The confidence and competence of primary school staff to administer an adrenaline auto-injector

School teachers are often inadequately prepared to use an adrenaline auto-injector (AAI), resulting in potentially dangerous treatment delays. The purpose of this study was to assess the observed competence, and self-reported confidence, of primary school teachers in the Republic of Ireland (RoI) to use an AAI. An evaluation of whether there was a link between confidence and competence was also assessed. Teachers from four primary schools in the RoI completed a questionnaire to assess their prior level of experience, training, and confidence levels with AAI administration. The four steps in administrating trainer AAI to a mannequin simulator were then assessed. A total of 61 teachers participated (out of a population of 80). The mean self-reported confidence was 1.82 out of 5 (SD = 0.96). There was no significant difference in confidence between trained and untrained participants (U = 240.5, NS). Participants who had received AAI administration training performed significantly more of the steps correctly (mean = 3.85, SD = 0.95) as compared to those who had received no training (mean = 2.97, SD = 1.10; U = 180.5, p = 0.008). There was no correlation between confidence in administrating AAI and the percentage of steps in the procedure performed correctly (rho =  -0.17, NS).  Conclusion: Improvements in readiness to administer AAIs can be achieved through the application of more effective approaches to teaching clinical skills, changes to school policies and practices, and consideration of the design of AAIs in order to make their operation safer and simpler. It is important that teachers have the confidence and competence to safely administer an AAI. What is Known: • Poor ability in adrenaline auto-injector use seen across population groups-healthcare professionals, patients, carers, and school staff • Training in the use of adrenaline auto-injectors has positive impact on competency What is New: • Irish school teachers show poor levels of competency in adrenaline auto-injector use • No observed correlation between reported confidence and competency.

Queensland Inpatient Diabetes Survey (QuIDS): patient experience survey evaluation

BACKGROUND

Measurement of inpatient experience can allow for treatment tailored to patient preferences and needs. The patient experience of diabetes care has not been explored in Queensland hospitals.

AIMS

To investigate the experiences of patients with diabetes when hospitalised using the Queensland Inpatient Diabetes Survey (QuIDS).

METHODS

In 2019 and 2021, patient experience surveys were collected as part of the statewide QuIDS, a cross-sectional study assessing the quality of inpatient care received by people with diabetes in Queensland, Australia. Patient responses were categorised and frequencies reported as percentages. Free text comments were analysed using thematic analysis methods. Pooled descriptive data were presented.

RESULTS

Responses were collected from 27 hospitals in 2019 (n = 526, 52.4% of all patients with diabetes) and 35 hospitals in 2021 (n = 709, 55.5%). Overall, patients were satisfied with their inpatient diabetes care. Areas for improvement identified by surveyed patients include the choice and timing of meals, staff knowledge about diabetes and increased diabetes self-management. Access to a specialist diabetes team was also identified as being potentially underutilised. Patient comments fell into four major themes: communication, food choices, patient autonomy and education.

CONCLUSION

Many patients reported positive inpatient experiences; however, patients also expressed dissatisfaction with their inpatient diabetes care. Our data provide unique insight and an opportunity to improve standards of care and service provision for inpatients with diabetes.

Predicting the risk of pancreatic cancer in women with new-onset diabetes mellitus

BACKGROUND AND AIM

People with new-onset diabetes mellitus (diabetes) could be a possible target population for pancreatic cancer surveillance. However, distinguishing diabetes caused by pancreatic cancer from type 2 diabetes remains challenging. We aimed to develop and validate a model to predict pancreatic cancer among women with new-onset diabetes.

METHODS

We conducted a retrospective cohort study among Australian women newly diagnosed with diabetes, using first prescription of anti-diabetic medications, sourced from administrative data, as a surrogate for the diagnosis of diabetes. The outcome was a diagnosis of pancreatic cancer within 3 years of diabetes diagnosis. We used prescription medications, severity of diabetes (i.e., change/addition of medication within 2 months after first medication), and age at diabetes diagnosis as potential predictors of pancreatic cancer.

RESULTS

Among 99 687 women aged ≥ 50 years with new-onset diabetes, 602 (0.6%) were diagnosed with pancreatic cancer within 3 years. The area under the receiver operating curve for the risk prediction model was 0.73. Age and diabetes severity were the two most influential predictors followed by beta-blockers, acid disorder drugs, and lipid-modifying agents. Using a risk threshold of 50%, sensitivity and specificity were 69% and the positive predictive value (PPV) was 1.3%.

CONCLUSIONS

Our model doubled the PPV of pancreatic cancer in women with new-onset diabetes from 0.6% to 1.3%. Age and rapid progression of diabetes were important risk factors, and pancreatic cancer occurred more commonly in women without typical risk factors for type 2 diabetes. This model could prove valuable as an initial screening tool, especially as new biomarkers emerge.

Describing the acceptability and use of an opioid stewardship self-assessment tool in real-world settings

BACKGROUND

The Stewardship Framework (Framework) was developed by an expert clinician group and was designed to provide a mechanism for continuous monitoring of improvement in opioid prescribing in acute hospitals. The aim of this study was to modify the Framework into an Opioid Stewardship Self-Assessment Tool (Self-Assessment Tool), and pilot test the acceptability and its use in a variety of acute hospital settings.

METHODS

The Framework was converted into the Self-Assessment Tool to allow hospitals to undertake a gap analysis of their current opioid stewardship activities. To participate hospitals were required to establish a small team and complete the Self-Assessment Tool. Participating sites were recruited using purposive sampling. Responses were tabulated and coded to enable assessment. 'Acceptability' was defined as the completion of the Self-Assessment Tool (response rate, proportion of questions answered) and responder feedback relating to its content. The use of the Tool was categorised based on the level of detail of responses.

RESULTS

Nineteen of the 20 facilities approached, agreed to participate. The 16 sites which established a small team to facilitate survey completion are included in the final analysis. The overall response rate was 96 % (413/432) for the (27 survey questions across 16 participating sites), 4 % (19/432) of questions were left unanswered or were not interpretable by the study team. Opportunities were identified to enhance the use of the Self-Assessment Tool, particularly to support its potential to assist reflection and planning of local strategies.

CONCLUSION

This study demonstrated that the Self-Assessment Tool was an acceptable method of assessing a facility's opioid stewardship capabilities in a real-world setting. The next iteration will be modified using the insights on how the Tool was used by study participants.

Association between unstable diabetes mellitus and risk of pancreatic cancer

BACKGROUND

Deterioration of glycaemic control in people with long-standing diabetes mellitus (diabetes) may be a possible indicator of pancreatic cancer. However, the magnitude of the association between diabetes deterioration and pancreatic cancer has received little attention.

METHODS

We conducted a matched cohort study, nested within a population-based cohort of Australian women with diabetes. Women with unstable diabetes, defined as a change in medication after a 2-year period of stable medication use, were matched by birth year to those with stable diabetes, in a 1:4 ratio. We used flexible parametric survival models to estimate hazard ratios (HRs) and 95% confidence intervals (CI).

