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1.
Artigo em Inglês | MEDLINE | ID: mdl-34589620

RESUMO

BACKGROUND AND PURPOSE: In selected breast cancer patients, radiation treatment (RT) lowers the recurrence risk, with minor or no improvement of survival. In these patients, the choice to undergo RT is considered a preference-sensitive decision. To facilitate shared decision-making (SDM) for this choice, a patient decision aid was made. We aimed to evaluate the effect of the PtDA on decisional conflict. MATERIAL AND METHODS: We performed a multi-center pre- and post-intervention study (BRASA-trial). The first 214 patients made a choice without support of the PtDA; the subsequent 189 patients received a link to the PtDA. The primary endpoint was decisional conflict; secondary endpoints were perceived SDM and knowledge on treatment options. Patients filled out questionnaires immediately after, and three months after their decision. Data were analyzed with multi-level regression analysis. RESULTS: After correcting for the difference in age and educational level, the mean (±SD) decisional conflict for the intervention group (27.3 ± 11.4) was similar to the control group (26.8 ± 11.4; difference = 0.86, 95 %CI 1.67,3.36) three months after their decision. This also applied to perceived SDM. Patients exposed to the PtDA pursued additional treatment less often (45% vs 56%, odds ratio 0.59, 95 %CI 0.37,0.95) and scored significantly higher on the knowledge test (7.4 ± 2.5 vs 6.1 ± 2.7, corrected difference = 1.0, 95 %CI 0.50,1.49). There was no significant increase in consultation time. CONCLUSIONS: Handing out the PtDA was not associated with improved scores in decisional conflict or perceived SDM, but it was associated with a choice for less additional treatment and better knowledge about the treatment options.

2.
J Clin Monit Comput ; 35(4): 787-796, 2021 08.
Artigo em Inglês | MEDLINE | ID: mdl-32488678

RESUMO

Monitoring of postoperative pulmonary function usually includes respiratory rate and oxygen saturation measurements. We hypothesized that changes in postoperative respiratory rate do not correlate with changes in tidal volume or minute ventilation. In addition, we hypothesized that variability of minute ventilation and tidal volume is larger than variability of respiratory rate. Respiratory rate and changes in tidal volume and in minute ventilation were continuously measured in 27 patients during 24 h following elective abdominal surgery, using an impedance-based non-invasive respiratory volume monitor (ExSpiron, Respiratory Motion, Waltham, MA, US). Coefficients of variation were used as a measure for variability of respiratory rate, tidal volume and minute ventilation. Data of 38,149 measurements were analyzed. We found no correlation between respiratory rate and tidal volume or minute ventilation (r2 = 0.02 and 0.01). Mean respiratory rate increased within the first 24 h after abdominal surgery from 13.9 ± 2.5 to 16.2 ± 2.4 breaths/min (p = 0.008), while tidal volume and minute ventilation remained unchanged (p = 0.90 and p = 0.18). Of interest, variability of respiratory rate (0.21 ± 0.06) was significantly smaller than variability of tidal volume (0.37 ± 0.12, p < 0.001) and minute ventilation (0.41 ± 0.12, p < 0.001). Changes in postoperative respiratory rate do not allow conclusions about changes in tidal volume or minute ventilation. We suggest that postoperative alveolar hypoventilation may not be recognized by monitoring respiratory rate alone. Variability of respiratory rate is smaller than variability in tidal volume and minute ventilation, suggesting that adaptations of alveolar ventilation to metabolic needs may be predominately achieved by variations in tidal volume.


Assuntos
Taxa Respiratória , Humanos , Medidas de Volume Pulmonar , Monitorização Fisiológica , Período Pós-Operatório , Volume de Ventilação Pulmonar
3.
Breast Cancer Res Treat ; 185(3): 685-695, 2021 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-33099691

RESUMO

PURPOSE: Patient decision aids (PtDAs) have been reported to have a positive influence on patients making a health care decision in trials. Nevertheless, post-trial implementation is poor. The aim of this study is to explore patient, clinician, and organizational success factors for implementing a PtDA designed for breast cancer patients, facing a decision on their radiation treatment. METHODS: We performed a process evaluation within a multi-center pre- and post-implementation trial. The PtDA was incorporated as much as possible in the logistics of 13 participating centers. Tracking data were collected on PtDA use. Process characteristics were recorded by both clinicians and patients. A logistic regression method was applied to investigate which process characteristics were significantly related to the probability that patients logged in to the PtDA. RESULTS: 189 patients received the PtDA of whom140 (77%) used the PtDA. If patients received the link via the surgery department they were more likely to use the PtDA (OR 9.77 (1.28-74.51)), compared to patients that received the link via the radiation oncology department. If the report of the multidisciplinary team stated that radiation treatment "had to be discussed with the patient", patients were more likely to use the PtDA (OR 2.29 (1.12-4.71)). Educational level was not related to the probability of PtDA use. CONCLUSIONS: We accomplished a high level of PtDA use. Patients were more likely to use the PtDA if they received the link via the surgery department and if "to be discussed with the patient" was written in the multidisciplinary team report.


Assuntos
Neoplasias da Mama , Técnicas de Apoio para a Decisão , Neoplasias da Mama/terapia , Tomada de Decisões , Feminino , Humanos , Participação do Paciente
4.
Surg Oncol ; 33: 43-50, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-32561098

RESUMO

INTRODUCTION: Information regarding the effects of resection of the primary tumor in stage IV inflammatory breast cancer (IBC) is scarce. We analyzed the impact of resection of the primary tumor on overall survival (OS) in a large stage IV IBC population. MATERIALS AND METHODS: Patients diagnosed with stage IV IBC between 2005 and 2016 were selected from the Netherlands Cancer Registry, excluding patients without any treatment. To correct for immortal time bias, we performed a landmark analysis including patients alive at least six months after diagnosis. With propensity score matching, patients undergoing surgery of the primary tumor were matched to patients not receiving surgery. Multivariable Cox proportional hazard analyses were performed to determine the association between treatment strategy and OS in the non-matched and matched cohort. RESULTS: Of the 580 included patients after landmark analysis, 441 patients (76%) received only non-surgical treatments and 139 (24%) underwent surgery (96% mastectomy). Median follow-up was 28.8 and 20.0 months in the surgery and no surgery group, respectively. Surgery in the non-matched cohort was independently associated with better survival (HR0.56[95%CI:0.42-0.75]). In the matched cohort (n = 202), surgically treated patients had improved survival over nonsurgically treated patients (p < 0.005). Multivariable analysis of the matched cohort revealed that surgery was still associated with better survival (HR0.62[95%CI:0.44-0.87]). CONCLUSION: Although residual confounding and confounding by severity cannot be ruled out, this study suggests that surgery of the primary tumor is associated with improved OS and should be considered as part of the treatment strategy in stage IV IBC.


Assuntos
Antineoplásicos/uso terapêutico , Carcinoma/terapia , Neoplasias Inflamatórias Mamárias/terapia , Mastectomia/métodos , Radioterapia , Idoso , Antineoplásicos Hormonais , Antineoplásicos Imunológicos , Axila , Neoplasias Ósseas/secundário , Neoplasias Ósseas/terapia , Carcinoma/secundário , Feminino , Humanos , Neoplasias Inflamatórias Mamárias/patologia , Neoplasias Hepáticas/secundário , Neoplasias Hepáticas/terapia , Neoplasias Pulmonares/secundário , Neoplasias Pulmonares/terapia , Excisão de Linfonodo/métodos , Mastectomia Segmentar/métodos , Pessoa de Meia-Idade , Análise Multivariada , Estadiamento de Neoplasias , Países Baixos , Pontuação de Propensão , Modelos de Riscos Proporcionais , Taxa de Sobrevida
5.
Breast ; 51: 105-113, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-32298961

RESUMO

BACKGROUND AND AIM: Patient decision aids for oncological treatment options, provide information on the effect on recurrence rates and/or survival benefit, and on side-effects and/or burden of different treatment options. However, often uncertainty exists around the probability estimates for recurrence/survival and side-effects which is too relevant to be ignored. Evidence is lacking on the best way to communicate these uncertainties. The aim of this study is to develop a method to incorporate uncertainties in a patient decision aid for breast cancer patients to support their decision on radiotherapy. METHODS: Firstly, qualitative interviews were held with patients and health care professionals. Secondly, in the development phase, thinking aloud sessions were organized with four patients and 12 health care professionals, individual and group-wise. RESULTS: Consensus was reached on a pictograph illustrating the whole range of uncertainty for local recurrence risks, in combination with textual explanation that a more exact personalized risk would be given by their own physician. The pictograph consisted of 100 female icons in a 10 x 10 array. Icons with a stepwise gradient color indicated the uncertainty margin. The prevalence and severity of possible side-effects were explained using verbal labels. CONCLUSIONS: We developed a novel way of visualizing uncertainties in recurrence rates in a patient decision aid. The effect of this way of communicating risk uncertainty is currently being tested in the BRASA study (NCT03375801).


Assuntos
Neoplasias da Mama/radioterapia , Visualização de Dados , Tomada de Decisões , Técnicas de Apoio para a Decisão , Pessoal de Saúde/psicologia , Participação do Paciente/psicologia , Comunicação , Feminino , Humanos , Risco , Incerteza
6.
Ned Tijdschr Geneeskd ; 1622018 Jun 07.
Artigo em Holandês | MEDLINE | ID: mdl-30040303

RESUMO

OBJECTIVE: To assess the accuracy of patients' perceptions of the risks associated with localised prostate cancer treatments (radical prostatectomy [RP], radiotherapy [RT], and active surveillance [AS]), and to identify correlates of misperceptions. PATIENTS AND METHODS: We used baseline data (questionnaires completed after treatment information was provided but before treatment) of 426 patients with newly diagnosed localised prostate cancer who participated (87% response rate) in a prospective, longitudinal, multicentre study. Patients' pretreatment perceptions of differences in adverse outcomes of treatments were compared to those based on the literature. We used univariate and multivariate linear regression to identify correlates of misperceptions. RESULTS: About two-thirds (68%, n = 211) of the patients did not understand that the risk of disease recurrence is comparable between RP and RT. More than half of the patients did not comprehend that RP patients are at greater risk of urinary incontinence (65%, n = 202) and erectile dysfunction (61%, n = 190), and less at risk of bowel problems (53%, n = 211) compared to RT patients. Many patients overestimated the risk of requiring definitive treatment following AS (45%, n = 157) and did not understand that mortality rates following AS, RP, and RT are comparable (80%, n = 333). Consulting a radiotherapist or a clinical nurse specialist was positively associated with, and emotional distress was negatively associated with, better understanding of the risks (P < 0.05), although effect sizes were small. CONCLUSION: Prior to choosing treatment, most patients with prostate cancer poorly understood the differences in treatment risks. Greater efforts should be made to better understand why these misperceptions occur and, most importantly, how they can be corrected.


Assuntos
Atitude Frente a Saúde , Prostatectomia/efeitos adversos , Neoplasias da Próstata/psicologia , Neoplasias da Próstata/terapia , Radioterapia/efeitos adversos , Conduta Expectante/métodos , Idoso , Correlação de Dados , Disfunção Erétil/etiologia , Disfunção Erétil/psicologia , Indicadores Básicos de Saúde , Humanos , Estudos Longitudinais , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia/psicologia , Estudos Prospectivos , Antígeno Prostático Específico , Prostatectomia/psicologia , Radioterapia/psicologia , Inquéritos e Questionários , Incontinência Urinária/etiologia , Incontinência Urinária/psicologia
7.
Clin Otolaryngol ; 43(3): 828-834, 2018 06.
Artigo em Inglês | MEDLINE | ID: mdl-29281765

RESUMO

OBJECTIVES: This study aimed to examine the psychosocial health status of adult cochlear implant (CI) users, compared to that of hearing aid (HA) users, hearing-impaired adults without hearing aids and normally hearing adults. DESIGN: Cross-sectional observational study, using both self-reported survey data and a speech-in-noise test. SETTING: Data as collected within the Netherlands Longitudinal Study on Hearing (NL-SH) between September 2011 and June 2016 were used. PARTICIPANTS: Data from 1254 Dutch adults (aged 23-74), selected in a convenience sample design, were included for analyses. MEAN OUTCOME MEASURES: Psychosocial health measures included emotional and social loneliness, anxiety, depression, distress and somatisation. Psychosocial health, hearing status, use of hearing technology and covariates were measured by self-report; hearing ability was assessed through an online digit triplet speech-in-noise test. RESULTS: After adjusting for the degree of hearing impairment, HA users (N = 418) and hearing-impaired adults (N = 247) had significantly worse scores on emotional loneliness than CI users (N = 37). HA users had significantly higher anxiety scores than CI users in some analyses. Non-significant differences were found between normally hearing (N = 552) and CI users for all psychosocial outcomes. CONCLUSIONS: Psychosocial health of CI users is not worse than that of hearing-impaired adults with or without hearing aids. CI users' level of emotional loneliness is even lower than that of their hearing-impaired peers using hearing aids. A possible explanation is that CI patients receive more professional and family support, and guidance along their patient journey than adults who are fitted with hearing aids.


Assuntos
Implantes Cocleares , Emoções , Perda Auditiva/psicologia , Qualidade de Vida , Comportamento Social , Adulto , Idoso , Estudos de Casos e Controles , Estudos de Coortes , Estudos Transversais , Feminino , Nível de Saúde , Perda Auditiva/terapia , Humanos , Masculino , Pessoa de Meia-Idade , Países Baixos , Adulto Jovem
8.
Colorectal Dis ; 19(4): 372-377, 2017 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-27611011

RESUMO

AIM: The optimal diet for uncomplicated diverticulitis is unclear. Guidelines refrain from recommendation due to lack of objective information. The aim of the study was to determine whether an unrestricted diet during a first acute episode of uncomplicated diverticulitis is safe. METHOD: A prospective cohort study was performed of patients diagnosed with diverticulitis for the first time between 2012 and 2014. Requirements for inclusion were radiologically proven modified Hinchey Ia/b diverticulitis, American Society of Anesthesiologists class I-III and the ability to tolerate an unrestricted diet. Exclusion criteria were the use of antibiotics and suspicion of inflammatory bowel disease or malignancy. All included patients were advised to take an unrestricted diet. The primary outcome parameter was morbidity. Secondary outcome measures were the development of recurrence and ongoing symptoms. RESULTS: There were 86 patients including 37 (43.0%) men. All patients were confirmed to have taken an unrestricted diet. There were nine adverse events in seven patients. These consisted of readmission for pain (five), recurrent diverticulitis (one) and surgery (three) for ongoing symptoms (two) and Hinchey Stage III (one). Seventeen (19.8%) patients experienced continuing symptoms 6 months after the initial episode and 4 (4.7%) experienced recurrent diverticulitis. CONCLUSION: The incidence of complications among patients taking an unrestricted diet during an initial acute uncomplicated episode of diverticulitis was in line with that reported in the literature.


Assuntos
Dieta/métodos , Doença Diverticular do Colo/dietoterapia , Diverticulite/dietoterapia , Doença Aguda , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Recidiva , Índice de Gravidade de Doença , Resultado do Tratamento
9.
Dig Surg ; 33(3): 197-202, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-26889879

RESUMO

OBJECTIVE: This study aims to investigate the current opinion of gastroenterologists and surgeons on treatment strategies for patients, with recurrences or ongoing complaints of diverticulitis. BACKGROUND: Treatment of recurrences and ongoing complaints remains a point of debate. No randomized trials have been published yet and guidelines are not uniform in their advice. DESIGN: A web-based survey was conducted among gastroenterologists and GE-surgeons. Questions were aimed at the treatment options for recurrent diverticulitis and ongoing complaints. RESULTS: In total, 123 surveys were filled out. The number of patients with recurrent or ongoing diverticulitis who were seen at the outpatient clinic each year was 7 (0-30) and 5 (0-115) respectively. Surgeons see significantly more patients on an annual basis 20 vs. 15% (p = 0.00). Both surgeons and gastroenterologists preferred to treat patients in a conservative manner using pain medication and lifestyle advise (64.4 vs. 54.0, p = 0.27); however, gastroenterologists would treat patients with mesalazine medication, which is significantly more (28%, p = 0.04) than in the surgical group. Surgeons are inclined more towards surgery (31.5%, p = 0.02). CONCLUSIONS: Both surgeons and gastroenterologists prefer to treat recurrent diverticulitis and ongoing complaints in a conservative manner. Quality of life, the risk of complications and the viewpoint of the patient are considered important factors in the decision to resect the affected colon.


Assuntos
Atitude do Pessoal de Saúde , Diverticulite/cirurgia , Gastroenterologia , Padrões de Prática Médica , Especialidades Cirúrgicas , Analgésicos/uso terapêutico , Tratamento Conservador , Diverticulite/terapia , Fidelidade a Diretrizes , Humanos , Estilo de Vida , Países Baixos , Participação do Paciente , Guias de Prática Clínica como Assunto , Qualidade de Vida , Recidiva , Inquéritos e Questionários
10.
J Neuroimmunol ; 286: 1-4, 2015 Sep 15.
Artigo em Inglês | MEDLINE | ID: mdl-26298317

RESUMO

Multifocal motor neuropathy (MMN) and progressive muscular atrophy (PMA) are associated with IgM monoclonal gammopathy or the presence IgM anti-GM1-antibodies. To further investigate the pathophysiology of MMN and PMA we determined concentrations of 16 mainly B-cell associated inflammatory markers in serum from 25 patients with MMN, 55 patients with PMA, 25 patients with amyotrophic lateral sclerosis (ALS) and 50 healthy controls. Median serum concentrations of the 16 tested cytokines and chemokines were not significantly increased in patients with MMN or patients with PMA, irrespective of the presence of IgM monoclonal gammopathy or high IgM anti-GM1 antibodies. These results argue against a systemic B-cell mediated immune response underlying the pathogenesis of MMN and PMA.


Assuntos
Esclerose Lateral Amiotrófica/sangue , Citocinas/sangue , Atrofia Muscular Espinal/sangue , Polineuropatias/sangue , Adulto , Idoso , Idoso de 80 Anos ou mais , Autoanticorpos , Fator Ativador de Células B/metabolismo , Distribuição de Qui-Quadrado , Ensaio de Imunoadsorção Enzimática , Feminino , Gangliosídeo G(M1)/imunologia , Humanos , Imunoglobulina M/sangue , Masculino , Pessoa de Meia-Idade , Estatísticas não Paramétricas
11.
Int J Colorectal Dis ; 30(5): 665-71, 2015 May.
Artigo em Inglês | MEDLINE | ID: mdl-25739887

RESUMO

PURPOSE: An important factor in the decision to perform laparoscopic sigmoid resection for patient suffering from recurrent and ongoing diverticulitis is quality of life (QoL). It is unknown whether quality of life relates to the severity of diverticulitis as seen in the resected colonic segment. The aim of this study is to analyze histopathological findings of patients suffering from recurrent or ongoing diverticulitis and their QoL before and after surgery in order to improve patient outcome prediction. METHODS: A cohort of consecutive patients with diverticulitis between January 2010 and April 2014 was analyzed. All patients were scheduled for surgery and had at least three episodes of diverticulitis or more within the last 2 years or experienced ongoing complaints for at least 3 months or more and confirmation by a radiologist. We compared QoL questionnaires, to known histopathological entities. RESULTS: For this study, 54 consecutive patients were included, 15 (27.8%) men and 39 (72.2%) women. A marked difference in quality of life before and after surgery for patients having a more severe histopathological entity was not found (p = 0.83). However, a clinically relevant higher VAS score 6 months after surgery was shown in patients with peritonitis. Furthermore, these patients had more fibrosis in the histopathological samples. CONCLUSION: In conclusion, even though a relation between the different pathological entities and QoL could not be determined, patients with diverticulitis and concomitant microscopic peritonitis had significantly more fibrosis and suffered from a higher VAS scores 6 months after surgery.


Assuntos
Colo Sigmoide/patologia , Doença Diverticular do Colo/patologia , Doença Diverticular do Colo/cirurgia , Peritonite/patologia , Qualidade de Vida , Adulto , Fatores Etários , Idoso , Biópsia por Agulha , Estudos de Coortes , Colectomia/efeitos adversos , Colectomia/métodos , Colo Sigmoide/cirurgia , Colonoscopia/métodos , Doença Diverticular do Colo/mortalidade , Feminino , Seguimentos , Humanos , Imuno-Histoquímica , Masculino , Pessoa de Meia-Idade , Países Baixos , Medição da Dor , Dor Pós-Operatória/fisiopatologia , Peritonite/etiologia , Valor Preditivo dos Testes , Estudos Prospectivos , Medição de Risco , Índice de Gravidade de Doença , Fatores Sexuais , Resultado do Tratamento
12.
Int J Endocrinol ; 2012: 810926, 2012.
Artigo em Inglês | MEDLINE | ID: mdl-23056044

RESUMO

Aim. We aimed to determine if sitagliptin added to standard postoperative standardized sliding-scale insulin regimens improved blood glucose. Methods. A prospective, randomized, double-blind, placebo-controlled pilot study was conducted in diabetic cardiac surgery patients. Patients received sitagliptin or placebo after surgery for 4 days. The primary endpoint was to estimate the effect of adjunctive sitagliptin versus placebo on overall mean blood glucose in the 4-day period after surgery. Results. Sixty-two patients participated. Repeated measures tests indicated no significant difference between the groups in the overall mean blood glucose level with a mean of 147.2 ± 4.8 mg/dL and 153.0 ± 4.6 mg/dL for the test and the control group, respectively (P = 0.388). Conclusions. Sitagliptin added to normal postoperative glucose management practices did not improve overall mean blood glucose control in diabetic patients in the postoperative setting.

13.
JBR-BTR ; 90(5): 368-76, 2007.
Artigo em Inglês | MEDLINE | ID: mdl-18085191

RESUMO

AIM: To define an imaging prototype of Ewing's sarcoma (ES). MATERIALS AND METHODS: Sixty-four patients with a histopathologically and/or genetically proven diagnosis of ES were analyzed for clinical parameters (age, gender and location), radiographic and CT appearance (distribution, matrix, margins, periosteal reaction, articular extension, cortical reaction and the presence of a pathologic fracture). Size, local extension, signal intensity, degree and pattern of enhancement, and the presence of skip metastases were evaluated on MRI. Distant metastases were recorded on bone scintigraphy and chest CT scan. RESULTS: Patient's age ranged between 7-67 (mean 17.9). Male/female ratio was 2.4/1. Location in the pelvis was most frequent (31%), followed by the femur (20%) and tibia (11%). Most tumors were mixed lytic-sclerotic (75%), and purely lytic in 25%. Plain films and CT scan showed a spiculated periosteal reaction in 50%. A Codman's triangle was seen in 27%. Articular extension was difficult to assess on radiographs. Cortical permeation and destruction is seen in respectively 31 and 42%, whereas cortical thickening is seen in 20%. Pathologic fracture occurred in 7.8%. MRI showed a large mass, with a soft tissue component of more than 50% in 67%. Degree and pattern of enhancement pattern was variable. Signal intensity on T1- and T2-WI was non-specific. Joint involvement was seen in 23%. Isolated involvement of the soft tissue (extraskeletal ES) was seen in 1.5%. Skip metastases at initial presentation were present at initial presentation in 14% and distant metastases in 22%. CONCLUSIONS: ES occurs in young patients. On radiographs/CT, 37.5% are located in the axial skeleton and 62.5% in the peripheral skeleton. ES is mostly mixed sclerotic-lytic. A spiculated periosteal reaction is most frequent. The most characteristic finding on MRI is the presence of a large soft tissue mass.


Assuntos
Neoplasias Ósseas/patologia , Sarcoma de Ewing/patologia , Adolescente , Adulto , Idoso , Criança , Feminino , Humanos , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Metástase Neoplásica , Tomografia Computadorizada de Emissão , Tomografia Computadorizada por Raios X
14.
Ann Pharmacother ; 41(3): 427-32, 2007 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-17311834

RESUMO

BACKGROUND: Patients with left-ventricular dysfunction have an increased risk of developing heart failure after coronary artery bypass graft (CABG) surgery. Therapies to maintain cardiac output in such patients warrant investigation. Nesiritide is unique among intravenous medications used to manage heart failure. It mediates natriuresis and vasodilation and suppresses the reninangiotensin-aldosterone axis. Nesiritide may attenuate the body's neurohormonal response to myocardial stretch after CABG and provide clinical benefit in the immediate postoperative period. OBJECTIVE: To determine whether perioperative infusion of nesiritide improves clinical outcomes compared with milrinone therapy. METHODS: A prospective, open-label, randomized controlled trial was conducted in 40 consecutive hemodynamically stable patients with ejection fractions 35% or less undergoing CABG surgery. Patients were randomized to receive either an intraoperative bolus of nesiritide or milrinone followed by a 24 hour infusion of each agent. Length of postoperative intensive care unit stay was the primary outcome variable evaluated. Incidence of postoperative heart failure, 30 day readmission rates, mortality, and other clinical parameters were also compared. RESULTS: Patients receiving nesiritide had a mean +/- SD postoperative intensive care unit stay of 50.6 +/- 46.8 hours compared with 44.1 +/- 23.5 hours in those receiving milrinone (p = 0.578). Incidence of postoperative heart failure was also not significantly different between the drugs (p = 0.259). Thirty day follow-up confirmed no difference in hospital readmission rates between nesiritide and milrinone (p = 0.661). No differences in mortality were observed during hospitalization or 30 days of follow-up. CONCLUSIONS: Nesiritide does not decrease postoperative intensive care unit stay or other clinical parameters compared with milrinone in high-risk patients with hemodynamically stable left-ventricular function undergoing CABG surgery.


Assuntos
Baixo Débito Cardíaco/prevenção & controle , Cardiotônicos/uso terapêutico , Ponte de Artéria Coronária , Milrinona/uso terapêutico , Natriuréticos/uso terapêutico , Peptídeo Natriurético Encefálico/uso terapêutico , Adulto , Idoso , Idoso de 80 Anos ou mais , Baixo Débito Cardíaco/epidemiologia , Feminino , Hospitais Filantrópicos , Humanos , Unidades de Terapia Intensiva/estatística & dados numéricos , Tempo de Internação/estatística & dados numéricos , Masculino , Pessoa de Meia-Idade , Assistência Perioperatória
15.
Eur Heart J ; 23(23): 1841-8, 2002 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-12445532

RESUMO

AIMS: To investigate the relationship between fibrinogen and stressful work conditions, where perceived strain is defined by the simultaneous presence of high psychological demands and low control, according to Karasek's Demand/Control/(Social Support) model. METHODS AND RESULTS: A cross-sectional study was realized between 1994 and 1998 in 24 Belgian enterprises, on 16335 male and 5084 female middle-aged workers of different Belgian companies participating in the Belstress study. This study confirmed the well-documented bivariate relationship between plasma fibrinogen levels and gender, age, educational level, smoking, obesity, physical activity, alcohol consumption, total cholesterol, HDL-cholesterol, arterial hypertension and diabetes. No independent multivariate relationship was observed between job control, psychological job demands or social support at work and plasma fibrinogen, but after stratification a positive association (P< or =0.05) was observed between psychological job demands and plasma fibrinogen for males in the lowest educational level. Moreover a positive statistically significant association between job strain and plasma fibrinogen was observed in males but not in females. After stratification for educational level this association remained significant for males especially in the lowest educational level (P< or =0.001) and became significant for females in the middle educational level. CONCLUSIONS; As suggested in our study and others, plasma fibrinogen could be one of the potential mediators explaining the relationship between job stress and coronary heart disease.


Assuntos
Doença das Coronárias/sangue , Fibrinogênio/metabolismo , Doenças Profissionais/sangue , Estresse Psicológico/sangue , Adulto , Consumo de Bebidas Alcoólicas/sangue , Bélgica/epidemiologia , Biomarcadores/sangue , HDL-Colesterol/sangue , Doença das Coronárias/epidemiologia , Doença das Coronárias/etiologia , Estudos Transversais , Emprego/estatística & dados numéricos , Feminino , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Doenças Profissionais/epidemiologia , Doenças Profissionais/etiologia , Estudos Prospectivos , Fatores Sexuais , Apoio Social , Estresse Psicológico/epidemiologia , Estresse Psicológico/etiologia
16.
Infect Immun ; 68(8): 4658-65, 2000 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-10899870

RESUMO

The adherence of 58 nontypeable Haemophilus influenzae isolates obtained from patients with otitis media or chronic obstructive pulmonary disease (COPD) and obtained from the throats of healthy individuals to Chang and NCI-H292 epithelial cells was compared. Otitis media isolates, but not COPD isolates, adhered significantly more to both cell lines than did throat isolates. Since high-molecular-weight (HMW) proteins are major adhesins of nontypeable H. influenzae, the isolates were screened for HMW protein expression by Western blotting with two polyclonal sera and PCR with hmw-specific primers. Twenty-three of the 32 adhering isolates (72%) and only 1 of the 26 nonadherent strains were HMW protein or hmw gene positive. Among the 32 isolates adhering to either cell line, 5 different adherence patterns were distinguished based on the inhibiting effect of dextran sulfate. Using H. influenzae strain 12 expressing two well-defined HMW proteins (HMW1 and HMW2) and its isogenic mutants as a reference, we observed HMW1-like adherence to both cell lines for 16 of the 32 adherent isolates. Four others showed HMW2-like adherence to NCI-H292. Of the three other patterns of adherence, one probably also involved HMW protein. Screening of the isolates with six HMW-specific monoclonal antibodies in a whole-cell enzyme-linked immunosorbent assay showed that the HMW proteins of COPD isolates and carrier isolates were more distinct from the HMW proteins from H. influenzae strain 12 than those from otitis media isolates. Characterization of the HMW protein of a COPD isolate by adherence and DNA sequence analysis showed that despite large sequence diversity in the hmwA gene, probably resulting in the antigenic differences, the HMW protein mediated the HMW2-like adherence of this strain.


Assuntos
Adesinas Bacterianas/genética , Aderência Bacteriana , Células Epiteliais/microbiologia , Infecções por Haemophilus/microbiologia , Haemophilus influenzae/classificação , Haemophilus influenzae/patogenicidade , Adulto , Idoso , Idoso de 80 Anos ou mais , Sequência de Aminoácidos , Proteínas de Bactérias/genética , Proteínas de Bactérias/imunologia , Técnicas de Tipagem Bacteriana , Portador Sadio/microbiologia , Criança , Clonagem Molecular , Genes Bacterianos , Haemophilus influenzae/genética , Humanos , Pneumopatias Obstrutivas/microbiologia , Pessoa de Meia-Idade , Dados de Sequência Molecular , Peso Molecular , Otite Média/microbiologia , Análise de Sequência de DNA , Homologia de Sequência de Aminoácidos , Células Tumorais Cultivadas
17.
Plant Mol Biol ; 28(3): 513-24, 1995 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-7632920

RESUMO

Chimaeric PCaMV35Scry genes direct in tobacco mesophyll protoplasts mRNA levels of less than one transcript per cell. We provide evidence that this low cytoplasmic cry IA(b) mRNA level is not due to a rapid turnover but rather results from a marginal import flow of cry messenger into the cytoplasm. Run-on assays indicate that the frequency of transcription initiation is not limiting. However, the cry precursor mRNA carries at least three regions that are recognized as introns. The absence of high cytoplasmic levels of spliced cry mRNAs suggests that these mRNAs are unstable and/or not efficiently made. Point mutations in the 5' splice site of the most distal intron allows high accumulation levels of the full-length mRNA. This implies that the inefficient formation of full-size mRNA is a major cause of the low expression level of chimaeric cry IA(b) genes in tobacco.


Assuntos
Proteínas de Bactérias/genética , Toxinas Bacterianas/genética , Endotoxinas/genética , Nicotiana/genética , Plantas Tóxicas , RNA Mensageiro/genética , Toxinas de Bacillus thuringiensis , Sequência de Bases , Primers do DNA , DNA Bacteriano , Proteínas Hemolisinas , Dados de Sequência Molecular , Processamento Pós-Transcricional do RNA , Splicing de RNA , RNA Mensageiro/metabolismo , RNA de Plantas/genética , RNA de Plantas/metabolismo , Transcrição Gênica/genética
18.
J Pediatr Oncol Nurs ; 7(3): 109-14, 1990 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-2206472

RESUMO

In a large pediatric teaching hospital located in the southwestern part of the United States, few nurses had participated in a formal program that taught the knowledge and skills required for the nurse to care for the patient receiving chemotherapy. In order to enhance the necessary clinical competency of the nursing staff, a Chemotherapy Certification Course was developed for this institution. In reviewing the literature there was minimal information on how to develop such a program. The purpose of this article is to describe the development of this course with the intent that it can serve as a guide in facilitating and implementing such a course in other institutions. As more hospitals adopt institutional certification as a form of continuing education in cancer nursing, perhaps the gap between knowledge and practice will decrease. The institutional certification course will be a significant step toward improving the level of practice of nurses caring for patients receiving chemotherapy. The goal of promoting professional competence will benefit the nurse, the institution, and patients and their families.


Assuntos
Antineoplásicos/uso terapêutico , Certificação , Educação Continuada em Enfermagem , Neoplasias/tratamento farmacológico , Recursos Humanos de Enfermagem Hospitalar/educação , Antineoplásicos/efeitos adversos , Criança , Currículo , Hospitais Pediátricos , Hospitais de Ensino , Humanos
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