The development and validation of a scoring tool to predict the operative duration of elective laparoscopic cholecystectomy

Background: The ability to accurately predict operative duration has the potential to optimise theatre efficiency and utilisation, thus reducing costs and increasing staff and patient satisfaction. With laparoscopic cholecystectomy being one of the most commonly performed procedures worldwide, a tool to predict operative duration could be extremely beneficial to healthcare organisations. Methods: Data collected from the CholeS study on patients undergoing cholecystectomy in UK and Irish hospitals between 04/2014 and 05/2014 were used to study operative duration. A multivariable binary logistic regression model was produced in order to identify significant independent predictors of long (> 90 min) operations. The resulting model was converted to a risk score, which was subsequently validated on second cohort of patients using ROC curves. Results: After exclusions, data were available for 7227 patients in the derivation (CholeS) cohort. The median operative duration was 60 min (interquartile range 45–85), with 17.7% of operations lasting longer than 90 min. Ten factors were found to be significant independent predictors of operative durations > 90 min, including ASA, age, previous surgical admissions, BMI, gallbladder wall thickness and CBD diameter. A risk score was then produced from these factors, and applied to a cohort of 2405 patients from a tertiary centre for external validation. This returned an area under the ROC curve of 0.708 (SE = 0.013, p  90 min increasing more than eightfold from 5.1 to 41.8% in the extremes of the score. Conclusion: The scoring tool produced in this study was found to be significantly predictive of long operative durations on validation in an external cohort. As such, the tool may have the potential to enable organisations to better organise theatre lists and deliver greater efficiencies in care

Determination of In-Situ Compressive Strength of Precast Concrete Girders

Verification of field compressive strength of precast concrete girders from 52 bridges in seven counties in California are presented. Nondestructive Testing (NDT) methods used are Proceq\u2019s Silver Schmidt Rebound Hammer and Ultrasonic Pulse Velocity (UPV) and James Instruments\u2019 Windsor Pin and Windsor Probe Systems. NDT tests were performed on concrete walls, slabs, and cylinders constructed under ambient and laboratory curing conditions at San Jose State University. Data from the laboratory testing in combination with data supplied by the manufacturer of the NDT equipment were utilized to develop strength prediction charts for the different bridge girders. Concrete cores from five selected bridges were taken, and compressive strength and NDT tests were performed and analyzed. Results obtained from the cores with the bridge prediction data were compared to verify accuracy of the predictions. The America Concrete Institute (ACI) 209 equation was utilized, and modified equations are proposed for more accurate bridge strength predictions

Mapping of infection prevention and control education and training in some countries of the World Health Organization’s Eastern Mediterranean Region: current situation and future needs

Abstract Background A strong understanding of infection prevention and control (IPC) procedures and comprehensive training among healthcare workers is essential for effective IPC programs. These elements play a crucial role in breaking the chain of nosocomial infections by preventing the transmission of resistant organisms to patients and staff members. This study mapped the components of IPC education and training across various member states of the World Health Organization (WHO) in the Eastern Mediterranean Region (EMR) at national, academic, and healthcare institutional levels. Methods A self-administered structured online questionnaire based on the WHO “Core Component 3” of IPC programs at the national and acute healthcare facility levels (IPC education and training) was given to national IPC focal persons in each of the WHO’s EMR countries between February and March 2023. Results From 14 of the 22 countries,15 IPC persons participated in the survey. Most countries have scattered nonhomogeneous IPC education programs in human health undergraduate majors without considering it a standalone module. Academic institutions are rarely involved, and elaborate and predefined undergraduate IPC education programs provided by universities are present in 21.4% of the countries. In 71.4% of these countries, postgraduate training targeting IPC professionals is provided by national IPC teams, primarily based on national IPC guidelines developed with the aid of the WHO. Generally, healthcare worker training relies heavily on healthcare facilities in 92.9% of the countries, rather than on a national training program. In 42.9% of the countries, practicing IPC physicians are not necessarily specialists of infectious disease or medical microbiologists and IPC nurses are not required to specialize in IPC. However, nonspecialized IPC professionals are expected to undergo training upon employment and before beginning practice. Nongovernmental organizations such as the WHO play a significant role in IPC education and in supporting national IPC authorities in establishing national IPC guidelines, as it is the case in 78.6% of these countries. Conclusion Clear disparities exist in IPC education and training across different countries in the WHO’s EMR. Establishing a regional scientific network specializing in IPC would help bridge the existing gaps and standardize this education within individual countries and across countries in the region. This region needs to establish IPC certification standards and standardized education curricula

Epidemiology of heart failure and long-term follow-up outcomes in a north-African population: Results from the NAtional TUnisian REgistry of Heart Failure (NATURE-HF)

International audienceThe NATURE-HF registry was aimed to describe clinical epidemiology and 1-year outcomes of outpatients and inpatients with heart failure (HF). This is a prospective, multicenter, observational survey conducted in Tunisian Cardiology centers. A total of 2040 patients were included in the study. Of these, 1632 (80%) were outpatients with chronic HF (CHF). The mean hospital stay was 8.7 ± 8.2 days. The mortality rate during the initial hospitalization event for AHF was 7.4%. The all-cause 1-year mortality rate was 22.8% among AHF patients and 10.6% among CHF patients. Among CHF patients, the older age, diabetes, anemia, reduced EF, ischemic etiology, residual congestion and the absence of ACEI/ ARBs treatment were independent predictors of 1-year cumulative rates of rehospitalization and mortality. The female sex and the functional status were independent predictors of 1-year all-cause mortality and rehospitalization in AHF patients. This study confirmed that acute HF is still associated with a poor prognosis, while the mid-term outcomes in patients with chronic HF seems to be improved. Some differences across countries may be due to different clinical characteristics and differences in healthcare systems