RESULTS

We included 134,954 and 539,789 women in the unstable and stable diabetes cohorts, respectively (mean age 68 years). In total, 1,315 pancreatic cancers were diagnosed. Deterioration of stable diabetes was associated with a 2.5-fold increased risk of pancreatic cancer (HR 2.55; 95% CI 2.29-2.85). The risk was particularly high within the first year after diabetes deteriorated. HRs at 3 months, 6 months and 1 year were: 5.76 (95% CI 4.72-7.04); 4.56 (95% CI 3.81-5.46); and 3.33 (95% CI 2.86-3.89), respectively. The risk was no longer significantly different after 7 years.

CONCLUSIONS

Deterioration in glycaemic control in people with previously stable diabetes may be an indicator of pancreatic cancer, suggesting investigations of the pancreas may be appropriate. The weaker longer-term (3-7 years) association between diabetes deterioration and pancreatic cancer may indicate that poor glycaemic control can be a risk factor for pancreatic cancer.

Association between antihypertensive medicine use and risk of ovarian cancer in women aged 50 years and older

BACKGROUND

Epithelial ovarian cancer (EOC) has few modifiable risk factors. There is evidence that some antihypertensive medicines may have cancer preventive and/or therapeutic actions; therefore, we assessed the associations between use of different antihypertensive medicines and risk of specific EOC histotypes.

METHODS

Our nested case-control study of linked administrative health data included 6070 Australian women aged over 50 years diagnosed with EOC from 2004 to 2013, and 30,337 matched controls. We used multivariable conditional logistic regression to estimate odds ratios (ORs) and 95 % confidence intervals (CIs) for the association between ever use of each antihypertensive medicine group, including beta-adrenergic blockers, angiotensin converting enzyme inhibitors, angiotensin II receptor blockers, calcium channel blockers, diuretics, and alpha blockers, and the risk of EOC overall and separately for the serous, endometrioid, mucinous, clear cell and other histotypes.

RESULTS

We found that most antihypertensive medicines were not associated with risk of EOC. However, women who used calcium channel blockers had a reduced risk of serous EOC (OR= 0.89, 95 % CI:0.81,0.98) and use of combination thiazide and potassium-sparing diuretics was associated with an increased risk of endometroid EOC (OR= 2.09, 95 % CI:1.15,3.82).

CONCLUSION

Our results provide little support for a chemo-preventive role for most antihypertensives, however, the histotype-specific associations we found warrant further investigation.

Can a novel constructivist theory-informed feedback intervention reduce prescribing errors ? A pre-post study

CONTEXT

Medical interns (interns) find prescribing challenging and many report lacking readiness when commencing work. Errors in prescribing puts patients' safety at risk. Yet error rates remain high, despite education, supervision and pharmacists' contributions. Feedback on prescribing may improve performance. Yet, work-based prescribing feedback practices focus on rectifying errors. We aimed to explore if prescribing can be improved using a theory-informed feedback intervention.

METHODS

In this pre-post study, we designed and implemented a constructivist-theory informed prescribing feedback intervention, informed by Feedback-Mark 2 Theory. Interns commencing internal medicine terms in two Australian teaching hospitals were invited to engage in the feedback intervention. Their prescribing was evaluated by comparing errors per medication order of at least 30 orders per intern. Pre/baseline (weeks 1-3) were compared with post intervention (weeks 8-9). Interns' baseline prescribing audit findings were analysed and discussed at individualised feedback sessions. These sessions were with a clinical pharmacologist (Site 1) and a pharmacist educator (Site 2).

RESULTS

Eighty eight intern's prescribing over five 10-week terms was analysed from two hospitals. The frequency of prescribing errors significantly reduced at both sites after the intervention, across all five terms (p < 0.001).There were initially 1598 errors in 2750 orders (median [IQR] 0.48 [0.35-0.67] errors per order) and after the intervention 1113 errors in 2694 orders (median [IQR] 0.30 [0.17-0.50] errors per order).

CONCLUSION

Our findings suggest interns' prescribing practices may improve as a result of constructivist -theory learner centred, informed feedback with an agreed plan. This novel intervention, contributed, to a reduction in interns' prescribing errors. This study suggests new strategies for improving prescribing safety should include the design and implementation of theory-informed feedback interventions.

Opioid dispensing 2008-18: a Queensland perspective

ObjectiveThis study provides an overview of opioid dispensing in Queensland from 2008 to 2018 by recipient age, drug, oral morphine equivalent and remoteness.MethodsData were obtained from the Queensland Monitoring of Drugs of Dependence System database for 2008-18 and analysed using data from the Australian Bureau of Statistics to account for population growth. Opioid dispensing by age, drug, oral morphine equivalent and remoteness were assessed.ResultsThe number of prescriptions for Schedule 8 opioid medicines dispensed in Queensland increased from 190 to 430 per 1000 population over the study period (2.3-fold increase). Oxycodone had the largest increase in dispensing over the study period of 3.1-fold, with tapentadol increasing rapidly since initial Pharmaceutical Benefits Scheme listing in 2013 to the third most dispensed opioid by 2018. By 2018, opioid dispensing among the oldest Queenslanders, those aged 85+ years, occurred at triple the rate for those aged 65-84 years. When adjusted to report oral morphine equivalents (OME) in milligrams (mg), there has been an increase of approximately 1.9-fold over the study period. Results were also presented by geographical area, including a heatmap and analysis by remoteness. Prescriptions dispensed per 1000 population were 416 for major cities, 551 for inner regional and 445 for outer regional, and highlight that inner and outer regional areas have higher rates of prescriptions when compared to major cities (32 and 7% higher, respectively).ConclusionThis study highlights changes in opioid prescription dispensing by drug and OME, as well as the variation in dispensing rates when accounting for remoteness. Further studies to link statewide databases, and to better understand drivers for differences in dispensing by location, will provide valuable insights to further inform policy and service provision.

Perioperative Beta-Blocker Supply and Survival in Women With Epithelial Ovarian Cancer and a History of Cardiovascular Conditions

PURPOSE

Surgery for epithelial ovarian cancer (EOC) may activate stress-inflammatory responses that stimulate tumor growth and increase metastatic growth. Animal and in vitro studies have shown that inhibition of the catecholamine-induced inflammatory response via beta-adrenergic receptor blockade has antitumor potential in EOC. However, observational studies have reported mixed results. We assessed whether beta-blocker (BB) use at the time of primary ovarian cancer surgery was associated with improved survival in a large population-based study.

