Publications by authors named "Nasr C"

Introduction: Despite advances in treatment, the diagnosis and management of cancer remains a physical and psychological ordeal for the patient. Many authors have studied the impact of religiosity in cancer patients. The aim of our study was to describe the psychological influence of religious beliefs and practices in these patients.

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  • - SBRT is a cutting-edge treatment for lung cancer that minimizes damage to healthy tissue and has improved patient care at the Salah Azaiez Institute through a thorough study of lung cancer patients.
  • - The study analyzed 10 lung cancer patients from 2019 to 2022, focusing on their demographics, tumor characteristics, and treatment plans, finding that most patients were older males with varying stages of lung cancer including inoperable tumors and oligometastatic disease.
  • - After treatment, patients experienced some acute side effects like cough and fatigue, but with no severe complications or local recurrences noted after a follow-up period, indicating that SBRT is promising yet still requires careful planning and management.
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Background: Limited treatment options exist for inoperable thyroid cancers. We evaluated whether neoadjuvant use of systemic tyrosine kinase inhibitors facilitates surgery of differentiated thyroid cancers in this challenging context.

Methods: A single-institution experience of 42 patients receiving tyrosine kinase inhibitors for papillary, follicular and anaplastic thyroid carcinomas between 2018 and 2023 was reviewed to identify differentiated thyroid cancers treated with neoadjuvant tyrosine kinase inhibitors (dabrafenib/trametinib, lenvatinib/pembrolizumab, or lenvatinib alone) via multidisciplinary protocols.

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  • VMAT (Volumetric Modulated Arc Therapy) is a new technique for cranio-spinal irradiation (CSI) gaining traction in Tunisia, with a study comparing its dosimetric outcomes to 3DCRT (Three-Dimensional Conformal Radiotherapy).
  • The results showed that VMAT offers better target volume coverage and protection for some organs at risk, although it increases low-dose exposure to non-target tissue.
  • However, VMAT also requires longer treatment and beam-on times compared to 3DCRT, raising considerations for its implementation in low to middle-income countries.
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  • The SENZA-PDN study looked at a special treatment called 10-kHz spinal cord stimulation (SCS) to help people with painful diabetic neuropathy (PDN).
  • After 24 months, those who received this treatment felt a lot less pain and improved their quality of life.
  • Most participants were really happy with the treatment, making it clear that 10-kHz SCS is a helpful option for managing PDN.
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Purpose: The recent SENZA-PDN study showed that high-frequency (10kHz) spinal cord stimulation (SCS) provided significant, durable pain relief for individuals with painful diabetic neuropathy (PDN), along with secondary benefits, including improved sleep quality and HRQoL. Given that metabolic factors and chronic neuropathic pain are related, we evaluated potential secondary effects of 10kHz SCS on hemoglobin A1c (HbA1c) and weight in SENZA-PDN participants with type 2 diabetes (T2D).

Patients And Methods: This analysis included 144 participants with T2D and lower limb pain due to PDN who received 10kHz SCS during the SENZA-PDN study.

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Introduction: Spindle cell carcinoma (SCC), also called sarcomatoid carcinoma or carcinosarcoma, represents a rare variant of squamous cell carcinoma that may involve multiple organs, including the larynx. It is a mixed tumor, composed of both malignant epithelial and mesenchymal elements. As the larynx appears to be an unusual site, we report a case of treated SCC laryngeal as well as a literature review of such tumor.

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Aims: To evaluate the long-term efficacy of high-frequency (10 kHz) spinal cord stimulation (SCS) for treating refractory painful diabetic neuropathy (PDN).

Methods: The SENZA-PDN study was a prospective, multicenter, randomized controlled trial that compared conventional medical management (CMM) alone with 10 kHz SCS plus CMM (10 kHz SCS+CMM) in 216 patients with refractory PDN. After 6 months, participants with insufficient pain relief could cross over to the other treatment.

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The utilization of hybrid materials in separation technology, sorbents, direct air capture (DAC) technology, sensors, adsorbents, and chiral material recognition has increased in the past decade due to the recognized impact of atmospheric pollutants and hazardous industrial gases on climate change. A novel hybrid material, perchlorate hybrid (PClH), has been proposed in this study for the effective sensory detection and trapping of atmospheric pollutants and industrial hazardous gases. The study evaluated the structural properties, adsorption mechanism, electronic sensitivity, and topological analysis of PClH using highly accurate computational methods (M062X-D3BJ/def2-ccpVTZ and DSDPBEP86/def2-ccpVTZ).

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Objectives: Tall cell variant (TCV) papillary thyroid cancer (PTC) is a subtype of PTC associated with aggressive tumor behavior, advanced stage, and higher rates of recurrence and mortality. The present study aimed to test an established dynamic risk stratification tool in the TCV population, with the goal of better predicting the postoperative course of these patients.

Study Design: Retrospective chart review.

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Importance: Survival outcomes for anaplastic thyroid cancer (ATC), the most aggressive subtype of thyroid cancers, have remained poor. However, targeted therapies and immunotherapies present new opportunities for treatment of this disease. Evaluations of survival outcomes over time with new multimodal therapies are needed for optimizing treatment plans.

