New and old hotspots for rickettsial spotted fever acquired in Tasmania, 2012-2017

OBJECTIVE

To describe the epidemiology and clinical characteristics of Tasmania-acquired rickettsial disease notified to the Department of Health in Tasmania from 2012 to 2017 inclusive.

METHODS

Data on rickettsiosis cases acquired and notified in Tasmania between 1 January 2012 and 31 December 2017 were analysed descriptively.

RESULTS

Eighteen cases of rickettsial infection notified in Tasmania 2012-17 and likely acquired in the state met one of three case definitions: 12 confirmed (67%), four probable (22%), and two possible (11%). The mean number of cases per year was 3.0 (population rate 0.6 per 100,000 population/year); 60% of cases occurred in November and December. Cases were more commonly older males. Fever, lethargy, and rash were commonly reported symptoms. Thirteen cases were likely acquired on Flinders Island, three around Great Oyster Bay and two in the Midlands.

CONCLUSIONS

This study extends our knowledge of the epidemiology of rickettsial disease in Tasmania. This is the first account including confirmed cases acquired in the Midlands of Tasmania. Implications for public health: Increased knowledge and awareness of epidemiology of rickettsial infection in Tasmania is essential for timely diagnosis and appropriate treatment. These findings bear wider relevance outside Tasmania because visitors may also be at risk.

A qualitative study of the role of Australian general practitioners in the surgical management of obesity

General practitioners (GPs) are increasingly managing patients with class 2 and 3 obesity (body mass index [BMI] > 35 and 40 kg/m² , respectively). Bariatric surgery is considered for patients with class 2 obesity and comorbidities or class 3 obesity where sustained weight loss using non-surgical interventions has not been achieved. In Australia, GPs facilitate access to surgery through referral processes, but the nature of GP involvement in bariatric pre- and post-surgery care is currently unclear. This qualitative study involved 10 in-depth interviews with GPs and 20 interviews with adults who had all undergone laparoscopic adjustable gastric banding (LAGB) for weight management in Tasmania, Australia. Interviews were transcribed and analysed thematically. Referrals for bariatric surgery commonly occurred at the patient's request or to manage comorbidity. Consistent with previous studies, for GPs, referral patterns were influenced by previous case experience and patients' financial considerations. Accessibility of surgery was also a consideration. Post-surgery, there was a lack of clarity about the role of GPs, with patients generally preferring the surgical team to manage the LAGB. In bariatric surgery, patient preference for surgery, access and comorbidity are key drivers for referral and post-surgical monitoring and support. Greater role clarity and enhanced collaboration between surgeons, GPs and patients following surgery is likely to enhance the experience and outcomes for patients.

How to measure home blood pressure: Recommendations for healthcare professionals and patients

BACKGROUND

Home blood pressure (BP) monitoring is the self-measurement of BP in the home environment. It is complementary to 24-hour ambulatory BP, for better diagnosis and management of patients with high BP. Home BP monitoring is in widespread use, but variation in monitoring protocols could lead to inaccurate assessment of BP.

OBJECTIVE

The aim of this article is to provide a practical guide (with resources) for patients and doctors on how to measure home BP according to a standardised, evidence-based protocol.

DISCUSSION

Home BP should be measured using a validated, automatic BP device (preferably with memory storage), using an appropriately sized upper arm cuff. Measurements should be taken after five minutes of seated rest and before medication, food or vigorous exercise. BP should be recorded for seven days (five days minimum) in the morning and evening (two readings each). Overall, home BP is the average systolic and diastolic BP over seven days (excluding the first day); an average of ≥135/85 mmHg is indicative of hypertension.

