Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 42
Filtrar
Más filtros

Banco de datos
País/Región como asunto
Tipo del documento
País de afiliación
Intervalo de año de publicación
1.
Int J Clin Oncol ; 28(4): 512-520, 2023 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-36795281

RESUMEN

BACKGROUND: A multicenter, randomized controlled phase III trial was conducted on sentinel lymph node biopsy (SLNB) and elective neck dissection for T1 (depth of invasion ≥ 4 mm)-T2N0M0 oral cavity squamous cell carcinoma. This study identified factors associated with poor prognosis in patients who underwent SLNB based on a subgroup analysis of this trial. METHODS: We analyzed 418 sentinel lymph nodes (SLNs) from 132 patients who underwent SLNB. The metastatic SLNs were classified into three categories based on size-isolated tumor cells: < 0.2 mm, micrometastasis: ≥ 0.2 mm and < 2 mm, and macrometastasis: ≥ 2 mm. Three groups were formed based on the number of metastatic SLNs: no metastasis, 1 metastatic node, and ≥ 2 metastatic nodes. The size and number of metastatic SLNs on survival were evaluated using Cox proportional hazard models. RESULTS: Patients with macrometastasis and ≥ 2 metastatic SLNs had worse overall survival (OS) and disease-free survival (DFS) after adjustment for potential confounders (HR for OS: macrometastasis, 4.85; 95% CI 1.34-17.60; ≥ 2 metastatic SLN, 3.63; 95% CI 1.02-12.89; HR for DFS: macrometastasis, 2.94; 95% CI 1.16-7.44; ≥ 2 metastatic SLN, 2.97; 95% CI 1.18-7.51). CONCLUSIONS: In patients who underwent SLNB, a poorer prognosis was associated with macrometastasis or having ≥ 2 metastatic SLNs.


Asunto(s)
Neoplasias de la Mama , Neoplasias de la Boca , Ganglio Linfático Centinela , Humanos , Femenino , Biopsia del Ganglio Linfático Centinela , Metástasis Linfática/patología , Neoplasias de la Boca/cirugía , Neoplasias de la Boca/patología , Disección del Cuello , Supervivencia sin Enfermedad , Ganglios Linfáticos/cirugía , Ganglios Linfáticos/patología , Ganglio Linfático Centinela/cirugía , Ganglio Linfático Centinela/patología , Neoplasias de la Mama/patología
2.
Ann Surg Oncol ; 28(6): 3066-3072, 2021 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-33141372

RESUMEN

BACKGROUND: Parapharyngeal space tumors are rare. Among them, tumors in the prestyloid compartment are particularly suitable for surgery; however, there are no detailed reports of such surgery and their features remain unknown. METHODS: We conducted a retrospective cohort study. For 67 surgical cases of benign tumors in this compartment, we examined the patient and tumor characteristics, fine-needle aspiration cytology (FNAC), and intraoperative details such as surgical approach, use of complete excision, and postoperative complications. RESULTS: Pleomorphic adenomas (PAs) comprised 73.1% of the lesions. The diagnostic accuracy of FNAC to differentiate benign and malignant tumors was 97.7%. Of the treated lesions, 94.0% were removed via the cervical approach alone, including all PAs. The remaining 6.0% were resected via the cervical-parotid approach. The median operative time and bleeding volume were 89 min and 50 mL, respectively. Operative time using the cervical approach was significantly shorter (p = 0.021). All cases could be treated via complete surgical excision. Postoperative complications occurred in 32.8% of patients, with transient slight facial palsy being the most common. No fatal complications occurred and 92.5% of patients had no sequelae. There was no significant association between complications and surgical approach. CONCLUSION: Based on diagnosis by FNAC, with a high accuracy rate, most benign prestyloid tumors, especially PAs, were resected using the cervical approach alone, with a shorter operative time and without severe complications.


Asunto(s)
Adenoma Pleomórfico , Espacio Parafaríngeo , Adenoma Pleomórfico/cirugía , Biopsia con Aguja Fina , Humanos , Glándula Parótida , Estudios Retrospectivos
3.
Cancer ; 126(18): 4177-4187, 2020 09 15.
Artículo en Inglés | MEDLINE | ID: mdl-32648953

