Comparison of Kaposi Sarcoma Risk in Human Immunodeficiency Virus-Positive Adults Across 5 Continents: A Multiregional Multicohort Study

BACKGROUND

We compared Kaposi sarcoma (KS) risk in adults who started antiretroviral therapy (ART) across the Asia-Pacific, South Africa, Europe, Latin, and North America.

METHODS

We included cohort data of human immunodeficiency virus (HIV)-positive adults who started ART after 1995 within the framework of 2 large collaborations of observational HIV cohorts. We present incidence rates and adjusted hazard ratios (aHRs).

RESULTS

We included 208140 patients from 57 countries. Over a period of 1066572 person-years, 2046 KS cases were diagnosed. KS incidence rates per 100000 person-years were 52 in the Asia-Pacific and ranged between 180 and 280 in the other regions. KS risk was 5 times higher in South African women (aHR, 4.56; 95% confidence intervals [CI], 2.73-7.62) than in their European counterparts, and 2 times higher in South African men (2.21; 1.34-3.63). In Europe, Latin, and North America KS risk was 6 times higher in men who have sex with men (aHR, 5.95; 95% CI, 5.09-6.96) than in women. Comparing patients with current CD4 cell counts ≥700 cells/µL with those whose counts were <50 cells/µL, the KS risk was halved in South Africa (aHR, 0.53; 95% CI, .17-1.63) but reduced by ≥95% in other regions.

CONCLUSIONS

Despite important ART-related declines in KS incidence, men and women in South Africa and men who have sex with men remain at increased KS risk, likely due to high human herpesvirus 8 coinfection rates. Early ART initiation and maintenance of high CD4 cell counts are essential to further reducing KS incidence worldwide, but additional measures might be needed, especially in Southern Africa.

The colonisation of the glenohumeral joint by Propionibacterium acnes is not associated with frozen shoulder but is more likely to occur after an injection into the joint

AIMS

Our aim was to investigate the prevalence of Propionibacterium (P.) acnes in the subcutaneous fat and capsule of patients undergoing shoulder surgery for frozen shoulder or instability.

PATIENTS AND METHODS

A total of 46 patients undergoing either an arthroscopic capsular release or stabilisation had biopsies taken from the subcutaneous fat and capsule of the shoulder at the time of surgery. These samples were sent for culture in enrichment, and also for Nucleic Acid Amplification testing. The prevalence of P. acnes and other microbes was recorded. Fisher's exact test of binary variables was used to calculate the association with significance set at p < 0.05. Assessment of influence of independent variables including a pre-operative glenohumeral injection, fat colonisation and gender, was undertaken using binary linear regression.

RESULTS

A total of 25 patients (53%) had P. acnes in one or more tissue samples and 35 (74%) had other bacterial species. The same microbe was found in the subcutaneous fat and the capsule in 13 patients (28%). There was no statistically significant association between the surgical pathology and capsular colonisation with P. acnes (p = 0.18) or mixed identified bacterial species (p = 0.77). Male gender was significantly associated with an increased capsular colonisation of P. acnes (odds ratio (OR) 12.38, 95% confidence interval (CI) 1.43 to 106.77, p = 0.02). A pre-operative glenohumeral injection was significantly associated with capsular P. acnes colonisation (OR 5.63, 95% CI 1.07 to 29.61, p = 0.04. Positive fat colonisation with P. acnes was significantly associated with capsular P. acnes (OR 363, 95% CI 20.90 to 6304.19, p < 0.01). Regression models pseudo R² found fat colonisation with P. acnes to explain 70% of the variance of the model. Patients who had a pre-operative glenohumeral injection who were found intra-operatively to have fat colonisation with P. acnes had a statistically significant association with colonisation of their capsule with P. acnes (OR 165, 95% CI 13.51 to 2015.24, p < 0.01).

CONCLUSION

These results show a statistically significant association between subcutaneous skin P. acnes culture and P. acnes capsular culture, especially when the patient has undergone a previous injection. The results refute the hypothesis that P. acnes causes frozen shoulder. Cite this article: Bone Joint J 2017;99-B:1067-72.

