Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 45
Filtrar
Mais filtros

Base de dados
País/Região como assunto
Tipo de documento
Intervalo de ano de publicação
1.
Bratisl Lek Listy ; 122(7): 519-525, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34161121

RESUMO

INTRODUCTION AND AIM OF STUDY: Chronic wounds are commonly colonized by various bacterial species and colonization frequently turns into wound infection, severely impairing healing process. With increasing antimicrobial resistance, the antimicrobial treatment of chronic wounds may be extremely challenging. Rediscovery of old and forgotten antimicrobial therapeutic options, such as apitherapy, may contribute to solving the problem of incurable chronic wound infections. Aim of this study was to evaluate the antimicrobial properties of four kinds of Slovak honey from ecological beekeeping against the most common bacterial species contaminating and infecting chronic wounds, and to compare these antimicrobial activities with those of the approved medical-grade Manuka honey. The impact of honey sterilisation methods and long-lasting storage on the bactericidal activity was also examined. MATERIAL AND METHODS: Antimicrobial activity of honey was detected against 7 bacterial collection strains by broth microdilution antimicrobial susceptibility test according to EUCAST. The results were statistically analysed by Fisherꞌs exact test. RESULTS AND CONCLUSIONS: Slovak ecologically produced honey samples demonstrated an excellent in vitro antibacterial activity, superior to the monofloral medical-grade Manuka honey activity. Neither the gamma-irradiation, nor the three-year-long storage had impact on the bactericidal activity of the tested honey (Tab. 4, Fig. 2, Ref. 53).


Assuntos
Anti-Infecciosos , Mel , Antibacterianos/farmacologia , Bactérias , Testes de Sensibilidade Microbiana , Eslováquia
2.
Bratisl Lek Listy ; 121(5): 370-372, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32356437

RESUMO

INTRODUCTION: The purpose of this paper is to present the development and design of an abdominal retractor which allows a single person to perform operations and the fixation of the operation instruments can be done with one hand. The additional devices make the operation more comfortable for surgeons. METHODS: Conventional measuring devices have been designed and applied for determining axial forces in a surgeon's forearm during operations. The same forces must be transmitted by the frame of the retractor. Thus a simple truss structure of a retractor was done. Several types of fixations have been proposed and tested using the rapid prototyping. Finally, the abdominal retractor was manufactured from stainless steel. RESULTS: The simple-to-use abdominal retractor was built. The standard surgery instruments were modified due to the fixation system of the frame. A wide variety of additional useful devices, such as a lamp, video camera etc., were also proposed. CONCLUSION: The present abdominal retractor is user-friendly and all components are easily sterilized by conventional methods (Fig. 7, Ref. 6) Keywords: abdominal retractor, stainless steel retractor, standard surger, fixation system of the frame, lamp, video camera, conventional methods.


Assuntos
Abdome , Instrumentos Cirúrgicos , Desenho de Equipamento
3.
Br J Surg ; 105(4): 419-428, 2018 03.
Artigo em Inglês | MEDLINE | ID: mdl-29417984

RESUMO

BACKGROUND: The aim of this prospective study was to assess whether [18 F]fluorodeoxyglucose PET can be used to predict histopathological response early in the course of neoadjuvant chemotherapy in patients with adenocarcinoma of the oesophagus and oesophagogastric junction. METHODS: Following the PET response criteria in solid tumours (PERCIST 1.0) as a standardized method for semiquantitative assessment of metabolic response, FDG-PET/CT was performed before (PET1) and after (PET2) initiation of the first cycle of chemotherapy. The relative changes in the peak standardized uptake value (ΔSUL) and total lesion glycolysis (ΔTLG) between PET1 and PET2 were correlated with histopathological response, defined as less than 50 per cent viable tumour cells in the resection specimen. A receiver operating characteristic (ROC) curve analysis was used to identify the optimal cut-off value with the highest accuracy of histopathological response prediction. RESULTS: PET2 was performed a median of 16 (range 12-22) days after the start of chemotherapy. Some 27 of 90 patients who underwent surgery had a histopathological response. There was no association between the median ΔSUL or median ΔTLG and the histopathological response. A post hoc analysis in 47 patients with PET2 performed 16 days or less after the start of chemotherapy showed that ΔTLG, but not ΔSUL, was associated with the histopathological response (P = 0·009). The optimal cut-off value of ΔTLG was 66 per cent or more. CONCLUSION: FDG-PET/CT after the first cycle of chemotherapy does not predict histopathological response in patients with adenocarcinoma of the oesophagus and oesophagogastric junction.


