Leveraging artificial intelligence to summarize abstracts in lay language for increasing research accessibility and transparency.

OBJECTIVE: Returning aggregate study results is an important ethical responsibility to promote trust and inform decision making, but the practice of providing results to a lay audience is not widely adopted. Barriers include significant cost and time required to develop lay summaries and scarce infrastructure necessary for returning them to the public. Our study aims to generate, evaluate, and implement ChatGPT 4 lay summaries of scientific abstracts on a national clinical study recruitment platform, ResearchMatch, to facilitate timely and cost-effective return of study results at scale. MATERIALS AND METHODS: We engineered prompts to summarize abstracts at a literacy level accessible to the public, prioritizing succinctness, clarity, and practical relevance. Researchers and volunteers assessed ChatGPT-generated lay summaries across five dimensions: accuracy, relevance, accessibility, transparency, and harmfulness. We used precision analysis and adaptive random sampling to determine the optimal number of summaries for evaluation, ensuring high statistical precision. RESULTS: ChatGPT achieved 95.9% (95% CI, 92.1-97.9) accuracy and 96.2% (92.4-98.1) relevance across 192 summary sentences from 33 abstracts based on researcher review. 85.3% (69.9-93.6) of 34 volunteers perceived ChatGPT-generated summaries as more accessible and 73.5% (56.9-85.4) more transparent than the original abstract. None of the summaries were deemed harmful. We expanded ResearchMatch's technical infrastructure to automatically generate and display lay summaries for over 750 published studies that resulted from the platform's recruitment mechanism. DISCUSSION AND CONCLUSION: Implementing AI-generated lay summaries on ResearchMatch demonstrates the potential of a scalable framework generalizable to broader platforms for enhancing research accessibility and transparency.

Prevalence of hearing impairment in neonatal encephalopathy due to hypoxia-ischemia: a systematic review and meta-analysis.

BACKGROUND: This systematic review was undertaken to estimate the overall prevalence of hearing impairment in survivors of neonatal HIE. METHODS: PubMed, EMBASE, CINAHL, EMCARE and Cochrane databases, mednar (gray literature) were searched till January 2023. Randomized controlled trials and observational studies were included. The main outcome was estimation of overall prevalence of hearing impairment in survivors of HIE. RESULTS: A total of 71studies (5821 infants assessed for hearing impairment) were included of which 56 were from high income countries (HIC) and 15 from low- or middle-income countries (LMIC). Overall prevalence rate of hearing impairment in cooled infants was 5% (95% CI: 3-6%, n = 4868) and 3% (95% CI: 1-6%, n = 953) in non-cooled HIE infants. The prevalence rate in cooled HIE infants in LMICs was 7% (95% CI: 2-15%) and in HICs was 4% (95% CI: 3-5%). The prevalence rate in non-cooled HIE infants in LMICs was 8% (95% CI: 2-17%) and HICs was 2% (95% CI: 0-4%). CONCLUSIONS: These results would be useful for counseling parents, and in acting as benchmark when comparing institutional data, and while monitoring future RCTs testing new interventions in HIE. There is a need for more data from LMICs and standardization of reporting hearing impairment. IMPACT: The overall prevalence rate of hearing impairment in cooled infants with HIE was 5% (95% CI: 3-6%) and 3% (95% CI: 1-6%) in the non-cooled infants. The prevalence rate in cooled HIE infants in LMICs was 7% (95% CI: 2-15%) and in HICs was 4% (95% CI: 3-5%). The prevalence rate in non-cooled HIE infants in LMICs was 8% (95% CI: 2-17%) and HICs was 2% (95% CI: 0-4%). These results would be useful for counseling parents, and in acting as benchmark when comparing institutional data, and while monitoring future RCTs testing new interventions in HIE.

Postnatal Steroids Use for Bronchopulmonary Dysplasia in a Quaternary Care NICU.

