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NCT ID: NCT05542030 Recruiting - Clinical trials for Colorectal Neoplasms

CAD EYE Detection of Remaining Lesions After EMR

Start date: September 12, 2022
Phase: N/A
Study type: Interventional

In the last decade, many innovative systems have been developed to support and improve the diagnosis accuracy during endoscopic studies. CAD-Eye™ (Fujifilm, Tokyo, Japan) is a computer-assisted diagnostic (CADx) system that uses artificial intelligence for the detection and characterization of polyps during colonoscopy. However, the accuracy of CAD-Eye™ in the recognition of remaining lesions after endoscopic mucosal resection (EMR) has not been broadly evaluated. Finally, based on the importance of complete resection of the colonic mucosal lesions, namely suspicious high-grade dysplasia or early invasive cancer, the investigators aimed to assess the accuracy of CAD-Eye™ in the detection of remaining lesions after the procedure.

NCT ID: NCT05474794 Recruiting - Leiomyoma Clinical Trials

Detective Flow Imaging Endoscopic Ultrasonography in Subepithelial Lesions

Start date: July 20, 2022
Phase: N/A
Study type: Interventional

Gastrointestinal stromal tumors (GIST) are the most common malignant subepithelial lesions (SELs) found in the gastrointestinal tract. The diagnosis and differentiation of these lesions from other subepithelial hypoechogenic tumors (i.e.as leiomyoma), is important as this may have an impact in the prognosis and treatment of either. Due to GIST's notable features (vascularity and deep location), endoscopic ultrasound (EUS) is the first-line diagnostic approach. Based on this, three models (color-doppler EUS, power-doppler EUS, and e-FLOW EUS), are useful for real-time vascularity detection; however, these modalities are not helpful for fine and slow flow vessel detection. For overcoming this limitation, contrast-enhanced EUS (CE-EUS) is proposed as a first-line approach. Nevertheless, the use of contrast may be harmful, thus limited to some patients. To avoid contrast-related adverse events, a novel diagnostic method known as detective flow imaging endoscopic ultrasonography (DFI-EUS) has emerged. This technique detects fine vessels and slow flow without contrast. Despite the advantages of the latter, few studies have compared it with other diagnostic approaches in the evaluation and differentiation of SELs. Hence, the investigators aim to evaluate the utility of DFI-EUS in the diagnosis of SELs (GIST and leiomyoma) by comparing it with CE-EUS.

NCT ID: NCT05465746 Recruiting - Clinical trials for Arterial Hypertension

Cumulative Blood Pressure Load and Left Ventricular Mass

Start date: July 1, 2022
Phase:
Study type: Observational

Delay in the diagnosis of systemic arterial hypertension (SAH) causes morbid hypertensive status with target organ damage (TOD). Screening and surveillance of SAH used to be performed through self-measurement of blood pressure (SMBP) or routinary in clinic blood pressure measurement (CBPM). It is essential to determine the correlation between the cumulative blood pressure load through ABPM and the left ventricular mass identified by three-dimensional transthoracic ultrasound (3D-TTE). We postulate a directly proportional and statistically significant association between cumulative blood pressure load and left ventricular mass (LVM).

NCT ID: NCT05453292 Recruiting - Clinical trials for Gastrointestinal Stromal Tumor (GIST)

Endoscopic Ultrasound Radiofrequency Ablation for GISTs

Start date: January 15, 2024
Phase: N/A
Study type: Interventional

Nowadays, for the selection of the treatment for gastrointestinal stromal tumors (GISTs), tumor size, prognosis, resectability and stage should be considered. Due to mutations in KIT and platelet-derived growth factor alpha (PDGFRA) in 90% of patients with this mesenchymal tumor, many tyrosine kinase inhibitors are used. On the other hand, a resectable tumor is approached by surgery, endoscopic and ablation therapy. Radiofrequency ablation (RFA) approach has been studied in hepatic GISTs, and hepatic metastases, but its evaluation in esophageal, gastric, and intestinal GISTs is scarce. This study aims to determine the feasibility, safety and efficacy of endoscopic ultrasound (EUS) guided RFA using the 19 G RFA probe developed by Taewong Medical for the treatment of GISTs.