Assuntos
Adenocarcinoma/diagnóstico por imagem , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Neoplasias Esofágicas/diagnóstico por imagem , Junção Esofagogástrica/diagnóstico por imagem , Fluordesoxiglucose F18 , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada , Compostos Radiofarmacêuticos , Adenocarcinoma/tratamento farmacológico , Adenocarcinoma/patologia , Adenocarcinoma/cirurgia , Adulto , Idoso , Antineoplásicos/uso terapêutico , Quimioterapia Adjuvante , Neoplasias Esofágicas/tratamento farmacológico , Neoplasias Esofágicas/patologia , Neoplasias Esofágicas/cirurgia , Junção Esofagogástrica/patologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Terapia Neoadjuvante , Estudos Prospectivos , Curva ROC , Resultado do Tratamento
4.
Bratisl Lek Listy ; 116(12): 699-701, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-26924137

RESUMO

Within the project "Applied research trajectory hands in laparoscopic and endoscopic operations", ITMS Project code 26240220056, funded by the European Regional Development Fund and the state budget of the Slovak Republic, we created a technical background and algorithms for monitoring and evaluating the hand movements of the surgeon during laparoscopic and endoscopic operations. This is a unique idea and unique project transformed into clinical practice, which is promising to assist in laparoscopic training and inclusion of surgeon / endoscopist to "skilfulness" group on the evaluation of the effectiveness of movements of his hands (Tab. 2, Ref. 11).

5.
Bratisl Lek Listy ; 115(5): 307-10, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25174061

RESUMO

Breast angiosarcoma may occur de novo, or as a complication of radiation therapy, or chronic lymphedema secondary to axillary lymph node dissection for mammary carcinoma. Both primary and secondary angiosarcomas may present with bruise like skin discoloration, which may delay the diagnosis. Imaging findings are nonspecific. In case of high-grade tumours, MRI may be used effectively to determine lesion extent by showing rapid enhancement, nevertheless earliest possible diagnostics is crucial therefore any symptoms of angiosarcoma have to be carefully analysed. The case analysed here reports on results of 44-year old premenopausal woman who was treated for a T1N1M0 invasive ductal carcinoma. After a biopsy diagnosis of carcinoma, the patient underwent quadrantectomy with axillary lymph node dissection. She received partial 4 cycles of chemotherapy with adriamycin and cyclophosphamide, followed by radiation treatment. Thereafter, a standard postoperative radiotherapy was applied at our institution four months after chemotherapy (TD 46 Gy in 23 fractions followed by a 10 Gy electron boost to the tumour bed). Adjuvant chemotherapy was finished six months after operation, followed by tamoxifen. Follow up: no further complications were detected during regular check-ups. However, 12-years later, patient reported significant changes at breast region which was exposed to radiation during treatment of original tumour. In this article, we describe the clinical presentation, imaging and pathological findings of secondary angiosarcoma of the breast after radiotherapy (Fig. 2, Ref. 26).


Assuntos
Neoplasias da Mama/radioterapia , Carcinoma Ductal de Mama/radioterapia , Hemangiossarcoma/diagnóstico , Neoplasias Induzidas por Radiação/diagnóstico , Adulto , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Biópsia , Neoplasias da Mama/diagnóstico , Neoplasias da Mama/terapia , Carcinoma Ductal de Mama/terapia , Terapia Combinada/métodos , Feminino , Humanos , Excisão de Linfonodo , Imageamento por Ressonância Magnética , Invasividade Neoplásica
6.
Prague Med Rep ; 114(2): 57-71, 2013.
Artigo em Inglês | MEDLINE | ID: mdl-23777797

RESUMO

Peri-operative chemotherapy has been found to benefit patients with oesophageal and gastro-oesophageal junction adenocarcinoma. This study's aim was to evaluate the efficacy and tolerance of this treatment. The study included patients with carcinoma of the lower oesophagus and gastro-oesophageal junction in whom the disease was evaluated as potentially operable. Chemotherapy (CHT) consisted of three preoperative and three postoperative cycles of intravenous epirubicin and cisplatin on day 1 plus a continuous infusion of fluorouracil for 21 days (ECF) or oral capecitabine for 14 days (ECCap). Postoperative radio-chemotherapy (CRT) with fluorouracil or capecitabine after CHT was indicated in patients with two and more positive lymph nodes. Sixty-three patients started the treatment. Median follow-up was 32 months. Preoperative CHT was completed by 62 patients, 52 had surgery, 46 had radical resection, 25 patients had pN0 and 21 patient pN plus findings. Postoperative CHT was started in 39 (62%) patients and completed in 32 (51%). Ten (16%) patients had postoperative CRT. Adverse events of grade 3 and 4 were: neutropenia 17%, vomiting 8%, fatigue 5%, diarrhoea 3%. Reasons for omitting surgery in 11 (17%) patients were: progression in 7 patients, medically unfit in 3 patients, other in 1 patient. In the reporting period there were recurrences in 39 of all patients, in 7 locoregional only, in 10 distant plus locoregional, and in 19 distant metastases. Median survival was 24.1 months and 3-year survival rate was 42%. Peri-operative chemotherapy ECF/ECCap was feasible and well tolerated. Radical resection was performed in most patients.