OBJECTIVE: Intercenter variation and trends in postnatal steroids (PNS) use among preterm infants for prevention or treatment of bronchopulmonary dysplasia (BPD) is known. Understanding intracenter PNS use patterns facilitate implementation of center-specific change interventions to optimize outcomes.This study aimed to (i) quantify the proportion of infants who received PNS, and describe the timing, type, trends over time, regimen used, and deviations, and (2) describe the clinical characteristics and unadjusted outcomes of infants who received PNS. STUDY DESIGN: This was a cohort study in a quaternary neonatal intensive care unit including infants born at less than 33 weeks, and who received PNS for prevention or treatment of BPD between 2011 and 2021. Following data were included: proportion of babies who received PNS; type of PNS; age at initiation and duration; trends over time; deviation from published regimen; morbidity, mortality, and cointerventions. RESULTS: One hundred and eighty four infants (8% of <33 week' infants) received PNS. The median (interquartile range [IQR]) gestational age and birth weight were 25 (24-26) weeks and 720 (625-841) grams, respectively. The median (IQR) day of initiation and duration of PNS use were 29 (19-38) and 10 (10-22) days, respectively. One hundred and fifty-seven (85%) infants received dexamethasone (DX) and 22 (12%) received hydrocortisone as the first PNS course, and 71 (39%) infants received multiple courses. The proportion of infants receiving PNS remained unchanged, but the cumulative median dose received for BPD per patient increased by 56%. Nearly one-third of cumulative PNS dose came from PNS used for non-BPD indications. Forty-six percent infants had a deviation from published regimen (±20% deviation in duration or ±10% deviation in dose). Survival, survival without major morbidity, moderate-to-severe BPD, and technology dependence at discharge were 87, 2, 91, and 67%, respectively. CONCLUSION: Increased variation in PNS use, deviation from published regimen, and concurrent PNS exposure from non-BPD indication offer insights into implementing interventions to improve processes. KEY POINTS: · In this quaternary NICU, 8% of infants born before 33 weeks were administered postnatal steroids (PNS).. · The percentage of infants given PNS remained stable; however, the cumulative dose per patient for BPD rose.. · The study identified targeted interventions to minimize clinical practice variations at the center..

Effectiveness of Alprostadil for Ductal Patency.

OBJECTIVES: This study aims to describe the effectiveness of low initial alprostadil dosages to maintain a patent ductus arteriosus (PDA) in infants with ductal-dependent congenital heart disease (DDCHD). Secondary objectives were to describe any adverse drug events, describe prescribing trends, describe ductus arteriosus diameter changes, and compare the safety and efficacy of very low and low initial alprostadil dosage regimens. METHODS: This retrospective observational cohort study at the British Columbia's Women's and Children's Hospital neonatal intensive care unit and pediatric intensive care unit examined neonates admitted with DDCHD who received alprostadil to maintain ductal patency. Very low-dose alprostadil (less than 0.01 mcg/kg/min) versus low-dose alprostadil (equal to or greater than 0.01 mcg/kg/min) was examined. Effectiveness was defined as survival and infants not requiring a resuscitation event (cardiac arrest, cardiogenic shock, code blue, extracorporeal life support, requirement for emergent cardiac surgery, and respiratory acidosis). Adverse drug events with a Naranjo score of 3 or more were included. RESULTS: Alprostadil was effective for 88% of patients, with no difference between the very low-dose and low-dose groups. Of the 75 patients included, 25 received very low-dose alprostadil. Adverse drug events were common (51%) with neonates in the low-dose group experiencing more apnea and pyrexia than neonates in the very low-dose group. CONCLUSIONS: Alprostadil therapy was effective in maintaining the PDA in neonates with DDCHD with low-dosage regimens. Adverse drug events were common with both dosage regimens; however, the very low dosage appeared to have less apnea and pyrexia.

The impact of a care bundle with an emphasis on hemodynamic assessment on the short-term outcomes in neonates with congenital diaphragmatic hernia.