RESUMEN

BACKGROUND: Although the American Joint Committee on Cancer TNM classification has been amended to include human papillomavirus (HPV)-related oropharyngeal squamous cell carcinoma (OPSCC) as an independent entity, to the authors' knowledge the optimized de-escalating treatment modality has not been established to date. METHODS: The authors conducted a retrospective, nationwide, observational study in patients with HPV-related OPSCC who were treated from 2011 to 2014 in Japan to determine the best treatment modality. RESULTS: A total of 688 patients who were newly diagnosed with HPV-related OPSCC who were treated with curative intent at 35 institutions and had coherent clinical information and follow-up data available were included in the current study. In patients with T1-T2N0 disease (79 patients), both the 3-year recurrence-free survival and overall survival (OS) rates were 100% in the group treated with radiotherapy (RT) as well as the group receiving concurrent chemoradiotherapy (CCRT). The 3-year OS rates were 94.4% (for patients with T1N0 disease) and 92.9% (for patients with T2N0 disease) among the patients treated with upfront surgery. In patients with stage I to stage II HPV-related OPSCC, the 5-year recurrence-free survival and OS rates were 91.4% and 92%, respectively, in the patients treated with CCRT with relatively high-dose cisplatin (≥160 mg/m2 ; 114 patients) and 74.3% and 69.5%, respectively, in the patients treated with low-dose cisplatin (<160 mg/m2 ; 17 patients). CONCLUSIONS: Despite it being a retrospective observational trial with a lack of information regarding toxicity and morbidity, the results of the current study demonstrated that patients with T1-T2N0 HPV-related OPSCC could be treated with RT alone because of the equivalent outcomes of RT and CCRT, and patients with stage I to stage II HPV-related OPSCC other than those with T1-T2N0 disease could be treated with CCRT with cisplatin at a dose of ≥160 mg/m2 .


Asunto(s)
Carcinoma de Células Escamosas/terapia , Neoplasias de Cabeza y Cuello/terapia , Neoplasias Orofaríngeas/terapia , Adulto , Anciano , Anciano de 80 o más Años , Carcinoma de Células Escamosas/mortalidad , Carcinoma de Células Escamosas/patología , Femenino , Neoplasias de Cabeza y Cuello/mortalidad , Neoplasias de Cabeza y Cuello/patología , Humanos , Japón , Masculino , Persona de Mediana Edad , Neoplasias Orofaríngeas/mortalidad , Neoplasias Orofaríngeas/patología , Sistema de Registros , Estudios Retrospectivos , Tasa de Supervivencia
4.
Cancer Control ; 23(3): 311-6, 2016 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-27556672

RESUMEN

BACKGROUND: Stereotactic radiotherapy (SRT) may represent a new treatment option for individuals with auditory canal or middle ear cancer. METHODS: Study participants with pathologically proven ear cancer were treated with SRT (35 Gy for 3 fractions or 40 Gy for 5 fractions) as first-line therapy. When local tumor recurrence developed following SRT, subtotal temporal bone resection and postoperative chemoradiotherapy were performed as salvage treatment. Boluses were used for the initial 14 study patients. RESULTS: Twenty-nine study participants were enrolled and staged with T1 (n = 3), T2 (n = 7), T3 (n = 14), or T4 disease (n = 5). Three-year overall survival rates were 69% for T1/2 disease, 79% for T3 disease, and 0% for T4 disease. Three-year local control rates were 70% for T1/2 disease, 50% for T3 disease, and 20% for T4 disease. Grade 2 or higher dermatitis or soft-tissue necrosis occurred more frequently in study patients treated with boluses (8/14 vs 2/15; P = .02). Salvage treatment was safely performed for 12 recurrent cases. CONCLUSIONS: These results suggest that SRT outcomes are promising for patients with ear cancer (? T3 disease). The rate of toxicity was acceptable in the study patients treated without boluses. Outcomes of salvage surgery and postoperative radiotherapy following SRT were also encouraging.


Asunto(s)
Neoplasias del Oído/radioterapia , Oído Medio/patología , Radioterapia/métodos , Adulto , Anciano , Anciano de 80 o más Años , Supervivencia sin Enfermedad , Neoplasias del Oído/mortalidad , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Tasa de Supervivencia
5.
Int J Clin Oncol ; 20(1): 35-44, 2015 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-24553861

RESUMEN

BACKGROUND: Salivary duct carcinoma (SDC) is a highly aggressive disease which often metastasizes to distant sites, and there is no established standard therapy for this systemic disease. Given that SDC is biologically similar to breast and prostate cancer, anti-androgenic receptor (AR) and anti-human epidermal growth factor receptor 2 (HER2) therapies have the potential to exert effects, not only on patients with breast and prostate cancer but also on those with SDC. METHODS: The expression levels of HER2, epidermal growth factor receptor (EGFR), Ki-67, and AR were assessed in 32 patients with SDC, and their correlations with overall survival (OS) and disease-free survival (DFS) were analyzed retrospectively. SDC was classified into five subtypes using a method similar to that used for breast cancer. RESULTS: Anti-AR, HER2, and EGFR were positive in 23 (71.9 %), 14 (43.8 %), and 26 (81.3 %) cases, respectively. One or more of these 3 factors were positive in 30 (93.8 %) cases. The Ki-67 labeling index was greater than 15 % in all cases. While molecular status did not correlate with OS, EGFR and AR positivity were significantly associated with DFS in univariate analysis. Multivariate analysis revealed that EGFR was the only independent predictor of DFS. CONCLUSIONS: The statuses of some molecules are useful to predict DFS in patients with SDC. Ki-67 overexpression suggests that cytotoxic agents are effective for SDC. Since the majority of SDCs express AR, HER2, and/or EGFR, assessing and targeting these molecules are promising strategies to improve the prognosis of unresectable, metastatic or recurrent SDC, and a classification system according to the molecular expression status may be useful to select appropriate therapy.


