The present study explores the potential of silica solid phase extraction for gas chromatography mass spectrometric analyses of A- and V-series nerve agents. Owing to the presence of basic amidine and amine moieties, these analyte undergo strong ionic interactions with inherently acidic silica surfaces, producing poor recoveries. Subtle optimizations in the elution composition empowered the analytes to overcome the retention barriers from sorbent surfaces.
View Article and Find Full Text PDFBackground And Aim: Achalasia cardia, a primary motility disorder of the esophagus, poses significant malnutrition risks. This study aims at comprehensively assessing the nutritional status in untreated achalasia patients, contrasting it with functional gastrointestinal disorders (FGIDs) cases and impact of per-oral endoscopic myotomy (POEM) on nutrition at one-year.
Methods: We conducted a prospective study, including consecutive achalasia cases, from December 2021 to April 2022 at a tertiary care centre.
Background: Endoscopic sub-mucosal dissection (ESD) is an established endoscopic modality for the management of colorectal polyps. However, there are no studies regarding the outcomes of ESD from India. In this study, we aimed at evaluating the outcomes of ESD in patients with adenomatous polyps in the colon and rectum.
View Article and Find Full Text PDFKnowledge of the consequences of uncontrolled diabetes mellitus and hypertension on various body organs among health workers is necessary to educate patients. Body mapping is a tool used for exploring perceptions as a part of qualitative research. This study assesses the perceptions of health-care workers on the effects of uncontrolled diabetes mellitus and hypertension on the human body using the body mapping technique.
View Article and Find Full Text PDFObjectives: Anaphylaxis is a severe life-threatening allergic reaction, and its accurate identification in healthcare databases can harness the potential of "Big Data" for healthcare or public health purposes.
Materials And Methods: This study used claims data obtained between October 1, 2015 and February 28, 2019 from the CMS database to examine the utility of machine learning in identifying incident anaphylaxis cases. We created a feature selection pipeline to identify critical features between different datasets.
An Ontario review of legal cases which have considered patients' ability to consent to substance use treatments.
View Article and Find Full Text PDFBackground: There are limited global data on head-to-head comparisons of vaccine platforms assessing both humoral and cellular immune responses, stratified by pre-vaccination serostatus. The COVID-19 vaccination drive for the Indian population in the age group 18-45 years began in April 2021 when seropositivity rates in the general population were rising due to the delta wave of COVID-19 pandemic during April-May 2021.
Methods: Between June 30, 2021, and Jan 28, 2022, we enrolled 691 participants in the age group 18-45 years across four clinical sites in India.
We report a study of the role of material's conductivity in determining the morphology of nanoparticles and nanostructures produced by ultrafast laser ablation of solids. Nanoparticles and textured surfaces formed by laser ablation display a wide variation in size and morphology depending on the material. In general, these qualities can be grouped as to material type, insulator, semiconductor, or metal; although each has many other different material properties that make it difficult to identify the critical material factor.
View Article and Find Full Text PDFHerein, we report the first demonstration of a single-step, growth of NiS nanostructures from a single-source precursor onto a flexible substrate as a versatile platform for an effective nonvolatile memristor. The low temperature, solution-processed deposition of NiS thin films exhibits a wide band gap range, spherical-flower-like morphology with high surface area and porosity, and negligible surface roughness. Moreover, the fabricated Au/NiS/ITO/PET memristor device reveals reproducible bipolar resistive switching (RS) at low operational voltages under both flat and bending conditions.
View Article and Find Full Text PDFRepetitive Transcranial Magnetic Stimulation (rTMS) is an invaluable treatment option for neuropsychiatric disorders. Co-occurring recreational and nonmedical substance use can be common in those presenting for rTMS treatment, and it is unknown how it may affect the safety and efficacy of rTMS for the treatment of currently approved neuropsychiatric indications. This scoping review aimed to map the literature on humans receiving rTMS and had a history of any type of substance use.
View Article and Find Full Text PDFObjective: Anaphylaxis is a severe life-threatening allergic reaction, and its accurate identification in healthcare databases can harness the potential of "Big Data" for healthcare or public health purposes.
Methods: This study used claims data obtained between October 1, 2015 and February 28, 2019 from the CMS database to examine the utility of machine learning in identifying incident anaphylaxis cases. We created a feature selection pipeline to identify critical features between different datasets.