OBJECTIVE: To evaluate the short-term outcomes of implementing a care bundle emphasizing frequent hemodynamic assessments by echocardiography in neonates with congenital diaphragmatic hernia (CDH). STUDY DESIGN: This was a retrospective cohort study of infants with CDH admitted to a quaternary perinatal unit from January 2013 to March 2021. The primary composite outcome was defined as mortality or use of extracorporeal membrane oxygenation or need for respiratory support at discharge. RESULTS: We identified 37 and 20 CDH infants in Epoch I and II, respectively. More patch repairs (50% vs. 21.9%, p = 0.035) and echocardiograms (6[4-8] vs. 1[0-5], p = 0.003) were performed in Epoch II. While there were no differences in the primary outcome, there was a reduction in mortality in Epoch II (0% vs. 27%, p = 0.01). CONCLUSION: With the implementation of a CDH care bundle with an emphasis on hemodynamic assessment, we demonstrated a significant reduction in mortality.

ResearchMatch on FHIR: Development and evaluation of a recruitment registry and electronic health record system interface for volunteer profile completion.

Background: Obtaining complete and accurate information in recruitment registries is essential for matching potential participants to research studies for which they qualify. Since electronic health record (EHR) systems are required to make patient data available to external systems, an interface between EHRs and recruitment registries may improve accuracy and completeness of volunteers' profiles. We tested this hypothesis on ResearchMatch (RM), a disease- and institution-neutral recruitment registry with 1357 studies across 255 institutions. Methods: We developed an interface where volunteers signing up for RM can authorize transfer of demographic data, medical conditions, and medications from the EHR into a registration form. We obtained feedback from a panel of community members to determine acceptability of the planned integration. We then developed the EHR interface and performed an evaluation study of 100 patients to determine whether RM profiles generated with EHR-assisted adjudication included more conditions and medications than those without the EHR connection. Results: Community member feedback revealed that members of the public were willing to authenticate into the EHR from RM with proper messaging about choice and privacy. The evaluation study showed that out of 100 participants, 75 included more conditions and 69 included more medications in RM profiles completed with the EHR connection than those without. Participants also completed the EHR-connected profiles in 16 fewer seconds than non-EHR-connected profiles. Conclusions: The EHR to RM integration could lead to more complete profiles, less participant burden, and better study matches for many of the over 148,000 volunteers who participate in ResearchMatch.

pH-Responsive Polymeric Micelle Dynamic Complexes for Selective Killing of Helicobacter pylori.

Helicobacter pylori, the world's most common chronic infection-causing pathogen, is responsible for causing gastric ulcers, the fourth-leading cause of cancer-related death globally in 2020. In recent years, the effectiveness of the current treatment regimen (two antibiotics and one proton pump inhibitor) has often been plagued with problems such as resistance and the undesired elimination of commensal bacteria. Herein, we report the synthesis of block and random copolycarbonates, functionalized with cationic guanidinium and anionic acetate functional groups, aimed at selectively killing H. pylori in the acidic environment of the stomach, while remaining nontoxic to the commensal bacteria in the gut. The compositions of the polymers were fine-tuned so that the polymers were readily dispersed in water without any difficulty at both pH 3.0 and 7.4. The self-assembly behavior of the polymers at different pH values by dynamic light scattering showed that the random and block copolymers formed stable micelles in a simulated gastric environment (pH 3.0) while aggregated at pH 7.4. Both polymers demonstrated stronger antibacterial activity against H. pylori than the guanidinium-functionalized homopolymer without any acetate functional group at pH 3.0. The block copolymer was significantly more bactericidal at pH 3.0 across the concentrations tested, as compared to the random copolymer, while it did not show significant toxicity toward rat red blood cells (rRBCs) and HK-2 cells or bactericidal effect toward E. coli (a common gut bacterium) and nor caused aggregation of rRBCs at its effective concentration and at physiological pH of 7.4. Additionally, both the block and random copolymers were much more stable against hydrolysis at pH 3.0 than at pH 7.4. This study provides insight into the influence of both polymer architecture and dynamic assembly on the bioactivities of antimicrobial polymers, where the disassembly of coacervates into narrowly dispersed micelles at pH 3 make them potent antimicrobials aided by the protonated carboxylic acid block.

Biochemical investigations of polyphenol degradation enzymes in the phototrophic bacterium Rubrivivax gelatinosus.

