Reducing the use of carcinogens: the Massachusetts experience.

Toxics use reduction (TUR) is one part of a comprehensive cancer prevention strategy. TUR emphasizes reducing the use of cancer-causing chemicals by improving manufacturing processes and identifying and adopting safer alternatives. This analysis draws on 20 years of data collected from industries reporting to the Massachusetts Toxics Use Reduction Act (TURA) program to assess trends in the use and release of chemicals associated with cancer. We used a master list of known and suspected carcinogens developed from authoritative sources and a list of carcinogens grouped by their association with 11 cancer sites to analyze trends in use and release of chemicals by industrial facilities reporting to the TURA program from 1990 to 2010. The trend analysis shows that reported use and releases of carcinogens by these Massachusetts companies have decreased dramatically over time. Reported use declined 32% from 1990 to 2010, and reported releases declined 93% from 1991 to 2010 (1991 is when additional industrial sectors, including electric utilities, were phased into the program). Particularly large reductions were achieved in the use of trichloroethylene, perchloroethylene and cadmium and cadmium compounds. The analysis of groups of chemicals associated with specific cancer sites shows similar trends. Important opportunities for further reductions in many carcinogens, including formaldehyde, hexavalent chromium, and a variety of halogenated compounds are identified. Continued work to minimize the use of carcinogens can help to reduce the burden of cancer in Massachusetts and elsewhere.

Hospital patients' reports of medical errors and undesirable events in their health care.

OBJECTIVE: To investigate hospital patients' reports of undesirable events in their health care. DESIGN: Cross-sectional mixed methods design. PARTICIPANTS: A total of 80 medical and surgical patients (mean age 58, 56 male). INTERVENTION: Patients were interviewed post-discharge using a survey to assess patient reports of errors or problems in their care. Patients' medical records and notes were also reviewed. MAIN OUTCOME MEASURES: Frequency of health care process problems, medical complications and interpersonal problems, and patient willingness to report an undesirable event in their care. RESULTS: In total, 258 undesirable events were reported (rate of 3.2 per person), including 136 interpersonal problems, 90 medical complications and 32 health care process problems. Patients identified a number of events that were reported in the medical records (30 out of 36). In addition, patients reported events that were not recorded in the medical records. Patients were more willing (P < 0.05) to report undesirable events to a researcher (as in the present case) than to a local or national reporting system. CONCLUSION: Patients appear able to report undesirable events that occur in their health care management over and above those that are recorded in their medical records. However, patients appear more willing to report these incidents for the purpose of a study rather than to an established incident reporting system. Interventions aimed at educating and encouraging patients about incident reporting systems need to be developed in order to enhance this important contribution patients could make to improving patient safety.

Patients' and health care professionals' attitudes towards the PINK patient safety video.

RATIONALE, AIMS AND OBJECTIVES: Patients can play an important role in reducing health care harm. Finding strategies to encourage patients to take on an active role in issues related to the quality and safety of their care is therefore essential. The aim of this study was to examine patients' and health care professionals' attitudes towards a video aimed at promoting patient involvement in safety-related behaviours. METHOD: A within-subjects design was used where participants were required to complete a questionnaire pre and post screening of a patient safety video. Participants are 201 patients aged 19-103 years (mean 52) and 95 health care professionals aged 23-48 years (mean 32). Main outcome measures include (i) patients' willingness to participate and perceived importance in participating in safety-related behaviours; and (ii) health care professionals' willingness to support patient involvement. RESULTS: After watching the video patients elicited more positive attitudes towards asking doctors and nurses if they had washed their hands and notifying them about issues to do with personal hygiene. No significant effects were observed in relation to patients notifying staff if they have not received their medication or if they were in pain or feeling unwell. In relation to health care professionals, doctors and nurses were more willing to support patient involvement in asking about hand hygiene after they had watched the video. CONCLUSION: Video may be effective at changing patients' and health care professionals' attitudes towards patient involvement in some, but not all safety-related behaviours. Our findings suggest video may be most effective at encouraging involvement in behaviours patients are less inclined to participate in and health care professionals are less willing to support.

How developing nations can protect children from hazardous chemical exposures while sustaining economic growth.

Increasing worldwide use of chemicals, including heavy metals used in industry and pesticides used in agriculture, may produce increases in chronic diseases in children unless steps are taken to manage the production, use, trade, and disposal of chemicals. In 2020 the developing world will account for 33 percent of global chemical demand and 31 percent of production, compared with 23 percent and 21 percent, respectively, in 1995. We describe present and potential costs of environmental exposures and discuss policy options to protect future generations of children in a sustainable development context. Specifically, we describe the principles of sound chemicals management, as follows: precaution, or the use of cost-effective measures to prevent potentially hazardous exposures before scientific understanding is complete; the right to know, or informing the public--especially vulnerable groups--in a timely fashion about the safe use of chemicals and any releases of chemicals into the environment; pollution prevention, or preventing the use of hazardous chemicals and the production of pollutants, rather than focusing on managing wastes; internalization of environmental and health costs, or ensuring that the consequences of exposures are reflected in the price of chemicals through such approaches as "polluter pays"; and use of best available scientific information in making decisions such as what chemicals to allow into the market. We recommend that industrializing nations in particular employ these principles to prevent disease among their populations while at the same time minimizing the risk to their own economic development.