Asunto(s)
Receptores ErbB/metabolismo , Antígeno Ki-67/metabolismo , Receptor ErbB-2/metabolismo , Receptores Androgénicos/metabolismo , Conductos Salivales/patología , Neoplasias de las Glándulas Salivales/patología , Adulto , Anciano , Anciano de 80 o más Años , Supervivencia sin Enfermedad , Femenino , Humanos , Masculino , Persona de Mediana Edad , Pronóstico , Estudios Retrospectivos , Conductos Salivales/metabolismo , Neoplasias de las Glándulas Salivales/metabolismo
6.
Acta Neurochir (Wien) ; 155(4): 733-6, 2013 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-23404431

RESUMEN

BACKGROUND: The anterior skull base is a deep and narrow area, which makes dural repair technically challenging. The goal of this study was to demonstrate the efficacy of a new instrument for anterior skull base dural repair. METHODS: Ten patients underwent surgery via the transbasal approach, combined with either a transfacial or a transnasal endoscopic resection. The dural repair was performed prior to tumor resection, and the new instrument was used to suture the fascia lata in an underlay fashion. The repaired dural defect was then covered with a pericranial flap. RESULTS: The follow-up period ranged from 2 to 18 months, with an average follow-up time of 8.7 months. During this period, none of the patients experienced cerebrospinal fluid leakage, meningitis, tension pneumocephalus, abscess formation, or flap necrosis. CONCLUSIONS: Our findings suggest that the use of this instrument combined with the technique of suturing the fascia lata in an underlay fashion and covering it with a pericranial flap, may be an effective alternative approach to anterior skull base reconstruction.


Asunto(s)
Procedimientos de Cirugía Plástica/instrumentación , Neoplasias de la Base del Cráneo/cirugía , Base del Cráneo/cirugía , Colgajos Quirúrgicos , Adulto , Anciano , Pérdida de Líquido Cefalorraquídeo , Rinorrea de Líquido Cefalorraquídeo/prevención & control , Duramadre/cirugía , Femenino , Humanos , Masculino , Persona de Mediana Edad , Procedimientos de Cirugía Plástica/métodos , Resultado del Tratamiento
7.
Nihon Jibiinkoka Gakkai Kaiho ; 116(1): 27-30, 2013 Jan.
Artículo en Japonés | MEDLINE | ID: mdl-23484370

RESUMEN

Tumors of the parapharyngeal space are said to account for 0.5% of all head and neck tumors, and are thus relatively rare. We performed histopathological examination of 76 tumors of the parapharyngeal space in patients hospitalized at the International University of Health and Welfare, Mita Hospital Head and Neck Oncology and Surgery center for 6 years from July 2005 to June 2011. There were 35 men and 41 women; the patients ranged in age from 15 to 78 years with a median age of 44. We performed preoperative CT and MRI, aspiration biopsy cytology (fine needle aspiration [FNA]) and postoperative histopathology diagnosis. There were 69 benign tumors (90.8%), and 7 malignant tumors (11.8%). Among the benign tumors were 32 schwannomas (42.1%) and 28 pleomorphic adenomas (36.8%). A total of 26 tumors of prestyloid origin were pleomorphic adenomas (93.8%), and 28 tumors of poststyloid origin were schwannomas (87.5%); all 7 malignant tumors (100%) were of prestyloid origin. There were 55 patients who underwent preoperative FNA, and the proper diagnosis rate was 70.9% (39/55 case). Preoperative imaging seemed to be very useful for predicting the histopathology. Furthermore, it would be desirable for FNA to be performed preoperatively for tumors of prestyloid origin, in consideration of the likelihood of such tumors being malignant. We think that there is room for improvement in the accurate FNA diagnosis rate.


Asunto(s)
Neoplasias Faríngeas/patología , Adolescente , Adulto , Anciano , Biopsia con Aguja Fina/métodos , Diagnóstico Diferencial , Femenino , Neoplasias de Cabeza y Cuello/patología , Neoplasias de Cabeza y Cuello/cirugía , Humanos , Masculino , Persona de Mediana Edad , Neoplasias Faríngeas/cirugía , Resultado del Tratamiento , Adulto Joven
8.
Auris Nasus Larynx ; 49(4): 680-689, 2022 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-34895941