Phloroglucinol (1,3,5-trihydroxybenzene) is an important intermediate in the degradation of flavonoids and tannins by anaerobic bacteria. Recent studies have shed light on the enzymatic mechanism of phloroglucinol degradation in butyrate-forming anaerobic bacteria, including environmental and intestinal bacteria such as Clostridium and Flavonifractor sp. Phloroglucinol degradation gene clusters have also been identified in other metabolically diverse bacteria, although the polyphenol metabolism of these microorganisms remain largely unexplored. Here, we describe biochemical studies of polyphenol degradation enzymes found in the purple non-sulfur bacterium Rubrivivax gelatinosus IL144, an anaerobic photoheterotroph reported to utilize diverse organic compounds as carbon sources for growth. In addition to the phloroglucinol reductase and dihydrophloroglucinol cyclohydrolase that catalyze phloroglucinol degradation, we characterize a Mn2+-dependent phloretin hydrolase that catalyzes the cleavage of phloretin into phloroglucinol and phloretic acid. We also report a Mn2+-dependent decarboxylase (DeC) that catalyzes the reversible decarboxylation of 2,4,6-trihydroxybenzoate to form phloroglucinol. A bioinformatics search led to the identification of DeC homologs in diverse soil and gut bacteria, and biochemical studies of a DeC homolog from the human gut bacterium Flavonifractor plautii demonstrated that it is also a 2,4,6-trihydroxybenzoate decarboxylase. Our study expands the range of enzymatic mechanisms for phloroglucinol formation, and provides further biochemical insight into polyphenol metabolism in the anaerobic biosphere.

A Review of Histamine-2 Receptor Antagonist and Proton Pump Inhibitor Therapy for Gastroesophageal Reflux Disease in Neonates and Infants.

Proton pump inhibitors (PPI) and histamine-2 receptor antagonists (H2RA) are commonly used medications in neonates and infants for the treatment of gastroesophageal reflux disease (GERD), especially in neonatal intensive care units (NICUs). A literature review was conducted to evaluate the efficacy and safety of histamine-2 receptor antagonists (H2RAs) and proton pump inhibitors (PPIs) in preterm neonates, term neonates, and infants. A total of 27 studies were included in this review. Antacid medications in studies have consistently shown positive pharmacodynamic effects, including increasing gastric pH, reducing the reflux index, and reducing the number of acidic reflux events. The benefit found in placebo-controlled trials are limited exclusively to these surrogate outcomes. The actual clinically salient outcomes which H2RAs and PPIs are used for, such as reduction in GERD symptoms, especially irritability and improved feed tolerance and weight gain, have consistently shown no clinical benefit. H2RAs and PPIs appear to be extremely well tolerated by the neonatal and infant populations, which would mimic our experience with these medications in our unit. The available data from large, retrospective cohort and case-control studies paint a much more concerning picture regarding the potential for an increased risk in the development of allergies, anaphylactic reactions, necrotizing enterocolitis (NEC), other nosocomial infections, and lower respiratory tract infections. Given the risks associated with and lack of clinical effectiveness of both H2RAs and PPIs, use of these medications should be limited to specific clinical situations. Further studies are required to determine whether antacid pharmacologic therapy might benefit certain neonates and infants, such as those with complex medical issues.

Prevalence of symptomatic tracheal morbidities after fetoscopic endoluminal tracheal occlusion: a systematic review and meta-analysis.

BACKGROUND: Fetoscopic endoluminal tracheal occlusion (FETO) has been shown to improve survival of infants with congenital diaphragmatic hernia (CDH). However, there are concerns that FETO may lead to tracheomegaly, tracheomalacia and related complications. METHODS: A systematic review was conducted to estimate the prevalence of symptomatic tracheal complications in infants who underwent FETO for CDH. Presence of one or more of the following was considered as tracheal complication: tracheomalacia, stenosis, laceration or tracheomegaly with symptoms such as stridor, effort-induced barking cough, recurrent chest infections or the need for tracheostomy, tracheal suturing, or stenting. Isolated tracheomegaly on imaging or routine bronchoscopy without clinical symptoms was not considered as tracheal morbidity. Statistical analysis was performed using the metaprop command on Stata V.16.0. RESULTS: A total of 10 studies (449 infants) were included (6 retrospective cohort, 2 prospective cohort and 2 randomised controlled trials). There were 228 infants who survived to discharge. Prevalence rates of tracheal complications in infants born alive were 6% (95% CI 2% to 12%) and 12% (95% CI 4% to 22%) in those who survived to discharge. The spectrum of severity ranged from relatively mild symptoms such as effort-induced barking cough to the need for tracheostomy/tracheal stenting. CONCLUSION: A significant proportion of FETO survivors have symptomatic tracheal morbidities of varying severity. Units that are planning to adopt FETO for managing CDH should consider ongoing surveillance of survivors to enable early identification of upper airway issues. Inventing FETO devices that minimise tracheal injury is needed.

Non-canonical Staphylococcus aureus pathogenicity island repression.

Mobile genetic elements control their life cycles by the expression of a master repressor, whose function must be disabled to allow the spread of these elements in nature. Here, we describe an unprecedented repression-derepression mechanism involved in the transfer of Staphylococcus aureus pathogenicity islands (SaPIs). Contrary to the classical phage and SaPI repressors, which are dimers, the SaPI1 repressor StlSaPI1 presents a unique tetrameric conformation never seen before. Importantly, not just one but two tetramers are required for SaPI1 repression, which increases the novelty of the system. To derepress SaPI1, the phage-encoded protein Sri binds to and induces a conformational change in the DNA binding domains of StlSaPI1, preventing the binding of the repressor to its cognate StlSaPI1 sites. Finally, our findings demonstrate that this system is not exclusive to SaPI1 but widespread in nature. Overall, our results characterize a novel repression-induction system involved in the transfer of MGE-encoded virulence factors in nature.

Utility of the Ages and Stages Questionnaire to Identify Developmental Delay in Children Aged 12 to 60 Months: A Systematic Review and Meta-analysis.

Importance: The Ages and Stages Questionnaire (ASQ) is a commonly used developmental screening tool, but its utility is debated. Objectives: To conduct a a systematic review and meta-analysis to evaluate ASQ's utility as a screening or diagnostic tool to identify developmental delay in children aged 12-60 months. Data Sources: Medline, EMBASE, CINAHL, PsycINFO, and Mednar were searched from inception until December 2021. Study Selection: Studies meeting both criteria were included. ASQ was performed at age 12 to 60 months or where the median age at ASQ was at least 12 months and formal developmental assessments were done within 2 months of ASQ. Data Extraction and Synthesis: True positive, false positive, false negative, and true negatives from individual studies were extracted. Meta-analysis was conducted with Stata version 16.1. Risk of bias was assessed using the QUADAS-2 tool. Certainty of evidence (COE) was assessed using GRADE guidelines. Main Outcomes and Measures: Ability of ASQ scores more than 2 SDs below the mean in more than 1 domain (ASQ-2SD) to identify any developmental delay or severe delay. Based on generally accepted interpretation of likelihood ratio (LR) values, a positive LR (PLR) more than 5 and a negative LR (NLR) of 0.2 or less were considered necessary to rule in or rule out developmental delay, respectively, with at least moderate probability. Results: Initial search yielded 5777 citations of which 43 were included in the review. Of them, 36 were included in the meta-analysis. The pooled sensitivity, specificity, PLR, and NLR are as follows: ASQ-2SD to predict any delay in 1 or more domain (n = 16), 0.77 (95% CI, 0.64-0.86), 0.81 (95% CI, 0.75-0.86), 4.10 (95% CI, 3.17-5.30), and 0.28 (95% CI, 0.18-0.44); ASQ-2SD to predict severe delay in 1 or more domain (n = 15), 0.84 (95% CI, 0.75-0.90), 0.77 (95% CI, 0.71-0.82), 3.72 (95% CI, 2.98-4.64), and 0.20 (95% CI, 0.13-0.32); ASQ-2SD motor domain to predict motor delay (n = 7), 0.41 (95% CI, 0.26-0.57), 0.94 (95% CI, 0.87-0.97), 6.5 (95% CI, 3.8-11.1), and 0.63 (95% CI, 0.50-0.81); and ASQ-2SD cognitive domain to predict cognitive delay (n = 2), 0.44 (95% CI, 0.24-0.65), 0.93 (95% CI, 0.81-0.95), 6.4 (95% CI, 2.4-16.8), and 0.61 (95% CI, 0.43-0.86). The COE was low/very low. Conclusions and Relevance: If a child aged 12 to 60 months passes all ASQ domains, there is a moderate probability that they do not have severe developmental delay (low COE). If a child aged 12-60 months fails the motor or cognitive domain of ASQ, there is a moderate probability that they have some motor or cognitive delay, respectively (very low COE). Trial Registration: PROSPERO (CRD42021268543).

