Publications by authors named "Leichtle A"

Article Synopsis
  • Diced cartilage (DC) is important in rhinoplasty for creating a framework used in nasal dorsal augmentation, and two methods of applying DC were tested in 15 patients.
  • Postoperative ultrasounds showed that all patients had detectable DC, with a notable reduction in perifocal edema over the year, while the grafts remained intact and did not migrate.
  • High-resolution ultrasound and color Doppler imaging proved effective for visualizing DC and detecting new blood vessel formation in the grafts post-surgery.
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This study investigated sound localization abilities in patients with bilateral conductive and/or mixed hearing loss (BCHL) when listening with either one or two middle ear implants (MEIs). Sound localization was measured by asking patients to point as quickly and accurately as possible with a head-mounted LED in the perceived sound direction. Loudspeakers, positioned around the listener within a range of +73°/-73° in the horizontal plane, were not visible to the patients.

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  • Chronic Otitis Media (COM) is a long-term ear infection caused by bacteria due to issues with the eardrum and often involves antibiotic resistance.
  • Research evaluated the natural drug 1,8-Cineol as an off-label treatment for COM, showing it reduced harmful bacteria and led to better health outcomes in some patients.
  • This study highlights the anti-inflammatory benefits of 1,8-Cineol, suggesting potential improvements in treatment options for COM with further investigation into how it works.
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Background: Head and neck squamous cell carcinoma (HNSCC) represents a common and heterogeneous malignancy of the oral cavity, pharynx and larynx. Surgery and radio(chemo)therapy are the standard treatment options and also have great influence on the composition of the tumor microenvironment and immune cell functions. However, the impact of radio(chemo)therapy on the distribution and characteristics of circulating monocyte subsets in HNSCC are not fully understood.

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Background: Peripheral blood monocytes can be subdivided into different subsets based on the CD14/CD16 surface characteristics. Monocytes are a major source of cytokine secretion of pro-inflammatory immune responses, whereas CD16 monocyte subsets can also contribute to persistent inflammation in the context of chronic diseases. However, the regulation and cellular characteristics of circulating monocyte subsets in patients with chronic otitis media (COM), one of the largest public health burdens, remains largely unknown.

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Hypothesis: The middle ear (ME) epithelium transforms because of changed immunomodulation during infection.

Introduction: The epithelial cells of the tympanic cavity represent the first line of defense in the context of otitis media. They can convert from a typical mucosal site into a respiratory epithelium and vice versa.

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Article Synopsis
  • The objective of the review is to summarize recent key articles on animal models, cell cultures, and tissue engineering techniques related to otitis media (OM) over the last four years.
  • Data was gathered from databases like PubMed, focusing on studies published between June 2019 and June 2023, with a comprehensive assessment conducted by a panel of experts.
  • The findings indicate significant advancements in research models for OM, including innovative genetic tools and improved mouse models, which are expected to lead to rapid developments in understanding OM and potential new therapies in the coming years.
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  • The article DOI: 10.2196/47254 contained inaccuracies that needed to be addressed.
  • The correction aims to clarify specific findings or data presented in the original article.
  • This adjustment ensures the integrity and accuracy of the research shared with the public.
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  • - This study explores whether women with genital HPV infections have a higher risk of also having undetected oropharyngeal HPV infections, which can lead to cancer if not cleared by the immune system.
  • - Researchers conducted HPV tests on 142 women during routine gynecological checkups and assessed possible risk factors via a questionnaire.
  • - Results showed that only 1.4% of women had oropharyngeal HPV, while 38% tested positive for genital HPV, with 29% identified as high-risk types.
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Background: Reference intervals (RIs) for patient test results are in standard use across many medical disciplines, allowing physicians to identify measurements indicating potentially pathological states with relative ease. The process of inferring cohort-specific RIs is, however, often ignored because of the high costs and cumbersome efforts associated with it. Sophisticated analysis tools are required to automatically infer relevant and locally specific RIs directly from routine laboratory data.

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(1) Background: to report on the use of high-dose-rate (HDR) interventional radiotherapy (brachytherapy, IRT) as a salvage treatment for patients with regionally relapsed head and neck cancers. (2) Methods: A retrospective study of 60 patients treated with HDR-IRT for loco-regionally relapsed head and neck cancers at our institution (2016-2020). Treatment procedure, results, and related toxicities were collected.

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Antibody testing in inflammatory bowel disease (IBD) can add to diagnostic accuracy of the main subtypes Crohn's disease (CD) and ulcerative colitis (UC). Whether modern modeling techniques such as supervised and unsupervised machine learning are of value for finer distinction of subtypes such as IBD-unclassified (IBD-U) is not known. We determined the antibody profile of 100 adult IBD patients from the Swiss IBD cohort study with known subtype (50 CD, 50 UC) as well as of 76 IBD-U patients.