Evaluating the prevention of premature cessation of exclusive breastfeeding in the general practice setting during the scheduled child immunisation consultation: a pilot study

The purpose of this study was to test and evaluate the feasibility and clinical acceptability of the use of an infant feeding data collection tool during the scheduled childhood immunisation consultation, and to explore the appropriateness of this consultation as a site for a future intervention aiming to increase exclusive breastfeeding through the provision of advice and support to mothers. This descriptive exploratory (quantitative and qualitative) study used purposeful sampling to enrol five general practices in Hobart, Tasmania. General practitioners (GPs) and practice nurses (PNs) trialled and evaluated a paper-based data collection tool over a 6-week period from May through to June 2011. Twenty-two (13 GPs; 2 GP registrars and 7 PNs) participants trialled and evaluated the data collection tool (n = 54). From the evaluation questionnaire, field notes and informal interviews (n = 7), six conceptual headings emerged: setting; time pressures; resources and collaboration; mothers need to talk; professional exclusion; and lack of collaboration. The scheduled childhood immunisation consultation provides an opportunity for mothers and primary health practitioners to talk briefly about infant feeding and for the collection of infant feeding data. However, the immunisation consultation is not well suited to a breastfeeding support intervention as it is already very busy focusing on immunisation issues. Consideration should be given to the evaluation of a dedicated general practice/primary health ‘infant feeding’ consultation.

Management of hypertension in general practice--a qualitative needs assessment of Australian GPs

BACKGROUND

This study aimed to identify strategies to improve the management of hypertension in general practice.

METHODS

Four focus groups (25 general practitioners and general practice registrars) were conducted, recorded and transcribed. Common emerging themes were analysed by an iterative thematic process.

RESULTS

Four main themes were identified: uncertainty about blood pressure measurement, achieving consensus in practice, accommodating patient differences and addressing systematic barriers. General practitioners want a more standardised approach to measuring and interpreting blood pressure with consistent, valid readings taken on one device that accurately measures patients blood pressure in the 'real world'. General practitioners want to be upskilled in specific areas related to hypertension management.

DISCUSSION

To facilitate improvements in blood pressure management, the most pressing needs of this group of GPs is to reduce the uncertainty surrounding the measurement and interpretation of blood pressure readings. This study has identified that sections of existing hypertension guidelines need to be reviewed and implemented.

Ankle-Brachial Index determination and peripheral arterial disease diagnosis by an oscillometric blood pressure device in primary care: validation and diagnostic accuracy study

OBJECTIVES

To determine the level of agreement between a 'conventional' Ankle-Brachial Index (ABI) measurement (using Doppler and mercury sphygmomanometer taken by a research nurse) and a 'pragmatic' ABI measure (using an oscillometric device taken by a practice nurse) in primary care. To ascertain the utility of a pragmatic ABI measure for the diagnosis of peripheral arterial disease (PAD) in primary care.

DESIGN

Cross-sectional validation and diagnostic accuracy study. Descriptive analyses were used to investigate the agreement between the two procedures using the Bland and Altman method to determine whether the correlation between ABI readings varied systematically. Diagnostic accuracy was assessed via sensitivity, specificity, accuracy, likelihood ratios, positive and negative predictive values, with ABI readings dichotomised and Receiver Operating Curve analysis using both univariable and multivariable logistic regression.

SETTING

Primary care in metropolitan and rural Victoria, Australia between October 2009 and November 2010.

PARTICIPANTS

250 persons with cardiovascular disease (CVD) or at high risk (three or more risk factors) of CVD.

RESULTS

Despite a strong association between the two method's measurements of ABI there was poor agreement with 95% of readings within ±0.4 of the 0.9 ABI cut point. The multivariable C statistic of diagnosis of PAD was 0.89. Other diagnostic measures were sensitivity 62%, specificity 92%, positive predictive value 67%, negative predictive value 90%, accuracy 85%, positive likelihood ratio 7.3 and the negative likelihood ratio 0.42.

CONCLUSIONS

Oscillometric ABI measures by primary care nurses on a population with a 22% prevalence of PAD lacked sufficient agreement with conventional measures to be recommended for routine diagnosis of PAD. This pragmatic method may however be used as a screening tool high-risk and overt CVD patients in primary care as it can reliably exclude the condition.

Opioids for osteoarthritis? Weighing benefits and risks: a Cochrane Musculoskeletal Group review

Untreated pain is a major public health problem, but concerns about opioid misuse remain. This evidence-based look at when--or whether--opioids are indicated for OA patients will help you achieve the right balance.

Barriers to diagnosing and managing hypertension - a qualitative study in Australian general practice

BACKGROUND

Elevated blood pressure (BP) is a major modifiable risk factor. However hypertension still remains underdiagnosed, untreated or suboptimally treated. This study aimed to identify and explore barriers to initiating medication and treating elevated BP to target levels in the general practice setting.

METHODS

Six focus groups involving 30 clinicians were audio recorded, transcribed in full and analysed for common emerging themes using an iterative thematic analysis.

RESULTS

After making the decision to commence treatment, medication initiation was relatively straightforward. Clinical uncertainty about true underlying BP, distrust of measurement technology, and distrust of the evidence underpinning hypertension management were expressed. Patient age, gender and comorbidity influenced treatment strategy. Related themes included perceived patient attitude, clinical inertia, and patient centred care. Systems issues included lack of resources and lack of time.

DISCUSSION

The management of an asymptomatic chronic disease within a patient centred, encounter based primary care context can be challenging.

Perceived impact on clinical practice and logistical issues in clinical management surveys of cancer: Australian experience

BACKGROUND

In September 2004, 28 published and 17 ongoing clinical management surveys (CMS) of cancer in Australia were identified, describing the clinical management of representative series of cancer patients. The present study assessed the perceived influence of these on clinical practice and the logistical issues involved in conducting a CMS.

METHODS AND MATERIALS

Questionnaire sent to a key clinical investigator in each survey.

RESULTS

For the 28 published CMS, respondents (response rate 54%) reported that the CMS were influential in half or more of subsequent changes in the development or implementation of standard protocols, increasing specialist involvement in clinical trials, reducing variability in practice, and providing informed choice for patients. The surveys were regarded as influential in a third to half of noted changes in the use of evidence-based treatments, multidisciplinary care, and standardised collection of data. For CMS in progress, respondents (response rate 65%) reported on objectives and logistical issues, with the need for multiple ethical approvals emerging as a major issue.

CONCLUSION

CMS of cancer have played a modest but important role in stimulating and supporting improvements in clinical care in Australia. Many Australian surveys have been large and population-based and with high response rates. The recent introduction of a requirement for patient consent by some (but not all) ethical committees greatly increases the difficulties and costs of such surveys.

Oral corticosteroids--their place in the management of adhesive capsulitis

The incidence of intrinsic disorders of the shoulder presenting in general practice has been estimated to be 14.7/1000 per year with adhesive capsulitis (also termed frozen shoulder, stiff painful shoulder or periarthritis) accounting for around 20% of cases (incidence 2.4/1000 per year), but occurring more frequently in the middle aged and those with diabetes. The aetiology of pathological findings of intra-articular inflammation and fibrosis is not known. Adhesive capsulitis is diagnosed clinically based on characteristic symptoms and signs: spontaneous onset of severe shoulder pain that interferes with activities of daily living and sleep, and progressive stiffness or restriction of both active and passive movements, especially elevation and external rotation.

Evaluating the effectiveness of public health interventions: the role and activities of the Cochrane Collaboration

Public health decision makers, funders, practitioners, and the public are increasingly interested in the evidence that underpins public health decision making. Decisions in public health cover a vast range of activities. With the ever increasing global volume of primary research, knowledge and changes in thinking and approaches, quality systematic reviews of all the available research that is relevant to a particular practice or policy decision are an efficient way to synthesise and utilise research efforts. The Cochrane Collaboration includes an organised entity that aims to increase the quality and quantity of public health systematic reviews, through a range of activities. This paper aims to provide a glossary of the terms and activities related to public health and the Cochrane Collaboration.

It's in your hands: the value of handsearching in conducting systematic reviews of public health interventions

BACKGROUND

While there is an emerging evidence base in public health, the evidence can often be difficult to find. Indexing of journals in MEDLINE has assisted those conducting systematic reviews to more easily identify published studies. However, information technology and the processes associated with indexing are not infallible. Studies may not be correctly marked by study design which may mean they are missed in the electronic searching process. Handsearching for evidence of intervention effectiveness has therefore become a recognized tool in the systematic review process.

METHODS

Resources to guide handsearching activity currently are clinically focused, and may not be sensitive to the characteristics of public health studies where study terminology may differ. In response to this issue, the Cochrane Health Promotion and Public Health Field (the Field) developed and implemented a small study to recruit and support handsearchers from around the world to identify health promotion and public health trials and systematic reviews. A strategic framework was developed to recruit and support handsearchers to search six public health-related journals.

RESULTS

In total, 131 trials and 21 systematic reviews were identified. The greatest value of handsearching was found to be in supplement editions and abstract sections of journals

CONCLUSIONS

The study focused exclusively on indexed journals with the intention that tools and methods developed could be used to explore the potential for handsearching in non-indexed journals and for unpublished studies. The findings from this study will continue to support handsearching efforts and in doing so contribute to high quality systematic reviews of public health interventions.

A randomised, prospective study comparing selective laser trabeculoplasty with latanoprost for the control of intraocular pressure in ocular hypertension and open angle glaucoma

AIM

To compare 90 degrees , 180 degrees , and 360 degrees selective laser trabeculoplasty (SLT, 532 nm Nd:YAG laser) with latanoprost 0.005% for the control of intraocular pressure (IOP) in ocular hypertension (OHT) and open angle glaucoma (OAG).

METHODS

A prospective, randomised clinical trial in the Department of Ophthalmology, St Thomas's Hospital, London, and Clayton Eye Centre, Wakefield, West Yorkshire. 167 patients (167 eyes) with either OHT or OAG were randomised to receive 90 degrees , 180 degrees , and 360 degrees SLT or latanoprost 0.005% at night and were evaluated at 1 hour, 1 day, 1 week and 1, 3, 6, and 12 months.

RESULTS

The mean follow up was 10.3 months (range 1--12 months). Early, transient, complications such as postoperative ocular pain, uveitis, and 1 hour IOP spike occurred in a number of eyes after SLT, with pain being reported more frequently after 360 degrees than 90 degrees treatments (p>0.001). Success rates defined in terms of both a 20% or more and a 30% or more IOP reduction from baseline measurements with no additional antiglaucomatous interventions were better with latanoprost than 90 degrees (p<0.001) and 180 degrees SLT (p<0.02) treatments. Differences in success rates between latanoprost and 360 degrees SLT did not reach statistical significance (p<0.5). Success rates were greater with 180 degrees and 360 degrees compared to 90 degrees SLT (p<0.05). With 360 degrees SLT, 82% of eyes achieved a >20% IOP reduction and 59% a >30% reduction from baseline. Although success rates were better with 360 degrees than 180 degrees SLT treatments, differences did not reach statistical significance. There were no differences with regard to age, sex, race, pretreatment IOP, OHT versus OAG, laser power settings, and total laser energy delivered between eyes which responded, in terms of a >20% and a >30% IOP reduction, and those that did not respond with 180 degrees and 360 degrees SLT treatments.

CONCLUSIONS

Success rates were higher with latanoprost 0.005% at night than with 90 degrees and 180 degrees SLT treatments. 90 degrees SLT is generally not effective. 360 degrees SLT appears to be an effective treatment with approximately 60% of eyes achieving an IOP reduction of 30% or more. Transient anterior uveitis with associated ocular discomfort is not unusual in the first few days after SLT. Late complications causing ocular morbidity after SLT were not encountered.

Eye injuries associated with 'war games'

Eye injuries sustained by 4 patients who took part in 'war games' (in which young men shoot at each other with pistols powered by compressed carbon dioxide and firing latex rubber bullets filled with non-toxic paint) are described. In 3 cases the injuries were severe, including traumatic cataract, and 1 of these patients has a permanent macula scar with vision reduced to 6/36. Although eye protection is recommended, it was found that in the 'battle situation' combatants did not always follow regulations. Attention is drawn to the seriousness of disregarding the need for correct protective glasses.