Volume Assessment

Ultrasonographic evaluation of the inferior vena cava (IVC) is widely used in emergency and critical care settings for noninvasive assessment of intravascular volume status. The subcostal (SC) window is the standard approach; however, it is frequently limited by obesity, bowel distension, or postoperative anatomical changes. In such cases, the right coronal (RC) and anterior transhepatic (aTH) windows have been proposed as alternatives.

Pulmonary hypertension (PH) is a frequent and clinically significant complication in patients with end-stage kidney disease (ESKD) undergoing maintenance hemodialysis (HD). However, PH assessment in this population is often confounded by volume overload, leading to potential overestimation and misclassification. This prospective, multicenter observational study aims to evaluate the prevalence, phenotype, and predictors of PH in HD patients under standardized euvolemic conditions. A structured pretrial phase including volume assessment and correction will be performed prior to echocardiographic evaluation, which will be conducted after confirmation of euvolemia, post-hemodialysis or on the following day. In participants with echocardiographic findings suggestive of PH, right heart catheterization may be performed when clinically indicated and after obtaining specific informed consent. The study integrates clinical, biological, dialysis-related, and echocardiographic data to provide a comprehensive characterization of PH in a well-defined ESKD population.

To Evaluate accuracy of Internal Jugular Vein Point-of-Care ultrasound for volume status evaluation in chronic haemodialysis

The aim of this study is to assess the precision of the complete crown technique employed for the superimposition of 3D models, specifically in the quantitative volumetric evaluation of gingival tissues. This technique was initially introduced in an in-vitro study by Dritsas et al. (2023) as a means to achieve an accurate, reproducible, and simple method for quantification of gingival recession. This study will involve the analysis of digital models in. ply format acquired through intraoral scanning of patients scheduled for esthetic crown lengthening, with predefined inclusion and exclusion