RESUMEN

OBJECTIVE: The localization pattern of metastatic sentinel lymph node (SN) and non-SNs and pathologic analysis of metastatic lymph nodes in SN lymphatic basin dissection (SLBD) were investigated in patients with cT2/T3cN0 oral squamous cell carcinoma (OSCC). METHODS: This prospective multicenter trial involved 10 institutions nationwide in Japan. A total of 57 patients were enrolled. The lateral neck was divided into 5 lymphatic basins. The lymphatic basin containing SNs was defined as the SN lymphatic basin. All patients underwent SLBD with backup selective neck dissection (I-III) combined with primary tumor removal. When SNs were found outside of levels I-III, including in the contralateral neck, SLBD was performed by removing the compartments containing SNs separately. SN metastasis was classified as isolated tumor cells (ITCs), micrometastasis, or macrometastasis. ITCs are defined as a lesion no larger than 0.2 mm in largest dimension and are classified as pN0. RESULTS: SN metastasis was observed in 22 cases. All metastatic lymph nodes, including false-negative cases, were detected in the SN lymphatic basin. Isolated tumor cells in the SNs did not affect prognosis, whereas micrometastasis tended to have poor prognosis. After adjusting for other risk factors, a positive SN remained a significant predictor of poor 5-year overall survival in pT2-4 OSCC. CONCLUSION: SLBD for intraoperative SN biopsy is a sufficient therapeutic procedure and is valuable for determining pathologic nodal stage in OSCC. SN positivity was demonstrated to be an independent predictor of poor prognosis in patients with pT2-4 disease undergoing SLBD with backup selective neck dissection (I-III).


Asunto(s)
Carcinoma de Células Escamosas , Neoplasias de Cabeza y Cuello , Neoplasias de la Boca , Ganglio Linfático Centinela , Carcinoma de Células Escamosas/patología , Neoplasias de Cabeza y Cuello/patología , Humanos , Ganglios Linfáticos/patología , Metástasis Linfática/patología , Neoplasias de la Boca/patología , Micrometástasis de Neoplasia/patología , Estadificación de Neoplasias , Estudios Prospectivos , Ganglio Linfático Centinela/patología , Ganglio Linfático Centinela/cirugía , Biopsia del Ganglio Linfático Centinela , Carcinoma de Células Escamosas de Cabeza y Cuello/patología
9.
Anticancer Res ; 42(10): 4907-4912, 2022 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-36192003

RESUMEN

BACKGROUND/AIM: Nivolumab has antitumor efficacy in patients with recurrent/metastatic head and neck squamous cell carcinoma (R/M HNSCC) who relapse within 6 months after platinum-based therapy; however, the efficacy of nivolumab for platinum-sensitive R/M HNSCC has not been shown. Therefore, this study compared the efficacy and safety of nivolumab for platinum-refractory and platinum-sensitive R/M HNSCC. PATIENTS AND METHODS: This was a retrospective study of patients who received nivolumab for R/M HNSCC who had been previously treated with platinum-based anticancer drugs. Patients were divided into a platinum-sensitive and a platinum-refractory group, and progression-free survival (PFS), overall survival (OS), the overall response rate (ORR) [complete response (CR) + partial response (PR)], the disease control rate (DCR) (CR + PR + stable disease), and the incidence of immune-related adverse events (irAEs) were compared between the two groups. RESULTS: We included 88 patients with squamous cell carcinoma: 60 with platinum-refractory disease and 28 with platinum-sensitive disease. The median PFS in the platinum-refractory and platinum-sensitive groups were 2.7 months and 5.3 months, respectively (p=0.03), and the median OS were 8.8 months and 17.1 months, respectively (p=0.06). There were no significant differences in the ORR, DCR, or incidence of irAEs between the two groups (p>0.99, p=0.11, and p>0.99, respectively). CONCLUSION: Nivolumab is a safe and effective treatment for platinum-sensitive R/M HNSCC.


Asunto(s)
Antineoplásicos , Carcinoma de Células Escamosas , Neoplasias de Cabeza y Cuello , Antineoplásicos/uso terapéutico , Carcinoma de Células Escamosas/secundario , Neoplasias de Cabeza y Cuello/tratamiento farmacológico , Humanos , Recurrencia Local de Neoplasia/patología , Nivolumab/efectos adversos , Platino (Metal)/uso terapéutico , Estudios Retrospectivos , Carcinoma de Células Escamosas de Cabeza y Cuello/tratamiento farmacológico
10.
J Clin Med ; 11(5)2022 Mar 07.
Artículo en Inglés | MEDLINE | ID: mdl-35268555

RESUMEN

This study compared the incidence of perioperative complications and swallowing function between free jejunal flap reconstruction and cutaneous free tissue flap construction. We included 223 patients who underwent hypopharyngeal reconstruction using free flap. At discharge, +the free jejunal flap was associated with a Functional Oral Intake Scale (FOIS) score of 1-6 in 132 cases (70%) and a score of 7 in 56 cases (30%). Regarding the cutaneous free tissue flaps, FOIS scores of 1-6 were observed in 18 cases (51%), and a score of 7 was noted in 17 cases (49%). Donor site complications occurred in 12% of the patients who underwent free jejunal flap procedures and in none of the patients who underwent cutaneous free tissue flap procedures. We found that the free jejunal flap had a regular dietary intake rate in 56 patients (30%), whereas cutaneous free tissue flaps had a regular dietary intake rate in 17 patients (49%). Cutaneous free tissue flaps had a significantly higher regular dietary intake rate at discharge and a significantly lower incidence of donor site complications than free jejunal flaps. In conclusion, free-flap reconstruction may be a better method than free jejunal flap reconstruction for the treatment of hypopharyngeal cancer.