MATERIALS AND METHODS

Using linked administrative data, a population-based cohort of 3,844 Australian women age 50 years or older with a history of cardiovascular conditions who underwent surgery for EOC was followed for survival outcomes. The average treatment effect of selective BB (SBB) and nonselective BB (NSBB) supply at the time of surgery on survival was estimated from a causal inference perspective using covariate-balanced inverse probability of treatment weights with flexible parametric survival models that allowed for time-varying survival effects.

RESULTS

Around the time of surgery, 560 (14.5%) women were supplied a SBB and 67 (1.7%) were supplied a NSBB. At 2 years postsurgery, the survival proportion was 80% (95% CI, 68 to 88) for women dispensed NSBBs at surgery compared with 69% (95% CI, 67 to 70) for women not supplied NSBBs. The survival advantage appeared to extend to at least 8 years postsurgery. No association was observed for women dispensed a SBB around the time of surgery.

CONCLUSION

Perioperative supply of NSBBs appeared to confer a survival advantage for women age over 50 years with a history of cardiovascular conditions. Long-term clinical trials are required to confirm these findings.

The association between diabetes mellitus of different durations and risk of pancreatic cancer: an Australian national data-linkage study in women

AIMS

The bidirectional association between diabetes mellitus (DM) and pancreatic cancer (PC) is established; however, the strength of association between duration of DM and risk of PC needs further investigation.

METHODS

We conducted a case-control study nested within a population-based cohort of Australian women established using record linkage. Women diagnosed with PC from July 2007 to December 2013, were matched to five controls based on age and state of residence. DM was defined according to prescription of anti-diabetic medication from administrative prescription data. We used conditional logistic regression to calculate odds ratios (OR) and 95% confidence intervals (CI), adjusted for area-level socioeconomic status, rurality of residence, weighted comorbidity score, and predicted probability of obesity.

RESULTS

The analyses included 7,267 cases and 35,978 controls. The mean age at the time of DM diagnosis was 71 years whereas the mean age at the time of diagnosis of PC was 76 years. A history of DM of any duration was associated with a 2-fold increase in risk of PC (OR=2.12; 95%CI:1.96-2.29) compared to having no history of DM. The risk decreased with increasing duration of DM. The highest risk was in those who had recent-onset DM (OR=8.08; 95%CI:6.88-9.50 for <12 months of DM), but the risk remained elevated with ≥5 years of DM (OR=1.40; 95%CI:1.27-1.55).

CONCLUSION

The markedly increased risk of PC in those with recent-onset DM emphasises the need for further research to distinguish patients for whom new-onset DM is a manifestation of PC from those with type-2 DM. The elevated risk associated with long-standing DM suggests that preventing DM may contribute to a reduction in the incidence of PC.

Persistent opioid use after hospital discharge in Australia: a systematic review

ObjectiveThis systematic review identified studies that provided an estimate of persistent opioid use following patient discharge from hospital settings in Australia.MethodsA literature search was performed on 5 December 2020, with no date restrictions to identify studies that reported a rate of persistent opioid use following patient discharge from Australian Hospitals. The search strategy combined all terms relating to the themes 'hospital patients', 'prescribing', 'opioids' and 'Australia'. Studies that dealt solely with cancer, palliative care or addiction medicine were excluded. The databases searched in this review were Embase, PubMed, Scopus, CINAHL, and International Pharmaceutical Abstracts. Studies were assessed for bias using the Newcastle-Ottawa Scale and considered against international literature.ResultsIn total, 13 publications are included for final analysis in this review. Of these, 11 articles relate to post-surgical opioid use. With one exception, studies were of a 'good' quality. Methods of data collection in included studies were a mixture of those conducting follow up of patients directly over time and those utilising dispensing databases. Persistent opioid use among surgical patients generally ranged from 3.9 to 10.5% at between 2 and 4 months after discharge.ConclusionsHow rates of persistent opioid use following hospital encounters in Australia are established, and how long after discharge rates are reported, is heterogeneous. Literature primarily relates to post-surgical patients, with very few studies investigating other settings such as encounters with the emergency department.

Nitrogen-Based Bisphosphonate Use and Ovarian Cancer Risk in Women Aged 50 Years and Older

BACKGROUND

There are few readily modifiable risk factors for epithelial ovarian cancer; pre-clinical studies suggest bisphosphonates could have chemo-preventive actions. Our study aimed to assess the association between use of nitrogen-based bisphosphonate medicine and risk of epithelial ovarian cancer, overall and by histotype.

METHODS

We conducted a case-control study nested within a large linked administrative dataset including all Australian women enrolled for Medicare, Australia's universal health insurance scheme, between July 2002 and December 2013. We included all women with epithelial ovarian cancer diagnosed at age 50 years and older between 1st July 2004 and 31st December 2013 (n = 9,367) and randomly selected up to five controls per case, individually matched to cases by age, state of residence, area-level socioeconomic status, and remoteness of residence category (n = 46,830). We used prescription records to ascertain use of nitrogen-based bisphosphonates (ever use and duration of use), raloxifene and other osteoporosis medicines (non-nitrogen-based bisphosphonates, strontium and denosumab). We calculated adjusted odds ratios (OR) and 95% confidence intervals (CI) using conditional logistic regression.

RESULTS

Ever use of nitrogen-based bisphosphonates was associated with a reduced risk of epithelial ovarian cancer compared to non-use (OR = 0.81, 95%CI : 0.75-0.88). There was a reduced risk of both endometrioid (OR = 0.51, 95%CI : 0.33-0.79) and serous histotypes (OR = 0.84, 95%CI : 0.75-0.93), but no association with the mucinous or clear cell histotypes.

CONCLUSION

Use of nitrogen-based bisphosphonates was associated with a reduced risk of endometrioid and serous ovarian cancer. This suggests the potential for use for prevention, although validation of our findings is required.

Retrospective study of the prevalence and characteristics of adverse drug events in adults who present to an Australian emergency department

OBJECTIVE

To determine the burden, on the ED, of harm from unintentional adverse drug events (ADEs) in the community.

METHODS

A retrospective, observational study of 936 randomly selected presentations to a level 6 ED at a principal referral hospital in Brisbane, Australia, in November 2017. Clinical records were screened by a pharmacist, who identified suspected ADEs. All suspected ADEs and a random selection of presentations without ADEs were reviewed by an expert panel, which classified, by consensus: occurrence and type of ADE, contribution of ADE to presentation, severity of harm and preventability of presentation. Medication-related ED presentations (ADE-Ps) and potential ADEs were, respectively, defined as presentations directly attributable to an ADE, and medication events that occurred but did not cause the ED presentation. Descriptive data analysis was performed.

RESULTS

The median (interquartile range) age of patients was 40 (27-58) years, with 49.7% (95% confidence interval [CI] 46.5-52.9) being male. The prevalences of ADE-Ps and potential ADEs were 9.2% (95% CI 7.5-11.3) and 5.0% (95% CI 3.8-6.6), respectively. The severity of harm was classified as 'death or likely permanent harm' in 4.7% (95% CI 0.2-9.1) of ADE-Ps, 'temporary harm' (89.5%, 95% CI 83.1-96.0) and 'minimal or no harm' (5.8%, 95% CI 0.9-10.8). Most (79.1%, 95% CI 70.5-87.7) ADE-Ps were preventable.