Background And Aim: Diagnostic performance of esophagogastroduodenoscopy (EGD) may be compromized due to adherent mucus and foam. In this study, we aimed at assessing the impact of premedication on mucosal visibility during endoscopy.
Methods: This is a double-blinded (patient and investigator), randomized trial conducted at a tertiary care centre.
COVID-19 had stormed through the world in early March of 2019, and on 5 May 2023, SARS-CoV-2 was officially declared to no longer be a global health emergency. The rise of new COVID-19 variants and , a product of recombinant variants and sub-strains, has fueled a need for continued surveillance of the pandemic as they have been deemed increasingly infectious. Regardless of the severity of the variant, this has caused an increase in hospitalizations, a strain in resources, and a rise of concern for public health.
View Article and Find Full Text PDFPurpose: Defects involving the ankle and foot are often the result of road traffic accidents. Many such defects are composite and require a flap for coverage, which is a significant challenge for reconstructive surgeons. Various locoregional options, such as reverse sural artery, reverse peroneal artery, peroneus brevis muscle, perforator-based, and fasciocutaneous flaps, have been used, but each flap type has limitations.
View Article and Find Full Text PDFBackground And Aims: GERD is common after peroral endoscopic myotomy (POEM). Selective sparing of oblique fibers may reduce the incidence of reflux esophagitis after POEM. In this study, we compared the incidence of GERD between conventional myotomy (CM) versus oblique fiber-sparing (OFS) myotomy in patients with achalasia.
View Article and Find Full Text PDFBackground And Aim: Per-oral endoscopic myotomy (POEM) is an established treatment for achalasia cardia. However, data on the long-term efficacy of POEM in patients with failed Heller's myotomy (HM) are limited. The purpose of this study was to evaluate the long-term outcomes of POEM in patients with persistent or recurrent symptoms following HM.
View Article and Find Full Text PDFTobacco smoking is a significant determinant of preventable morbidity and mortality worldwide. It is now possible to modulate the activity of the neurocircuitry associated with nicotine dependence using repetitive Transcranial Magnetic Stimulation (rTMS), a non-invasive neurostimulation approach, which has recently demonstrated efficacy in clinical trials and received regulatory approval in the US and Canada. However there remains a paucity of replication studies and real-world patient effectiveness data as access to this intervention is extremely limited.
View Article and Find Full Text PDFInfections are uncommon after peroral endoscopic myotomy (POEM) procedure. However, prophylactic antibiotics are routinely administered for variable duration during peri-operative period. In this study, we aimed to determine the difference in the rate of infections between single (SD-A) and multiple doses (MD-A) antibiotic prophylaxis groups.
View Article and Find Full Text PDFPsychiatry Clin Psychopharmacol
March 2023
International public health strategies indicate a need for equitable resources for wellness in younger children and their caregivers. Reflective functioning, a proxy for emotional regulation abilities, is a key area in this domain. As an emerging area, reflective functioning has not been mapped comprehensively and requires systematic investigation.
View Article and Find Full Text PDFTopic: To evaluate the prognostic association between preoperative features seen on OCT imaging and postoperative visual acuity (VA) outcomes in rhegmatogenous retinal detachments (RRDs).
Clinical Relevance: Currently, there is limited literature on the prognostic value of preoperative RRD OCT features.
Methods: A literature search was conducted on Ovid MEDLINE, Ovid Embase, and Cochrane CENTRAL from inception to September 15, 2022.
Background: Approximately 1 in 3 Canadians will experience an addiction or mental health challenge at some point in their lifetime. Unfortunately, there are multiple barriers to accessing mental health care, including system fragmentation, episodic care, long wait times, and insufficient support for health system navigation. In addition, stigma may further reduce an individual's likelihood of seeking support.
View Article and Find Full Text PDFBackground: There is limited data on long-term outcomes of per-oral endoscopic myotomy (POEM). In this study, we aim to evaluate the efficacy of POEM in patients who completed a minimum follow-up of 5 years.
Methods: Data of patients who underwent POEM and completed ≥ 5-year follow-up were analyzed, retrospectively.
Background And Aim: Per-oral endoscopic myotomy (POEM) is emerging as an effective treatment for pediatric achalasia. There are limited data on the long-term efficacy of POEM in children and adolescents with achalasia. In this study, we aim to evaluate the outcomes of POEM at ≥4 years follow-up.
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