Clinical Research Directory

SurgWeek-2: Identifying the Global Burden of Post Operative Complications: an International Prospective Cohort Study Protocol

This study aims to assess and improve the global outcomes following surgery. Every year approximately 313 million operations are performed, with 50 million people experiencing a complication and unfortunately 3.5 million people will die following these operations. This study will assess how outcomes vary following surgery throughout the world and explore system access, quality and efficiency. The secondary aims of this study are to (1) assess the use of antibiotics and the impact of resistant organisms globally, (2) assess who dies after an operation and whether there are factors that were identified that could have prevented the death, (3) assess the assess and outcomes to minimally invasive and robotic surgery, (4) assess the outcomes of the Bellwether procedures (laparotomy, caesarean delivery, open fracture management) as these are conditions used to assess the functioning of a health system. The study will take place for six week in May-June 2026 and will aim to collect data from 100,000 patients across 1000 hospitals in 100 countries to give a global perspective on the above outcome measures. The data will be analysed by hospital income group to understand how resources impact on outcomes. By combining global data on clinical outcomes with information on hospital resources, this study hopes to provide valuable insights into how to improve surgical care across diverse settings, making recommendations that lead to better access to safe, timely and affordable care for surgical problems worldwide.

Long Peripheral Intravenous Catheter Insertion Site and Catheter-related Complications in Antimicrobial Therapy

This study applies long PIVCs to patients undergoing antimicrobial therapy, and compares the effects of different placement sites, aiming to provide a reference basis for patients undergoing antimicrobial treatment to select the optimal placement site, thus reducing complications, prolonging catheter retention time, and alleviating the patient's pain.

Hydrogen Peroxide and Ultraviolet Light for Disinfecting Surfaces in Intensive Care Units

Healthcare-associated infections (HAIs) remain a major problem in intensive care units (ICUs), driven by environmental contamination with multidrug-resistant organisms that persist despite routine manual cleaning. While hydrogen peroxide aerosolization and ultraviolet-C light devices have shown promise in reducing surface contamination, current evidence is inconsistent, mostly derived from single-center studies, and rarely linked to patient-centered outcomes. The investigators will conduct this cluster-randomized, crossover trial in 12 Brazilian ICUs. Each ICU will sequentially implement three strategies: (1) usual surface disinfection; (2) usual surface disinfection followed by hydrogen peroxide aerosolization at 7.9% concentration, applied through a dedicated device inside a protective tent during terminal cleaning of patient beds; and (3) usual surface disinfection followed by automated ultraviolet-C irradiation, also applied under the same tent to shield adjacent occupied beds. The primary outcome will be the antimicrobial utilization, measured as daily defined doses (DDD) of antimicrobials at the ICU level per 100 patient-days, with secondary outcomes including HAI incidence rate, environmental contamination with multidrug-resistant organisms, specific HAIs incidence rate (associated-ventilator pneumonia, central-line associated bloodstream infection, and catheter-associated urinary tract infection), and ICU length of stay costs.

Anticariogenic Effect of Moringa Oleifera Mouthwash Compared to Chlorhexidine Mouthwash

Moringa oleifera (MO) is an extraordinary nutritious vegetable tree with high medicinal value for its antibacterial properties. Formulation of various natural dental remedies from this plant and their testing for their effectiveness might yield promising antibacterial, antiplaque and anticariogenic agents with minimal side effects. Aim of the study: Part I: The aim of this in-vitro part of the study is to formulate a nontoxic mouthwash from MO leaves extract, having antimicrobial activity, to be used in part II of the study. Furthermore, stability and efficacy of the developed mouth wash will be evaluated. Part II: The aim of this randomized controlled trial is to evaluate the antibacterial, antiplaque and anticariogenic effect of MO mouthwash compared to chlorhexidine mouthwash.