Perceptions and Prevalence of Cannabis Use in Women With Inflammatory Bowel Disease of Reproductive Age: A Cross-Sectional Study

Background

Many patients with inflammatory bowel disease (IBD) may use cannabis for relief of symptoms. During pregnancy, however, cannabis exposure may be associated with adverse pregnancy outcomes. We aimed to determine the prevalence and perceptions of cannabis use in women with IBD.

Methods

Through recruitment at Mount Sinai Hospital and online platforms such as Twitter, women with IBD (age 18-45) were asked to complete anonymous surveys on demographics, cannabis use, perception of use during pregnancy, and discussing its use with healthcare providers (HCP). Categorical variables were reported as frequencies and compared across groups with the chi-square test.

Results

One-hundred and two pregnant patients with IBD were included in this study, 19 (18.6%) reported using cannabis. Current users were more likely to report constant pain in the last 12 months and discuss its use with their HCP. Fifty-three (52.0%) women were unsure of the specific risks associated with cannabis use during pregnancy, and only 15 (14.7%) had ever discussed its use with their HCP. Those who had discussed cannabis use with their HCP were more likely to have prior IBD-related surgery, perceive its use unsafe during pregnancy, and be more likely to be using cannabis.

Conclusion

Many women with IBD report uncertainty of the risks of cannabis use during pregnancy and the majority have never discussed cannabis use with their providers. With the increasing legalization of cannabis in many jurisdictions, it is imperative patients and healthcare providers discuss the risks and benefits of its use, particularly during vulnerable times such as pregnancy.

Automated, Vision-Based Goniometry and Range of Motion Calculation in Individuals With Suspected Ehlers-Danlos Syndromes/Generalized Hypermobility Spectrum Disorders: A Comparison of Pose-Estimation Libraries to Goniometric Measurements

Generalized joint hypermobility (GJH) often leads clinicians to suspect a diagnosis of Ehlers Danlos Syndrome (EDS), but it can be difficult to objectively assess. Video-based goniometry has been proposed to objectively estimate joint range of motion in hyperextended joints. As part of an exam of joint hypermobility at a specialized EDS clinic, a mobile phone was used to record short videos of 97 adults (89 female, 35.0 ± 9.9 years old) undergoing assessment of the elbows, knees, shoulders, ankles, and fifth fingers. Five body keypoint pose-estimation libraries (AlphaPose, Detectron, MediaPipe-Body, MoveNet - Thunder, OpenPose) and two hand keypoint pose-estimation libraries (AlphaPose, MediaPipe-Hands) were used to geometrically calculate the maximum angle of hyperextension or hyperflexion of each joint. A custom domain-specific model with a MobileNet-v2 backbone finetuned on data collected as part of this study was also evaluated for the fifth finger movement. Spearman's correlation was used to analyze the angles calculated from the tracked joint positions, the angles calculated from manually annotated keypoints, and the angles measured using a goniometer. Moderate correlations between the angles estimated using pose-tracked keypoints and the goniometer measurements were identified for the elbow (rho =.722; Detectron), knee (rho =.608; MoveNet - Thunder), shoulder (rho =.632; MoveNet - Thunder), and fifth finger (rho =.786; custom model) movements. The angles estimated from keypoints predicted by open-source libraries at the ankles were not significantly correlated with the goniometer measurements. Manually annotated angles at the elbows, knees, shoulders, and fifth fingers were moderately to strongly correlated to goniometer measurements but were weakly correlated for the ankles. There was not one pose-estimation library which performed best across all joints, so the library of choice must be selected separately for each joint of interest. This work evaluates several pose-estimation models as part of a vision-based system for estimating joint angles in individuals with suspected joint hypermobility. Future applications of the proposed system could facilitate objective assessment and screening of individuals referred to specialized EDS clinics.

Measurement of Direct-Photon Cross Section and Double-Helicity Asymmetry at sqrt[s]=510 GeV in p[over →]+p[over →] Collisions

We present measurements of the cross section and double-helicity asymmetry A_{LL} of direct-photon production in p[over →]+p[over →] collisions at sqrt[s]=510  GeV. The measurements have been performed at midrapidity (|η|<0.25) with the PHENIX detector at the Relativistic Heavy Ion Collider. At relativistic energies, direct photons are dominantly produced from the initial quark-gluon hard scattering and do not interact via the strong force at leading order. Therefore, at sqrt[s]=510  GeV, where leading-order-effects dominate, these measurements provide clean and direct access to the gluon helicity in the polarized proton in the gluon-momentum-fraction range 0.02<x<0.08, with direct sensitivity to the sign of the gluon contribution.

Clinical outcomes for microvascular reconstruction in oral cancers: experience from a single surgical centre

INTRODUCTION

Reconstruction of a surgical defect is an important part of the management of oral cancers. Microvascular free flap construction provides better functional and cosmetic outcomes.

METHODS

Between 2014 and 2020, some 524 patients underwent microvascular reconstruction. Comorbidity variables were scored using the Charlson Comorbidity Index (CCI). Complications were recorded using Clavien-Dindo criteria.

RESULTS

Eighty-three (15.84%), 339 (64.69%) and 102 (19.47%) patients underwent free radial forearm flap, free anterolateral thigh flap and free fibula osteocutaneous flap (FFOCF), respectively. Clavien-Dindo complications of grade III and above were seen in 39 (7.44%) patients. Total flap loss was seen in 18 patients and of these, 16 were salvaged using alternative free flaps or pedicled flaps. On univariate analysis, overall and major complication rates were higher in FFOCF (p=0.171). Major complications significantly more common in patients with a CCI score >4 (p=0.001). Patients aged >65 years had higher rates of complications (p=0.03).

CONCLUSION

Microvascular free tissue transfer is a reliable, safe and gold standard modality in surgical reconstruction and can be replicated in non-institutional settings.

Knowledge, Attitude and Practice of Pharmacovigilance among Ayurveda Doctors Practicing in Wardha, Maharashtra, India: A Cross-sectional Study

Introduction: Adverse Drug Reactions (ADRs) significantly, cause morbidity and mortality worldwide. As a result, proper ADR monitoring is required. Considering the consequence of this area, the Ministry of AYUSH has introduced a Pharmacovigilance programme for Ayurveda, Siddha, Unani and Homeopathy (ASU&H) drugs. Every Ayurveda Practitioner’s (AP) immense responsibility is to detect and report ADR. Aim: To evaluate the knowledge, attitude, and practice of Pharmacovigilance among AP in Wardha, Maharashtra, India. Materials and Methods: A cross-sectional survey was conducted in a Government Hospital, Wardha, Maharashtra during March to May 2022. Total 38 Ayurveda Doctors of Wardha city having Bachelor of Ayurvadic Medicine and Surgery (BAMS), MD degree, either working in private clinics and hospitals or as medical officers were enrolled in the study. A validated questionnaire was prepared on Google form, circulated through WhatsApp to the doctors, and asked them to fill and submit it within seven days. The collected data were analysed using MS Excel 2007 and expressed in percentages (%). Results: Thirty (78.94%) male, and 08 (21.05%) female doctors possessing BAMS degrees (68.42%) and postgraduate degrees (37.57%), with practice experience between 5 to 30 years participated in the study. Present study revealed that 32 (84.21%) of the BAMS doctors from Wardha city believed that Ayurveda drugs do not cause ADRs, and only 06 (21.05%) have encountered ADRs in their practice, of which only 02 (5.26%) reported an ADR. Conclusion: The present study revealed that AP are well aware about ADR but lacking in the knowledge of its reporting. There is a strong need to organise sensitisation and awareness programmes to implement the pharmocovigilance effectively.

