Publications by authors named "Dey T"

Background: The inverse relationship between increased surgical team familiarity and reduced operative time is established, but its effect on patient outcomes remains uncertain.

Materials And Methods: A prospective cohort study including operations by attending surgeons between 1 November 2020 and 31 December 2021 across fourteen surgical departments from four French university hospitals. Surgical team familiarity was measured as the cumulative number of previous operations performed by the same dyad of attending and assisting surgeons.

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Rationale: Postpartum haemorrhage, defined as a blood loss of 500 mL or more within 24 hours of birth, is the leading global cause of maternal morbidity and mortality. Uterine fibroids are non-cancerous growths that develop in or around the uterus, and affect an increasing number of women. Caesarean myomectomy is the surgical removal of fibroids during a caesarean section.

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Background: Valve-in-valve transcatheter aortic valve replacement (ViV-TAVR) is associated with improved perioperative safety compared to redo surgical aortic valve replacement (redo-SAVR), but long-term outcomes remain uncertain. We therefore compare long-term outcomes of ViV-TAVR and redo-SAVR.

Methods: The study included 1:1 propensity-matched Medicare beneficiaries with degenerated bioprosthetic valves admitted between 09/29/2011 and 12/30/2020 undergoing either redo-SAVR or ViV-TAVR.

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Reduced nicotinamide adenine dinucleotide phosphate (NADPH) is a crucial reducing cofactor for reductive biosynthesis and protection from oxidative stress. To fulfill their heightened anabolic and reductive power demands, cancer cells must boost their NADPH production. Progrowth and mitogenic protein kinases promote the activity of cytosolic NAD kinase (NADK), which produces NADP, a limiting NADPH precursor.

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Importance: Surgeon stress can influence technical and nontechnical skills, but the consequences for patient outcomes remain unknown.

Objective: To investigate whether surgeon physiological stress, as assessed by sympathovagal balance, is associated with postoperative complications.

Design, Setting, And Participants: This multicenter prospective cohort study included 14 surgical departments involving 7 specialties within 4 university hospitals in Lyon, France.

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Antimicrobial resistance poses a significant global health threat by reducing the effectiveness of conventional antibiotics, particularly against pathogens like Methicillin-resistant Staphylococcus aureus (MRSA). This study investigates the antimicrobial potential of rhizospheric soil bacteria from Prosopis cineraria (Sangri) in the Thar Desert. Bacterial strains isolated from these samples were observed to produce secondary metabolites, notably, Iturin A C-15 cyclic lipopeptide (SS1-3-P) which was extracted from strain Enterobacter cloacae SS1-3 and was purified and characterized using reverse-phase HPLC, ESI-LC/MS, Nile-Red Assay, and FT-IR analysis.

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Rationale: Postpartum haemorrhage (PPH), defined as a blood loss of 500 mL or more within 24 hours of birth, is the leading global cause of maternal morbidity and mortality. Allogenic blood transfusions are a critical component of PPH management, yet are often unfeasible, particularly in resource-poor settings where maternal morbidity is highest. Autologous cell salvage in the management of PPH has been proposed to combat limitations in access to allogenic blood and potential transfusion-related risks.

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Xylooligosaccharides (XOS) are excellent prebiotic which improve health through selective modulation of beneficial gut microbiome. Its production from agroresidues using microbial xylanase is considered as sustainable and economic approach. In this study a xylanase producing bacterium isolated from decaying wood soil was phylogenetically identified and designated as Bacillus stercoris DWS1.

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Article Synopsis
  • The Zn(II)-supramolecular metallogel (Zn-Py), created using 2,6-pyridinedicarboxylic acid, effectively encapsulated the solvent dimethylformamide and exhibited unique mechanical properties, including thixotropy.
  • Characterizations through imaging techniques like FESEM and TEM confirmed the gel's microscopic characteristics, while EDS analysis verified the composition of its gel-building components.
  • The Zn-Py metallogel demonstrated significant antimicrobial activity against both Gram-positive and Gram-negative bacteria, and was successfully used in fabricating photodetectors that performed well, with notable electrical parameters indicating high efficiency in optoelectronic applications.
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Background: Venous Thromboembolic events (VTE) after Metabolic and Bariatric Surgery (MBS) result in significant morbidity and are the leading cause of mortality.

Objective: The objective of this study was to identify patients who are at a high risk for developing VTE and who may benefit from extended chemoprophylaxis following MBS.

Setting: Multi-institutional study.

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Background: Prior work evaluated clinician work-related physical activity and found it does not meet recommended requirements. We aimed to assess more fully daily surgeon physical activity and compare it to self-reported activity.

Methods: This multispecialty prospective cohort study included attending surgeons from 14 surgical departments within four French university hospitals.

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Background/aims: Epithelioid hemangioendothelioma (EHE) is an uncommon vascular tumor that commonly affects the liver. Hepatic EHE (HEHE) presents with variable clinical and histopathological features. We describe detailed clinico-histopathological features, differential diagnosis, and treatment outcomes of the cases of HEHE diagnosed in our center.

