Publications by authors named "Hans S"

Objective: To compare the surgical, functional and oncological outcomes of Transoral Laser Microsurgery (TLM) and Transoral Robotic Surgery (TORS) for the treatment of supraglottic squamous cell carcinoma.

Study Design: Retrospective case series with prospective data.

Settings: Tertiary Academic Medical Center.

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Objective: To propose a European consensus for managing and treating laryngopharyngeal reflux disease (LPRD) to guide primary care and specialist physicians.

Methods: Twenty-three European experts (otolaryngologists, gastroenterologists, surgeons) participated in a modified Delphi process to revise 38 statements about the definition, clinical management, and treatment of LPRD. Three voting rounds were conducted on a 5-point scale and a consensus was defined a priori as agreement by 80% of the experts.

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Objective: To review the current literature about surgical management and postoperative outcomes of posterior glottic stenosis (PGS).

Data Sources: PubMED, Scopus, and Cochrane Library.

Methods: Three investigators conducted a comprehensive review of the literature related to the epidemiology, etiologies, and management of adult patients with PGS through the PRISMA statements.

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Excessive alcohol consumption is detrimental to human health, and it is implicated in the development of heart disease, stroke, and cancer. However, the last few decades have given rise to epidemiological evidence suggesting that low-to-moderate consumption of red wine and beer may reduce the risk of cardiovascular diseases. Studies have shown that moderate consumption of wine and beer protects against ischemic stroke, increases HDL plasma concentrations, and reduces platelet aggregation and insulin resistance.

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Objectives: To compare the presurgical to postsurgical voice quality (VQ) outcomes of types I, II, III, and VI transoral laser cordectomies (TLC).

Study Design: Prospective uncontrolled study.

Setting: Multicenter study.

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In this report, a new imidazole- and amide-functionalized pincer-like Cu(II) complex () was synthesized and characterized. By employing and 9-azabicyclo[3.3.

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Article Synopsis
  • The study aimed to gather insights from international experts on the efficacy and challenges of two minimally invasive surgical techniques, transoral laser microsurgery (TLM) and transoral robotic surgery (TORS), for treating supraglottic laryngeal tumors.
  • A survey was conducted with 27 head and neck surgeons, finding that TLM generally took less setup time compared to TORS, although both techniques faced concerns about bleeding during surgery, particularly with TLM.
  • Experts viewed TLM and TORS as largely equal in effectiveness, but noted that TORS offered better control over bleeding and improved visibility during the procedure.
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  • The study focuses on adult zebrafish that are blind due to mutations in the atoh7 gene, which prevents the formation of retinal ganglion cells (RGCs).
  • Researchers characterized the physical and behavioral traits of these mutants using various scientific techniques, noting distinct characteristics like dark pigmentation and reduced body size.
  • The findings highlight that these adult zebrafish serve as a valuable model for studying conditions like glaucoma and optic nerve aplasia by providing insights into retinal and tectal structure.
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Inflammation has been recognized as major factor for successful bone regeneration. On the other hand, a prolonged or overshooting inflammatory response can also cause fracture healing failure. The nucleotide-binding oligomerization domain (NOD)-like receptor protein (NLRP)3 inflammasome plays a crucial role in inflammatory cytokine production.

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  • - The Daya Bay experiment has successfully measured the oscillation amplitude and frequency of reactor antineutrinos over nearly 2,000 days of data, finding significant results about their behavior.
  • - They observed over 3.6 million signal candidates using improved selection and calibration methods, leading to a measurement of sin²2θ₁₃ = 0.0759 with a precision that indicates how antineutrinos change states.
  • - Combining results from different detection methods at Daya Bay, the overall measurement of sin²2θ₁₃ increased precision to 0.0833±0.0022, representing an 8% improvement in understanding these neutrino properties.
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Astrocytes are important regulators of neuronal development and activity. Their activation plays a key role in the response to many central nervous system (CNS) pathologies. However, reactive astrocytes are a double-edged sword as their chronic or excessive activation may negatively impact CNS physiology, for example, via abnormal modulation of synaptogenesis and synapse function.

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Background: This review aimed to investigate the surgical, functional, and oncological outcomes of transoral laser microsurgery supraglottic laryngectomy (TOLM-SGL) for cT1-T3 laryngeal cancers.

Methods: PubMed, Scopus, and Cochrane Library were searched by two independent investigators for studies investigating the surgical, functional, and oncological outcomes of TOLM-SGL using the PRISMA statements. A bias analysis was carried out with MINORS.