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Background: Burnout among medical students has always been a major concern.

Objective: To evaluate changes in the prevalence rates of burnout among Lebanese pre-final and final year medical students while taking into consideration the impact of coronavirus 2019 (COVID-19) on both the academical and clinical experiences.

Methods: This is a multi-centered, survey-based, cross-sectional study conducted in October 2021.

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Context: The Afirma® GSC aids in risk stratifying indeterminate thyroid nodule cytology (ITN). The 2018 GSC validation study (VS) reported a sensitivity (SN) of 91%, specificity (SP) of 68%, positive predictive value (PPV) of 47%, and negative predictive value (NPV) of 96%. Since then, 13 independent real-world (RW) postvalidation studies have been published.

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  • Tall cell morphology (TCM) is a rare and aggressive form of papillary thyroid carcinoma (PTC) linked to poorer cancer outcomes, prompting a study to pinpoint risk factors for survival.
  • The research analyzed data from 365 patients treated for PTC-TCM over a 21-year period, identifying various prognostic factors related to cancer recurrence and overall survival rates post-surgery.
  • Key findings indicate that factors such as positive surgical margins, the presence of positive lymph nodes, and larger tumor size significantly contribute to worse locoregional recurrence-free survival rates.
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The slow solvent evaporation approach was used to create a single crystal of (CHNO)[ZnCl] at room temperature. Our compound has been investigated by single-crystal XRD which declares that the complex crystallizes in the monoclinic crystallographic system with the 2/ as a space group. The molecular arrangement of the compound can be described by slightly distorted tetrahedral ZnCl anionic entities and 5-nitrobenzimidazolium as cations, linked together by different non-covalent interaction types (H-bonds, Cl…Cl, π…π and C-H…π).

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Langerhans histiocytosis or Langerhans cell histiocytosis (LCH) is a rare benign pathology representing less than 1% of orbital tumors. It can cause either localized or generalized lesions, leading to the destruction of hard and soft tissues. Eosinophilic granuloma is the most benign form and the predominant clinical presentation of LCH.

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Introduction: Castleman's disease (CD) is a rare and benign disease often identified in the mediastinum with few cases in the head and neck area. Parapharyngeal Castleman's disease was rarely reported in the literature. The aim of our work was to discuss the management of this particular location of CD.

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  • A study evaluated the effectiveness of 10-kHz spinal cord stimulation (SCS) combined with conventional medical management (CMM) in patients with chronic, painful diabetic neuropathy who did not respond to standard pain treatments.
  • Participants who received 10-kHz SCS reported significant pain relief (average 74.3% reduction) and improved quality of life (HRQoL) compared to those receiving only CMM, with 92% expressing satisfaction with the treatment.
  • The results support the use of 10-kHz SCS as a viable option for individuals with poorly managed diabetic neuropathy pain, showing durable benefits over a 12-month period.
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Background: Interpretation of Hürthle cell-predominant cytologies (HCP) is very challenging as a majority is diagnosed as indeterminate. Prior studies have reported various cytologic features to help distinguish non-neoplastic (NN) from neoplastic and malignant lesions but had contradicting results. Our aim was to identify risk factors predictive of neoplasm and/or malignancy by correlating cytologic features with clinical and ultrasound findings.

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Background And Aim: Poorly differentiated thyroid cancer (PDTC) is a rare but aggressive subtype of thyroid cancer that portends a poor prognosis. There remains a paucity of literature on PDTC outcomes. The aim of our study was to evaluate outcomes of PDTC in our tertiary care facility.

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Two novel complexes, [(CHNO)CdCl](I) and [(CHNO)CuCl],havebeen synthesized and characterized. Single crystal X-ray diffraction revealed that in compound (I), 2,6-dimethanol pyridinium acts as a monodentate ligand through the O atom of the hydroxyl group. Contrarily, the 2,6-dimethanol pyridine ligand interacts tridentately with the Cu(II) ion via the nitrogen atoms and the two oxygen (O, O') atoms of the two hydroxyl groups.

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Background: Li-Fraumeni syndrome (LFS) is a rare autosomal hereditary predisposition to multiples cancers, mainly affecting young individuals. It is characterized by a broad tumor spectrum. To our best knowledge, only one Tunisian study with a confirmed LFS was published.

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  • - Painful diabetic neuropathy (PDN) is a significant complication of diabetes that is often difficult to treat with medication, prompting a systematic review of interventional management options.
  • - The review analyzed various studies and found strong evidence supporting dorsal column spinal cord stimulation (SCS) for lower extremity pain and some evidence for acupuncture and botulinum toxin-A injections, while acknowledging a lack of studies on upper extremity treatment.
  • - The conclusions recommend SCS for those who haven't responded to conventional treatments, suggest acupuncture or botulinum toxin-A as additional therapies, and recognize the potential for surgical decompression in certain cases, highlighting the need for more high-quality research.
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