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1.
Oral Oncol ; 132: 106019, 2022 09.
Artigo em Inglês | MEDLINE | ID: mdl-35841704

RESUMO

BACKGROUND: Fibular (FFF) and scapular free flaps (SFF) are versatile tissue transfers for head and neck reconstruction. However, their relative morbidity has been sparsely studied. The primary goal of this study was to evaluate the morbidity and patient-reported outcome measures of these two reconstructive options. MATERIALS AND METHODS: Case series of patients from 2017 to 2020 who underwent a FFF or SFF for head and neck ablation. Demographic and surgical outcome measures, such as Charlson Comorbidity Index (CCI), anesthetic time, donor site morbidity, and perioperative morbidity score (POMs) were extracted. Patients were contacted to complete the Decision Regret Scale (DRS), University of Washington Quality of Life (UW-QoL), Oral Health Impact-14, and limb specific functional outcome measures. Statistical analyses included a linear regression. RESULTS: In total, 97 FFF (mean age 58.5, 62.9% male) and 55 SFF (mean age 64.8, 63.6% male) were included. Total surgical time was higher in the SFF group (p < 0.05) and they had more comorbidities (p < 0.01). SFF patients had lower POM scores on post-operative day three (p < 0.05) while FFF patients scored better on the UW-QoL Physical Domain (p < 0.01). The DRS for both groups (FFF mean DRS 22.7, SFF mean DRS 19.2) was similar. When adjusted for patient morbidity, however, the SFF group had less decisional regret (p < 0.05). CONCLUSION: This is the largest comprehensive evaluation of patient-reported outcome measures for FFF and SFFs. SFFs required longer surgical times but had less early morbidity than FFFs. Patients who underwent either reconstructions reported mild decisional regret, proving these are generally well tolerated procedures.


Assuntos
Retalhos de Tecido Biológico , Neoplasias de Cabeça e Pescoço , Procedimentos de Cirurgia Plástica , Feminino , Retalhos de Tecido Biológico/cirurgia , Neoplasias de Cabeça e Pescoço/etiologia , Neoplasias de Cabeça e Pescoço/cirurgia , Humanos , Masculino , Morbidade , Medidas de Resultados Relatados pelo Paciente , Qualidade de Vida , Procedimentos de Cirurgia Plástica/efeitos adversos , Procedimentos de Cirurgia Plástica/métodos , Estudos Retrospectivos
2.
Ann Otol Rhinol Laryngol ; 131(9): 1036-1042, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-34651516

RESUMO

OBJECTIVES: Dyskeratosis congenita (DC) is a progressive congenital disorder that predisposes patients to squamous cell cancers (SCC) of the head and neck. We report a case of a patient who underwent primary osteocutaneous free flap for mandibular SCC followed by additional treatments for positive margins and discuss a systematic review on therapeutic management for this patient population. METHODS: Case report of a 39-year-old male with DC who underwent resection and reconstruction with a fibular free flap for mandible SCC, followed by revision surgery and adjuvant radiotherapy for positive margins. A systematic review was completed afterward with the following terms: "dyskeratosis congenita" AND "oral cancer" OR "head and neck" OR "otolaryngology" on Medline and Web of Science for articles between 1980 and 2021. In total, 12 articles were included that reported on DC and SCC in the head and neck. RESULTS: Of the case reports that were included in this review, half the patients had recurrence within 1 year of primary treatments. Only 2 patients did not require revision surgery, adjuvant, or salvage therapy. Half of patients that received radiation therapy had severe side effects. CONCLUSIONS: This is the largest review of DC and SCC in the head and neck. Based off our case report and review, these patients have aggressive disease that often requires multi-modality treatment. Consideration should be taken in regards to reports of side effects with radiation therapy.


