RESUMO
BACKGROUND: Surgical safety may be improved using a medical data recorder (MDR) for the purpose of postoperative team debriefing. It provides the team in the operating room (OR) with the opportunity to look back upon their joint performance objectively to discuss and learn from suboptimal situations or possible adverse events. The aim of this study was to investigate the satisfaction of the OR team using an MDR, the OR Black Box®, in the OR as a tool providing output for structured team debriefing. METHODS: In this longitudinal survey study, 35 gastro-intestinal laparoscopic operations were recorded using the OR Black Box® and the output was subsequently debriefed with the operating team. Prior to study, a privacy impact assessment was conducted to ensure alignment with applicable legal and regulatory requirements. A structured debrief model and an OR Back Box® performance report was developed. A standardized survey was used to measure participant's satisfaction with the team debriefing, the debrief model used and the performance report. Factor analysis was performed to assess the questionnaire's quality and identified contributing satisfaction factors. Multivariable analysis was performed to identify variables associated with participants' opinions. RESULTS: In total, 81 team members of various disciplines in the OR participated, comprising 35 laparoscopic procedures. Mean satisfaction with the OR Black Box® performance report and team debriefing was high for all 3 identified independent satisfaction factors. Of all participants, 98% recommend using the OR Black Box® and the outcome report in team debriefing. CONCLUSION: The use of an MDR in the OR for the purpose of team debriefing is considered to be both beneficial and important. Team debriefing using the OR Black Box® outcome report is highly recommended by 98% of team members participating.
Assuntos
Salas Cirúrgicas , Equipe de Assistência ao Paciente , Satisfação Pessoal , Inquéritos e Questionários , Adulto , Competência Clínica , Análise Fatorial , Feminino , Humanos , Modelos Lineares , Masculino , Pessoa de Meia-Idade , Análise MultivariadaRESUMO
BACKGROUND: A video and medical data recorder in the operating theatre is possible, but concerns over privacy, data use and litigation have limited widespread implementation. The literature on legal considerations and challenges to overcome, and guidelines related to use of data recording in the surgical environment, are presented in this narrative review. METHODS: A review of PubMed and Embase databases and Cochrane Library was undertaken. International jurisprudence on the topic was searched. Practice recommendations and legal perspectives were acquired based on experience with implementation and use of a video and medical data recorder in the operating theatre. RESULTS: After removing duplicates, 116 citations were retrieved and abstracts screened; 31 articles were assessed for eligibility and 20 papers were finally included. According to the European General Data Protection Regulation and US Health Insurance Portability and Accountability Act, researchers are required to make sure that personal data collected from patients and healthcare professionals are used fairly and lawfully, for limited and specifically stated purposes, in an adequate and relevant manner, kept safe and secure, and stored for no longer than is absolutely necessary. Data collected for the sole purpose of healthcare quality improvement are not required to be added to the patient's medical record. CONCLUSION: Transparency on the use and purpose of recorded data should be ensured to both staff and patients. The recorded video data do not need to be used as evidence in court if patient medical records are well maintained. Clear legislation on data responsibility is needed to use the medical recorder optimally for quality improvement initiatives.
ANTECEDENTES: Es posible instalar un sistema de video y grabación de datos médicos en el quirófano, pero su implementación se ha visto limitada por las dudas relativas a la privacidad, uso de datos y aspectos de litigio. Estas dudas deberían superarse, motivo por el que en este trabajo se proponen unas guías sobre el uso de sistemas de registro en el ambiente quirúrgico. MÉTODOS: Se realizó una revisión en las bases de datos Pubmed y Embase y de la Biblioteca Cochrane. Se buscó la jurisprudencia internacional sobre el tema. Se establecieron unas recomendaciones prácticas y de las perspectivas legales adquiridas a través de la experiencia de la implementación y el uso de sistemas de video y registro de datos médicos en el quirófano. RESULTADOS: Se obtuvieron 116 referencias, de las que una vez eliminadas las duplicadas (n = 5) y revisados los resumenes, 31 artículos cumplían los criterios de eligibilidad. En el estudio final se incluyeron 20 artículos. De acuerdo con la Ley Orgánica de Protección de Datos (General Data Protection Regulation, GDRP) y la Ley de Transferencia y Responsabilidad de Seguro Médico (Health Insurance Portability and Accountability Act, HIPAA), los investigadores deben asegurar que los datos personales recopilados pertenecientes a los pacientes y profesionales de la salud se utilicen de manera justa y legal, con fines definidos y bien establecidos, de manera adecuada y relevante, y mantenidos a resguardo y almacenados no más tiempo del estrictamente necesario. No es necesario que los datos recopilados con el único propósito de mejorar la calidad de la atención médica se agreguen a la historia clínica del paciente. CONCLUSIÓN: Se debe asegurar por parte del personal sanitario como del paciente, la transparencia tanto en la utilización como en el objetivo de los datos almacenados. Los datos registrados en video no es necesario que sean usados como evidencia en procesos judiciales si la historia clínica de los pacientes cumple los estandares establecidos. Se precisa una legislación clara sobre la responsabilidad de los datos para la utilización óptima de los registros médicos en las iniciativas de mejora de la calidad.
