Nevin Manimala

Stroke. 2024 Mar 8. doi: 10.1161/STROKEAHA.123.043358. Online ahead of print.

ABSTRACT

BACKGROUND: Stroke with unknown time of onset can be categorized into 2 groups; wake-up stroke (WUS) and unwitnessed stroke with an onset time unavailable for reasons other than wake-up (non-wake-up unwitnessed stroke, non-WUS). We aimed to assess potential differences in the efficacy and safety of intravenous thrombolysis (IVT) between these subgroups.

METHODS: Patients with an unknown-onset stroke were evaluated using individual patient-level data of 2 randomized controlled trials (WAKE-UP [Efficacy and Safety of MRI-Based Thrombolysis in Wake-Up Stroke], THAWS [Thrombolysis for Acute Wake-Up and Unclear-Onset Strokes With Alteplase at 0.6 mg/kg]) comparing IVT with placebo or standard treatment from the EOS (Evaluation of Unknown-Onset Stroke Thrombolysis trial) data set. A favorable outcome was prespecified as a modified Rankin Scale score of 0 to 1 at 90 days. Safety outcomes included symptomatic intracranial hemorrhage at 22 to 36 hours and 90-day mortality. The IVT effect was compared between the treatment groups in the WUS and non-WUS with multivariable logistic regression analysis.

RESULTS: Six hundred thirty-four patients from 2 trials were analyzed; 542 had WUS (191 women, 272 receiving alteplase), and 92 had non-WUS (42 women, 43 receiving alteplase). Overall, no significant interaction was noted between the mode of onset and treatment effect (P value for interaction=0.796). In patients with WUS, the frequencies of favorable outcomes were 54.8% and 45.5% in the IVT and control groups, respectively (adjusted odds ratio, 1.47 [95% CI, 1.01-2.16]). Death occurred in 4.0% and 1.9%, respectively (P=0.162), and symptomatic intracranial hemorrhage in 1.8% and 0.3%, respectively (P=0.194). In patients with non-WUS, no significant difference was observed in favorable outcomes relative to the control (37.2% versus 29.2%; adjusted odds ratio, 1.76 [0.58-5.37]). One death and one symptomatic intracranial hemorrhage were reported in the IVT group, but none in the control.

CONCLUSIONS: There was no difference in the effect of IVT between patients with WUS and non-WUS. IVT showed a significant benefit in patients with WUS, while there was insufficient statistical power to detect a substantial benefit in the non-WUS subgroup.

REGISTRATION: URL: https://www.clinicaltrials.gov; Unique identifier: CRD42020166903.

PMID:38456303 | DOI:10.1161/STROKEAHA.123.043358

Ann Surg. 2024 Apr 1;279(4):631-639. doi: 10.1097/SLA.0000000000006132. Epub 2023 Oct 17.

ABSTRACT

OBJECTIVE: To compare general surgery outcomes at flagship systems, flagship hospitals, and flagship hospital affiliates versus matched controls.

SUMMARY BACKGROUND DATA: It is unknown whether flagship hospitals perform better than flagship hospital affiliates for surgical patients.

METHODS: Using Medicare claims for 2018 to 2019, we matched patients undergoing inpatient general surgery in flagship system hospitals to controls who underwent the same procedure at hospitals outside the system but within the same region. We defined a “flagship hospital” within each region as the major teaching hospital with the highest patient volume that is also part of a hospital system; its system was labeled a “flagship system.” We performed 4 main comparisons: patients treated at any flagship system hospital versus hospitals outside the flagship system; flagship hospitals versus hospitals outside the flagship system; flagship hospital affiliates versus hospitals outside the flagship system; and flagship hospitals versus affiliate hospitals. Our primary outcome was 30-day mortality.

