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Introduction: The study aimed to construct and validate a risk prediction model for incidence of postoperative renal failure (PORF) following radical nephrectomy and nephroureterectomy. Methods: The American College of Surgeons National Surgical Quality Improvement Program (ACS-NSQIP) database years 2005–2014 were used for the derivation cohort. A stepwise multivariate logistic regression analysis was conducted, and the final model was validated with an independent cohort from the ACS-NSQIP database years 2015–2017. Results: In cohort of 14,519 patients, 296 (2.0%) developed PORF. The final 9-factor model included age, gender, diabetes, hypertension, BMI, preoperative creatinine, hematocrit, platelet count, and surgical approach. Model receiver-operator curve analysis provided a C-statistic of 0.79 (0.77, 0.82; p < 0.001), and overall calibration testing R2 was 0.99. Model performance in the validation cohort provided a C-statistic of 0.79 (0.76, 0.81; p < 0.001). Conclusion: PORF is a known risk factor for chronic kidney disease and cardiovascular morbidity, and is a common occurrence after unilateral kidney removal. The authors propose a robust and validated risk prediction model to aid in identification of high-risk patients and optimization of perioperative care.

Gallbladder cancer (GBC) is the most common malignancy of the biliary tract. The median survival of the disease is around 6 months. In this study, we explore clinical trials related to non-resectable GBC, determine the shortcomings leading to the lack of development of new treatment, and shed light on possible areas of improvement. On April 20, 2019 the authors completed a search on ClinicalTrials.gov for all therapeutic and interventional clinical trials involving non-resectable GBC, without any limits on date or location. Trial characteristics such as duration, phase, sample size, and whether a publication was produced were collected and analyzed. Sixty-two trials met our selection criteria. The average duration of trials was 5 years. Trials were conducted in 8 different countries: most of them in North America (USA and Canada). About 88% of trials were in early phases (I, I/II, and II) and 85% of trials were completed. Only 4 relevant publications were produced from all the trials in our study. Gemcitabine was the most common drug used. Use of gemcitabine alone or in combination with either capecitabine or cisplatin showed significant increase mean progression-free survival. This study revealed a low number of trials, lack of geographic diversity, and scarcity of publications concerning non-resectable GBC. Adequate management of is of great importance to reach effective therapies for this disease.

Background: Refugees are susceptible to various types of injury mechanisms associated with their dire living conditions and settlements. This study aims to compare and characterize the emergency department admissions due to physical trauma and injuries among local residents and refugees in greater Beirut. Methods: This epidemiological study analyzes injury incidence and characteristics of patients presenting to Emergency Departments of 5 sentinel hospitals between 2017 and 2019. Using the WHO Injury Surveillance Guidelines and Pan-Asia Trauma Outcomes Study form, an injury data surveillance form was designed and used in hospital settings to collect data on injuries. Chi-square test analysis was performed to compare differences in injury characteristics between local residents and refugees. Regression models were constructed to assess the effect of being a refugee on the characteristics of injuries and outcomes of interest. Results: A total of 4847 injuries (3933 local residents and 914 refugees)were reported. 87.4% of the total injuries among refugees were sustained by the younger age groups 0-45 years compared to 68.8% among local residents. The most prevalent injury mechanism was fall (39.4%) for locals and road traffic injury (31.5%) for refugees. The most injured body part was extremities for both populations (78.2% and 80.1%). Injuries mostly occurred at home or its vicinity (garden or inside the camp) for both populations (29.3% and 23.1%). Refugees sustained a higher proportion of injuries at work (6%) compared to locals (1.3%). On multivariate analysis, refugee status was associated with higher odds of having an injury due to a stab/gunshot (odds ratio (OR) = 3.392, 95% confidence interval (CI) = 2.605-4.416), having a concussion injury (OR = 1.718, 95% CI = 1.151-2.565), and being injured at work (OR = 4.147, 95% CI = 2.74-6.278). Refugee status was associated with increased odds of leaving the hospital with injury-related disability (OR = 2.271, 95% CI = 1.891-2.728)] Conclusions: Injury remains a major public health problem among resident and refugee communities in Beirut, Lebanon. Refugees face several injury-related vulnerabilities, which adversely affect their treatment outcomes and long-term disabilities. The high prevalence of occupational and violence-related injuries among refugees necessitates the introduction of targeted occupational safety and financial security interventions, aiming at reducing injuries while enhancing social justice among residents.

INTRODUCTION AND OBJECTIVE:Partial Nephrectomy (PN) is a procedure which aims to preserve renal functionality and minimize morbidity in patients with localized kidney tumors. However, it is associa...

BACKGROUND: The novel coronavirus disease 2019 (COVID-19) has impacted many countries across all inhabited continents, and is now considered a global pandemic, due to its high rate of infectivity. Research related to this disease is pivotal for assessing pathogenic characteristics and formulating therapeutic strategies. The aim of this paper is to explore the activity and trends of COVID-19 research since its outbreak in December 2019. METHODS: We explored the PubMed database and the World Health Organization (WHO) database for publications pertaining to COVID-19 since December 2019 up until March 18, 2020. Only relevant observational and interventional studies were included in our study. Data on COVID-19 incidence were extracted from the WHO situation reports. Research output was assessed with respect to gross domestic product (GDP) and population of each country. RESULTS: Only 564 publications met our inclusion criteria. These articles came from 39 different countries, constituting 24% of all affected countries. China produced the greatest number of publications with 377 publications (67%). With respect to continental research activity, Asian countries had the highest research activity with 434 original publications (77%). In terms of publications per million persons (PPMPs), Singapore had the highest number of publications with 1.069 PPMPs. In terms of publications per billion-dollar GDP, Mauritius ranked first with 0.075. CONCLUSION: COVID-19 is a major disease that has impacted international public health on a global level. Observational studies and therapeutic trials pertaining to COVID-19 are essential for assessing pathogenic characteristics and developing novel treatment options.

Background and Objective There is a pressing need for evidence-based interventions to address the devastating clinical and public health effects of the coronavirus disease 2019 (COVID-19) pandemic. The number of registered trials related to COVID-19 is increasing by the day. The objective of this study was to describe the characteristics of the currently registered interventional clinical trials related to COVID-19. Methods We searched the World Health Organization's International Clinical Trials Registry Platform on May 15th, 2020. We included any entry that is related to COVID-19. We abstracted and then descriptively analyzed the following characteristics of the registered trials: study design, status, phase, primary endpoints, experimental interventions, and geographic location among other qualifiers. Results We identified 1,308 eligible registered trials. Most trials were registered with ClinicalTrials.gov (n = 703; 53.7%) and the Chinese Clinical Trial Registry (n = 291; 22.2%). The number of participants to be enrolled across these trials was 734,657, with a median of 110 participants per trial. The most commonly studied intervention category was pharmacologic (n = 763; 58.3%), with antiparasitic medications being the most common subcategory. Although over half of the trials were already recruiting, we identified published peer-reviewed results for only 8 of those trials. Conclusion There is a relatively large number of registered trials but with very few results published so far. Although our findings suggest an appropriate initial response by the research community, the real challenge will be to get these trials completed, published, and translated into practice and policy.