11.
Anticancer Res ; 42(6): 3177-3183, 2022 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-35641283

RESUMEN

BACKGROUND/AIM: In patients with squamous cell carcinoma of the head and neck (SCCHN), delayed surgery can result in poorer postoperative function and prognosis due to the growth of the tumor and extended surgery. Further, delay may even make the tumor unresectable. To prevent tumor growth during the waiting period before surgery, S-1 has been administrated preoperatively at several facilities in Japan. To date, however, the safety and efficacy of preoperative S-1 remain unclear. PATIENTS AND METHODS: We conducted a retrospective cohort study of 118 patients with SCCHN treated with S-1 before radical surgery at 2 institutions in Japan. We evaluated the safety of S-1 therapy, which was evaluated by the incidence of grade 3 or greater adverse events (AEs). The rate of achievement of non-growth of tumors was also calculated. RESULTS: Regarding safety, 125 AEs of all grades were recorded in 71 patients (60%). Of these, grade 3 AEs were detected in 3 patients (3%), and no grade 4 or 5 AEs occurred. The nongrowth rate of primary lesions and lymph node metastases was 89% and 85%, respectively. CONCLUSION: Preoperative S-1 therapy might be useful, with acceptable toxicity, on an outpatient basis in patients with SCCHN.


Asunto(s)
Carcinoma de Células Escamosas , Neoplasias de Cabeza y Cuello , Carcinoma de Células Escamosas/tratamiento farmacológico , Carcinoma de Células Escamosas/patología , Carcinoma de Células Escamosas/cirugía , Neoplasias de Cabeza y Cuello/tratamiento farmacológico , Neoplasias de Cabeza y Cuello/cirugía , Humanos , Metástasis Linfática , Terapia Neoadyuvante , Estudios Retrospectivos , Carcinoma de Células Escamosas de Cabeza y Cuello/tratamiento farmacológico , Carcinoma de Células Escamosas de Cabeza y Cuello/cirugía
12.
Anticancer Res ; 42(3): 1607-1613, 2022 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-35220258

RESUMEN

BACKGROUND/AIM: There are no real-world comparative data of nivolumab doses of 3 mg/kg and 240 mg/body for recurrent/metastatic squamous cell carcinoma of the head and neck (R/M SCCHN). We investigated the efficacy and safety of nivolumab in treating recurrent/metastatic squamous cell carcinoma of the head and neck (R/M SCCHN) at different doses using real-world data. PATIENTS AND METHODS: R/M SCCHN patients who received nivolumab were divided into the 3 mg/kg and 240 mg/body groups and retrospectively examined for efficacy and safety. RESULTS: A total of 199 patients (3 mg/kg and 240 mg/body, 88 and 111 patients, respectively) were included. The 3 mg/kg vs. 240 mg/body groups had similar overall response rates (15% vs. 25, p=0.15), disease control rates (46% vs. 57%, p=0.15), overall survival (9.5 months vs. 10.9 months), and progression-free survival (3.7 months vs. 3.8 months, p=0.95). The incidence of immune-related adverse events was also similar in both groups. CONCLUSION: In R/M SCCHN patients, nivolumab showed similar efficacy and safety at doses of 3 mg/kg and 240 mg/body.


Asunto(s)
Neoplasias de Cabeza y Cuello/tratamiento farmacológico , Inhibidores de Puntos de Control Inmunológico/administración & dosificación , Recurrencia Local de Neoplasia , Nivolumab/administración & dosificación , Carcinoma de Células Escamosas de Cabeza y Cuello/tratamiento farmacológico , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Neoplasias de Cabeza y Cuello/inmunología , Neoplasias de Cabeza y Cuello/mortalidad , Neoplasias de Cabeza y Cuello/patología , Humanos , Inhibidores de Puntos de Control Inmunológico/efectos adversos , Masculino , Persona de Mediana Edad , Nivolumab/efectos adversos , Supervivencia sin Progresión , Estudios Retrospectivos , Carcinoma de Células Escamosas de Cabeza y Cuello/inmunología , Carcinoma de Células Escamosas de Cabeza y Cuello/mortalidad , Carcinoma de Células Escamosas de Cabeza y Cuello/secundario , Factores de Tiempo , Tokio , Adulto Joven
13.
Sci Rep ; 12(1): 6917, 2022 04 28.
Artículo en Inglés | MEDLINE | ID: mdl-35484369

RESUMEN

Prophylactic elective neck dissection (ND) with navigation surgery using radioisotope-based sentinel lymph node biopsy (SLNB) is non-inferior to elective ND in terms of survival but has an advantage in postoperative functional disability. We conducted a subgroup analysis to identify predictive factors for false-negative (FN)-SLNB in patients with early oral cavity cancer. This study is a supplementary analysis using the dataset of a previously reported randomized clinical trial on SLN navigation surgery for oral cancers. This study investigated the association of clinical and SLN-related factors with false-negative cases in the SLNB group. From 2011 to 2016, 275 patients were enrolled and randomly assigned to the ND and SLNB study groups, with 134 patients assigned to the SLNB group. In the SLNB group, seven cases with negative SLNs and neck recurrences were judged as FN-SLNBs according to the general definition. The number of detected SLNs with and without adjusting for the propensity score was significantly associated with FNs in the logistic analysis. FN-SLNB was associated with the number of identified SLNs, suggesting the need for careful postoperative monitoring for neck recurrence in patients with one or two identified SLNs after acquiring sufficient experience in the identification technique.