Assuntos
Carcinoma de Células Escamosas , Retalhos de Tecido Biológico , Neoplasias de Cabeça e Pescoço , Procedimentos de Cirurgia Plástica , Adulto , Carcinoma de Células Escamosas/cirurgia , Células Epiteliais , Neoplasias de Cabeça e Pescoço/complicações , Neoplasias de Cabeça e Pescoço/cirurgia , Humanos , Masculino , Procedimentos de Cirurgia Plástica/efeitos adversos
4.
JAMA Otolaryngol Head Neck Surg ; 146(12): 1149-1155, 2020 12 01.
Artigo em Inglês | MEDLINE | ID: mdl-33034628

RESUMO

Importance: High local recurrence rates with aggressive disease remain the main concern in oral cancer survival. Use of a translational device using fluorescence visualization (FV) approved by the US Food and Drug Administration and Health Canada, has shown a marked reduction in the 3-year local recurrence rate of high-grade oral lesions in a single-center observational study. Objective: To determine whether FV- guided surgery can improve local control rates in the treatment of in situ or T1 to T2 category oral squamous cell carcinoma (OSCC). Design, Setting, and Participants: A multicenter randomized clinical trial was conducted in a surgical setting. A total of 457 patients were enrolled between January 18, 2010, and April 30, 2015. Data analysis of the intention-to-treat population was performed from April 3, 2019, to March 20, 2020. Patients with histologically confirmed high-grade dysplasia/carcinoma in situ or T1 to T2 category OSCC were randomized to receive traditional peroral surgery or FV-guided surgery. Intervention: Fluorescence visualization during surgery. Main Outcomes and Measures: The primary outcome was local recurrence of OSCC. Secondary outcomes were failure of the first-pass margin, defined as a histologically confirmed positive margin for severe dysplasia or greater histologic change of the main specimen (ie, not the margins taken from the resection bed), regional or distant metastasis, and death due to disease. Results: Of the 457 patients enrolled in the study, 443 patients (264 [59.6%] men; mean [SD] age, 61.5 [13.3] years) completed the randomized treatment: 227 FV-guided and 216 non-FV guided surgery. The median follow-up was 52 (range, 0.29-90.8) months. In total, 45 patients (10.2%) experienced local recurrence. The 3-year local recurrence rate was 9.4% in the FV-guided group and 7.2% in the non-FV group (difference, 2.2%; 95% CI, -3.2% to 7.4%). Other similarities between the FV vs non-FV groups included failure of first-pass margin (68/227 [30.0%]) vs 65/216 [30.1%]), regional failure (39/227 [17.2%] vs 37/216 [17.1%]), disease-specific survival (23/227 [10.1%] vs 19/26 [8.8%]), and overall survival (41/227 [18.1%] vs 38/216 [17.6%]) were also similar between groups. No adverse events were judged to be related to the intervention. Conclusions and Relevance: In this randomized clinical trial, FV-guided surgery did not improve local control rates in the treatment of patients with in situ or T1 to T2 category oral cancer. Under a controlled environment, FV-guided surgery did not have an evident effect in reduction of local recurrence for localized OSCC. This result suggests that attention be directed to strategies other than improving definitions of nonapparent disease at clinical margins to identify the sources of local recurrence. Trial Registration: ClinicalTrial.gov Identifier: NCT01039298.


Assuntos
Carcinoma in Situ/cirurgia , Carcinoma de Células Escamosas/cirurgia , Neoplasias Bucais/cirurgia , Recidiva Local de Neoplasia/epidemiologia , Imagem Óptica , Cirurgia Assistida por Computador , Idoso , Carcinoma in Situ/mortalidade , Carcinoma in Situ/patologia , Carcinoma de Células Escamosas/mortalidade , Carcinoma de Células Escamosas/patologia , Feminino , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Neoplasias Bucais/mortalidade , Neoplasias Bucais/patologia , Gradação de Tumores , Estadiamento de Neoplasias , Taxa de Sobrevida
5.
Head Neck ; 42(12): 3506-3514, 2020 12.
Artigo em Inglês | MEDLINE | ID: mdl-32737948

RESUMO

BACKGROUND: Virtual surgical planning (VSP), via commercial services or developed in-house, has been applied to facilitate head and neck reconstruction. We evaluate a custom, automated planning software. METHODS: Prospectively, VSP of 25 consecutive patients undergoing segmental mandibular reconstruction was performed. Postoperative CT was used to assess structural accuracy of VSP. Operative time, length of stay, and complication rate of the prospective cohort were compared with those of 25 consecutive retrospective historical cases. RESULTS: The deviations between the plan and execution in mandibular width, projection, and volumetric overlap were 2.32 ± 3.91, 2.39 ± 1.72, and 0.59 ± 0.51 mm respectively. Compared with historical data, there was a significant reduction in operative time and length of stay, and no significant difference in complication rates. CONCLUSION: This is the largest prospective series evaluating an in-house VSP workflow for mandibular reconstruction and the first clinical evaluation of an automated planning platform.