The Supportive Hospice and Aged Residential Exchange (SHARE) programme in New Zealand

Research indicates that staff in aged residential care may be unprepared for their role in palliative care provision. In collaboration with a local hospice, the project piloted an innovative problem-based experiential learning intervention Supportive Hospice and Aged Residential Exchange (SHARE) to enhance aged residential care staff palliative care skills. The aim was to explore the impact of SHARE for staff. SHARE was implemented in two aged residential care facilities in one urban centre for six months. Measurement of the impact of the intervention consisted of 1) pre-test-post-test questionnaires (n = 27) to assess changes in staff confidence in palliative care delivery 2) Eleven post-intervention interviews to describe staff perceptions of SHARE. Results from the SHARE pilot indicate that the intervention overall is seen as a success, especially in relation to advanced care planning documentation. Relationships between hospice and facility staff, and consequently facility staff and residents are seen as the key to the success of the project. Staff survey results indicated increased confidence in palliative care delivery and decreased depression. Key lessons learnt from for the development of any palliative care intervention within aged residential care include the importance of reciprocal learning, as well as the necessity of a strong partnership with key stakeholders.

Transitions to and from long-term care facilities and length of completed stay: Reuse of population-based survey data

OBJECTIVE

This article estimates length of completed stay and resident transitions for RAC residents over 12 months in Auckland.

METHODS

Data from a census-type survey of nursing home residents (n = 6816) were linked with national mortality data. Transitions described include entry to residential aged care (RAC), movement between RAC facilities and deaths.

RESULTS

When reweighted for missing data and adjusted for length bias, an estimated 9676 residents (95% CI 8368-10 985) used care over a 12-month period. Half of new residents entered RAC via an acute hospital. Median survival was 2.0 years; 17% died within 3 months, and 23% survived over 5 years.

CONCLUSION

Cross-sectional survey data, when appropriately adjusted for length-biased sampling, enable estimates of period prevalence and transition probabilities that are useful for simulation studies. Given population ageing and the costs of ongoing care, these results can inform policy and planning for long-term care needs of older people.

Patient and Staff Safety: Voluntary Reporting

Central to efforts to assure the quality of patient care in hospitals is having accurate data about quality and patient problems. The purpose was to describe the reporting rates of medication administration errors (MAE), patient falls, and occupational injuries. A questionnaire was distributed to staff nurses (N = 1105 respondents) in a national sample of 25 hospitals. This addressed voluntary reporting, work environment factors, and reasons for not reporting occurrences. More than 80% indicated that all MAEs should be reported, but only 36% indicated that near misses should be reported. Perceived levels of actual reporting were: 47% of MAEs, 77% of patient falls, 48% of needlesticks, 22% of other exposures to body fluids, and 17% of back injuries. Administrative response to reports, personal fears, and unit quality management were related to reporting. Patient and staff safety occurrences are underreported. Strong quality management processes and positive responses to reports of occurrences may increase reporting and enhance safety.

The use of ultrasound to assess fetal growth in a guinea pig model of fetal growth restriction

Fetal growth restriction (FGR) is a common and potentially severe pregnancy complication. Currently there is no treatment available. The guinea pig is an attractive model of human pregnancy as placentation is morphologically very similar between the species. Nutrient restriction of the dam creates growth-restricted fetuses while leaving an intact uteroplacental circulation, vital for evaluating novel therapies for FGR. Growth-restricted fetuses were generated by feeding Dunkin Hartley guinea pig dams 70% of ad libitum intake from four weeks before and throughout pregnancy. The effect of maternal nutrient restriction (MNR) on dams and fetuses was carefully monitored, and ultrasound measurements of pups collected. There was no difference in maternal weight at conception, however by five weeks post conception MNR dams were significantly lighter ( P < 0.05). MNR resulted in significantly smaller pup size from 0.6-0.66 gestation. Ultrasound is a powerful non-invasive tool for assessing the effect of therapeutic interventions on fetal growth, allowing longitudinal measurement of fetuses. This model and method yield data applicable to the human condition without the need for animal sacrifice and will be useful in the translation of therapies for FGR into the clinic.

What's the diagnosis? Organisational culture and palliative care delivery in residential aged care in New Zealand

Organisational culture has been shown to impact on resident outcomes in residential aged care (RAC). This is particularly important given the growing number of residents with high palliative care needs. The study described herein (conducted from January 2013 to March 2014) examined survey results from a convenience sample of 46 managers, alongside interviews with a purposively selected sample of 23 bereaved family members in order to explore the perceptions of organisational culture within New Zealand RAC facilities in one large urban District Health Board. Results of the Organisational Culture Assessment Instrument (OCAI) completed by managers indicated a preference for a 'Clan' and the structured 'Hierarchy' culture. Bereaved family interviews emphasised both positive and negative aspects of communication, leadership and teamwork, and relationship with residents. Study results from both managers' OCAI survey scores and next of kin interviews indicate that while the RAC facilities are culturally oriented towards providing quality care for residents, they may face barriers to adopting organisational processes supportive of this goal.