Asunto(s)
Neoplasias de la Boca , Biopsia del Ganglio Linfático Centinela , Humanos , Neoplasias de la Boca/patología , Neoplasias de la Boca/cirugía , Cuello/patología , Disección del Cuello , Biopsia del Ganglio Linfático Centinela/métodos
14.
J Clin Oncol ; 39(18): 2025-2036, 2021 06 20.
Artículo en Inglés | MEDLINE | ID: mdl-33877855

RESUMEN

PURPOSE: This study aimed to compare patients with early oral cavity squamous cell carcinoma (OCSCC) (tumor category [T] 1-2, node-negative, and no distant metastasis) treated with traditional elective neck dissection (ND) with those managed by sentinel lymph node biopsy (SLNB) using survival and neck function and complications as end points. METHODS: Sixteen institutions in Japan participated in the study (trial registration number: UMIN000006510). Patients of age ≥ 18 years with histologically confirmed, previously untreated OCSCC (Union for International Cancer Control TNM Classification of Malignant Tumors 7th edition T1-2, node-negative no distant metastasis), with ≥ 4 mm (T1) depth of invasion, were randomly assigned to undergo standard selective ND (ND group; n = 137) or SLNB-navigated ND (SLNB group; n = 134). The primary end point was the 3-year overall survival rate, with a 12% noninferiority margin; secondary end points included postoperative neck functionality and complications and 3-year disease-free survival. Sentinel lymph nodes underwent intraoperative multislice frozen section analyses for the diagnosis. Patients with positive sentinel lymph nodes underwent either one-stage or second-look ND. RESULTS: Pathologic metastasis-positive nodes were observed in 24.8% (34 of 137) and 33.6% (46 of 134) of patients in the ND and SLNB groups, respectively (P = .190). The 3-year overall survival in the SLNB group (87.9%; lower limit of one-sided 95% CI, 82.4) was noninferior to that in the ND group (86.6%; lower limit 95% CI, 80.9; P for noninferiority < .001). The 3-year disease-free survival rate was 78.7% (lower limit 95% CI, 72.1) and 81.3% (75.0) in the SLNB and ND groups, respectively (P for noninferiority < .001). The scores of neck functionality in the SLNB group were significantly better than those in the ND group. CONCLUSION: SLNB-navigated ND may replace elective ND without a survival disadvantage and reduce postoperative neck disability in patients with early-stage OCSCC.


Asunto(s)
Ganglios Linfáticos/cirugía , Neoplasias de la Boca/cirugía , Biopsia del Ganglio Linfático Centinela/métodos , Carcinoma de Células Escamosas de Cabeza y Cuello/cirugía , Adulto , Anciano , Anciano de 80 o más Años , Supervivencia sin Enfermedad , Femenino , Humanos , Escisión del Ganglio Linfático/métodos , Ganglios Linfáticos/patología , Masculino , Persona de Mediana Edad , Neoplasias de la Boca/patología , Recurrencia Local de Neoplasia/patología , Ganglio Linfático Centinela/patología , Ganglio Linfático Centinela/cirugía , Carcinoma de Células Escamosas de Cabeza y Cuello/patología , Adulto Joven
15.
Acta Otolaryngol ; 140(2): 170-174, 2020 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-31825701

RESUMEN

Background: Few studies have demonstrated the utility of pharyngeal interposition graft (PIG) applying pectoralis major myocutaneous flap (PMMCF) by comparing pharyngocutaneous fistula (PCF) rates.Objective: The objective of this retrospective study was to clarify the utility of PIG applying PMMCF in reducing post-operative complications due to salvage total laryngectomy (STL).Material and methods: STL was performed in 59 patients with recurrent laryngeal cancer after radiotherapy, comprising 37 non-PMMCF patients and 22 PMMCF patients. The primary endpoint was PCF rate. Comparisons were made between two groups: a group with simple closure not using PMMCF (non-PMMCF group), and the other with PMMCF used in a PIG (PMMCF group).Results: PCF occurred in 15 of the 59 subjects (25.4%), including 13 of the 37 patients in the non-PMMCF group (35.1%) and 2 of the 22 patients in the PMMCF group (9.1%). PCF rate was significantly lower in the PMMCF group than in the non-PMMCF group (p = .033).Conclusions and significance: We demonstrated that PIG applying PMMCF significantly reduced the PCF rate due to STL. In the future, surgeons need to conduct research focused on additional innovations to reduce post-operative complications as much as possible.