Feasibility of video-based joint hypermobility assessment in individuals with suspected Ehlers-Danlos syndromes/generalised hypermobility spectrum disorders: a single-site observational study protocol

INTRODUCTION

Ehlers-Danlos syndromes (EDS)/generalised hypermobility spectrum disorders (G-HSD) affect the connective tissue of the body and present with a heterogeneous set of symptoms that pose a challenge for diagnosis. One of the main diagnostic criteria of EDS/G-HSD is generalised joint hypermobility, which is currently assessed by clinicians during a physical exam. However, the practice for measuring joint hypermobility is inconsistent between clinicians, leading to high inter-rater variability. Often patients are misdiagnosed with EDS/G-HSD based on an incorrect hypermobility assessment, leading to increased referral rates and resource utilisation at specialised EDS clinics that results in unnecessary emotional distress for patients. An objective, validated and scalable method for assessing hypermobility might mitigate these issues and result in improved EDS/G-HSD patient care.

METHODS AND ANALYSIS

This study will examine the use of videos obtained using a smartphone camera to assess the range of motion (ROM) and hypermobility of the joints assessed in Beighton score and more (spine, shoulders, elbows, knees, ankles, thumbs and fifth fingers) in individuals with suspected EDS/G-HSD. Short videos of participants will be captured as they undergo a formal assessment of joint hypermobility at the GoodHope EDS Clinic at Toronto General Hospital. Clinicians will measure the ROM at each joint using a clinical-grade goniometer to establish ground truth measurements. Open-source human pose-estimation libraries will be used to extract the locations of key joints from the videos. Deterministic and machine learning systems will be developed and evaluated for estimating the ROM at each joint. Results will be analysed separately for each joint and human pose-estimation library.

ETHICS AND DISSEMINATION

This study was approved by the Research Ethics Board of the University Health Network in Toronto on 26 April 2022. Participants will provide written informed consent. Findings from this study will be published in peer-reviewed journals and presented at conferences.

TRIAL REGISTRATION NUMBER

NCT05366114.

Predicting the long-term impact of rotavirus vaccination in 112 countries from 2006 to 2034: A transmission modeling analysis

Rotavirus vaccination has been shown to reduce rotavirus burden in many countries, but the long-term magnitude of vaccine impacts is unclear, particularly in low-income countries. We use a transmission model to estimate the long-term impact of rotavirus vaccination on deaths and disability adjusted life years (DALYs) from 2006 to 2034 for 112 low- and middle-income countries. We also explore the predicted effectiveness of a one- vs two- dose series and the relative contribution of direct vs indirect effects to overall impacts. To validate the model, we compare predicted percent reductions in severe rotavirus cases with the percent reduction in rotavirus positivity among gastroenteritis hospital admissions for 10 countries with pre- and post-vaccine introduction data. We estimate that vaccination would reduce deaths from rotavirus by 49.1 % (95 % UI: 46.6-54.3 %) by 2034 under realistic coverage scenarios, compared to a scenario without vaccination. Most of this benefit is due to direct benefit to vaccinated individuals (explaining 69-97 % of the overall impact), but indirect protection also appears to enhance impacts. We find that a one-dose schedule would only be about 57 % as effective as a two-dose schedule 12 years after vaccine introduction. Our model closely reproduced observed reductions in rotavirus positivity in the first few years after vaccine introduction in select countries. Rotavirus vaccination is likely to have a substantial impact on rotavirus gastroenteritis and its mortality burden. To sustain this benefit, the complete series of doses is needed.

Study of combined effect of Khadirashtak kwath and Lodhradi lep on Mukhdushika (Acne Vulgaris) – A pilot study

Introduction: Skin is one of the five Gyanendriyas (Sense organ) as described in Ayurvedic texts. It is responsible for Sparshdyanam, hence plays important role in Physical and Mental well being. It plays the most important role by interfacing with surrounding. On contrary with this there is increased pollution, stress, change in diet, change in life style causing the most burning skin problem i.e. Mukhdushika so called Acne Vulgaris. In modern science most of the drug which are used have side effect and complications on long term used, so Ayurveda is an best option to treat the diseases. Lodhradilep mentioned in Samhita can be used for external application and Khadirashtak kwath can be used for internal application. It can be used as alternate therapy which is devote of complication and side effect. Aim: To evaluate the efficacy of Lodhradi lep and Khadirashtak kwath on Mukhdushika. Objectives: To study the effect of Lodhradi lep and Khadirashtak kwath on Mukhdushika. Methodology: Ten patients of Mukhdushika (acne) were enrolled into this pilot study. All patients were evaluated on the basis number of  Pidikas (acne), Area Occupied, Kandu (itching), Srava (secretions), Vedana (pain). After 28 days of administration of Lodhradilep and Khadirashtak Kwath twice in a day after meal; result was analysed by paired t test. Results and conclusions: The result in all symptoms i.e. number of  Pidikas (acne) (P = <0.001), Area Occupied(P = 0.001), Kandu (itching) (P = <0.001), Srava (secretions) (P = <0.001), Vedana (pain) (P = <0.001)) was found statistically significant. Thus Lodhradi lep and Khadirashtak Kwath on Mukhdushika is an effective combination for management for Mukhdushika. 

Design for Difference: Cognitive Enhancement Toys For Children with Developmental Delays

Childhood is a phase where children explore, learn and enjoy. For some children, this phase is full of difficulties. These children suffer from either developmental delays or learning difficulties. According to sources, there is a iniquitousness of 1.5-2.5% of advancing delay in kids below 2 years of age in India. Development is described into five different domains - gross motor, fine motor, speech, and language, cognitive and socio-emotional. These children need help at an early age to overcome developmental delays and for cognitive enhancement. Both parents and teachers are involved with children right from an early age, and they can devise ways to help these children. Many schools adopt ‘Play’ as an important activity to help these children overcome developmental delays and “toys” are mostly central to the design of such activities. The paper describes the design research for designing toys for cognitive enhancement of children with developmental delays between 2 and 5 years. In the first phase of research, the interview method was used to understand what kind of learning difficulties children face and what kind of methods are employed to teach them and understand what types of toys they are using. The sample size of 20 comprising of teachers, therapists, and pediatricians from Special schools and departments for special need children in mainstream schools was used for the interview purpose. Observational studies with children (5 different classrooms with children between 3-5 years age) were carried out to understand how children learn and use the toys. At the end of the first phase, the qualitative analysis led to the shift from learning difficulties to developmental delays. In the second phase, a survey of available products in the market was conducted to understand what types of toys are used to address these children’s developmental activity. Mapping the play methods employed by the teachers and therapists to the toys’ activities led to finding the Design gap. The design process incorporated the research findings. The product is designed in the form of a Toy Box with a multi-utility set of toys for cognitive enhancement in children with developmental delays. The design (three sets of toys) addresses children’s communication, spatial, cognitive, gross motor & fine motor skills with developmental delays. The designed product was put through user testing twice to incorporate the findings from the testing to make the design more user-friendly for the children and the teachers, therapists, and parents.