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This Letter presents results of a search for the mixing of a sub-eV sterile neutrino with three active neutrinos based on the full data sample of the Daya Bay Reactor Neutrino Experiment, collected during 3158 days of detector operation, which contains 5.55×10^{6} reactor ν[over ¯]_{e} candidates identified as inverse beta-decay interactions followed by neutron capture on gadolinium. The analysis benefits from a doubling of the statistics of our previous result and from improvements of several important systematic uncertainties.

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Objective: Zombification, a magical and religious process in Haiti, has been scientifically studied and remains relevant. Originating from the convergence of African, Caribbean, and Christian rites, it involves a comatose trance, transforming individuals into living dead through Voodoo practices. Haitian zombies consistently exhibit a preserved expression marked by a nasal voice, a result of nasalization-using nasal cavities as resonators during phonation.

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Background: Pituitary adenoma (PA), though rare, has seen increased incidence with widespread MRI use, enabling incidental diagnosis. Prevalence is approximately 1 case per 1000 in the general population. PAs are benign neoplasms, constituting 10 to 20% of intracranial tumours.

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Inflammation can lead to persistent and irreversible loss of retinal neurons and photoreceptors in mammalian vertebrates. In contrast, in the adult zebrafish brain, acute neural inflammation is both necessary and sufficient to stimulate regeneration of neurons. Here, we report on the critical, positive role of the immune system to support retina regeneration in adult zebrafish.

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We report a case of localized squamous cell carcinoma arising in the ulceration at the site of a below-knee amputation in a patient with chronic lymphocytic leukemia on treatment with ibrutinib. The patient underwent local excision of the skin and soft tissue with histopathology showing a small focus of well-differentiated squamous cell carcinoma in the specimen. This case highlights the importance of clinical evaluation and histopathological review for underlying malignancy in the setting of amputation stump ulceration.

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The inaugural total laryngectomy in history was conducted by Billroth in 1873. Nevertheless, significant enhancements to the technique were achieved through the contributions of Gluck, Sorensen, and various other surgeons. Throughout the twentieth century, advancements in anesthesia, infectious disease, hospital hygiene, antibiotic therapy, resuscitation, and the expertise of numerous laryngologists elevated total laryngectomy to a pivotal surgical intervention in head and neck surgery.

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Article Synopsis
  • - Young European otolaryngologists (OTOs) were surveyed about their views on transoral robotic surgery (TORS), revealing a 26% response rate from participants.
  • - Key barriers to TORS adoption included robot availability (73%), high costs (69%), and insufficient training (37%), while the main advantages were better surgical visibility (64%), reduced hospital stays (62%), and improved post-op outcomes (61%).
  • - Despite these challenges, 67% of TORS practitioners felt adequately trained, and there was an overall positive perception of TORS among young OTOs, especially for specific cancer types and conditions.
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  • Medullary thyroid carcinoma makes up 5% to 10% of thyroid cancers, and a unique case of its metastasis in the parapharyngeal space was treated with a new surgical approach.
  • A 42-year-old woman underwent successful removal of a sizable tumor in that area using a combination of trans-cervical and trans-oral robotic surgery, avoiding damage to critical structures.
  • This innovative method minimized complications like the need for tracheostomy or feeding tubes, with only minor dysphonia observed post-surgery, leading to a smoother recovery for the patient.
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Objective: Since 2015, Transnasal Humidified Rapid Insufflation Ventilatory Exchange (THRIVE) has been used in general anesthesia for preoxygenation or difficult exposure airway management. Its use offers new opportunities in laryngology. THRIVE increases apnea time and frees the access to the upper airway.

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Herein, using azo-amine (H2L) and azo-imine (L) ligands, singlet diradical Ni(II) complexes [1] and [2] were synthesized from Ni(0)(COD) in THF. In separate reactions, homoleptic Ni complexes, [3a]2+-[3c]2+, were synthesized from [Ni(HO)](ClO) and L, respectively. All these complexes were characterized thoroughly.

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Prostate cancer (PCa) is the second most prevalent cancer in men. In 2020, approximately 1,414,259 new cases were reported that accounted for 3,75,324 deaths (Sung et al. in CA 71:209-249, 2021).

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Herein, a new pincer-like amino phosphine donor ligand, , and its phosphine-oxide analog, , were synthesized. Subsequently, cobalt(II) complexes and were synthesized by the reaction of anhydrous Co(II)Cl with ligands and respectively. The ligands and complexes were fully characterized by various physicochemical and spectroscopic characterization techniques.

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