Publications by authors named "Michael H Fritsch"

Trautmann's triangle (TT) faces the cerebellopontine angle and is exposed during posterior transpetrosal approaches. However, reports on the morphometric analysis of this structure are lacking in the literature. The goal was to better understand this important operative corridor.

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Objective: Report a case of loss of cochlear implant benefit after cisplatin therapy to treat osteosarcoma. Examine the implications for the loci of cisplatin-associated cochleotoxicity.

Study Design: Retrospective case review.

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Hypothesis: Exposure to certain new surgical instruments and operating room devices during procedures could cause hearing damage to patients and personnel.

Background: Surgical instruments and related equipment generate significant sound levels during routine usage. Both patients and physicians are exposed to these levels during the operative cases, many of which can last for hours.

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Endoscopy of the inner ear.

Otolaryngol Clin North Am

December 2009

Endoscopic surgery of the inner ear may be a useful, minimally invasive approach to remove pathologic lesions and yet retain inner ear function. Several different endoscopic inner ear surgical entry sites and strategies that may help to preserve otologic function are described. These endoscopic surgical method alternatives are based on temporal bone studies, prior literature, and clinical patient experiences.

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Incisionless otoplasty.

Otolaryngol Clin North Am

December 2009

Incisionless Otoplasty surgery for lop (protuberant) ears has evolved through three major steps in technique since its inception in 1992. Improvement was seen with each progressive technical advance. The previously published 2.

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Algorithms for treatment of salivary stones for physicians without access to an extracorporeal lithotriptor are proposed. Strategies for stones of different sizes and for salivary duct stenoses and strictures are discussed.

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Salivary gland preservation during treatment for obstructive duct and gland problems is a goal worth pursuing. Difficult cases may seem to be candidates for sialadenectomy. However, progress in endoscopic and open-surgical procedures can help the physician to find solutions that overcome difficult problems without removing the gland.

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This article presents a brief literature review of sialendoscopy and lithotripsy highlights from journal articles and presentations spanning from 1953 to 2009. Seventy-seven sources were reviewed for this article.

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Hypothesis: That an osteointegrated Bone-anchored Hearing Aid (BAHA System) will show movement or displacement when exposed to a 9.4-T magnetic resonance imaging (MRI) magnet and that any movement may have implications for patient safety and image quality.

Background: BAHA System implanted patients may require MRI scans for various pathologies.

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Objective: To create the first ever stapes prosthesis phylogenetic tree for the evolution of the stapes prosthesis.

Study Design: Retrospective literature review, personal interviews.

Setting: University Medical Center.

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Facial Nerve (FN) paralysis and its morbidities can result from a wide variety of etiologies. Several novel surgical procedure methods for remediation of FN paralysis problems, using Incisionless technique are presented. The procedures are minimally-invasive and well-tolerated by patients.

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Objective: Physicians and patients alike have concerns regarding exposing in vivo implanted metal stapes prostheses to magnetic resonance imaging (MRI) scanners. As MRI scanners become more powerful, the possibility for stapes prosthesis displacement due to ferromagnetic forces increases. It is hypothesized that some metal stapes prostheses may be exposed to powerful MRI scanners without leading to potential adversities for patients.

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MRI compatibility issues in otology.

Curr Opin Otolaryngol Head Neck Surg

October 2007

Purpose Of Review: The increasing magnet strengths used for MRI scanning combined with a greater number and variety of otologic prostheses can lead to possible safety issues. This review examines the specific issues and the conclusions of 33 referenced studies examining those issues.

Recent Findings: Variability of interactions between otologic implants and MRI scanners requires specific considerations for individual prostheses and magnet strengths.

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OBJECTIVE:: Physicians and patients alike have concerns regarding exposing in vivo implanted metal stapes prostheses to magnetic resonance imaging (MRI) scanners. As MRI scanners become more powerful, the possibility for stapes prosthesis displacement due to ferromagnetic forces increases. It is hypothesized that some metal stapes prostheses may be exposed to powerful MRI scanners without leading to potential adversities for patients.

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Hypothesis: A 9.4-T magnetic resonance (MR) field may cause motion displacement of the middle ear and stapes implants not previously observed with 1.5- and 3.

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Hypothesis: A 3-T magnetic resonance field may cause motion or displacement of middle ear implants not seen in studies with 1.5-T magnets.

Background: Previous publications have described the safety limitations of some otologic implants in 1.

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Incisionless otoplasty.

Facial Plast Surg

November 2004

Otoplasty surgery for correction of the "lop" protuberant ear deformity continues to evolve. A noninvasive method for achieving normal appearance and physiology for the protuberant ear pinna is presented. Incisionless Otoplasty surgery, involving a combined cartilage scoring procedure and a percutaneously placed retention suture procedure, creates a predictable and permanent correction of the missing antihelical fold.

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