Enhancing Pain Management for Open Inguinal Hernia Repair With a Novel Long-Acting Bupivacaine Drug Device (Xaracoll®) in Multimodal Pain Control: A Quality Improvement Initiative to Reduce Post-Operative Opioid Prescribing

Background Xaracoll® is a Food and Drug Administration (FDA) approved Type 1 Bovine collagen-based bupivacaine hydrochloride (HCl) implant developed to provide postoperative pain management for up to 24 hours after open inguinal hernia repair in adults. This retrospective review examined the efficacy of Xaracoll® in the management of postoperative pain compared to injectable Bupivacaine. Methods This retrospective study examines 54 patients who underwent unilateral open inguinal hernia repair by a single surgeon over three years. The control group consisted of 36 patients who received injectable Bupivacaine as the local anesthetic. Eighteen patients received the Xaracoll® drug device intra-operatively following the FDA-approved manufacturer's guidelines. Intra-operative analgesics administered and quantified by oral morphine equivalents (OME), opioid administration for pain control postoperatively, opioid prescriptions upon discharge, postoperative pain scores, and turnaround time (TAT) were compared. Results The use of Xaracoll® in inguinal hernia repair is associated with a decrease in the rate of opioid administration in the post-anesthesia care unit (PACU) (22.2% vs. 52.8%; p = 0.043). In addition, patients requiring opioids in the outpatient setting needed significantly less OME in the Xaracoll® group compared to the control group (52.50 vs. 136.15; p < .001). Conclusion This study demonstrates compelling evidence that Xaracoll® is a useful analgesia adjuvant for inguinal hernia repair, significantly reducing the need for opioids in the PACU and decreasing doses of opioid medications upon discharge. Xaracoll® is effective in minimizing postoperative pain and opioid medication dosages upon discharge as part of a multimodal approach to pain and improving patient experience. Further research is warranted to evaluate Xaracoll®'s role in pain control in the PACU and on discharge.

Sexually Transmitted Infections and the Risk of Reinfection Within 12 Months: A Population-Based Cohort

BACKGROUND

Chlamydia, gonorrhea, and syphilis are common sexually transmitted infections that disproportionately affect specific groups in New Zealand (NZ). Predictors of reinfection are not well studied in NZ but could inform public health strategies to decrease sexually transmitted infection (STI) incidence.

METHODS

New Zealand-wide chlamydia, gonorrhea, and syphilis cases during 2019 were identified using nationally collected data. Cases were followed-up to identify reinfection with the same STI within 12 months of initial infections. Logistic regression models were used to identify predictors for each STI reinfection.

RESULTS

Determinants identified for increased odds of chlamydia reinfection were age groups 16-19 and 20-24 years, females, Māori and Pacific peoples, cases in the Northern region, and cases with at least one test before the initial infection. Age 40 years and older was associated with lower odds of gonorrhea reinfection, as was being of Asian ethnicity, living in Midland or Southern regions, and reporting heterosexual behavior. Region was the only statistically significant predictor for syphilis reinfection, with higher odds of reinfection for people living in the Central region.

CONCLUSIONS

Our findings reflect disproportionate STI rates for some groups in NZ, with younger age groups, Māori and Pacific peoples, men who have sex with men, and people living in the Northern region experiencing higher odds of reinfection. Groups identified with higher odds for reinfection require increased access to culturally responsive health services to treat, understand, and prevent possible reinfection. Changes to current public health strategies could include culturally specific behavioral counseling, and improvements to and adherence to effective contract tracing.

Complications and Healthcare Costs Associated With the First Year Following Colostomy and Ileostomy Formation: A Retrospective Study

PURPOSE

The purpose of this study was to evaluate clinical and economic outcomes during the first year following ostomy formation.

DESIGN

Single-center retrospective audit.

SUBJECTS AND SETTING

The sample comprised 200 patients who underwent surgery leading to ileostomy or colostomy at a large English National Health Service (NHS) Trust.

METHODS

Clinical complications, medicine prescriptions, and interactions with healthcare services were reported over 12 months postsurgery, and interactions with the NHS were matched to the closest NHS unit cost to determine mean patient cost.

RESULTS

The most common ostomy-related surgical site complications were high output (35.0%; n = 70), followed by moderate/severe peristomal skin complications (24.5%; n = 49) and bleeding (23.5%; n = 47). Ostomy management-related complications included general difficulties with ostomy management (50.0%; n = 100) and leakage-related mild peristomal skin issues (48.5%; n = 97). Clinical complication rates were highest in the first quarter following ostomy formation, except parastomal hernia, which increased in incidence over time. Ileostomy patients more frequently experienced high output, acute renal failure, and ostomy management-related complications and had increased length of inpatient admission. However, healthcare resource use was high in both groups, with a median of 13 inpatient admission days and 12 outpatient contacts overall within the first year. Mean cost per patient was £20,444.60 (US $26,018.41); 90.5% of these costs were attributed to ostomy-related factors.

CONCLUSIONS

Patients are likely to experience at least one clinical complication following intestinal ostomy formation and have multiple interactions with the NHS. While a number of complications are more frequent in patients with ileostomies, both groups experienced considerable costs within the first year following surgery associated with ostomy management and recovery.

Fat mass, weight and body shape changes at menopause - causes and consequences: a narrative review

In addition to age-related weight gain, menopause adds additional challenges for women with the occurrence of significant metabolic alterations and central and visceral fat redistribution. The changes in body composition then influence risks of cardiovascular disease, metabolic disruption, cancer, fracture, lung disease, sexual dysfunction, mental health disorders and dementia. They may also heighten the severity of vasomotor symptoms. Treatment of these changes requires a flexible long-term strategy. This narrative review explores the pathogenesis of the metabolic changes at menopause and effective management options.

Service user perspectives on social prescribing services for mental health in the UK: a systematic review

AIM

To thematically synthesise adult service users' perspectives on how UK-based social prescribing services support them with their mental health management.

METHODS

Nine databases were systematically searched up to March 2022. Eligible studies were qualitative or mixed methods studies involving participants aged ⩾ 18 years accessing social prescribing services primarily for mental health reasons. Thematic synthesis was applied to qualitative data to create descriptive and analytical themes.

RESULTS

51,965 articles were identified from electronic searches. Six studies were included in the review (n = 220 participants) with good methodological quality. Five studies utilised a link worker referral model, and one study a direct referral model. Modal reasons for referral were social isolation and/or loneliness (n = 4 studies). Two analytical themes were formulated from seven descriptive themes: (1) person-centred care was key to delivery and (2) creating an environment for personal change and development.

CONCLUSIONS

This review provides a synthesis of the qualitative evidence on service users' experiences of accessing and using social prescribing services to support their mental health management. Adherence to principles of person-centred care and addressing the holistic needs of service users (including devoting attention to the quality of the therapeutic environment) are important for design and delivery of social prescribing services. This will optimise service user satisfaction and other outcomes that matter to them.

Methylomic biomarkers of lithium response in bipolar disorder: a clinical utility study

BACKGROUND

Response to lithium (Li) is highly variable in bipolar disorders (BD). Despite decades of research, no clinical predictor(s) of response to Li prophylaxis have been consistently identified. Recently, we developed epigenetic Methylation Specific High-Resolution Melting (MS-HRM) assays able to discriminate good responders (GR) from non-responders (NR) to Li in individuals with BD type 1 (BD-I). This study examined whether a combination of clinical and epigenetic markers can distinguish NR from other types of Li responders.

METHODS

We recorded clinical variables that are potentially associated with Li response in 64 individuals with BD-I. MS-HRM assays were performed on DNA isolated from peripheral blood. We used backward stepwise logistic regression analyses, followed by receiver operating characteristic (ROC) curve analysis to estimate the performance of the clinical variables, alone then in combination with the epigenetic biomarkers, to identify GR and partial responders (PaR) vs NR.

RESULTS

Polarity at onset, psychotic symptoms at onset and family history of BD classified correctly 70% of individuals according to their Li response (PaR + GR = 86%; NR = 35%). When combined with the epigenetic biomarkers, these three clinical variables plus alcohol misuse (and one DMR: Differentially Methylated Region) correctly classified 86% of individuals, improving the prediction of PaR + GR (93%) and of NR (70%). The ROC analysis demonstrated an improvement in the area under the curve from 0.75 (clinical variables alone) to 0.87 (combination of clinical and epigenetic markers).