Assuntos
Adenocarcinoma/tratamento farmacológico , Carcinoma de Células Escamosas/tratamento farmacológico , Neoplasias Esofágicas/tratamento farmacológico , Junção Esofagogástrica , Neoplasias Gástricas/tratamento farmacológico , Adenocarcinoma/cirurgia , Adulto , Idoso , Carcinoma de Células Escamosas/cirurgia , Terapia Combinada , Neoplasias Esofágicas/cirurgia , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Cuidados Pós-Operatórios , Cuidados Pré-Operatórios , Neoplasias Gástricas/cirurgia , Fatores de Tempo
7.
J BUON ; 17(2): 310-6, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-22740211

RESUMO

PURPOSE: To assess the impact of clinical and nutritional factors on overall survival (OS) and time to disease progression of oesophageal cancer patients treated with neoadjuvant chemoradiotherapy (CRT) and surgery. METHODS: We retrospectively studied and analysed several clinical and nutritional factors, such as performance status, weight changes before and during CRT, dysphagia, nutritional support, and serum albumin to see whether they exerted any impact on OS and time to disease progression. RESULTS: In 107 patients the average weight loss was 9.7% from the onset of signs of disease to the beginning of therapy and 3% during CRT. In univariate analysis, significant unfavorable impact on survival was proved for low performance status, severe dysphagia, need for nasogastric tube insertion, above-average weight loss before treatment, weight loss >5% during CRT, and serum albumin ≤ 35 g/l before or after CRT. Patients supported by oral nutritional supplements (ONS) had higher probability to attain full dosage of CRT and radical resection than did those obtaining dietary advice alone. In multivariate analysis, serum albumin level, nasogastric (NG) tube insertion and pretreatment body weight loss were independent prognostic factors for OS, while serum albumin level after CRT and NG tube insertion were prognosticators for time to progression. CONCLUSION: Serum albumin level can serve as a useful prognostic factor for the outcome of patients with oesophageal cancer treated with neoadjuvant CRT and surgery. Appropriate nutritional support of these patients increased the probability of attaining full dosage of CRT and radical disease resection.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Transtornos de Deglutição , Neoplasias Esofágicas/mortalidade , Esofagectomia , Estado Nutricional , Adolescente , Adulto , Idoso , Terapia Combinada , Progressão da Doença , Neoplasias Esofágicas/terapia , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Terapia Neoadjuvante , Cuidados Pré-Operatórios , Prognóstico , Dosagem Radioterapêutica , Estudos Retrospectivos , Taxa de Sobrevida , Fatores de Tempo , Adulto Jovem
8.
Klin Onkol ; 25(5): 364-9, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-23102198

RESUMO

BACKGROUND: Preoperative radiotherapy is considered to be standard treatment for locally advanced rectal cancer. The timing and dosage of radiotherapy with or without preoperative chemotherapy remain controversial issues. The objective of this study was to evaluate relevant clinical outcomes of two preoperative radiotherapy regimens - the short-course and -long-course radiotherapy with or without chemotherapy for patients with locally advanced rectal cancer. PATIENTS AND METHODS: 151 patients with stage II-III rectal cancer (103 males and 48 females) treated with preoperative radiotherapy between 01/1999 and 01/2008 were involved in this study. Analysed patterns included sphincter preservation, tumor down-staging, pathological complete remission, frequency of local recurrence, acute and late toxicity, peri-operative complications, overall survival and disease-free survival. RESULTS: Tumor downstaging has been achieved by long-course radiotherapy alone (46%) or in combination with chemotherapy (5-FU or capecitabine, 61%). Pathological complete remission has also been achieved only in the group with long-course radiotherapy (13%). Long-course radiotherapy combined with chemotherapy significantly decreased post treatment local recurrence rates (5% versus 15% in the group after long-course radiotherapy alone, p = 0.0132). Statistically significant difference was confirmed in overall survival of patients treated with long-course radiotherapy combined with chemotherapy vs long-course radiotherapy alone (p = 0.015). Significant difference between the rate of perioperative complications, of acute and late toxicity, 3 and 5 years disease-free survival of treated patients after short-course radiotherapy and long-course radiotherapy was not confirmed. CONCLUSION: Our findings provide convincing evidence that in comparison to preoperative short-course radiotherapy, the preoperative long-course radiotherapy in combination with chemotherapy is the most effective treatment modality for patients with operable locally advanced rectal cancer in terms downstaging and pathologic complete response. Increase in overall survival time as well as lower local recurrence rate makes this modality superior to other preoperative radiotherapy alternatives.