Assuntos
Retalhos de Tecido Biológico , Reconstrução Mandibular , Cirurgia Assistida por Computador , Fíbula , Humanos , Mandíbula/diagnóstico por imagem , Mandíbula/cirurgia , Estudos Prospectivos , Estudos Retrospectivos
6.
Oncotarget ; 11(23): 2204-2215, 2020 Jun 09.
Artigo em Inglês | MEDLINE | ID: mdl-32577165

RESUMO

Neck lymph node metastasis (LN+) is one of the most significant prognostic factors affecting 1-in-2 patients diagnosed with oral squamous cell carcinoma (OSCC). The different LN outcomes between clinico-pathologically similar primary tumors suggest underlying molecular signatures that could be associated with the risk of nodal disease development. MicroRNAs (miRNAs)are short non-coding molecules that regulate the expression of their target genes to maintain the balance of cellular processes. A plethora of evidence has indicated that aberrantly expressed miRNAs are involved in cancers with either an antitumor or oncogenic role. In this study, we characterized miRNA expression among OSCC fresh-frozen tumors with known outcomes of nodal disease (82 LN+, 76 LN0). We identified 49 differentially expressed miRNAs in tumors of the LN+ group. Using penalized lasso Cox regression, we identified a group of 10 miRNAs of which expression levels were highly associated with nodal-disease free survival. We further reported a 4-miRNA panel (miR-21-5p, miR-107, miR-1247-3p, and miR-181b-3p) with high accuracy in discriminating LN status, suggesting their potential application as prognostic biomarkers for nodal disease.

7.
Laryngoscope ; 130(2): 375-380, 2020 02.
Artigo em Inglês | MEDLINE | ID: mdl-30840321

RESUMO

OBJECTIVES/HYPOTHESIS: Despite consensus that preoperative nutritional assessment is of importance in the head and neck surgical oncology population, it remains unclear how exactly malnutrition is associated with perioperative morbidity especially among those undergoing microvascular surgery. We aimed to study this association to help inform preoperative risk stratification, guide the use of nutritional interventions, and ultimately help prevent malnutrition related morbidity. STUDY DESIGN: Database analysis. METHODS: Retrospective, linked analysis of the 2011 to 2016 National Surgical Quality Improvement Program. After identifying eligible patients and stratifying according to the Nutrition-Related Index, a univariate screen of preoperative demographic and clinical covariates was performed. Subsequently, propensity score matching was utilized to control for differences in baseline covariates. Perioperative complications and mortality were then analyzed using the propensity score-matched cohorts. RESULTS: Among 977 identified patients, 276 (28.2%) were malnourished. Malnourished patients had higher rates of comorbidity, were more likely to actively smoke, and were more likely to have primaries in the oropharynx or hypopharynx/larynx. After propensity score matching to control for confounders, malnourished patients had higher rates of pulmonary complications (21.5% vs. 11.6%, P < .01), higher rates of bleeding or need for transfusion (56.6% vs. 43.0%, P < .01), higher rates of venous thromboembolism (3.7% vs. 0.8%, P = .03), and a higher 30-day mortality rates (3.7% vs. 0.0%, P < .01). CONCLUSIONS: This nationwide analysis finds that 28.2% of patients undergoing surgery for head and neck cancers with free flap reconstruction are malnourished. Malnourishment was found to be independently associated with postoperative pulmonary complications, bleeding or need for transfusion, and 30-day mortality. LEVEL OF EVIDENCE: NA Laryngoscope, 130:375-380, 2020.


Assuntos
Neoplasias de Cabeça e Pescoço/cirurgia , Desnutrição/complicações , Microcirurgia , Avaliação Nutricional , Complicações Pós-Operatórias/epidemiologia , Feminino , Neoplasias de Cabeça e Pescoço/mortalidade , Humanos , Masculino , Pessoa de Meia-Idade , Morbidade , Complicações Pós-Operatórias/mortalidade , Pontuação de Propensão , Estudos Retrospectivos , Estados Unidos/epidemiologia
8.
Head Neck Pathol ; 13(3): 371-377, 2019 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-30315432

RESUMO

Sclerosing odontogenic carcinoma is a rare locally destructive neoplasm with many histologic mimics. Here the diagnostic challenges are presented of a case of sclerosing odontogenic carcinoma with variable histologic features, including unusual and unexpected negative immunostaining for CK19.


