Publications by authors named "Marc Cohen"

Melasma, a symmetric pigmentary disorder, is more prevalent in women and individuals with darker skin tones. Despite its global prevalence, there is a notable gap in the understanding of gender, racial, and Fitzpatrick skin type (FST) representation in melasma clinical trials. We conducted a comprehensive search of the United States (US) National Library of Medicine clinical trials database (ClinicalTrials.

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Objectives: To evaluate the impact of delayed postoperative radiotherapy (PORT) on overall survival (OS) in patients with head and neck cancers (HNC).

Data Sources: A systematic review and meta-analysis were conducted by searching MEDLINE, Embase, CENTRAL, Web of Science, and CINAHL databases.

Review Methods: Studies assessing the impact of delayed PORT in adult HNC patients were included.

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Background: Laser test spots are a preliminary assessment performed on a small area of the skin to evaluate patients' reaction to laser therapy. Despite their recognized importance, there is a gap in knowledge among dermatologists regarding laser test spot practices.

Objective: The authors aim to explore dermatologists' test spot practices.

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The diagnosis and treatment of sinonasal small round epithelial/neuroepithelial malignancies depend on the expression of conventional neuroendocrine markers (NEMs), such as synaptophysin, chromogranin A, INSM1, and CD56/NCAM1. However, these tumors remain diagnostically challenging because of overlapping histologic and immunohistochemical features. The transcriptional regulators ASCL1, NEUROD1, POU2F3, and YAP1 are novel NEM (nNEM) used for the subtyping of small-cell lung cancer (SCLC).

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Introduction: Delayed diagnosis to treatment interval (DTI) in head and neck cancers (HNC) can significantly impact patient outcomes. The need for multimodal treatment in HNC may cause delays in initiation of treatment. This systematic review aims to provide a comprehensive understanding of the consequences of delayed DTI on both oncologic and QoL outcomes, proposing a new quality benchmark along the treatment continuum of HNC patients.

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The most common source of Radiofrequency Electromagnetic Field (RF-EMF) exposures during sleep includes digital devices, yet there are no studies investigating the impact of multi-night exposure to electromagnetic fields emitted from a baby monitor on sleep under real-world conditions in healthy adults. Given the rise in the number of people reporting to be sensitive to manmade electromagnetic fields, the ubiquitous use of Wi-Fi enabled digital devices and the lack of real-world data, we investigated the effect of 2.45 GHz radiofrequency exposure during sleep on subjective sleep quality, and objective sleep measures, heart rate variability and actigraphy in healthy adults.

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: Extended reality (XR) has increasing usage in medicine, especially surgical fields, but the scope of applications is largely limited to intraoperative navigation. The aim of this scoping review is to evaluate all the available literature on how XR technologies have been applied to otolaryngology-head and neck surgery (OHNS) beyond the operating room for applications such as patient education and interdisciplinary communication. : Using the Preferred Reporting Items for Systematic reviews and Meta-Analyses extension for Scoping Reviews (PRISMA-ScR) guidelines, we systematically searched PubMed and Scopus.

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Background And Objectives: Older adult-focused housing with services programs seek to improve access to supportive services, particularly among individuals residing in subsidized housing. The Right Care, Right Place, Right Time (R3) program comprises two on-site wellness teams responsible for 400 participants across seven housing sites in Greater Boston. These embedded teams work directly with residents to address health-related needs and access to services.

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  • * Ruxolitinib is the only FDA-approved medication for vitiligo but has serious side effects, highlighting the need for safer alternatives like aryl hydrocarbon receptor (AhR) agonists.
  • * Recent research shows that AhR agonists, particularly tapinarof, promote skin repigmentation and have a better safety profile, but more clinical trials are needed to fully assess their potential in vitiligo treatment.
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  • High-risk HPV is a key factor in oropharyngeal squamous cell carcinoma but is found much less frequently (2.2-6%) in oral cavity squamous cell carcinoma (OCSCC), with a reported rate of 0.7% to 4.9% in different cohorts.
  • A study analyzed the clinicopathologic features and outcomes of 27 HPV-positive OCSCC cases, revealing that most were non-keratinizing and predominantly affected males and (ex) smokers.
  • HPV detection in OCSCC requires RNA in situ hybridization, as p16 immunohistochemistry alone isn’t sufficient, and HPV positivity did not impact survival rates for these patients.
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Keloids are characterized histologically by excessive fibroblast proliferation and connective tissue deposition, and clinically by scar tissue extending beyond the original site of skin injury. These scars can cause pruritus, pain, physical disfigurement, anxiety, and depression. As a result, keloid patients often have a diminished quality of life with a disproportionate burden on ethnic minorities.

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: Endoscopic endonasal skull base surgery has become a viable alternative to open procedures for the surgical treatment of benign and malignant lesions in the sinonasal and skull base regions. As in sinus surgery, skull base surgery may cause crusting and posterior rhinorrhea, particularly when a nasoseptal flap is required for skull base reconstruction. Post-operative radiological sinonasal findings have been reported previously with no clear correlation with intraoperative decision-making.