RESULTS: We formed 32,228 closely matched pairs across 35 regions. Patients at flagship system hospitals (32,228 pairs) had lower 30-day mortality than matched control patients [3.79% vs. 4.36%, difference=-0.57% (-0.86%, -0.28%), P<0.001]. Similarly, patients at flagship hospitals (15,571/32,228 pairs) had lower mortality than control patients. However, patients at flagship hospital affiliates (16,657/32,228 pairs) had similar mortality to matched controls. Flagship hospitals had lower mortality than affiliate hospitals [difference-in-differences=-1.05% (-1.62%, -0.47%), P<0.001].

CONCLUSIONS: Patients treated at flagship hospitals had significantly lower mortality rates than those treated at flagship hospital affiliates. Hence, flagship system affiliation does not alone imply better surgical outcomes.

PMID:38456279 | DOI:10.1097/SLA.0000000000006132

Am J Sports Med. 2024 Mar 8:3635465241230068. doi: 10.1177/03635465241230068. Online ahead of print.

ABSTRACT

BACKGROUND: Time-dependent postoperative changes in knee joint line obliquity (KJLO) and subsequent adaptational changes in the hip and ankle joints have not been fully proven after medial open wedge high tibial osteotomy (MOWHTO).

PURPOSE: To investigate the serial postoperative changes in KJLO and subsequent adaptational changes in the hip and ankle joints over time after MOWHTO.

STUDY DESIGN: Case series, Level of evidence, 4.

METHODS: A total of 92 patients who underwent MOWHTO between April 2015 and December 2020 were evaluated. Radiographic parameters, including KJLO, ankle joint line obliquity (ALO), hip abduction angle (HAA), joint line convergence angle, weightbearing line ratio, and hip-knee-ankle angle, were analyzed in time sequence (preoperatively and 3, 6, 12, and 24 months postoperatively). Repeated-measures analysis of variance and post hoc analysis were used to demonstrate alterations and the statistical significance of KJLO and other related radiographic parameters over time.

RESULTS: The mean KJLO values were -1.9°, -2.1°, -2.7°, and -3.2° at 3, 6, 12, and 24 months postoperatively, respectively, indicating that there was consistent increase in valgus tilting of KJLO from 6 to 24 months (P < .001 for both 6-12 months and 12-24 months). ALO and HAA showed significant changes from 6 to 12 months (ALO, P < .001; HAA, P = .002), but not between 12 and 24 months (ALO: -3.0°, -2.7°, -1.9°, and -1.6°; HAA: -0.8°, -0.9°, -1.5°, and -1.8° at 3, 6, 12, and 24 months, respectively). The mean joint line convergence angle, weightbearing line ratio, and hip-knee-ankle angle did not change significantly from 3 months to 24 months postoperatively.

CONCLUSION: There was a consistent increase in valgus tilting of the postoperative KJLO from 6 to 24 months after MOWHTO. The adaptive ALO and HAA significantly changed between 6 and 12 months and were maintained until 24 months after MOWHTO. It is necessary to consider the adaptive change when hip or ankle surgery is planned within this period.

PMID:38456270 | DOI:10.1177/03635465241230068

Rapid Commun Mass Spectrom. 2024 May 15;38(9):e9725. doi: 10.1002/rcm.9725.

ABSTRACT

RATIONALE: Mass spectrometry imaging (MSI) elevates the power of conventional mass spectrometry (MS) to multidimensional space, elucidating both chemical composition and localization. However, the field lacks any robust quality control (QC) and/or system suitability testing (SST) protocols to monitor inconsistencies during data acquisition, both of which are integral to ensure the validity of experimental results. To satisfy this demand in the community, we propose an adaptable QC/SST approach with five analyte options amendable to various ionization MSI platforms (e.g., desorption electrospray ionization, matrix-assisted laser desorption/ionization [MALDI], MALDI-2, and infrared matrix-assisted laser desorption electrospray ionization [IR-MALDESI]).

METHODS: A novel QC mix was sprayed across glass slides to collect QC/SST regions-of-interest (ROIs). Data were collected under optimal conditions and on a compromised instrument to construct and refine the principal component analysis (PCA) model in R. Metrics, including mass measurement accuracy and spectral accuracy, were evaluated, yielding an individual suitability score for each compound. The average of these scores is utilized to inform if troubleshooting is necessary.

RESULTS: The PCA-based SST model was applied to data collected when the instrument was compromised. The resultant SST scores were used to determine a statistically significant threshold, which was defined as 0.93 for IR-MALDESI-MSI analyses. This minimizes the type-I error rate, where the QC/SST would report the platform to be in working condition when cleaning is actually necessary. Further, data scored after a partial cleaning demonstrate the importance of QC and frequent full instrument cleaning.

CONCLUSIONS: This study is the starting point for addressing an important issue and will undergo future development to improve the efficiency of the protocol. Ultimately, this work is the first of its kind and proposes this approach as a proof of concept to develop and implement universal QC/SST protocols for a variety of MSI platforms.

PMID:38456255 | DOI:10.1002/rcm.9725

Aust J Rural Health. 2024 Mar 8. doi: 10.1111/ajr.13097. Online ahead of print.

ABSTRACT

INTRODUCTION: In older people undergoing surgery, there is a lower tolerance for complications. This highlights the need for documented clinical practices on proper prevention, pre-screening and management of complications such as postoperative delirium (POD). Evidence-based clinical practice guidelines exist for delirium management; however, the management of delirium in clinical settings differs widely.

OBJECTIVE: This study aims to develop an understanding of the knowledge, components of self-efficacy (confidence/competence), and clinical practice related to POD care among preoperative and recovery nurses across different types of geographical locations in Australia.

DESIGN: A 27-item online survey was sent out to professional associations focused on perioperative care across Australia. The participants included practicing registered nurses specialising in perioperative care. The main outcome measures were Knowledge, confidence/competence and clinical practice relating to POD care in older patients.

FINDINGS: Respondents were categorised into two groups-major cities and rural and remote. Mean age was 46.3 years for respondents in Australian major cities and 49.5 for the comparison group. There was a statistically significant difference between Australian major cities and ‘rural and remote’ in confidence in detecting hyperactive delirium, 25.2% versus 11.7% respectively as well as managing hyperactive delirium, 13.8% versus 1.7%, respectively. Similar results were also observed on hypoactive delirium. Respondents from both groups did not mirror the ideal situation in managing a hyperactive delirium.

DISCUSSION: Results from this study are inconclusive and there is no clear-cut observation in clinical practice or knowledge between the two geographical categories in this study.

CONCLUSION: The absence of a distinct strategy with POD prevention highlights the need for a uniform approach and consensus on POD prevention and management in older people. This can be achieved by creating more awareness and education through professional development related to POD.

PMID:38456229 | DOI:10.1111/ajr.13097

Euro Surveill. 2024 Mar;29(10). doi: 10.2807/1560-7917.ES.2024.29.10.2400109.

ABSTRACT

We estimated vaccine effectiveness (VE) of SARS-CoV-2 Omicron XBB.1.5 vaccination against self-reported infection between 9 October 2023 and 9 January 2024 in 23,895 XBB.1.5 vaccine-eligible adults who had previously received at least one booster. VE was 41% (95% CI: 23-55) in 18-59-year-olds and 50% (95% CI: 44-56) in 60-85-year-olds. Sequencing data suggest lower protection against the BA.2.86 (including JN.1) variant from recent prior infection (OR = 2.8; 95% CI:1.2-6.5) and, not statistically significant, from XBB.1.5 vaccination (OR = 1.5; 95% CI:0.8-2.6).

PMID:38456217 | DOI:10.2807/1560-7917.ES.2024.29.10.2400109

JMIR Serious Games. 2024 Feb 27;12:e39587. doi: 10.2196/39587.