Importance of Toy Play in Special Education for young children: Perspectives and Approaches

Special needs children have different needs compared to typically growing children in various aspects of life. Their learning is hampered due to the difficulties they face in the normal way of learning. Special education practices have been adopting various play-based methods to address special needs children’s difficulties and needs. This research reviews toy play as a learning method and its importance in young special needs children’s education. The paper takes different perspectives on play and how it is characterized. A study of Toy Play taxonomies is also presented from the perspective of the learning needs of special needs children. Three prominent special education approaches are studied, and a synthesis of how to play fits into these approaches is presented. The future of toy play and further research areas is discussed. Early childhood play is a normal phenomenon that has much use in early intervention, early childhood special education, and early childhood education. Among these areas, there are still many disagreements about how to characterize and use play. These tensions jeopardize evaluation, action, and curriculum planning practices, as well as their links to science and practice. This essay examines play in early learning, early childhood special education, early childhood education, and how play is viewed and used in these settings.

Everyday Life of Slum Children: A Case study from Education Perspective

Every year, the city of Pune attracts migrant workers due to urbanization, and these migrants form residential pockets called slums. Today, around 40% of Pune’s population lives in urban slums, around 11% of children, who have little or no access to education with the everyday hand-to-mouth struggle for survival. This study explores the lives of slum children and their educational conditions. Three case studies were conducted with three slums from uptown areas of Pune. Focus group discussions, interviews, and visual survey methods were employed, leading to qualitative analysis. Analysis threw light on the everyday challenges faced by slum children in accessing education. The visual studies imply the need for architectural intervention. The findings also suggest policy implications towards the provision of education towards the betterment of the lives of slum children. Working and learning are the two social processes; without breaking the legal structures on child labor, children working within the home as domestic labor or in the household enterprise is a common occurrence in urban centers, particularly among those who are household income is derived from the informal sector and who have lower income levels. Working modes and times differ depending on the situation. Owing to the size of India’s informal economy and attempts to reduce child labor trafficking, a strong emphasis has been placed on developing and implementing social policies that address child labor.

573 The Changing Microbiology of Paediatric Neck Abscesses: Implications for Antibiotic Therapy

Aim

To provide an update on the microbiology, sensitivity rates and antibiotic prescribing patterns of drained superficial neck lymph node abscesses at Scotland's largest paediatric tertiary centre. Findings were compared to historical data from our institution. Analysis of the microbiology and epidemiological trends of paediatric neck abscesses is helpful for both antimicrobial stewardship purposes as well as to enhance the literature, given that paediatric-related conditions tend to be less well characterised when compared with adults.

Method

A retrospective case series of paediatric patients undergoing incision and drainage of a superficial neck lymph node abscess at the Royal Hospital for Children in Glasgow, 2018–2021. Patients were only included if they had culture and sensitivity testing performed on a sample obtained intra-operatively, were prescribed antibiotics, and were aged 16 years or younger.

Results

Thirty-nine abscesses were identified. Methicillin-susceptible Staphylococcus aureus remains the commonest organism (28%), followed by Streptococcus pyogenes (13%). Their prevalence is significantly lower in comparison to historical data. This was met by a shift towards a variety of rarer micro-organisms. 82% of patients were administered a drug regimen containing co-amoxiclav. Only 3 children required a change in their antibiotics.

Conclusion

Our case series highlights a fall in the yearly rate of drained neck abscesses. There was a significant change in causative micro-organisms, including a decrease in Staphylococcus aureus and an increase in the Streptococcus anginosus group. We recommend the use of co-amoxiclav empirically. In abscesses showing no clinical improvement, second-line options such as clindamycin, cefotaxime and vancomycin should be considered.

Precision Determination of the Neutral Weak Form Factor of ^{48}Ca

We report a precise measurement of the parity-violating (PV) asymmetry A_{PV} in the elastic scattering of longitudinally polarized electrons from ^{48}Ca. We measure A_{PV}=2668±106(stat)±40(syst) parts per billion, leading to an extraction of the neutral weak form factor F_{W}(q=0.8733  fm^{-1})=0.1304±0.0052(stat)±0.0020(syst) and the charge minus the weak form factor F_{ch}-F_{W}=0.0277±0.0055. The resulting neutron skin thickness R_{n}-R_{p}=0.121±0.026(exp)±0.024(model)  fm is relatively thin yet consistent with many model calculations. The combined CREX and PREX results will have implications for future energy density functional calculations and on the density dependence of the symmetry energy of nuclear matter.

Evaluation of prognostic risk models for postoperative pulmonary complications in adult patients undergoing major abdominal surgery: a systematic review and international external validation cohort study

BACKGROUND

Stratifying risk of postoperative pulmonary complications after major abdominal surgery allows clinicians to modify risk through targeted interventions and enhanced monitoring. In this study, we aimed to identify and validate prognostic models against a new consensus definition of postoperative pulmonary complications.

METHODS

We did a systematic review and international external validation cohort study. The systematic review was done in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. We searched MEDLINE and Embase on March 1, 2020, for articles published in English that reported on risk prediction models for postoperative pulmonary complications following abdominal surgery. External validation of existing models was done within a prospective international cohort study of adult patients (≥18 years) undergoing major abdominal surgery. Data were collected between Jan 1, 2019, and April 30, 2019, in the UK, Ireland, and Australia. Discriminative ability and prognostic accuracy summary statistics were compared between models for the 30-day postoperative pulmonary complication rate as defined by the Standardised Endpoints in Perioperative Medicine Core Outcome Measures in Perioperative and Anaesthetic Care (StEP-COMPAC). Model performance was compared using the area under the receiver operating characteristic curve (AUROCC).

FINDINGS

In total, we identified 2903 records from our literature search; of which, 2514 (86·6%) unique records were screened, 121 (4·8%) of 2514 full texts were assessed for eligibility, and 29 unique prognostic models were identified. Nine (31·0%) of 29 models had score development reported only, 19 (65·5%) had undergone internal validation, and only four (13·8%) had been externally validated. Data to validate six eligible models were collected in the international external validation cohort study. Data from 11 591 patients were available, with an overall postoperative pulmonary complication rate of 7·8% (n=903). None of the six models showed good discrimination (defined as AUROCC ≥0·70) for identifying postoperative pulmonary complications, with the Assess Respiratory Risk in Surgical Patients in Catalonia score showing the best discrimination (AUROCC 0·700 [95% CI 0·683-0·717]).

INTERPRETATION

In the pre-COVID-19 pandemic data, variability in the risk of pulmonary complications (StEP-COMPAC definition) following major abdominal surgery was poorly described by existing prognostication tools. To improve surgical safety during the COVID-19 pandemic recovery and beyond, novel risk stratification tools are required.

FUNDING

British Journal of Surgery Society.

