Publications by authors named "Karl Doerfer"

Purpose Of Review: Children experiencing dizziness frequently go unevaluated or experience delays in correct diagnosis due to systemic and inherent barriers. While most causes of pediatric dizziness do not involve the peripheral vestibular system, otolaryngologists are frequently consulted for expert opinion. This study offers a broad overview of the leading causes of pediatric dizziness and imbalance to assist otolaryngologists with evaluating and managing this challenging population.

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Objective: To compare observation of otologic surgery using a traditional operating microscope (OM) and a three-dimensional exoscope.

Study Design: Prospective, nonrandomized, noncontrolled study.

Setting: Tertiary care center.

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Objective: Audiometric outcomes at 12 months following simultaneous translabyrinthine (TL) resection of vestibular schwannoma (VS) and cochlear implantation (CI).

Study Design: Prospective cohort study.

Setting: Tertiary referral center.

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Objective: Describe practice patterns in preoperative assessment for stapedectomy.

Study Design: Survey.

Setting: Tertiary referral center.

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Objective: Assess opinions that influence treatment choice for single sided deafness (SSD).

Study Design: Retrospective chart review.

Setting: Tertiary neurotology referral center.

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Objective: Report an association between congenital stapes footplate fixation (CSFF) and radiological absence of the pyramidal eminence and stapedial tendon.

Patients: Children and adults with intraoperatively confirmed CSFF and an absent stapedial tendon.

Interventions: Computed tomography (CT); exploratory tympanotomy with stapedotomy.

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Proper ventilation of a patient with an endotracheal tube (ETT) requires proper placement of the ETT. We present a sensitive, noninvasive, operator-free, and cost-effective optical sensor, called Opt-ETT, for the real-time assessment of ETT placement and alerting of the clinical care team should the ETT become displaced. The Opt-ETT uses a side-firing optical fiber, a near-infrared light-emitting diode, two photodetectors with an integrated amplifier, an Arduino board, and a computer loaded with a custom LabVIEW program to monitor the position of the endotracheal tube inside the windpipe.

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Objectives: To evaluate the efficiency of in-house genetic testing for mutations causing the most common types of inherited, nonsyndromic, sensorineural hearing loss (SNHL).

Methods: Retrospective cohort study of 200 patients at a single, pediatric medical center with suspected or confirmed hearing loss who underwent either send out vs in-house genetic testing for mutations in GJB2/GJB6, SLC26A4, and MTRNR1. Primary outcome measure was the difference in mean turnaround time for send-out vs in-house genetic testing.

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Multiple clinical risk prediction tools for hospital acquired venous thromboembolism (HA-VTE) have been developed. The objectives of this study were to develop and assess the feasibility of data extraction from Electronic Medical Records (EMR) from an enterprise database warehouse (EDW) and to test the validity of a previously developed Pediatric Clot Decision Rule (PCDR). This single-center prospective observational cohort study was conducted between March 2016 and March 2017 and included eligible patients admitted to the intensive care units.

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Objective: To report outcomes following modified tympanomastoidectomy with soft-wall reconstruction (MTMSWR).

Study Design: Retrospective cohort.

Setting: Tertiary referral center.

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Objectives To describe trends in disparities research within pediatric otolaryngology as evidenced by major meeting presentations and to compare observed trends with those in the realm of patient safety and quality improvement (PSQI). Study Design Retrospective review of presentations at national otolaryngology meetings. Setting Online review of meeting programs.

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