CONCLUSIONS

Combining clinical predictors and DNA methylation markers of Li response may have greater utility in clinical practice than relying on clinical characteristics alone.

The association between iron deficiency and outcomes: a secondary analysis of the intravenous iron therapy to treat iron deficiency anaemia in patients undergoing major abdominal surgery (PREVENTT) trial

In the intravenous iron therapy to treat iron deficiency anaemia in patients undergoing major abdominal surgery (PREVENTT) trial, the use of intravenous iron did not reduce the need for blood transfusion or reduce patient complications or length of hospital stay. As part of the trial protocol, serum was collected at randomisation and on the day of surgery. These samples were analysed in a central laboratory for markers of iron deficiency. We performed a secondary analysis to explore the potential interactions between pre-operative markers of iron deficiency and intervention status on the trial outcome measures. Absolute iron deficiency was defined as ferritin <30 μg.l^-1 ; functional iron deficiency as ferritin 30-100 μg.l^-1 or transferrin saturation < 20%; and the remainder as non-iron deficient. Interactions were estimated using generalised linear models that included different subgroup indicators of baseline iron status. Co-primary endpoints were blood transfusion or death and number of blood transfusions, from randomisation to 30 days postoperatively. Secondary endpoints included peri-operative change in haemoglobin, postoperative complications and length of hospital stay. Most patients had iron deficiency (369/452 [82%]) at randomisation; one-third had absolute iron deficiency (144/452 [32%]) and half had functional iron deficiency (225/452 [50%]). The change in pre-operative haemoglobin with intravenous iron compared with placebo was greatest in patients with absolute iron deficiency, mean difference 8.9 g.l^-1 , 95%CI 5.3-12.5; moderate in functional iron deficiency, mean difference 2.8 g.l^-1 , 95%CI -0.1 to 5.7; and with little change seen in those patients who were non-iron deficient. Subgroup analyses did not suggest that intravenous iron compared with placebo reduced the likelihood of death or blood transfusion at 30 days differentially across subgroups according to baseline ferritin (p = 0.33 for interaction), transferrin saturation (p = 0.13) or in combination (p = 0.45), or for the number of blood transfusions (p = 0.06, 0.29, and 0.39, respectively). There was no beneficial effect of the use of intravenous iron compared with placebo, regardless of the metrics to diagnose iron deficiency, on postoperative complications or length of hospital stay.

A systematic review of interventions in the early course of bipolar disorder I or II: a report of the International Society for Bipolar Disorders Taskforce on early intervention

BACKGROUND

Given the likelihood of progressive illness in bipolar disorder (BD), it is important to understand the benefits and risks of interventions administered early in illness course. We conducted a systematic review of the effectiveness of interventions in the early course of BD I or II.

METHODS

We completed a systematic search on MEDLINE, PsycINFO, EMBASE, the Cochrane Central Register of Controlled Trials, CINAHL and Google Scholar from 1/1/1979 till 14/9/2022. We included controlled trials examining intervention effects on symptomatic, course, functional and tolerability outcomes of patients in the 'early course' of BD I or II. We classified patients to be in early course if they (a) were seeking help for the first time for a manic episode, (b) had a lifetime history of up to 3 manic episodes, or (c) had up to 6 lifetime mood episodes. Evidence quality was assessed using the GRADE approach.

RESULTS

From 4135 unique publications we included 25 reports representing 2212 participants in 16 randomized studies, and 17,714 participants from nine non-randomized studies. Available evidence suggested that in early illness course, lithium use was associated with lower recurrence risk compared with other mood stabilizers. Mood stabilizers were also associated with better global functioning, compared with the use of antipsychotics in the medium term. While summative findings regarding psychological therapies were limited by heterogeneity, family-focused and cognitive-behavioral interventions were associated with reduced recurrence risk or improved symptomatic outcomes. There was some evidence that the same pharmacological interventions were more efficacious in preventing recurrences when utilized in earlier rather than later illness course.

CONCLUSIONS AND RECOMMENDATIONS

While there are promising initial findings, there is a need for more adequately powered trials to examine the efficacy and tolerability of interventions in youth and adults in early illness course. Specifically, there is a compelling need to compare the relative benefits of lithium with other pharmacological agents in preventing recurrences. In addition to symptomatic outcomes, there should be a greater focus on functional impact and tolerability. Effective pharmacological and psychological interventions should be offered to those in early course of BD, balancing potential risks using shared decision-making approaches.

547 Postoperative Outcomes Are Significantly Worse Among Patients Undergoing Repair of Ruptured Versus Unruptured Iliac Artery Aneurysms – a 10-Year Longitudinal Cohort Study

Aim

The European Society for Vascular Surgery defines iliac artery aneurysms (IAA) as beyond 1.5 times its normal diameter. Common iliac arteries (CIA) beyond 1.8cm in men and 1.5cm in women are considered aneurysmal. This study aimed to assess outcomes following IAA rupture as their natural history is poorly understood and treatment recommendations based on low-level evidence.

Method

Patients with IAAs at a single vascular centre between 1st January 2010 and 31st August 2021 were identified from a prospectively collected departmental database and Caldicott-approved data collection performed. The primary outcomes included aneurysm rupture, rupture diameter, post-operative complications, 30-day, 1-year and 5-year mortality rates. Statistical analysis with SPSS® was performed using chi-squared tests.

Results

Of 203 patients included, 90.6% were men and median(IQR) age at detection was 77 (71–83). Co-morbidities included hypertension (54.2%), hyperlipidaemia (42.9%) and ischaemic heart disease (35.5%). IAA were in the CIA (85.2%), IIA (21.7%) and EIA (2.0%), mostly asymptomatic (78.8%). Overall IAA rupture rate was 7.9% with CIA (81.2%) and EIA (18.8%). Mean (SD) diameters at rupture were 4.6 (2.4)cm for CIA and 4.6 (3.0)cm for IIA. Post-operative major adverse cardiovascular events (MACE) more frequently occurred following repair of ruptured compared to unruptured IAA (33.3% vs 3.5%, p=.011). Mortality at 30-days, 1-year and 5-years postoperatively were higher following repair of ruptured vs unruptured aneurysms (88.9%, 88.9%, 100% vs 1.2%, 10.6%, 36.1% respectively).

Conclusions

Early detection and elective treatment of IAA aneurysms before they approach 4.6cm may reduce rupture risk, morbidity and mortality associated with emergency repair following rupture.

548 A 10-Year Longitudinal Cohort Study Assessing Growth Rates and Surveillance Intervals for Common Iliac Artery Aneurysms

Aim

The European Society for Vascular Surgery defines common iliac artery (CIA) aneurysms as greater than 1.8cm in men and 1.5cm in women. Their reported growth rate is 1–4mm/year depending on their diameter. This study aimed to assess the natural history and surveillance intervals for CIA aneurysms as intervention threshold is based on low-quality evidence.

Method

Patients diagnosed with an IAA at a single vascular centre between 1st January 2010 and 31st August 2021 were identified from a prospectively collected departmental database and Caldicott-approved data collection performed. The primary outcomes included diameter-based mean aneurysm growth rates and median surveillance intervals. Statistical analysis with SPSS® was performed using chi-squared tests.

Results

Of the 203 patients included, 90.6% were men and median (IQR) age at detection was 77 (71–83). IAA were located in the CIA (85.2%), IIA (21.7%) and EIA (2.0%) with the majority being asymptomatic (78.8%). CT was most frequently used as the imaging modality for IAA surveillance (66.3%), followed by ultrasound scan (29.8%) and MRA (3.9%). Growth rate for CIA aneurysms measuring 1.0–1.9cm were -2.1mm/year, 2.0–2.9cm were 0.8mm/year, 3.0–3.9cm were 3.5mm/year, 4.0–4.9cm were 9.4mm/year, 5.0–5.9cm were 2.9mm/year and &gt;6.0cm were 13.8mm/year. Median surveillance intervals for CIA aneurysms at 1.0–1.9cm were 12-monthly, 2.0–2.9cm were 11-monthly, 3.0–3.9cm were 5-monthly, 4.0–4.9cm were 5-monthly, 5.0–5.9cm were 5.5-monthly and &gt;6.0cm were 14.5-monthly. Mean(SD) CIA diameter at rupture was 4.6 (2.4)cm.

