Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 31
Filtrar
1.
Turk J Pediatr ; 61(1): 139-141, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31559737

RESUMO

Demirsoy U, Alparslan B, Sen MC, Anik Y, Akansel G, Görür G, Gürel B, Aksu G, Çorapçioglu F. More than Ophelia syndrome: Multiple paraneoplastic syndromes in pediatric Hodgkin lymphoma. Turk J Pediatr 2019; 61: 139-141. Paraneoplastic syndromes in Hodgkin lymphoma (HL) can be seen with different symptoms and organ findings within a significant time before definite diagnosis of the primary disease. Achalasia, Holmes-Adie pupil, and limbic encephalitis are rarely reported paraneoplastic components in pediatric HL. In this report, we present an 11-year-old girl who had all these three paraneoplastic components synchronously before HL was identified.


Assuntos
Síndrome de Adie/etiologia , Acalasia Esofágica/etiologia , Doença de Hodgkin/diagnóstico , Encefalite Límbica/etiologia , Síndromes Paraneoplásicas/diagnóstico , Criança , Feminino , Humanos
2.
In Vivo ; 30(4): 451-6, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27381608

RESUMO

AIM: Radiation-induced fibrosis (RIF) has since long been considered as irreversible. Further understanding of its mechanisms has led to trials investigating RIF treatment and prevention. The effect of superoxide dismutase (SOD)-gliadin, an oral form of SOD that resists gastrointestinal inactivation, on RIF treatment was evaluated in this experimental study. MATERIALS AND METHODS: A total of 36 Wistar albino mice were randomly distributed into four groups. According to group, 25 Gy radiation or sham-radiation were performed on day 0. Acute and late reactions were recorded. After 6 months, mice were treated with SOD-gliadin, 10,000 units per kg per day, or placebo. SOD-gliadin and placebo treatments were administered daily for 8 days by oral gavage. Later the mice were sacrificed, dissected and histopathologically analyzed. Accumulated hyaline and collagen at the dermis is an indicator of fibrosis. Therefore measurements of the dermal thickness were used to quantify the degree of RIF. Additionally, the morphological changes were analyzed, and the differences reported. RESULTS: The mean and standard deviation for dermal thickness were 0.45±0.09 mm in the sham-irradiated placebo-treated group, 0.51 mm±0.16 mm in the sham-irradiated SOD-gliadin-treated group, 0.92 mm±0.23 mm in the irradiated placebo-treated group and 0.71 mm±0.17 mm in the irradiated SOD-gliadin-treated group. The difference in mean dermal thickness between irradiated placebo-treated and irradiated SOD-gliadin-treated mice was statistically significant (p=0.002). CONCLUSION: Quality of life while prolonging survival has an increasing importance in patients with cancer. RIF can be a crucial problem after all radiotherapy modalities. SOD-gliadin has advantageous effects on conditions that call for an increased expression of antioxidant enzymes. The results of our study suggest that oral SOD-gliadin may prevent or ameliorate RIF and patients can benefit from the positive effects of SOD.


Assuntos
Fibrose/tratamento farmacológico , Gliadina/farmacologia , Extratos Vegetais/farmacologia , Lesões Experimentais por Radiação/tratamento farmacológico , Dermatopatias/tratamento farmacológico , Superóxido Dismutase/farmacologia , Animais , Antioxidantes/farmacologia , Relação Dose-Resposta à Radiação , Feminino , Fibrose/patologia , Camundongos , Lesões Experimentais por Radiação/patologia , Dermatopatias/patologia
3.
Ann Plast Surg ; 75(2): 219-30, 2015 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-26165573

RESUMO

INTRODUCTION: Radiation injury results in chronically ischemic tissue. Radionecrosis can be encountered in severe cases. Mesenchymal stem cells (MSCs) have a therapeutic effect on ischemia-related lesions. In here, effects of bone-marrow derived MSC and vascular endothelial growth factor (VEGF) gene-transfected MSC (VEGF-MSC) treatment on expanded skin with irradiation injury is investigated. METHODS: Silicone tissue expander (50 cm) was placed subcutaneously and expanded weekly up to 60 cm in 24 Sprague Dawley rats. Single fraction (30 Gy) radiotherapy was applied to the 2 × 2 cm area of the expanded skin. Dulbecco modified Eagle medium without cell component, MSCs, and VEGF-MSCs were injected subcutaneously at the irradiation-expansion sites. Skin samples were evaluated by histomorphometry and immunohistochemistry. Perfusion rate of the samples was assessed by scintigraphy. RESULTS: Epidermal thickness of irradiated-expanded skin was increased after MSC and VEGF-MSC treatments, whereas dermal and capsule thicknesses did not change. The MSC and VEGF-MSC treatments were effective in preserving, respectively, CD31 and VEGF expressions at a similar level as expanded skin after irradiation injury. The VEGF-MSC treatment significantly elevated CD31 levels in the irradiated tissue. Skin perfusion results were consistent with the CD31 and VEGF expressions. The MSC and VEGF-MSC treatments were effective in increasing proliferating cell nuclear antigen (PCNA) expression in irradiation zone. The VEGF-MSC treatment was efficient in reducing both expansion- and irradiation-related apoptosis. CONCLUSION: Vascular impairment and dermal insufficiency due to tissue expansion and irradiation injury can easily result in a wound hard to repair. The MSCs and VEGF-MSCs can promote neovascularization, reverse the effect of irradiation, and provide more durable soft tissue for expansion/implant reconstruction.