Hospitalisation of older people before and after long-term care entry in Auckland, New Zealand

INTRODUCTION

global population projections forecast large growth in demand for long-term care (LTC) and acute hospital services for older people. Few studies report changes in hospitalisation rates before and after entry into LTC. This study compares hospitalisation rates 1 year before and after LTC entry.

METHODS

the Older Persons' Ability Level (OPAL) study was a 2008 census-type survey of LTC facilities in Auckland, New Zealand. OPAL resident hospital admissions and deaths were obtained from routinely collected national databases.

RESULTS

all 2,244 residents (66% = female) who entered LTC within 12 months prior to OPAL were included. There were 3,363 hospitalisations, 2,424 in 12 months before and 939 in 12 months after entry, and 364 deaths. In the 6 to 12 months before LTC entry, the hospitalisation rate/100 person-years was 67.3 (95% confidence interval [CI] 62.5-72.1). Weekly rates then rose steeply to over 450/100 person-years in the 6 months immediately before LTC entry. In the 6 months after LTC entry, the rate fell to 49.1 (CI 44.9-53.3; RR 0.73 (CI 0.65-0.82, P < 0.0001)) and decreased further 6 to 12 months after entry to 41.1 (CI 37.1-45.1; rate ratio [RR] 0.61 (CI 0.54-0.69, P < 0.0001)).

CONCLUSIONS

increased hospitalisations a few months before LTC entry suggest functional and medical instability precipitates LTC entry. New residents utilise hospital beds less frequently than when at home before that unstable period. Further research is needed to determine effective interventions to avoid some hospitalisations and possibly also LTC entry.

Necessary but not yet sufficient: a survey of aged residential care staff perceptions of palliative care communication, education and delivery

OBJECTIVES

Previous research has indicated that staff in aged residential care (ARC) may be unprepared for their role in palliative care provision. The need for palliative care knowledge among ARC staff has been characterised as 'pervasive'. Determining the palliative care education, communication and support needs of ARC clinical care staff is, therefore, of critical importance to the delivery of quality healthcare in this setting.

METHODS

A survey of clinical staff (n=431) in 52 ARC facilities in 1 urban district health board was conducted, using a paper-based questionnaire. Instruments included the 3-item Experiences with End of Life scale, developed measures of communication and support (13 items), support accessibility (12 items), and palliative care education (19 items).

RESULTS

Only 199 (46.2%) of staff participants reported undertaking palliative care education. Nurses were more likely to have engaged in palliative care education in comparison with healthcare assistants (HCAs) (χ²(1, N=387)=18.10, p=0.00). Participants (n=347) who wanted further education preferred an interactive, hands-on applied education (13.9%) in comparison to short topic-specific sessions/seminars (6.5%) or lecture-based courses (7.7%).

CONCLUSIONS

The study reveals an ongoing need for staff palliative care education. Results suggest the development of an integrated model of care which draws on both hospice and ARC staff expertise.

The 'Big Five'. Hypothesis generation: a multidisciplinary intervention package reduces disease-specific hospitalisations from long-term care: a post hoc analysis of the ARCHUS cluster-randomised controlled trial

INTRODUCTION

long-term care (LTC) residents have higher hospitalisation rates than non-LTC residents. Rapid decline may follow hospitalisations, hence the importance of preventing unnecessary hospitalisations. Literature describes diagnosis-specific interventions (for cardiac failure, ischaemic heart disease, chronic obstructive pulmonary disease, stroke, pneumonia-termed 'big five' diagnoses), impacting on hospitalisations of older community-dwellers, but few RCTs show reductions in acute admissions from LTC.

METHODS

LTC facilities with higher than expected hospitalisations were recruited for a cluster-randomised controlled trial (RCT) of facility-based complex, non-disease-specific, 9-month intervention comprising gerontology nurse specialist (GNS)-led staff education, facility benchmarking, GNS resident review and multidisciplinary discussion of residents selected using standard criteria. In this post hoc exploratory analysis, the outcome was acute hospitalisations for 'big five' diagnoses. Re-randomisation analyses were used for end points during months 1-14. For end points during months 4-14, proportional hazards models are adjusted for within-facility clustering.