AB0444 ENPATORAN: PRECLINICAL EVIDENCE SUPPORTING GLUCOCORTICOID DOSE REDUCTION AND PHASE II STUDY DESIGN IN PATIENTS WITH SLE AND/OR CLE (WILLOW)

Background

Enpatoran is a potent selective dual inhibitor of toll-like receptor (TLR) 7 and TLR8, aberrant activation of which may be involved in systemic lupus erythematosus (SLE) pathogenesis and glucocorticoid resistance.1,2,3 Enpatoran suppressed disease development in lupus mouse models, improving survival and reducing proteinuria, autoantibodies, and the interferon (IFN) gene signature.1 In healthy participants and patients hospitalized with COVID-19 pneumonia, enpatoran was well tolerated and demonstrated effective TLR7/8 engagement.4 Enpatoran is potentially glucocorticoid sparing and may help avoid the detrimental effects of long-term corticosteroid use in SLE management.5,6

Objectives

To evaluate the glucocorticoid-sparing effect of enpatoran and design a basket trial to assess its efficacy and safety in patients with SLE and/or cutaneous lupus erythematosus (CLE).

Methods

Cytokine concentrations and gene expression changes were measured in stimulated human peripheral blood mononuclear cells (PBMCs) from healthy donors after treatment with dexamethasone, TLR7/8 inhibitor, or both. A Phase II, basket design proof-of-concept, dose-finding study in patients with SLE and/or CLE (WILLOW) was designed.

Results

In healthy donor PBMCs, synergy was observed between TLR7/8 inhibitor and dexamethasone. Combination treatment inhibited cytokine release (IL-6) with greater potency than either treatment alone and reduced the expression of nuclear factor-kappa B and IFN-regulated genes. WILLOW is a Phase II, basket proof-of-concept, dose-finding, randomized, double-blind, placebo (PBO)-controlled 24-week study with two cohorts (NCT05162586, Figure 1). The primary objectives of WILLOW are to evaluate the dose–response relationship of enpatoran in reducing disease activity based on Cutaneous Lupus Erythematosus Disease Area and Severity Index-A (CLASI-A) or BILAG-Based Composite Lupus Assessment (BICLA) response rate. The secondary objectives are to investigate effects on both BICLA response and clinically meaningful corticosteroid reduction and evaluate disease control (including clinically meaningful corticosteroid reduction) in patients with predominantly active CLE or SLE. Cohort A will enroll patients with CLE (active subacute CLE and/or discoid LE) or SLE with predominantly active lupus rash. Cohort B, in two parts, will enroll SLE patients with moderate to severe systemic disease activity. Part 1 will assess clinical signal and Part 2 may be adapted to improve dose finding. Glucocorticoid-sparing will be evaluated by mandatory tapering to a prednisone-equivalent dose of ≤5 mg/day.

Figure 1.

WILLOW study design.

Cohort A and Cohort B Part 1 will start in parallel.

*Part 2 will be initiated after a pre-specified number of patients are enrolled in Part 1; enpatoran doses in Part 2 may be adapted to improve dose finding (dashed boxes).

BILAG, British Isles Lupus Assessment Group; CLASI-A, Cutaneous Lupus Erythematosus Disease Area and Severity Index-A; CLE, cutaneous lupus erythematosus; CS, corticosteroid; DBPC, double-blind placebo-controlled; DLE, discoid lupus erythematosus; PBO, placebo; SCLE, Subacute cutaneous lupus erythematosus; SLE, systemic lupus erythematosus; SLEDAI, Systemic Lupus Erythematosus Disease Activity Index.

Conclusion

Enpatoran is a novel TLR7/8 inhibitor and may enable glucocorticoid dose reduction in patients with SLE and CLE. The WILLOW study incorporates multiple novel elements including a basket design and evaluation of glucocorticoid-sparing.

References

[1]Vlach, et al. J Pharmacol Exp Ther. 2021;376:397–409;

[2]Northcott, et al. Lancet Rheumatol. 2021;5:e357–e370;

[3]Guiducci, et al. Nature. 2010;465:937–941;

[4]Port, et al. Pharmacol Res Perspect. 2021;9:e00842;

[5]Thamer, et al. J Rheumatol. 2009;36:560–564;

[6]Ruiz-Irastorza, et al. Rheumatology. 2012;51:1145–1153.

Acknowledgements

This study was sponsored by the healthcare business of Merck KGaA, Darmstadt, Germany (CrossRef Funder ID: 10.13039/100009945), who funded medical writing support by Bioscript Stirling Ltd.

Disclosure of Interests

Eric F. Morand: None declared, Andrew Bender Shareholder of: Shares in Merck KGaA, Employee of: EMD Serono Research & Development institute (an affiliate of Merck KGaA), Aditee Deshpande Employee of: EMD Serono Research & Development institute (an affiliate of Merck KGaA), Bharat Vaidyanathan Employee of: EMD Serono Research & Development institute (an affiliate of Merck KGaA), cristina vazquez mateo Employee of: EMD Serono Research & Development institute (an affiliate of Merck KGaA), Melinda Przetak Employee of: EMD Serono Research & Development institute (an affiliate of Merck KGaA), Flavie Moreau Employee of: EMD Serono Research & Development institute (an affiliate of Merck KGaA), Mukhy Khursheed Employee of: Merck Serono Ltd (an affiliate of Merck KGaA), Sanjeev Roy Employee of: Ares Trading SA (an affiliate of Merck KGaA), David Pearson Consultant of: Biogen Inc.

Long term outcomes of chronic pain patients attending a publicly funded community-based interdisciplinary pain program in the Greater Toronto area: results of a practice-based audit

Background

Chronic pain management multi/interdisciplinary programs attempt to address all elements of the biopsychosocial model. The primary objective of this retrospective study (based on practice-based audit) was to determine the effectiveness of a patient-centered, comprehensive and intense interdisciplinary pain management program in a publicly funded community-based pain clinic in the Greater Toronto Area.

Method

This retrospective longitudinal study was conducted on 218 carefully selected sequential chronic pain patients, with 158 completing a 3–4-month interdisciplinary program between January 2016 and December 2018. Data collected upon exit, at 6 months and 12 months post-discharge included demographic information, pain characteristics, emotional/functional status obtained by validated instruments and global impression of change (GIC). Additionally, social health outcomes (return to work or school) were retrieved through retrospective chart review. Means of pre-and post-program variables were compared to assess changes of each patient’s “journey”.

Results

Physical and mental/ emotional health outcomes at exit, 6 months and 12 months post-discharge, showed initial and sustained, statistically and clinically significant improvement from pre-treatment levels, with GIC (much/very much improved) reported as 77%, 58% and 76%, respectively. Additionally, a substantial positive change in social health outcomes was noted particularly in patients on disability (29%), part time workers gaining full time employment (55%), and students (71%) who improved their level of schooling.

Conclusion

The study showed that careful patient selection in a community-based publicly funded interdisciplinary pain management program can produce significant improvement in pain, physical, mental/emotional health and social function, with sustained long-term outcomes.

