Publications by authors named "Felipe Bustos"

Introduction: The incidence of squamous carcinoma of the oropharynx (OPSCC) has presented an increase worldwide, a fact that occurs along with a phenomenon of epidemiological transition, whose pathogenesis is linked to human papilloma virus (HPV) in a significant part of the cases. Published evidence at the Latin American level is scarce. The present study aims to evaluate the epidemiological and clinical characteristics of patients with oropharyngeal cancer treated in a public oncology reference centre in Chile.

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Total knee arthroplasty (TKA) and total hip arthroplasty (THA) are effective treatments for severe knee and hip osteoarthritis. Historically, TKA has been associated with lower satisfaction than THA, but recent advances in knee surgery have led to lower dissatisfaction rates. This study aimed to compare the satisfaction and self-reported improvement in the quality of life of two cohorts of patients who underwent TKA and THA, respectively.

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Background Total knee arthroplasty (TKA) is a cost-effective treatment for the end-stage of knee osteoarthritis. Despite the improvements in this surgery, a significant percentage of patients still report dissatisfaction after knee arthroplasty. Radiological results have been used to predict clinical outcomes and satisfaction after knee replacement.

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The pharmacokinetics, PK/PD ratios, and Monte Carlo modeling of enrofloxacin HCl-2H O (Enro-C) and its reference preparation (Enro-R) were determined in cows. Fifty-four Jersey cows were randomly assigned to six groups receiving a single IM dose of 10, 15, or 20 mg/kg of Enro-C (Enro-C , Enro-C , Enro-C ) or Enro-R. Serial serum samples were collected and enrofloxacin concentrations quantified.

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We demonstrate backward-directed continuous-wave (cw) emission at 2.21 μm generated on the 4P-4S population-inverted transition in Na vapors that are two-photon excited with resonant laser light at 589 and 569 nm. Our study of power and atom-number-density threshold characteristics shows that lasing occurs at sub-10 mW total power of the applied laser light.

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A 22-year-old man with foot pain was referred for evaluation of sesamoiditis. A Tc-99m methylene-diphosphonate bone scan was performed which revealed increased radiopharmaceutical uptake in the big toes, but also showed curious abnormal thoracic activity. Normal activity at sternoclavicular joints and sternum mimics ears, head and body of a bat, and the pectorals mimic the wings.

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