Assuntos
Carcinoma/patologia , Neoplasias Maxilares/patologia , Segunda Neoplasia Primária/patologia , Tumores Odontogênicos/patologia , Carcinoma/terapia , Carcinoma Hepatocelular , Humanos , Neoplasias Hepáticas , Masculino , Neoplasias Maxilares/terapia , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/patologia , Recidiva Local de Neoplasia/radioterapia , Segunda Neoplasia Primária/terapia , Tumores Odontogênicos/terapia
9.
Head Neck ; 40(11): 2416-2423, 2018 11.
Artigo em Inglês | MEDLINE | ID: mdl-30102813

RESUMO

BACKGROUND: As transoral robotic surgery (TORS) is being increasingly used to treat patients with oropharyngeal squamous cell carcinoma (OPSCC), there is an interest in determining contributors to readmission. METHODS: We conducted this retrospective multivariate analysis modeling 30-day readmission using the Nationwide Readmissions Database (2012-2014). RESULTS: Of 950 patients, 117 (12.3%) were readmitted. Hemorrhage and diet/aspiration accounted for 32.5% and 19.7% of readmissions, respectively. Of those readmitted, 23.1% required operative bleeding control, 11.1% required transfusion, 1.7% required tracheostomy, and 18.8% required gastrostomies. Those readmitted were older (mean 63.2 years, SD 9.5 vs 60.9 mean years, SD 10.3) and had longer hospitalizations (mean 5.7 days, SD 6.8 vs mean 4.3 days, SD 4.1) and higher rates of aspiration/pneumonia (9.4% vs 2.4%, P < .01) on index admission. Multivariate analysis demonstrated that aspiration/pneumonia on index admission was independently associated with readmission (OR 3.128, 95% CI 1.178-8.302). CONCLUSIONS: Of the patients 12.3% were readmitted within 30 days with hemorrhage and diet complications as significant contributors.


Assuntos
Carcinoma de Células Escamosas/cirurgia , Cirurgia Endoscópica por Orifício Natural/efeitos adversos , Neoplasias Orofaríngeas/cirurgia , Readmissão do Paciente/estatística & dados numéricos , Procedimentos Cirúrgicos Robóticos/efeitos adversos , Idoso , Carcinoma de Células Escamosas/mortalidade , Carcinoma de Células Escamosas/patologia , Estudos de Coortes , Bases de Dados Factuais , Intervalo Livre de Doença , Feminino , Humanos , Incidência , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Cirurgia Endoscópica por Orifício Natural/métodos , Invasividade Neoplásica/patologia , Estadiamento de Neoplasias , Neoplasias Orofaríngeas/mortalidade , Neoplasias Orofaríngeas/patologia , Complicações Pós-Operatórias/mortalidade , Complicações Pós-Operatórias/patologia , Complicações Pós-Operatórias/terapia , Valor Preditivo dos Testes , Prognóstico , Estudos Retrospectivos , Medição de Risco , Procedimentos Cirúrgicos Robóticos/métodos , Análise de Sobrevida , Estados Unidos
10.
Laryngoscope ; 128(11): 2532-2538, 2018 11.
Artigo em Inglês | MEDLINE | ID: mdl-29602261

RESUMO

OBJECTIVES: Post-acute care (PAC) centers, such as skilled nursing facilities, unskilled nursing facilities, lower acuity hospitals, and rehabilitation centers, serve to optimize recovery after acute care hospitalization. We aimed to identify factors associated with PAC utilization among patients undergoing head and neck cancer surgery with microvascular reconstruction because it may be helpful for patient decision making, discharge planning, and resource allocation. METHODS: Retrospective linked analysis of the 2011 to 2015 National Surgical Quality Improvement Program. Eligible patients were identified and stratified by discharge disposition (home or PAC) after their postoperative acute-care hospitalization. After an initial univariate screen of demographic and clinical variables, a multivariable logistic regression analysis was performed modelling discharge to PAC. RESULTS: Of the 1,652 identified patients, 261 (15.8%) were discharged to PAC. Those admitted to PAC were older, had a higher burden of comorbidity, and were more likely to be functionally dependent. They also had longer surgeries, longer hospitalizations, higher rates of reoperation, and higher rates of postoperative complications. After multivariate analysis, factors independently associated with PAC discharge included increasing age (odds ratio [OR] 2.12 per 10-year increase; 95% confidence interval [CI], 1.81-2.48), active smoking status (odds ratio (OR) 1.61; 95% confidence interval (CI), 1.13-2.29), prolonged hospitalization (OR 1.04; 95% CI, 1.02-1.07), and postoperative pulmonary complications (OR 2.02; 95% CI, 1.36-2.99). CONCLUSION: Of the patients undergoing surgery for head and neck cancers with microvascular reconstruction, 15.8% are discharged to PAC. Age, active smoking status, prolonged hospitalization, and postoperative pulmonary complications (vs. comorbidity, functional status, or primary tumor site) are independently associated with discharge to PAC. LEVEL OF EVIDENCE: Level 2c. Laryngoscope, 2532-2538, 2018.


