Enhancing speech-language pathology head and neck cancer service provision in rural Australia: Using a plan, do, study, act approach

PURPOSE

People with head and neck cancer (HNC) require ongoing speech-language pathology (SLP) services into the post-acute recovery phase of care. However, there are recognised service inequities/barriers for people from rural areas who are unable to access SLP services locally, necessitating travel to metropolitan centres. This study implemented strategies to assist rural speech-language pathologists to work to full scope of practice and support post-acute rehabilitation services for people with HNC.

METHOD

The study involved five SLP departments within a rural health referral network (one tertiary cancer centre, four rural sites). It involved a Plan-Do-Study-Act (PDSA) method, across two six month cycles, to achieve implementation of a model to support local SLP delivery of HNC care. Data collected included service activity, consumer feedback from people accessing local care, staff perceptions of the model and changes to local SLP service capabilities.

RESULT

Staff identified four objectives for change across the two PDSA cycles including resource development, upskilling/training and improving communication, and handover processes. In cycle 1, multiple resources were developed such as an eLearning program for training and skill development. In cycle 2, a pilot trial of a shared-care model was implemented, which successfully supported a transfer of care to local services for eight people with HNC. The majority of consumers accessing HNC care locally were satisfied with the service and would recommend future people with HNC receive similar care.

CONCLUSION

The PDSA process supported development and implementation of a model enabling local speech-language pathologists to offer post-acute care for people with HNC. This model helps rural people with HNC to access care closer to home by supporting rural clinicians to work to full scope of practice.

211 ASSOCIATION OF PLASMA ANTIOXIDANTS AND COGNITIVE OUTCOMES IN NORTHERN IRISH MEN FROM PROSPECTIVE EPIDEMIOLOGICAL STUDY OF MYOCARDIAL INFARCTION (PRIME) STUDY

Background

Oxidative stress and chronic inflammation have been demonstrated to contribute to cognitive decline in older age and the development of neurodegenerative disorders. Antioxidants have been revealed to help mitigate the effects of the damage caused by oxidative stress and inflammation, but their relationship with cognitive decline is not yet fully understood. The aim of this study was to investigate the association between various plasma antioxidant levels and cognitive status in participants from the Prospective Epidemiological Study of Myocardial Infarction (PRIME) study.

Methods

10,600 men were recruited to the PRIME study between 1991-1993 and have been followed up across eleven time points. Baseline health and lifestyle characteristics were assessed, and plasma antioxidants were obtained and quantified. Baseline cognitive status was screened in 2000 using Mini-Mental State Examination (MMSE). Follow up assessment of cognitive status was performed in 2015 with MMSE and Addenbrooke’s Cognitive Examination-Revised (ACE-R) examinations.

Results

2,009 men underwent cognitive assessment in 2000 and 873 men in 2015. At both 2000 and 2015 with the use of the MMSE and ACE-R examinations to assess cognitive status, serum concentration of all the antioxidants except for gamma-tocopherol and lycopene were higher in the men with better cognitive performance at a significant level of p<0.05. Better cognitive performance was associated with more time spent in education and higher level of education achieved at a statistically significant level (p<0.01). Furthermore, those with cognitive impairment were more likely to be older. After adjustments for lifestyle variables with a linear regression model, the only significant variable associated with cognition was time spent in education (B = 0.521, p= 0.02).

Conclusion

The findings suggest that the concentration of plasma antioxidants is associated with cognitive status. Smoking and education, as well as other lifestyle factors were, demonstrated to have an impact on cognitive status.

Newspaper framing of food and beverage corporations' sponsorship of sport: a content analysis

BACKGROUND

Unhealthy diets are a leading contributor to obesity, disability and death worldwide. One factor cited as contributing to rises in obesity rates is the pervasive and ubiquitous marketing of unhealthy foods and beverages (F&Bs) across a variety of mediums, such as sport sponsorship at both professional and amateur levels. Despite increased academic attention on the detrimental impacts of sport sponsorship within the obesogenic environment, this has not been matched by legislative action. One explanation may be the way that F&B corporations' sport sponsorship is framed within policy debates. Framing is the deliberate ways in which (often contested) issues are presented in communication. This paper examines how sport sponsorship by F&B corporations is framed through media reports.