CONCLUSIONS

There is a high burden on emergency care because of unintended medication harm in the community. Interventions to reduce such harm are likely to require a co-ordinated primary, acute and public healthcare response. The high proportion of presentations with potential ADEs indicates opportunity for harm mitigation in the ED.

Cadence discovery: study protocol for a dose-finding and mechanism of action clinical trial of sodium benzoate in people with treatment-refractory schizophrenia

Background

Schizophrenia is a persistent psychotic disorder often accompanied by severe disability and premature mortality. New pharmacological treatments are urgently needed. Sodium benzoate, a common food preservative holds potential to be an effective, accessible treatment for schizophrenia, though the optimal dosing and mechanism of action of the compound requires further investigation.

Methods

Individuals with persistent treatment-refractory schizophrenia (n=52) will be recruited. Patients will be randomised in a 1:1:1:1 ratio to receive treatment of one of three active doses (1000, 2000 or 4000 mg daily) of sodium benzoate or placebo for 6 weeks duration. The primary outcome measurement is change in the Positive and Negative Syndrome Scale (PANSS) total score. Secondary outcome measurements are PANSS subscales, Global Assessment of Function (GAF), Clinical Global Impression (CGI) and Patient Global Impression (PGI-I). Change in concentrations of peripheral amino acids (D-alanine, L-alanine, D-serine, L-serine, glycine and glutamate), plasma sodium benzoate, plasma catalase, 3-nitrotyrosine, malondialdehyde and high-sensitivity C-reactive protein (hs-CRP) will be determined as tertiary measures.

Discussion

This trial seeks to build upon previous research indicating potential efficacy of sodium benzoate for reduction of symptoms in individuals with treatment-refractory schizophrenia. The trial aims to improve the understanding of the mechanism of action of the compound.

Trial registration

Australian New Zealand Clinical Trials Registry (ANZCTR) ACTRN12621000327886. Registered on 23 March 2021.

Medication Utilisation Program, Quality Improvement and Research Pharmacist-Implementation Strategies and Preliminary Findings

Judicious use of medicines that considers evidence-based practice, together with cost-effectiveness, is a priority for all health care organisations. We describe an initiative to lead a Medication Utilisation Program, incorporating medication quality improvement and research activities. In August 2020 an advanced pharmacist position was implemented to lead the Program. The purpose was to provide oversight and facilitate initiatives promoting medication optimisation to create sustainable change in practice. A strategic plan was developed with key performance indicators. A governance structure was implemented with relevant reporting mechanisms. Strategic planning and collaboration with medical, nursing and allied health professionals has seen the successful implementation of seven codesigned medication-use evaluations and eight quality improvement projects centred around patient safety, quality and value-based care. Several research studies have been designed with subsequent commencement of pharmacists enrolled in university Research Higher Degree programs. Cost containment initiatives have realised potential savings approximating AUD 250,000. Educational programs included protocol design, ethics approvals and report writing. Key success criteria for a Medication Utilisation Program include dedicated pharmacist resources, structured governance and reporting mechanisms. Alignment of study complexity with staff experience and interdisciplinary collaboration are also critical.

Developing a framework for implementing Opioid Stewardship Programs in Australian Hospital Settings

BACKGROUND

There is growing interest in strategies to improve patient safety with prescription opioids, collectively known as Opioid stewardship (OS). This study aimed to develop a framework to facilitate the implementation of OS in the Australian acute hospital setting.

METHODS

Using a Modified Delphi Technique, a diverse stakeholder panel (including patient representatives and multidisciplinary healthcare professionals) was selected. A survey based on the results of a literature review was sent to the panel for appraisal. In line with standard Delphi methodology, the primary outcome for each element was reaching consensus of at least 70% of the participants on the importance of its inclusion in the framework. The survey allowed the participants to suggest new items for inclusion in subsequent rounds or rephrase existing items.

RESULTS

Of the 29 participants who completed the survey, a majority (23/29) were regularly involved in providing direct patient care. Twenty-six of 27 items reached the 70% threshold for agreement for importance after the first round. The remaining item not agreed upon in the initial round was modified based on comments received and reached 100% agreement on importance at the second round. There was greater than 85% agreement on importance of 24/27 items for inclusion in a framework with 8/27 reaching a 100% level of agreement.

CONCLUSION

We have developed a framework for OS in the Australian acute hospital settings which may be used to guide health services to prioritise and plan strategies to improve opioid use. This article is protected by copyright. All rights reserved.

794Bisphosphonate use and risk of ovarian cancer, a nested case-control study using national health data

Background

Epithelial ovarian cancer (EOC) is the eighth most common cancer in women, has a five-year survival of ∼45%, and very few established modifiable risk factors. Some evidence suggests that bisphosphonates could have chemopreventive benefits, but few epidemiological studies have investigated the association between bisphosphonate use and incidence of EOC.

Methods

We conducted a nested case-control study using linked administrative data. We identified 9,367 women over 50 years diagnosed with EOC (cases) from 2004 to 2013, and for each case identified five controls from the Australian Medicare Enrolment database matched by age, state, area of residence, and area-level socioeconomic disadvantage. We assessed the associations between bisphosphonate use using dispensed prescription data (ever use, duration and dose) and EOC (overall, by histotype), adjusting for comorbidities and MHT use. We conducted sensitivity analyses in women with complete ascertainment of dispensing claims and for residents of one Australian state that had linked with data linked to hospital procedures, including oophorectomy.

Results

Our analyses show an inverse association between bisphosphonate use and risk of EOC overall (OR = 0.81, 95%CI:0.75-0.88), and for endometrioid (OR = 0.51, 95%CI:0.33-0.79) and serous (OR = 0.84, 95%CI:0.75-0.93) histotypes. There was some evidence that higher dose and duration were associated with a greater reduction in risk. Results from sensitivity analyses were not appreciably different.

Conclusions

Bisphosphonate use was associated with lower risk of EOC, suggesting bisphosphonates may reduce risk of ovarian cancer development.

Key messages

Bisphosphonates may protect against development of serous and endometrioid ovarian cancers.

Cost-Effectiveness of Colchicine Prophylaxis for Gout Flares When Commencing Allopurinol

OBJECTIVE

Colchicine prophylaxis to prevent gout flares when commencing urate-lowering therapy is recommended by international rheumatology society guidelines. Whether this is a cost-effective intervention is currently unknown. Our objective was to perform a cost-effectiveness analysis using both a US cost input model and an Australian cost input model.

METHODS

This cost-effectiveness analysis was completed from the point of view of the third-party payer. We used a 2-arm decision tree with 1 arm commencing allopurinol with no colchicine prophylaxis and the other with colchicine prophylaxis. Model inputs were drawn from published literature where available. We completed a univariate and probabilistic sensitivity analysis to confirm the robust nature of the modeling. The time frame for the model was 6 months.

RESULTS

The colchicine prophylaxis arm resulted in a cost of $1,276 and 0.49 quality-adjusted life-years (QALYs), while in the placebo arm the cost was $516 and 0.47 QALYs, with an incremental cost-effectiveness ratio of $34,004 per QALY gained. In Australia, where cost of colchicine was much lower, the colchicine arm dominated the placebo ($208 [Australian] in the colchicine arm versus $415 [Australian] in the placebo). Univariate and probability sensitivity analysis demonstrated that results were robust to changes in input parameters. In the probabilistic sensitivity analysis, the probability of colchicine prophylaxis being the most cost-effective option was 93% in the US and 100% in the Australian setting.

CONCLUSION

Colchicine prophylaxis to prevent gout flares while commencing allopurinol in gout is very cost-effective.

Developing and piloting an adaptable oxycodone quality improvement strategy: steps towards opioid stewardship

Objective In recent years, there have been considerable increases in both the utilisation and reported harms of prescription opioids in Australia. This report details the development of adaptable resources, implementation and the evaluation of pilot projects that optimise oxycodone prescribing and introduce concepts of opioid stewardship into hospital settings. Methods An adaptable suite of resources, based on principles of implementation science, was developed and used to facilitate the projects. Local prescribing practice audits of oxycodone guided the development of context-sensitive educational strategies that were piloted and evaluated in a repeat audit. The primary outcome was the proportion of oxycodone prescriptions indicating tailored prescribing practices. In emergency departments (EDs), a prescription was considered tailored if it was for ≤10 tablets. In surgery, tailored prescriptions were those given to patients who had required opioids in the 24h before discharge. Results Cumulative results of the pilot projects in three EDs demonstrated improved rates of tailored oxycodone prescribing on discharge (62% vs 90%; P<0.0001). In the surgical setting of one hospital, tailored prescribing increased significantly (from 76% to 91%; P=0.013) and was accompanied by a halving of the proportion of patients receiving oxycodone prescriptions (36% vs 18%; P<0.001). Conclusions The implementation of facilitated, adaptable, prescriber-led quality improvement projects significantly improved tailored oxycodone prescribing practices and provides a platform to advance further opioid-related practice improvement in Australia. What is known about the topic? The increasing trend in opioid prescribing, misuse, harm and death in Australia, and the potential for hospital prescribing to contribute to long-term opioid use, is well known. Recent changes to the Pharmaceutical Benefits Scheme are designed to help better identify patients who need oxycodone on discharge and the quantity to prescribe, rather than default prescribing. However, how to implement tailored prescribing has not been described in detail in the Australian literature. What does this paper add? This paper adds to the mass of literature describing the 'problem' of opioid prescribing by providing a 'solution' in the form of evidence for the implementation of a facilitated and adaptable quality improvement strategy in emergency and surgical settings. The focus is not on a reduction of opioids, but rather on providing tailored pain management and opioid prescribing. What are the implications for practitioners? This paper provides a practical, pragmatic and achievable starting point for other Australian practitioners to adapt the described processes and take the first steps towards opioid stewardship in their setting.

Access to inpatient diabetes resources: hospital characteristics from the inaugural Queensland Inpatient Diabetes Survey

AIMS

To establish the prevalence of diabetes in Queensland hospitals and assess the availability of specialised diabetes staff, educational resources and policies for inpatient diabetes management, including assessing equity of access to these resources.

METHODS

The hospital capacity, prevalence of diabetes, diabetes-related resources and the availability of diabetes-related guidelines were assessed in 25 hospitals medical, surgical, mental health, high-dependency and intensive care wards of level 2-6 public hospitals across Queensland. Diabetes-dedicated staffing measured in full-time equivalents, care delivery resources, access to educational resources, standard policies and procedures for care were assessed.

RESULTS

Twenty-five hospitals included 4265 occupied beds. The median prevalence of diabetes was 22.9% (IQR 17.3-28.5%) with an average 2.9 FTE per 100 patients with diabetes (IQR 0-6.3). There was difficulty in accessing a diabetes educator in 48% (n = 12), diabetes specialist in 44% (n = 11), orthopaedic surgeon in 48% (n = 12), podiatrist in 58% (n = 14) and vascular surgeon in 64% (n = 16) of hospitals. Small hospitals had more difficulty accessing all members of the diabetes team compared to large hospitals including credentialled diabetes educators 33% (n = 4) versus 62% (n = 8) (p = 0.0001), diabetes specialists 17% (n = 2) versus 69% (n = 9) (p < 0.00001) and vascular surgeons 33% (n = 4) versus 92% (n = 12) (p < 0.000001). Diabetes-related staff education and regular nurse training was available in 40% (n = 10) of hospitals. A multi-disciplinary foot care team was available in 28% (n = 7) of hospitals.

CONCLUSIONS

Queensland's has a high prevalence of diabetes in hospitalised patients and they have limited and inequitable access to inpatient diabetes-related care. This article is protected by copyright. All rights reserved.

The Queensland Inpatient Diabetes Survey (QuIDS) 2019: the bedside audit of practice

OBJECTIVES

To assess the quality of care for patients with diabetes in Queensland hospitals, including blood glucose control, rates of hospital-acquired harm, the incidence of insulin prescription and management errors, and appropriate foot and peri-operative care.

DESIGN, SETTING

Cross-sectional audit of 27 public hospitals in Queensland: four of five tertiary/quaternary referral centres, four of seven large regional or outer metropolitan hospitals, seven of 13 smaller outer metropolitan or small regional hospitals, and 12 of 88 hospitals in rural or remote locations.

PARTICIPANTS

850 adult inpatients with diabetes mellitus in medical, surgical, mental health, high dependency, or intensive care wards.

RESULTS

Twenty-seven of 115 public hospitals that admit acute inpatients participated in the audit, including 4175 of 6652 eligible acute hospital beds in Queensland. A total of 1003 patients had diabetes (24%), and data were collected for 850 (85%). Their mean age was 65.9 years (SD, 15.1 years), 357 were women (42%), and their mean HbA_1c level was 66 mmol/mol (SD, 26 mmol/mol). Rates of good diabetes days (appropriate monitoring, no more than one blood glucose measurement greater than 10 mmol/L, and none below 5 mmol/L) were low in patients with type 1 diabetes (22.1 per 100 patient-days) or type 2 diabetes treated with insulin (40.1 per 100 patient-days); hypoglycaemia rates were high for patients with type 1 diabetes mellitus (24.1 episodes per 100 patient-days). One or more medication errors were identified for 201 patients (32%), including insulin prescribing errors for 127 patients (39%). Four patients with type 1 diabetes experienced diabetic ketoacidosis in hospital (8%); 121 patients (14%) met the criteria for review by a specialist diabetes team but were not reviewed by any diabetes specialist (medical, nursing, allied health).

CONCLUSIONS

We identified several deficits in inpatient diabetes management in Queensland, including high rates of medication error and hospital-acquired harm and low rates of appropriate glycaemic control, particularly for patients treated with insulin. These deficits require attention, and ongoing evaluation of outcomes is necessary.

A randomised trial of pharmacist-led discharge prescribing in an Australian geriatric evaluation and management service

Background Prescribing discharge medications is a potential "next step" for pharmacists in Australian hospitals, however, safety must be demonstrated via a randomised controlled study. Objective To determine if a collaborative, pharmacist led discharge prescribing model results in less patients with medication errors than conventional prescribing for both handwritten and digital prescriptions. Setting Geriatric Medical ward in a quaternary hospital, Australia Methods A prospective, single-blinded randomised controlled study of patients randomised to conventional (control) or a pharmacist-led prescribing (intervention) arms at discharge from hospital. This study had 2 phases; (1) handwritten prescribing and (2) digital prescribing. In addition, the two prescribing methods were compared. Main outcome measures The primary outcome was the percentage of patients with a medication error on their discharge prescription. Results In phase 1, 45 patients were recruited; 21 (control) and 24 (intervention). 95% of control patients and 29% in the intervention arm had at least one medication error, p < 0.0002, relative risk (RR) 0.31, confidence interval (CI) 0.16-0.58. The number of items with at least 1 error reduced from 69 to 4%; p < 0.0001, RR 0.06, CI 0.03-0.11 and fewer items had at least 1 clinically significant error (11% vs 2%, p = 0.0004, RR 0.15, CI 0.04-0.30). In phase 2, 39 patients were recruited; 18 (control) and 21 (intervention). 100% of control patients and 62% in the intervention arm had at least one medication error (p = 0.005, RR 0.62, CI 0.44-0.87). Items with at least 1 error decreased from 21 to 7% (p < 0.0001, RR 0.34, CI 0.44-0.56), there were fewer items with at least 1 clinically significant error (13% vs 5%, p < 0.003, RR 0.4, CI 0.22-0.72). There was no significant change in the primary outcome between handwritten and digital (60% vs 79%, p < 0.055). Conclusion In a geriatric setting, pharmacist-led partnered discharge prescribing results in significantly less patients with medication errors than the conventional method for both handwritten and digital methods.

Systematic review of interventions to improve safety and quality of anticoagulant prescribing for therapeutic indications for hospital inpatients

PURPOSE

Anticoagulation-associated adverse drug events are common in hospitalised patients and result in morbidity, mortality, increased length of hospital stay and higher costs of care. Many are preventable. We reviewed the literature to identify and assess interventions intended to improve safety or quality anticoagulant prescribing.

METHODS

A systematic search of EMBASE, MEDLINE, the Cochrane Library, Pretty Darn Quick-Evidence and Health Systems Evidence was undertaken to identify controlled studies assessing system-level interventions to improve prescribing of oral or parenteral therapeutic anticoagulation for any indication in hospitalised adults. Data were extracted for safety and quality outcomes, with studies grouped by intervention type for meta-analysis and narrative review.

RESULTS

Of 10,640 records screened, 19 trials evaluating 12,742 participants were included for analysis. No study specifically evaluated prescribing of low molecular weight heparins (LMWHs) or direct acting oral anticoagulants (DOACs). Our findings suggest that physician-led anticoagulation consultation services may reduce bleeding rates in high-risk patients. On meta-analysis, decision supported warfarin dosing resulted in higher proportion of time with international normalised ratio in therapeutic range (p = 0.0007). Studies of other clinical decision support systems and heparin monitoring systems did not demonstrate improved safety, and quality findings were inconsistent. Systematic education and feedback programs were not efficacious.

CONCLUSIONS

There is currently insufficient high-quality evidence to recommend any reviewed intervention, though several warrant closer evaluation. Adequately powered controlled trials assessing safety outcomes and evidence-based quality markers in high-risk patient groups and studies of interventions to improve safety of LMWH and DOAC prescribing are needed.

A systematic review of the costs and cost-effectiveness of clinical pharmacists on hospital ward rounds

Introduction: There is a lack of good quality economic evidence for the inclusion of pharmacists on hospital ward rounds in addition to, or as an alternative to, traditional ward-based clinical pharmacy services. There has been no systematic review of the cost or cost-effectiveness of pharmacists attending and contributing on ward rounds. Areas covered: A literature search was conducted in Medline, Embase, Cochrane, and CINAHL and reported in accordance with the PRISMA guidelines in May 2019. As well, a search using Google Scholar and a targeted hand search were undertaken. Studies that reported any estimate of the cost or cost-effectiveness were included if pharmacist participation on inpatient hospital ward rounds was the predominant focus of the intervention. The identified studies were subsequently screened by three reviewers who extracted data on their clinical and economic design. A bias assessment was completed using the ROBINS-I tool. Expert opinion: Seven studies were identified investigating a clinical pharmacist's inclusion on hospital ward rounds where there was a cost estimated. However, none were deemed to be a full economic evaluation and all were found to be open to a serious risk of bias. Future evaluations should include a comparator group and investigate the cost and cost savings of the service, alongside their clinical outcomes.

Maternal Metyrapone Use During Breastfeeding: Safe for the Breastfed Infant

Context

Metyrapone is an inhibitor of endogenous adrenal corticosteroid synthesis, which has been proven to be a viable option in controlling maternal serum cortisol concentrations during pregnancy. The infant exposure to maternally ingested metyrapone through breast milk is, however, largely unknown.

Case Description

We report the excretion of metyrapone into breast milk and subsequent infant exposure from a lactating woman on 250 mg of metyrapone three times daily. Due to limited supply of breast milk, the infant was fed ∼50% breast milk and 50% formula. At steady state, the average concentrations in the studied breast milk and absolute and relative infant doses were 176 µg/L, 26.45 µg/kg/d, and 0.7%, respectively, for metyrapone, and 310 µg/L, 46.52 µg/kg/d, and 1.21% for its active metabolite metyrapol. The breastfed infant was found to have a plasma metyrapone concentration of 0.05 µg/L, with no evidence of disruption to his adrenocortical axis biochemically.

Conclusion

These findings indicate that maternal metyrapone use during breastfeeding did not pose a notable risk to this breastfed infant. The infants’ exposure to metyrapone was further minimized by avoiding nursing for 2 to 3 hours after each metyrapone dose.

The impact of a pharmacist on post-take ward round prescribing and medication appropriateness

Background Medication communication and prescribing on the post-take ward round following patient admission to hospital can be suboptimal leading to worse patient outcomes. Objective To evaluate the impact of clinical pharmacist participation on the post-take ward round on the appropriateness of medication prescribing, medication communication, and overall patient health care outcomes. Setting Tertiary referral teaching hospital, Brisbane, Australia. Method A pre-post intervention study was undertaken that compared the addition of a senior clinical pharmacist attending the post-take ward was compared to usual wardbase pharmacist service, with no pharmacist present of the post-take ward round. We assessed the proportion of patients with an improvement in medication appropriateness from admission to discharge, using the START/STOPP checklists. Medication communication was assessed by the mean number of brief and in-depth discussions, with health care outcomes measured by comparing length of stay and 28-day readmission rates. Main outcome measures: Medication appropriateness according to the START/STOPP list, number and type of discussions with team members and length of stay and readmission rate. Results Two hundred and sixty patients were recruited (130 pre- and 130-post-intervention), across 23 and 20 post-take ward rounds, respectively. Post-intervention, there was increase in the proportion of patients who had an improvement medication appropriateness (pre-intervention 25.4%, post-intervention 36.9%; p = 0.004), the number of in-depth discussions about patients’ medication (1.9 ± 1.7 per patient pre-intervention, 2.7 ± 1.7 per patient post-, p < 0.001), and the number relating to high-risk medications (0.71 ± 1.1 per patient pre-intervention, to 1.2 ± 1.2 per patient post-, p < 0.05). Length of stay and 28-day mortality were unchanged. Conclusion Clinical pharmacist participation on the post-take ward round leads to improved medication-related communication and improved medication appropriateness but did not significantly improve health care outcomes.

The Cost-effectiveness of Biannual Serum Urate (SU) Monitoring after Reaching Target in Gout: A Health Economic Analysis Comparing SU Monitoring

Objective.

The 2012 American College of Rheumatology gout management guidelines recommend monitoring serum urate (SU) every 6 months after target SU has been achieved. Our objective was to determine through modeling whether this testing would be cost-effective, considering financial cost, quality of life, and estimated change in adherence.

Methods.

A cost-utility analysis was completed with a 3-arm model: (1) no regular urate monitoring; (2) annual urate monitoring; and (3) biannual urate monitoring. Inputs to the model for health-related quality of life, flare rate, and treatment location were drawn from the medical literature and modeled over a lifetime horizon.

Results.

No monitoring was the least costly (Australian$6974) but least effective [13.51 quality-adjusted life-yrs (QALY)], while annual urate monitoring [A$7117; 13.53 QALY; incremental cost-effectiveness ratio (ICER) A$13,678/QALY gained] and biannual monitoring [A$7298; 13.54 QALY; ICER A$15,420 per QALY gained] were both cost-effective alternatives in base case analysis. Sensitivity analysis on both an individual component level and a probabilistic sensitivity analysis (PSA) demonstrated that the result was robust to changes in input variables. An improvement in adherence of ≥ 3.5% with biannual monitoring was all that was required to demonstrate cost-effectiveness. In PSA, the probability of biannual monitoring was 78%, no monitoring was 20%, and annual monitoring was 2%.

Conclusion.

The results suggest that biannual SU monitoring after attaining target SU is the most cost-effective, compared with no testing and annual testing.

Pilot feasibility study to detect mesenchymal stem cell biomarkers of bronchopulmonary dysplasia in the tracheal aspirate fluid of preterm infants

OBJECTIVE

This study aimed to detect novel mesenchymal stem cell peptides/biomarkers of bronchopulmonary dysplasia (BPD) in the tracheal aspirate fluid (TAF) of preterm infants.

STUDY DESIGN

Participants included infants less than 32 weeks' gestational age or birth weight under 1500 grams who required endotracheal intubation and mechanical ventilation within first 24 hours of life. TAF sample collection was performed at the time of the first clinically indicated routine suctioning. Standardization curves for human levels of osteopontin (Opn), macrophage colony stimulating factor 1 (Csf1), transforming growth factor beta 1 (TGF-β1), and secretory immunoglobulin A (sIgA) were generated for 15 enrolled participants.

RESULTS

We demonstrated that stem cell biomarkers are secreted into the TAF of preterm infants and their concentrations can be easily measured during the first week of life.

CONCLUSIONS

Further studies are warranted to determine a causal relationship between these biomarkers and BPD development and severity.

Prescribing and medication communication on the post-take ward round

Gaps in communication between medical officers and poor planning are associated with prescribing errors and may result in patient harm. This study describes medication communication on post-take ward rounds (PTWR). Over 6 weeks on 24 PTWR, 130 patients, prescribed 1244 medications, were observed. Of these, 811 (65%) medications were discussed, with 249 discussions (relating to 126 medications) being 'in-depth'. Of 191 planned medication-related actions, 38 (20%) were not implemented by the end of the PTWR and 21 (11%) by time of discharge from hospital. This study suggests that the level of medication communication and subsequent actions are suboptimal. Processes to improve this situation should be explored.

New oral anticoagulants: appropriateness of prescribing in real-world setting

BACKGROUND

The new oral anticoagulants (NOAC) have been extensively studied in the clinical trial setting; however, concerns remain about the safety of prescribing in the elderly and patients with renal impairment.

AIM

The aim of this study was to assess the appropriateness of NOAC prescribing in a real-world setting in terms of patient selection and to compare patient demographics to those included in pivotal clinical trials.

METHODS

One hundred and seventy-six patients from three tertiary university teaching hospitals were identified over 3 months in 2014.

RESULTS

Median age of the cohort was 74 years (interquartile range: 61-81 years), with a range of 23-96 years. Overall, 34% of the study population were prescribed a NOAC inappropriately. Of these, treatment was contraindicated in 40%, predominantly due to severe renal impairment, 22% were prescribed an excessively high dose, while 38% were under dosed. Although community-initiated patients had poorer renal function (glomerular filtration rate 91.7 ± 55.7 vs 69.3 ± 38.9, P = 0.024), appropriateness of prescription was no different compared to hospital-initiated patients (78% during admission cf. 61% prior, P = 0.061). Appropriate prescribing was better in patients with venous thromboembolism compared to AF (85% appropriate cf. 60%, P = 0.021).

CONCLUSION

Our findings imply that there remains considerable uncertainty about appropriate prescribing and dosing of NOAC, particularly in patients with impaired renal function. We recommend judicious prescribing and regular monitoring of renal function in patients at high risk of complications from NOAC therapy.

Frailty and Geriatric Syndromes in Vascular Surgical Ward Patients

BACKGROUND

Preoperative frailty is an important predictor of poor outcomes but the relationship between frailty and geriatric syndromes is less clear. The aims of this study were to describe the prevalence of frailty and incidence of geriatric syndromes in a cohort of older vascular surgical ward patients, and investigate the association of frailty and other key risk factors with the occurrence of one or more geriatric syndromes (delirium, functional decline, falls, and/or pressure ulcers) and two hospital outcomes (acute length of stay and discharge destination).

METHODS

This prospective cohort study was conducted in a vascular surgical ward in a tertiary teaching hospital in Brisbane, Australia. Consecutive patients aged ≥65 years, admitted for ≥72 hr, were eligible for inclusion. Frailty was defined as one or more of functional dependency, cognitive impairment, or nutritional impairment at admission. Delirium was identified using the Confusion Assessment Method and a validated chart extraction tool. Functional decline from admission to discharge was identified from daily nursing documentation of activities of daily living. Falls were identified according to documentation in the medical record cross-checked with the incident reporting system. Pressure ulcers, acute length of stay, and discharge destination were identified by documentation in the medical record. Risk factors associated with geriatric syndromes, acute length of stay, and discharge destination were assessed using multivariable logistic regression models.

RESULTS

Of 110 participants, 43 (39%) patients were frail and geriatric syndromes occurred in 40 (36%). Functional decline occurred in 25% of participants, followed by delirium (20%), pressure ulcers (12%), and falls (4%). In multivariable logistic analysis, frailty [odds ratio (OR) 6.7, 95% confidence interval (CI) 2.0-22.1, P = 0.002], nonelective admission (OR 7.2, 95% CI 2.2-25.3, P = 0.002), higher physiological severity (OR 5.5, 95% CI 1.1-26.8, P = 0.03), and operative severity (OR 4.6, 95% CI 1.2-17.7, P = 0.03) increased the likelihood of any geriatric syndrome. Frailty was an important predictor of longer length of stay (OR 2.6, 95% CI 1.0-6.8, P = 0.06) and discharge destination (OR 4.2, 95% CI 1.2-13.8, P = 0.02). Nonelective admission significantly increased the likelihood of discharge to a higher level of care (OR 5.3, 95% CI 1.3-21.6, P = 0.02).

CONCLUSIONS

Frailty and geriatric syndromes were common in elderly vascular surgical ward patients. Frail patients and nonelective admissions were more likely to develop geriatric syndromes, have a longer length of stay, and be discharged to a higher level of care.

Outcomes in patients with gram-negative sepsis treated with gentamicin

OBJECTIVE

Recent changes to therapeutic drug monitoring (TDM) of gentamicin have been advocated in Australia. It remains uncertain whether these will have an effect on hard clinical endpoints. The aim of this study was to determine clinical outcomes in patients with gram-negative infections treated with gentamicin.

METHODS

Microbiology results of patients with confirmed gram-negative cultures were retrospectively reviewed and those treated with gentamicin included. Medical records were reviewed and patient demographics, diagnosis, renal function, comorbidities, gentamicin doses, duration, monitoring, concomitant antibiotics, antimicrobial sensitivity and clinical and microbiological outcomes recorded.

RESULTS

A total of 100 patients were included in the study: 52% were male, median age 64 years (17-97). Total body weight was recorded in 56% (median 74.5 kg, range 35-134 kg). Most patients had two or more important comorbidities. A total of 72% received empiric and 28% directed treatment. The organism was identified on blood culture in 45%, urine culture in 43% and aspiration of liver abscess in 12%; 95% of organisms were sensitive to gentamicin. Baseline renal function was normal in 62%. Mean gentamicin dose was 3.9 ± 0.9 mg/kg and mean duration 2.9 ± 2.5 days. Only 21% had optimal TDM. Clinical outcome was favourable in 90%. There were no cases of preventable serious toxicity.

CONCLUSIONS

Despite the modest doses of gentamicin used in an elderly population with comorbidities, as well as the absence of optimal TDM, outcomes were favourable without preventable serious toxicity.

Experience with low-dose rituximab in off-label indications at two tertiary hospitals

BACKGROUND

Rituximab is a monoclonal antibody directed against B cells and is increasingly used to treat a variety of autoimmune conditions. Most published evidence reporting the successful use of rituximab in off-label indications has empirically used a high-dose regimen (either 375 mg/m(2) weekly for 4 weeks, or 1000 mg × 2), which is the approved course of treatment for lymphoma and rheumatoid arthritis patients.

AIMS

The aims of this report are to review the indications, outcomes and adverse events of low-dose (500 mg twice, given 1-2 weeks apart), off-label use of rituximab in our institutions, and to review the available evidence.

METHODS

We performed a retrospective audit of the off-label use of low-dose rituximab at two university teaching, tertiary referral hospitals, from mid-2008 until the end of 2011.

RESULTS

Off-label rituximab was given to 52 patients (53 indications) across a heterogeneous group of autoimmune conditions. Outcomes were known for 46 conditions (affecting 45 patients), and of these, complete responses were observed in 16 (35%) conditions and a further 19 (41%) had a partial response. There was no response to rituximab in 11 (24%) patients. There were eight significant adverse events, mostly related to infectious complications.

CONCLUSION

This case series suggests that low-dose courses of rituximab can be used off-label to treat several severe and/or refractory immunological disorders with a reasonable safety profile; however, further trials are required in many off-label indications.

A lifetime of migration

Careers in any profession can take a curious path. One small choice can seemingly change a career path and chance encounters open doors to new opportunities that take a person in new, unforeseen directions. For Chris Wylie this has certainly been the case. This interview highlights how someone can build a successful career in science, how that career can be fulfilling and fun and at the same time, it is possible to have a family and a life outside of science. Chris has certainly had success in science, having built very successful labs at many institutions and helped found and grow world-renowned research centers. He gives great credit for his success to his longtime collaborator and wife, Janet Heasman. Although they have indeed made major contributions to their chosen fields of study, what is remarkable is the number of trainees that they have had pass through their labs. Ultimately for any scientist that might be their greatest legacy and it is obvious the impact that great mentors such as J.Z. Young and Ruth Bellairs had on how Chris ran his own lab. As Chris moves on to the next stage of his career, it seems likely that he will pursue it with as much vigor and passion as he pursued his love of scientific research and have a lot of fun. I can't wait for the next interview!

'Just a repeat' - When drug monitoring is indicated

BACKGROUND

Therapeutic drug monitoring, the measurement of plasma or blood concentrations of a medication to assist the management of patients, is commonly performed by general practitioners and specialists alike. However, established therapeutic ranges are only available for a limited number of medications.

OBJECTIVE

This article outlines the basics of therapeutic drug monitoring,including the drugs for which monitoring is suitable and when, how and why it should be performed in general practice.

DISCUSSION

Therapeutic drug monitoring is generally only indicated when medications have specific characteristics (eg. a narrow therapeutic index), where there is an established therapeutic range, where the consequences of undertreatment cannot be recognised clinically and can be serious (eg. seizure) and/or if toxicity is suspected. Commonly used medications where therapeutic drug monitoring is indicated include some antiepileptic drugs (eg. phenytoin, carbamazepine), lithium and digoxin. For the majority of medications, therapeutic drug monitoring is unlikely to assist management and should not be performed.