Assuntos
Neoplasias de Cabeça e Pescoço/cirurgia , Microcirurgia/métodos , Procedimentos de Cirurgia Plástica/métodos , Instituições de Cuidados Especializados de Enfermagem , Cuidados Semi-Intensivos/estatística & dados numéricos , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Alta do Paciente , Estudos Retrospectivos , Fatores de Risco
11.
Otolaryngol Head Neck Surg ; 158(6): 1057-1064, 2018 06.
Artigo em Inglês | MEDLINE | ID: mdl-29436282

RESUMO

Objectives There are well-established outcome disparities among different demographic groups with head and neck squamous cell carcinoma (HNSCC). We aimed to investigate the potential contribution of patient choice of nonsurgical treatment to these disparities by estimating the rate of this phenomenon, identifying its predictors, and estimating the effect on cancer-specific survival. Study Design Retrospective nationwide analysis. Settings Surveillance, Epidemiology, and End Results Database (2004-2014). Subjects and Methods Patients with HNSCC, who were recommended for primary surgery, were included. Multivariable logistic regression was used to identify demographic and clinical factors associated with patient choice of nonsurgical treatment, and Kaplan Meier/Cox regression was used to analyze survival. Results Of 114,506 patients with HNSCC, 58,816 (51.4%) were recommended for primary surgery, and of those, 1550 (2.7%) chose nonsurgical treatment. Those who chose nonsurgical treatment were more likely to be older (67.1 ± 12.6 vs 63.6 ± 13.1, P < .01), were of Black (odds ratio [OR], 1.49; 95% confidence interval [CI], 1.28-1.74) or Asian (OR = 1.79; 95% CI, 1.46-2.20) ethnicity, were unmarried (OR married, 0.50; 95% CI, 0.44-0.58), had an advanced tumor, and had a hypopharyngeal or laryngeal primary. Choice of nonsurgical treatment imparted a 2.16-fold (95% CI, 2.02-2.30) increased risk of cancer-specific death. Conclusion Of the patients, 2.7% chose nonsurgical treatment despite a provider recommendation that impairs survival. Choice of nonsurgical treatment is associated with older age, having Black or Asian ethnicity, being unmarried, having an advanced stage tumor, and having a primary site in the hypopharynx or larynx. Knowledge of these disparities may help providers counsel patients and help patients make informed decisions.


Assuntos
Neoplasias de Cabeça e Pescoço/psicologia , Neoplasias de Cabeça e Pescoço/terapia , Preferência do Paciente , Carcinoma de Células Escamosas de Cabeça e Pescoço/psicologia , Carcinoma de Células Escamosas de Cabeça e Pescoço/terapia , Idoso , Demografia , Feminino , Neoplasias de Cabeça e Pescoço/mortalidade , Neoplasias de Cabeça e Pescoço/patologia , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Programa de SEER , Carcinoma de Células Escamosas de Cabeça e Pescoço/mortalidade , Carcinoma de Células Escamosas de Cabeça e Pescoço/patologia , Taxa de Sobrevida , Resultado do Tratamento , Recusa do Paciente ao Tratamento , Estados Unidos/epidemiologia
12.
JAMA Otolaryngol Head Neck Surg ; 142(11): 1111-1119, 2016 11 01.
Artigo em Inglês | MEDLINE | ID: mdl-27560665