Asunto(s)
Fístula Cutánea/prevención & control , Neoplasias Laríngeas/cirugía , Recurrencia Local de Neoplasia/cirugía , Músculos Pectorales/cirugía , Complicaciones Posoperatorias/prevención & control , Colgajos Quirúrgicos , Anciano , Fístula Cutánea/etiología , Femenino , Humanos , Neoplasias Laríngeas/radioterapia , Laringectomía/efectos adversos , Masculino , Recurrencia Local de Neoplasia/radioterapia , Complicaciones Posoperatorias/etiología , Estudios Retrospectivos , Terapia Recuperativa
16.
In Vivo ; 34(5): 2967-2972, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32871839

RESUMEN

BACKGROUND/AIM: Nivolumab, an anti-PD-1 inhibitor, has demonstrated efficacy in patients with several types of recurrent and metastatic (R/M) squamous cell carcinoma of the head and neck. We evaluated patients with R/M-NPC receiving nivolumab. PATIENTS AND METHODS: Twelve patients with R/M-NPC were enrolled at 4 institutions. The primary endpoint was overall survival, and secondary endpoints were i) progression-free survival (PFS), ii) overall response rate (ORR), iii) disease control rate (DCR), and iv) treatment-related toxicity. RESULTS: The 1-year survival rate was 75.8%, the median PFS was 2.8 months, and the 1-year PFS rate was 33.3%. The best therapeutic response was complete response in 2, stable disease in 3 and progressive disease in 7 patients. The ORR of all patients was 16.7% and the DCR was 41.7%. CONCLUSION: Nivolumab is a useful and relatively safe second-line systemic therapy in patients with R/M-NPC, and even patients who do not respond to nivolumab may survive for a long time.


Asunto(s)
Antineoplásicos Inmunológicos , Neoplasias Nasofaríngeas , Antineoplásicos Inmunológicos/efectos adversos , Humanos , Carcinoma Nasofaríngeo/tratamiento farmacológico , Recurrencia Local de Neoplasia/tratamiento farmacológico , Nivolumab/efectos adversos , Resultado del Tratamiento
17.
Cancer Med ; 9(14): 5015-5024, 2020 07.
Artículo en Inglés | MEDLINE | ID: mdl-32441463

RESUMEN

BACKGROUND: There is increasing evidence that immunotherapy with nivolumab, an anti-programmed death 1 monoclonal antibody, is effective in the treatment of recurrent or metastatic squamous cell carcinoma of the head and neck (R/M SCCHN). However, the predictive role of hematological inflammatory markers such as neutrophil-to-lymphocyte ratio (NLR) and the modified Glasgow prognostic score (mGPS) in patients with R/M SCCHN treated with nivolumab remains unclear. METHODS: We conducted a multi-institutional cohort study to evaluate the impact of pretreatment NLR and mGPS on overall survival (OS) and progression-free survival (PFS) in patients with R/M SCCHN treated with nivolumab in Japan. From 2012 to 2013, 102 patients were eligible, of whom 88 were finally included in the analysis. mGPS was calculated as follows: mGPS of 0, C-reactive protein (CRP) ≤1.0 mg/dL; 1, CRP > 1.0 mg/dL; and 2, CRP > 1.0 mg/dL and albumin < 3.5 mg/dL. Optimal cutoff point of dichotomized NLR was calculated using the area under the receiver operating characteristic curve (AUROC). Hazard ratios (HRs) and 95% confidence intervals (95% CIs) were estimated by Cox proportional hazard models adjusted by potential confounders. RESULTS: Higher NLR was significantly associated with worse survival (1-year OS: 45.3% vs 16.3%, log-rank P-value < .001, adjusted HR: 4.40 (95% CIs: 1.78-10.88); one-year PFS: 39.1% vs 9.0%, P-value = .001, adjusted HR: 3.37 (95% CI: 1.64-6.92)). In addition, high mGPS (=2) was significantly associated with worse survival compared to low mGPS (=0) (1-year OS: 37.4% vs 26.1%, P-value = .004, adjusted HR: 4.20 (95% CI:1.54-11.49); 1-year PFS: 41.5% vs 24.8%, P-value = .007, adjusted HR: 2.01 (95% CI: 0.87-4.68)). These associations were consistent with subgroup analyses stratified by potential confounders. CONCLUSIONS: Pretreatment NLR and mGPS might be predictive markers of survival in patients with R/M SCCHN treated with nivolumab.