The use of anticoagulants for rodent control in a mixed-use urban environmefent in Singapore: A controlled interrupted time series analysis.

Vector control remains an important strategy in preventing rodent-borne diseases. Studies quantifying the impact of anticoagulant bait use on rodent populations are scarce in tropical settings. This study examined the impact of anticoagulant bait use on three measures of rodent activity in Singapore to inform rodent-borne disease control strategies. Using a controlled interrupted time-series analytical design with negative binomial and linear regression models, the average rodent activity levels were compared in the pre- and post-intervention periods. There was a 62.7% (Incidence Rate Ratio (IRR): 0.373, 95% CI: [0.224, 0.620]) reduction in the number of rodents caught, a 25.8-unit (coefficient = -25.829, 95% CI: [-29.855, -21.804]) reduction in the number of 30 g/unit baits consumed and a 61.9% (IRR: 0.381, 95% CI: [0.218, 0.665]) reduction in the number of marred bait stations relative to the pre-intervention period. There was a rise in all three outcome measures within four months after the post-intervention period. This study provided strong evidence that anticoagulant baits substantially reduces rodent activity. The population resurgence after the post-intervention period reinforces the importance of timing the resumption of control measures aimed at reducing rodent-borne disease transmission.

Local nitroglycerin to facilitate peripheral arterial cannulation in children: systematic review and meta-analysis.

BACKGROUND: Neonates and children admitted to intensive care units require peripheral arterial cannulation to monitor their blood pressures and for blood sampling, but many times it is unsuccessful. OBJECTIVE: To conduct a systematic review and meta-analysis to evaluate the efficacy and safety of local nitroglycerin (NTG) to facilitate peripheral artery cannulation in neonates and children. REVIEW METHODS: PubMed, EMBASE, CINAHL, Emcare and Cochrane library were searched till August 2021. Grey literature was searched through Mednar. Data were extracted by two reviewers independently using a prespecified form and the risk of bias was assessed. Meta-analysis was conducted using a random-effects model. The I2 statistic was used to quantify statistical heterogeneity. Certainty of evidence was assessed using the criteria of inconsistency, imprecision, indirectness, publication bias and size of effect as per the Grading of Recommendations, Assessment, Development and Evaluations (GRADE) guidelines. RESULTS: Two randomised controlled trials (RCTs) were included in this meta-analysis (n=153). One was conducted in children 2-8 years of age and the other was in children <2 years. Both trials found increased success rates with the use of local NTG. Pooling of the two studies found that the first-attempt success rate was significantly higher in the NTG group (risk difference: 0.44, 95% CI 0.05 to 0.83; I2=89%). Overall procedure time was significantly lower in the NTG group (mean difference: -100.28 s, 95% CI -136.74 to -63.82; I2=0%). No major complications secondary to the use of NTG were noted. The GRADE of evidence was very low. CONCLUSION: Local NTG may be useful in facilitating peripheral arterial cannulation in children. Adequately powered RCTs are needed to confirm these findings.

"Send My Information": Increasing public accessibility to clinical trials by facilitating participant expression of interest.

Introduction: The process of identifying and connecting with clinical trial study teams can be challenging and difficult for members of the public. The national volunteer community registry, ResearchMatch, and the public clinical trials search tool, Trials Today, work in tandem to bridge this connection by providing a streamlined process for potential participants to identify clinical trials which may be of interest. Methods: Building on the existing infrastructure of ResearchMatch and Trials Today, we created a mechanism by which the public can request that their basic contact information (e.g., email/phone) be securely shared with any actively recruiting clinical trial, including trials with no existing relationship with ResearchMatch. Results: Within the first 2 years of use (July 2019-July 2021), ResearchMatch Volunteers sent 12,251 requests to study teams. On average, 20% of these requests were accepted by the study teams. Conclusions: The utilization of this tool indicates that there is active interest among members of the public to independently contact study teams about trials of interest. Additionally, research teams unaffiliated with ResearchMatch are willing to at minimum accept contact information. This allows ResearchMatch to successfully serve as a medium, connecting members of the public with actively recruiting trials.