Conclusions

CIA aneurysms demonstrate faster growth rates as they enlarge and may require more frequent clinical assessments, surveillance, and consideration for repair prior to rupture.

Search for Subsolar-Mass Binaries in the First Half of Advanced LIGO's and Advanced Virgo's Third Observing Run

We report on a search for compact binary coalescences where at least one binary component has a mass between 0.2  M_{⊙} and 1.0  M_{⊙} in Advanced LIGO and Advanced Virgo data collected between 1 April 2019 1500 UTC and 1 October 2019 1500 UTC. We extend our previous analyses in two main ways: we include data from the Virgo detector and we allow for more unequal mass systems, with mass ratio q≥0.1. We do not report any gravitational-wave candidates. The most significant trigger has a false alarm rate of 0.14  yr^{-1}. This implies an upper limit on the merger rate of subsolar binaries in the range [220-24200]  Gpc^{-3} yr^{-1}, depending on the chirp mass of the binary. We use this upper limit to derive astrophysical constraints on two phenomenological models that could produce subsolar-mass compact objects. One is an isotropic distribution of equal-mass primordial black holes. Using this model, we find that the fraction of dark matter in primordial black holes in the mass range 0.2  M_{⊙}<m_{PBH}<1.0  M_{⊙} is f_{PBH}≡Ω_{PBH}/Ω_{DM}≲6%. This improves existing constraints on primordial black hole abundance by a factor of ∼3. The other is a dissipative dark matter model, in which fermionic dark matter can collapse and form black holes. The upper limit on the fraction of dark matter black holes depends on the minimum mass of the black holes that can be formed: the most constraining result is obtained at M_{min}=1  M_{⊙}, where f_{DBH}≡Ω_{DBH}/Ω_{DM}≲0.003%. These are the first constraints placed on dissipative dark models by subsolar-mass analyses.

O069 Infra-inguinal bypass graft surveillance is an opportunity to optimise statin and antiplatelet therapy to reduce 12-month major amputation and mortality rates

Introduction

Infra-inguinal bypass graft failure within the first two postoperative years can result from stenotic lesions within the conduit and near anastomosis. This study assesses graft surveillance uptake, patency, amputation and death rates among infra-inguinal bypass surgery patients at 1, 6 and 12-months postoperatively.

Methods

Patients undergoing infra-inguinal bypass at a single vascular centre between 1st January 2018 and 31st December 2019 were identified from the prospectively collected database. Primary outcomes at 1, 6 and 12-months postoperatively included: duplex-ultrasound (DUS) surveillance uptake, patency, major amputations and death rates. Statistical analysis with SPSS® was performed using chi-squared tests and paired sample t-tests.

Results

Of the 91 patients included, 79.1% were men and median (IQR) age was 71(62–76). At 1, 6 and 12 months, DUS uptake was 74.2%, 77.5% and 73.3% respectively, primary-assisted patency rates were 88.2%, 78.8% and 65.3% respectively and secondary patency rates were 97.6%, 96.3% and 96.3% respectively. Major amputation rates at 1, 6 and 12 months were 5.4%, 8.6%, 8.6% respectively. Death rates at 1, 6 and 12 months were 3.2%, 5.4% and 10.8% respectively. Patients on statin therapy post-operatively had lower 12-month mortality than those not on statin therapy (7.7% vs 30.0%, p=.028). Major amputation rate at 12 months was lower among patients prescribed antiplatelet therapy (6.3% vs 40%, p=.008).

Conclusion

DUS graft surveillance is a vital opportunity to adequately optimise statin and antiplatelet therapy post-revascularisation to reduce 12-month major amputation and mortality rates.

Take-home message

Infra-inguinal bypass graft surveillance is an opportunity to optimise statin and antiplatelet therapy to reduce 12-month major amputation and mortality rates.

O-008 Low grade blastocysts result in healthy live births and should not be discarded

Study question

Does transfer of low grade blastocysts results in acceptable live birth rates the birth of healthy babies?

Summary answer

While BC/CB/CC blastocysts have a reduced chance of live birth compared with AA/AB/BA/BB blastocysts, the absolute chances are still reasonable.

What is known already

Transfer of poorer quality embryos and blastocysts result in lower live birth rates, though to what extent is unclear, nor if there is an absolute threshold below which live births are very rare or even do not occur. Further, the developmental competence of the inner cell mass (ICM) or trophectoderm (TE) could at least theoretically impact the pregnancy and/or the health of the baby. Many clinics do not transfer or freeze poor quality embryos and blastocysts, and prefer to submit the patient to a further stimulation cycle.

Study design, size, duration

We performed a retrospective analysis of 10,978 couples undergoing singleton blastocyst transfers between 2009 and March 2020. We included all single blastocyst transfers for which there was complete data on blastocyst quality, singleton or twin births, birthweight and gestation at delivery, irrespective of blastocyst grading, female age, cause of infertility, ovarian response or endometrial thickness. We recorded live birth rates, birth weight and gestational age.

Participants/materials, setting, methods

Data from 14 clinics in 3 countries, 8 from China, 5 from New Zealand, and 1 from Australia were included in the final dataset. We compared the impact of blastocyst grading using multiple logistic regression. Blastocyst grading was based on the Gardner classification, in which the first letter denotes the grade of the inner cell mass (A is best), and the second letter the grade of the trophectoderm.

Main results and the role of chance

Overall, 10,978 single blastocyst cycles resulted in 4,261 live births (38.8%) (4195 singletons and 132 twins). Live birth rates were 47% after transfer of AA blastocysts (n = 2306); 42% after AB/BA (n = 2088); 33% after BC (n = 1973); 25% after CB (n = 715) and 14% after CC (n = 117). There were too few AC (n = 27) or CA (n = 12) blastocysts to include in the analysis. The odds of live birth for BC/CB/CC blastocysts compared with AA/AB/BA blastocysts, vary between 0.8 and 0.9.

The live birth rate appears to be more dependent on ICM quality (C grade, n = 844, 23.2%) rather than TE quality (C grade, n = 2117, 32.1%), with the odds of live birth 0.43 and 0.57 respectively compared to A grade ICM or TE.

The average birth weight (singleton only) was 3336.9+/-570.3 g (range 3323 to 3386 g), and the average gestation at delivery (singleton only) was 38+6+/-2.0 weeks (range 38+2 to 39+1). There was no significant difference for birth weight or gestational age at delivery between blastocysts of different grades.

Limitations, reasons for caution

This was a retrospective study. Grading was based on inner cell mass and trophectoderm and not on degree of expansion, or on day of transfer.

It is likely that higher quality blastocysts were transferred first, in a fresh cycle, and poorer quality blastocysts frozen for later transfer.

Wider implications of the findings

The most important finding is that reasonable live birth rates are obtained in CC-blastocysts.

We therefore advocate that CC-blastocysts should be replaced or frozen for later transfer. It is reassuring that there was no impact of blastocyst quality on birth weights or gestational age at the time of delivery.

Trial registration number

Not applicable

The effect of family planning counselling on postpartum modern contraceptive uptake in sub-Saharan Africa: a systematic review

OBJECTIVE

Family planning counselling at different contact points of maternal health services has been recommended for increasing the uptake of modern contraceptive methods. However, studies from sub-Saharan Africa (SSA) demonstrated inconsistent findings. The aim of this systematic review was to synthesise the available current evidence for the association between family planning counselling and postpartum modern contraceptive uptake in SSA.

STUDY DESIGN

This is a systematic review of the SSA literature.

METHODS

On 11 February 2021, we searched six electronic databases for studies published in English. We included quantitative observational and interventional studies that assessed the effects of family planning counselling on contraceptive uptake among women who gave birth in the first 12 months. We used Joanna Briggs Institute critical appraisal tools to evaluate study quality. The protocol for this systematic review was registered in PROSPERO (CRD42021234785).

RESULTS

Twenty-seven studies with 26,814 participants comprising 18 observational and nine interventional studies were included. Family planning counselling during antenatal care, delivery, postnatal care, and antenatal and postnatal care was associated with postpartum contraceptive uptake. Moreover, the newly implemented family planning counselling interventions improved postpartum modern contraceptive uptake.

CONCLUSION

Overall, the evidence suggests that family planning counselling during the different maternal health service delivery points enhances contraceptive uptake among postpartum women. SSA countries should promote and strengthen family planning counselling integrated with maternal health services, which will play a significant role in combating unintended and closely spaced pregnancies.

