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1.
Clin Transl Oncol ; 11(1): 60-2, 2009 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-19155206

RESUMO

Glucagonoma is an uncommon disease, a neuroendocrine tumour that develops from glucagon-producing pancreatic cells. They are usually slow-growing, but generally advanced at diagnosis, and metastatic disease is virtually incurable. Liver is the most common site of metastatic disease. We present the case of a 48-year-old man with a glucagonoma being diagnosed from a pulmonary mass. This case had no liver affection in the whole evolution of the disease, and showed a particularly aggressive course, with very little response to all therapies administered, and a survival from diagnosis of just 16 months.


Assuntos
Glucagonoma/secundário , Neoplasias Pulmonares/secundário , Neoplasias Pancreáticas/patologia , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Diagnóstico Diferencial , Evolução Fatal , Glucagonoma/fisiopatologia , Glucagonoma/terapia , Humanos , Neoplasias Pulmonares/terapia , Masculino , Pessoa de Meia-Idade , Neoplasias Pancreáticas/fisiopatologia , Neoplasias Pancreáticas/terapia , Tomografia Computadorizada por Raios X
2.
Clin Transl Oncol ; 10(6): 351-8, 2008 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-18558582

RESUMO

INTRODUCTION: Asthenia is the most prevalent symptom in oncological patients but it is underestimated by the majority of healthcare professionals. The aim of the present study is to estimate the prevalence of tumour-related asthenia in the Spanish population, while defining the associated factors. METHODS: An epidemiological, multicentre, cross-sectional study was conducted in oncology services from Spain, including 712 cancer patients (58.4+/-13.5 years). RESULTS: 42.5% patients showed asthenia. This prevalence appeared to be tumour-related (p<0.05) and increased among patients with a more advanced stage of disease or with a worsening of performance status (p<0.001). The prevalence of asthenia increased in the presence of the following factors: chemotherapy (in the past: 52.1% vs. 31.0%; at the time of the study: 46.1% vs. 38.2%), symptomatic treatment (in the past: 60.4% vs. 39.8%; at the time of the study: 61.3% vs. 38.6%), present interferon treatment (100%), anaemia (59.7% vs. 31.3%), dehydration/waterelectrolyte imbalance (58.3% vs. 41.6%), respiratory failure (61.4% vs. 39.7%), liver disease (59.5% vs. 41.3%), malnutrition (76.1% vs. 38.7%), pain (57.7% vs. 27.0%), anxiety (56.1% vs. 38.6%), depression (57.9% vs. 40.0%) and sleep disturbances (51.1% vs. 39.4%). A multivariate logistic regression showed that a model including performance status, patient circumstance, chemotherapy, anaemia, pain and anxiety correctly diagnosed asthenia in 70.9% of cases. CONCLUSIONS: The physiopathology of tumour-related asthenia remains relatively unknown, despite its high prevalence and considerable quality of life impact. Determining factors related to asthenia in clinical practice can favour the use of concrete treatments and improve the conditions of cancer patients.


Assuntos
Astenia/epidemiologia , Astenia/etiologia , Neoplasias/complicações , Antineoplásicos/efeitos adversos , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Neoplasias/tratamento farmacológico , Neoplasias/patologia , Prevalência , Qualidade de Vida , Espanha/epidemiologia
3.
Clin Transl Oncol ; 10(5): 288-93, 2008 May.
Artigo em Inglês | MEDLINE | ID: mdl-18490246