Assuntos
Salas Cirúrgicas/legislação & jurisprudência , Procedimentos Cirúrgicos Operatórios/legislação & jurisprudência , Humanos , Erros Médicos/legislação & jurisprudência , Segurança do Paciente/legislação & jurisprudência , Privacidade , Gestão da Segurança/legislação & jurisprudência , Gravação em Vídeo/legislação & jurisprudênciaRESUMO
The current, optimistic prognosis is that newborns will reach an average age of 100 years. This increased life-expectancy requires a renewed vision of long-term goals for oral health. The starting-point could be a prospective end-point with minimal oral function which should be reached, for example, in the last years of one's life. The consequence is that adequate oral healthcare for the elderly starts in childhood. Choices such as the extraction of premolars for orthodontic reasons and the dental re-restoration cycle have a great negative impact on reaching this goal. The average sustainability of dental restorations or prosthetic constructions is commonly much shorter than the life-expectancy of a patient. If oral treatment is necessary, it is recommended to give priority to maintaining a minimally functional dentition up to an advanced age, instead offocusing on short- or medium-term goals.
Assuntos
Envelhecimento/fisiologia , Assistência Odontológica Integral/normas , Expectativa de Vida , Saúde Bucal , Qualidade de Vida , Humanos , Mastigação/fisiologiaRESUMO
OBJECTIVE: To determine whether pelvic floor dysfunction (PFD) might be a risk factor for or consequence of febrile urinary tract infection (UTI), as UTI in adults is a common infection in which an underlying urological abnormality is often considered, and as in children, PFD is also thought to have a pathophysiological role in adults with UTI. PATIENTS AND METHODS: A multicentre case-control study was conducted at 26 primary-care centres and at six Emergency Departments of regional hospitals. Cases were consecutive patients aged > or =18 years, who presented with febrile UTI. Controls were randomly selected subjects who visited their general practitioner for reasons other than UTI or fever. A validated pelvic floor questionnaire (the Pelvic Floor Inventories Leiden, PelFIs) was used to assess pelvic floor function. RESULTS: Between October 2006 and December 2007, 153 cases were included; of these, the completed questionnaires of 102 (response rate 67%) were compared to those of 100 of 110 (response rate 91%) controls. The median age of cases and controls was 65 and 58 years, respectively; 40% of cases and controls were men. The percentage of PelFIs outcomes consistent with PFD were comparable between cases and controls, at 21% vs 23%, respectively (odds ratio 0.9, 95% confidence interval, CI, 0.4-1.78). In the multivariate analysis, comorbidity (odds ratio 4.9, 95% CI 2.2-11.1) and a history of UTI (odds ratio 2.5, 95% CI 1.0-6.1) were independent significant risk factors for febrile UTI, whereas PFD was not (odds ratio 1.0, 0.5-2.2). Within the group of cases, PFD was not associated with bacteriuria during assessment of PelFIs (odds ratio 1.1, 95% CI 0.4-3.5) and inversely related to a history of UTI within the previous year (odds ratio 0.2, 0.1-0.9). CONCLUSIONS: PFD is common among adults but it does not seem to be a risk factor for febrile UTI.