RESULTS

we recruited 36 facilities with 1,998 residents (1,408 female; mean age 82.9 years); 1,924 were alive at 3 months. The intervention did not impact overall rates of acute hospitalisations or mortality (previously published), but resulted in fewer 'big five' admissions (RR = 0.73, 95% CI = 0.54-0.99; P = 0.043) with no significant difference in the rate of other acute admissions. When considering events occurring after 3 months (only), the intervention group were 34.7% (HR = 0.65; 95% CI = 0.49-0.88; P = 0.005) less likely to have a 'big five' acute admission than controls, with no differences in likelihood of acute admissions for other diagnoses (P = 0.96).

CONCLUSIONS

this generic intervention may reduce admissions for common conditions which the literature shows are impacted by disease-specific admission reduction strategies.

Medication use and potentially inappropriate medications in those with limited prognosis living in residential aged care

AIM

To compare the prevalence in residential aged care (RAC) of preventative and potentially inappropriate medications (PIMs) in those who died within 12 months versus those alive after 12 months.

METHODS

Firstly, a cross-sectional survey of 6196 people living in RAC in Auckland. Secondly, a research physician searched electronic hospital records in one District Health Board for a sub-sample (n = 222) of these residents. Classes of medications and dates of death were obtained from the Ministry of Health databases. Those who died versus those alive at 12 months were compared.

RESULTS

Over half of the 6196 participants received antihypertensives and/or antiplatelet agents. Cardiovascular preventative medications were significantly more common in those who died within 12 months. Seventy percent in high-level care received psychotropics. PIMs were commonly used.

CONCLUSIONS

Use of preventative medications is common in RAC, especially during the last year of life. Psychotropics are very commonly used, despite being potentially inappropriate.

Progress towards predicting 1-year mortality in older people living in residential long-term care

BACKGROUND

frail older people living in residential long-term care (LTC) have limited life expectancy. Identifying those with poor prognosis may improve management and facilitate transition to a palliative approach to care.

OBJECTIVE

to develop methods for predicting mortality in LTC.

DESIGN

a population-based cohort study.

SETTING

LTC facilities, Auckland, New Zealand.

SUBJECTS

five hundred randomly selected older people in a census-type survey of those living in LTC in 2008.

METHODS

mortality data were obtained from New Zealand Ministry of Health. Two methods for assessing mortality risk were developed using demographic, functional and health service information: (i) two geriatricians blinded to identifying data and to mortality, independently reviewed survey, medications and pre-survey hospitalisations data, and grouped residents according to perceived risk of death within 12 months; (ii) multivariate logistic regression model used the same survey and medication items as the geriatricians.

RESULTS

for the geriatricians' assessment, each quintile of perceived risk was associated with a significant increase in mortality (P < 0.001). Area under the curve (AUC) for both physicians was 0.64. The logistic regression model included age, gender, assistance with feeding and requiring night attention, all variables which are easily available from LTC records. AUC for the model was 0.70, but when validated against the entire OPAL cohort, it was 0.65. When either or both geriatrician and the model together predicted high risk of death, 1-year mortality was >50%.

CONCLUSION

two methods with the potential to identify older people with limited prognosis are described. Use of these methods allowed identification of over half of those who died within 12 months.

Dosimetry of very high energy electrons (VHEE) for radiotherapy applications: using radiochromic film measurements and Monte Carlo simulations

Very high energy electrons (VHEE) in the range from 100-250 MeV have the potential of becoming an alternative modality in radiotherapy because of their improved dosimetry properties compared with MV photons from contemporary medical linear accelerators. Due to the need for accurate dosimetry of small field size VHEE beams we have performed dose measurements using EBT2 Gafchromic® film. Calibration of the film has been carried out for beams of two different energy ranges: 20 MeV and 165 MeV from conventional radio frequency linear accelerators. In addition, EBT2 film has been used for dose measurements with 135 MeV electron beams produced by a laser-plasma wakefield accelerator. The dose response measurements and percentage depth dose profiles have been compared with calculations carried out using the general-purpose FLUKA Monte Carlo (MC) radiation transport code. The impact of induced radioactivity on film response for VHEEs has been evaluated using the MC simulations. A neutron yield of the order of 10(-5) neutrons cm(-2) per incident electron has been estimated and induced activity due to radionuclide production is found to have a negligible effect on total dose deposition and film response. Neutron and proton contribution to the equivalent doses are negligible for VHEE. The study demonstrates that EBT2 Gafchromic film is a reliable dosimeter that can be used for dosimetry of VHEE. The results indicate an energy-independent response of the dosimeter for 20 MeV and 165 MeV electron beams and has been found to be suitable for dosimetry of VHEE.