SMALL AS WELL AS LARGE COLORECTAL LESIONS ARE EFFECTIVELY MANAGED BY ENDOSCOPIC MUCOSAL RESECTION TECHNIQUE.

BACKGROUND: Endoscopic mucosal resection (EMR) is an easy-to-use treatment option for superficial colorectal lesions, including lesions ≥20 mm. OBJECTIVE: To evaluate the effectiveness of EMR. METHODS: We evaluated 430 lesions removed by EMR in 404 patients. The lesions were analyzed according to their morphology, size, location, and histology. Lesions <20 mm were resected en bloc, whereas lesions ≥20 mm were removed by piecemeal EMR (p-EMR). Adverse events and recurrence were assessed. RESULTS: Regarding morphology, 145 (33.7%) were depressed lesions, 157 (36.5%) were polypoid lesions and 128 (29.8%) were laterally spreading lesions, with 361 (84%) lesions <20 mm and 69 (16%) ≥20 mm. Regarding histology, 413 (96%) lesions were classified as neoplastic lesions. Overall, 14 (3.3%) adverse reactions occurred, most commonly in lesions removed by p-EMR (P<0.001) and associated with advanced histology (P=0.008). Recurrence occurred in 14 (5.2%) cases, more commonly in lesions removed by p-EMR (P<0.001). CONCLUSION: EMR is an effective technique for the treatment of superficial colorectal lesions, even of large lesions.

Grandes e pequenas lesões colorretais são efetivamente tratadas pela técnica de mucosectomia / Small as well as large colorectal lesions are effectively managed by endoscopic mucosal resection technique

ABSTRACT Background Endoscopic mucosal resection (EMR) is an easy-to-use treatment option for superficial colorectal lesions, including lesions ≥20 mm. Objective To evaluate the effectiveness of EMR. Methods We evaluated 430 lesions removed by EMR in 404 patients. The lesions were analyzed according to their morphology, size, location, and histology. Lesions <20 mm were resected en bloc, whereas lesions ≥20 mm were removed by piecemeal EMR (p-EMR). Adverse events and recurrence were assessed. Results Regarding morphology, 145 (33.7%) were depressed lesions, 157 (36.5%) were polypoid lesions and 128 (29.8%) were laterally spreading lesions, with 361 (84%) lesions <20 mm and 69 (16%) ≥20 mm. Regarding histology, 413 (96%) lesions were classified as neoplastic lesions. Overall, 14 (3.3%) adverse reactions occurred, most commonly in lesions removed by p-EMR (P<0.001) and associated with advanced histology (P=0.008). Recurrence occurred in 14 (5.2%) cases, more commonly in lesions removed by p-EMR (P<0.001). Conclusion EMR is an effective technique for the treatment of superficial colorectal lesions, even of large lesions.

RESUMO Contexto Ressecção endoscópica da mucosa (REM) é uma opção fácil para o tratamento das lesões superficiais do cólon e reto, inclusive para as lesões ≥20 mm de diâmetro. Objetivo Avaliar a efetividade da REM. Métodos Este estudo prospectivo observacional avaliou 430 lesões ressecadas por REM em 404 pacientes. As lesões foram analisadas de acordo com a morfologia, tamanho, localização e histologia. Lesões <20 mm foram removidas em bloco, enquanto lesões ≥20 mm foram ressecadas em piecemeal REM (p-REM). Eventos adversos e recorrência foram avaliados. Resultados Quanto à morfologia, 145 (33,7%) eram lesões deprimidas, 157 (36,5%) eram lesões polipoides e 128 (29,8%) eram lesões que se espalham lateralmente, com 361 (84%) lesões <20 mm e 69 (16%) ≥20 mm. Em relação à histologia, 413 (96%) foram classificadas como lesões neoplásicas. Globalmente tivemos 14 (3,3%) de reações adversas, mais presente nas lesões ≥20 mm removidas por p-REM (P<0,001) e associadas com histologia avançada (P=0,008). A recorrência ocorreu em 14 (5,2%) casos, sendo mais observada em lesões removidas por p-REM (P<0,001). Conclusão REM é uma técnica efetiva para o tratamento das lesões colorretais superficiais, até mesmo para as grandes lesões.

Membrane Distillation: Pre-Treatment Effects on Fouling Dynamics.

In the research reported in this paper, membrane distillation was employed to recover water from a concentrated saline petrochemical effluent. According to the results, the use of membrane distillation is technically feasible when pre-treatments are employed to mitigate fouling. A mathematical model was used to evaluate the fouling mechanism, showing that the deposition of particulate and precipitated material occurred in all tests; however, the fouling dynamic depends on the pre-treatment employed (filtration, or filtration associated with a pH adjustment). The deposit layer formed by particles is not cohesive, allowing its entrainment to the bulk flow. The precipitate fouling showed a minimal tendency to entrainment. Also, precipitate fouling served as a coupling agent among adjacent particles, increasing the fouling layer cohesion.

Comparative effectiveness of 30 % trisodium citrate and heparin lock solution in preventing infection and dysfunction of hemodialysis catheters: a randomized controlled trial (CITRIM trial).

BACKGROUND: Central venous catheters (CVC) are the only option when hemodialysis is needed for patients without definitive vascular access. However, CVC is associated with complications, such as infection, thrombosis, and dysfunction, leading to higher mortality and expenditures. The aim of this study was to compare the effectiveness of 30 % trisodium citrate (TSC30 %) with heparin as CVC lock solutions in preventing catheter-related bloodstream infections (CRBSI) and dysfunction in hemodialysis patients. METHODS: Randomized, double-blind controlled trial comparing the event-free survival of non-tunneled CVC locked with heparin or TSC30 % in adult hemodialysis patients. RESULTS: The study included 464 catheters, 233 in heparin group, and 231 in TSC30 % group. The CRBSI-free survival of TSC30 % group was significantly shorter than that of heparin group. When stratified by insertion site, heparin was better than TSC30 % only in subclavian CVC. The dysfunction-free survival was not different between groups in the main analysis, but there is also a shorter survival among subclavian CVC locked with TSC30 % in stratified analysis. CONCLUSION: There was no difference on CRBSI-free or dysfunction-free survival between jugular vein CVC locked with heparin or 30 % citrate. However, subclavian CVC locked with 30 % citrate presented shorter event-free survival. This difference may be related to anatomical and positional effects, CVC design, and hydraulic aspects of the lock solution. CLINICALTRIALS. GOV IDENTIFIER: NCT02563041.

Prevalence of anxiety in patients admitted to a university hospital in southern Brazil and associated factors / Prevalencia de ansiedade em pacientes internados num hospital universitario do sul do Brasil e fatores associados

Objective: To identify the prevalence of anxiety in adults hospitalized in the clinical ward of a university hospital and to analyze the possible associated factors. Method: A cross-sectional study was performed in a university hospital. All interviewees answered a specific questionnaire and the Hospital Anxiety and Depression Scale. A Poisson regression was used to calculate prevalence ratios with 95% confidence intervals. Results: 282 patients were enrolled. The prevalence of anxiety was 33.7% (95%CI 28.2 - 39.3). Characteristics associated with the outcome were female gender (RP 2.44), age ≥ 60 years (PR 0.65), consultation in primary health care (PR 2.37), estimated time of contact between patient and student > 30 min (RP 1.36), high blood pressure (PR 1.57), diabetes mellitus (PR 1.43), and obesity (RP 1.43). Conclusion: This study found prevalence of high anxiety. It may be associated with certain characteristics of the patients (gender, age, chronic diseases); the medical appointment in primary care and time (estimated by the patient) that the student remained with this patient. The need for a focused approach to mental health care within the hospital has been discussed for a long time. The particularity of this study refers to the environment of a university hospital and to what extent the environment and the patient's relationship with the student are associated with higher prevalence of anxiety. .

Objetivo: Identificar a prevalência de ansiedade em adultos hospitalizados na enfermaria de clínica médica de um hospital universitário e analisar seus possíveis fatores associados. Método: Estudo transversal realizado em hospital universitário, mediante a aplicação de instrumento específico e a Hospital Anxiety and Depression Scale. Foi realizada a regressão de Poisson para o cálculo das Razões de Prevalência com Intervalos de Confiança 95%. Resultados: Participaram 282 pacientes. A prevalência de ansiedade encontrada foi de 33,7% (IC95% 28,2 - 39,3). Mostraram-se associadas à ansiedade o gênero feminino (RP 2,44), a idade ≥ 60 anos (RP 0,65), consulta habitual na atenção primária (RP 2,37), estimativa do paciente sobre o tempo que o aluno permaneceu com ele > 30 min (RP 1,36), a hipertensão arterial sistêmica (RP 1,57), a diabetes mellitus (RP 1,43) e a obesidade (RP 1,43). Conclusão: O presente estudo encontrou uma prevalência de ansiedade elevada. Essa pode estar associada a algumas características do paciente (gênero, idade, doenças crônicas), à consulta habitual em atenção primária e ao tempo (estimado pelo paciente) que o aluno permaneceu com esse enfermo. A necessidade de uma abordagem voltada à saúde mental no âmbito do atendimento hospitalar já vem sendo discutida há muito tempo. A particularidade do presente estudo refere-se ao ambiente de um hospital universitário e em que medida este ambiente e a relação do paciente com o aluno associam-se a uma maior prevalência de ansiedade. .

Prevalence of anxiety in patients admitted to a university hospital in southern Brazil and associated factors.

OBJECTIVE: To identify the prevalence of anxiety in adults hospitalized in the clinical ward of a university hospital and to analyze the possible associated factors. METHOD: A cross-sectional study was performed in a university hospital. All interviewees answered a specific questionnaire and the Hospital Anxiety and Depression Scale. A Poisson regression was used to calculate prevalence ratios with 95% confidence intervals. RESULTS: 282 patients were enrolled. The prevalence of anxiety was 33.7% (95%CI 28.2 - 39.3). Characteristics associated with the outcome were female gender (RP 2.44), age ≥ 60 years (PR 0.65), consultation in primary health care (PR 2.37), estimated time of contact between patient and student > 30 min (RP 1.36), high blood pressure (PR 1.57), diabetes mellitus (PR 1.43), and obesity (RP 1.43). CONCLUSION: This study found prevalence of high anxiety. It may be associated with certain characteristics of the patients (gender, age, chronic diseases); the medical appointment in primary care and time (estimated by the patient) that the student remained with this patient. The need for a focused approach to mental health care within the hospital has been discussed for a long time. The particularity of this study refers to the environment of a university hospital and to what extent the environment and the patient's relationship with the student are associated with higher prevalence of anxiety.