Publications by authors named "Raymond S"

The antiferromagnetic structure of Yb_{3}Ga_{5}O_{12} is identified by neutron diffraction experiments below the previously known transition at T_{λ}=54  mK. The magnetic propagation vector is found to be k=(1/2,1/2,0), an unusual wave vector in the garnet structure. The associated complex magnetic structure highlights the role of exchange interactions in a nearly isotropic system dominated by dipolar interactions and finds echoes with exotic structures theoretically proposed.

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Background: The Surgical Infection Society (SIS) guidelines recommend against the use of surgical antibiotic prophylaxis (SAP) for low-risk patients undergoing elective laparoscopic cholecystectomies.

Methods: Using National Surgical Quality Improvement Program (NSQIP) data, 5440 pediatric patients were identified who underwent laparoscopic cholecystectomy from 2021 to 2022. Patients who had immunodeficiency, active malignancy, American Society of Anesthesiologists (ASA) physical status classification 3-5, procedure indicated for infection, emergent procedure, received intravenous antibiotics before the prophylaxis window, or missing SAP data were excluded.

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Salmon is the most commonly consumed finfish in the United States of America (USA), and the mislabeling of salmon is a widespread problem. Washington State is a global supplier of wild-caught Pacific salmon and local salmon mislabeling results in substantial economic, ecological, and cultural impacts. Previous studies in Washington State identified high levels of mislabeled salmon in both markets and restaurants, resulting in local legislation being passed that requires proper labeling of salmon products, including identifying it as wild-caught or farm-raised.

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Background: Extended stays in specialist secure hospital units raise ethical concerns. While this topic has been investigated in various countries, there has been little research on it in France.

Aims: We aimed to study the length of stay of patients in the Henri Colin unit, a secure hospital unit in the Paris area and test relationships between length of stay and sociodemographic, clinical and legal features.

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Accurate HIV-1 genome sequencing is necessary to identify drug resistance mutations (DRMs) in people with HIV-1 (PWH). Next-generation-sequencing (NGS) allows the detection of minor variants and is now available in many laboratories. Our study aimed to compare two NGS approaches, a "short read" sequencing protocol using DeepChek® Whole Genome HIV-1 Assay on Illumina, and a "long read" sequencing protocol of HIV-1 pol and env single-molecule real-time sequencing (SMRT) on Pacific Biosciences (PacBio).

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Background: A carotid-cavernous fistula (CCF) is a well-recognized entity resulting from an abnormal connection between the internal carotid artery (ICA) or external carotid artery and the cavernous sinus. Typical CCF symptomology includes proptosis, chemosis, orbital bruit, headache, facial pain, and cranial nerve (CN) palsies. While CCFs most often occur posttraumatically, they can also occur spontaneously, secondary to cavernous ICA aneurysm rupture.

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Background: Surgical resection remains the cornerstone of treatment for hepatoblastoma in children and offers the best chance of disease-free survival. We aimed to analyze the 30 day outcomes of hepatic resection for hepatoblastoma stratified by extent using the National Surgical Quality Improvement Program-Pediatric (NSQIP-P).

Methods: We queried NSQIP-P for children undergoing resection of Hepatoblastoma from 2012 to 2021.

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Unlabelled: Pancreatic masses are extremely rare in pediatric patients, with limited data available. This lack of data makes the diagnosis and management of these tumors in children extremely challenging. Therefore, we aimed to describe the presentations, clinical course, and outcomes of children with pancreatic tumors at our center.

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Background: HIV-1 resistance testing is recommended in clinical management and next-generation sequencing (NGS) methods are now available in many virology laboratories.

Objectives: To evaluate the diagnostic performance of Long-Read Single Molecule Real-time (SMRT) sequencing (Sequel, PacBio) for HIV-1 polymerase genotyping.

Study Design: 111 prospective clinical samples (83 plasma and 28 leukocyte-enriched blood fraction) were analyzed for routine HIV-1 resistance genotyping using Sanger sequencing, Vela NGS, and SMRT sequencing.

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Purpose: Patients with advanced renal cell carcinoma (RCC) face significant challenges, stemming both from the complexities of the disease itself and the adverse effects of treatments. This study evaluated the feasibility and acceptability of a mobile health (mHealth) application tailored for education and symptom management of patients with advanced RCC receiving combined immune checkpoint inhibitor and tyrosine kinase inhibitor (ICI-TKI) therapy.

Methods: The primary end points were acceptability and feasibility.

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Introduction: Breast Cancer Index (BCI) is a genomic assay that evaluates the benefit of extending endocrine therapy (ET) from 5 to 10 years and predicts recurrence risk (RR). We evaluated the association between BCI and Oncotype DX (ODX).

Patients: Women with hormone receptor (HR)-positive early-stage breast cancer (EBC) who had BCI and ODX performed were included.

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Background: Established by Crisis Rescue Foundation in 2021 to support the missing and vulnerable to access health and wellbeing help.

Aim: Address health and wellbeing needs of people experiencing barriers to accessing NHS and allied care by delivering pop-ups in the hearts of communities, outside GP surgery and hospital walls, in a warm, inclusive environment.

Method: Forty pop-ups so far across London delivering bespoke, individualised health information and signposting, joining up NHS, allied and local community services at key sites, including asylum seeker/homeless/faith/refugee/drug and alcohol support/food bank/sex worker support/youth club and education centres.

