Francisco Vieira
University of Tennessee Health Science Center
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Featured researches published by Francisco Vieira.
Head and Neck-journal for The Sciences and Specialties of The Head and Neck | 2000
K. Thomas Robbins; Parvesh Kumar; Frank S. H. Wong; William F. Hartsell; Pamela A. Flick; Robert Palmer; Alva B. Weir; H. Barry Neill; Thomas Murry; Robert Ferguson; Catherine Hanchett; Francisco Vieira; Andrew J. Bush; Stephen B. Howell
To determine the survival results, patterns of relapse, and organ preservation effects of a targeted chemoradiation protocol for patients with advanced (stage III–IV) carcinoma of the head and neck.
Otolaryngologic Clinics of North America | 2008
Francisco Vieira; Shawn M. Allen; Rose Mary S. Stocks; Jerome W. Thompson
Deep neck infections present significant morbidity and mortality, particularly when associated with predisposing factors that impair a functional immunologic response. Familiarity with deep neck spaces and fascial planes is critical, because these form the basis for the emergent nature of the disease process. Common and potentially life-threatening complications include airway obstruction, jugular vein thrombosis, descending mediastinitis, sepsis, acute respiratory distress syndrome, and disseminated intravascular coagulation. The most common primary sources of deep neck infection are odontogenic, tonsillar, salivary gland, foreign body, and malignancy. Microbiology typically reveals mixed bacterial flora, including anaerobic species, that can rapidly progress to a fulminating necrotizing fasciitis. The treatment cornerstone remains securing the airway, providing efficient drainage and appropriate antibiotics, and improving immunologic status. A prolonged hospital stay should be anticipated.
Head and Neck-journal for The Sciences and Specialties of The Head and Neck | 1999
Sandeep Samant; Parvesh Kumar; Jim Y. Wan; Cathy Hanchett; Francisco Vieira; Tom Murry; Frank S. H. Wong; K. Thomas Robbins
Squamous cell carcinoma of the pyriform sinus is an unfavorable disease which frequently presents in advanced stages. Despite aggressive “standard treatment” involving debilitating surgery and postoperative radiation therapy treatments, the survival and functional outcome for pyriform sinus carcinoma remains poor. Hence, we reviewed our experience in the management of advanced pyriform sinus carcinoma using “organ preservation” chemoradiation therapy.
Otolaryngology-Head and Neck Surgery | 2002
Jonathan Staton; K. Thomas Robbins; Lisa A. Newman; Sandeep Samant; Merry Sebelik; Francisco Vieira
OBJECTIVE: The study goal was to determine whether pretreatment parameters can be used to predict poor outcomes related to laryngeal function among survivors after organ preservation therapy for advanced laryngeal cancer. DESIGN: A retrospective analysis of patients treated in an ongoing chemoradiation trial. SETTING: Academic tertiary care referral medical center. PATIENTS AND METHODS: Among the 65 patients receiving concomitant intra-arterial cisplatin and radiation therapy for stage III and IV laryngeal cancer between 1993 and 1999, we identified 45 who were available for follow-up and were disease free 6 months after the completion of therapy. A nominal logistic regression analysis was performed to study the effect of age, gender, T and N classification, vocal cord fixation, massive cartilage destruction, and neck dissection on the likelihood of requiring a tracheostomy tube for breathing and/or a gastrostomy tube for feeding at 6 months after the completion of therapy. MAIN OUTCOME MEASURE: Persistent use of gastrostomy tube feedings and/or tracheostomy at 6 months after the completion of therapy. RESULTS: Sixteen patients (36%) required a feeding tube and/or a tracheostomy (tracheostomy 13, gastrostomy 13, both 10). Regression analysis of all pretreatment factors indicated vocal cord fixation as being the strongest predictor of a poor functional outcome (defined as the persistent need for a feeding tube and/or tracheostomy at 6 months after therapy). Among the 27 patients in this subset, 15 (56%) had a poor functional outcome. In contrast, only 1 (6%) of 18 patients without vocal cord fixation had poor laryngeal function. Although the history of pulmonary disease was not a significant parameter by itself, when combined with vocal cord fixation, 6 of 8 patients had a poor functional outcome. CONCLUSION: Pretreatment parameters may be used to predict a poor functional outcome after chemoradiation. Because of the high likelihood of poor function, laryngeal cancer patients seeking organ preservation therapy with chemoradiation should be cautioned if they present with a fixed vocal cord.