Vitreous cytokine levels following the administration of a single 0.19 mg fluocinolone acetonide (ILUVIEN®) implant in patients with refractory diabetic macular edema (DME)-results from the ILUVIT study

Purpose

To investigate the changes in vitreous inflammatory and angiogenic cytokine levels, primarily interleukin-(IL)-6, following intravitreal injection of the 0.19 mg fluocinolone acetonide (FAc, ILUVIEN®) implant in patients with diabetic macular edema.

Methods

A single-center phase IV study involving 12 patients’ eyes with diabetic macular edema. Vitreous fluid samples were obtained prior to intravitreal injection of the fluocinolone acetonide implant and then again over a 6-month period. Vitreous samples were examined using a cytometric bead array to measure IL-6, IL-8, IP-10, MCP-1, VEGF, and CD54. PIGF and PEDF were measured using an enzyme-linked immunosorbent assay. Changes in the cytokine and chemokine expression patterns were analyzed. Clinical parameters such as BCVA and center point thickness (CPT) were also examined.

Results

There were mean reductions in all parameters between baseline and month 6. Significant changes (p < 0.05 versus baseline) were observed in the expression of IL-6, IP-10, MCP-1, and CD54 following the administration of fluocinolone acetonide implant. VEGF and PIGF increased at month 1 before declining at month 6, though this trend was not significant. CPT decreased rapidly between screening and the first follow-up visit, and this decrease was sustained. BCVA remained relatively stable throughout.

Conclusion

This study demonstrated changes in vitreous inflammatory and angiogenic cytokine levels following intravitreal injection of the FAc implant in patients with diabetic macular edema. Data show that the fluocinolone acetonide implant led to rapid and sustained reductions of some inflammatory cytokines with improvement of the overall clinical picture.

Supplementary Information

The online version contains supplementary material available at 10.1007/s00417-022-05564-2.

Nests of dividing neuroblasts sustain interneuron production for the developing human brain

The human cortex contains inhibitory interneurons derived from the medial ganglionic eminence (MGE), a germinal zone in the embryonic ventral forebrain. How this germinal zone generates sufficient interneurons for the human brain remains unclear. We found that the human MGE (hMGE) contains nests of proliferative neuroblasts with ultrastructural and transcriptomic features that distinguish them from other progenitors in the hMGE. When dissociated hMGE cells are transplanted into the neonatal mouse brain, they reform into nests containing proliferating neuroblasts that generate young neurons that migrate extensively into the mouse forebrain and mature into different subtypes of functional interneurons. Together, these results indicate that the nest organization and sustained proliferation of neuroblasts in the hMGE provide a mechanism for the extended production of interneurons for the human forebrain.

160 Applying Human Factors Practices and Simulation to Develop Systems and Processes for a Pandemic Vaccine Service

The COVID-19 vaccine hubs required rapid implantation. While organizations had plans as part of the emergency resilience response to the community, there were particular challenges for setting up and running vaccine hubs for COVID-19 that Human Factors and Ergonomic practices could help to identify and address prior to opening as a vaccine hub.

The aim of the study was to assist with understanding the abilities of vaccinators and design of processes for the vaccine service at Dartford and Gravesham NHS Trust.

Simulation, observation, semi-structured interviews and Hierarchical Task Analysis (HTA) were used to understand the complexity of the vaccinator role and potential challenges for the implementation of the vaccine service. This was then used in identifying an area that could meet the capacity requirements identified and to help design the process and flow through the vaccine hub.

The work undertaken was used to identify and design the processes required to deliver the vaccine service. This in turn helped to identify the space required and, due to changes in practice following potential reactions to the Pfizer BioNTech vaccine

Using simulation and HFE processes as part of a collaborative process with staff trained with these skills can help to design safer, more effective processes in healthcare.

Community pharmacists' views on providing a reproductive health service to women receiving opioid substitution treatment: A qualitative study using the TDF and COM-B

Background

The absence of menstruation is common in women who use drugs. This can give a belief that conception is unlikely. When stabilised on Opioid Substitution Treatment (OST), fertility often returns, initially without realisation as ovulation precedes menstruation. This leaves women vulnerable to unplanned pregnancies. Community pharmacists (CPs) are frequently in contact with this patient group through the Supervised Consumption of OST service. This provides a timely opportunity to provide reproductive health (RH) advice. The aim of this study was to investigate pharmacists' views on providing a RH service to women receiving OST.

Methods

Twenty semi-structured interviews based on the Capability-Opportunity-Motivation to Behaviour (COM-B) model and the Theoretical Domains Framework (TDF) were conducted between 2016 and 2017. Data analysis involved deductive coding using the TDF domains. The TDF domains were mapped onto the elements of the COM-B and used in the second step to create the framework and chart the data. The third step involved re-reading and clustering the codes, and inductive themes were generated to explain the data in depth.

Results

Nine of the 14 TDF domains, mapped into five elements of the COM-B, were identified. Five inductive themes were generated: 1) The pharmacists' experience and knowledge of reproductive health (RH) needs of women receiving OST, 2) The pharmacists' approach to providing advice, 3) The pharmacists' perception of the relationship with women receiving OST, 4) Social influences, and 5) Environmental factors. Community pharmacists feared causing offense to women receiving OST and described requiring cues as to when the service was needed. Pharmacists' highlighted a power imbalance in the relationship with women receiving OST. This could influence how receptive this patient group would be to pharmacy RH interventions.

Conclusions

CPs' concerns of providing RH service could hinder a proactive service provision. Supporting good rapport and providing a structured consultation would increase the accessibility of such a service.

•

Reproductive health advice is triggered by social or physical cues from women.

•

Provision of this advice is subject to the reflective thinking of the provider.

•

A power imbalance characterizes supervised opioid substitution treatment.

•

Good rapport and a structured consultation were seen to increase the accessibility.

Effects of COVID-19 on EMS Refresher Course Completion and Delivery

Introduction: The COVID pandemic has significantly impacted educational development and delivery, yet there is little quantitative research on this topic. The primary objective of this study was to compare the total number of Emergency Medical Service (EMS) Refresher (ER) course completions during 2020 versus prior years. Secondary outcomes examined in person versus on-line/distributive learning during the study period. Methods: The Commission on Accreditation for Prehospital Continuing Education (CAPCE) is the only national organization that accredits continuing education (CE) for paramedics and EMTs and currently has a database with over 14 million CE records. The total number of ER course completions each month in 2020 were compared to 2019 and 2018. We also compared the different educational format types: live in-person (LIP), asynchronous on-line distributive learning (DL), and virtual instructor lead training (VILT) synchronous DL courses. Data was analyzed using descriptive and two-way ANOVA statistics. Results: There were 1,922,783 ER course completions in 2020 versus 1,166,335 in 2019 and 1,074,636 in 2018, representing a 179% increase during the study period. Asynchronous DL course completions in 2020 were 1,830,513 EMS versus 1,078,580 in 2019 and 987,749 in 2018 a 185% increase over the three-year study period. Asynchronous DL monthly means by year was statistically significant, F(2, 99) = 95.632, p < .001. Mean monthly LIP and VLIT educational deliveries by year were not significantly different, p = .802, p = .754, respectively. Total LIP course completions in 2020 were 20,045 versus 51,552 in 2019 and 63,058 in 2018. In 2020 LIP courses made up only 1.0% (20,045/1,922,783) of all ER completions. This study was limited to only EMS professionals taking ER course completions in the CAPCE database. However EMS is not unique, since previous research has suggested that DL has flourished in other health care disciplines while LIP courses have continued to decrease. Conclusion: This large nationwide study of EMS profession has shown the trend toward DL education and a trend away from LIP courses. Future studies should examine the advantages and disadvantages of DL education.