NCT ID: NCT05443139 Recruiting - Depression Clinical Trials

Online Multi-component Psychological Intervention for Depression, Anxiety and Well-being in 7 Countries

Start date: December 23, 2022
Phase: N/A
Study type: Interventional

This study evaluates the effectiveness of an online Multi-component psychological intervention, that is focused on providing self-support to the population of 5 Latin American countries and 2 European Countries. The objectives of the intervention are: 1) To reduce the symptoms of anxiety and depression in the adult population, 2) To increase the levels of subjective well-being.

NCT ID: NCT05343741 Recruiting - Clinical trials for Psychological Distress

Practice-Based Evidence in Psychotherapy in Ecuador

Start date: October 17, 2022
Phase:
Study type: Observational

This is a naturalistic study implementing a routine outcome monitoring system to track clients' change and outcomes at the Centro de Psicología Aplicada (CPA) of the Universidad de Las Américas in Quito, Ecuador

NCT ID: NCT05242224 Recruiting - Stunting Clinical Trials

Evolutionary Nutrition Pilot: Enhancing Fetal Growth and Brain Development

Start date: January 5, 2022
Phase: N/A
Study type: Interventional

Globally, 250 million children do not reach their developmental potential and 155 million are stunted, yet few population-based studies have examined the direct effects of nutrient deficiencies on early brain development. This study will examine an evolutionary nutrition intervention during pregnancy derived from diets consumed for 99.9% of hominin history when bodies and brains were healthier. A pilot clinical trial will be conducted in the central highlands of Ecuador to compare fetal and newborn outcomes among women randomized to: 1) evolutionary nutrition package (high quality diet plus nutrition messaging); and 2) control (standard-of care supplements). Ultrasound brain measures, nutrition and morbidity data, and blood metabolomics will be assessed at 21 weeks gestational age, 37 weeks gestational stage, and postpartum. This pilot study uniquely combines the expertise of multiple disciplines - public health nutrition, radiology, neuroscience, and metabolomics - to examine the potential for improved nutrition on early growth and brain development with vital public health implications.

NCT ID: NCT05151939 Recruiting - Clinical trials for Anatomic Abnormality

Endoscopic Ultrasound (EUS) Artificial Intelligence Model for Normal Mediastinal and Abdominal Strictures Assessment

Start date: October 1, 2021
Phase:
Study type: Observational

Therefore, a high number of procedures is necessary to achieve EUS competency, but interobserver agreement still varies widely. Artificial intelligence (AI) aided recognition of anatomical structures may improve the training process and inter-observer agreement. Robles-Medranda et al. developed an AI model that recognizes normal anatomical structures during linear and radial EUS evaluations. We pursue to design an external validation of our developed AI model, considering an endoscopist expert as the gold standard.

NCT ID: NCT04915833 Recruiting - Clinical trials for Colorectal Neoplasms

Computer-aided Detection During Screening Colonoscopy (Experts)

Start date: April 26, 2021
Phase: N/A
Study type: Interventional

Evaluation of the colonic mucosa with a high definition colonoscope (EPKi7010 video processor). The endoscopy images will be seen on a 27inch, flat-panel, high-definition LCD monitor (Radiance™ ultraSC-WU27-G1520 model) only by one expert endoscopist, randomly assigned. The number, location, and polyps' features (Paris classification) will be recorded by the operator. If a polyp is detected, the endoscopist will remove the polyp endoscopically with a cold snare. The same patient will be submitted to a second, the same session, computed aided real-time colonoscopy using the DISCOVERY, AI-assisted polyp detector. Colonoscopy will be performed by a same-level-of-expertise operator in comparison to the initial procedure. Any polyp or lesion detected with the AI system will be recorded and endoscopically removed and considered as a missed lesion from standard colonoscopy.

NCT ID: NCT04560062 Recruiting - Clinical trials for Diabetes Mellitus, Type 2

Contextualizing the Evidence for Action on Diabetes - Cohort

CEAD
Start date: October 13, 2020
Phase:
Study type: Observational

This protocol reflects the second part of a larger mixed-methods study aimed at exploring the process by which global recommendations can be translated into context-specific, evidence-informed action for diabetes prevention in low-resource settings. Firstly, a retrospective cohort study will assess the current level of implementation of comprehensive diabetes care over a 24-month period (2019-2020), by describing healthcare received and health outcomes of a representative sample of diabetes patients currently accessing care in the study region. Focus groups prompted by the findings of the retrospective study will be used to inspire local innovations which will be evaluated through a prospective follow-up of the cohort.