1,598 results match your criteria: "University of Montreal Hospital[Affiliation]"

Background And Objective: Through the centuries the appearance of the male genitalia has always been an important concern for men, symbolizing virility, potency and sexual contentment. Correction of perceived deficiencies and deformities of the male genitalia can be addressed by aesthetic surgery as well as the enhancement its external aspect. If the social acceptance of cosmetic surgery, particularly of women's breasts, dates from the early 1950s, male intimate cosmetic surgery emerged from the shadows about 10 years ago with a medical community still very suspicious and reproachful.

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Background And Objective: Mastectomies have a significant socio-psychological impact, motivating patients to undergo breast reconstruction. Initially, silicone implants were used to reconstruct the breast. However, breast implants have been the subject of successive crises throughout the years.

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Surgical treatment of marginal sinus dural arteriovenous fistula: a narrative review.

Neurochirurgie

May 2024

Division of Neurosurgery, Department of Surgery, University of Montreal Hospital Center, 1000, Rue St-Denis Montréal, QC H2X 0C, Canada. Electronic address:

Background: Dural arteriovenous fistulas of the marginal sinus (DAVFms) are uncommon and complex, with varied symptoms. Their complexity is heightened by the region's dense anastomotic network, posing risks for endovascular treatment. Surgical intervention can be effective, but this depends on thorough pre-operative understanding and optimal intra-operative visualization of the fistula.

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Background: The organochlorine dichlorodiphenyltrichloroethane (DDT) is banned worldwide owing to its negative health effects. It is exceptionally used as an insecticide for malaria control. Exposure occurs in regions where DDT is applied, as well as in the Arctic, where its endocrine disrupting metabolite, dichlorodiphenyldichloroethylene (DDE) accumulates in marine mammals and fish.

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Integrating accompanying patients into clinical oncology teams: limiting and facilitating factors.

BMC Health Serv Res

January 2024

Institut National d'excellence en Santé Et Services Sociaux (INESSS), Montréal, QC, Canada.

Objectives: Since 2018, four establishments in Quebec have been instrumental in implementing the PAROLE-Onco program, which introduced accompanying patients (APs) into healthcare teams to improve cancer patients' experience. APs are patient advisors who have acquired specific experiential knowledge related to living with cancer, using services, and interacting with healthcare professionals. They are therefore in a unique and reliable position to be able to provide emotional, informational, cognitive and navigational support to patients who are dealing with cancer.

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Article Synopsis
  • - The study investigates the variation of subclinical psychosis (SP) measures, such as schizotypy and psychotic-like experiences (PLEs), across different geographic regions and how this correlates with the incidence of first-episode psychosis (FEP) in those areas.
  • - Through analysis of data from 1497 controls in 16 sites across 6 countries, researchers found that schizotypy showed significant variation related to site characteristics, while PLEs exhibited less variation; local incidences of FEP were associated with reduced unexplained variance in schizotypy.
  • - Findings highlight that younger, migrant, unmarried, unemployed, and less educated individuals, along with factors like cannabis use and childhood adversity, are linked to SP
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Background: To summarize current evidence to report a comparative systematic review and meta-analysis of prostatic artery embolization (PAE) with transurethral resection of the prostate (TURP) and open simple prostatectomy (OSP) for the treatment of benign prostatic hyperplasia (BPH).

Methods: A systematic literature search was performed to identify studies published from inception until August 2021. The search terms used were (prostate embolization OR prostatic embolization) AND (prostatic hyperplasia OR prostatic obstruction) as well as the abbreviations of PAE and BPH.

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Background And Objectives: The pathophysiology of spontaneous vertebral artery dissecting aneurysms (SVADA) is poorly understood. Our goal is to investigate the hemodynamic factors contributing to their formation using computational fluid dynamics (CFD) and deep learning algorithms.

Methods: We have developed software that can use patient imagery as input to recreate the vertebrobasilar arterial system, both with and without SVADA, which we used in a series of three patients.

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A comprehensive review of the vertebral artery anatomy.

Neurochirurgie

May 2024

Division of Neurosurgery, Department of Surgery, University of Montreal Hospital Center, 1000, Rue St-Denis Montréal, QC H2X 0C, Canada. Electronic address:

Background: The vertebral arteries (VA) play a critical role by supplying nearly one-third of the brain's blood flow, predominantly contributing to the posterior circulation. These arteries may need to be exposed in a various cranial and cervical procedures and offers access to investigate or treat vascular lesions by endovascular means related to the posterior circulation. Given its complex anatomy, which is subject to numerous variations, and its role in supplying vital brain regions, a thorough understanding of the VA's anatomy is paramount for any related procedure.

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As a form of immunomodulatory therapeutics, mesenchymal stromal/stem cells (MSCs) from umbilical cord (UC) tissue were assessed for their dynamic interplay with the Th-17 immune response pathway. UC-MSCs were able to modulate lymphocyte response by promoting a Th-17-like profile. Such modulation depended on the cell ratio of the cocultures as well as the presence of an inflammatory setting underlying their plasticity.

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Suspicion and Treatment of Perilymphatic Fistula: A Prospective Clinical Study.

Audiol Res

January 2024

Division of Otolaryngology-Head & Neck Surgery, University of Montreal, Montreal, QC H3C 3J7, Canada.

Since the discovery of the perilymphatic fistula (PLF), the diagnosis and treatment remain controversial. If successfully recognized, the PLF is surgically repairable with an obliteration of the fistula site. Successful treatment has a major impact on patient's quality of life with an improvement in their audiological and vestibular symptoms.

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Episodic ataxias are rare neurological disorders characterized by recurring episodes of imbalance and coordination difficulties. Obtaining definitive molecular diagnoses poses challenges, as clinical presentation is highly heterogeneous, and literature on the underlying genetics is limited. While the advent of high-throughput sequencing technologies has significantly contributed to Mendelian disorders genetics, interpretation of variants of uncertain significance and other limitations inherent to individual methods still leaves many patients undiagnosed.

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Objective: The consequences associated with blood clots are numerous and are responsible for many deaths worldwide. The assessment of treatment efficacy is necessary for patient follow-up and to detect treatment-resistant patients. The aim of this study was to characterize the effect of treatment on blood clots in vitro using quantitative ultrasound parameters.

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Background: Computational analysis of routine electroencephalogram (rEEG) could improve the accuracy of epilepsy diagnosis. We aim to systematically assess the diagnostic performances of computed biomarkers for epilepsy in individuals undergoing rEEG.

Methods: We searched MEDLINE, EMBASE, EBM reviews, IEEE Explore and the grey literature for studies published between January 1961 and December 2022.

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Article Synopsis
  • - CCDC88B is linked to chronic inflammatory diseases and impacts dendritic cell (DC) migration in mice; disrupting this gene results in defective DC movement.
  • - Researchers found that the proteins ARHGEF2 and RASAL3 interact with CCDC88B and influence neuroinflammation and colitis susceptibility in mice with mutations in these proteins.
  • - The CCDC88B/RASAL3/ARHGEF2 complex regulates DC migration by affecting RHOA activation, with ARHGEF2 and RASAL3 having opposing effects on cell movement.
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Background: Worldwide, lung cancer is the second leading cause of cancer death in women. The present study explored associations between occupational exposures that are prevalent among women, and lung cancer.

Methods: Data from 10 case-control studies of lung cancer from Europe, Canada, and New Zealand conducted between 1988 and 2008 were combined.

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Article Synopsis
  • The study aims to identify predictors of treatment switching in patients with relapsing-remitting MS using data from multiple national registries.
  • A total of 269,822 treatment episodes from 110,326 patients were analyzed, focusing on those who started disease-modifying treatments during their RRMS phase.
  • Key findings indicate that higher disability scores (EDSS), being female, and older age increase the likelihood of treatment switching, with certain DMTs initiated between 2007 and 2012 showing even higher rates of switching.
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Preserving the in vivo cell transcriptome is essential for accurate profiling, yet factors during cell isolation including time ex vivo and temperature induce artifactual gene expression, particularly in stress-responsive immune cells. In this study, we investigated two methods to mitigate ex vivo activation signature gene (ASG) expression in peripheral blood mononuclear cells (PBMCs): transcription and translation inhibitors (TTis) and cold temperatures during isolation. Comparative analysis of PBMCs isolated with TTis revealed reduced ASG expression.

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Cutaneous squamous cell carcinoma (CSCC) overlying an arteriovenous fistula (AVF) is rare and presents unique challenges. This case report describes a method of fistula preservation after CSCC excision using a flow-through venous free flap. The saphenous vein of the venous flap was used as flow-through segment for AVF preservation.

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Background: In the HERO study, relugolix demonstrated sustained testosterone suppression superior to that of leuprolide acetate (97% vs 89%; difference 7.9% [95% confidence interval, 4.1-12%; p < 0.

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Purpose Of Review: This review summarizes key findings relating to the association between preeclampsia and retinal disorders.

Recent Findings: Preeclampsia is a major cause of maternal morbidity. Pregnant women with preeclampsia frequently describe having visual disturbances.

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Association of maternal cancer with congenital anomalies in offspring.

Paediatr Perinat Epidemiol

February 2024

Department of Medical Genetics, University of British Columbia, Vancouver, British Columbia, Canada.

Background: Congenital anomalies are common, but the possibility that maternal cancer increases the chance of having a child with a birth defect is not fully understood.

Objectives: To examine the association between maternal cancer before or during pregnancy and the risk of birth defects in offspring.

Methods: We conducted a retrospective cohort study of live births in Quebec, Canada, between 1989 and 2022 using hospital data.

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Objective: Improve the characterization of mechanical properties of blood clots. Parameters derived from shear wave (SW) velocity and SW amplitude spectra were determined for gel phantoms and in vitro blood clots.

Methods: Homogeneous phantoms and phantoms with gel or blood clot inclusions of different diameters and mechanical properties were analyzed.

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Transrectal ultrasound (TRUS) is a common modality used during urological procedures that require real-time visualization of the prostate, such as prostate biopsy and peri-prostatic nerve blocks (PNB) for surgical procedures. Current practice for TRUS-guided PNB requires use of costly, fixed, and non-portable ultrasound machinery that can often limit workflow. The Clarius endocavity EC7 probe, a digital, handheld and pocket-sized endocavity ultrasound (US) device, is an alternative, portable technology which was recently shown to accurately visualize and measure prostate dimensions and volume.

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