RESUMO

Importance: Nodal disease has a significant effect on survival of patients with oral squamous cell carcinoma (OSCC). The decision for elective neck dissection for clinically node-negative (cN0) disease remains elusive. Objectives: To determine the efficacy of prophylactic neck treatment and to assess the value of commonly used clinicopathologic factors associated with nodal disease for early-stage OSCC. Design, Setting, and Participants: This retrospective study from a population-based cancer registry included patients diagnosed as having OSCC from January 11, 2001, to December 24, 2007, who were identified from the British Columbia Cancer Agency Registry. Comprehensive clinicopathologic data, treatment information, and time to outcome were collected. Five-year overall survival, disease-specific survival, and cumulative incidence of regional failure (RF) were analyzed. Receiver operating characteristic curve analysis with sensitivity and specificity was used to determine the association of these covariates with RF during follow-up. Data were analyzed from January 16 to June 30, 2015. Interventions: Follow-up of patients with cN0 OSCC with or without prophylactic neck treatment (elective neck dissection [END] and or radiotherapy). Main Outcomes and Measures: Patient demographic characteristics, clinicopathologic data, treatment data, and time from the initial surgery to last follow-up, the development of RF, or death due to oral cancer or other causes. Results: Of the 469 patients with cN0 primary OSCC who underwent intent-to-cure surgery for the intraoral lesion, 447 received local excision (LE) for the primary tumor (256 men [57.3%] and 191 women [42.7%]; mean [SD] age, 63.3 [14.7] years). Patients who received prophylactic treatment of the neck (n = 125) compared with LE only (n = 322) had no survival advantage. The estimated 5-year overall and disease-specific survival rates were 61.9% (95% CI, 56.5%-67.8%) and 80.8% (95% CI, 76.1%-85.6%), respectively, for the LE-only group; 54.4% (95% CI, 45.9%-64.5%) and 73.1% (95% CI, 65%-82.3%), respectively, for the LE + END ± radiotherapy group; and 61.7% (95% CI, 52.3%-72.8%) and 80.3% (95% CI, 72%-89.4%), respectively, for the LE + END group. Among the patients with cN0 disease receiving LE only, 89 (27.6%; 95% CI, 23%-33%) developed RF at a median time of 10.8 months, and 71 of the RFs (79.8%) developed within 30 months. Tumor depth of invasion of at least 4 mm and tumor grade of 2 or 3 showed an association with RF but had poor sensitivity and specificity. Conclusions and Relevance: Commonly used pathologic factors to decide neck dissection for cN0 OSCC are not effective and can cause overtreatment or undertreatment. The need for identification of new objective approaches for risk assessment of RF is urgent.


Assuntos
Carcinoma de Células Escamosas/patologia , Carcinoma de Células Escamosas/cirurgia , Neoplasias Bucais/patologia , Neoplasias Bucais/cirurgia , Esvaziamento Cervical , Carcinoma de Células Escamosas/mortalidade , Carcinoma de Células Escamosas/radioterapia , Feminino , Humanos , Excisão de Linfonodo , Masculino , Pessoa de Meia-Idade , Neoplasias Bucais/mortalidade , Neoplasias Bucais/radioterapia , Curva ROC , Estudos Retrospectivos , Medição de Risco
13.
JAMA Otolaryngol Head Neck Surg ; 142(3): 209-16, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-26769431

RESUMO

IMPORTANCE: The prevalence of genetically altered cells in oral cancers has a negative influence on the locoregional recurrence rate and lowers survival. Fluorescence visualization (FV) can identify clinically occult, high-risk oral lesions by allowing health care professionals and surgeons to visualize and map occult disease. This process may improve overall survival by decreasing rates of locoregional recurrence. OBJECTIVE: To assess the efficacy of FV-guided surgery in reducing locoregional recurrence and improving overall survival. DESIGN, SETTING, AND PARTICIPANTS: A retrospective, case-control observational study was conducted on patients registered at a single oral oncology clinic from September 1, 2004, to August 31, 2009. The study included 246 patients 18 years or older with a diagnosis of a high-grade lesion (severe dysplasia or carcinoma in situ) or squamous cell carcinoma of less than 4 cm who underwent curative surgical treatment with at least 1 follow-up visit. Among these patients, 154 underwent surgery with FV guidance (FV group) and the other 92 underwent conventional surgery (control group). Demographic and lesional characteristics and outcomes were collected, and the key factors for the efficacy of FV-guided surgery were examined. Follow-up was completed on December 31, 2011, and data were analyzed from May 1 to November 30, 2013. MAIN OUTCOMES AND MEASURES: Local recurrence of oral lesions with a histologic grade of severe dysplasia or higher, the presence of regional failure (ie, a metastatic lesion in the cervical lymph nodes), or disease-free survival after surgery. RESULTS: Among the 246 patients included in the study (mean [SD] age, 60 [12] years; 108 women and 138 men), 156 had squamous cell carcinoma and 90 had high-grade lesions. There were no significant differences between the FV (n = 154) and control (n = 92) groups in age, smoking history, anatomical site of the lesion, tumor size, and previous oral cancer. Among the 156 patients with squamous cell carcinoma, the 92 patients in the FV group showed significant reduction in the 3-year local recurrence rate, from 40.6% (26 of 64 patients) to 6.5% (6 of 92 patients) (P < .001). Among the 90 patients with high-grade lesions, the 62 patients in the FV group showed a reduction in local recurrence rate from 11 of 28 patients (39.3%) to 5 of 62 patients (8.1%) (P < .001). The data also indicated that, compared with conventional surgery, the FV-guided approach for squamous cell carcinoma was associated with less regional failure (14 of 92 patients [15.2%] vs 16 of 64 [25.0%]; P = .08) and death (12 of 92 patients [13.0%] vs 13 of 64 [20.3%]; P = .22), although these differences were not statistically significant. CONCLUSIONS AND RELEVANCE: In this study, the use of FV as part of the surgical margin decision process significantly reduced the rate of local recurrence in preinvasive high-grade and early-stage oral cancers. An ongoing multicenter, phase 3, randomized surgical trial has completed accrual, and the data will be used to validate the results of this study.