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Objectives: The objective of this study is the exploration of Artificial Intelligence and Natural Language Processing techniques to support the automatic assignment of the four Response Evaluation Criteria in Solid Tumors (RECIST) scales based on radiology reports. We also aim at evaluating how languages and institutional specificities of Swiss teaching hospitals are likely to affect the quality of the classification in French and German languages.

Methods: In our approach, 7 machine learning methods were evaluated to establish a strong baseline.

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The monoterpene 1,8-Cineol is a natural plant-based therapeutic agent that is commonly applied to treat different inflammatory diseases due to its mucolytic, anti-microbial and anti-inflammatory properties. It has become increasingly clear in the recent years that 1,8-Cineol spreads almost everywhere in the human body after its oral administration, from the gut to the blood to the brain. Its anti-microbial potential and even its anti-viral effects have been observed to include numerous bacteria and fungi species.

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Patients with head and neck squamous cell carcinoma (HNSCC) continue to have a rather poor prognosis. Treatment-related comorbidities have negative impacts on their quality of life. TRIM21 is a cytosolic E3 ubiquitin ligase that was initially described as an autoantigen in autoimmune diseases and later associated with the intracellular antiviral response.

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Chronic rhinosinusitis with nasal polyps (CRSwNP) is a common inflammatory disease causing considerable disease burden. The anti-inflammatory monoterpene 1,8-Cineol is a natural plant-based therapeutic agent that is well established to treat chronic and acute airway diseases. Aim of this study was to investigate whether the herbal drug 1,8-Cineol reaches the nasal tissue via the gut and the blood stream upon its oral administration.

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Current evidence on COVID-19 prognostic models is inconsistent and clinical applicability remains controversial. We performed a systematic review to summarize and critically appraise the available studies that have developed, assessed and/or validated prognostic models of COVID-19 predicting health outcomes. We searched six bibliographic databases to identify published articles that investigated univariable and multivariable prognostic models predicting adverse outcomes in adult COVID-19 patients, including intensive care unit (ICU) admission, intubation, high-flow nasal therapy (HFNT), extracorporeal membrane oxygenation (ECMO) and mortality.

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Introduction: Patients with otitis media (OM) encounter significant functional hearing impairment with conductive, or a combined hearing loss and long-term sequelae involving impaired speech/language development in children, reduced academic achievement and irreversible disorders of middle and inner ear requiring a long time therapy and/or multiple surgeries. In its persistent chronic form, Otitis media (COM) can often only be treated by undergoing ear surgery for hearing restoration. The persistent inflammatory reaction plays a major role, often caused by multi-resistant pathogens in the ear.

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Introduction: The amount of listening effort needed to understand speech in every-day life is an important outcome measure of the effectiveness of a hearing device. The main goal of this study was to assess subjective listening effort in patients implanted with an active middle ear implant Vibrant Soundbridge (VSB) with and without using their speech processor in complex acoustic scenarios.

Methods: Ten VSB users were measured using the adaptive categorical listening effort scaling (ACALES) method in four different acoustic scenarios, realized using a multichannel loudspeaker array.

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Laboratory parameters are critical parts of many diagnostic pathways, mortality scores, patient follow-ups, and overall patient care, and should therefore have underlying standardized, evidence-based recommendations. Currently, laboratory parameters and their significance are treated differently depending on expert opinions, clinical environment, and varying hospital guidelines. In our study, we aimed to demonstrate the capability of a set of algorithms to identify predictive analytes for a specific diagnosis.

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Article Synopsis
  • Otitis media (OM) is a major public health issue affecting children, especially in developing countries, prompting research to improve understanding and treatment.
  • Animal models have provided insights into the immune and inflammatory mechanisms of OM, but there is a need to connect these findings to human responses.
  • The introduction of "humanized" mice has allowed for the study of human immune responses in OM, showing that these mice can mimic normal middle ear inflammation and recovery, which could lead to better understanding and treatment strategies for children susceptible to OM.
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Background And Objective: Besides speech intelligibility, subjective listening effort is an important outcome for the success of hearing devices and their signal processing. The aim of the present study was to determine subjective listening effort for speech in a noisy background in patients with the active middle ear implant Vibrant Soundbridge (VSB) for omnidirectional and directional microphone settings, with and without occlusion of the contralateral ear.

Material And Methods: A total of 15 patients using a VSB were measured using the adaptive categorical listening effort scaling (ACALES) method in a ring of loudspeakers placed in an anechoic room.

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Objective: From January 1, 2018, until July 31, 2020, our hospital network experienced an outbreak of vancomycin-resistant enterococci (VRE). The goal of our study was to improve existing processes by applying machine-learning and graph-theoretical methods to a nosocomial outbreak investigation.

Methods: We assembled medical records generated during the first 2 years of the outbreak period (January 2018 through December 2019).

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Laboratory medicine is a digital science. Every large hospital produces a wealth of data each day-from simple numerical results from, e.g.

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