enjoy life?" and "How often do you have negative feelings?".The small-world properties of the network structure indicate that brain health items are interconnected and may be influenced by shared underlying factors. The centrality indices suggest that items related to enjoyment of life and negative feelings may be particularly important for understanding brain health in this population. Future research should aim to replicate these findings in larger and more diverse samples to confirm their robustness and generalizability.

  View details for DOI 10.1007/s00127-024-02778-z

  View details for PubMedID 39368026

  View details for PubMedCentralID 9328373

• Portrait of mental health identified by people with the post-covid syndrome. Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation Mayo, N. E., Hum, S., Matout, M., Fellows, L. K., Brouillette, M. J. 2024; 33 (9): 2509-2516

  Abstract

  This study aimed to produce a patient-centered understanding of mental health symptoms of people with the post-COVID-19 syndrome (PCS).A cross-sectional analysis of 414 participants in a longitudinal study was carried out involving people who self-identified as having symptoms of PCS. People were asked to name their most frequent and most bothersome mental health symptoms affected by PCS using the structure of the Patient Generated Index (PGI). The text threads from the PGI were grouped into topics using BERTopic analysis.20 topics were identified from 818 text threads referring to PCS mental health symptoms. 35% of threads were identified as relating to anxiety, discussed in terms of five topics: generalized/social anxiety, fear/worry, post-traumatic stress, panic, and nervous. 29% of threads were identified as relating to low mood, represented by five topics: depression, discouragement, emotional distress, sadness, and loneliness. A cognitive domain (22% of threads) was covered by four topics referring to concentration, memory, brain fog, and mental fatigue. Topics related to frustration, anger, irritability. and mood swings (7%) were considered as one domain and there were separate topics related to motivation, insomnia, and isolation.This novel method of digital transformation of unstructured text data uncovered different ways in which people think about classical mental health domains. This information could be used to evaluate whether existing measures cover the content identified by people with PCS, to initiate a clinical conversation, or to justify the development of a new measure of the mental health impact of PCS.

  View details for DOI 10.1007/s11136-024-03719-8

  View details for PubMedID 38916660

  View details for PubMedCentralID 8982872

• What is QOL in children and adolescents with physical disabilities? A thematic synthesis of pediatric QOL literature. Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation Ow, N., Appau, A., Matout, M., Mayo, N. E. 2021; 30 (5): 1233-1248

  Abstract

  Many neuromotor conditions affect children from a young age through to adulthood, impacting their quality of life (QOL). For QOL to be accurately measured in these children, pediatric QOL must first be conceptualized. Some theoretical models and definitions have been proposed to understand QOL, but they were not developed for the pediatric population. The purpose of this review is to build on existing frameworks of QOL and develop a framework and definition of pediatric QOL for measurement purposes, by integrating the findings of multiple qualitative studies involving children and adolescents with physical disabilities.A systematic search was conducted on four databases. Inclusion criteria were qualitative studies with participants with common neurological and neuromuscular conditions. The content of studies had to involve the lived experiences of children and adolescents with disabilities. Thematic synthesis was conducted.48 studies were included. Results generated a schema of the causes and the mitigators of QOL. This  consisted of casual indicators of QOL, mitigators, and components of QOL. Themes under QOL included thoughts and feelings, fitting in, self-image, about the future, and independence. A new framework and definition of pediatric QOL were proposed.In conclusion, pediatric QOL for children with disabilities is formed by their thoughts and feelings, being accepted by society, being able to forge an identity that is beyond their disability, having autonomy, and having a hope for the future. The resulting QOL framework proposed here can also aid future development of QOL measures in children with physical disabilities.

  View details for DOI 10.1007/s11136-021-02769-6

  View details for PubMedID 33550543

  View details for PubMedCentralID 5127964

• A case of acute kidney injury secondary to black cherry concentrate in a patient with chronic kidney disease secondary to type 2 diabetes mellitus. CEN case reports Matout, M., Halme, A. S., Wiseman, J. 2019; 8 (3): 212-215

  Abstract

  There are many herbal products which are accessible to patients, and they may provide with many health benefits. Nevertheless, some of these supplements can lead to significant morbidity as they can also have important side effects and impact patient's organ systems. In this case report, we present a patient with chronic kidney disease secondary to type II diabetes mellitus who develops acute kidney injury and metabolic disturbances secondary to consuming black cherry concentrate as a mean to self-manage his gout flare. The most likely mechanism of injury was cyclooxygenase inhibition by anthocyanins, molecular compounds found in cherries that have a similar mechanism of action to nonsteroidal anti-inflammatory medications. Patient's kidney injury and metabolic disturbances improved after the discontinuation of black cherry concentrate. This is the second case report that presents a correlation between consumption of cherry concentrate in a patient with chronic kidney disease and acute kidney injury.

  View details for DOI 10.1007/s13730-019-00396-2

  View details for PubMedID 30963415

  View details for PubMedCentralID PMC6620216