New Measurements of the Beam-Normal Single Spin Asymmetry in Elastic Electron Scattering over a Range of Spin-0 Nuclei

We report precision determinations of the beam-normal single spin asymmetries (A_{n}) in the elastic scattering of 0.95 and 2.18 GeV electrons off ^{12}C, ^{40}Ca, ^{48}Ca, and ^{208}Pb at very forward angles where the most detailed theoretical calculations have been performed. The first measurements of A_{n} for ^{40}Ca and ^{48}Ca are found to be similar to that of ^{12}C, consistent with expectations and thus demonstrating the validity of theoretical calculations for nuclei with Z≤20. We also report A_{n} for ^{208}Pb at two new momentum transfers (Q^{2}) extending the previous measurement. Our new data confirm the surprising result previously reported, with all three data points showing significant disagreement with the results from the Z≤20 nuclei. These data confirm our basic understanding of the underlying dynamics that govern A_{n} for nuclei containing ≲50 nucleons, but point to the need for further investigation to understand the unusual A_{n} behavior discovered for scattering off ^{208}Pb.

Measurement of Lepton-Jet Correlation in Deep-Inelastic Scattering with the H1 Detector Using Machine Learning for Unfolding

The first measurement of lepton-jet momentum imbalance and azimuthal correlation in lepton-proton scattering at high momentum transfer is presented. These data, taken with the H1 detector at HERA, are corrected for detector effects using an unbinned machine learning algorithm (multifold), which considers eight observables simultaneously in this first application. The unfolded cross sections are compared with calculations performed within the context of collinear or transverse-momentum-dependent factorization in quantum chromodynamics as well as Monte Carlo event generators.

328 Renal Cell Carcinoma (RCC) Metastasis to the Coracoid Process

A 51-year-old man was diagnosed with renal cell carcinoma (RCC) of the left kidney seven years ago. The tumour was staged as T2N0M0 and the patient underwent an uncomplicated open left radical nephrectomy. The RCC was classified as clear cell and he was kept on biannual renal surveillance thereafter.

Six years after the nephrectomy, the patient had reported a 5-month history of worsening pain and globally restricted movement in their right shoulder. A palpable mass on the coracoid process was noted. MRI imaging had shown a 27x30x17mm lesion suggestive of an expansile osseous mass in the coracoid process. An ultrasound guided biopsy was performed for definitive characterisation. Histology had reaffirmed that the lesion was in fact metastatic clear cell carcinoma in keeping with the patient’s renal primary. CT chest/abdomen/pelvis and NM-Bone SPECT CT scanning had shown no other sites of metastasis. A marginal resection of the lesion was performed with a good macroscopic clearance.

The common sites within the skeleton implicated in RCC include the spine, pelvis and femur. Tumours of the coracoid process are exceedingly rare. From the literature, only four cases of metastasis to the process have been noted: two from breast carcinoma, one from hepatocellular carcinoma and the other from basal cell carcinoma. Thus, this case denotes an extraordinary presentation for a metastasis of RCC many years after the nephrectomy. Furthermore, it emphasises the criticalness of regular follow-up and early intervention as delays could lead to systemic metastasis and a poorer prognosis.

A174 PERCEPTIONS OF CANNABIS USE IN WOMEN WITH INFLAMMATORY BOWEL DISEASE OF REPRODUCTIVE AGE: A CROSS-SECTIONAL STUDY

Background

Cannabis use in inflammatory bowel disease (IBD) may lead to improvement in pain and general health perception. However, its use during pregnancy may result in adverse outcomes such as preterm birth and altered fetal brain development. It remains unknown how women with IBD perceive Cannabis use during pregnancy and whether they discuss its use with their health-care providers.

Aims

To determine practices in, and perceptions of, cannabis use during pregnancy in women with IBD of reproductive age.

Methods

Women with IBD (age 18–45) were recruited at Mount Sinai Hospital and via social media platforms. Participants anonymously completed surveys on baseline demographics and IBD characteristics. They also completed a Cannabis questionnaire which asked about current use, perceived risks during pregnancy, and discussions with health-care providers. Categorical variables were reported as frequencies and compared using the chi-square test. Continuous variables were reported as medians and compared using the Mann-Whitney U test.

Results

Sixty-four women were included, 26 (40.6%) with ulcerative colitis, 37 (57.8%) with Crohn’s disease, and 1 (1.6%) with indeterminate colitis. Nineteen (29.7%) were preconception, 40 (62.5%) were pregnant, and 5 (7.8%) were post-partum. Eleven (18.0%) patients reported current Cannabis use, 4 (6.3%) during pregnancy. Cannabis users were more likely to have discussed its use with a health-care provider compared to non-users (45.5% vs. 5.7%, p&lt;0.001) and had longer IBD duration (12.00 vs. 9.00 years, p=0.05). Twenty-five (42.4%) were unsure of the risks of Cannabis use in pregnancy, of which only two had discussed this with a health-care provider. Reasons for fear of Cannabis use included risk of fetal oxygen restriction (n=13, 20.3%), impact on brain development (n=29, 46.0%), and risk of fetal respiratory issues (n=18, 28.6%). Only eight (12.5%) patients reported having a conversation about Cannabis use during pregnancy with their health-care provider; all of whom felt its consumption was unsafe during pregnancy.

Conclusions

Many women with IBD report being unsure of risks of Cannabis use during pregnancy. With the legalization of Cannabis in Canada, it is imperative patients and health-care providers discuss the risks and benefits of its use, particularly during vulnerable times such as pregnancy.

Funding Agencies

None

Association of Signs and Symptoms at Menarche with Pitta Pre-dominant Prakriti: An Observational Study

Background: Menarche a sign of puberty which links childhood to adult hood. It is the phase of progression of sexual characters required at the adolescent’s age. It is seen that premenstrual symptoms regularly occurs in luteal phase of menstrual cycle. Similarly, when we can see premenarcheal symptoms in luteal phase of first menstrual cycle. Bhawmishra has explained that difference in color is due to different Prakriti es of individuals and vitiated doshas are responsible for symptoms like pain and burning sensation. Materials and Methods: A total 673 girls were screened from Wardha city and out of them 150 were recruited for the study. Data were gathered with the help of specially designed proforma and Prakriti questionnaire. Qualitative analysis was done based on recorded data. Observation & Results: Around 105 girls with Pitta Prakriti noted the problem of dysmenorrhea. Various observations were recorded based on regularity (16.67%)- irregularity (83.33%), quantity (Excess 19.34%, Moderate 68.66%, Scanty 12%), consistency (Clot 23.34%, Viscous 37.33%, Watery 39.33%), smell (Foul 18.67%, Normal 81.33%), dysmenorrhea condition (No 30%, Yes 70%), pain intensity (High 16.67%, Medium 72.67%, Scanty 10.66%) and other associated sign & symptoms like back pain, headache, pain in abdomen, body ache, stomach pain. Conclusion: It was concluded that average age group were seen around 12 years, majority of participants had watery flow and viscid flow which can be explained as Pitta dosha has dominance of Agni. The duration of menstruation was seen averagely about 6 days in most of the participants.

Demographics, Pain Characteristics and Diagnostic Classification Profile of Chronic Non-Cancer Pain Patients Attending a Canadian University-Affiliated Community Pain Clinic

INTRODUCTION

Little information exists regarding the characteristics of patients with chronic non-cancer pain (CNCP) attending Canadian pain clinics. The study describes the demographics, pain characteristics and the diagnostic classification profile of such patients attending a university-affiliated community-based pain clinic in the Greater Toronto Area.

METHODS

Retrospective descriptive study based on 644 unique consecutive CNCP patients assessed between January 2016 and December 2017.

RESULTS

The female/male ratio was 1.6:1; 80% were younger than 65 years; 43% held some form of employment (full-time, part-time or self employment); median pain duration was 3 years; car accidents and medical conditions accounted for 28 and 27% of pain onset, respectively; 34% had four or more distinct areas of pain; and low back pain (LBP) was the most prevalent site (66%), but was the sole site of pain in less than a third of these patients. Age was positively associated with LBP prevalence. Self-reported health service utilization (visits to the emergency room, pain physician or psychologist) increased with patient psychopathology. Cannabis was used by 15% of the cohort and opioids by 34.5%, with only one in six opioid users exceeding 90 mg of morphine equivalent dose per day. Comparison of our data to three previously published studies from other Canadian pain clinics demonstrated both similarities and substantial differences between the populations.

CONCLUSION

Our study highlights regional differences between CNCP population phenotypes. Recognition of biomedical, psychological and socio-environmental factors affecting pain should be considered for patient stratification and rational approaches to treatment, as "one size treatment does not fit all".

Probing Gluon Spin-Momentum Correlations in Transversely Polarized Protons through Midrapidity Isolated Direct Photons in p^{↑}+p Collisions at sqrt[s]=200 GeV

Studying spin-momentum correlations in hadronic collisions offers a glimpse into a three-dimensional picture of proton structure. The transverse single-spin asymmetry for midrapidity isolated direct photons in p^{↑}+p collisions at sqrt[s]=200  GeV is measured with the PHENIX detector at the Relativistic Heavy Ion Collider (RHIC). Because direct photons in particular are produced from the hard scattering and do not interact via the strong force, this measurement is a clean probe of initial-state spin-momentum correlations inside the proton and is in particular sensitive to gluon interference effects within the proton. This is the first time direct photons have been used as a probe of spin-momentum correlations at RHIC. The uncertainties on the results are a 50-fold improvement with respect to those of the one prior measurement for the same observable, from the Fermilab E704 experiment. These results constrain gluon spin-momentum correlations in transversely polarized protons.

556 A Prospective Review of Risk Factors, Clinical Presentation and Management Outcomes for Chronic Pancreatitis

Aim

and objectives: To identify the risk factors, symptoms, and severity of Chronic pancreatitis (CP) on admission. To determine the relationship between pancreatic duct diameter and severity of pain and to assess extent of pain relief achieved by medical, endoscopic, and surgical intervention.

Method

75 patients with CP were admitted over 2 years. Data collected included etiology, symptoms, pain scores and CT/MRCP findings. Patients were classified into mild, moderate, and severe category according to Cambridge classification. Type and response to treatment was recorded. Statistical correlation of the pancreatic duct diameter and pain severity as well as the comparison of pain scores after medical, surgical and endoscopy was performed using Chi square test (p value &lt;0.05)

Results

Median age of presentation of CP was 43 years. Male: female ratio was 3:1. Alcohol was the etiology in 66 %, 99% presented with pain, 65 % belonged to severe category. There was no statistical correlation between pain severity and duct diameter. Pain relief following medical management was 66 %, endoscopic - 73% and surgical - 83 %. There was no correlation between Cambridge classification and pain severity. There was no statistical difference between pain relief offered by either of the three modalities. However, there was a statistically significant correlation between duct diameter and type of intervention.

Conclusions

There is no consensus on the best treatment modality for CP as pain relief was equivalent amongst all the modalities. Therefore, the choice of intervention for patients suffering from chronic pancreatitis should be based on imaging characteristics and symptomology.

696 Are Group and Save Samples Necessary for Common Urological Procedures?

Aim

Blood tests are routinely performed as a part of pre-operative assessment (pre-op). We looked at the number of group and save (G+S) samples taken at pre-op and compared that to the number of patients needing blood transfusion having undergone common Urological procedures at our hospital. Our objective was to assess the utility of this invasive procedure in this clinical setting.

Method

Data was retrospectively collected from electronic patient records on 413 patients undergoing elective urological procedures 1st June 2020 to 30th September 2020 at Colchester General Hospital. Major procedures like radical prostatectomies, nephrectomies were excluded. Patients who had G+S samples done prior to surgery were checked. This was compared to the patients who required transfusions.

Results

Amongst 413 patients who underwent an elective urological procedure, 169(41%) were day-case endoscopic, 151(37%) were inpatient, and 93(22%) were penoscrotal procedures. 104(25%) patients had G+S taken, with only 5 patients (1.2%) requiring transfusion. 24(14.2%) patients undergoing day case procedures,79(52.3%) patients undergoing inpatient procedures and 1(1.1%) patient undergoing penoscrotal procedures had G+S tests done. Only 7(1.7%) patients had a baseline haemoglobin of less than 100.

Conclusions

Our data showed that many G+S samples were unnecessary. TURBTs (transurethral resection of bladder tumours) were most likely to need transfusion. Education was fed-back to those running pre-operative assessment clinics that G+S should be considered for TURBTs and those with Hb &lt; 100. We recommend running this audit again to further quantify the G+S tests which could be avoided.

Consensus-based recommendations for titrating cannabinoids and tapering opioids for chronic pain control

AIMS

Opioid misuse and overuse have contributed to a widespread overdose crisis and many patients and physicians are considering medical cannabis to support opioid tapering and chronic pain control. Using a five-step modified Delphi process, we aimed to develop consensus-based recommendations on: 1) when and how to safely initiate and titrate cannabinoids in the presence of opioids, 2) when and how to safely taper opioids in the presence of cannabinoids and 3) how to monitor patients and evaluate outcomes when treating with opioids and cannabinoids.

RESULTS

In patients with chronic pain taking opioids not reaching treatment goals, there was consensus that cannabinoids may be considered for patients experiencing or displaying opioid-related complications, despite psychological or physical interventions. There was consensus observed to initiate with a cannabidiol (CBD)-predominant oral extract in the daytime and consider adding tetrahydrocannabinol (THC). When adding THC, start with 0.5-3 mg, and increase by 1-2 mg once or twice weekly up to 30-40 mg/day. Initiate opioid tapering when the patient reports a minor/major improvement in function, seeks less as-needed medication to control pain and/or the cannabis dose has been optimised. The opioid tapering schedule may be 5%-10% of the morphine equivalent dose (MED) every 1 to 4 weeks. Clinical success could be defined by an improvement in function/quality of life, a ≥30% reduction in pain intensity, a ≥25% reduction in opioid dose, a reduction in opioid dose to <90 mg MED and/or reduction in opioid-related adverse events.

CONCLUSIONS

This five-stage modified Delphi process led to the development of consensus-based recommendations surrounding the safe introduction and titration of cannabinoids in concert with tapering opioids.

Day-case approach to immediate breast reconstruction: pushing the boundaries of ambulatory breast surgery in the post-COVID-19 era

INTRODUCTION

Day-case surgery is safe and efficacious for most breast surgical procedures. Limited data exist on its use in immediate breast reconstruction. We present our experience of day-case management of mastectomy with immediate pre-pectoral implant-based reconstruction (IBR).