Higher hazard substances under The Massachusetts Toxics Use Reduction Act: lessons from the first four years.

The Massachusetts Toxics Use Reduction Act (TURA) has achieved significant reductions in toxic chemical use in Massachusetts, using a combination of regulatory and voluntary measures. Historically the program has regulated only users of relatively large quantities of toxic chemicals, with services provided to facilities of all sizes on a voluntary basis. Statutory amendments adopted in 2006 created an authority to designate Higher and Lower Hazard Substances (HHS and LHS). The HHS designation extends TURA program requirements to smaller quantity chemical users. This article reports on experiences from the first four years of implementing this new authority. A case study of trichloroethylene is provided as an example. The article also discusses steps taken to regulate n-propyl bromide, a drop-in substitute for TCE that is minimally regulated at the federal level. TURA program experiences may be of interest to other jurisdictions that are working to reach small-quantity chemical users, and to categorize and prioritize chemicals.

Systemic leukofiltration does not attenuate pulmonary injury after cardiopulmonary bypass.

Pulmonary injury mediated by activated leukocytes is a recognized complication of cardiopulmonary bypass. The aim of this paper is to systematically analyze the effects of systemic leukofiltration within the cardiopulmonary bypass circuit on pulmonary injury and related clinical outcomes. We performed a systematic search to identify randomized controlled trials reporting on the effects of systemic leukofiltration on respiratory parameters. Random effect meta-analytical techniques were applied to identify differences in outcomes between the two groups. Sensitivity and subgroup analyses were undertaken to evaluate study heterogeneity. Incorporating 995 patients, 21 studies satisfied the inclusion criteria. Systemic leukofiltration significantly increased the PaO2/FiO2 ratio within 12 hours of bypass cessation, (weighted mean difference (WMD), 25.97; 95% confidence interval (CI), 3.41-48.53; p = 0.02) but this effect was lost by 24 hours (WMD, 12.98; 95% CI, -7.93-33.89; p = 0.22). Leukofiltration significantly reduced the duration of ventilatory support postoperatively (WMD, -2.11 hours; 95% CI, -0.65 to -3.58; p = 0.005), but had no impact on postoperative chest infection, intensive care length of stay or hospital length of stay. The heterogeneity of the included studies was high, due to poor quality study design and failure to include patients at high risk of pulmonary complications. Systemic leukofiltration may attenuate bypass-related lung injury in the early postoperative period, but this does not seem to translate to clinically significant differences in outcomes.

Does systemic leukocyte filtration affect perioperative hemorrhage in cardiac surgery? A systematic review and meta-analysis.

Cardiopulmonary bypass causes a systemic inflammatory reaction. Activation of leukocytes is an important part of this process, and is known to directly contribute to the development of postoperative coagulopathy, and thus hemorrhage. The removal of leukocytes from the cardiopulmonary bypass circulation, using specialized filters, has been proposed as one method for attenuating this inflammatory response. However, there is no consensus on its effectiveness. We used meta-analytical techniques to systematically assess the literature reporting on the potential effect of systemic leukofiltration on perioperative hemorrhage. Random effects modeling was used to calculate overall estimate, and heterogeneity was assessed. Systemic leukofiltration made no significant impact on chest tube drainage in the first 24 hours (weighted mean difference [WMD], x23.9 ml; 95% confidence interval [CI], x95.48-47.61; p = 0.51) or on the total packed red cell transfusion requirements of each patient (WMD, 7.84 ml; 95% CI, x80.13-95.81; p = 0.86). The studies performed in this area thus far are highly heterogeneous, due in part to relatively poor-quality design and inadequate matching of their study groups. Although further high-quality trials on systemic leukofiltration may be appropriate, other strategies to reduce the coagulopathy associated with cardiopulmonary bypass should be sought and evaluated.

Skeletonization of radial and gastroepiploic conduits in coronary artery bypass surgery.