Laryngoscope | 2005
Khwaja Asif Ahmed; Sandeep Samant; Francisco Vieira
Objectives: To measure the percentage of patients requiring gastrostomy tubes (G‐tubes) and the timing of their placement, in addition to studying whether pretreatment variables (T stage, tumor site, N stage) and intratreatment variables (weight loss during treatment) are valid predictors for the need for G‐tube placement.
Oral Oncology | 2012
K. Thomas Robbins; Muthuswamy Dhiwakar; Francisco Vieira; Krishna Rao; James Malone
BACKGROUND Hypothesizing that neck-level specific locations of residual lymph node metastases following chemoradiation for head and neck cancer are highly predictable, the efficacy of the more targeted lymphadenectomy procedure called super-selective neck dissection (SSND) was evaluated. METHODS A retrospective analysis of the databases from 2 institutions indicated that 35 SSNDs were performed on 30 patients following chemoradiation as either a planned or early salvage intervention. RESULTS Over a median follow-up of 33 (range: 8-72) months, 8 patients developed recurrent disease (3 primary, 5 distant) but there were no isolated recurrences in the neck. The projected 5 year disease specific survival rate for the group was 60%. CONCLUSIONS SSND is an effective intervention for patients with advanced head and neck cancer treated with chemoradiation whose risk for residual nodal disease is confined to one level.
Head and Neck-journal for The Sciences and Specialties of The Head and Neck | 2012
Muthuswamy Dhiwakar; K. Thomas Robbins; Francisco Vieira; Krishna Rao; James Malone
The aim of this study was to determine the efficacy of selective neck dissection (SND) performed for persistent nodal disease after chemoradiation.
Laryngoscope | 2004
K. Thomas Robbins; Ilana Doweck; Sandeep Samant; Francisco Vieira; Parvesh Kumar
Objectives To determine the relative risk of prognostic factors for local disease control following RADPLAT.
World Journal of Surgical Oncology | 2008
Ilana Doweck; K. Thomas Robbins; Sandeep Samant; Francisco Vieira
BackgroundSurgery followed by radiotherapy is the standard of care for resectable locally advanced oral cavity squamous cell carcinoma (SCC). We report the treatment outcomes of patients with T3-T4 SCC of the oral cavity treated with chemoradiation, an alternative approach.Patients and methodsFrom a series of 240 patients with stage III-IV carcinoma of the upper aerodigestive tract who were treated consecutively according to the RADPLAT protocol, a subset analysis of 155 patients with T3-T4 SCC (Oral cavity SCC N = 22, oropharynx SCC N = 94 and hypopharynx SCC N = 39), was performed. The goal was to test the hypothesis that oral cavity SCC treated with chemoradiation has similar outcomes to the two comparison sites.ResultsWith a median follow-up of 58 months, local disease control was 69% and the overall survival was 37%. In comparison, local disease control for the oropharynx and hypopharynx groups was 86% and 79% respectively. The overall survival rate for the oropharyngeal and hypopharyngeal groups were 41% and 6% respectivelyConclusionPatients with locally advanced oral cavity cancer treated with the chemoradiation protocol RADPLAT have outcomes that are equal or better compared to patients with similar disease involving the oropharynx and hypopharynx
Head and Neck-journal for The Sciences and Specialties of The Head and Neck | 2011
Muthuswamy Dhiwakar; K. Thomas Robbins; Krishna Rao; Francisco Vieira; James Malone
Our aim in carrying out this study was to determine the efficacy of selective neck dissection (SND) for cervical metastases with clinical involvement of adjacent nonlymphatic structures.