METHODS

This study employed a mixed methods content and framing analysis. First, we conducted a quantitative newsprint content analysis (n = 234). This then informed and directed a thematic framing analysis of a sub-set of articles (n = 54) that specifically associated sport sponsorship by F&B corporations with obesity and childhood obesity.

RESULTS

The findings suggest that two competing frames are evident within newspaper coverage: 1) public health and 2) industry. The public health frame rejects the sponsorship of sport by High in Fat Sugar and Salt (HFSS) product corporations in particular, calling for such sponsorship to be restricted or banned. The industry frame characterises sponsorship of sport as a form of corporate social responsibility, positioning industry as good moral actors and part of the solution to childhood and adult obesity. These frames are evident across other Unhealthy Commodity Industries (UCIs) policy debates. However, the prominence of industry actors within the sample is potentially indicative of their discursive power within this space, particularly with their emphasis on the financial maintenance of sport as well as encouraging physical activity, contributing to the lack of regulatory development of sport sponsorship by F&B corporations.

CONCLUSIONS

The findings of this study are particularly useful for public health organisations who seek regulatory change, as it may provide further insight into countering industry framing practices, raising the salience of regulation of sport sponsorship and thus increasing the likelihood of regulatory development that seeks to improve population health.

Efficacy and Safety of Ensovibep for Adults Hospitalized With COVID-19 : A Randomized Controlled Trial

BACKGROUND

Ensovibep (MP0420) is a designed ankyrin repeat protein, a novel class of engineered proteins, under investigation as a treatment of SARS-CoV-2 infection.

OBJECTIVE

To investigate if ensovibep, in addition to remdesivir and other standard care, improves clinical outcomes among patients hospitalized with COVID-19 compared with standard care alone.

DESIGN

Double-blind, randomized, placebo-controlled, clinical trial. (ClinicalTrials.gov: NCT04501978).

SETTING

Multinational, multicenter trial.

PARTICIPANTS

Adults hospitalized with COVID-19.

INTERVENTION

Intravenous ensovibep, 600 mg, or placebo.

MEASUREMENTS

Ensovibep was assessed for early futility on the basis of pulmonary ordinal scores at day 5. The primary outcome was time to sustained recovery through day 90, defined as 14 consecutive days at home or place of usual residence after hospital discharge. A composite safety outcome that included death, serious adverse events, end-organ disease, and serious infections was assessed through day 90.

RESULTS

An independent data and safety monitoring board recommended that enrollment be halted for early futility after 485 patients were randomly assigned and received an infusion of ensovibep (n = 247) or placebo (n = 238). The odds ratio (OR) for a more favorable pulmonary outcome in the ensovibep (vs. placebo) group at day 5 was 0.93 (95% CI, 0.67 to 1.30; P = 0.68; OR > 1 would favor ensovibep). The 90-day cumulative incidence of sustained recovery was 82% for ensovibep and 80% for placebo (subhazard ratio [sHR], 1.06 [CI, 0.88 to 1.28]; sHR > 1 would favor ensovibep). The primary composite safety outcome at day 90 occurred in 78 ensovibep participants (32%) and 70 placebo participants (29%) (HR, 1.07 [CI, 0.77 to 1.47]; HR < 1 would favor ensovibep).

LIMITATION

The trial was prematurely stopped because of futility, limiting power for the primary outcome.

CONCLUSION

Compared with placebo, ensovibep did not improve clinical outcomes for hospitalized participants with COVID-19 receiving standard care, including remdesivir; no safety concerns were identified.

PRIMARY FUNDING SOURCE

National Institutes of Health.

Speech pathology service enhancement for people with head and neck cancer living in rural areas: Using a concept mapping approach to inform service change

BACKGROUND

Speech pathology (SP) services provide swallowing and communication intervention to people with head and neck cancer (HNC) across the continuum of care. However, difficulties exist with access and delivery of services in rural areas. The study aim was to identify actionable goals for SP change, utilizing a concept mapping approach.