The use of a skeletonized internal thoracic artery in coronary artery bypass graft surgery has been shown to confer certain advantages over a traditional pedicled technique, particularly in certain patient groups. Recent reports indicate that radial and gastroepiploic arteries can also be harvested using a skeletonized technique. The aim of this study is to systematically review the available evidence regarding the use of skeletonized radial and gastroepiploic arteries within coronary artery bypass surgery, focusing specifically on it's effect on conduit length and flow, levels of endothelial damage, graft patency and clinical outcome. Four electronic databases were systematically searched for studies reporting the utilisation of the skeletonization technique within coronary revascularisation surgery in humans. Reference lists of all identified studies were checked for any missing publications. There appears to be some evidence that skeletonization may improve angiographic patency, when compared with pedicled vessels in the short to mid-term. We have found no suggestion of increased complication rates or increased operating time. Skeletonization may increase the length of the conduit, and the number of sequential graft sites, but no clear clinical benefits are apparent. Our study suggests that there is not enough high quality or consistent evidence to currently advocate the application of this technique to radial or gastroepiploic conduits ahead of a traditional pedicled technique.

The surgical care practitioner: a feasible alternative. Results of a prospective 4-year audit at St Mary's Hospital Trust, London.

INTRODUCTION: Surgical care practitioners (SCPs) are an expanding group of professionals, drawn from nursing and the allied health professions. Amongst other functions, SCPs can provide a range of surgical procedures including a 'minor surgical' service. The aim of this study was to audit the volume and outcomes related to the SCP service at St Mary's since its inception. PATIENTS AND METHODS: All prospectively collected data regarding SCP-managed patients between 2001 and 2005 were retrospectively audited. Volume, case mix, waiting times, complications and patient satisfaction were recorded and evaluated. RESULTS: In this 4-year period, the SCP performed 381 minor operative cases (year 1 to year 4: 32, 74, 114 and 161 cases, respectively). These included excision of lipomas, sebaceous cysts and suspicious naevi under local anaesthesia and 7 similar cases under general anaesthetic. There were 11 minor postoperative complications which included 7 wound infections which were all resolved with a short course of oral antibiotics, 2 seromas of which one needed aspiration under local anaesthetic and one minor wound dehiscence which was re-sutured the same day. Overall, 71% were seen within 1 month of referral, 16% within 1-2 months, 3% within 3 months and 10% within 6 months. In addition, 59% were seen and treated within 20 min of their appointed time, 15% within 30-60 min and 24% within 1-2 h. The 3-month patient perspective audit carried out between May and July 2004 included 59 completed patient questionnaires following surgery; 100% were totally satisfied with the care that they received; 98% were happy to see the SCP and 98% documented that they would recommend the SCP to others. CONCLUSIONS: The 4-year period of using an SCP at St Mary's shows that it is feasible and safe for minor operative procedures, that it contributes positively to waiting times and is acceptable to patients.

The effects of various leukocyte filtration strategies in cardiac surgery.

It is known that cardiopulmonary bypass causes an inflammatory reaction with an associated morbidity and mortality. Several anti-inflammatory strategies have been implemented to reduce this response, including leukocyte removal from the circulation using specialised filters. The aim of this study is to systematically review the available evidence on leukocyte filtration in cardiac surgery, focusing on its effect on systemic inflammation and whether this has influenced clinical outcomes. Five electronic databases were systematically searched for studies reporting the effect of leukocyte filtration at any point within the cardiopulmonary bypass circuit in humans. Reference lists of all identified studies were checked for any missing publications. Two authors independently extracted the data from the included studies. Whilst systemic leukodepleting filters do not appear to consistently lower leukocyte counts, they may preferentially remove activated leukocytes. Small improvements in early post-operative lung function in patients receiving systemic leukodepletion have been reported, but this does not lead to reduced hospital stay or decreased mortality. There is substantial evidence that cardioplegic leukocyte filtration attenuates the reperfusion injury at a cellular level, but this has not been translated into clinical improvements. Finally, whilst various strategies involving multiple leukocyte filters, or the incorporation of pharmacological agents into leukocyte-depleting protocols have been evaluated, the current available results are not conclusive. Our study suggests that there is not enough high quality or consistent evidence to draw guidelines regarding the use of leukocyte-depleting filters within routine cardiac surgical practice.

Surgery for complex coarctation of the aorta.

The application of improved surgical techniques to correct coarctation in the neonate and infant may in the longterm reduce the incidence of recoarctation in the adult. In addition, in many cases, catheter-based intervention offers an alternative to reoperation and the role of catheter-based intervention is likely to be extended with the introduction of improved technology. However, surgery is likely to be required in coarctation and recoarctation in the adult in some cases, particularly those with hypoplasia of the aortic arch, aneurysms of the ascending aorta and those with intracardiac pathology. Operation for primary coarctation in the adult can be performed through a left thoracotomy without significant postoperative morbidity. However, this is not the case with recoarctation where reoperation through a left thoracotomy has resulted in a high incidence of postoperative complications including residual coarctation, false aneurysm and recurrent laryngeal nerve palsy. Repair through a median sternotomy offers an alternative surgical approach to recoarctation which avoids these complications and allows concomitant procedures for problems associated with arteriopathy, aortic valve disease and other associated intracardiac anomalies. The approach to coarctation and recoarctation in the adult should be tailored to individual patients and made after careful discussion with interventional cardiologists.