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Background: Doravirine is the latest NNRTI to be approved for the treatment of HIV-1 and has a different resistance profile from first-generation NNRTIs. Our aim was to investigate the virological efficacy of antiretroviral treatment including doravirine in people living with HIV-1 (PLWHIV), the factors associated with virological failure (VF) and those associated with the emergence of reverse transcriptase (RT) mutations in the case of VF.

Methods: A retrospective national survey of PLWHIV who were either naive or experienced on antiretroviral treatment including doravirine was conducted.

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A patient presented with acute onset headache and subsequent unconsciousness. The neurologic exam showed left-sided myoclonic jerking and right flaccid hemiparalysis. Noncontrast computed tomography revealed diffuse subarachnoid hemorrhage (SAH) with acute hydrocephalus.

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Objective: A pediatric surgery fellow is often regarded as a cornerstone of an academic children's hospital due to the need for their clinical services with overnight coverage being an important aspect of the care provided. There is little known about the objective sleep patterns and work-related communications of a pediatric surgery fellow during overnight home call. The aim of this study is to better understand the sleep patterns and interruptions of an on-call pediatric surgery fellow.

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Human papillomavirus (HPV) genotyping is widely used, particularly in combination with high-risk (HR) HPV tests for cervical cancer screening. We developed a genotyping method using sequences of approximately 800 bp in the E6/E7 region obtained by PacBio single molecule real-time sequencing (SMRT) and evaluated its performance against MY09-11 L1 sequencing and after the APTIMA HPV genotyping assay. The levels of concordance of PacBio E6/E7 SMRT sequencing with MY09-11 L1 sequencing and APTIMA HPV genotyping were 100% and 90.

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Gynecological and obstetric infectious diseases are crucial to women's health. There is growing evidence that links the presence of (), an anaerobic oral commensal and potential periodontal pathogen, to the development and progression of various human diseases, including cancers. While the role of this opportunistic oral pathogen has been extensively studied in colorectal cancer in recent years, research on its epidemiological evidence and mechanistic link to gynecological diseases (GDs) is still ongoing.

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Article Synopsis
  • Tricuspid valve annuloplasty (TA) during mitral valve repair (MVr) increases the risk of needing a permanent pacemaker (PPM) post-surgery, with a higher 90-day PPM implantation rate for MVr with TA (14.0%) compared to isolated MVr (7.7%).
  • This study analyzed data from New York and California between 2004 and 2019 to evaluate the long-term effects of PPM implantation on survival and complications like heart failure hospitalization and endocarditis.
  • Results indicated that PPM recipients had significantly reduced long-term survival and higher risks of heart failure hospitalizations and endocarditis, regardless of whether they underwent isolated MVr or MVr with TA.
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Background And Objectives: Dual antiplatelet therapy (DAPT) is necessary to minimize the risk of periprocedural thromboembolic complications associated with aneurysm embolization using pipeline embolization device (PED). We aimed to assess the impact of platelet function testing (PFT) on reducing periprocedural thromboembolic complications associated with PED flow diversion in patients receiving aspirin and clopidogrel.

Methods: Patients with unruptured intracranial aneurysms requiring PED flow diversion were identified from 13 centers for retrospective evaluation.

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Article Synopsis
  • There is a significant lack of diversity among participants in cardiovascular trials, which undermines the generalizability of results and ultimately affects health outcomes across different populations.
  • The Cardiothoracic Surgical Trials Network (CTSN) has acknowledged this issue and initiated a plan to improve representation among both investigators and trial participants, especially focusing on gender and racial diversity.
  • Results from CTSN trials reveal disparities in enrollment, with efforts now aimed at addressing barriers to participation, enhancing awareness of social determinants of health, and implementing active recruitment strategies to ensure a more representative sample in future trials.
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Background: COVID-19 pandemic brought adaptive changes in lifestyle with possible impact on the incidence of traumatic dental injuries.

Objective: This study compared the presentation and pattern of traumatic dental injuries in children during the pre-COVID-19 and COVID-19 pandemic periods.

Materials And Methods: This was a retrospective study done using clinical records of children aged 16 years and below who presented at the paediatric dental clinic of the University of Port Harcourt Teaching Hospital.

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Humans have a long history of transporting and trading plants, contributing to the evolution of domesticated plants. Theobroma cacao originated in the Neotropics from South America. However, little is known about its domestication and use in these regions.

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BACKGROUND Cloaca malformations result from a disproportion of apoptosis, cell growth, and maturation. The range of cloacal malformations is extensive and diverse, with a lack of a straightforward classification system. Cloacal dysgenesis sequence (CDS), also known as urorectal septum malformation sequence, is a rare cloaca variant described as the absence of a perineal orifice.

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  • The Comet Interceptor mission aims to explore a long-period comet or an interstellar object entering our Solar System, with a focus on its surface composition, shape, and the composition of its gas and dust.
  • Proposed to the European Space Agency in 2018 and approved in June 2022, it is set to launch in 2029 alongside the Ariel mission, utilizing a low-cost approach that allows it to wait for a suitable target comet.
  • The mission will feature a main probe and two sub-probes (B1 from JAXA and B2), providing simultaneous, detailed 3D information about the comet and its interaction with the solar wind, making it unique compared to previous missions.
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