Assuntos
Febre/etiologia , Diafragma da Pelve/fisiopatologia , Pielonefrite/etiologia , Infecções Urinárias/etiologia , Adulto , Idoso , Estudos de Casos e Controles , Feminino , Humanos , Masculino , Pessoa de Meia-IdadeRESUMO
PURPOSE OF INVESTIGATION: To evaluate the prognostic significance for overall survival rate for the marker combination TPS and CA125 in ovarian cancer patients after three chemotherapy courses during long-term clinical follow-up. METHODS: The overall survival of 212 (out of 213) ovarian cancer patients (FIGO Stages I-IV) was analyzed in a prospective multicenter study during a 10-year clinical follow-up by univariate and multivariate analysis. RESULTS: In patients with ovarian cancer FIGO Stage I (34 patients) or FIGO Stage II (30 patients) disease, the univariate and multivariate analysis of the 10-year overall survival data showed that CA125 and TPS serum levels were not independent prognostic factors. In the FIGO Stage III group (112 patients), the 10-year overall survival was 15.2%; while in the FIGO Stage IV group (36 patients) a 10-year overall survival of 5.6% was seen. Here, the tumor markers CA125 and TPS levels were significant prognostic factors in both univariate and multivariate analysis (p < 0.0001). In a combined FIGO Stage III + FIGO Stage IV group (60 patients with optimal debulking surgery), multivariate analysis demonstrated that CA125 and TPS levels were independent prognostic factors. For patients in this combined FIGO Stage III + IV group having both markers below respective discrimination level, 35.3% survived for more than ten years, as opposed to patients having one marker above the discrimination level where the 10-year survival was reduced to 10% of the patients. For patients showing both markers above the respective discrimination level, none of the patients survived for the 10-year follow-up time. CONCLUSION: In FIGO III and IV ovarian cancer patients, only patients with CA 125 and TPS markers below the discrimination level after three chemotherapy courses indicated a favorable prognosis. Patients with an elevated level of CA 125 or TPS or both markers after three chemotherapy courses showed unfavorable prognosis.
Assuntos
Antineoplásicos/administração & dosagem , Antígeno Ca-125/sangue , Neoplasias Ovarianas/sangue , Neoplasias Ovarianas/tratamento farmacológico , Peptídeos/sangue , Idoso , Esquema de Medicação , Feminino , Seguimentos , Humanos , Pessoa de Meia-Idade , Estadiamento de Neoplasias , Neoplasias Ovarianas/cirurgia , Prognóstico , Análise de SobrevidaRESUMO
The aim of this article is to present updated guidelines for the use of serum, tissue and faecal markers in colorectal cancer (CRC). Lack of specificity and sensitivity preclude the use of all existing serum markers for the early detection of CRC. For patients with stage II or stage III CRC who may be candidates for either liver resection or systemic treatment should recurrence develop, CEA should be measured every 2-3 months for at least 3 years after diagnosis. Insufficient evidence exists to recommend routine use of tissue factors such as thymidylate synthase, microsatellite instability (MSI), p53, K-ras and deleted in colon cancer (DCC) for either determining prognosis or predicting response to therapy in patients with CRC. Microsatellite instability, however, may be used as a pre-screen for patients with suspected hereditary non-polyposis colorectal cancer. Faecal occult blood testing but not faecal DNA markers may be used to screen asymptomatic subjects 50 years or older for early CRC.
Assuntos
Biomarcadores Tumorais/sangue , Neoplasias Colorretais/diagnóstico , Antígeno Carcinoembrionário/sangue , DNA de Neoplasias/análise , Suscetibilidade a Doenças , Humanos , Repetições de Microssatélites , Metástase Neoplásica/diagnóstico , Sangue Oculto , Timidilato Sintase/metabolismo , Proteína Supressora de Tumor p53/metabolismoRESUMO
In recent years, numerous serum and cell/tissue-based markers have been described for colorectal cancer (CRC). The aim of this article was to provide guidelines for the routine clinical use of some of these markers. Lack of sensitivity and specificity preclude the use of any available serum markers such as carcinoembryonic antigen (CEA), CA 19-9, CA 242, CA 72-4, tissue polypeptide antigen (TPA) or tissue polypeptide-specific antigen (TPS) for the early detection of CRC. However, preoperative measurement of CEA is desirable as this may give independent prognostic information, help with surgical management and provide a baseline level for subsequent determinations. For patients with stage 2 (Dukes' B) and 3 (Dukes' C) disease who may be candidates for liver resection, CEA levels should be measured every 2-3 months for at least 3 years after diagnosis. For monitoring treatment of advanced disease, CEA should also be tested every 2-3 months. Insufficient evidence is presently available to recommend the routine use of other serum markers for monitoring purposes. Similarly, the new cell and tissue-based markers (e.g, ras, P53) cannot yet be recommended for routine clinical use.
Assuntos
Biomarcadores Tumorais/sangue , Neoplasias Colorretais/diagnóstico , Guias de Prática Clínica como Assunto , Antígenos Glicosídicos Associados a Tumores/sangue , Antígeno CA-19-9/sangue , Neoplasias Colorretais/sangue , Humanos , Programas de Rastreamento/métodos , Prognóstico , Inibidor Tecidual de Metaloproteinase-1/sangueRESUMO
In 124 primary breast cancer patients the maximum values of the lateralisation of the internal mammary chain (IMC) and their corresponding depths could be determined by scintigraphy and ultrasonography in 77% and 85% of the cases, respectively. With respect to the lateralisation it appeared that these values were uncorrelated between the two methods. With respect to depth correlation was found (correlation coefficient 0.34; P=0.001). We conclude that substantial differences are noted. Irradiation of the IMC based on computed tomography treatment planning might be a better alternative.
Assuntos
Neoplasias da Mama/diagnóstico por imagem , Linfonodos/diagnóstico por imagem , Neoplasias da Mama/patologia , Feminino , Humanos , Linfonodos/patologia , Metástase Linfática , Pessoa de Meia-Idade , Cintilografia , Radioterapia Assistida por Computador/métodos , UltrassonografiaRESUMO
The purpose of the present study was to determine the acute effects of the beta-carboline norharman on cocaine dependence. Male Wistar rats were allowed to self-administer cocaine for 3 h for seven sessions. A single injection of norharman (0.2-20 mg/kg, i.p.) was given 30 min before the onset of the seventh session. It was shown that norharman decreased the cocaine intake in a U-shaped manner with the dose of 10 mg/kg having the most potent effect. These results indicate that several receptor mechanisms mediate the effects of norharman. In addition, 15 min following the administration of norharman on session 7, motor and sensory skill tests were performed. Six naïve animals were tested with the dose, which has the most pronounced effect on cocaine self-administration intake, in order to examine whether the observed effects were due to norharman or due to the combination of norharman and cocaine. It was observed that norharman in both the naïve and cocaine-exposed animals significantly increased the response time in the somato-sensory orienting test. However, only in the naïve animals a significant effect of norharman on the grasp reflex was observed.
Assuntos
Transtornos Relacionados ao Uso de Cocaína , Harmina/farmacologia , Neurotoxinas/farmacologia , Desempenho Psicomotor/efeitos dos fármacos , Animais , Carbolinas , Transtornos Relacionados ao Uso de Cocaína/tratamento farmacológico , Transtornos Relacionados ao Uso de Cocaína/psicologia , Harmina/análogos & derivados , Harmina/uso terapêutico , Masculino , Destreza Motora/efeitos dos fármacos , Destreza Motora/fisiologia , Neurotoxinas/uso terapêutico , Desempenho Psicomotor/fisiologia , Ratos , Ratos Wistar , Autoadministração/psicologiaRESUMO
AIM/BACKGROUND: In a new autosomal dominant syndrome (which the authors called hereditary vascular retinopathy (HVR)) cerebral ischaemia, Raynaud's phenomenon, and migraine are the most striking features. As serotonin (5-HT) is known to play a role in vasospastic processes, Raynaud's phenomenon, and migraine they wondered whether the serotoninergic status in patients with HVR is different. Therefore, it was decided to investigate some serotoninergic variables in these patients. METHODS: The study was conducted in 12 patients with HVR, 10 relatives, and 19 healthy controls. The levels of intraplatelet and plasma 5-HT were measured, as well as the plasma levels of its precursor amino acid tryptophan and the ratio of tryptophan to the large neutral amino acids, which compete with the transport of tryptophan through the blood-brain barrier. RESULTS: In both the patients with HVR and in nine relative the concentrations of 5-HT in plasma and platelets were significantly lower than in controls. The plasma levels of tryptophan and the tryptophan ratio were also found to be lower in the patient group compared with the control group, but not in the relatives. CONCLUSION: The observed alterations in 5-HT and its precursor tryptophan strongly suggest the existence of a malfunctioning of the serotoninergic system in the HVR syndrome.