METHODS

Data were collected on 47 patients who underwent day-case skin-sparing (SSM) or nipple-sparing (NSM) mastectomy with pre-pectoral IBR between October 2017 and September 2019. Clinicopathological data were collected, including postoperative complications, re-admission and re-operation. The data were compared to published national standards.

RESULTS

Median age was 52 years (range 37-74). Thirty-two patients (68%) had an SSM and 15 (32%) had an NSM. Two patients (4%) had risk-reducing mastectomies and 45 had treatment for invasive cancer or ductal carcinoma in situ (DCIS). Mean tumour size was 33.3mm (range 7-85mm). Forty-two (89%) patients went home on the day of surgery. No patients required re-operation in the first 48 hours. The median postoperative follow-up time was 11.4 months (range 1.8-22.7 months). During the first 90-day postoperative period, eight patients (17%) developed superficial skin necrosis, five patients (10.6%) developed postoperative infections and five patients (10.6%) suffered an implant loss. Eight patients (17%) were readmitted for re-operation. Compared to UK national standards set in the iBRA study, our cohort has demonstrated comparable postoperative infection, implant loss and re-operation and re-admission rates.

CONCLUSION

We have demonstrated close to 90% day-case success rate for mastectomy with IBR. These early data suggest that immediate IBR can be carried out in a manner that is cost-efficient without impacting surgical outcomes.

311 Can We Predict Extraprostatic Extension (EPE) Prior To Radical Prostatectomy? – A Single Institution Comparison of Pre-Operative Biopsy Histology and Multiparametric MRI (mpMRI) With Radical Prostatectomy Specimen Histology

Introduction

Prostate biopsies and mpMRI play an integral role in diagnosis of prostate cancer. The aim of our study was to assess the ability to predict EPE based on pre-operative histology and mpMRI.

Method

We retrospectively analysed 235 patients who underwent radical prostatectomy between January 2015 and April 2017. All patients underwent pre-biopsy mpMRI scans and prostate biopsies. All mpMRIs were reported by dedicated uro-radiologists and all histology was reported by dedicated uro-pathologists.

Results

17/25 patients showing EPE on mpMRI had it confirmed on final histology.

a53/210 patients showing organ-confirmed disease on mpMRI had EPE on final histology.

40/49 patients who had Gleason 6 adenocarcinoma were organ-confined.

61/186 patients with &gt; Gleason 7 adenocarcinoma had EPE.

Sensitivity of mpMRI was 25% with a specificity of 95%. The positive predictive value (PPV) was 68% and negative predictive value (NPV) was 75%.

The specificity of pre-biopsy Gleason score &gt; 7 to predict EPE was 81% and sensitivity was 33% with a PPV of 87%.

Conclusions

Our data suggests that by using &gt; Gleason 7 and mpMRI as a combination, we can reliably predict EPE on final histology which in turn will help counsel patients appropriately for treatment options. Further data collection is ongoing at our institution.

693 Are Virtual Clinics the New ‘Normal’? – A Single-Institution Comparative Analysis of Outcomes and Cost-Effectiveness of Virtual and Face-To-Face Clinics

Introduction

The coronavirus (COVID-19) pandemic has had a profound impact on clinicians, hospital resources and patients. Urology Virtual clinics (VCs) were initiated at our institution to ensure continued provision of service during the pandemic. The study aim was to analyse outcomes and cost-effectiveness of VCs compared to pre-COVID-19 face-to face (F2F) clinics.

Method

We retrospectively analysed the VCs from 18^th March 2020 to 1st July 2020 and compared them to F2F clinics in the same period in 2019. Clinical outcomes were compared, and potential financial savings were estimated to see if VCs can be incorporated into future practice.

Results

1317 patients were reviewed in 2020 as compared to 1941 in 2019. We noted similar rates of discharges [25.4% (2020) v/s 24.1% (2019)], follow-ups (48.7% (2020) v/s 48.4% (2019)] and patients who did not attend/answer (6.8% (2020) v/s 6.6% (2019)]. Potentially, over £100,000 can be saved by changing 50% appointments to VCs.

Conclusions

Our data shows that VCs are non-inferior to F2F clinics and have allowed continued effective service provision during the COVID-19 pandemic. There is potential to incorporate VCs into future practice without compromising on efficacy. Further data collection and analysis is ongoing at our institution on a larger scale.

Accurate Determination of the Neutron Skin Thickness of ^{208}Pb through Parity-Violation in Electron Scattering

We report a precision measurement of the parity-violating asymmetry A_{PV} in the elastic scattering of longitudinally polarized electrons from ^{208}Pb. We measure A_{PV}=550±16(stat)±8(syst) parts per billion, leading to an extraction of the neutral weak form factor F_{W}(Q^{2}=0.00616  GeV^{2})=0.368±0.013. Combined with our previous measurement, the extracted neutron skin thickness is R_{n}-R_{p}=0.283±0.071  fm. The result also yields the first significant direct measurement of the interior weak density of ^{208}Pb: ρ_{W}^{0}=-0.0796±0.0036(exp)±0.0013(theo)  fm^{-3} leading to the interior baryon density ρ_{b}^{0}=0.1480±0.0036(exp)±0.0013(theo)  fm^{-3}. The measurement accurately constrains the density dependence of the symmetry energy of nuclear matter near saturation density, with implications for the size and composition of neutron stars.

Microvascular reconstruction for head and neck cancers in high risk population: clinical outcomes and complications

INTRODUCTION

Microvascular reconstruction is the gold standard for reconstruction in oral cavity cancers. Age and comorbidities determine the type of reconstruction. We aimed to analyse the impact of high-risk comorbidities on perioperative morbidity.

METHODS

This is a retrospective study of 317 patients undergoing microvascular reconstruction from January 2014 to December 2017. High risk patients were based on age, American Society of Anaesthesiologists (ASA) grade (III/IV) and Charlson comorbidity index (CCI) score >4; overall, 73 out of 317 patients were evaluated.

RESULTS

Median age was 59 years. Five patients (6.8%) had complete flap failures and seven (9.5%) had minor complications (wound breakdown, bleeding, wound dehiscence, partial flap loss). ASA score of IV was significantly associated with morbidity while age >65 years and CCI >4 was not associated. The overall flap success rate was 93.2%.

CONCLUSIONS

A high-risk population has nearly similar outcomes for microvascular reconstruction as a younger age group. High ASA score adversely affects surgery-related outcomes.

Patient-reported outcomes in those consuming medical cannabis: a prospective longitudinal observational study in chronic pain patients

PURPOSE

We investigated patients with chronic pain seeking medical cannabis. We assessed their demographics, patterns of cannabis use, and the long-term effectiveness of cannabis on their pain and functional domains.

METHODS

This observational study enrolled patients between 8 September 2015 and 31 July 2018 from community-based cannabis clinics in Ontario, Canada. In addition to collecting demographic information, the primary outcomes studied were pain intensity and pain-related interference scores assessed at baseline, three, six, and 12 months. Using validated questionnaires, we also assessed anxiety, depression, quality of life (QoL), general health symptoms, neuropathic pain, self-reported opioid consumption, and adverse events.