METHODS

Eleven SP staff from two regional/remote services completed the concept mapping process. Multivariate analysis and multidimensional scaling were used to develop a final set of prioritized goals for change.

RESULTS

Between the two participating health services, 30 actionable goals were identified within the "green-zone" on the go-zone graph of importance and changeability. Among the most highly rated areas for change was the need to deliver and receive more support for training, mentoring, and supervision to consolidate skills.

CONCLUSIONS

This methodology enabled identification of prioritized, actionable changes to improve SP services for people with HNC living in regional/remote areas.

Swallowing disorders in an older fractured hip population

OBJECTIVE

Dysphagia is prevalent in the older population and might lead to complications, such as pneumonia, malnutrition and dehydration. This study examines an older population post hip-fracture surgery to examine the factors correlated with dysphagia, severity of dysphagia and the incidence of dysphagia in a regional setting.

DESIGN

This prospective cohort study replicates Love et al's (2013, Age Ageing, 42:782) and compares the studies' results. Participants were assessed for dysphagia within 72 hours post hip-fracture surgery. Descriptive statistics were used to calculate the incidence and severity of dysphagia, and collate pre-operative and post-operative characteristics. Univariate and multivariate logistic regression analyses were used to describe relationships between dysphagia and explanatory variables, and to predict the presence of post-operative oropharyngeal dysphagia.

SETTING

General orthopaedic ward at a North Queensland regional hospital.

PARTICIPANTS

One-hundred-three participants: 78 women and 25 men, aged 65-94 years.

MAIN OUTCOME MEASURE(S)

The presence and severity of dysphagia were identified based on the clinical judgement of speech pathologists with at least 2 years' experience in managing patients with acute dysphagia.

RESULT

Fifty-four per cent of the participants were diagnosed with dysphagia of varying severity. Female sex, post-operative confusion and living in a residential aged-care facility prior to admission, significantly predicted dysphagia post-surgery. Post-operative confusion and living in a residential aged-care facility prior to admission, were also significantly correlated with severity of dysphagia post-operatively.

CONCLUSION

Dysphagia was present in a higher proportion of this cohort than that reported by Love et al. This highlights the necessity of timely assessment and management of dysphagia in an older population post-surgery for a fractured hip.

Abstract OT1-08-01: A pilot randomized usual care controlled study of yoga for persistent chemotherapy-induced peripheral neuropathy (CIPN) in breast and gynecological cancer survivors

Background: CIPN is a common, painful, and debilitating side effect of many standard chemotherapy regimens. Patients with CIPN typically experience paresthesia (tingling, numbness), pain, and muscle weakness, and may exhibit significant functional decline and diminished quality of life. Our prior study showed that more than half of breast cancer survivors experience persistent CIPN up to a mean duration of 5.6 years and that this symptom is associated with a doubled fall risk. There is an urgent need to identify nonpharmacological approaches to reduce CIPN symptoms and improve cancer survivors' functional outcomes. Yoga is a mind-body modality that includes stretching, flexibility, and balance training; however, little is known about its effects on symptoms and functional outcomes among cancer survivors with CIPN.

Trial Design: We are conducting a two-arm pilot randomized usual care controlled trial in breast and gynecological cancer survivors at Memorial Sloan Kettering Cancer Center (MSK), New York, NY. Eligible subjects in the intervention arm receive one-hour Hatha Yoga classes taught twice weekly for eight weeks, and practice home-based yoga for a total of 12 weeks. Subjects in the wait list control (WLC) arm continue usual care for 12 weeks, followed by eight weeks of yoga classes and home-based yoga.

Eligibility Criteria: 1) Patients with a primary diagnosis of stage I-III breast, ovarian, uterine, or endometrial cancer; 2) moderate to severe CIPN, defined by four or greater on a 0–10 Numeric Rating Scale (NRS); 3) completion of neurotoxic chemotherapy at least three months prior; 4) no changes in anti-neuropathy medications within three months of enrollment; and 5) an ECOG performance status of 0–2.

Specific Aims: The primary endpoint is safety, feasibility, and NRS changes at eight weeks (end of treatment). The secondary endpoints include the Neuropathic Pain Scale (NPS) and Functional Assessment of Cancer Therapy/Gynecologic Oncology Group-Neurotoxicity (FACT/GOG-Ntx) at eight, 12, and 20 weeks.

Statistical Methods: We will accrue 40 patients to get 36 patients evaluable for the primary endpoint at eight weeks. Using an ANCOVA analysis with a sample size of 36, we will be able to detect an effect size of 00.58 standard deviations (SD) of NRS (moderate effect size) between yoga and WLC assuming a NRS correlation between pre- and post-yoga of 0.5 SD. If we assume a 10% dropout rate based on our recently completed trial, we will need to recruit 20 subjects per arm (total of 40) to fall within the precision noted in the sample size calculation. We recognize that the sample size calculation was based on detecting a moderate effect between yoga and WLC and may miss small but clinically meaningful effects that can be used to design a future trial that is sufficiently powered.

Present accrual and target accrual: 40 participants. We have accrued 25 participants as of June 2018 and anticipate accrual completion by October 2018.

Citation Format: Zhi WI, Leeolou MC, Piulson L, Chen P, Patterson C, Paul T, Patil S, Mao JJ, Bao T. A pilot randomized usual care controlled study of yoga for persistent chemotherapy-induced peripheral neuropathy (CIPN) in breast and gynecological cancer survivors [abstract]. In: Proceedings of the 2018 San Antonio Breast Cancer Symposium; 2018 Dec 4-8; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2019;79(4 Suppl):Abstract nr OT1-08-01.

Communicating antimicrobial resistance and stewardship in the national press: Lessons from sepsis awareness campaigns

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Antimicrobial resistance (AMR) and sepsis have been the subject of increasing media focus.

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Reporting of these issues in UK newspapers contains potentially conflicting messages about antibiotic use.

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Articles about sepsis frequently document its impact using personal narratives that rarely feature in articles about AMR.

•

Few articles balance messages about early antibiotic treatment in sepsis with the need to reduce unnecessary prescribing.

•   Integrating

media discourses about AMR and sepsis may help improve public understandings about the importance of antimicrobial stewardship.

Testing Quantum Electrodynamics in the Lowest Singlet State of Neutral Beryllium-9

We report spectroscopic results on the 2s2p^{1}P_{1} state in neutral atomic beryllium-9. The absolute frequency for the center of gravity is determined to be 42 565.4501(13)  cm^{-1}, a factor of 130 more precise than the previous experimental measurement. The result is in agreement with and a factor of 8 more precise than the current best theoretical estimate of 42 565.441(11)  cm^{-1}, which was calculated including the effects of quantum electrodynamics. Because of the large natural linewidth of the transition, the hyperfine constants were not able to be extracted to high precision.

Calibrating an ultra-low expansion cavity for high precision spectroscopy from 630 THz to 685 THz using molecular tellurium lines

We report on the calibration of a temperature stabilized ultra-low expansion (ULE) cavity using previously measured molecular tellurium and atomic cesium lines. By means of a dual frequency modulation technique, the frequency dependence of the free spectral range of the ULE cavity is measured and was found to vary by less than 60 Hz over the ∼55 THz range of the calibration. This method of calibration enables the ULE cavity to measure absolute frequencies to better than 1.5 MHz.

Media framing and construction of childhood obesity: a content analysis of Swedish newspapers

Objective

Despite lower prevalence than most European countries, childhood obesity is a Swedish public health priority due to its lasting health impacts and socioeconomic patterning. Mass media content influences public and political perceptions of health issues, and media framing of childhood obesity may influence perceptions of its solutions. This study examines framing of childhood obesity in Swedish morning and evening newspapers from 1996 to 2014.

Methods

Content analysis of 726 articles about childhood obesity published in the five most-circulated Swedish newspapers. Article content coded quantitatively and subjected to statistical analysis, describing relationships between themes and trends over time.