Assuntos
Radioterapia Adjuvante , Neoplasias Retais/radioterapia , Neoplasias Retais/cirurgia , Adulto , Idoso , Idoso de 80 Anos ou mais , Quimiorradioterapia Adjuvante , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Neoplasias Retais/mortalidade , Neoplasias Retais/patologia , Taxa de Sobrevida
9.
Klin Onkol ; 24(4): 281-6, 2011.
Artigo em Inglês | MEDLINE | ID: mdl-21905619

RESUMO

BACKGROUNDS: Patients with multiple myeloma have a high risk of venous thromboembolism (VTE), especially during the induction chemotherapy. The aim of our observational study was to determine the impact of prophylaxis with low molecular weight heparin (LMWH) on the incidence of thromboembolic complications. PATIENTS AND METHODS: We analyzed the incidence of thromboembolic events in 258 patients treated with induction chemotherapy containing vincristin, doxorubicin or idarubicin, and dexamethasone, followed by stimulation chemotherapy with cyclophosphamide and G-CSF, and high-dose chemotherapy with melphalan. Two groups of these patients were compared based on the practice of thromboprophylaxis. Patients in the first group (Control, n = 140) were either not treated or treated with a short duration of anticoagulation therapy while the patients in the second group (Prophylactic, n = 118) underwent standard prophylaxis with LMWH throughout the entire period of induction chemotherapy. A total of 102 patients were selected for a close monitoring of the prophylactic effect of different LMWH doses and to be compared to patients without treatment. RESULTS: Standard prophylaxis with LMWH significantly (p < 0.007) lowered a risk of VTE when compared to patients without such prophylaxis (3.4% versus 12.9%, respectively). Furthermore, analysis of the subgroup of 102 patients revealed that higher LMWH doses (> 70 IU/kg per day) achieved full prophylaxis in 28 patients while lower doses were less effective leading to DVT in 3 (7.7%) out of 39 patients. In contrast, VTE was diagnosed in 5 (14.3%) out of 35 patients without any LMWH prophylaxis. CONCLUSION: Prophylaxis with LMWH leads to a significant reduction of the risk of thromboembolic complications during the induction chemotherapy in patients suffering from MM. The prophylactic effect of LMWH is dose-dependent.


Assuntos
Antineoplásicos/efeitos adversos , Heparina de Baixo Peso Molecular/uso terapêutico , Mieloma Múltiplo/tratamento farmacológico , Trombose Venosa/prevenção & controle , Antineoplásicos/uso terapêutico , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Mieloma Múltiplo/complicações , Fatores de Risco , Trombose Venosa/etiologia
10.
Cesk Slov Oftalmol ; 77(3): 107­119, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34107689

RESUMO

This article provides a comprehensive view of the issue of dry eye. It emphasizes provisions of the Tear Film and Ocular Surface Society, discusses the new classification and definition of dry eye based on its pathophysiology, and emphasizes the correct diagnostic and therapeutic approaches, which appears in the form of algorithms. Dry eye is a multifactorial disease of the ocular surface characterized by a loss of homeostasis of the tear film, and accompanied by ocular symptoms, in which tear film instability and hyperosmolarity, ocular surface inflammation and damage, and neurosensory abnormalities play etiological roles. Dry eye disease is a dynamic and complex disease of the ocular surface and ocular adnexa with known risk factors. It is a disease with a cyclical character, in which the most important step is to find the etiological trigger, to restore homeostasis and break the vicious circle. The key elements in the diagnosis are increased osmolarity of the tear film and inflammation of the ocular surface, which are accompanied by ocular symptoms (discomfort, visual disturbance). Inflammation is not always associated with hyperemia and can be confirmed by several techniques and methods. However, in current clinical practice, there is still no "gold standard" and sufficient tests to diagnose inflammation of the ocular surface. The treatment of dry eye disease must be individualized, dynamic and optimized for each stage of the disease.


Assuntos
Síndromes do Olho Seco , Síndromes do Olho Seco/diagnóstico , Síndromes do Olho Seco/etiologia , Síndromes do Olho Seco/terapia , Olho , Humanos , Concentração Osmolar , Lágrimas , Visão Ocular
11.
Cesk Slov Oftalmol ; 77(2): 62-71, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33985335

RESUMO

BACKGROUND: The aim of the work is a discussion of amniotic membrane transplantation at the Eye Clinic of the University Hospital Brno and a retrospective evaluation of a group of patients for the period 2014-2019 who were treated for various indications. METHODS: Retrospective evaluation of the number and effectiveness of individual types of amniotic membrane in a group of patients after amniotic membrane transplantation (AMT) for various indications. A total of 134 patients were included in the study group, of which 68 were men and 66 were women. The median age was 70 years. The total number of amniotic membrane transplants performed during the selected six years was 139, with half the distribution using frozen (69 eyes) and lyophilized amniotic membrane (70 eyes). The AMT technique was chosen based on the initial finding and diagnosis. The type of amniotic membrane used (lyophilized vs. frozen) depended on the urgency of the procedure. RESULTS: The number of amniotic membrane transplantations was evaluated in a group of 134 patients (139 eyes) and their effectiveness in individual diagnoses was demonstrated. During the follow-up period, more transplantations of amniotic membranes were performed during hospitalization than in the outpatient department, both types of membranes (frozen and lyophilized). Amniotic membrane transplantation during hospitalization was performed in 89 eyes, in the outpatient mode in 50 eyes. Indications for amniotic membrane transplantation included microperforation and corneal perforation (30 eyes), non-healing corneal defects (21 eyes), descemetocele (19 eyes), neurotrophic defects (16 eyes), ablation of pterygium (12 eyes) and corneal lysis (11 eyes). eyes). Other conditions (conjunctival lesions, fornix reconstruction, burns, peripheral ulcerative keratitis, ocular cicatricial pemphigoid and keratectomy) were represented in smaller numbers. Despite the very diverse group of indications and the advanced age of the patients, a very good efficacy of the performed amniotic membrane transplantations was found. Some patients died during the follow-up period, so the limitation of work is short and unequal follow-up period. CONCLUSION: The success of the procedure depends not only on the correct timing, indication and technique of transplantation, but also on patient compliance and well-functioning cooperation of regional ophthalmologists.


Assuntos
Doenças da Túnica Conjuntiva , Doenças da Córnea , Oftalmopatias , Idoso , Âmnio/transplante , Doenças da Córnea/cirurgia , Feminino , Hospitais , Humanos , Masculino , Estudos Retrospectivos
12.
Klin Onkol ; 34(2): 113-119, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33906359

RESUMO

BACKGROUND: Preoperative chemoradiotherapy (CRT) and perioperative chemotherapy (CHMT) are a standard of care for distal esophageal and gastroesophageal junction adenocarcinomas. PET/CT using 18F-fluorodeoxyglucose (18F-FDG-PET/CT) is one of the basic staging examinations with a certain prognostic significance and has recently been studied for the possibility of showing prognostic or predictive results suitable for the individualization of treatment strategy. PURPOSE: The aim of this review is to map the role of 18-FDG-PET/CT in predicting the response to CHMT and CRT, which could be a starting point for personalized treatment. CONTENT: The change in metabolic activity in the maximum standardized uptake value is most often used to quantify the treatment response; total lesion glycolysis is a volumetric parameter. A method for standardizing measurements was offered in the PERCIST system. Several studies have been published showing that the decrease in metabolic activity after chemotherapy correlates with a surrogate measure of the treatment outcome, which is the degree of tumor regression in the resected tissue, but also with survival or time to progression. The cut-off value separating sensitive and resistant tumors varied from 33 to 78%, the measurement took place either at the end of neoadjuvant treatment or „early“, about 2 weeks after the first cycle of CHMT. However, this value has not yet been validated and the parameters of sensitivity, specificity and negative and positive predictive values for the prediction of treatment outcome fluctuated significantly. In the case of preoperative CRT, PET/CT could not predict the complete response to the treatment with satisfactory accuracy. Studies using early metabolic response to change the treatment strategies in non-responders have not yet shown whether changing the treatment in patients without an early metabolic response to CHMT will improve survival. In the case of randomization, a standard arm with a continuation of the original CHMT was never used. CONCLUSION: Evaluation of an early PET-based response has the potential to modify the treatment in patients who have not demonstrated an early response to CHMT. However, this is not an approach suitable for routine practice outside of clinical trials. So far, it seems possible to use an early metabolic response for small, exploratory studies evaluating new agents and their combinations in the preoperative treatment of localized esophageal cancer or gastroesophageal junction cancer.


Assuntos
Adenocarcinoma/diagnóstico por imagem , Neoplasias Esofágicas/diagnóstico por imagem , Junção Esofagogástrica/diagnóstico por imagem , Fluordesoxiglucose F18 , Tomografia por Emissão de Pósitrons combinada à Tomografia Computadorizada , Adenocarcinoma/terapia , Quimiorradioterapia , Neoplasias Esofágicas/terapia , Junção Esofagogástrica/patologia , Humanos
13.
Neoplasma ; 57(1): 8-14, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-19895166

RESUMO

UNLABELLED: We analyzed proliferative index of myeloma plasmocytes (PC-PI) in acohort of 217 patients with multiple myeloma (MM) treated with conventional chemotherapy and biological agents, thalidomide and bortezomib. In the whole group was adifference between overall survival (OS) favoring patients with PC-PI ven after 40 months (median overall survival 25 vs 10months, p= 0.015), whereas in the group treated with thalidomide and bortezomib was no difference, with medians over 39 months. Even patients with low PC-PI profited from the treatment with novel drugs. Presented results suggest that the treatment of MM with novel agents overcomes the prognostic significance of PC-PI and should be used in all MM patients. KEYWORDS: myeloma -prognostication -proliferative index -biological therapy.


