Use of a Single-Fiber Optical Probe for the Detection of Tumor Fluorescence in High-Grade Glioma.

Background And Objectives: High-grade glioma (HGG) is the most common primary brain tumor in adults. The overall median survival is between 14 and 16 months. Fluorescence-guided surgery by detection of protoporphyrin IX (PpIX) fluorescence has been shown to improve the extent of resection, translating to improved progression-free survival.

Construct validity, responsiveness, and interpretability of the Utrecht Scale for Evaluation of Rehabilitation (USER) in patients admitted to inpatient geriatric rehabilitation.

Objective: The Utrecht Scale for Evaluation of Rehabilitation is a multi-domain measurement with good content validity, structural validity and reliability for measuring physical functioning (mobility, selfcare) and cognitive functioning in geriatric rehabilitation. We aimed to determine the construct validity of both Utrecht Scale for Evaluation of Rehabilitation scales and the responsiveness and interpretability of the scale for physical functioning in geriatric rehabilitation.

Design: Prospective follow-up study embedded in routine care.

A single amino acid substitution in MdLAZY1A dominantly impairs shoot gravitropism in Malus.

Plant architecture is 1 of the most important factors that determines crop yield potential and productivity. In apple (Malus domestica), genetic improvement of tree architecture has been challenging due to a long juvenile phase and growth as complex trees composed of a distinct scion and a rootstock. To better understand the genetic control of apple tree architecture, the dominant weeping growth phenotype was investigated.

Pituitary hyperplasia resulting in visual deficit.

Background: Pituitary hyperplasia is an infrequent cause of visual disturbance and few such cases have been reported in the literature.

Case Description: We describe the case of a 16-year-old female who presented with a short history of progressive headache and visual blurring. Examination revealed markedly constricted visual fields.

Amniotic Membrane Patching to Assist Closure of Recalcitrant Macular Holes.

Background And Objective: This study reports a case series of patients with persistent macular holes (MHs) who underwent human amniotic membrane subretinal placement to achieve successful anatomic MH closure.

Patients And Methods: This was a retrospective case series of patients with persistently open full-thickness MHs who underwent human amniotic membrane placement. Patients were observed up to 6 months postoperatively.

Case report: -inhibitor therapy in -mutated primary CNS tumours including one case of -mutated disease.

oncogene mutations have been reported in multiple central nervous system (CNS) tumor types, and emerging evidence supports the use of targeted therapy in -mutated gliomas. oncogene mutations have been recently identified in disease (RDD)-a rare non-Langerhans cell histiocytosis. This series describes three patients from two neurosurgical centers in Ireland with BRAF V600E-mutated CNS tumors.

Malpractice Cases Arising From Telephone Based Telemedicine Triage in Ophthalmology.

Purpose: To determine the allegation, precipitating medical issue, and outcome of telephone triage focused malpractice litigation among ophthalmologists.

Methods: The WestLaw Edge database was reviewed using terms pertaining to ophthalmology and telemedicine. The search ranged from 4/7/30 to 1/25/22.

Technical Performance of a 430-Gene Preventative Genomics Assay to Identify Multiple Variant Types Associated with Adult-Onset Monogenic Conditions, Susceptibility Loci, and Pharmacogenetic Insights.

DNA-based screening in individuals without known risk factors potentially identifies those who may benefit from genetic counseling, early medical interventions, and/or avoidance of late or missed diagnoses. While not currently in widespread usage, technological advances in genetic analysis overcome barriers to access by enabling less labor-intensive and more cost-efficient means to discover variants of clinical importance. This study describes the technical validation of a 430-gene next-generation sequencing based assay, GeneCompass, indicated for the screening of healthy individuals in the areas of actionable health risks, pharmaceutical drug response, and wellness traits.

Psychometrics of the observational scales of the Utrecht Scale for Evaluation of Rehabilitation (USER): Content and structural validity, internal consistency and reliability.

Introduction: Establish content and structural validity, internal consistency, inter-rater reliability, and measurement error of the physical and cognitive scales of the Utrecht Scale for Evaluation clinical Rehabilitation (USER) in geriatric rehabilitation.

Material And Methods: First, an expert consensus-meeting (N=7) was organised for content validity wherein scale content validity index (CVI) was measured. Second, in a sample of geriatric rehabilitation patient structural validity (N=616) was assessed by confirmatory factor analyses for exploring unidimensionality.

The Diagnostic Yield of Electromyography at Detecting Abnormalities on Muscle Biopsy: A Single Center Experience.

Historically, electromyography (EMG) is utilized early in the diagnostic evaluation of neuromuscular disorders, but its importance may be diminishing with more sophisticated genetic, imaging and immunohistochemistry investigations now available. In the present study, the diagnostic yield of EMG at predicting pathological abnormalities confirmed by muscle biopsy was determined at our neuroscience center. A retrospective study of consecutive cases reviewed at neuromuscular multidisciplinary meetings between 2007 and 2016 identified patients who had EMG and muscle biopsy as part of their diagnostic evaluation.

Combined autofluorescence and diffuse reflectance for brain tumour surgical guidance: initial study results.

This study was conducted to assess the potential of using a fibre optic probe system based on autofluorescence and diffuse reflectance for tissue differentiation in the brain. A total of 180 optical measurements were acquired from 28 brain specimens (five patients) with eight excitation and emission wavelengths spanning from 300 to 700 nm. Partial least square-linear discriminant analysis (PLS-LDA) was used for tissue discrimination.

Molecular screening of familial hypercholesterolemia in Icelanders.

Familial hypercholesterolemia (FH) is a monogenic disease characterized by a lifelong exposure to high LDL-C levels that can lead to early onset coronary heart disease (CHD). The main causes of FH identified to date include loss-of-function mutations in or , or gain-of-function mutations in . Early diagnosis and genetic testing of FH suspects is critical for improved prognosis of affected individuals as lipid lowering treatments are effective in preventing CHD related morbidity and mortality.

Immediate Release of Vitreomacular Traction After Pneumatic Vitreolysis Followed by the Drinking Bird Technique.

Purpose: To report a case of release of vitreomacular traction (VMT) in a patient with a full thickness macular hole (FTMH) immediately following pneumatic vitreolysis (PV) combined with head bobbing movements.

Methods: A 71-year-old female with VMT and an FTMH presented with blurred vision for 2 months to the level of 20/400. At her 1-month follow-up visit, PV was performed using CF gas and she was instructed to perform the drinking bird technique for ten minutes.

Sinoatrial Arrest Caused by Ticagrelor after Angioplasty in a 62-Year-Old Woman with Acute Coronary Syndrome.

The platelet aggregation inhibitor ticagrelor, a P2Y receptor antagonist, is widely used after angioplasty in patients with acute coronary syndrome. Clinical trial data have shown that it is well tolerated by most patients. We present the case of a 62-year-old woman whose ticagrelor-related asymptomatic and persistent sinus pauses after angioplasty resolved when ticagrelor was replaced with prasugrel.

Avoidance of Catastrophic Structural Failure as an Evolutionary Constraint: Biomechanics of the Acorn Weevil Rostrum.

The acorn weevil (Curculio Linnaeus, 1758) rostrum (snout) exhibits remarkable flexibility and toughness derived from the microarchitecture of its exoskeleton. Modifications to the composite profile of the rostral cuticle that simultaneously enhance the flexibility and toughness of the distal portion of the snout are characterized. Using classical laminate plate theory, the effect of these modifications on the elastic behavior of the exoskeleton is estimated.

Pain Control after Intravitreal Injection Using Topical Nepafenac 0.3% or Pressure Patching: A Randomized, Placebo-Controlled Trial.

Purpose: Pain after an intravitreal injection (IVI) can last up to 7 days and negatively impacts the patient's experience, potentially reducing treatment compliance. We prospectively evaluated topical nepafenac 0.3% suspension and patching for the reduction of pain after IVI.

Assessing Prognosis of Acute Coronary Syndrome in Recent Clinical Trials: A Systematic Review.

There is no recent comprehensive overview of contemporary clinical trials assessing short and long-term outcomes in patients with acute coronary syndrome (ACS). This paper reviews factors from recent clinical trials that influenced prognosis in patients with ACS. Cochrane and PubMed databases were screened systematically for clinical trials published in the English literature reporting on ACS prognosis.

Causal inference accounts for heading perception in the presence of object motion.

The brain infers our spatial orientation and properties of the world from ambiguous and noisy sensory cues. Judging self-motion (heading) in the presence of independently moving objects poses a challenging inference problem because the image motion of an object could be attributed to movement of the object, self-motion, or some combination of the two. We test whether perception of heading and object motion follows predictions of a normative causal inference framework.

Navigated Retina Laser Therapy as a Novel Method for Laser Retinopexy of Retinal Tears.

Background And Objective: To describe the use of a navigated laser system for the treatment of retinal tears.

Materials And Methods: A planned pattern laser retinopexy was performed using a navigated laser photocoagulator incorporating rapid panretinal photocoagulation technology with an individualized target overlay to produce a 3 × 3 square pattern surrounding a horseshoe tear. Institutional review board approval was not applicable for this case.

Cortical Balance Between ON and OFF Visual Responses Is Modulated by the Spatial Properties of the Visual Stimulus.

The primary visual cortex of carnivores and primates is dominated by the OFF visual pathway and responds more strongly to dark than light stimuli. Here, we demonstrate that this cortical OFF dominance is modulated by the size and spatial frequency of the stimulus in awake primates and we uncover a main neuronal mechanism underlying this modulation. We show that large grating patterns with low spatial frequencies drive five times more OFF-dominated than ON-dominated neurons, but this pronounced cortical OFF dominance is strongly reduced when the grating size decreases and the spatial frequency increases, as when the stimulus moves away from the observer.

Flavoprotein Fluorescence Correlation with Visual Acuity Response in Patients Receiving Anti-VEGF Injection for Diabetic Macular Edema.

Anti-VEGF treatment of diabetic macular edema (DME) complicating diabetic retinopathy (DR) has greatly improved structural and visual outcomes for patients with diabetes mellitus. However, up to 50% of patients are either nonresponsive or refractory to anti-VEGF treatment (no improvement in BCVA or central macular thickness (CMT)). It is believed that factors such as mitochondrial structural and functional damage, due to oxidative stress, are partially responsible for this lack of improvement.

Proposed mechanisms of relative bradycardia.

Relative bradycardia is the term used to describe the mechanism where there is dissociation between pulse and temperature. This finding is important to recognize since it may provide further insights into the potential underlying causes of disease. There is no known proposed mechanism to explain this phenomenon.

Comprehensive genetic testing for female and male infertility using next-generation sequencing.

Purpose: To develop a comprehensive genetic test for female and male infertility in support of medical decisions during assisted reproductive technology (ART) protocols.

Methods: We developed a next-generation sequencing (NGS) gene panel consisting of 87 genes including promoters, 5' and 3' untranslated regions, exons, and selected introns. In addition, sex chromosome aneuploidies and Y chromosome microdeletions were analyzed concomitantly using the same panel.