ABSTRACT

BACKGROUND: Health education games make health-related tasks enjoyable and interactive, thereby encouraging user participation. Entrepreneurs and health educators can leverage online crowdfunding platforms, such as Kickstarter, to transform their innovative ideas into funded projects.

OBJECTIVE: This research focuses on health education game initiatives on Kickstarter. Through an online user survey, it aims to understand user perceptions and evaluate the significance of 8 distinct components that may influence the success of such crowdfunding initiatives.

METHODS: A total of 75 participants evaluated games using 8 dimensions: game rules, learning objectives, narrative, content organization, motivation, interactivity, skill building, and assessment and feedback. The survey data were analyzed using descriptive statistical analysis, exploratory factor analysis, the Wilcoxon-Mann-Whitney test, and multivariate analysis.

RESULTS: Exploratory data analysis showed that, among the 8 dimensions, skill building, content organization, and interactivity were the top-ranking dimensions most closely associated with crowdfunding health education game. The 8 dimensions can be grouped into 3 categories from the exploratory factor analysis: game content-, instruction-, and game design-related components. Further statistical analysis confirmed the correlation between these dimensions with the successful crowdfunding of health education games.

CONCLUSIONS: This empirical analysis identified critical factors for game proposal design that can increase the likelihood of securing crowdfunding support.

PMID:38456198 | DOI:10.2196/39587

Open Forum Infect Dis. 2024 Jan 22;11(3):ofae029. doi: 10.1093/ofid/ofae029. eCollection 2024 Mar.

ABSTRACT

BACKGROUND: Data on tecovirimat effectiveness for human mpox are limited. We conducted a retrospective cross-sectional interview-based study to identify associations between tecovirimat treatment and the mpox clinical course.

METHODS: Using public health surveillance data from King County, Washington, we recruited and interviewed persons diagnosed with mpox during May-October 2022. We calculated descriptive statistics on demographics, vaccination status, comorbidities, and symptoms including 3 self-reported dates (symptom onset, first date of symptom improvement, and illness resolution). We used multivariable linear regression, stratified by illness severity, to evaluate the association of tecovirimat treatment with time to symptom improvement and time to illness resolution. We compared individuals who did not receive tecovirimat to participants who started tecovirimat early (≤5 days from symptom onset) and late (>5 days and ≤28 days from symptom onset) in their illness.

RESULTS: Of 465 individuals diagnosed with mpox, 115 (25%) participated in this study. Eighty participants (70%) received tecovirimat and 43 (37%) initiated tecovirimat early. Sixty-eight (59%) reported severe symptoms during their illness, including proctitis (n = 38 [33%]), rectal bleeding (n = 27 [24%]), or severe pain (n = 24 [21%]). In the multivariable analysis, early tecovirimat was associated with shorter time to symptom improvement (-5.5 days, P = .04) among participants with severe illness but not among those with nonsevere illness (0.9 day, P = .66). Early tecovirimat was not associated with faster illness resolution, regardless of severity.

CONCLUSIONS: Our small study suggests that early tecovirimat initiation may hasten subjective symptomatic improvement in people with severe mpox. Larger randomized trials are needed to evaluate this finding.

PMID:38456195 | PMC:PMC10919389 | DOI:10.1093/ofid/ofae029

J Orthop. 2024 Feb 28;53:41-48. doi: 10.1016/j.jor.2024.02.041. eCollection 2024 Jul.

ABSTRACT

BACKGROUND: Cubital tunnel syndrome (CUTS) is a common upper limb compression neuropathy with significant consequences when left untreated. Surgical decompression remains gold-standard treatment for moderate to severe disease, however the optimal operative technique remains unclear. This network meta-analysis (NMA) of Level I and II randomised prospective studies aims to discern superiority between open in-situ, endoscopic and anterior transposition (subcutaneous or submuscular techniques) with respect to the primary outcome of response-to-treatment and secondary outcomes which include complications, post-operative chronic pain VAS scale, return to work and re-operation.

METHODS: This NMA adhered to the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines. PubMed, Web of Science, Cochrane Central, Science direct and Embase were searched. The MESH database was further searched with the terms ‘cubital tunnel’ to improve sensitivity of the search. Data pertaining to the primary and secondary outcomes were pooled for NMA.

RESULTS: Following abstract and full-text screening, 10 randomised prospective trials were included. There was no statistical difference in the response-to-treatment between the four studied techniques. Endoscopic decompression conferred a significantly higher complication rate compared to open decompression (Odds Ratio [OR], 4.21; 95% CI, 1.22-14.59). Endoscopic decompression had a statistically significant lower risk of post-operative chronic pain compared to open in-situ decompression (OR, 0.03, 95% CI, 0.00-0.32). There were no differences between techniques with respect to return to work or re-operation rates.

CONCLUSION: Response-to-treatment was similar between the four operative techniques for CUTS. Endoscopic decompression was found to be more hazardous when compared to open-in situ decompression but conferred significantly less post-operative chronic pain. There was significant heterogeneity in reported outcomes between the included articles. The authors suggest conducting more high-quality research with standardised outcome reporting to facilitate comparison.

LEVEL OF EVIDENCE II: Systematic Review and Meta-analysis of Randomised Prospective Trials- Therapeutic study.

PMID:38456175 | PMC:PMC10915370 | DOI:10.1016/j.jor.2024.02.041

SAGE Open Med. 2024 Mar 6;12:20503121241233214. doi: 10.1177/20503121241233214. eCollection 2024.

ABSTRACT

BACKGROUND: The level of maternal satisfaction with delivery services significantly affects health service utilization among women. Ethiopia’s healthcare system and health facilities’ quality have not much improved, which may contribute to women’s generally poor levels of satisfaction and there was a limited study about client satisfaction on delivery services in the study area. Thus, the purpose of this study was to assess level of maternal satisfaction with delivery service and its associated factors among women who gave birth in Tullo Woreda public health facilities, Eastern Ethiopia.

METHODS: A facility-based cross-sectional study was conducted from 1 to 30 September 2020 among 355 women who gave birth in Tullo Woreda public health facilities, Eastern Ethiopia Data were collected using a pretested structured questionnaire through a face-to-face interview and entered into Epidata version 3.1 and analyzed using statistical package for the social sciences (SPSS) version 25. The prevalence was reported using a 95% confidence interval and summary measures. Predictors were assessed using a multivariable logistic regression analysis model and reported using an adjusted odds ratio with 95% CI. Statistical significance was declared at a p-value of <0.05.

RESULTS: The overall satisfaction of mothers on delivery service was 33.5% (95% CI: 27.81, 39.13). Factors such as having no antenatal care (ANC) for the index pregnancy (AOR = 0.33; 95% CI: 0.19, 0.56), women who came to health centers on foot (AOR = 0.17; CI: 0.04, 0.74) and by auto-rickshaw (AOR = 0.16; 95 % CI: 0.04, 0.64), mothers who did not satisfied with toilet service at the delivery room (AOR = 0.49; 95% CI: 0.12, 0.86) and who were not satisfied with maternal drugs availability (AOR = 0.65; 95% CI: 0.11, 0.95) were predictors of maternal satisfaction.

CONCLUSIONS: This study pointed out that only 33.5% of women were satisfied with delivery care services provided in public health facilities of the study area. Factors such as not having ANC, using foot and auto-rickshaw as means of transportation, availability of drugs, and toilets were predictor of maternal satisfactions. Awareness creation for the benefit of ANC follow-up and delivery in the health facilities and providing safe transportation during referral time may help mothers get a timely healthcare service, which may increase client satisfaction. The concerned entities must pay attention in timely availability of drugs and improving the toiles, which play a role in shaping and molding level of satisfaction of women.

PMID:38456162 | PMC:PMC10919126 | DOI:10.1177/20503121241233214