Assuntos
Carcinoma de Células Escamosas/cirurgia , Neoplasias Bucais/cirurgia , Estadiamento de Neoplasias/métodos , Imagem Óptica/métodos , Procedimentos Cirúrgicos Bucais/métodos , Cirurgia Assistida por Computador/métodos , Colúmbia Britânica/epidemiologia , Carcinoma de Células Escamosas/patologia , Intervalo Livre de Doença , Feminino , Fluorescência , Seguimentos , Humanos , Incidência , Masculino , Pessoa de Meia-Idade , Neoplasias Bucais/patologia , Recidiva Local de Neoplasia/epidemiologia , Estudos Retrospectivos , Taxa de Sobrevida/tendências , Resultado do Tratamento
14.
BMC Cancer ; 11: 462, 2011 Oct 25.
Artigo em Inglês | MEDLINE | ID: mdl-22026481

RESUMO

BACKGROUND: Oral cancer is a major health problem worldwide. The 5-year survival rate ranges from 30-60%, and has remained unchanged in the past few decades. This is mainly due to late diagnosis and high recurrence of the disease. Of the patients who receive treatment, up to one third suffer from a recurrence or a second primary tumor. It is apparent that one major cause of disease recurrence is clinically unrecognized field changes which extend beyond the visible tumor boundary. We have previously developed an approach using fluorescence visualization (FV) technology to improve the recognition of the field at risk surrounding a visible oral cancer that needs to be removed and preliminary results have shown a significant reduction in recurrence rates. METHOD/DESIGN: This paper describes the study design of a randomized, multi-centre, double blind, controlled surgical trial, the COOLS trial. Nine institutions across Canada will recruit a total of 400 patients with oral severe dysplasia or carcinoma in situ (N = 160) and invasive squamous cell carcinoma (N = 240). Patients will be stratified by participating institution and histology grade and randomized equally into FV-guided surgery (experimental arm) or white light-guided surgery (control arm). The primary endpoint is a composite of recurrence at or 1 cm within the previous surgery site with 1) the same or higher grade histology compared to the initial diagnosis (i.e., the diagnosis used for randomization); or 2) further treatment due to the presence of severe dysplasia or higher degree of change at follow-up. This is the first randomized, multi-centre trial to validate the effectiveness of the FV-guided surgery. DISCUSSION: In this paper we described the strategies, novelty, and challenges of this unique trial involving a surgical approach guided by the FV technology. The success of the trial requires training, coordination, and quality assurance across multiple sites within Canada. The COOLS trial, an example of translational research, may result in reduced recurrence rates following surgical treatment of early-stage oral cancer with significant impacts on survival, morbidity, patients' quality of life and the cost to the health care system. TRIAL REGISTRATION: Clinicaltrials.gov NCT01039298.