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Article Synopsis
  • An epidemiological cohort analysis was conducted using data from the Surveillance Epidemiology and End Results national cancer database (2002-2012) to examine the impact of PM (particulate matter < 2.5 microns) on head and neck cancer (HNC) incidence.
  • The study found a significant link between PM exposure and HNC, particularly noting the strongest association at a 5-year lag (β=0.24, p<0.001), with additional significant associations noted for no lag and up to a 20-year lag.
  • Further subgroup analysis is recommended to deepen the understanding of how PM exposure contributes to HNC development.
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Purpose: To compare ileal conduit (IC) and other organ at risk (OAR) dosimetry between treatment techniques in a prospective cohort of patients planned for adjuvant radiotherapy (RT) after radical cystectomy and IC reconstruction.

Methods And Materials: Computed tomography (CT datasets of twenty patients who underwent adjuvant RT were obtained and used prospectively for delineation of target volumes (primary and nodal) and OARs, including IC, uretero-ileal anastomosis and ileal stoma using a specified protocol for simulation including a delayed CT to identify IC. Three RT plans were generated for each patient for a dose of 54 gray (Gy) in 27 fractions (PTV V95% >95%): 3-dimensional conformal radiotherapy (3DCRT) with (3DCRT_S) and without (3DCRT_N) stoma shielding, and volumetric modulated arc therapy (VMAT), with OAR constraints specified for VMAT plans (IC: Dmax<54Gy, V50Gy < 20 cc).

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Decreased overall dietary consumption of micronutrients may be linked to an increased risk of olfactory dysfunction (OD) including subjective report of OD, subjective report of phantosmia, and objective OD. Interactions were identified between these micronutrients, suggesting that outcomes may vary depending on the mixture of micronutrients taken.

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Volume-outcome relations exist for transcatheter aortic valve replacement (TAVR) and mitral transcatheter edge-to-edge repair (TEER), but how the volume of one impacts the outcomes of the other has not been studied. We, therefore, examined the association between TAVR volume and TEER outcomes using patients who underwent TEER in the Nationwide Readmissions Database from 2016 to 2018. For each year, hospitals were categorized into quartiles (first = lowest volume, fourth = highest volume) by TAVR volume.

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Importance: Although trial data support the omission of axillary surgery and radiation therapy (RT) in women aged 70 years or older with T1N0 hormone receptor-positive (HR+) breast cancer, potential overtreatment in older adults with frailty persists.

Objective: To determine how much geospatial variation in locoregional therapy may be attributed to region vs patient factors.

Design, Setting, And Participants: This retrospective cross-sectional study included women aged 70 years or older who were diagnosed with HR+/ERBB2-negative (ERBB2-) breast cancer from January 1, 2013, to December 31, 2017.

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Article Synopsis
  • Cyclophosphamide (CYL) is a commonly used cancer chemotherapy drug that can lead to severe memory impairment due to its toxic effects from free radical generation.
  • A study explored the protective effects of noni fruit juice (NJ), known for its antioxidant properties, against memory issues caused by CYL in Swiss albino mice.
  • Results showed that while CYL treatment caused short-term memory impairment, combining NJ with CYL significantly improved memory and biochemical markers associated with oxidative stress and neuroprotection in the mice.
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Introduction: Sociodemographic disparities in colorectal cancer (CRC) surgical patients are known. Few studies, however, have examined the intersection of insurance type and median household income (MHI).

Methods: In this retrospective analysis of the National Inpatient Sample from 2000 to 2019, all CRC surgery patients between 50 and 64 y old were included.

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Article Synopsis
  • The study aimed to compare the effectiveness and toxicity of two radiation techniques for treating locally advanced cervical cancer: traditional 3DCRT and advanced IG-IMRT, to lessen side effects while maintaining tumor control.
  • Conducted as a randomized trial, 173 patients were evaluated after being treated with external beam radiation and brachytherapy, with results showing IG-IMRT led to significantly reduced acute toxicities while maintaining similar tumor control rates to 3DCRT.
  • The findings suggest that using IG-IMRT with personalized margins might be a better option for minimizing treatment-related side effects in patients with locally advanced cervical carcinoma.
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α-Ketoglutaric acid-based supramolecular Zn(II) metallogels in ,'-dimethylformamide (DMF) and dimethyl sulfoxide (DMSO) solvent (i.e., Zn-α-Glu-DMF and Zn-α-Glu-DMSO) were successfully achieved.

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The review article by Pavlidis published in provides a meticulous analysis of the intricacies surrounding anaplastic carcinoma of the thyroid. Thyroid carcinoma encompasses a spectrum of diseases, each characterized by distinct behaviors and outcomes. Diagnostic approaches encompass a diverse array of tools.

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Background: Esophageal cancer is quite prevalent worldwide and usually carries a poor prognosis. Histologically, although squamous cell carcinoma and adenocarcinoma predominate, small cell carcinoma (SmCC) cases have been reported. Overall, there is a paucity of literature regarding this variant.

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Background: The COVID-19 pandemic prompted surgical volume reductions due to lockdown measures. This study evaluates COVID-19's impact on gender-affirming surgery (GAS) volume and complications from the pandemic onset through the recovery period.

Methods: The 2019-2021 National Surgical Quality Improvement Program databases were queried for transgender or gender-diverse patients using ICD-10 codes.

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