RESULTS

Of the 1,000 patients consented, 757 (76%) participated at one or more of the study time points. At six and 12 months, 230 (30.4%) and 104 (13.7%) of participants were followed up, respectively. Most participants were female (62%), Caucasian (91%), and sought cannabis for pain relief (88%). Time was a significant factor associated with improvement in pain intensity (P < 0.001), pain-related interference scores (P < 0.001), QoL (P < 0.001), and general health symptoms (P < 0.001). Female sex was significantly associated with worse outcomes than male sex including pain intensity (P < 0.001) and pain-related interference (P < 0.001). The proportion of individuals who reported using opioids decreased by half, from 40.8% at baseline to 23.9% at 12 months.

CONCLUSION

Despite significant challenges to collecting long-term observational data on patients who attempted a trial of cannabis products, approximately one-third of patients in the cohort remained on medical cannabis for six months. In this cohort, pain intensity and pain-related interference scores were reduced and QoL and general health symptoms scores were improved compared with baseline.

Erratum: Evolution of π^{0} Suppression in Au+Au Collisions from sqrt[s_{NN}]=39 to 200 GeV [Phys. Rev. Lett. 109, 152301 (2012)]

This corrects the article DOI: 10.1103/PhysRevLett.109.152301.

Oncological outcomes in patients undergoing major glossectomy for advanced carcinoma of the oral tongue

INTRODUCTION

Major glossectomy is the treatment of choice in locally advanced tongue cancer. It remains the only option in the presence of recurrent or residual disease. The long-term outcomes for patients undergoing major glossectomy have traditionally been poor, with significant morbidity and poor oncological outcomes. The aim of this study was to report on oncological outcomes in patients undergoing major glossectomy.

METHODS

All patients undergoing major glossectomy between 2014 and 2018 were included in the study. The data of 85 patients with advanced carcinoma of the oral tongue were evaluated. All were under the care of a single surgical and reconstructive team at two hospitals in Mumbai.

RESULTS

The median patient age was 45 years. At the most recent follow-up, 55 patients (65%) were alive, 47 of whom were disease free. Twenty-nine patients (34%) had locoregional recurrence and twenty-five (29%) had distant metastasis. At a median follow-up of 19 months, rates for 2-year locoregional control, disease free survival (DFS) and overall survival (OS) were 69%, 61% and 62% respectively. Perinodal extension demonstrated a trend towards poor DFS (p=0.060), as did perineural invasion (p=0.055). Node positivity was a significant factor for poor OS, DFS and locoregional control. Multiple node involvement was significantly associated with poor OS on multivariate analysis (p=0.002).

CONCLUSIONS

Node positivity and multiple node involvement were associated with poor outcomes. Major glossectomy may be offered as a curative option for selected patients with advanced carcinoma of the oral tongue with node negative or limited neck nodal disease (N1).

Impact of comorbidities on perioperative outcomes for carcinoma of oral cavity

INTRODUCTION

Surgical management of oral cavity carcinoma involves composite resection with reconstruction. Comorbidities increase the risk of perioperative complications. Objective stratification is important for uneventful recovery. The Charlson Comorbidity Index and the Washington University Head and Neck Comorbidity Index were used to assess perioperative morbidity and mortality.

MATERIALS AND METHODS

This was a prospective study of 531 patients with head and neck squamous cell carcinoma who were treated between January 2014 and December 2017. Patients' comorbidity scores on the Charlson Comorbidity Index and Washington University Head and Neck Comorbidity Index were recorded.

RESULTS

The median age of the cohort was 49 years. Median Charlson Comorbidity Index score was 3 and Washington University Head and Neck Comorbidity Index was 0. There were five mortalities with a Charlson Comorbidity Index score of 4 or more. Fifteen patients had either infection, leak or postoperative bleeding. A Charlson Comorbidity Index of 4 or more was associated with higher event rate and poor overall survival (p=0.001).

CONCLUSION

Higher Charlson Comorbidity Index score is associated with increased incidence of peri-operative morbidity and mortality, while the Washington University Head and Neck Comorbidity Index is a poor predictor of the same.

Cross-sectional study of the prevalence, causes and management of hospital-onset diarrhoea

BACKGROUND

The National Health Service in England advises hospitals collect data on hospital-onset diarrhoea (HOD). Contemporaneous data on HOD are lacking.

AIM

To investigate prevalence, aetiology and management of HOD on medical, surgical and elderly-care wards.

METHODS

A cross-sectional study in a volunteer sample of UK hospitals, which collected data on one winter and one summer day in 2016. Patients admitted ≥72 h were screened for HOD (definition: ≥2 episodes of Bristol Stool Type 5-7 the day before the study, with diarrhoea onset >48 h after admission). Data on HOD aetiology and management were collected prospectively.

FINDINGS

Data were collected on 141 wards in 32 hospitals (16 acute, 16 teaching). Point-prevalence of HOD was 4.5% (230/5142 patients; 95% confidence interval (CI) 3.9-5.0%). Teaching hospital HOD prevalence (5.9%, 95% CI 5.1-6.9%) was twice that of acute hospitals (2.8%, 95% CI 2.1-3.5%; odds ratio 2.2, 95% CI 1.7-3.0). At least one potential cause was identified in 222/230 patients (97%): 107 (47%) had a relevant underlying condition, 125 (54%) were taking antimicrobials, and 195 (85%) other medication known to cause diarrhoea. Nine of 75 tested patients were Clostridium difficile toxin positive (4%). Eighty (35%) patients had a documented medical assessment of diarrhoea. Documentation of HOD in medical notes correlated with testing for C. difficile (78% of those tested vs 38% not tested, P<0.001). One-hundred and forty-four (63%) patients were not isolated following diarrhoea onset.

CONCLUSION

HOD is a prevalent symptom affecting thousands of patients across the UK health system each day. Most patients had multiple potential causes of HOD, mainly iatrogenic, but only a third had medical assessment. Most were not tested for C. difficile and were not isolated.

Nuclear Dependence of the Transverse Single-Spin Asymmetry in the Production of Charged Hadrons at Forward Rapidity in Polarized p+p, p+Al, and p+Au Collisions at sqrt[s_{NN}]=200 GeV

We report on the nuclear dependence of transverse single-spin asymmetries (TSSAs) in the production of positively charged hadrons in polarized p^{↑}+p, p^{↑}+Al, and p^{↑}+Au collisions at sqrt[s_{NN}]=200  GeV. The measurements have been performed at forward rapidity (1.4<η<2.4) over the range of transverse momentum (1.8<p_{T}<7.0  GeV/c) and Feynman x (0.1<x_{F}<0.2). We observed positive asymmetries for positively charged hadrons in p^{↑}+p collisions, and significantly reduced asymmetries in p^{↑}+A collisions. These results reveal a nuclear dependence of TSSAs for charged-hadron production in a regime where perturbative techniques are applicable. These results provide new opportunities to use p^{↑}+A collisions as a tool to investigate the rich phenomena behind TSSAs in hadronic collisions and to use TSSAs as a new handle in studying small-system collisions.