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Context: The hypothalamic-pituitary-adrenal axis is a critical regulator of circadian rhythm in humans. Impaired sleep adversely affects metabolic, emotional, and cognitive health.

Objective: To characterize sleep disturbances in patients with active and treated Cushing's syndrome (CS), and identify factors associated with impaired sleep in treated patients.

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Keloids, characterized by excessive scar formation following dermal inflammation, pose a therapeutic challenge due to high recurrence rates. Radiation therapy, contraindicated in children, can minimize recurrence post-surgical removal. Dupilumab, which inhibits the pro-fibrotic interleukin-4/interleukin-13 axis, may effectively manage keloids when intralesional corticosteroid injections are unsuccessful.

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Intraoperative anti-A/B immunoadsorption (ABO-IA) was recently introduced for ABO-incompatible (ABOi) heart transplantation. Here we report the first case of a patient transplanted with ABO-IA, that was of an age and weight that required two ABO-IA columns run in parallel, to enable the reduction in antibody titres to a sufficiently low level in the time available during implantation of the donor organ.

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Background: We evaluate outcomes of SMARCB1-deficient sinonasal carcinomas in the largest single-institution study.

Methods: Retrospective cross-sectional study of patients with SMARCB1-deficient sinonasal carcinoma between 1998 and 2024. Disease-specific survival (DSS) and recurrence-free probability (RFP) at 1 and 5 years were measured by Kaplan-Meier method.

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Alcohol septal ablation (ASA) has been widely used in relieving the left ventricular outflow tract (LVOT) obstruction caused by hypertrophic obstructive cardiomyopathy (HOCM). There is limited data about the utility of ASA in cases of cardiac amyloidosis with LVOT obstruction. Our patient is 71-year-old male with a history of multiple myeloma complicated by cardiac amyloidosis and end-stage renal disease on hemodialysis who presented from the dialysis center due to hypotension.

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  • - Maxillary reconstruction is complicated due to 3D surgical sites and various tissue deficiencies, but advancements in virtual surgical planning (VSP) have improved the accuracy and efficiency of the process, allowing for better bony reconstructions and immediate dental implant placements (IDIP).
  • - The study developed a new workflow that combines VSP, 3-D printed plates, and IDIP, reviewing patients from 2017-2022 who received osseous maxillary reconstruction using fibula flaps.
  • - Results showed high success with only one dental implant failure and manageable complications, allowing most patients to obtain stable dental prostheses and ensuring no delays in their cancer treatment.
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  • The article features a collaboration between a patient with acute coronary syndrome (ACS) and a cardiologist, providing insights from both perspectives on managing the condition.
  • The patient shares his journey from diagnosis to ongoing treatment, expressing concerns about the pros and cons of long-term antiplatelet therapy and highlighting his role as a cardiac health advocate.
  • The cardiologist elaborates on the advantages and potential risks of antiplatelet therapies, addressing challenges in treatment adherence and suggesting ways to improve medication prescribing practices among physicians.
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  • Acanthosis nigricans (AN) is a skin condition affecting about 19.4% of people in the U.S., characterized by dark, velvety patches mainly in skin folds, which can negatively impact mental health, particularly among individuals with skin of color.
  • The review evaluated 19 clinical trials on various treatments for AN, emphasizing the need for skin-focused therapies when addressing underlying causes proves difficult.
  • Strong recommendations include the use of topical tretinoin (grade A) and suggested uses of adapalene gel, urea cream, and fractional carbon dioxide laser therapy (grade B), with further research needed to explore additional treatment options.
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Background: Pleomorphic adenoma (PA) is a common parotid tumor, yet due to the relative rarity of deep lobe PA (DLPA), there is a paucity of information about its clinical presentation and surgical outcomes.

Methods: We reviewed the charts of patients with previously untreated parotid PA between the years 1990 and 2015. Clinical parameters and surgical outcomes were compared between superficial lobe PA (SLPA) and DLPA.

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With the establishment and growth of the Emergency Medical Services (EMS) subspecialty, significant attention has been focused on clinical activities performed by EMS physicians in the out-of-hospital environment. An EMS fellowship includes special operations education to develop preparedness for responding to field situations requiring physician expertise. With only a thousand Board Certified EMS physicians in North America, EMS physicians may not be available 24 h per day to respond to field emergencies.

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  • * A study reviewed 21 clinical trials on AN treatments, revealing that 69% of participants were female, yet there was a lack of data on race and ethnicity, emphasizing a notable gap in representation.
  • * Only a small percentage of participants represented various Fitzpatrick skin types, with none from the extremes (type I or VI), indicating the urgent need for more comprehensive inclusion criteria to ensure effective and equitable treatment options for all AN patients.
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Acne vulgaris is a common chronic dermatological condition characterized by obstruction and inflammation of pilosebaceous units. Recent research on a different dermatologic condition has demonstrated that the use of vasodilatory medications is associated with a decreased relative risk of rosacea. This finding is significant due to the overlapping inflammatory pathways involved in rosacea and acne.

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