Asunto(s)
Antineoplásicos Inmunológicos/uso terapéutico , Nivolumab/uso terapéutico , Carcinoma de Células Escamosas de Cabeza y Cuello/tratamiento farmacológico , Adulto , Anciano , Anciano de 80 o más Años , Antineoplásicos Inmunológicos/farmacología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Metástasis de la Neoplasia , Nivolumab/farmacología , Pronóstico , Carcinoma de Células Escamosas de Cabeza y Cuello/patología , Adulto Joven
18.
Fukushima J Med Sci ; 66(3): 143-147, 2020 Dec 10.
Artículo en Inglés | MEDLINE | ID: mdl-33268599

RESUMEN

OBJECTIVE: The aim of this supplemental study of a sentinel node (SN) biopsy (SNB) trial for oral squamous cell carcinoma (OSCC) was to assess the effectiveness in identifying micrometastasis and determining whether elective neck dissection (END) is necessary. MATERIALS AND METHODS: Twenty-three patients with pathologically positive SNs were included. The sizes of the metastatic lesions in positive SNs (SMSNs) were classified and the rates of occult metastasis of non-SNs were compared. RESULTS: The patients were divided according to the SMSN:<0.2 mm (group A, n=3);0.2 mm to <2.0 mm (group B, n=7);and ≥2.0 mm (group C, n=13). The rates of occult metastasis in groups A, B, and C were 0% (0/3), 14% (1/7) and 23% (3/13), respectively. CONCLUSION: Rare cancer cell distribution to nodes other than SNs was observed in the patients with SN metastatic lesions of at least smaller than 0.2 mm in size, suggesting the possibility of defining SN micrometastasis in N0 OSCC.


Asunto(s)
Neoplasias de la Boca/patología , Micrometástasis de Neoplasia , Ganglio Linfático Centinela/patología , Carcinoma de Células Escamosas de Cabeza y Cuello/patología , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Metástasis Linfática , Masculino , Persona de Mediana Edad
19.
In Vivo ; 34(5): 2653-2657, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32871796

RESUMEN

BACKGROUND/AIM: Head and neck cancers account for 8% of all cancer cases worldwide. However, identifying the optimal treatment for recurrent or metastatic head and neck cancer (R/MHNSCC) has been challenging. The aim of this study was to evaluate the efficacy, safety, and prognostic factors of the outcome of patients with R/MHNSCC who were treated with weekly cetuximab and paclitaxel (Cmab-PTX). PATIENTS AND METHODS: The records of R/MHNSCC patients who were treated with Cmab-PTX in our institution between June 2013 and September 2017 were collected. We analyzed Overall survival (OS), progression-free survival (PFS), prognostic factors and adverse events. RESULTS: The records of 59 patients treated with Cmab-PTX were analyzed. The median PFS was 5.7 months, and the median OS was 11.8 months. Patients who had been administered cetuximab previously had shorter PFS and OS than those who had not. CONCLUSION: Cmab-PTX may be considered as a treatment option in head and neck R/MHNSCC patients.


Asunto(s)
Carcinoma de Células Escamosas , Neoplasias de Cabeza y Cuello , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Carcinoma de Células Escamosas/tratamiento farmacológico , Cetuximab/uso terapéutico , Neoplasias de Cabeza y Cuello/tratamiento farmacológico , Humanos , Recurrencia Local de Neoplasia/tratamiento farmacológico , Paclitaxel/uso terapéutico , Carcinoma de Células Escamosas de Cabeza y Cuello/tratamiento farmacológico
20.
Oral Oncol ; 109: 104873, 2020 Jun 27.
Artículo en Inglés | MEDLINE | ID: mdl-32604059

RESUMEN

OBJECTIVES: Intra-arterial chemoradiotherapy via a superficial temporal artery is reportedly a useful organ-preserving treatment for maxillary sinus squamous cell carcinoma. This study aimed to determine whether blood flow modification facilitates sufficient drug delivery to the entire carcinoma via the maxillary artery alone, even for advanced tumors. MATERIALS AND METHODS: A retrospective study of 10 patients who were diagnosed with locally advanced carcinoma (4 [40%] at stage T3, 5 [50%] at T4a, and 1 [10%] at T4b) from August 2016 to July 2018, with tumor blood flow from both the maxillary and facial arteries, was conducted. Patients underwent intra-arterial chemoradiotherapy, which involved chemotherapy with weekly cisplatin administration (40 mg/m2) and radiotherapy (70 Gy/35 fr), with facial artery ligation. The success rate of blood flow modification, as well as its therapeutic effects and safety, were evaluated, with a median follow-up period of 14.4 months (range: 12.3-35 months). RESULTS: The blood flow surrounding the tumor was changed from both the maxillary and facial arteries to the maxillary artery alone in all patients. A median of 9 chemotherapy courses (range: 8-10) were administered; the median total cisplatin dose was 350 mg/m2 (range: 320-360 mg/m2). Radiotherapy of 70 Gy/35 fr was used to treat all patients. Grade 3 oral mucositis (80%) and irradiation field dermatitis (40%) were observed. In all patients, complete response was achieved, and local recurrence was not observed for at least 1 year. CONCLUSION: Simplifying the blood flow around the tumor facilitates more standardized intra-arterial chemoradiotherapy via a superficial temporal artery procedure.

SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA