Mesothelioma incidence projections in South East England

We estimated the past and future age-standardised incidence rates of mesothelioma by birth cohort and by period of diagnosis in South East England. We extracted data on patients diagnosed with mesothelioma (International Classification of Diseases-10 C45) between 1960 and 2009 from the Thames Cancer Registry. We calculated the age-standardised incidence rates using the European standard population. We used age-cohort and age-period modelling to estimate the age-specific incidence rates for the 1900 to 1950 birth cohorts and the 1935 to 2034 calendar periods. A much more pronounced increase in mesothelioma incidence between 1972 and 2007 was observed in males than in females. In both sexes, the incidence rates increased in successive generations up to the 1945 birth cohort. Projection of rates in the future showed an increase in incidence in males until 2022 and a decrease thereafter. Among females, the incidence rate was predicted to increase gradually until reaching its maximum around 2027, and to remain stable thereafter. The occurrence of mesothelioma is closely linked to occupational exposure to asbestos in the 1960s and 1970s and, due to the long latency period, the incidence of mesothelioma is projected to increase until the 2020s.     

Citrate anticoagulation abolishes degranulation of polymorphonuclear cells and platelets and reduces oxidative stress during haemodialysis.

BACKGROUND: During haemodialysis (HD), polymorphonuclear cells (PMNs) and platelets are activated and release various granule products, including myeloperoxidase (MPO) and platelet factor 4 (PF4). MPO triggers the generation of reactive oxygen species, leading to irreversible protein, carbohydrate and lipid modification. PF4 probably also contributes to oxidative stress. As previously shown, HD-induced PMN degranulation is almost completely abolished during citrate anticoagulation, most probably due to its calcium chelation ability. METHODS: In the present study, apart from HD-induced PMN and platelet degranulation, oxidative stress was analysed during three modes of anticoagulation. Heparin, dalteparin and citrate (HDhep, HDdal and HDcit) were compared in a randomized, crossover fashion in eight chronic HD patients. Multiple blood samples were taken during the third HD session of each modality, from both the afferent and efferent line. Besides the degranulation markers MPO and PF4, various markers of oxidative stress were measured, including oxidized low-density lipoprotein (ox-LDL), malondialdehyde (MDA) and carboxymethyllysine (CML). RESULTS: During HDhep and HDdal, marked degranulation was observed shortly after the start of HD. In contrast, during HDcit, PF4 and MPO levels remained unaltered, suggesting no release at all. After 1 week of HDcit, ox-LDL levels were markedly reduced [median 26% (3-65%), P=0.01], if compared with HDhep and HDdal. As regards MDA and CML, no differences were found. CONCLUSIONS: This study shows first, that HD-induced PMN and platelet degranulation are early, most probably calcium-dependent processes and, secondly, that the formation of ox-LDL is clearly dependent on the type of anticoagulant applied.     

Neurologic outcome of surgical and conservative treatment of rheumatoid cervical spine subluxation: A systematic review

Objective

Rheumatoid arthritis commonly involves the upper cervical spine and can cause significant neurologic morbidity and mortality. However, there is no consensus on the optimal timing for surgical intervention: whether surgery should be performed prophylactically or once neurologic deficits have become apparent.

Methods

A systematic review of the literature was performed to analyze neurologic outcome (Ranawat) and survival time (Kaplan‐Meier) after surgical or conservative treatment using the MOOSE (Meta‐analysis Of Observational Studies in Epidemiology) and GRADE (Grading of Recommendations, Assessment, Development and Evaluation system) criteria.

Results

Twenty‐five observational studies were selected. No randomized controlled trials (RCTs) could be found. All of the studies had a high risk of bias. Twenty‐three studies reported the neurologic outcome after surgery for 752 patients. Neurologic deterioration rarely occurred in Ranawat I and II patients. Ranawat III patients did not fully recover. The 10‐year survival rates were 77%, 63%, 47%, and 30% for Ranawat I, II, IIIA, and IIIB, respectively. The Ranawat IIIB patients had a significantly worse outcome. Another 185 patients treated conservatively were described in 7 studies. Neurologic deterioration rarely occurred in Ranawat I patients, but was almost inevitable in Ranawat II, IIIA, and IIIB patients. The Kaplan‐Meier analysis showed a 10‐year overall survival rate of 40%.

Conclusion

There are no RCTs that compared surgery with conservative treatment. In observational studies, surgical neurologic outcomes were better than conservative treatment in all patients with cervical spine involvement, and in asymptomatic patients with no neurologic impairment (Ranawat I) the outcomes were similar; however, the evidence is weak. Survival time of surgical and conservative treatment could not be compared.     

Prevalence and characteristics of moral case deliberation in Dutch health care

The attention for Moral case deliberation (MCD) has increased over the past years. Previous research on MCD is often written from the perspective of MCD experts or MCD participants and we lack a more distant view to the role of MCD in Dutch health care institutions in general. The purpose of this paper is to provide an overview of the state of the art concerning MCD in the Netherlands. As part of a larger national study on clinical ethics support in the Netherlands, we will focus on the prevalence and characteristics of MCD in Dutch health. A mixed methods design was used in which we combined two survey questionnaires (sent to all health care institutions), two focus groups and 17 individual interviews with top managers or ethics support staff. The findings demonstrate that the prevalence of MCD is relatively high in Dutch health care (44 % has MCD), especially in mental health care (in which MCD is mentioned as present in the organization by 62 % of the respondents). Institutions with MCD differ from institutions without MCD concerning size, kind of problems and importance of ideological background. Characteristic of MCD is that it often exists for 3 years or more, has a high participation of health professionals and middle managers and is both organized scheduled as unscheduled. As well integration in existing policy as key persons emerge as important issues in relation to the positioning of MCD. We conclude that MCD is a part of an integrated ethics policy and serves as a (bottom up) catalyst for such an integrated ethics policy.     

Illness perceptions and quality of life in patients with chronic obstructive pulmonary disease.

This study aimed at identifying cognitive and emotional representations relevant for improving health care communication and quality of life (QoL) in patients with chronic obstructive pulmonary disease (COPD). One-hundred-seventy-one COPD outpatients completed questionnaires on illness perceptions and QoL. After controlling for the effects of age, pulmonary function, and dyspnea, patients with decreased attention to symptoms, with more positive beliefs about the effects and outcomes of their illness, and with less strong emotional reactions to the illness, had higher QoL scores. The results of this study are discussed in relation to the associations found in other illnesses.     

Can mupirocin prevent methicillin-resistant <Emphasis Type="Italic">Staphylococcus aureus</Emphasis> infections?

In a retrospective study, Dr Muller and colleagues have assessed the efficacy of mupirocin nasal ointment alongside hygienic measures in methicillin-resistant Staphylococcus aureus (MRSA)-positive patients admitted to the intensive care unit (ICU). Their findings, which suggest that intranasal mupirocin can prevent ICU-related MRSA infections, need confirmation in a well-designed clinical trial. In general: early identification, isolation and treatment of all MRSA carriers, including health care workers, and disinfection of contaminated environments, are the main 'ingredients' of an effective MRSA 'search and destroy' program.