Assuntos
Carcinoma in Situ/cirurgia , Carcinoma de Células Escamosas/cirurgia , Fluorescência , Neoplasias de Cabeça e Pescoço/cirurgia , Neoplasias Bucais/cirurgia , Cirurgia Assistida por Computador/métodos , Canadá , Análise Custo-Benefício , Método Duplo-Cego , Humanos , Recidiva Local de Neoplasia , Anos de Vida Ajustados por Qualidade de Vida , Carcinoma de Células Escamosas de Cabeça e Pescoço , Cirurgia Assistida por Computador/economia
15.
Clin Cancer Res ; 12(22): 6716-22, 2006 Nov 15.
Artigo em Inglês | MEDLINE | ID: mdl-17121891

RESUMO

PURPOSE: Genetically altered cells could become widespread across the epithelium of patients with oral cancer, often in clinically and histologically normal tissue, and contribute to recurrent disease. Molecular approaches have begun to yield information on cancer/risk fields; tissue optics could further extend our understanding of alteration to phenotype as a result of molecular change. EXPERIMENTAL DESIGN: We used a simple hand-held device in the operating room to directly visualize subclinical field changes around oral cancers, documenting alteration to fluorescence. A total of 122 oral mucosa biopsies were obtained from 20 surgical specimens with each biopsy being assessed for location, fluorescence visualization (FV) status, histology, and loss of heterozygosity (LOH; 10 markers on three regions: 3p14, 9p21, and 17p13). RESULTS: All tumors showed FV loss (FVL). For 19 of the 20 tumors, the loss extended in at least one direction beyond the clinically visible tumor, with the extension varying from 4 to 25 mm. Thirty-two of 36 FVL biopsies showed histologic change (including 7 squamous cell carcinoma/carcinomas in situ, 10 severe dysplasias, and 15 mild/moderate dysplasias) compared with 1 of the 66 FV retained (FVR) biopsies. Molecular analysis on margins with low-grade or no dysplasia showed a significant association of LOH in FVL biopsies, with LOH at 3p and/or 9p (previously associated with local tumor recurrence) present in 12 of 19 FVL biopsies compared with 3 of 13 FVR biopsies (P=0.04). CONCLUSIONS: These data have, for the first time, shown that direct FV can identify subclinical high-risk fields with cancerous and precancerous changes in the operating room setting.


Assuntos
Carcinoma de Células Escamosas/diagnóstico , Carcinoma de Células Escamosas/cirurgia , Fluorescência , Hidrocarbonetos , Neoplasias Bucais/diagnóstico , Neoplasias Bucais/cirurgia , Adulto , Idoso , Idoso de 80 Anos ou mais , Biomarcadores Tumorais/genética , Carcinoma in Situ/diagnóstico , Carcinoma de Células Escamosas/genética , Feminino , Humanos , Período Intraoperatório , Perda de Heterozigosidade , Masculino , Pessoa de Meia-Idade , Neoplasias Bucais/genética , Medição de Risco
16.
J Otolaryngol ; 32(5): 298-301, 2003 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-14974859

RESUMO

OBJECTIVE: The goal of the present study was to review our experience with parotid surgery in an outpatient setting. Particular attention was given to examining the demographics of the population suitable for this approach as well as to evaluating complication and readmission rates. Waiting times for surgery were reviewed. Our experience is then compared with that of other researchers reported in the literature. METHODS: A retrospective chart review of 76 patients undergoing parotid surgery by a single surgeon in a free-standing surgical centre associated with Vancouver General Hospital, a tertiary teaching facility, was undertaken for the following: age, gender, American Association of Anesthesiology classification, time between initial visit and surgery, type of procedure, pathology, operative and recovery times and rates of complications, emergency department visitation, and readmission. RESULTS: Thirty-seven males and 39 females with a mean age of 44.8 +/- 16.2 years were reviewed. Mean operative and recovery times were 109.8 +/- 20 and 268.6 +/- 58 minutes, respectively. The minor complication rate was 6.6%. One patient (1.3%) required readmission and two others (2.6%) visited the emergency department. CONCLUSIONS: Parotid surgery is possible on an outpatient basis, given appropriate patient selection. Our rates of complications, emergency department visitation, and hospital admission compare favourably with those reported in the literature.


Assuntos
Procedimentos Cirúrgicos Ambulatórios , Glândula Parótida/cirurgia , Neoplasias Parotídeas/cirurgia , Adulto , Feminino , Humanos , Masculino , Seleção de Pacientes , Complicações Pós-Operatórias/epidemiologia , Estudos Retrospectivos , Fatores de Tempo
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