Streptococcus oralis endocarditis leading to central nervous system infection in pregnancy

This report describes a challenging obstetric case in which septic emboli from Streptococcus oralis endocarditis subsequently led to central nervous system infection. There were delays in diagnosis as the patient presented with non-specific symptoms of fever, diarrhoea and vomiting, initially suspected to be due to viral gastroenteritis and later SARS-CoV-2 infection. Antibiotics were commenced once gram positive cocci were isolated from a blood culture. The patient made no significant improvement despite antimicrobial therapy and subsequently developed a worsening headache and delirium. This deterioration was not rapidly recognised despite the use of a routine obstetric early warning score. However, a diagnosis of meningitis was made once the potential severity of the patient's condition was recognised and Streptococcus oralis was identified in cerebrospinal fluid and blood cultures. Bacterial endocarditis was diagnosed following transthoracic echocardiography. The patient improved with optimised antimicrobial therapy and delivered a healthy baby. This example highlights how non-specific symptoms can be caused by rare and life-threatening illnesses, and emphasises that early warning scores might not easily identify neurological deterioration in obstetric patients.

456 Palliative Care Interventions for Peripheral Vascular Disease: A Systematic Review

Objective

Identify and evaluate palliative care interventions used in peripheral vascular disease (PVD).

Background

PVD encompasses conditions with poor outcome and severe suffering, both mentally and physically, yet utilisation and research into palliative care interventions remain sparse.

Method

A systematic review of all study designs published between January 1991 and January 2020 in which people with PVD received palliative care interventions and at least one patient reported outcome was recorded.

Results

A total of eight studies involving 87037 unique patients met inclusion criteria (four cohort studies and four cross sectional studies). There were no randomised controlled studies; The small number of studies and study heterogeneity precluded meta-analysis. Only two papers recorded patient reported outcomes. Five papers found an association between palliative care and reduction in health care utilisation. Most of the studies reported that palliative care was likely underused. Only two of the studies included non-hospital patients. The methodological quality of the papers ranged from low to moderate.

Conclusions

Despite high mortality and morbidity associated with PVD, evidence of the effectiveness of palliative care in this group of patients is lacking. There are only a handful of papers on palliative care in vascular surgery and the majority are small, methodologically flawed and lack patient reported outcomes. Randomised controlled trials of palliative care interventions in patients with PVD are needed to determine optimal treatment outcomes.

UK and Ireland survey of MPharm student and staff experiences of mental health curricula, with a focus on Mental Health First Aid

Background

One in four people experience a mental health problem every year and improving mental health care is an international priority. In the course of their work, pharmacists frequently encounter people with mental health problems. The experience of mental health teaching, including Mental Health First Aid (MHFA) training, in undergraduate pharmacy (MPharm) students in the UK and Ireland is not well documented. Students’ viewpoints, contextualised with curricular overviews provided by staff, were analysed to understand their experience.

Methods

An anonymous, online questionnaire was distributed to MPharm students and staff in the UK and Ireland. Students were asked closed questions regarding their course and exposure to MHFA, which were analysed using descriptive statistics. Open questions were included to enable explanations and these data were used to contextualise the quantitative findings. One member of staff from each university was invited to answer a modified staff version of the questionnaire, to provide a curriculum overview and staff perspective.

Results

232 students and 13 staff, from 22 universities, responded. Three-quarters of students did not agree with the statement that ‘mental health was embedded throughout the MPharm’. Most students (80.6%) stated that they were taught neuropharmacology whilst 44.8% stated that their course included communicating with people about their mental health. One-third (33.2%) of students stated that their degree ‘adequately prepared them to help people with their mental health’. Twenty-six students (11.6%) had completed MHFA training of which 89% would endorse inclusion of this within the MPharm. Of those who had not completed the training, 81% expressed a desire to do so. Those who completed MHFA training self-reported greater preparedness than those who did not, but student numbers were small.

Conclusions

Mental health teaching for pharmacy undergraduates is more focussed on theoretical aspects rather than applied skills. MHFA was viewed by students as one way to enhance skill application. The association of the increased self-reported preparedness of those who completed MHFA could be confounded by a positive environmental cultural. MPharm programmes need sufficient focus on real-world skills such as communication and crisis response, to complement the fundamental science.

Supplementary Information

The online version contains supplementary material available at 10.1186/s40545-021-00364-1.

Maternal perinatal depressive symptoms and oppositional-defiant disorder in children and adolescents

Introduction

There is evidence that maternal perinatal depression is associated with adverse neurodevelopmental and mental health outcomes in children. No study has yet examined the association between maternal depressive symptoms during pregnancy and the postpartum period and the risk of oppositional-defiant disorder (ODD) in children and adolescents.

Objectives

This study aimed to investigate whether there is an association between perinatal depressive symptoms and the risk of ODD in offspring from age 7 to 15 years.

Methods

We used data from the Avon Longitudinal Study of Parents and Children (ALSPAC), a population-based prospective birth cohort study in the UK. Offspring ODD at the age of 7, 10, 13 and 15 years were assessed by using parental reports the Development and Well-Being Assessment (DAWBA). We applied Generalized Estimating Equation (GEE) modelling to examine associations across the four time points.

Results

Maternal postnatal depressive symptoms were associated with more a two-fold increased risk of ODD overall. Third trimester depressive symptoms (measured at 32 weeks of gestation) increased risk of ODD by 72%. Offspring of mothers who had depressive symptoms both during pregnancy and in the first year of postpartum period have a four-fold increased risk of ODD over time (_adjusted OR = 3.59 (1.98-6.52).

Conclusions

Offspring of mothers with perinatal depressive symptoms are at an increased risk of developing behavioural disorders.

Constraints on Cosmic Strings Using Data from the Third Advanced LIGO-Virgo Observing Run

We search for gravitational-wave signals produced by cosmic strings in the Advanced LIGO and Virgo full O3 dataset. Search results are presented for gravitational waves produced by cosmic string loop features such as cusps, kinks, and, for the first time, kink-kink collisions. A template-based search for short-duration transient signals does not yield a detection. We also use the stochastic gravitational-wave background energy density upper limits derived from the O3 data to constrain the cosmic string tension Gμ as a function of the number of kinks, or the number of cusps, for two cosmic string loop distribution models. Additionally, we develop and test a third model that interpolates between these two models. Our results improve upon the previous LIGO-Virgo constraints on Gμ by 1 to 2 orders of magnitude depending on the model that is tested. In particular, for the one-loop distribution model, we set the most competitive constraints to date: Gμ≲4×10^{-15}. In the case of cosmic strings formed at the end of inflation in the context of grand unified theories, these results challenge simple inflationary models.

Constraints on Cosmic Strings Using Data from the Third Advanced LIGO-Virgo Observing Run

We search for gravitational-wave signals produced by cosmic strings in the Advanced LIGO and Virgo full O3 dataset. Search results are presented for gravitational waves produced by cosmic string loop features such as cusps, kinks, and, for the first time, kink-kink collisions. A template-based search for short-duration transient signals does not yield a detection. We also use the stochastic gravitational-wave background energy density upper limits derived from the O3 data to constrain the cosmic string tension Gμ as a function of the number of kinks, or the number of cusps, for two cosmic string loop distribution models. Additionally, we develop and test a third model that interpolates between these two models. Our results improve upon the previous LIGO-Virgo constraints on Gμ by 1 to 2 orders of magnitude depending on the model that is tested. In particular, for the one-loop distribution model, we set the most competitive constraints to date: Gμ≲4×10^{-15}. In the case of cosmic strings formed at the end of inflation in the context of grand unified theories, these results challenge simple inflationary models.

Pharmacist-led education-based antimicrobial stewardship interventions and their effect on antimicrobial use in hospital inpatients: a systematic review and narrative synthesis

BACKGROUND

Antimicrobial stewardship (AMS) programmes optimize antimicrobial use and address antimicrobial resistance. Pharmacists are often key agents of these programmes. The effectiveness of hospital-based AMS interventions when they are led by pharmacists, however, has not previously been reported.

AIM

To evaluate the effectiveness of pharmacist-led AMS interventions in improving antimicrobial use for hospital inpatients.

METHODS

Standard systematic review methods were used. The search strategies and databases used in a previous Cochrane review were applied. Studies that reported pharmacist-led AMS interventions were included. Narrative synthesis was used to report the findings. PRISMA guidelines were followed.

FINDINGS

From 6971 records retrieved and screened, 52 full-text articles were included. Most studies were undertaken in teaching hospitals (N = 45) and many were conducted in North America (N = 27). Most interventions targeted junior or ward physicians and lasted between one and six months. All studies evaluated educational interventions often in combination with other interventions and reported improvements 'in compliance with target AMS practice'. Greater compliance was achieved with multiple interventions. Pharmacist-led interventions reduced the duration of antimicrobial therapy without increasing mortality. No consistency of evidence was achieved in relation to interventions and reduced duration of hospital stay, nor infections due to antimicrobial resistance or occurrence of Clostridium difficile.

CONCLUSION

This is the first systematic review to evaluate the effectiveness of pharmacist-led AMS interventions in hospital inpatients. Education-based interventions were effective in increasing guideline compliance and reducing duration of antimicrobial therapy. Future hospital-based AMS programmes should consider the involvement of pharmacists to deliver and promote AMS interventions and programmes.

The Influence of an Elastase-Sensitive Complement C5 Variant on Lupus Nephritis and Its Flare

Introduction

A C5 polymorphism (rs17611, 2404G>A) exists where the G allele associates with enhanced C5a-like production by neutrophil elastase. This cohort study investigated the influence of this polymorphism as a risk factor for lupus nephritis (LN), and on C5a and membrane attack complex (MAC) levels in LN during flare.

Methods

A cohort of lupus patients (n = 155) was genotyped for the 2404G>A polymorphism. A longitudinal LN subset (n = 66) was tested for plasma and urine levels of C5a and MAC 4 and/or 2 months before and at nonrenal or LN flare.

Results

The 2404G allele and 2404-GG genotype were associated with LN in black, but not white, lupus patients. In the longitudinal cohort, neither urine nor plasma C5a levels changed at nonrenal flare regardless of 2404G>A genotype or race. Urine (but not plasma) C5a levels increased at LN flare independent of race, more so in 2404-GG patients where 8 of 30 LN flares exhibited very high C5a levels. Higher proteinuria and serum creatinine levels also occurred in these eight flares. Urine (but not plasma) MAC levels also increased at LN flare in 2404-GG patients and correlated with urine C5a levels.

Conclusions

The C5 2404-G allele/GG genotype is a potential risk factor for LN uniquely in black lupus patients. The GG genotype is associated with sharp increases in urine C5a and MAC levels in a subset of LN flares that correspond to higher LN disease indices. The lack of corresponding changes in plasma suggests these increases reflect intrarenal complement activation.

Factors associated with use of insecticide-treated net for malaria prevention in Manica District, Mozambique: a community-based cross-sectional survey

BACKGROUND

Insecticide-treated net (ITN) use is crucial for preventing malaria infection. Despite significant improvements in ITN access and use over the past two decades, many malaria-endemic countries in sub-Saharan Africa have not yet reached global targets for universal coverage of ITNs. To reduce the gaps in ITN use, it is important to understand the factors associated with ITN use. The goal of this analysis was to determine the factors associated with ITN use in Manica District, Mozambique.

METHODS

A cross-sectional community-based survey was conducted from October to November 2019. Households were randomly selected, and all members of selected households were eligible to participate. Data on socio-demographic characteristics, housing construction and the ownership, use and characteristics of ITNs were collected using structured questionnaires. Factors independently associated with ITN use were identified using generalized estimating equations multivariate logistic regression.

RESULTS

Of the 302 households surveyed, 209 (69.2%) owned at least one ITN and 176 (58.3%) had one ITN for every two household members. The multivariate analysis indicated that the odds of ITN use was significantly lower among individuals in households with 3 or more members. However, the odds of ITN use was significantly higher among older age groups, poorer households, and as the number of ITNs in a household increased.

CONCLUSIONS

The findings of this analysis highlight the need for behaviour change communication strategies targeting young people and ITN distribution campaigns targeting larger households to increase ITN ownership, thereby improving ITN use in Manica District.

Mental health curricula and Mental Health First Aid in the MPharm

Introduction

Improving mental health care is an international priority, and one that is championed by the Royal Pharmaceutical Society. (1) In the course of their work, pharmacists frequently encounter people with mental health problems. The extent to which mental health is taught on the undergraduate pharmacy degree in the UK and Ireland, and the inclusion of Mental Health First Aid (MHFA) training, has not be described recently.

Aim

We aimed to determine how mental health teaching is embedded into the MPharm and students’ perception of their own preparedness to help people with their mental health. We explored if and how MHFA training is included, and students’ experience of, or desire to complete this.

Methods

We conducted an anonymous, online questionnaire of UK and Ireland MPharm students, distributed via networks and social media. Students were asked a series of closed questions about mental health teaching in the MPharm, and exposure to MHFA. We analysed answers using descriptive statistics. We included some open-ended questions to enable students to expand on their answers. We used this qualitative data to contextualize findings. We invited one member of staff from each university to answer a modified staff version of the questionnaire, in order to provide a curriculum overview and staff perspective on MHFA provision.

Results

232 students and 13 staff responded, from 22 universities in total. Eighty percent of student participants were female and 70% were in the third or final year of study. Three-quarters of students felt that mental health was not embedded throughout the MPharm. Eighty-percent of students stated that they were taught about neuropharmacology and 44.8% stated that their course included communicating with people about their mental health. One third of students felt that their degree adequately prepared them to help people with their mental health. Twenty-six students (11.6%) had completed MHFA training of which 89% would endorse inclusion of this within the MPharm. Of those who had not completed the training, 81% expressed a desire to do so. Those who completed MHFA training self-reported more preparedness than those who did not, but student numbers were small.

Conclusion

Mental health teaching remains focused on theoretical aspects, such as pharmacology, with less emphasis on practical skills, such as communication skills that might support interactions about mental health. MHFA was viewed by students as one way to enhance this. Of the small number of students who had completed MHFA, they displayed an increased self-reported preparedness. This could, however, be linked to the environmental culture of the programme rather than the training per se. MPharm programmes need sufficient focus on skills including communication and crisis response that may be required by pharmacists, alongside the fundamental scientific knowledge relating to mental health.

References

1. Royal Pharmaceutical Society. No health without mental health: How can pharmacy support people with mental health problems? London: RPS; 2018.

Pharmacy professionals’ views regarding the future of NHS patient medicines helpline services: A multimethod qualitative study

Introduction

Patient medicines helpline services (PMHS) have been established at some National Health Service (NHS) hospitals in England, to provide medicines-related support to recently discharged hospital patients and carers. However, findings suggest that, due to a lack of resources, considerable variation exists in the operation of PMHS, and that their access, availability, and promotion do not meet national standards regarding helpline provision (1, 2). To develop recommendations for service improvement, this qualitative study sought to examine pharmacy professionals’ views regarding the future of PMHS.

Aim

To examine pharmacy professionals’ perceptions of the future of PMHS, and develop recommendations for service improvement.

Methods

University ethics and Health Research Authority approval were obtained before commencement. Participants comprised pharmacy professionals from acute, mental health, specialist, and community NHS Trusts that provided a PMHS. Invitations to participate in an online qualitative survey and subsequent semi-structured telephone interview were sent via email to pharmacy services at all Trusts that provided a PMHS. Within the survey and the interview schedule was one question “How do you see patient medicines helplines at NHS Trusts developing in the future?” and only the data generated from this open-ended question were analysed for this study. Survey data were collected via SurveyMonkey (n=100). Individuals interested in participating in an interview contacted the research team, resulting in 34 interviews. Interviews were conducted from May-October 2018, and ranged from 16 to 53 minutes. Braun and Clarke’s inductive reflexive thematic analysis was used to analyse the data. Guidelines for enhancing the validity and trustworthiness of qualitative research were used.

Results

Two themes were generated from the survey and interviews. Enhancing value for service users identifies suggestions for improving the value of PMHS for service users. These include providing access methods beyond the telephone, and providing patients/carers with post-discharge follow-up calls from a pharmacist. Improving efficiency identifies that, in the future, and in line with NHS plans for efficiency and shared resources, PMHS may become centralised or provided by community pharmacies. Centralised services were considered to likely have more resources available to provide a patient medicines information service compared to hospital pharmacies. Participants often referred to the Carter report and sustainability and transformation plans, which promote the sharing of resources within regions. However, such a change was perceived to only increase efficiency if patient information can be shared between relevant healthcare settings.

Conclusion

PMHS are perceived by pharmacy professionals as likely to become centralised in the future (i.e., provided regionally or nationally) or provided by community pharmacies. This is dependent upon patients’ information being shared between hospitals and the centralised PMHS or pharmacies. To enhance the value of PMHS for service users, providers could establish other methods of access, such as email and video consultation. A limitation of this study is that it did not seek the perspectives of pharmacy professionals who do not provide a PMHS, other healthcare professionals, nor patients and carers. Considering the uncertainty around the future of PMHS, research should establish the best way to support all patients and carers regarding medicines following hospital discharge.

References

1. Williams MJ, Jones MD, Jordan AL, Scott JA. Operating a patient medicines helpline. A survey study exploring current practice in England using the RE-AIM evaluation framework. BMC Health Serv Res. 2018; doi:10.1186/s12913-018-3690-9

2. Williams M, Jordan A, Scott J, Jones MD. Pharmacy professionals’ experiences and perceptions of providing NHS patient medicines helpline services: a qualitative study. BMC Health Serv Res. 2020; doi.org/10.1186/s12913-020-05182-w.

Canadian Rhinology Working Group consensus statement: biologic therapies for chronic rhinosinusitis

BACKGROUND

Recent evidence suggests that biologic therapy with targeted activity within the Type 2 inflammatory pathway can improve the clinical signs and symptoms of chronic rhinosinusitis with nasal polyposis (CRSwNP). There remains a population in CRSwNP that despite medical therapy and endoscopic sinus surgery have persistent signs and symptoms of disease. Therefore, biologics, monoclonal antibody agents, could be beneficial therapeutic treatments for these patients. There have been eight randomized, double-blind, placebo-controlled trails performed for CRSwNP targeted components of the Type 2 inflammatory pathway, notably interleukin (IL)-4, IL-5 and IL-13, IL-5R, IL-33, and immunoglobulin (Ig)E. However, there are no formal recommendations for the optimal use of biologics in managing Chronic Rhinosinusitis (CRS) within the Canadian health care environment.

METHODS

A Delphi Method process was utilized involving three rounds of questionnaires in which the first two were completed individually online and the third was discussed on a virtual platform with all the panelists. 17 fellowship trained rhinologists across Canada evaluated the 28 original statements on a scale of 1-10 and provided comments. A rating within 1-3 indicated disagreement, 8-10 demonstrated agreement and 4-7 represented being neutral towards a statement. All ratings were quantitively reviewed by mean, median, mode, range and standard deviation. Consensus was defined by removing the highest and lowest of the scores and using the "3 point relaxed system".

RESULTS

After three rounds, a total of 11 statements achieved consensus. This white paper only contains the final agreed upon statements and clear rationale and support for the statements regarding the use of biologics in patients with CRS.

CONCLUSION

This white paper provides guidance to Canadian physicians on the use of biologic therapy for the management of patients with CRS, but the medical and surgical regimen should ultimately be individualized to the patient. As more biologics become available and additional trials are published we will provide updated versions of this white paper every few years.

A pilot study evaluating GSK1070806 inhibition of interleukin-18 in renal transplant delayed graft function

INTRODUCTION

Delayed graft function (DGF) following renal transplantation is a manifestation of acute kidney injury (AKI) leading to poor long-term outcome. Current treatments have limited effectiveness in preventing DGF. Interleukin-18 (IL18), a biomarker of AKI, induces interferon-γ expression and immune activation. GSK1070806, an anti-IL18 monoclonal antibody, neutralizes activated (mature) IL18 released from damaged cells following inflammasome activation. This phase IIa, single-arm trial assessed the effect of a single dose of GSK1070806 on DGF occurrence post donation after circulatory death (DCD) kidney transplantation.

METHODS

The 3 mg/kg intravenous dose was selected based on prior studies and physiologically based pharmacokinetic (PBPK) modeling, indicating the high likelihood of a rapid and high level of IL18 target engagement when administered prior to kidney allograft reperfusion. Utilization of a Bayesian sequential design with a background standard-of-care DGF rate of 50% based on literature, and confirmed via extensive registry data analyses, enabled a statistical efficacy assessment with a minimal sample size. The primary endpoint was DGF frequency, defined as dialysis requirement ≤7 days post transplantation (except for hyperkalemia). Secondary endpoints included safety, pharmacokinetics and pharmacodynamic biomarkers.

RESULTS

GSK1070806 administration was associated with IL18-GSK1070806 complex detection and increased total serum IL18 levels due to IL18 half-life prolongation induced by GSK1070806 binding. Interferon-γ-induced chemokine levels declined or remained unchanged in most patients. Although the study was concluded prior to the Bayesian-defined stopping point, 4/7 enrolled patients (57%) had DGF, exceeding the 50% standard-of-care rate, and an additional two patients, although not reaching the protocol-defined DGF definition, demonstrated poor graft function. Six of seven patients experienced serious adverse events (SAEs), including two treatment-related SAEs.

CONCLUSION

Overall, using a Bayesian design and extensive PBPK dose modeling with only a small sample size, it was deemed unlikely that GSK1070806 would be efficacious in preventing DGF in the enrolled DCD transplant population.

TRIAL REGISTRATION

NCT02723786.

Mobile telephone delivered contingency management for encouraging adherence to supervised methadone consumption: feasibility study for an RCT of clinical and cost-effectiveness (TIES)

BACKGROUND

Prescription methadone or buprenorphine enables people with opioid use disorder to stop heroin use safely while avoiding withdrawal. To ensure methadone is taken as prescribed and to prevent diversion onto the illicit market, people starting methadone take their daily dose under a pharmacist's supervision. Many patients miss their daily methadone dose risking withdrawal, craving for heroin and overdose due to loss of heroin tolerance. Contingency management (CM) can improve medication adherence, but remote delivery using technology may be resource-light and cost-effective. We developed an innovative way to deliver CM by mobile telephone. Software monitors patients' attendance and supervised methadone consumption through an internet self-login at the pharmacy and sends reinforcing text messages to patients' mobile telephones. A linked system sends medication adherence reports to prescribers and provides early warning alerts of missed doses. A pre-paid debit card system provides financial incentives.

METHODS

A cluster randomised controlled trial design was used to test the feasibility of conducting a future trial of mobile telephone CM to encourage adherence to supervised methadone in community pharmacies. Each cluster (drug service/3 allied pharmacies) was randomly allocated to provide patient's presenting for a new episode of opiate agonist treatment (OAT) with either (a) mobile telephone text message CM, (b) mobile telephone text message reminders, or (c) no text messages. We assessed acceptability of the interventions, recruitment, and follow-up procedures.

RESULTS

Four drug clinics were approached and three recruited. Thirty-three pharmacists were approached and 9 recruited. Over 3 months, 173 individuals were screened and 10 enrolled. Few patients presented for OAT and high numbers were excluded due to receiving buprenorphine or not attending participating pharmacies. There was 96% consistency in recording medication adherence by self-login vs. pharmacy records. In focus groups, CM participants were positive about using self-login, the text messages, and debit card. Prescribers found weekly reporting, time saving, and allowed closer monitoring of patients. Pharmacists reported that the tablet device was easy to host.

CONCLUSION

Mobile telephone CM worked well, but a planned future trial will use modified eligibility criteria (existing OAT patients who regularly miss their methadone/buprenorphine doses) and increase the number of participating pharmacies.

TRIAL REGISTRATION

The trial is retrospectively registered, ISRCTN 58958179 .

COVID-19 in New Zealand and the impact of the national response: a descriptive epidemiological study

BACKGROUND

In early 2020, during the COVID-19 pandemic, New Zealand implemented graduated, risk-informed national COVID-19 suppression measures aimed at disease elimination. We investigated their impacts on the epidemiology of the first wave of COVID-19 in the country and response performance measures.

METHODS

We did a descriptive epidemiological study of all laboratory-confirmed and probable cases of COVID-19 and all patients tested for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in New Zealand from Feb 2 to May 13, 2020, after which time community transmission ceased. We extracted data from the national notifiable diseases database and the national SARS-CoV-2 test results repository. Demographic features and disease outcomes, transmission patterns (source of infection, outbreaks, household transmission), time-to-event intervals, and testing coverage were described over five phases of the response, capturing different levels of non-pharmaceutical interventions. Risk factors for severe outcomes (hospitalisation or death) were examined with multivariable logistic regression and time-to-event intervals were analysed by fitting parametric distributions using maximum likelihood estimation.

FINDINGS

1503 cases were detected over the study period, including 95 (6·3%) hospital admissions and 22 (1·5%) COVID-19 deaths. The estimated case infection rate per million people per day peaked at 8·5 (95% CI 7·6-9·4) during the 10-day period of rapid response escalation, declining to 3·2 (2·8-3·7) in the start of lockdown and progressively thereafter. 1034 (69%) cases were imported or import related, tending to be younger adults, of European ethnicity, and of higher socioeconomic status. 702 (47%) cases were linked to 34 outbreaks. Severe outcomes were associated with locally acquired infection (crude odds ratio [OR] 2·32 [95% CI 1·40-3·82] compared with imported), older age (adjusted OR ranging from 2·72 [1·40-5·30] for 50-64 year olds to 8·25 [2·59-26·31] for people aged ≥80 years compared with 20-34 year olds), aged residential care residency (adjusted OR 3·86 [1·59-9·35]), and Pacific peoples (adjusted OR 2·76 [1·14-6·68]) and Asian (2·15 [1·10-4·20]) ethnicities relative to European or other. Times from illness onset to notification and isolation progressively decreased and testing increased over the study period, with few disparities and increasing coverage of females, Māori, Pacific peoples, and lower socioeconomic groups.

INTERPRETATION

New Zealand's response resulted in low relative burden of disease, low levels of population disease disparities, and the initial achievement of COVID-19 elimination.

FUNDING

Ministry of Business Innovation and Employment Strategic Scientific Investment Fund, and Ministry of Health, New Zealand.

Effects of a six-week exercise intervention on function, pain and lumbar multifidus muscle cross-sectional area in chronic low back pain: A proof-of-concept study

INTRODUCTION

Exercise with the Functional Re-adaptive Exercise Device (FRED) has previously been shown to activate the lumbar multifidus (LM) and transversus abdominis (TrA) muscles in non-symptomatic volunteers. This study aimed to determine the effects of a six-week FRED exercise intervention on pain intensity, patient-reported function and LM cross sectional area (CSA) in people with chronic non-specific low back pain (LBP).

METHODS

Thirteen participants undertook six weeks of FRED exercise for up to 15 min, three times per week. At six weeks pre-, immediately pre-, immediately post-, and six and 15 weeks post-intervention, participants completed the Numeric Pain Rating Scale, Patient-Specific Functional Scale, and ultrasound imaging was used to assess the size of the LM muscles at L5 level. Changes in outcomes were assessed using effect size, confidence intervals and minimum clinically important difference (MCID).

RESULTS

There was no improvement in pain intensity following the intervention. Patient-reported function improved by at least twice the MCID for all follow-up assessments compared to immediately pre-intervention (d = 4.20-6.58). Lumbar multifidus CSA showed a large effect size increase from immediately pre-intervention to immediately post-intervention (d = 0.8-1.1); this was maintained at six weeks post-intervention (not measured at 15 weeks post-intervention).

CONCLUSION

Six weeks of FRED exercise improved physical function in all 13 participants with chronic non-specific LBP who took part in this study and most participants' lumbar multifidus muscle CSA. On this basis, it may be an effective intervention for people with chronic LBP and should now be tested in a randomised controlled trial.

The Dilator-Dotter Technique: A Modified Method of Rapid Internal Carotid Artery Revascularization in Acute Ischemic Stroke

BACKGROUND AND PURPOSE

Acute ischemic stroke due to tandem occlusive lesions involves high-grade ICA stenosis or occlusion with a distal intracranial occlusion. Several approaches and devices exist in the treatment of tandem occlusions; however, a consensus on the optimal technique does not exist. The Dotter technique is a method of catheter-based angioplasty to recanalize cervical ICA occlusions. We present a modified dilator-Dotter technique, which involves a polyethylene, tapered inner dilator to initially cross the occlusion, followed by guide catheterization and subsequent intracranial thrombectomy. The purpose of this study was to examine the safety and efficacy of this dilator-Dotter technique.

MATERIALS AND METHODS

We performed a retrospective review of patients with acute stroke due to tandem ICA intracranial occlusions, treated with our dilator-Dotter technique and thrombectomy between June 2018 and December 2019. We examined clinical, radiographic, and procedural data, as well as complications and outcomes.

RESULTS

Thirty-two patients were included. In 100% of cases, the dilator-Dotter technique resulted in ICA recanalization allowing successful thrombectomy. TICI 2b-3 revascularization was obtained in 31 patients (96%), within an average time of 25 minutes. The average preprocedural ICA stenosis was 98%, including 23 patients (72%) with complete occlusion. Following the dilator-Dotter technique, average ICA stenosis improved to 59%. There were no instances of death, iatrogenic dissection, emboli to new territory, or symptomatic intracranial hemorrhage.

CONCLUSIONS

The dilator-Dotter technique may be a safe and effective modification of the traditional Dotter technique in allowing rapid ICA recanalization in cases of acute ischemic stroke due to tandem occlusions.

GW190521: A Binary Black Hole Merger with a Total Mass of 150 M_{⊙}

On May 21, 2019 at 03:02:29 UTC Advanced LIGO and Advanced Virgo observed a short duration gravitational-wave signal, GW190521, with a three-detector network signal-to-noise ratio of 14.7, and an estimated false-alarm rate of 1 in 4900 yr using a search sensitive to generic transients. If GW190521 is from a quasicircular binary inspiral, then the detected signal is consistent with the merger of two black holes with masses of 85_{-14}^{+21}  M_{⊙} and 66_{-18}^{+17}  M_{⊙} (90% credible intervals). We infer that the primary black hole mass lies within the gap produced by (pulsational) pair-instability supernova processes, with only a 0.32% probability of being below 65  M_{⊙}. We calculate the mass of the remnant to be 142_{-16}^{+28}  M_{⊙}, which can be considered an intermediate mass black hole (IMBH). The luminosity distance of the source is 5.3_{-2.6}^{+2.4}  Gpc, corresponding to a redshift of 0.82_{-0.34}^{+0.28}. The inferred rate of mergers similar to GW190521 is 0.13_{-0.11}^{+0.30}  Gpc^{-3} yr^{-1}.

Can network analysis shed light on predictors of lithium response in bipolar I disorder?

OBJECTIVE

To undertake a large-scale clinical study of predictors of lithium (Li) response in bipolar I disorder (BD-I) and apply contemporary multivariate approaches to account for inter-relationships between putative predictors.

METHODS

We used network analysis to estimate the number and strength of connections between potential predictors of good Li response (measured by a new scoring algorithm for the Retrospective Assessment of Response to Lithium Scale) in 900 individuals with BD-I recruited to the Consortium of Lithium Genetics.

RESULTS

After accounting for co-associations between potential predictors, the most important factors associated with the good Li response phenotype were panic disorder, manic predominant polarity, manic first episode, age at onset between 15-32 years and family history of BD. Factors most strongly linked to poor outcome were comorbid obsessive-compulsive disorder, alcohol and/or substance misuse, and/or psychosis (symptoms or syndromes).

CONCLUSIONS

Network analysis can offer important additional insights to prospective studies of predictors of Li treatment outcomes. It appears to especially help in further clarifying the role of family history of BD (i.e. its direct and indirect associations) and highlighting the positive and negative associations of different subtypes of anxiety disorders with Li response, particularly the little-known negative association between Li response and obsessive-compulsive disorder.

High prevalence of albuminuria amongst people who inject drugs: A cross-sectional study

Albuminuria is a key biomarker for cardiovascular disease and chronic kidney disease. Our study aimed to describe the prevalence of albuminuria amongst people who inject drugs in London and to test any potential associations with demographic characteristics, past diagnoses, and drug preparation and administration practices. We carried out a cross-sectional survey amongst people who use drugs in London. The main outcome measure was any albuminuria including both microalbuminuria and macroalbuminuria. Three-hundred and sixteen samples were tested by local laboratory services. Our study initially employed point-of-care testing methods but this resulted in a high number of false positives. Our findings suggest the prevalence of albuminuria amongst PWID is twice that of the general population at 19% (95%CI 15.3–24.0%). Risk factors associated with albuminuria were HIV (aOR 4.11 [95% CI 1.37–12.38]); followed by overuse of acidifier for dissolving brown heroin prior to injection (aOR 2.10 [95% CI 1.04–4.22]). Albuminuria is high amongst people who inject drugs compared to the general population suggesting the presence of increased cardiovascular and renal pathologies. This is the first study to demonstrate an association with acidifier overuse. Dehydration may be common amongst this population and may affect the diagnostic accuracy of point-of-care testing for albuminuria.