Assuntos
Transplante de Células-Tronco Mesenquimais/métodos , Lesões Experimentais por Radiação/terapia , Pele/efeitos da radiação , Fator A de Crescimento do Endotélio Vascular/uso terapêutico , Animais , Biomarcadores/metabolismo , Humanos , Células-Tronco Mesenquimais/metabolismo , Ratos , Ratos Sprague-Dawley , Pele/irrigação sanguínea , Resultado do Tratamento , Fator A de Crescimento do Endotélio Vascular/metabolismo
4.
Asian J Androl ; 17(6): 892-8; discussion 897, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26112487

RESUMO

Radiotherapy (XRT) is a curative treatment option for prostate cancer (PCa). Recent XRT technologies allow higher dose therapy that lead to increased local control with less adjacent tissue damage. Additionally, receiving neo-adjuvant or adjuvant hormonotherapy (HT) during radiation therapy increases the curative effect. The aim of this paper is to review the current literature and guidelines on external beam radiation therapy for PCa. However, brachytherapy and radiosurgery, a recently evolving relatively new technology for the radiotherapeutic management of localized PCa, are beyond the scope of this paper.


Assuntos
Adenocarcinoma/radioterapia , Prostatectomia , Neoplasias da Próstata/radioterapia , Antagonistas de Androgênios/uso terapêutico , Antineoplásicos Hormonais/uso terapêutico , Quimiorradioterapia Adjuvante , Humanos , Masculino , Seleção de Pacientes , Doses de Radiação , Planejamento da Radioterapia Assistida por Computador , Radioterapia Adjuvante
5.
Turk J Pediatr ; 57(4): 359-66, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-27186698

RESUMO

The aim of this study was to assess the demographic, clinic data, prognostic factors and treatment/follow-up results of children who were diagnosed with Hodgkin lymphoma and followed in our center of Pediatric Oncology, Kocaeli University Medical Faculty, Kocaeli, Turkey, for 10 years. This retrospective study evaluated 41 patients with Hodgkin lymphoma who were younger than 18 years-old. All patients were treated with risked adapted ABVD (Adriamycin, Bleomycin, Vincristine, Dacarbazine) chemotherapy and also received involved field radiotherapy. Thirty-two patients (78%) were males and 9 (22%) were females, with a mean age of 10.7±4.0 years. The histopathological diagnosis was mixed cellular type in 51.2% of the patients. B symptoms (unexplained fever, unexplained weight loss, drenching night sweats) were present in 53.7% of the patients and 36.6% of the patients were at advanced stage at the time of the diagnosis. The 3-year overall and event-free survival rates were 88% and 5-year overall and event-free survival rates were 88%, 78%. Age, stage, treatment risk groups, presence of B symptoms and hematological parameters had no significant effect on overall and event-free survival in univariate analysis while bulky disease was the only significant factor on overall survival. Our treatment policy was succesful regarding the similar survival rates in the treatment risk groups, however novel treatment strategies adopting the early response with the reduction of adverse effects are planned in the near future.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Doença de Hodgkin/terapia , Adolescente , Bleomicina/uso terapêutico , Criança , Pré-Escolar , Terapia Combinada , Dacarbazina/uso terapêutico , Doxorrubicina/uso terapêutico , Feminino , Seguimentos , Doença de Hodgkin/mortalidade , Humanos , Masculino , Estadiamento de Neoplasias , Prognóstico , Indução de Remissão , Estudos Retrospectivos , Taxa de Sobrevida , Resultado do Tratamento , Turquia , Vimblastina/uso terapêutico
6.
Oncol Res Treat ; 37(7-8): 396-9, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25138299

RESUMO

BACKGROUND: The prognostic impacts of histopathological classification, Masaoka staging system, extent of surgery, and adjuvant treatment approaches in thymic epithelial tumors (TETs) were investigated. MATERIAL AND METHODS: Records of 22 patients were retrospectively reviewed. Total thymectomy was performed on 5 patients and thymectomy on 17. Complete resection was achieved for 14 patients. Radiation therapy (RT) was considered for all patients with stage III or IV disease and all patients undergoing incomplete resections. RESULTS: Local control had been achieved in all patients and all were alive with no evidence of disease (ANED) at 0.2-7.8 years (median, 2.3 years). Of 4 patients with stage II disease, 2 (favorable group) had undergone complete resections and 2 (intermediate group) had undergone incomplete resections. Those undergoing incomplete resections had received RT. Of these 4 patients, all were ANED. All 4 patients with Masaoka stage III disease that were involved in the study had undergone incomplete resections and had received RT. Also, these patients were ANED. CONCLUSIONS: Patients with TETs undergoing less than complete resections might be referred for RT in the postoperative setting, while the role of RT in patients undergoing complete resections remains unclear.


Assuntos
Timoma/radioterapia , Neoplasias do Timo/radioterapia , Adulto , Idoso , Terapia Combinada , Intervalo Livre de Doença , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Prognóstico , Radioterapia Adjuvante , Taxa de Sobrevida , Timectomia , Timoma/mortalidade , Timoma/patologia , Timoma/cirurgia , Neoplasias do Timo/mortalidade , Neoplasias do Timo/patologia , Neoplasias do Timo/cirurgia
7.
Radiat Oncol ; 9: 137, 2014 Jun 14.
Artigo em Inglês | MEDLINE | ID: mdl-24928361

RESUMO

BACKGORUND: The aim of this study was to evaluate dysphagia in patients with head and neck cancer (HNC) undergoing three-dimensional conformal radiation therapy using objective and subjective tools simultaneously and to associate the clinical correlates of dysphagia with dosimetric parameters. METHODS: Twenty patients were included in the study. The primary tumor and the involved lymph nodes (LN) were treated with 66-70 Gy, the uninvolved LN were treated with 46-50 Gy. Six swallowing structures were identified: the superior pharyngeal constrictor muscle (SPCM), the middle pharyngeal constrictor muscle (MPCM), the inferior pharyngeal constrictor muscle (IPCM), the base of tongue (BOT), the larynx and the proximal esophageal sphincter (PES). Dysphagia was evaluated using videofluoroscopy and European Organization for Research and Treatment of Cancer (EORTC) QoL questionnaire (QLQ-C30) and supplemental EORTC QoL module for HNC (QLQ-H&N35). The evaluations were performed before treatment, at 3 months and at 6 months following treatment. RESULTS: On objective evaluation, the Dmax for the larynx and the sub-structures of the PCM were correlated with impaired lingual movement, BOT weakness and proximal esophageal stricture at 3 months, whereas the V65, the V70and the Dmax for the larynx was correlated with BOT weakness and the V65, the V70, the Dmax or the Dmean for the sub-structures of the PCM were correlated with impaired lingual movement, BOT weakness, reduced laryngeal elevation, reduced epiglottic inversion and aspiration at 6 months following treatment. On subjective evaluation, the V60, the Dmax and the Dmean for SPCM were correlated with QoL scores for HNSO at 3 months, whereas the V70 for SPCM were correlated with QoL scores for HNPA and the V60, the V65, the V70, the Dmax and the Dmean for SPCM were correlated with QoL scores for HNSO at 6 months following treatment. CONCLUSIONS: The use of multiple dysphagia-related endpoints to complement eachother rather than to overlap with one another, as well as the use of multiple evaluations over time to represent a scale of early to late findings might provide a better insight in terms of the association of the clinical correlates of dysphagia with the dose-volume data for the dysphagia-related anatomical structures.


Assuntos
Transtornos de Deglutição/diagnóstico , Fluoroscopia/métodos , Neoplasias de Cabeça e Pescoço/radioterapia , Qualidade de Vida , Radioterapia Conformacional/efeitos adversos , Gravação em Vídeo/métodos , Adulto , Idoso , Transtornos de Deglutição/etiologia , Feminino , Seguimentos , Neoplasias de Cabeça e Pescoço/patologia , Humanos , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Prognóstico , Inquéritos e Questionários
8.
J Pediatr Hematol Oncol ; 36(2): 156-8, 2014 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-24072245

RESUMO

Giant cell tumor of the bone (GCTB) is usually a benign, locally aggressive tumor with metastatic potential. Histogenesis of GCTB is unknown and a correlation has not been found between histologic and clinical course. For this reason, many authors consider its prognosis unpredictable. Lung metastasis after GCTB treatment is well known and generally has unfavorable outcome, despite varied chemotherapy regimens. Denosumab, which inhibits RANK-RANKL interaction, is a new, promising actor among targeted therapeutic agents for GCTB. In this report, we emphasize on early rapid response to denosumab in metastatic GCTB.


Assuntos
Anticorpos Monoclonais Humanizados/uso terapêutico , Antineoplásicos/uso terapêutico , Neoplasias Ósseas/tratamento farmacológico , Tumor de Células Gigantes do Osso/tratamento farmacológico , Adolescente , Neoplasias Ósseas/patologia , Denosumab , Feminino , Humanos , Metástase Neoplásica , Terapia de Salvação/métodos
9.
Asian Pac J Cancer Prev ; 14(4): 2283-8, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23725128

RESUMO

BACKGROUND: Efficacy of chemotherapy plus bevacizumab has been shown in patients with metastatic colorectal cancer (mCRC) compared with chemotherapy alone. The aim of the present study was to evaluate the efficacy and safety of FOLFIRI or XELIRI regimens in combination with bevacizumab for mCRC patients in a first-line setting. MATERIALS AND METHODS: A total of 132 patients with previously untreated and histologically confirmed mCRC were included. They were treated with either FOLFIRI-Bevacizumab (Bev) or XELIRI-Bev according to physician preference. The efficacy and safety of the two regimens were compared. RESULTS: Between 2006 and 2010, 68 patients were treated with the XELIRI-Bev regimen, while the remaining 64 patients received the FOLFIRI-Bev regimen. The median age was 58.5 years (53.6 years in the FOLFIRI-Bev and 59.7 years in the XELIRI-Bev arm, p=0.01). Objective response rate was 51.6% for FOLFIRI-Bev versus 41.2% for XELIRI-Bev (p=0.38). At the median follow-up of 24.5 months, the median progression-free survival (PFS) was not different between two groups (14.2 months in FOLFIRI-Bev vs. not reached in the XELIRI-Bev, p=0.30). However, median overall survival time for the FOLFIRI-Bev arm was better than that for patients treated with XELIRI- Bev, but these differences was not statistically significant (37.8 months vs. 28.7 months, respectively, p=0.58). Most commonly reported grade 3-4 toxicities (FOLFIRI-Bev vs XELIRI-Bev) were nausea/vomiting (7.8% vs. 14.7%, p=0.27), diarrhea (10.9% vs 22.1%, p=0.10), hand-foot syndrome (0% vs 8.8%, p=0.02) and neutropenia (18.7% vs 27.9%, p=0.22). CONCLUSION: Our results showed that FOLFIRI-Bev and XELIRI-Bev regimens were similarly effective treatments in a first-line setting for patients with untreated mCRC, with manageable adverse event profiles.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias Colorretais/tratamento farmacológico , Neoplasias Hepáticas/tratamento farmacológico , Neoplasias Pulmonares/tratamento farmacológico , Adulto , Idoso , Anticorpos Monoclonais Humanizados/administração & dosagem , Bevacizumab , Camptotecina/administração & dosagem , Camptotecina/análogos & derivados , Capecitabina , Neoplasias Colorretais/mortalidade , Neoplasias Colorretais/patologia , Desoxicitidina/administração & dosagem , Desoxicitidina/análogos & derivados , Feminino , Fluoruracila/administração & dosagem , Fluoruracila/análogos & derivados , Seguimentos , Humanos , Irinotecano , Leucovorina/administração & dosagem , Neoplasias Hepáticas/mortalidade , Neoplasias Hepáticas/secundário , Neoplasias Pulmonares/mortalidade , Neoplasias Pulmonares/secundário , Masculino , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Prognóstico , Estudos Retrospectivos , Taxa de Sobrevida , Adulto Jovem
10.
Am J Otolaryngol ; 34(5): 582-5, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23410904

RESUMO

A solitary mucosal angiokeratoma is an extremely rare presentation. In this report, we present a 67-year-old woman with a 3 cm solitary angiokeratoma involving the tongue, who was treated with intensity modulated radiation therapy after declining surgery. The patient is alive and free of disease at 1.5 years following radiation therapy.


Assuntos
Angioceratoma/radioterapia , Neoplasias da Língua/radioterapia , Idoso , Angioceratoma/diagnóstico , Biópsia , Diagnóstico Diferencial , Feminino , Seguimentos , Humanos , Imageamento por Ressonância Magnética , Radioterapia de Intensidade Modulada/métodos , Neoplasias da Língua/diagnóstico
11.
Balkan Med J ; 30(1): 64-7, 2013 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-25207071

RESUMO

OBJECTIVE: Functional Living Index Emesis (FLIE) is developed to evaluate the relationship between emesis and it's effects on patient's daily life and is far more relevant to detect the effectiveness of antiemetic treatment compared with self-diary reports. In this study, the efficacy of oral neurokinin-1 antagonist aprepitant on the prevention of chemotherapy-induced nausea and vomiting and quality of life is evaluated with FLIE. STUDY DESIGN: Cross sectional study. MATERIAL AND METHODS: Sixty patients with Non-Small Cell Lung Cancer (NSCLC) receiving a chemotherapy regimen consisting of Cisplatin and Docetaxel were evaluated. The patients were prospectively randomized to two groups before the first cycle of chemotherapy. Patients in Group A (31 patients) received 3 daily doses of aprepitant along with oral ondansetron and dexamethasone. The patients in group B (29 patients) received only ondansetron and dexamathasone. The efficacy of both regimens was evaluated by a modified Turkish version of FLIE scale consisting of 18 questions. RESULTS: The number of patients with complete response was 31 in the whole group. Of these 18 patients (58%) were in Group A (Aprepitant) and 13 patients in group B (42%). Median FLIE score in group A was 24.97 (±12.45) while it was 38.1 (±26.987) in group B and the difference was statistically significant (p=0.022). Total score >20 was seen in only 5 of 31 patients in aprepitant group (16%) showing the significant efficiency of aprepitant on quality of life, while in group B, 13 of 29 patients (44%) had total scores >20 (p=0.02). CONCLUSION: Regarding these findings, it is certain to state that aprepitant in combination with other drugs optimizes protection against both nausea and vomiting compared to the prior standard of care, and must be recommended as first-line therapy for patients who are treated with moderately or highly emetogenic chemotherapy.

12.
Asian Pac J Cancer Prev ; 13(11): 5741-6, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-23317249

RESUMO

AIM: Although preoperative chemoradiatherapy (CRT) has proven its benefits in terms of decreased toxicity, there is still a considerable amount of cases that do not receive postoperative CRT. Oncologists at different geographic locations still need to know the long-term effects of this treatment in order to manage patients successfully. The current paper reports on long-term quality of life (QOL) and late side effects after adjuvant CRT in rectal cancer patients from 5 centers in Anatolia. METHODS: Rectal cancer patients treated with postoperative CRT with minimum 1-year follow-up and were in complete remission, were evaluated according to RTOG and LENT-SOMA scales. They were also asked to complete Turkish version of EORTCQLQ-C30 questionnaire and the CR-38 module. Each center participated with the required clinical data. RESULTS: Two hundred and thirty patients with median age of 55 years participated and completed the study. Median follow-up time was 5 years. All patients received RT concomitant with chemotherapy. Common parameters that both increased functional health scales and yielded better symptom scores were long term interval after treatment and sphincter-saving surgery. In addition, surgery type and follow-up time were determined to be predictors of QOL scores and late toxicity grade. CONCLUSION: Postoperative CRT was found to have a great impact on the long term QOL and side effects in rectal cancer survivors. The factors that adversely affect these are abdominoperineal resection and shorter interval. The findings may encourage life-long follow-up and cooperation with patients, which should be mentioned during the initial counseling.


Assuntos
Adenocarcinoma/terapia , Antimetabólitos Antineoplásicos/uso terapêutico , Fluoruracila/uso terapêutico , Recidiva Local de Neoplasia/terapia , Qualidade de Vida , Neoplasias Retais/terapia , Adenocarcinoma/patologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Quimiorradioterapia Adjuvante , Fracionamento da Dose de Radiação , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/patologia , Estadiamento de Neoplasias , Prognóstico , Neoplasias Retais/patologia , Inquéritos e Questionários , Taxa de Sobrevida , Turquia , Adulto Jovem
13.
Dig Dis Sci ; 56(11): 3226-34, 2011 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-21660487

RESUMO

BACKGROUND: The prognostic significance of the subclassification of pT2 tumors and the association of these categories with other clinicopathological factors in gastric cancer patients were investigated. METHODS: A total of 224 patients with pT2 gastric cancer who had undergone curative gastrectomy and lymph node dissection were retrospectively analyzed. The prognostic role of the subclassification of pT2 tumors was evaluated by univariate and multivariate analysis. RESULTS: Of 224 patients, 75 (33.5%) were classified as having pT2a tumors and 149 (66.5%) as having pT2b tumors. The prevalence of large-sized tumors (P < 0.003), lymph node involvement (P < 0.018), and lymphatic (P = 0.016), blood vessel (P = 0.001), and perineural invasion (P = 0.001) was significantly higher for pT2b tumors than for pT2a tumors. The rate of recurrence for pT2a cancers was significantly lower than that for pT2b cancers (P = 0.001).Median overall survival (OS) times and three-year OS of patients with a pT2b tumor were significantly worse than for patients with a pT2a tumor (P < 0.001).When patients were analyzed according to lymph node involvement, the prognosis of patients with pT2aN(1) cancers was significantly better than that of patients with pT2bN(1) (P < 0.001). Multivariate analysis indicated that the pT2 subdivision was an independent prognostic factor for OS (P = 0.006), as were pN stage, clinical stage, and recurrence. CONCLUSION: Our results showed that subclassification of pT2 tumors into pT2a or pT2b was an important prognostic indicator for patients with pT2 gastric cancers who underwent curative gastrectomy. In the TNM staging system, subdivision of pT2 tumors should be undertaken routinely to detect gastric cancer patients who have a poor prognosis and to define patients more accurately in terms of their mortality after curative resection in accordance with the new 2010 AJCC TNM staging classification. This may also help as a guide to more appropriate therapy for tumors with subserosal invasion (old pT2b or new pT3).


Assuntos
Neoplasias Gástricas/patologia , Estômago/patologia , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Gastrectomia , Humanos , Metástase Linfática , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Estadiamento de Neoplasias , Estudos Retrospectivos , Neoplasias Gástricas/classificação , Neoplasias Gástricas/mortalidade , Análise de Sobrevida , Turquia/epidemiologia
14.
Onkologie ; 33(12): 676-82, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-21124038

RESUMO

BACKGROUND: Although a number of studies have investigated whether tumor diameter is a prognostic factor in gastric cancer, no consensus was reached on its clinical importance. In this study, we aimed to determine the effect of tumor size on survival in patients with pT3 gastric cancer. PATIENTS AND METHODS: A total of 232 patients with pT3 gastric cancer, who underwent curative gastrectomy with D2 lymph node dissection, were retrospectively analyzed. Receiver operating characteristics analysis showed that the cutoff value for tumor size was 8 cm. On the basis of this cutoff point, patients were divided into 2 groups: small-size tumors (SST, ≤8 cm) and large-size tumors (LST, >8 cm). The prognostic significance of tumor size and the relationship between tumor size and other prognostic factors were evaluated. RESULTS: LST was detected in 44% of patients. Resection type, tumor site, lymph node metastasis, tumor differentiation, lymphatic vessel invasion, and blood vessel invasion were correlated with tumor size. The median survival of patients with SST was significantly better than that of patients with LST (107 vs. 18.2 months; p < 0.001). Multivariate analysis indicated that tumor size was an independent prognostic factor (p = 0.001; hazard ratio (HR): 0.43) as were resection type and blood vessel invasion. CONCLUSIONS: Our results show that tumor size is an important prognostic indicator in patients with pT3 gastric cancer, who underwent curative gastrectomy, and that the rate of LST increased with aggressiveness and stage of disease. Tumor size may be a useful and reliable prognostic factor for detection and staging in patients with gastric cancer, who have a poor prognosis after curative resection.


Assuntos
Neoplasias Gástricas/mortalidade , Neoplasias Gástricas/patologia , Carga Tumoral , Adulto , Idoso , Idoso de 80 Anos ou mais , Vasos Sanguíneos/patologia , Quimioterapia Adjuvante , Terapia Combinada , Feminino , Gastrectomia , Humanos , Excisão de Linfonodo , Masculino , Pessoa de Meia-Idade , Invasividade Neoplásica/patologia , Estadiamento de Neoplasias , Nervos Periféricos/patologia , Prognóstico , Curva ROC , Radioterapia Adjuvante , Estudos Retrospectivos , Neoplasias Gástricas/cirurgia , Carga Tumoral/efeitos dos fármacos
15.
Turk J Pediatr ; 51(1): 78-81, 2009.
Artigo em Inglês | MEDLINE | ID: mdl-19378898

RESUMO

Pleuropulmonary blastoma (PPB) is a very rare intrathoracic malignancy in childhood. It is an aggressive embryonal or blastemic neoplasm usually occurring in children younger than five years of age. PPB is treated with aggressive multimodal therapies consisting of surgery and chemotherapy. We present a case with PPB type II successfully treated with complete surgical resection following neoadjuvant chemotherapy. She has been free of disease for 33 months of follow-up. Complete surgical resection of the tumor at the time of diagnosis is the cornerstone of PPB management, but in the majority of patients, initial surgery is incomplete because a large tumor may involve vital structures. For this reason, patients with initially unresectable tumors should be treated with neoadjuvant chemotherapy to reduce the lesion to the point that it becomes resectable.


Assuntos
Neoplasias Pulmonares/tratamento farmacológico , Neoplasias Pulmonares/cirurgia , Blastoma Pulmonar/cirurgia , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Quimioterapia Adjuvante , Pré-Escolar , Feminino , Humanos , Imageamento por Ressonância Magnética , Terapia Neoadjuvante , Blastoma Pulmonar/tratamento farmacológico
16.
Cancer Chemother Pharmacol ; 64(3): 601-5, 2009 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-19123002

RESUMO

PURPOSE: Several studies have shown that the concurrent administration of chemotherapy (CHT) and radiotherapy (RT) is superior to RT alone in patients with inoperable non-metastatic squamous cell carcinoma of the head and neck (InSCCHN). We compared the efficacy and safety profile of RT and concurrent cisplatin CHT given in two different schedules to patients with previously untreated InSCCHN. METHODS: Fifty patients with previously untreated InSCCHN admitted to our oncology department were included in the study. Thirty of 50 (60%) patients with a younger age or good performance status (PS) (ECOG 0-1) received cisplatin 100 mg/m(2) on a 21-day schedule (group A). Other 20 (40%) patients with older age or poor PS (ECOG 2) received cisplatin 40 mg/m(2) on a 7-day schedule (group B). Each of the 50 patients received concurrent conventional dose RT according to primer tumor location. RESULTS: The median follow-up is 12 months for group A and 12.5 months for group B. Twenty-eight (93.3%) patients in group A and 18 (90%) in group B were evaluable for response. The complete response rate was 50% in group A and 40% in group B (P > 0.05). The objective response rate was 92% in group A and 90% in group B (P > 0.05). All grade 3-4 toxic events were seen in 16 (53.3%) of group A patients and 8 (40%) of group B patients (P > 0.05). CONCLUSIONS: Comparison between two treatment modalities appears to result in statistically similar response rates and adverse event profile. A randomized phase III trial is required to confirm the safety and efficacy of weekly cisplatin therapy in patients with poor PS and/or older age at diagnosis.


Assuntos
Antineoplásicos/administração & dosagem , Carcinoma de Células Escamosas/tratamento farmacológico , Cisplatino/administração & dosagem , Neoplasias de Cabeça e Pescoço/tratamento farmacológico , Adulto , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Antineoplásicos/efeitos adversos , Carcinoma de Células Escamosas/patologia , Carcinoma de Células Escamosas/radioterapia , Cisplatino/efeitos adversos , Terapia Combinada , Esquema de Medicação , Feminino , Seguimentos , Neoplasias de Cabeça e Pescoço/patologia , Neoplasias de Cabeça e Pescoço/radioterapia , Humanos , Masculino , Pessoa de Meia-Idade , Resultado do Tratamento
17.
J Craniomaxillofac Surg ; 37(1): 42-8, 2009 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-18804382

RESUMO

BACKGROUND: Thirty adult patients with head and neck soft tissue sarcoma (HNSTS) treated between 1987 and 2000 were retrospectively analysed. PATIENTS AND METHODS: The most frequent histopathological subtypes were chondrosarcomas (27%) and malignant fibrous histiocytoma (20%). The surgical resection was performed in 25 of the 30 patients (83%). Twenty-three patients in the surgical resection arm received postoperative radiotherapy. RESULTS: Five-year local control rates for patients with negative surgical margins (n=9), microscopically positive disease (n=10), gross residual disease (n=6) and inoperable cases (n=5) were 64, 70, 20 and 0%, respectively. However, there was no significant difference in local control between patients with negative or microscopically positive disease who received postoperative radiotherapy (71 vs. 70%). The patients who received doses>or=60 Gy had significantly higher local control rates than the ones who received doses lower than 60 Gy (p=0.048). The local control rates were lower in patients with grade 2-3 tumours when compared with grade 1 tumours (44 vs. 83%). The median overall survival of whole group was 31 months. Median survivals of patients receiving both surgery and radiotherapy with negative and microscopically positive margins were significantly better than patients who were not treated with surgery (34.8 and 36 vs. 13.3 months). CONCLUSION: Our results confirm that the optimal treatment of HNSTSs is complete surgical excision, and that postoperative adjuvant radiotherapy clearly improves local control.


Assuntos
Neoplasias de Cabeça e Pescoço/cirurgia , Terapia Neoadjuvante , Sarcoma/cirurgia , Adulto , Idoso , Neoplasias Ósseas/radioterapia , Neoplasias Ósseas/cirurgia , Quimioterapia Adjuvante , Condrossarcoma/radioterapia , Condrossarcoma/cirurgia , Intervalo Livre de Doença , Feminino , Seguimentos , Neoplasias de Cabeça e Pescoço/radioterapia , Histiocitoma Fibroso Maligno/radioterapia , Histiocitoma Fibroso Maligno/cirurgia , Humanos , Masculino , Neoplasias do Seio Maxilar/radioterapia , Neoplasias do Seio Maxilar/cirurgia , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/prevenção & controle , Neoplasia Residual/patologia , Segunda Neoplasia Primária/patologia , Neoplasias Nasais/radioterapia , Neoplasias Nasais/cirurgia , Dosagem Radioterapêutica , Radioterapia Adjuvante , Radioterapia Conformacional , Radioterapia de Alta Energia , Estudos Retrospectivos , Sarcoma/radioterapia , Sarcoma/secundário , Taxa de Sobrevida , Adulto Jovem
18.
Arch Gynecol Obstet ; 280(1): 153-6, 2009 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-19082834

RESUMO

Endometrial cancer (EC) is the most common malignancy of the female genital tract. Lymph node involvement is one of the major prognostic factors. Therefore, pelvic and paraaortic lymph nodes dissection is a part of the surgical management of these patients. Isolated peripheral lymph node metastasis has not been previously reported as a finding of recurrence in EC. We report a 67-year-old woman with recurrent EC presented with an isolated cervical lymph node metastasis (ICLM). Following the combination chemotherapy of doxorubicin, cisplatin and cyclophosphamide, her cervical lymph node was completely regressed. To our knowledge, this is the first case of recurrent EC presented with ICLM. We suggest that for women with EC who had isolated peripheral lymphadenopathies, peripheral lymph node metastasis should be considered as the finding of recurrence in patient with EC.


Assuntos
Carcinoma Endometrioide/diagnóstico , Neoplasias do Endométrio/patologia , Recidiva Local de Neoplasia/patologia , Idoso , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Carcinoma Endometrioide/tratamento farmacológico , Terapia Combinada , Neoplasias do Endométrio/terapia , Feminino , Fluordesoxiglucose F18 , Humanos , Metástase Linfática/diagnóstico , Metástase Linfática/patologia , Recidiva Local de Neoplasia/terapia , Tomografia por Emissão de Pósitrons
19.
Pediatr Hematol Oncol ; 25(6): 509-21, 2008 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-18728970

RESUMO

In recent years erythropoietic agents have become important tools in the management of anemia in cancer patients, improving hemoglobin (Hb) concentrations, reducing the need for transfusion, and enhancing quality of life. In this prospective and historically controlled study, the effects of epoetin beta on Hb concentrations and red blood cell transfusion needs in children with cancer receiving chemotherapy or radiotherapy have been investigated. Epoetin beta (150 U/kg/day, 3 days a week) was given subcutaneously to 22 children with cancer when Hb concentration < or = 10 g/dL. Data from these patients were compared with those from 20 historical control patients. Hb concentrations were studied weekly in the first 9 weeks, then weekly or fortnightly thereafter. Minimum, maximum, and mean Hb concentrations, frequency of red blood cell transfusion, and the number of red cell packs given were noted. Hb concentrations in weeks 6, 8, and 11 were clearly higher in the study group than the controls. The minimum Hb concentration of the study group was significantly higher than than the control group (7.98 +/- 0.73 [6.70-9.68] g/dL and 7.24 +/- 1.40 [5.50-11.20] g/dL, respectively [p = .038]). A total of 8 units of erythrocyte suspension was given to 4 of the 22 patients in the epoetin group (0.36 unit per patient), while 16 of the 20 patients in the control group received 37 units of erythrocyte suspension in total (1.85 units per patient). The red cell transfusion requirement and the units of transfused erythrocytes per patient were clearly lower in the epoetin group (p < .001 for both of the parameters). No drug-related side effects were noted during epoetin therapy. Epoetin beta therapy provides significant increase in Hb concentrations in children with cancer under anticancer treatment, especially after the sixth week of therapy. Administration of epoetin beta prevents profound decreases in Hb concentrations in the course of therapy and effectively reduces the need for red blood cell transfusions. Epoetin beta was found to be safe and effective in the dosage and the scheme it was used in our study.


Assuntos
Anemia/tratamento farmacológico , Eritropoetina/administração & dosagem , Hematínicos/administração & dosagem , Neoplasias/complicações , Anemia/etiologia , Antineoplásicos/efeitos adversos , Transfusão de Sangue , Criança , Pré-Escolar , Feminino , Hemoglobinas/análise , Humanos , Masculino , Neoplasias/terapia , Radioterapia/efeitos adversos , Proteínas Recombinantes , Resultado do Tratamento
20.
Pediatr Hematol Oncol ; 25(3): 217-26, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18432505

RESUMO

Epithelioid cell granulomas may be associated with several neoplasms. Lymphomas may mimic or are associated with epithelioid granulomas. In this article the authors report a child with granulomatous reaction in B cell non-Hodgkin lymphoma and intracardiac thrombosis. Although cancer alone is a risk factor for thromboembolism, thrombosis is a multifactorial disorder with both hereditary and acquired risk factors. This is the first reported case of intracardiac thrombosis with MTHFR A1298C and factor XIII V34L mutations together with granulomatous reaction in non-Hodgkin lymphoma.


Assuntos
Granuloma/complicações , Cardiopatias/etiologia , Linfoma de Células B/complicações , Neoplasias do Mediastino/complicações , Trombose/etiologia , Substituição de Aminoácidos , Criança , Fator XIII/genética , Granuloma/genética , Granuloma/patologia , Cardiopatias/genética , Cardiopatias/patologia , Humanos , Linfoma de Células B/genética , Linfoma de Células B/patologia , Masculino , Neoplasias do Mediastino/genética , Neoplasias do Mediastino/patologia , Neoplasias do Mediastino/secundário , Mutação de Sentido Incorreto , Trombose/genética , Trombose/patologia
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA