A cluster of four cases of meningococcal disease in a single nuclear family

A cluster of four confirmed cases of meningococcal disease was seen in the same nuclear family across a 15-week period. The cases were three siblings and a parent and all recovered well. The first case was confirmed by meningococcal PCR only but the subsequent three cases were due to indistinguishable strains of serogroup B (B:NT:P1.19-1,15-11). Contact tracing was initially undertaken and reviewed in detail after each subsequent case. Antibiotic prophylaxis was administered to close family contacts on three separate occasions, including switching of antibiotic agents, with good compliance. Subsequent investigation of the family has not revealed any obvious immunological problem and no further significant infections have been recognised. A cluster of meningococcal disease of this nature and timescale is highly unusual. Details of the cluster, investigation and implications for health protection practice are discussed.

High-pressure homogenization of raw and pasteurized milk modifies the yield, composition, and texture of queso fresco cheese

High-pressure homogenization (HPH) of milk was studied as an alternative processing operation in the manufacturing of queso fresco cheese. Raw and pasteurized (65°C for 30 min) milks were subjected to HPH at 0, 100, 200, and 300 MPa and then used to manufacture queso fresco. The cheeses were evaluated for yield, moisture content, titratable acidity, nitrogen content, whey protein content, yield force, yield strain, and tactile texture by instrumental or trained panel analyses. The combination of HPH and thermal processing of milk resulted in cheeses with increased yield and moisture content. The net amount of protein transferred to the cheese per kilogram of milk remained constant for all treatments except raw milk processed at 300 MPa. The highest cheese yield, moisture content, and crumbliness were obtained for thermally processed milk subjected to HPH at 300 MPa. The principal component analysis of all measured variables showed that the variables yield, moisture content, and crumbliness were strongly correlated to each other and negatively correlated to the variables yield strain, protein content (wet basis), and sensory cohesiveness. It is suggested that the combination of thermal processing and HPH promotes thermally induced denaturation of whey protein, together with homogenization-induced dissociation of casein micelles. The combined effect results in queso fresco containing a thin casein-whey matrix that is able to better retain sweet whey. These results indicate that HPH has a strong potential for the manufacture of queso fresco with excellent yield and textural properties.

Quality-of-life measurements in patients receiving radiation therapy for colorectal malignancies as compared to other gastrointestinal malignancies

587

Background: Therapy for GI malignancies has long been known to have a marked impact on quality of life, yet this relationship remains poorly understood.

Methods: A retrospective, IRB-approved chart review was performed of 722 patients receiving RT for any cancer diagnosis between 1/1/2006 and 12/31/2008. Subjects completed the Functional Assessment of Cancer Therapy General (FACT-G) questionnaire before and after RT. Pre- and immediately post-RT course scores were compared using student t-tests with Bonferroni correction for multiple comparisons (5 comparisons, alpha =.01).

Results: 722 of 1369 (52.7%) possible patients participated in the database. Complete pre and post RT spirituality data were available for 73 (64.6%) patients with GI malignancies. Average age was 62 years, 58 (79%) were male and 52 (71%) received definitive treatment. 27 (37%) had esophageal or gastric cancer, 22 (30%) had colorectal cancer and 24 (33%) had other GI malignancies such as pancreatic or hepatobiliary. Colorectal cancer patients fared better in overall QOL as compared to esophageal and gastric patients, pancreatic and hepatobiliary patients and patients with GI malignancies as a whole, and were the only group in which decline in overall QOL as measured by the FACT-G (77.22 to 73.08, p=0.216) did not reach or approach significance. This appeared to be largely driven by differences in physical and especially functional well-being, in which colorectal patients demonstrated the smallest decline (16.14 to 15.59, p=0.466) of any group. Colorectal patients did, however, demonstrate a larger decline in physical well-being (22.35 to 18.05, p=0.010) and overall QOL than did all-comers with any primary malignancy (22.1 to 19.4, p<.001) and (81.3 to 78.9, p<.001) respectively.

Conclusions: Physical and functional well-being, as well as overall quality of life are known to decline in patients with GI malignancies. Patients with colorectal disease appear to fare better than those with esophageal, stomach, pancreatic or hepatobiliary malignancies by these measures. Additional investigations are warranted to further define these differences.

No significant financial relationships to disclose.

Emotional well-being and quality of life in patients undergoing radiation therapy for pancreatic and hepatobiliary malignancies

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Background: Therapy for GI malignancies has long been known to have a marked impact on quality of life, yet this relationship remains poorly understood. The specific aim of this analysis was to evaluate the impact of radiation therapy (RT) on emotional well-being and QOL in patients receiving RT for pancreatic and hepatobiliary malignancies.

Methods: A retrospective, IRB-approved chart review was performed of 722 patients receiving RT for any cancer diagnosis between 1/1/2006 and 12/31/2008. Subjects completed the Functional Assessment of Cancer Therapy General (FACT-G) questionnaire before and after RT. Pre- and immediately post-RT course scores were compared using student t-tests with Bonferroni correction for multiple comparisons (7 comparisons, alpha =.007).

Results: 722 of 1369 (52.7%) patients participated in the Patient Related Outcome database. Complete pre and post RT spirituality data were available for 73 (64.6%) patients with GI malignancies, including 24 (33%) with pancreatic or hepatobiliary disease. Average age was 61, 15 (63%) were male and 14 (58%) received definitive treatment. A decrease in both functional and physical well-being was demonstrated in post-RT scores as compared to pre-RT. Emotional well-being, however, increased (17.60 to 18.72, p=0.051), a trend not replicated in any of the other GI malignancies. Further analysis demonstrated this improvement was largely due to a decrease in positive response to the statements “I feel nervous” (1.21 to 0.67, p=0.009) and “I worry my condition will get worse” (1.58 to 1.25, p=0.043). A decrease in positive response to “I feel sad” and an increase in positive response to “I am satisfied with how I am coping with my illness” were also noted, but differences were not significant.

Conclusions: Emotional well-being of those receiving RT for pancreatic and hepatobiliary malignancies appears to improve over the course of therapy, even while other measures of QOL decline. Additional investigations in larger populations are warranted to further elucidate this relationship. Documentation of PROs may have potential for impact on QOL for patients with these and other malignancies.

No significant financial relationships to disclose.

Adolescents' beliefs about their parents' human papillomavirus vaccination decisions

A significant minority of parents are concerned that human papillomavirus vaccination will affect sexual behaviour. We explored this issue with 162 adolescent girls. Most (between 90 and 92%) did not perceive a connection between parental consent to vaccination and parental authorisation for sexual activity, but a small percentage believed that vaccination consent implied that they were old enough to have sex (8%), or that it was okay for them to be sexually active (10%). The findings are broadly reassuring, but highlight the need for vaccination information materials to clarify why the vaccine is administered before sexual debut.

Public awareness of cancer in Britain: a population-based survey of adults

Objective:

To assess public awareness of cancer warning signs, anticipated delay and perceived barriers to seeking medical advice in the British population.

Methods:

We carried out a population-based survey using face-to-face, computer-assisted interviews to administer the cancer awareness measure (CAM), a newly developed, validated measure of cancer awareness. The sample included 2216 adults (970 males and 1246 females) recruited as part of the Office for National Statistics Opinions Survey using stratified probability sampling.

Results:

Awareness of cancer warning signs was low when open-ended (recall) questions were used and higher with closed (recognition) questions; but on either measure, awareness was lower in those who were male, younger, and from lower socio-economic status (SES) groups or ethnic minorities. The most commonly endorsed barriers to help seeking were difficulty making an appointment, worry about wasting the doctor's time and worry about what would be found. Emotional barriers were more prominent in lower SES groups and practical barriers (e.g. too busy) more prominent in higher SES groups. Anticipated delay was lower in ethnic minority and lower SES groups. In multivariate analysis, higher symptom awareness was associated with lower anticipated delay, and more barriers with greater anticipated delay.

Conclusions:

A combination of public education about symptoms and empowerment to seek medical advice, as well as support at primary care level, could enhance early presentation and improve cancer outcomes.

Ethnic differences in human papillomavirus awareness and vaccine acceptability

Background:

Studies of human papillomavirus (HPV) awareness and HPV vaccine acceptability have included few non-white participants, making it difficult to explore ethnic differences. This study assessed HPV awareness and HPV vaccine acceptability in a sample of women representing the major UK ethnic minority groups.

Methods:

A cross-sectional study design was used to assess awareness of HPV and acceptability of HPV vaccination. Participants were recruited using quota sampling to ensure adequate representation of ethnic minority women: Indian, Pakistani, Bangladeshi, Caribbean, African and Chinese women (n = 750). A comparison sample of white British women (n = 200) was also recruited.

Results:

Awareness of HPV was lower among ethnic minority women than among white women (6–18% vs 39% in white women), and this was not explained by generational status or language spoken at home. In a subsample who were mothers (n = 601), ethnicity and religion were strongly associated with acceptability of HPV vaccination. Acceptability was highest among white mothers (63%) and lowest among South Asians (11–25%). Those from non-Christian religions were also less accepting of the vaccine (17–34%). The most common barriers to giving HPV vaccination were a need for more information, sex-related concerns and concern about side-effects. South Asian women were the most likely to cite sex-related concerns, and were also least likely to believe the vaccine would offer their daughters protection.

Conclusion:

These findings suggest some cultural barriers that could be addressed in tailored information aimed at ethnic minority groups. They also highlight the importance of recording ethnicity as part of HPV vaccine uptake data.

[Human subcutaneous dirofilariosis due to Dirofilaria repens. A case diagnosed in Strasbourg, France]

We report a case of human dirofilariosis in a 35 year-old man living in Alsace (North-East France), who presented a subcutaneous nodule of the left cheek, strongly simulating an epidermic cyst. Surgical excision and histopathological examination unexpectedly established the diagnosis by the presence of nematode worm sections identified as Dirofilaria (Nochtiella) repens. This patient living in a rural area of Strasbourg spent one week in Toulon, Southern France. This new observation of cutaneous dirofilariosis constitutes the third Alsatian case described in literature, and emphasizes the presence of this parasitic disease in Southern France.

High prevalence of central nervous system medications in community-dwelling older adults with dementia over a three-year period

Few recent studies have investigated the prevalence and outcomes for central nervous system (CNS)-active medication use in older persons with dementia (PWD) who live in the community. Thus, the purpose of this study was to describe the health outcomes and patterns of use of CNS-active drugs in PWD living in the community. Using a retrospective study design from a southeastern managed care organization (MCO), claims data were collected for three years on all identified cases with dementia and included age, gender, medical diagnoses for each claim (International Classification of Disease [ICD-9 code]) and prescription drugs (National Drug Code [NDC]). Individuals (N = 960) were selected who were continuously enrolled and had prescription drug coverage. Over 79% of PWD in this sample were on a CNS-active medication during the three-year period and 35% were on a benzodiazepine. The highest number of drug-related problems (DRPs) within 45 days after receiving a CNS drug prescription were for syncope, fatigue, altered level of consciousness, delirium, constipation, falls and fractures. This study illustrates the need to further examine inappropriate CNS-active medication use in PWD and to test non-pharmacologic therapies for the clinical problems that initiate their use in PWD.

Public awareness that HPV is a risk factor for cervical cancer

We assessed awareness of human papillomavirus (HPV) in a population sample of British women (n=1620) using similar questions to those in a survey in 2002. Only 2.5% cited HPV as the cause of cervical cancer without prompting; up from 0.9% in 2002. Public education about HPV is urgently needed.

The association between knowledge of HPV and feelings of stigma, shame and anxiety

OBJECTIVES

To test the hypotheses that (1) women who know that human papillomavirus (HPV) is sexually transmitted will expect to experience higher levels of stigma, shame and anxiety if they test positive for the virus than women who are not aware of the mode of transmission and (2) women who are aware of the high prevalence of HPV infection will expect to experience lower levels of stigma, shame and anxiety than women who underestimate its prevalence.

METHODS

A web-based survey in which information about HPV was manipulated to generate a 2 x 2 design (awareness that HPV is sexually transmitted v no awareness; awareness of the high prevalence of HPV v no awareness). Participants (n = 811) were female students. They were asked to imagine that they had tested positive for HPV. Outcome measures were expected stigma, shame and anxiety.

RESULTS

Great differences were observed in emotional reactions to imagining testing HPV positive between the four groups based on knowledge of HPV. Knowledge of the prevalence was associated with lower levels of stigma, shame and anxiety. Knowledge that HPV is sexually transmitted was associated with higher levels of stigma and shame, but not anxiety. Women who knew that HPV is sexually transmitted but not that it is highly prevalent had the highest scores for stigma and shame.

CONCLUSIONS

Raising public awareness of the sexually transmitted nature of HPV has the potential to increase women's feelings of stigma and shame if they test positive for the virus. However, our findings suggest that ensuring women's awareness of HPV being common may reduce these feelings and also reduce anxiety, perhaps by "normalising" the infection.

Social and psychological impact of HPV testing in cervical screening: a qualitative study

Objective

Human papillomavirus (HPV) testing has been proposed for inclusion in the UK cervical screening programme. While testing may bring some benefits to the screening programme, testing positive for HPV, a sexually transmitted virus, may have adverse social and psychological consequences for women. The aim of this study was to examine the social and psychological impact of HPV testing in the context of cervical cancer screening.

Method

In‐depth interviews generating qualitative data were carried out with 74 women participating in HPV testing in England between June 2001 and December 2003. Purposive sampling was used to ensure heterogeneity in age, ethnic group, marital status, socioeconomic background, cytology, and HPV results among participants.

Results

Testing positive for HPV was associated with adverse social and psychological consequences, relating primarily to the sexually transmitted nature of the virus and its link to cervical cancer. Women described feeling stigmatised, anxious and stressed, concerned about their sexual relationships, and were worried about disclosing their result to others. Anxiety about the infection was widespread, but the impact of testing positive varied. The psychological burden of the infection related to women's relationship status and history, their social and cultural norms and practices around sex and relationships, and their understanding of key features of HPV.

Conclusion

HPV testing should be accompanied by extensive health education to inform women and to de‐stigmatise infection with the virus to ensure that any adverse impact of the infection on women's wellbeing is minimised.

Combination of caspofungin and an azole or an amphotericin B formulation in invasive fungal infections

OBJECTIVES

Combination of caspofungin and another anti-fungal agent raise expectation of improved efficacy in severe fungal infections including failures to first line therapy.

METHODS

We assessed the efficacy and safety of a combination therapy including caspofungin in 17 immunosuppressed or postoperative patients progressive despite standard anti-fungal therapy.

RESULTS

The infections included aspergillosis (6), invasive candidiasis (9), mucormycosis (1) and Scedosporium pneumonia (1). Infections had failed one to four prior lines of treatment. The anti-fungal agent combined to caspofungin was either an amphotericin B formulation or an azole. There were 12 favourable responses (71%) and five failures. The survival rate at 3 months was 47%. Eleven patients died within 2-533 days. The causes of death included the initial fungal infection (4), relapse of the infection after switching to oral monotherapy (2), breakthrough aspergillosis (1), and the underlying condition (4). Clinical and renal tolerance were good. Significant hepatic abnormalities were recorded in eight (50%) of the 16 patients evaluable for biological tolerance.

CONCLUSION

Caspofungin combined with an azole or with amphotericin B may be of interest in the treatment of serious fungal infections after failure of conventional therapy. Close monitoring of hepatic function is required. These approach should be evaluated in prospective trials.

Tensile strength of mineralized/demineralized human normal and carious dentin

The bond strengths of resins to caries-affected dentin are low. This could be due to weakened organic matrix. The purpose of this work was to determine if the ultimate tensile strength (UTS) of excavated carious dentin is weaker than that of normal dentin. Soft caries was excavated from extracted human molars, and the tooth was vertically sectioned into slabs. Each slab was trimmed to an hourglass shape, parallel or perpendicular to the tubule direction. Half of the specimens were mineralized, while the other half were completely demineralized in EDTA. ANOVA on ranks showed that the three-factor interactions (mineralization, caries, tubule direction) were all significant (p < 0.0001), indicating that mineralization and tubule direction gave different UTS results in normal and caries-affected dentin. No significant differences were seen between the UTS of normal and and that of caries-affected demineralized dentin in the parallel or perpendicular group. The matrix of demineralized caries-affected dentin was as strong as that of normal demineralized dentin when tested in the same direction.

SunSmart? Skin cancer knowledge and preventive behaviour in a British population representative sample

The incidence of skin cancer has risen rapidly in the UK over the last 20 years, prompting public health organizations to try and raise awareness of the dangers of sun exposure and the need to practice sun-safe behaviour. This study aimed to assess baseline levels of sun-safe knowledge and behaviour in a British population-representative sample, prior to the launch of Cancer Research UK's 'SunSmart' campaign. A face-to-face survey was conducted through the Office for National Statistics as part of their Omnibus survey. In total, 1848 men and women aged 18 and over were interviewed. Knowledge of what to do to reduce skin cancer risk was modest. Two-thirds mentioned avoiding the sun by seeking shade, 50% mentioned covering up and only 43% said to use high factor sunscreen. Practice of sun-safe behaviours was also poor, with only one-third saying they sought shade, covered up or used high factor sunscreen to protect themselves from the sun. Men and those from lower socioeconomic groups were least informed and least likely to report using sun-protective behaviours. Increases in both knowledge and use of appropriate sun-protective behaviours are needed if skin cancer incidence rates are to decrease.

Epidemiological study of invasive pulmonary aspergillosis in a haematology unit by molecular typing of environmental and patient isolates of Aspergillus fumigatus

In order to determine the possible relationship between environmental contamination by Aspergillus fumigatus and occurrence of invasive aspergillosis, a one-year prospective study was carried out in the haematology ward of Hautepierre Hospital, Strasbourg, France. During the study period, 21 environmental isolates and 26 clinical isolates of A. fumigatus were collected. Each was genotyped using a random amplification of polymorphic DNA (RAPD) technique. Thirty-four distinct profiles were identified by RAPD analysis, indicating the great genetic diversity of A. fumigatus isolated from infected patients and from the environment. For two patients, RAPD analysis demonstrated concurrent infection by at least two different strains. In two cases, a genetic similarity was noted between isolates obtained from a patient and from the environment.

Making sense of information about HPV in cervical screening: a qualitative study

Introducing human papillomavirus (HPV) testing into cervical cancer screening has the potential to change the way that women understand cervical cancer, the psychological impact of abnormal screening results and the likelihood of future participation in screening. The study used in-depth interviews to examine how women make sense of information about HPV in the context of cervical cancer screening. A total of 74 women were recruited following participation in HPV testing. Women varied widely in their beliefs about the aetiology of cervical cancer and its relationship with sexual activity, as well as in their understanding of the sexually transmitted nature of HPV. While some women who understood that HPV is sexually transmitted were able to integrate this into their existing model of cervical cancer, others were shocked by the link between cervical cancer and sex, of which they had been previously unaware. Women were generally reassured to know that HPV is common, has no symptoms, can lie dormant for many years, can clear up on its own and need not raise concerns about transmission to sexual partners. Women's understanding of HPV varied considerably, even after participation in testing. The way in which information is presented to women will be crucial in minimising the negative psychological impact of testing positive and ensuring that participation in screening remains high.