Results

Childhood obesity was consistently problematised, primarily in health terms, and linked to socio-economic and geographical factors. The yearly frequency of articles peaked in 2004, followed by a decline, corresponding with evidence about prevalence. Childhood obesity was framed as being driven by individual behaviours more frequently than structural or environmental factors. Structural framings increased over time, but constructions of the problem as driven by individual behaviours, particularly parenting, remained prominent.

Conclusions

A relative growth in structural framings of causes and solutions over time, combined with prominent coverage of socio-economic inequalities, might be indicative of public and political amenability towards societal-level solutions, but individual behaviours remain prominent in framing of the issue. Health advocates might incorporate these insights into media engagement.

Measuring frailty in clinical practice: a comparison of physical frailty assessment methods in a geriatric out-patient clinic

Background

The objectives of this study were to determine: 1) the prevalence of frailty using Fried’s phenotype method and the Short Performance Physical Battery (SPPB), 2) agreement between frailty assessment methods, 3) the feasibility of assessing frailty using Fried’s phenotype method and the SPPB.

Methods

This cross-sectional study was conducted at a geriatric out-patient clinic in Hamilton, Canada. A research assistant conducted all frailty assessments. Patients were classified as non-frail, pre-frail or frail according to Fried’s phenotype method and the SPPB. Agreement among methods is reported using the Cohen kappa statistic (standard error). Feasibility data included the percent of eligible participants agreeing to attempt the frailty assessments (criterion for feasibility: ≥90% of patients agreeing to the frailty assessment), equipment required, and safety considerations. A p-value of <0.05 is considered significant.

Results

A total of 110 participants (92%) and 109 participants (91%) agreed to attempt Fried’s phenotype method and SPPB, respectively. No adverse events occurred during any assessments. According to Fried’s phenotype method, the prevalence of frailty and pre-frailty was 35% and 56%, respectively, and according to the SPPB, the prevalence of frailty and pre-frailty was 50% and 35%, respectively. There was fair to moderate agreement between methods for determining which participants were frail (0.488 [0.082], p < 0.001) and pre-frail (0.272 [0.084], p = 0.002).

Conclusions

Frailty and pre-frailty are common in this geriatric outpatient population, and there is fair to moderate agreement between Fried’s phenotype method and the SPPB. Over 90% of the patients who were eligible for the study agreed to attempt the frailty assessments, demonstrating that according to our feasibility criteria, frailty can be assessed in this patient population. Assessing frailty may help clinicians identify high-risk patients and tailor interventions based on baseline frailty characteristics.

Content analysis of UK newspaper and online news representations of women's and men's 'binge' drinking: a challenge for communicating evidence-based messages about single-episodic drinking?

OBJECTIVES

In the UK, men's alcohol-related morbidity and mortality still greatly exceeds women's, despite an increase in women's alcohol consumption in recent decades. New UK alcohol guidelines introduce gender-neutral low-risk alcohol consumption guidance. This study explores how UK newspaper and online news represent women's and men's 'binge' drinking to identify opportunities to better align reporting of harmful drinking with evidence.

DESIGN

Quantitative and qualitative content analysis of 308 articles published in 7 UK national newspapers and the BBC News website between 1 January 2012 and 31 December 2013.

RESULTS

Articles associated women with 'binge' drinking more frequently than men, and presented women's drinking as more problematic. Men were more frequently characterised as violent or disorderly, while women were characterised as out of control, putting themselves in danger, harming their physical appearance and burdening men. Descriptions of female 'binge' drinkers' clothing and appearance were typically moralistic.

CONCLUSIONS

The UK news media's disproportionate focus on women's 'binge' drinking is at odds with epidemiological evidence, may reproduce harmful gender stereotypes and may obstruct public understandings of the gender-neutral weekly consumption limits in newly proposed alcohol guidelines. In order to better align reporting of harmful drinking with current evidence, public health advocates may engage with the media with a view to shifting media framing of 'binge' drinking away from specific groups (young people; women) and contexts (public drinking) and towards the health risks of specific drinking behaviours, which affect all groups regardless of context.

Recommendations for enhancing psychosocial support of NICU parents through staff education and support

Providing psychosocial support to parents whose infants are hospitalized in the neonatal intensive care unit (NICU) can improve parents' functioning as well as their relationships with their babies. Yet, few NICUs offer staff education that teaches optimal methods of communication with parents in distress. Limited staff education in how to best provide psychosocial support to families is one factor that may render those who work in the NICU at risk for burnout, compassion fatigue and secondary traumatic stress syndrome. Staff who develop burnout may have further reduced ability to provide effective support to parents and babies. Recommendations for providing NICU staff with education and support are discussed. The goal is to deliver care that exemplifies the belief that providing psychosocial care and support to the family is equal in importance to providing medical care and developmental support to the baby.

Recommendations for mental health professionals in the NICU

This article describes recommended activities of social workers, psychologists and psychiatric staff within the neonatal intensive care unit (NICU). NICU mental health professionals (NMHPs) should interact with all NICU parents in providing emotional support, screening, education, psychotherapy and teleservices for families. NMHPs should also offer educational and emotional support for the NICU health-care staff. NMHPs should function at all levels of layered care delivered to NICU parents. Methods of screening for emotional distress are described, as well as evidence for the benefits of peer-to-peer support and psychotherapy delivered in the NICU. In the ideal NICU, care for the emotional and educational needs of NICU parents are outcomes equal in importance to the health and development of their babies. Whenever possible, NMHPs should be involved with parents from the antepartum period through after discharge.

Patients' perception about risks and benefits of antithrombotic treatment for the prevention of venous thromboembolism (VTE) after orthopedic surgery: a qualitative study

Background

The 9th edition of the American College of Chest Physicians’ Antithrombotic Therapy and Prevention of Thrombosis guidelines emphasize the importance of considering the risk–benefit ratio of “patient-important” outcomes. However, little is known about patients’ perception and understanding regarding the different outcomes of antithrombotic treatment after orthopedic surgery, and the factors that influence their decision to use these treatments. Using a series of semi-structured interviews, we explored patients’ understanding and perception concerning the benefits and risks of antithrombotic treatment for the prevention of venous thromboembolism (VTE) after joint replacement surgery.

Methods

A series of semi-structured interviews were conducted with patients who had undergone knee or hip replacement surgery at a tertiary care hospital (Brigham and Women’s Hospital, Boston, MA) in 2014. Discussions were recorded and transcribed. Two investigators independently coded and analyzed the data to identify important themes and concepts using the constant comparative method.

Results

Of 64 patients who were invited, 12 patients (19 %) completed the interviews. The majority of patients (92 %) were aware of the benefits of antithrombotic therapy for reducing the risk of blood clots, while less than half of them had a clear understanding of deep vein thrombosis and pulmonary embolism. While all patients were aware of risk of minor bleeding, only 6 patients (50 %) considered the risk of major bleeding as a possible side effect of antithrombotic treatment. Overall, patients perceived bleeding as a less important outcome than a thrombotic event. The lack of awareness about the risk of major bleeding, the assumption that a short-term exposure would not meaningfully affect bleeding risk, and the assumption that bleeding is a controllable event influenced their perception. Most patients (83 %) stated that their decision to use antithrombotic medications was mainly based on the trust in their physician’s expertise.

Conclusions

Patients perceived thrombotic events as more important outcomes than bleeding events. Patients’ understanding of thrombotic and bleeding events varies and may play a key role in their preferences. The majority of patients stated that trust in their physician’s expertise had a large influence on their decision to use antithrombotic medications.

Deep vein thrombosis and pulmonary embolism in the military patient

OBJECTIVES

Venous thromboembolism (VTE), encompassing deep vein thrombosis and pulmonary embolism, is a common, potentially lethal condition and a cause of long-term morbidity and functional limitation. This paper is a clinical review focused on military epidemiology, evidence-based recommendations for prevention, diagnosis and management of VTE and occupational considerations in a military population.

METHODS

A literature review was conducted through Pubmed and Embase for systematic reviews, meta-analyses and clinical trials relating to VTE. Guidelines from the National Institute for Health and Care Excellence, British Thoracic Society and the American College of Chest Physicians were reviewed and recommendations considered.

RESULTS

Acute morbidity from VTE can range from limb pain and swelling to life-threatening cardiovascular compromise. Long-term sequelae include postthrombotic syndrome, chronic thrombosis and pulmonary hypertension. Diagnosis should follow a validated pathway depending on the patient's prerest probability. The management of the condition should vary with attention to risk stratification.

DISCUSSION

Prompt initiation of anticoagulation reduces symptoms, rates of recurrent VTE and death but treatment must be balanced against the risk of major haemorrhage. Military operations expose personnel to a unique combination of risk factors for VTE and operating in austere environments can increase the challenge of diagnosis, prognostication and management. Furthermore, there are implications for troop attrition, operational readiness and return to work.

Teenagers' understandings of and attitudes towards vaccines and vaccine-preventable diseases: a qualitative study

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Explored understandings of diseases and knowledge and experiences of vaccination.

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Teenagers had limited knowledge and little direct experience of the diseases.

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Participants attitudes towards receiving vaccines’ varied.

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The success of mass immunisation programmes is associated with disease perceptions.

•

Need to engage with teenagers to address misconceptions about vaccines and diseases.

Background

To examine immunisation information needs of teenagers we explored understandings of vaccination and vaccine-preventable diseases, attitudes towards immunisation and experiences of immunisation. Diseases discussed included nine for which vaccines are currently offered in the UK (human papillomavirus, meningitis, tetanus, diphtheria, polio, whooping cough, measles, mumps and rubella), and two not currently included in the routine UK schedule (hepatitis B and chickenpox).

Methods

Twelve focus groups conducted between November 2010 and March 2011 with 59 teenagers (29 girls and 30 boys) living in various parts of Scotland.

Results

Teenagers exhibited limited knowledge and experience of the diseases, excluding chickenpox. Measles, mumps and rubella were perceived as severe forms of chickenpox-like illness, and rubella was not associated with foetal damage. Boys commonly believed that human papillomavirus only affects girls, and both genders exhibited confusion about its relationship with cancer. Participants considered two key factors when assessing the threat of diseases: their prevalence in the UK, and their potential to cause fatal or long-term harm. Meningitis was seen as a threat, but primarily to babies. Participants explained their limited knowledge as a result of mass immunisation making once-common diseases rare in the UK, and acknowledged immunisation's role in reducing disease prevalence.

Conclusions

While it is welcome that fewer teenagers have experienced vaccine-preventable diseases, this presents public health advocates with the challenge of communicating benefits of immunisation when advantages are less visible. The findings are timely in view of the Joint Committee on Vaccination and Immunisation's recommendation that a booster of meningitis C vaccine should be offered to teenagers; that teenagers did not perceive meningitis C as a significant threat should be a key concern of promotional information. While teenagers’ experiences of immunisation in school were not always positive, they seemed enthusiastic at the prospect of introducing more vaccines for their age group.

P3-16-04: A Novel Monoclonal Antibody to Secreted Frizzled Related Protein 2 Inhibits Triple Negative Breast Carcinoma Growth Rate In Vivo

Background: Secreted frizzled related protein 2 (SFRP2) is a novel angiogenesis factor expressed in the endothelium of a wide variety of human tumors including triple negative breast cancer and angiosarcoma. We previously reported generating a monoclonal antibody against SFRP2 that inhibits endothelial cell and angiosarcoma tube formation in vitro, and decreased tumor volume of the SVR angiosarcoma in vivo. The objectives of these studies were to determine pharmacokinetic (PK) and pharmacodynamic (PD) parameters of the SFRP2 MAb, and evaluate its efficacy in a triple negative breast cancer xenograft.

Methods: 125 I-SFRP2 MAb was administered to nude mice i.v. via tail vein injections at 0.4 mg/kg, 4 mg/kg, or 10 mg/kg in mice with or without tumor. Blood organ, and tumor samples were collected at various time points from 5 min to 21 days. Radiolabeled SFRP2 MAb in serum and tissues was determined using a gamma counter. PK parameters were determined based on mean concentration values for 3–5 animals per time point. In vivo efficacy study: MDA-MB-231 human breast cancer xenografts were established in 6-week-old female nude mice. Mice were inoculated with 1 × 106 cells s.c.. Treatment began on day 16 after tumor inoculation when average tumor size was 200 mm3. Animals were randomly assigned (n = 12 per group) to buffer control, SFRP2 MAb 4 mg/kg iv twice weekly; Avastin (Roch) 5 mg/kg iv twice weekly, or IGg control 4 mg/kg iv twice weekly. Tumors were harvested when the tumor diameter reached 2 cm or at 28 days. Tumor volumes were measured with a caliper. Growth rates (percent change per day) were compared with the formula ((Final volume- initial volume)/ initial volume) x 100 / number of days. Differences in growth rate between treated and control were analyzed with a two-tailed t-test.

Results: PK and PD: SFRP2 MAb was long circulating in the blood with an average t1/2 in the range of 53–89 hr. In addition, the SFPR2 MAb was found to preferentially target the tumors versus all other organs except for the liver. For example, in tumor bearing mice, the blood/tissue ratio on day 14 was smallest in the liver (15:1) and tumor (16:1) as compared to all other organs (range: 39:1 to 255:1) proving that the tumor was a prime organ for accumulation of the SFRP2 MAb. The SFPRP2 MAb in tumor bearing and non-tumor bearing mice exhibited dose-independent kinetics as a one-way ANOVA analysis comparing t1/2 at different dose levels was not statistically significant (p=0.2847 and 0.1204, respectively). However, there was statistically significant difference in t1/2 of the SFPR2 MAb in tumor-bearing and non-tumor bearing mice (p=0.0386). Efficacy in triple negative breast cancer: There was a 40% decrease in growth rate between SFRP2 MAb and control (p=0.03) and a 20% inhibition of growth rate between Avastin and control (p=0.40). The IgG negative control had no effect on tumor growth.

Conclusion: The SFRP2 MAb was long circulating and the tumor was a prime organ for accumulation of the SFRP2 MAb. SFRP2 MAb slowed the growth of a human triple negative breast cancer xenograft in a tumor model that was not sensitive to Avastin. We conclude that SFRP2 is a novel therapeutic target for breast cancer.

Citation Information: Cancer Res 2011;71(24 Suppl):Abstract nr P3-16-04.

The effect of applying NICE guidelines for the investigation of stable chest pain on out-patient cardiac services in the UK

BACKGROUND

The National Institute for Health and Clinical Excellence (NICE) recently released guidelines for the investigation of chest pain of recent onset. There is no published data regarding their impact on out-patient cardiac services.

AIM

This study was undertaken to assess the likelihood of coronary artery disease (CAD) in Rapid Access Chest Pain Clinic (RACPC) patients and the resultant investigation burden if NICE guidance was applied.

METHODS

Five hundred and ninety-five consecutive patients attending two RACPCs over 6 months preceding release of the NICE guidelines [51% male; median age 55 (range 22-94) years] were risk stratified using NICE criteria and the resultant investigations evaluated.

RESULTS

One hundred and six (18%) patients had a likelihood of CAD <10%, 123 (21%) between 10% and 29%, 175 (29%) between 30% and 60%, 141 (24%) between 61% and 90% and 50 (8%) >90%. NICE would have recommended 443 (74%) patients for no cardiac investigation, 10 (2%) for cardiac computed tomography (CCT), 69 (12%) for functional cardiac testing and 73 (12%) for invasive angiography. Relative to existing practice, there would have been a trend towards reduced functional cardiac testing (-24%, P = 0.06), no significant change in CCT (43%, P = 0.436) and a significant increase in invasive angiography (508%, P < 0.001). The cost of investigations recommended by NICE would have been £15,881 greater than existing practice.

CONCLUSION

This study suggests patients attending RACPC will have a greater likelihood of CAD than predicted by NICE. Differences between recommended investigations and existing practice will guide investment in cardiac services. Individual hospitals should assess their RACPC cohorts prior to implementing the NICE guidelines.