The Ceraflex and Figulla atrial septal occluders: early and intermediate-term safety and efficacy study.

BACKGROUND: Ceraflex septal occluder and the Figulla atrial septal defect occluder have the advantage of a pivoting mechanism and softer device architecture. This study sought to examine the safety and efficacy of these occluders compared to the Amplatzer septal occluder. METHODS: This was a retrospective study. Between January, 2013 and April, 2020, patients with at least 6 months of follow-up were included. Early and late-onset outcomes were examined. RESULTS: Four hundred seven patients (range: 0.17-70.72 years; 53.1% >18 years; male: 29.2%) underwent atrial septal defect occlusion using Amplatzer septal occluder (n = 313), Ceraflex septal occluder (n = 36) and FSO (n = 58). A longer procedure time was observed in the Amplatzer septal occluder group. Early-onset complication rates in Amplatzer septal occluder, Ceraflex septal occluder and Figulla atrial septal defect occluder were 3.83%, 5.56% and 0%. Ten (2.46%) patients developed delayed complications (2.56%, 0% and 1.72% in the Amplatzer septal occluder, Ceraflex septal occluder and Figulla atrial septal defect occluder groups). Device erosion rate was not different between groups. The occlusion rates were comparable among all the devices. CONCLUSION: There is no significant difference in safety and efficacies between the novel atrial septal defect occluding devices compared to Amplatzer septal occluder.

Association of rodents with man-made infrastructures and food waste in Urban Singapore.

BACKGROUND: Rodent population control is an important measure in reducing the risk of rodent-borne disease transmission. In this study, we examined rodent activity in the sanitary waste network around the household waste-collection bin chamber of an urban residential apartment block. METHODS: We utilised infra-red camera traps to determine the pattern of rodent activity in a rodent-infested bin chamber and its associated sanitary waste network. Multivariable logistic regression was performed to assess the risk factors that were independently associated with rodent activity in the bin chambers. RESULT: The camera trap surveillance showed that the rodents were active in the bin chamber and sanitary network both in the day and at night. In the cross-sectional study, rodent activity in the bin chambers was independently associated with broken floor traps [Adjusted odds ratio (AOR): 36.7, CI: 21.3-66.3], calendar month [Log-likelihood ratio test (LRT) p = 0.002] and Town Council [LRT p = 0.004] variables. In restricted analysis, rodent activity in bin chambers was independently associated with defects in the wastewater pipe under the chamber [AOR: 12.3, CI: 4.3-51.7]. CONCLUSION: Our study suggests that urban municipal management councils should prioritize rodent control resources in areas according to the factors that increase the risk of rodent infestation.

The Effectiveness of Community Mental Health Teams in Relation to Team Cohesion, Authentic Leadership and Size of the Team: A study in the North West of Ireland.

Community Mental Health Teams (CMHTs) are increasingly being considered effective models of recovery focused care, however their effectiveness and factors that may affect it have not fully evaluated. Cross-sectional study in Ireland included 106 members from 8 CMHTs. We examined CMHT's effectiveness and the effects of authentic leadership, team cohesion, team members' experience and team tenure on effectiveness, by administering the Team Effectiveness Scale, Authentic Leadership Questionnaire, and Organizational Cohesion Scale. Data on demographics, discipline, years of experience, tenure in the same team, full or partial membership, and number of team members were collected. Results from multilevel regression analysis indicated significant association (p < 0.05) between effectiveness of CMHTs and factors including team cohesion, authentic leadership, size of the team and full membership. Therefore, to increase CMHTs effectiveness, interventions are needed to those areas: a switch to make leadership styles more authentic, to improve team cohesion, smaller team size and full membership.