Publications by authors named "Greg A Krempl"

Background: Advanced squamous cell carcinoma (SCCa) of the oral cavity is often not amenable to curative-intent therapy due to tumor location, tumor size, or comorbidities.

Case Presentation: A 51-year-old male patient with human immunodeficiency virus and on highly active antiretroviral therapy (HAART) presented with a cT4aN2c SCCa of the tongue. He received a preoperative single course of Quad-Shot radiation therapy to 14 Gy in 4 fractions followed by surgical resection.

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 Standard techniques for primary dural repair following lateral skull base surgery are both technically challenging and time consuming without the potential for primary dural repair. Inadequate closure may result in postoperative cerebrospinal fluid (CSF) leak infectious sequalae. Traditional methods of dural repair rely on secondary obliteration of the CSF fistula.

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Genetic, symptomatic, and biochemical heterogeneity of patients with primary hyperparathyroidism (PHPT) has become apparent in recent years. An in-depth, evidence-based review of the phenotypes of PHPT was conducted. This review was intended to provide the resulting information to surgeons who operate on patients with hyperparathyroidism.

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The coronavirus disease-2019 (COVID-19) pandemic has rapidly spread across the world, placing unprecedented strain on the health care system. Health care resources including hospital beds, ICUs, as well as personal protective equipment are becoming increasingly rationed and scare commodities. In this environment, the laryngectomee (patient having previously undergone a total laryngectomy) continues to represent a unique patient with unique needs.

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Anterior cervical discectomy and fusion (ACDF) is the most common surgical procedure utilized for degenerative diseases of the cervical spine. The authors present the case of a 64-year-old man who underwent an ACDF for degenerative changes causing cervical stenosis with myelopathy. The patient's symptoms consisted of pain and weakness of the bilateral upper extremities that slowly progressed over 1.

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Background: Cancer cachexia affects up to over 50% of advanced head and neck cancer (HNC) patients. To date, the potential utility of anabolic steroids in perioperative cachectic HNC patients has not been determined.

Methods: Retrospective review of pre- and post-oxandrolone administration prealbumin levels in 18 perioperative HNC patients between October 2007 and October 2014 at a tertiary academic medical center.

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Objectives: To evaluate the diagnostic performance of ultrasound (US)-guided fine-needle aspiration with optional core needle biopsy of head and neck lymph nodes and masses, with attention to differences between biopsy of treated squamous cell carcinoma (SCC) and biopsy of other lesions.

Methods: Institutional Review Board approval was obtained, and the need for consent was waived for this retrospective study. All 861 US-guided biopsies of head and neck lymph nodes and masses performed between March 1, 2012, and May 16, 2016, were reviewed.

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Objectives: Preferential use of fine-needle aspiration (FNA) versus core needle biopsy (CNB) for distinguishing benign from malignant major salivary gland tumors is highly debated. The main disadvantage of FNA is lower sensitivity, whereas arguments against CNB include use of a larger bore needle and greater risk of complications. The aim of this study is to evaluate our experience performing ultrasound-guided (UG) FNA with selective use of CNB based on preliminary cytopathology, and to determine whether our preoperative diagnostic approach is more sensitive and specific than FNA alone-and at least as sensitive and specific as CNB alone.

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Here we present the case of a 36-year-old man who was found to have a symptomatic malignant neural sheath tumor growing from the C2 nerve root following a period of progressively worsening headaches. The patient was successfully treated with surgical resection resulting in resolution of cranial nerve deficits. Though uncommon, malignant peripheral nerve sheath tumor must be considered in the differential diagnosis of tumors involving the cervical nerve roots and carotid space.

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Context: The 15-item University of Washington Quality of Life questionnaire-Radiation Therapy Oncology Group (RTOG) modification (UW-QOL-RTOG modification) has been used in several trials of head and neck cancer conducted by NRG Oncology such as RTOG 9709, RTOG 9901, RTOG 0244, and RTOG 0537.

Objectives: This study is an exploratory factor analysis (EFA) to establish validity and reliability of the instrument subscales.

Methods: EFA on the UW-QOL-RTOG modification was conducted using baseline data from NRG Oncology's RTOG 0537, a trial of acupuncture-like transcutaneous electrical nerve stimulation in treating radiation-induced xerostomia.

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Purpose: The purpose of this secondary analysis was to determine change in overall health-related quality of life (HRQOL) based on patient data obtained from NRG Oncology RTOG 0537 as measured by the RTOG-modified University of Washington Head and Neck Symptom Score (RM-UWHNSS).

Methods: A multi-site prospective randomized clinical trial design stratified 137 patients with post-radiation therapy xerostomia according to prior pilocarpine (PC) treatment and time after radiation therapy and/or chemotherapy and randomized patients into two groups. Patients were assigned to acupuncture or PC.

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Objectives/hypothesis: Salvage laryngectomy after failed organ preservation often has a high complication rate, pharyngocutaneous fistulas being the most common. These fistulas increase morbidity, prolong hospitalization, and potentially delay adjuvant treatment. Fistula rates in the literature range from 3% to 65%.

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Aim: To determine the rate of use and non-use of prophylactic percutaneous endoscopic gastrostomy (PEG) tubes among patients with head and neck cancer (HNC) patients.

Methods: All patients with HNC undergoing PEG between January 1, 2004 and June 30, 2006 were identified. Patients (or their next-of-kin) were surveyed by phone and all available medical records and cancer registry data were reviewed.

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Objective: We report a series of patients treated for carcinoma of the tonsil who either presented with bilateral carcinomas or later developed a second primary carcinoma of the contralateral tonsil. This report raises awareness of this occurrence.

Study Design: Case series.

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Background: The use of intratympanic (IT) steroids for the treatment of inner ear disorders is promising, but the clinical challenges of prolonged middle ear drug application have proven burdensome, and a sustainable delivery system is yet to be developed.

Method: In this study, a guinea pig model was used to determine if dexamethasone in combination with a hyaluronic-acid (HA)-based hydrogel is an efficient, stable and sustainable dexamethasone delivery system to the inner ear. For each animal, right and left middle ear bullae were randomly selected to be filled with dexamethasone alone or dexamethasone-HA (Dex-HA) gel.

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Osteonecrosis of the jaw is an uncommon consequence of biphosphonate therapy. This has most commonly been a bone complication with little if any soft tissue involvement. An unusual case of necrotizing fasciitis with extensive soft tissue infection stemming from a prolonged case of osteonecrosis of the jaw presented.

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Background: Our aim was to determine the feasibility and safety of initiating early oral feeding in patients who underwent salvage laryngectomy on postoperative day 5 and to review the rate of pharyngocutaneous fistula formation.

Methods: A retrospective review of 29 patients who underwent salvage laryngectomy was completed. Patients included in the study had radiation therapy +/- chemotherapy for laryngeal squamous cell carcinoma with subsequent total laryngectomy.

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Objectives/hypothesis: To assess the efficacy of paclitaxel, ifosfamide, and cisplatinum induction chemotherapy plus concurrent chemoradiation in the treatment of stage III and IV base of tongue cancer.

Study Design: Subgroup analysis of patients with base of tongue cancer enrolled in a single-institution prospective phase II trial, evaluating an organ-preservation approach in the treatment of locally advanced head and neck cancer.

Methods: Eighteen patients with tumors ranging from stage T2-T4, any N, or M0 were treated with a protocol of induction chemotherapy, with Taxol, ifosfamide, cisplatin every 21 days for up to three cycles.

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Objective: The aim of this study was to determine the accuracy of the fluorine 18 ((18)F)-labeled fluorodeoxyglucose positron emission tomography/computed tomography (FDG-PET/CT) scan in the evaluation of thyroid nodules in which the cytopathology of fine-needle aspiration (FNA) biopsies are classified as "indeterminate," ie, either follicular or Hürthle cell lesion.

Methods: At an academic medical center, we conducted a prospective pilot study of 15 patients with thyroid nodules in whom adequate FNA was diagnosed as indeterminate. All patients underwent a whole-body FDG-PET/CT scan followed by thyroidectomy.

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Objective: The objective of this study was to report the long-term efficacy of radiofrequency volumetric tissue reduction (RFVTR) and to compare this with other accepted surgical treatments of inferior turbinate hypertrophy.

Study Design And Setting: Prospective, 2-year follow-up of 19 patients originally enrolled in a prospective, randomized, single blinded, placebo controlled trial for treatment of inferior turbinate hypertrophy with RFVTR. Patients evaluated their severity of obstruction, frequency of obstruction, and overall ability to breathe by way of a 10 cm visual analogue scale.

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The goal of this study was to identify clinical characteristics and concurrent medications associated with an increased or decreased incidence of cisplatin-induced nephrotoxicity. The medical records for 62 subjects with head and neck cancer who received cisplatin 100 mg/m2 (day 1) plus fluorouracil 1000 mg/m2 (days 1-5) with or without radiation therapy were reviewed from three medical centers. The demographics, concurrent medication therapy, co-existing illnesses and clinical laboratory values were extracted from the medical records.

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Objective: To analyze patients with "normal" baseline quick intraoperative parathyroid hormone (QPTH) levels during parathyroidectomy and to determine the prevalence of this finding, the usefulness of the assay in this situation, and to explain the possible causes for this phenomenon.

Study Design And Setting: Patients who underwent parathyroidectomy using QPTH in a tertiary hospital.

Methods: Retrospective analysis of 39 patients treated surgically for primary hyperparathyroidism using QPTH.

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Objectives: We sought to evaluate the short-term efficacy of radiofrequency volumetric tissue reduction (RFVTR) in treating nasal obstruction in subjects with inferior turbinate hypertrophy.

Study Design And Setting: We conducted a prospective, randomized, single-blinded, placebo-controlled trial with crossover option, involving 32 patients and performed in a clinical office setting at the University of Oklahoma Medical Center.

Results: The outcomes were measured using 10-cm visual analog scales (VASs) before treatment and at 8 weeks and 6 months posttreatment.

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