Assuntos
Vasos Retinianos , Serotonina/sangue , Adulto , Biomarcadores/sangue , Plaquetas/química , Cromatografia Líquida de Alta Pressão , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Doenças Retinianas/sangue , Doenças Retinianas/genética , Síndrome , Triptofano/sangueRESUMO
OBJECTIVE: To assess the current role of ultrasound in the diagnosis and treatment of pathological changes in the wrist and hand. METHODS: 39 patients (14 male and 25 female, mean age 35 yrs.) with ill-defined pain and/or swelling of the wrist or hand were examined using a high-definition ultrasound (US) instrument. RESULTS: 18 patients had tenosynovitis, which in one patient was due to a previously unsuspected foreign body. 10 patients had arthritis involving the wrist and 5 the fingers; 2 patients had a ganglion; one had a neuroma of the median nerve and one patient with a previous tenorrhaphy suffered from the recurrent rupture of this tendon. Two patients had carpal tunnel syndrome, one due to tenosynovitis and one due to the formation of a post-operative fibrotic sheath around the median nerve. 7 patients with synovitis of the wrist underwent US-guided synovial biopsy. 12 patients with tenosynovitis and 6 with arthritis received injections of corticosteroids plus anaesthetic under US-guidance. The spreading of the steroid crystals around the tendon and throughout the joint could be easily monitored. No complications were encountered. CONCLUSION: High-definition ultrasound is a valuable technique for the imaging of pathologic changes of the wrist and hand and for injection therapy.
Assuntos
Articulações dos Dedos/diagnóstico por imagem , Doenças Reumáticas/diagnóstico por imagem , Articulação do Punho/diagnóstico por imagem , Adolescente , Adulto , Artralgia/etiologia , Artralgia/patologia , Combinação de Medicamentos , Feminino , Articulações dos Dedos/efeitos dos fármacos , Articulações dos Dedos/patologia , Glucocorticoides/uso terapêutico , Humanos , Injeções Intra-Articulares , Lidocaína/uso terapêutico , Masculino , Pessoa de Meia-Idade , Doenças Reumáticas/tratamento farmacológico , Doenças Reumáticas/patologia , Tenossinovite/diagnóstico por imagem , Tenossinovite/tratamento farmacológico , Ultrassonografia , Articulação do Punho/efeitos dos fármacos , Articulação do Punho/patologiaRESUMO
The objective of this study was the clinical comparison of newly developed antibodies used in commercially available test systems with CA 15-3 (CIS bio international). IMMULITE BR-MA is a sequential chemoluminescent assay using the Mab's Ma552 and Ma695. Truquant BR RIA is a competitive inhibition radioimmunoassay using the Mab B27.29. ELSA-CA 15-3 is a sequential immunoradiometric assay using the Mab's115D8 and DF3. In the study 32 breast cancer patients (206 serum samples) were included during therapy monitoring. Linear regression analysis was performed with the CA 15-3 test as the reference method. Clinical criteria of response were according to UICC). Regression analysis in the range 0-1000 kU/l revealed the equations: IMMULITE = 1.65CIS + 0.87 (r = 0.78) and Truquant = 1.16 CIS + 10.6 (r = 0.95). The upper reference level of normal controls were somewhat higher than using the CIS method (30 kU/l): IMMULITE and TRUQUANT 40 kU/l and 36 kU/l, respectively. In all patients (except in 1 serum sample) nearly complete parallel tumour marker changes were seen with only minimal discrepancies in a few patients. However, the average factor between different patients varied between 0.51-6.9 (IMMULITE) and 0.74-2.3 (Truquant). In comparison to UICC criteria no discrepancies were observed. Therefore, we concluded that the test systems from DPC and BIOMIRA for the CA 15-3 antigen can replace the CIS test. Patient results were not interchangable. All test systems followed the clinical course of the disease in the same way.
Assuntos
Antígenos de Neoplasias/sangue , Biomarcadores Tumorais/sangue , Neoplasias da Mama/imunologia , Mucina-1/sangue , Feminino , Humanos , Técnicas Imunoenzimáticas , RadioimunoensaioRESUMO
Tissue polypeptide antigen has been advocated over the past two decades as a serum tumour marker. It was a long time before it was proven that these proteins in the serum are related to cytokeratin fragments. In this study the different behaviour of the test systems TPA, TPS, TPA(cyk) and CYFRA 21.1 were investigated in serum samples, mainly of metastasized cancer patients. By selecting individual samples with a high and a low TPA/TPS ratio it could be proven that no correlation existed in these samples between TPS (determining fragments of cytokeratin 18) and CYFRA 21.1 (determining fragments of cytokeratin 19). On the contrary, a good correlation was established between the TPA test and the CYFRA 21.1 test, and intermediate correlations were present between these tests and TPA (cyk). The TPA (cyk) test determines cytokeratin 8 and 18 fragments. During therapy, monitoring of metastasized patients with these tests could show a different pattern of reactivity. It is concluded that the different test results during therapy monitoring are not always easy to interpretate. The release of cytokeratins from cancer cells needs further study.
Assuntos
Biomarcadores Tumorais/sangue , Queratinas/sangue , Peptídeos/sangue , Doenças Mamárias/sangue , Feminino , Humanos , Metástase Neoplásica , Antígeno Polipeptídico TecidualRESUMO
The serum markers TPS and CA 125 were determined in serum, cyst fluid and ascites in ovarian carcinoma patients and in patients with benign ovarian neoplasms. The levels of TPS and CA 125 were significantly higher in malignant and benign tumor cysts and ascitic fluids than in corresponding patients sera (p < 0.005 for TPS, p < 0.0001 for CA 125). The concentrations of cyst fluid TPS and CA 125 were also usually higher in cancer patients than in patients with benign ovarian neoplasms. TPS and CA 125 were elevated in a higher proportion of ovarian cancer patients sera than in benign ovarian patients' sera (p < 0.001 for both markers). Serum preoperative TPS and CA 125 levels were significantly higher in patients with advanced disease (FIGO stage III/IV) than in patients with early stage disease (FIGO stage I/II, p = 0.002, p < 0.05 respectively). When histology was considered, small differences in the marker signals were noted for TPS and CA 125 with the exception of mucinous neoplasms, where TPS showed a markedly higher signal. These results suggest that the combined use of TPS and CA 125 could be of additive value for the identification of epithelial ovarian neoplasms. Postsurgical TPS sera levels achieved the normal values faster than CA 125 suggesting that determination of TPS concentration before and 3 days after surgery seems to be valuable for the evaluation of radical surgery.
Assuntos
Biomarcadores Tumorais/análise , Antígeno Ca-125/análise , Carcinoma/patologia , Cistos Ovarianos/patologia , Neoplasias Ovarianas/patologia , Peptídeos/análise , Adenocarcinoma/sangue , Adenocarcinoma/patologia , Ascite/sangue , Ascite/patologia , Biomarcadores Tumorais/sangue , Antígeno Ca-125/sangue , Carcinoma/sangue , Carcinoma/cirurgia , Carcinoma Endometrioide/sangue , Carcinoma Endometrioide/patologia , Cistadenoma/sangue , Cistadenoma/patologia , Feminino , Humanos , Estadiamento de Neoplasias , Cistos Ovarianos/sangue , Cistos Ovarianos/cirurgia , Neoplasias Ovarianas/sangue , Neoplasias Ovarianas/cirurgia , Peptídeos/sangueRESUMO
This paper describes an automated immunoassay for the measurement of TPS developed for the IMMULITE. The IMMULITE system is a fully automated continous random access analyzer, which uses enzyme-amplified chemiluminiscent as the detection system. The IMMULITE TPS assay is a sequential, two-site chemiluminiscent enzyme immunometric assay designed for the quantitative measurement of TPS in serum. The IMMULITE TPS assay covers a clinical concentration range of 20-2400 U/L, with a lower detection limit of 6 U/L. A serum method comparison (n = 340) to the TPS IRMA assay demonstrates a correlation coefficient of 0.961 and a slope of 1.04. Samples run on IMMULITE TPS assay exhibit linearity upon dilution where recovered values fall within 15% of the theoretical sample value. The intra-assay precision of the IMMULITE TPS assay ranged from 3.3-4.7%, while the interassay precision ranged from 3.9-6.0%. By using different methods (immunoradiometric assay vs chemiluminiscent enzyme-labeled immunometric assay, one-step procedure vs sequential two-step procedure, manual vs fully automated procedure) the two TPS tumor marker tests used in this study gave quite comparable determinations for the sera from the cancer patients.
Assuntos
Biomarcadores Tumorais/sangue , Imunoensaio/instrumentação , Peptídeos/sangue , Anticorpos Monoclonais , Autoanálise/instrumentação , Autoanálise/métodos , Neoplasias da Mama/sangue , Neoplasias da Mama/diagnóstico , Neoplasias da Mama/terapia , Calibragem , Antígeno Carcinoembrionário/sangue , Neoplasias do Colo/sangue , Neoplasias do Colo/diagnóstico , Neoplasias do Colo/terapia , Feminino , Humanos , Imunoensaio/métodos , Ensaio Imunorradiométrico/instrumentação , Ensaio Imunorradiométrico/métodos , Medições Luminescentes , Análise de Regressão , Reprodutibilidade dos Testes , Sensibilidade e Especificidade , Fatores de TempoRESUMO
Serum TPS, CA 15-3 and CEA levels were measured in 31 women when progressive metastatic disease was established according to UICC criteria. A method was developed to apply these serum tumor markers in order to measure the short-term effect of the treatment. Using strict criteria, whereby an increase of the markers of more than 25% indicated progressive disease and a decrease of more than 50% indicated a positive effect of the treatment, TPS (which measures tumoral activity) was shown to be a more sensitive and earlier marker for measuring treatment response than CA 15-3 and CEA (which measure tumor mass).
Assuntos
Biomarcadores Tumorais/análise , Neoplasias da Mama/terapia , Antígenos Glicosídicos Associados a Tumores/análise , Neoplasias da Mama/diagnóstico , Neoplasias da Mama/patologia , Antígeno Carcinoembrionário/análise , Feminino , Seguimentos , Humanos , Metástase Neoplásica , Peptídeos/análise , Estudos Retrospectivos , Antígeno Polipeptídico TecidualRESUMO
VEGF is an important angiogenic cytokine with a critical role in tumor angiogenesis. VEGF concentrations were measured using an ELISA assay, detecting VEGF165 isoform, in tumor cyst and/or ascitic fluids and in sera of 86 patients with malignant neoplasms and in 53 patients with benign ovarian neoplasms. VEGF levels were significantly elevated in the sera and cyst fluids of carcinoma patients compared with patients who had benign neoplasms. In carcinoma patients, statistically higher VEGF levels were detected in tumor effusions than in corresponding sera. The differences between VEGF values in sera and tumor effusions in relation to histological subtypes of ovarian carcinoma and FIGO stages were statistically insignificant. High VEGF levels in ascitic fluids appeared to be significantly associated with shorter disease-free survival and overall survival In multivariate analysis, besides FIGO stage and age of patients, only serum VEGF concentration was an independent prognostic factor for overall survival. The elevated VEGF levels in sera and tumor effusions of patients with FIGO stages I/II indicated that angiogenesis promoted by VEGF is a continuous process, independent of clinical advancement of the disease.
Assuntos
Neoplasias Ovarianas/metabolismo , Fator A de Crescimento do Endotélio Vascular/metabolismo , Líquido Ascítico/metabolismo , Líquido Ascítico/patologia , Líquido Cístico/metabolismo , Progressão da Doença , Ensaio de Imunoadsorção Enzimática , Feminino , Humanos , Neoplasias Ovarianas/sangue , Neoplasias Ovarianas/patologia , Curva ROC , Taxa de Sobrevida , Fator A de Crescimento do Endotélio Vascular/sangueRESUMO
The tumour markers CEA, AFP, CA 125 and CA 199 were analyzed in a group of apparently healthy subjects in Kuwait. The sample (n = 394) included both genders in the population with a mean age of 38 (S.d. 12.0) years. The distribution of CEA levels values was significant different (Mann-Whitney U test) between Kuwaiti and non-Kuwaiti. The distribution of AFP levels was found to be the same in all groups. The distribution of CA 125 levels was significantly higher in females than in males, both in Kuwaiti and non-Kuwaiti. The distribution of CA 19-9 values was found to be significantly higher in the Kuwaiti female group when compared to the males. The upper reference level was defined as the 95 percentile of the normal values in each group. In the total population the reference level of AFP was 5.6 micrograms/l and of CA 19.9 43 kU/l. The reference level of CA 125 was 16 U/l in males and 24 kU/l in females, respectively. The CEA reference level in Kuwaitis was 6.9 micrograms/l and in non-Kuwaitis 4.4 micrograms/l. The results indicated the importance of determining the reference levels of tumour markers for each individual laboratory. It was also emphasized that care should be taken on the impact of 95 percentiles of normal and benign disease groups.
Assuntos
Biomarcadores Tumorais/sangue , Antígeno Ca-125/sangue , Antígeno CA-19-9/sangue , Antígeno Carcinoembrionário/sangue , alfa-Fetoproteínas/análise , Adulto , Feminino , Humanos , Kuweit , Masculino , Pessoa de Meia-Idade , Distribuição Normal , Valores de Referência , Caracteres SexuaisRESUMO
BACKGROUND: The array of antibodies and assay formats utilised by kit manufacturers contribute to different values being quoted as clinically "normal". Kit-specific reference range limits will maximise the clinical utility of tumour marker assays. MATERIALS AND METHODS: Serum samples (approximately 800) were obtained from volunteers, age 20-70 years, in France, Germany, The Netherlands and Portugal. Each sample was assayed with a number of DPC tumour markers kits. IMMULITE assays were carried out in The Netherlands; Coat-A-Count IRMA, IRMA-Count, Double Antibody and Milenia assays at EURO/DPC Ltd. Analytes included, BR-MA, OM-MA, GI-MA (for the determination of CA 15-3, CA 125 and CA 19-9, respectively), CEA, PSA, PAP and HCG. RESULTS: The median and 95th percentiles for each analyte in each assay format were estimated; where appropriate, data subsets were considered. CONCLUSION: Kit-specific reference range data generated for important tumour marker analytes will help clinicians interprete their assay results.
Assuntos
Biomarcadores Tumorais/sangue , Adulto , Fatores Etários , Idoso , Antígeno Ca-125/sangue , Antígeno CA-19-9/sangue , Antígeno Carcinoembrionário/sangue , Gonadotropina Coriônica/sangue , Feminino , França , Alemanha , Humanos , Ensaio Imunorradiométrico/instrumentação , Ensaio Imunorradiométrico/métodos , Masculino , Pessoa de Meia-Idade , Mucina-1/sangue , Países Baixos , Portugal , Antígeno Prostático Específico/sangue , Kit de Reagentes para Diagnóstico , Valores de Referência , Caracteres Sexuais , FumarRESUMO
Two hundred and sixty ovarian cancer patients (including all FIGO stages) were enrolled in a prospective multicentre study. In this interim study we analyzed 206 patients receiving combined chemotherapy for at least 3 courses for two-year overall survival (OS). CA 125 and TPS were applied for monitoring treatment and the relationship between marker levels, marker changes and clinical assessments was established. Preoperative CA 125 or TPS levels were not correlated with OS in FIGO stage I and II patients. After 3 chemotherapy courses the marker levels were not correlated with OS in stage I and II. Partial debulking in stage II patients was a bad prognostic factor. CA 125 or TPS levels (using a CA 125 discrimination level of 25 kU/l and a TPS discrimination level of 100 U/l) after 3 courses of chemotherapy were highly significantly correlated with OS in FIGO stages III and IV patients: CA 125 two-year OS 67% versus 26% (p < 0.0001) and TPS two-year OS 55% versus 22% (p < 0.0001). The prognostic value of CA 125 levels after 3 chemotherapy courses could be further increased by combining CA 125 and TPS levels. When both CA 125 and TPS levels were below their respective discrimination levels, the two-year overall survival was 75%. When both levels were above the discrimination level, the two-year overall survival was only 17%.