RESUMO

INTRODUCTION: Despite the high prevalence of asthenia in cancer patients, around 50-75%, and its impact on quality of life, it continues to be a difficult symptom to assess and manage. This study defines the extent of perception and diagnosis of asthenia associated with cancer among Spanish oncologists. METHODS: A descriptive, observational study conducted in Spain based on a five-part structured questionnaire available to participants through a private website. RESULTS: The 100 oncologists surveyed, most in the public healthcare setting, diagnose asthenia in 58-70% of cases. They consider old age (56.5%) and advanced-stage disease (94.2%) as factors associated with the occurrence of asthenia, which is also common in, particularly, tumours, such as pancreatic cancer (30.4%), and some therapies, notably chemotherapy alone (67%) or combined with radiotherapy (96%). Despite its adequate detection, physicians rarely ask their patients about asthenia, use instruments for its evaluation or assess its impact on quality of life. Likewise, only 40% of all patients are treated, although therapeutic intervention, a multidisciplinary approach combining drug and non-drug treatments and managing a variety of causative factors, can be considered adequate. Finally, 91.5% of those surveyed do not have action guidelines for asthenia in their hospitals. CONCLUSIONS: Even when asthenia is widely diagnosed in cancer patients in Spain, there is a laxity in its assessment and treatment. Increased awareness among healthcare professionals of its impact and relevance is therefore required, as well as adequate protocols for its systematic detection and management within the routine assessment and treatment of cancer patients.


Assuntos
Astenia/epidemiologia , Conhecimentos, Atitudes e Prática em Saúde , Médicos/estatística & dados numéricos , Astenia/etiologia , Astenia/terapia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Neoplasias/complicações , Percepção , Inquéritos e Questionários
4.
Clin Transl Oncol ; 10(1): 6-13, 2008 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-18208787

RESUMO

Signalling pathways that emerge from EGFR activation are critical in colon cancer (CC) biology. Its targeting with specific drugs has opened a new window in the treatment of this disease. In this regard, monoclonal antibodies (mAb) have evidenced a high degree of efficiency opposed to the uselessness of tyrosine-kinase inhibitors. Cetuximab is the mAb that has evidenced most activity in CC. After its initial approval as an irinotecan-resistance reversal agent, cetuximab has demonstrated its efficiency from the first line to heavily pretreated patients. In the first line, its addition may increase response rate to chemotherapy, improving liver metastases resection rate. Another promising approach has been suggested from combination schedules with bevacizumab. Panitumumab has been recently approved for CC. Although there is limited clinical experience, the latest data have confirmed its activity in heavily pretreated patients resulting in a clinical benefit vs. best support care. In spite of the clinical benefits, adverse events and the high sanitary cost derived from these drugs force the selection of patients with the highest probability of benefit. At the moment, when EGFR expression evidenced by immunohistochemistry has no value, skin toxicity and, fundamentally, K-Ras mutations may hint at critical information for confirmatory prospective studies.


Assuntos
Neoplasias do Colo/tratamento farmacológico , Receptores ErbB/antagonistas & inibidores , Animais , Anticorpos Monoclonais/uso terapêutico , Anticorpos Monoclonais Humanizados , Cetuximab , Neoplasias do Colo/etiologia , Neoplasias do Colo/genética , Receptores ErbB/análise , Receptores ErbB/genética , Receptores ErbB/fisiologia , Amplificação de Genes , Genes ras , Humanos , Hibridização in Situ Fluorescente , Mutação , Panitumumabe , Inibidores de Proteínas Quinases/uso terapêutico
5.
Clin Transl Oncol ; 10(1): 35-46, 2008 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-18208791

RESUMO

Although rare, cardiotoxicity is a significant complication of cancer treatment. The incidence and severity of cardiovascular side effects are dependent on the type of drugs used, dose and schedule employed, and age of patients, as well as the presence of coexisting cardiac diseases and previous mediastinal irradiation. Classically, anthracyclines are among one of the most active agents in oncology, but their use is often hampered by their cumulative dose-limiting cardiotoxicity. In the past decade, combination therapy with new drugs such as taxanes or anti- EGFR, and Her-2 therapy as a single agent have also resulted in unexpected cardiotoxicity. Cardiac damage can be secondary to an alteration of cardiac rhythm, changes in blood pressure and ischaemia, and can also alter the ability of the heart to contract and/or relax. The clinical spectrum of these toxicities can range from subclinical abnormalities to being catastrophic, life-threatening and sometimes fatal. Knowledge of this toxicity can aid clinicians to choose the optimal and least toxic regimen suitable for an individual patient. In this work we present an exhaustive review of the cardiovascular side effects associated to new anticancer drugs, from new formulations of anthracyclines to tyrosine kinase inhibitors and monoclonal antibodies.


Assuntos
Antineoplásicos/efeitos adversos , Cardiopatias/induzido quimicamente , Inibidores da Angiogênese/efeitos adversos , Antraciclinas/efeitos adversos , Inibidores da Aromatase/efeitos adversos , Capecitabina , Desoxicitidina/efeitos adversos , Desoxicitidina/análogos & derivados , Receptores ErbB/antagonistas & inibidores , Fluoruracila/efeitos adversos , Fluoruracila/análogos & derivados , Humanos , Compostos Organoplatínicos/efeitos adversos , Oxaliplatina , Receptor ErbB-2/antagonistas & inibidores , Taxoides/efeitos adversos
6.
Clin Transl Oncol ; 9(11): 742-3, 2007 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-18055330

RESUMO

Cerebral metastases from colorectal cancer occur in 8% of cases. Diagnosis is usually made when primary disease and widespread metastases are already known. However, the detection of brain metastases as the first sign of colorectal carcinoma without any liver and/or lung involvement is extremely rare. Central nervous system metastases are more commonly seen in rectal cancer and often occur concurrently with lung metastasis. We report a case of a patient with brain metastases as the first clinical manifestation of an adenocarcinoma of caecum without any other organ involvement.


Assuntos
Adenocarcinoma/secundário , Neoplasias Encefálicas/secundário , Neoplasias Colorretais/patologia , Adenocarcinoma/diagnóstico , Idoso , Idoso de 80 Anos ou mais , Neoplasias Encefálicas/diagnóstico , Humanos , Masculino
7.
Clin Transl Oncol ; 9(9): 549-54, 2007 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-17921101

RESUMO

Colorectal cancer (CRC) is the second leading cause of cancer death in Western countries. CRC treatment is based on the employment of three chemotherapeutic drugs, including 5-fluorouracil, oxaliplatin and irinotecan, and the use of recently incorporated targeted agents directed to vascular endothelial growth factor (VEGF) and epidermal growth factor receptor (EGFR). The approval of these biologicals and of others to come holds great promise for the improvement of patient outcome. The molecular bases for this lethal disease have been extensively investigated, laying the foundations for a rational and customised treatment approach, expanding the therapeutic index of current drugs and easing the incorporation of new molecules. Individual markers have been mainly investigated based on drug targets and metabolism. Also, the increasing availability of highthroughput technologies has prompted the opportunity for blind studies capable of screening new markers and of identifying the specific oncogenic pathways responsible for drug resistance in a given patient. An updated review of the field is presented in this article.


Assuntos
Biomarcadores Tumorais/metabolismo , Neoplasias Colorretais/tratamento farmacológico , Antineoplásicos/uso terapêutico , Neoplasias Colorretais/genética , Neoplasias Colorretais/metabolismo , Receptores ErbB/antagonistas & inibidores , Humanos , Modelos Biológicos , Fator A de Crescimento do Endotélio Vascular/antagonistas & inibidores
8.
Clin Transl Oncol ; 9(6): 364-8, 2007 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-17594950

RESUMO

Lung cancer is a frequent cause of cancer-related deaths in the world. There is no valid screening process and this limits its detection to the late stages, with consequently high mortality rates. Volatile organic compounds (VOC) are chemical compounds (mainly the products of cell catabolism) found as gases in the human breath. Different methods have been developed to analyse VOCs and to compare them in healthy subjects and lung cancer patients. In this review, we summarise the different techniques used to analyse VOC. Many reports have been published with promising results similar to those achieved with accepted screening methods such as mammography. These methods show good perspectives on lung cancer screening.


Assuntos
Testes Respiratórios/métodos , Neoplasias Pulmonares/diagnóstico , Humanos , Neoplasias Pulmonares/metabolismo
9.
Clin Transl Oncol ; 9(5): 298-307, 2007 May.
Artigo em Inglês | MEDLINE | ID: mdl-17525040

RESUMO

Oxycodone is a semi-synthetic opioid with an agonist activity on mu, kappa and delta receptors. Equivalence with regard to morphine is 1:2. Its effect commences one hour after administration and lasts for 12 h in the controlled-release formulation. Plasma halflife is 3-5 h (half that of morphine) and stable plasma levels are reached within 24 h (2-7 days for morphine). Oral bioavailability ranges from 60 to 87%, and plasma protein binding is 45%. Most of the drug is metabolised in the liver, while the rest is excreted by the kidney along with its metabolites. The two main metabolites are oxymorphone--which is also a very potent analgesic--and noroxycodone, a weak analgesic. Oxycodone metabolism is more predictable than that of morphine, and therefore titration is easier. Oxycodone has the same mechanism of action as other opioids: binding to a receptor, inhibition of adenylyl-cyclase and hyperpolarisation of neurons, and decreased excitability. These mechanisms also play a part in the onset of dependence and tolerance. The clinical efficacy of oxycodone is similar to that of morphine, with a ratio of 1/1.5-2 for the treatment of cancer pain. Long-term administration may be associated with less toxicity in comparison with morphine. In the future, both opioids could be used simultaneously at low doses to reduce toxicity. It does not appear that there are any differences between immediate and slow-release oxycodone, except their half-life is 3-4 h, and 12 h, respectively. In Spain, controlled-release oxycodone (OxyContin) is marketed as 10-, 20-, 40- or 80-mg tablets for b.i.d. administration. Tablets must be taken whole and must not be broken, chewed or crushed. There is no food interference. The initial dose is 10 mg b.i.d. for new treatments and no dose reduction is needed in the elderly or in cases of moderate hepatic or renal failure. Immediate-release oxycodone (OxyNorm) is also available in capsules and oral solution. Side effects are those common to opioids: mainly nausea, constipation and drowsiness. Vomiting, pruritus and dizziness are less common. The intensity of these side effects tends to decrease over the course of time. Oxycodone causes somewhat less nausea, hallucinations and pruritus than morphine.


Assuntos
Analgésicos Opioides/uso terapêutico , Oxicodona/uso terapêutico , Dor/tratamento farmacológico , Analgésicos Opioides/farmacologia , Humanos , Oxicodona/farmacologia
10.
Clin Transl Oncol ; 8(7): 525-32, 2006 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-16870534

RESUMO

BACKGROUND: Pain and suffering are not synonymous terms. The concept of suffering is wider than just physical pain. People can suffer for multiple causes, pain among them, but it is not the only reason since <>. If our main objective is the achievement of the well-being and the relief of pain, it will be necessary, according to Lazarus, Folkman, Chapman, Gravin, Bayés and Labrador, to reduce or eliminate the physical (cancer, pain and so on) and psychosocial harm (loneliness, culpability, etc.) perceived like a threat and to increase the perception of control about this situation. AIMS: The main objectives of our work were: First: to evaluate the efficacy of a tool that allows the identification of the symptoms perceived by the patient as a threat in order to reduce or suppress them and empower their resources at the same time; and secondly to evaluate the incidence of pain in the suffering. MATERIALS AND METHODS: Our tool includes the following groups of variables: subjective perception of the time course, emotional aspects, concerns and confrontation strategies, perception of adaptation and sense of life, perceived support and pain. This tool has been tested in 73 oncologic patients, 31 men and 42 women, mean aged 55, 41 (SD = 14, 54) visited at the Medical Oncology Service of La Paz Hospital. RESULTS: Mainly, people who refers great suffering are those with more pain (p < 0.05); while patients with less suffering and higher well-being are those that use strategies to face their situation (p < 0.05). Our tool reduces perceived threats and that reflects the need for a good control of pain and at the same time to empower the resources to relieve the suffering as much as possible. CONCLUSION: The referred tool seems to be effective in order to easy the intervention to relieve the suffering.


Assuntos
Adaptação Psicológica , Neoplasias/psicologia , Manejo da Dor , Cuidados Paliativos , Estresse Psicológico/terapia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Neoplasias/complicações , Neoplasias/terapia , Dor/etiologia , Estresse Psicológico/etiologia , Inquéritos e Questionários
11.
Clin Transl Oncol ; 7(6): 239-43, 2005 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-16131446

RESUMO

INTRODUCTION: A number of findings suggest that cyclooxygenase-2 (COX-2) is overexpressed in breast tumours. However, there is a lack of consensus in the literature regarding the pattern of expression of this protein in invasive breast ductal carcinoma and in the adjacent non-tumour ductal epithelium. This study compares the expression of COX-2 mRNA and protein in breast ductal carcinoma relative to non-tumour breast tissue. MATERIAL AND METHODS: We analysed the expression of COX-2 mRNA by quantitative PCR, and COX-2 protein by immunohistochemistry in invasive ductal carcinoma as well as in non-tumour adjacent ductal epithelium from 34 breast biopsies diagnosed as being invasive ductal carcinoma. As control, we analysed expression of COX-2 protein by immunohistochemistry in surgically-resected benign breast lesions. RESULTS: Our results show that COX-2 mRNA and protein are overexpressed in non-tumour ductal epithelium compared with invasive ductal carcinoma. However, the pattern of the protein expression is different in tumour and non-tumour tissue: COX-2 protein is expressed predominantly in the membrane of the non-tumour ductal epithelium (including in benign breast lesions) while, in invasive ductal carcinoma cells, it is localised in the cytoplasm. CONCLUSIONS: The non-tumour ductal epithelium adjacent to invasive ductal carcinoma shows a higher COX-2 expression than does the invasive ductal carcinoma. However, the different localisation of the immunohistochemically-detected protein suggests a possible post-translational regulation of the protein.


Assuntos
Neoplasias da Mama/metabolismo , Mama/metabolismo , Carcinoma Ductal de Mama/metabolismo , Adulto , Idoso , Mama/patologia , Neoplasias da Mama/patologia , Carcinoma Ductal de Mama/patologia , Epitélio/metabolismo , Epitélio/patologia , Feminino , Humanos , Imuno-Histoquímica , Pessoa de Meia-Idade , Reação em Cadeia da Polimerase , RNA Mensageiro/análise
12.
Barcelona; Doyma; 1999. 102 p. ilus, tab.
Monografia em Espanhol | Sec. Munic. Saúde SP, HSPM-Acervo | ID: sms-5870
13.
15.
Rev. Inst. Nac. Cancerol. (Méx.) ; 34(1): 515-22, ene.-mar. 1988. ilus, tab
Artigo em Espanhol | LILACS | ID: lil-103944

RESUMO

En este trabajo se ha comprobado la validez del índice pronóstico de la Enfermedad de Hodgkin calculado en 1983. La heterogeneidad de la serie ha sido una característica acusada, en cuanto a la procedencia de los enfermos y los tipos de tratamientos aplicados. Con ampliar la serie se ha pretendido aumentar su representatividad para generalizar el valor de los resultados. En este índice se considera la presencia de 13 factores implicados en la evolución postremisión completa de los pacientes con EH. Se asignó 1 punto a la presencia de síntomas generales; al tipo histológico celularidad mixta; estadio II-abdominal; III; afectación extraganglionar en los estadios I, ó III; afectación supraclavicular; esplenomegalia mayor de 5 cm; síndrome de cava inferior; síndrome mediastínico; y cuando el paciente es varón mayor de 40 años de edad. Se otorgan 2 puntos al tipo histológico depleción linfocítica; estadio IV; y al tiempo de evolución de los síntomas mayor de 6 meses. El pronóstico adverso que conllevan todos estos factores se confirma ampliamente en la literatura


Assuntos
Pessoa de Meia-Idade , Humanos , Masculino , Feminino , Análise Fatorial , Doença de Hodgkin/complicações , Doença de Hodgkin/patologia , Doença de Hodgkin/terapia , Prognóstico
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