Assuntos
Antineoplásicos/uso terapêutico , Ácidos Borônicos/uso terapêutico , Mieloma Múltiplo/tratamento farmacológico , Pirazinas/uso terapêutico , Talidomida/uso terapêutico , Adulto , Idoso , Idoso de 80 Anos ou mais , Bortezomib , Proliferação de Células , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Mieloma Múltiplo/mortalidade , Mieloma Múltiplo/patologia , Plasmócitos/patologia , Prognóstico
14.
Neoplasma ; 57(3): 215-21, 2010.
Artigo em Inglês | MEDLINE | ID: mdl-20353271

RESUMO

UNLABELLED: Telomere length was evaluated by terminal repeat fragment method in 66 previously untreated patients with B-chronic lymphocytic leukemia (B-CLL) to ascertain whether telomere shortening was associated with genomic aberrations, immunoglobulin variable heavy chain (IgVH) mutational status, CD38 and ZAP-70 expression, and telomerase activity. Chromosomal aberrations were present in peripheral blood cells of 73% patients (48/66), no difference in telomere length between patients with good and intermediate prognosis according to cytogenetics was found. Association between telomere length and IgVH mutational status, ZAP-70 and CD38 expression was proved as significantly shorter telomeres in patients with unmutated IgVH status (p=0.01) and ZAP-70 positivity (p=0.01) and CD38 positivity (p=0.05) were detected. Telomerase activity was positive in 11 patients out of 21 examined, correlation between telomere length and telomerase activity was found (p=0.05). Telomere length and telomerase activity in combination with other prognostic parameters complete the risk profile of B-CLL patients and might serve for an easy decision on optimal treatment strategy. KEYWORDS: B-chronic lymphocytic leukemia, telomere length, telomerase activity, chromosomal aberrations, prognosis.


Assuntos
Aberrações Cromossômicas , Leucemia Linfocítica Crônica de Células B/genética , Telômero , ADP-Ribosil Ciclase 1/análise , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Cadeias Pesadas de Imunoglobulinas/genética , Região Variável de Imunoglobulina/genética , Imunofenotipagem , Leucemia Linfocítica Crônica de Células B/imunologia , Leucemia Linfocítica Crônica de Células B/metabolismo , Masculino , Pessoa de Meia-Idade , Mutação , Proteína-Tirosina Quinase ZAP-70/análise
15.
Dis Esophagus ; 23(2): 160-7, 2010 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-19515190

RESUMO

Combined modality treatment for esophageal carcinoma seems to improve survival over surgery alone. Different combinations of cytotoxic drugs have been studied to improve antitumor efficacy and limit the toxicity of chemoradiotherapy (CRT) with inconsistent results. We present a prospective study of neoadjuvant CRT with or without paclitaxel in chemotherapy schedule. One hundred seven patients (93 males, 14 females), median age 59 years (range 44-76), with operable esophageal cancer were enrolled. They received the following neoadjuvant therapy: Carboplatin, area under curve (AUC) = 6, intravenously on days 1 and 22, 5-fluorouracil (5-FU), 200 mg/m(2)/day, continuous infusion on days 1 to 42, radiation therapy 45 grays/25fractions/5 weeks beginning on day 1. Forty-four patients (41%) were furthermore non-randomly assigned to paclitaxel 200 mg/m(2)/3 h intravenously on days 1 and 22. Nutritional support from the beginning of the treatment was offered to all patients. Surgery was done within 4-8 weeks after completion of CRT, if feasible. All patients were evaluated for grade 3 plus 4 toxicities: leukopenia (28%), neutropenia (30%), anemia (6%), thrombocytopenia (31%), febrile neutropenia (6%), esophagitis (24%), nausea and vomiting (7%), pneumotoxicity (8%). Seventy-eight patients (73%) had surgery and 63 of them were completely resected. Twenty-two patients (20%) achieved pathological complete remission, and additional 20 (19%) had node-negative and esophageal wall-positive residual disease. There were 10 surgery-related deaths, mostly due to pulmonary insufficiency. Twenty-nine patients were not resected, 15 for early progression, 14 for medical reasons or patient refusal. After a median follow-up of 52 months (range 27-80), median survival of 18.0 months and 1-, 2-, 3- and 5-year survival of 56.7, 37.5, 27.0 and 21% was observed in the whole group of 107 patients. Addition of paclitaxel to carboplatin and continual infusion of FU significantly increased hematologic and non-hematologic toxicity, but treatment results as overall survival or time to progression did not differ significantly in groups with and without paclitaxel. Patients achieving pathological complete remission or nodes negativity after neoadjuvant therapy had favorable survival prognosis, whereas long-term prognosis of node positive patients was poor. Distant metastases prevailed as a cause of the treatment failure. Factors significant for survival prognosis in multivariate analysis were postoperative node negativity, performance status, and grade of dysphagia. Addition of paclitaxel to carboplatin and continual FU significantly increased hematologic and non-hematologic toxicity without influencing efficacy of the treatment. This study confirmed improved prognosis of patients after achieving negativity of nodes. Distant metastases prevailed as cause of the treatment failure. Prospectively, it is important to look for a therapeutic combination with better systemic effect.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Carboplatina/administração & dosagem , Neoplasias Esofágicas/cirurgia , Fluoruracila/administração & dosagem , Terapia Neoadjuvante , Paclitaxel/administração & dosagem , Adulto , Idoso , Antimetabólitos Antineoplásicos/administração & dosagem , Antineoplásicos/administração & dosagem , Antineoplásicos Fitogênicos/administração & dosagem , Carcinoma de Células Escamosas/tratamento farmacológico , Carcinoma de Células Escamosas/radioterapia , Carcinoma de Células Escamosas/cirurgia , Quimioterapia Adjuvante , Fracionamento da Dose de Radiação , Neoplasias Esofágicas/tratamento farmacológico , Neoplasias Esofágicas/radioterapia , Esofagite/etiologia , Feminino , Seguimentos , Humanos , Leucopenia/etiologia , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Neutropenia/etiologia , Estudos Prospectivos , Radioterapia Adjuvante , Indução de Remissão , Taxa de Sobrevida , Trombocitopenia/etiologia , Resultado do Tratamento
17.
Cas Lek Cesk ; 148(9): 416-23, 2009.
Artigo em Tcheco | MEDLINE | ID: mdl-19899730

RESUMO

BACKGROUND: Lung cancer (LC) incidence in men in the Czech Republic has been declining since 1995, in women it grows up continually. To analyse the characteristics of recent set of patients (pts) and contribution of their symptoms for diagnostic, treatment and prognosis we carried on the retrospective study on patients from 1st Pulmonary department from 2004-2007. METHODS AND RESULTS: Men:women ratio in the set of 353 pts was 2:1. The frequency of symptoms at the time of diagnosis were: cough 69%, dyspnoe 54%, loss of weight 49%, expectoration 39%, pain on the chest 37%, haemoptysis 17.7%, fever 16%, vena cava superior syndrome 3.7%. Smokers fell in to the disease in significantly younger age than nonsmokers, 63 vs. 73 years. 40% of pts with LC suffer from COPD, more frequently have had squamous type of cancer. 78% of the set was morphologically verified, most frequent types of cancer were squamous type (22.1%) followed by adenocarcinoma, 21.2%. Surgical therapy underwent 18.1% of the whole set. We look consequently for correlation between symptoms and other data of the pts. The pts with abuse of alcohol beverage fell in to the disease in a younger age. The pts with central tumor suffer from stronger cough more frequently, at bronchoscopy had more often direct tumor changes. The pts with IV. TNM stage of LC more frequently suffer from fever and pain. Significantly fewer pts with dyspnoe, loss of weight and lower FEV1 underwent surgical resection, FEV1 was lower in pts with central than with peripheral type of tumor. In pts with direct bronchoscopical tumor changes were found more frequently haemoptysis, broader spectrum of symptoms, lower FVC and FEV1. Dyspnoe correlated with PaO2 but not with PaCO2. CRP was lower in pts with peripheral type of LC, higher in pts with small cell LC (SCLC). Occurrence of haemoptysis did not correlate with number of smoked cigarettes. Conclusions. In conclusion we proofed that proper taking of history case may accelerate and improve the diagnostic process.


Assuntos
Neoplasias Pulmonares/diagnóstico , Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Neoplasias Pulmonares/etiologia , Neoplasias Pulmonares/patologia , Masculino , Pessoa de Meia-Idade , Fatores de Risco , Fumar/efeitos adversos
18.
Cesk Slov Oftalmol ; 75(1): 14-24, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31382752

RESUMO

BACKGROUND: Shear wave elastography (SWE) is an imaging modality using advantage of ultrasound to detect differences of elastic properties (mechanical rigidity) of tissues. SWE increasingly develops across medical specialities and is already used in hematology, urology and oncology. In the field of ophthalmology using SWE to evaluate corneal mechanical properties, peripapillary biomechanical qualities in glaucoma patients several papers were published Also SWE ultrasound mechanical specificity safety studies were published. Aim of this work is to review SWE technique and its potentional using during examination in patients with endocrine orbitopathy (EO). In practical part of this work is evaluated the elasticity of oculomotor rectus muscles in healthy population, in patients with EO in early stage of disease (oculomotor muscles oedema) and in patients with EO in terminal stage of this disease (oculomotor muscles fibrosis) is determinate. Also possibility of using SWE (in comparison with standard ultrasound examination) for measuring thickness of oculomotor muscles is evaluated. METHODS: There were 60 eyes in 30 patients with EO examined and the elasticity of oculomotor muscles was determined. Results were compared with values of elasticity in 40 eyes in healthy population of 20 people. All measurements were performed with ultrasonic system Aixplorer of SuperSonic manufacturer in standardized terms and been undertaken by the same performer. Each value was measured several times to reduce measurement errors. RESULTS: Oculomotor rectus muscle elasticity values in healthy population measured by using SWE were as follows: musculus rectus superior (MRS) 19.7 ± 3.2 kPa, musculus rectus medialis (MRM) 20.5 ± 3.6 kPa, musculus rectus inferior (MRI) 20.4 ± 3.1 kPa and musculus rectus temporalis (MRT) 20.2 ± 1.7 kPa. As statistical analysis shows, there is no significant difference between muscles (ANOVA test p > 0.05); overall elasticity of oculomotor muscles in healthy population is 20.3 ± 3.0 kPa. Elasticity of muscles in group of EO patients in oedema stage and EO patients in fibrosis stage is 18.4 ± 3.2 kPa and 34.6 ± 7.5 kPa respectively. Both values show statistical significance in the comparison with healthy population (p.


Assuntos
Técnicas de Imagem por Elasticidade , Músculos Oculomotores , Elasticidade , Humanos , Músculos Oculomotores/diagnóstico por imagem , Músculos Oculomotores/fisiopatologia , Ultrassonografia
19.
J Fr Ophtalmol ; 42(1): 73-80, 2019 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-30630638

RESUMO

Shear wave elastography (SWE) is a non-invasive diagnostic imaging technique that maps the elastic properties of tissues. This modality is being increasingly developed in other areas of medicine, offering a new type of high-quality ultrasound examination, since it increases specificity and thus improves diagnostic accuracy. This method is similar to manual palpation, showing the elastic properties of biological tissues and providing a kind of reconstruction of the internal structure of soft tissues based on measurement of the response to tissue compression. In ophthalmology, it already appears promising for diagnosis and in evaluating changes in extraocular muscles and orbital tissues in patients with endocrine orbitopathy. Shear wave elastography offers three main innovations: the quantitative aspect, dimensional resolution, and real-time imaging ability. Determination of the utilization rate of this method and its inclusion in the diagnosis of endocrine orbitopathy is still a question and the object of clinical studies currently under way.


Assuntos
Técnicas de Diagnóstico Oftalmológico , Técnicas de Imagem por Elasticidade/métodos , Módulo de Elasticidade , Doenças do Sistema Endócrino/complicações , Doenças do Sistema Endócrino/diagnóstico , Oftalmopatias/diagnóstico , Oftalmopatias/etiologia , Humanos , Sensibilidade e Especificidade
20.
Neoplasma ; 55(4): 345-9, 2008.
Artigo em Inglês | MEDLINE | ID: mdl-18505347

RESUMO

Thalidomide has been estimated as a useful drug in therapy of refractory or relapsed multiple myeloma. Recently, several studies have shown very good results in therapy combination of thalidomide, cyclophosphamide and dexamethasone, but still high doses of thalidomide associated with serious adverse events have been used. In our study, we performed low-dose thalidomide regimens; the aim of this study was to verify the effect and to assess their toxicity. For younger patients up to 65 years we used a "CTD-junior" regimen, consisting of oral thalidomide 200 mg daily, pulsed intravenous cyclophosphamide 800 mg on day 1 and pulsed oral dexamethasone 40 mg on days 1-4 and 12-15, for every three weeks. For patients over 65 years, the "CTDsenior" regimen was used, with oral thalidomide 50-100 mg daily (according to tolerability), oral cyclophosphamide 50 mg daily and pulsed dexamethasone 20 mg on days 1-4 and 15-18, for every four weeks. From the group of 97 patients with progressive form of multiple myeloma or with resistance to conventional chemotherapy, 85 patients were evaluated. According to the EBMT criteria, we observed in 8% complete remission (CR), in 50% partial response (PR) and in 22% minimal response (MR). Ten patients (12%) were stabilized and seven patients (8%) progressed. Toxicity of both regimens was mild and well manageable, when weakness, obstipation, neuropathy of lower extremities, glycoregulation worsening and mild leucopenia occurred most often. These results showed that low doses of thalidomide are still effective, when combined with other drugs. Both CTD regimens are safe also for patients with advanced and heavily pretreated multiple myeloma.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Mieloma Múltiplo/tratamento farmacológico , Talidomida/administração & dosagem , Idoso , Ciclofosfamida/administração & dosagem , Dexametasona/administração & dosagem , Avaliação de Medicamentos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Recidiva , Terapia de Salvação , Talidomida/efeitos adversos , Resultado do Tratamento
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA