Publications by authors named "F N G K Fontao"
Background: The rapid advancement of minimally invasive surgical techniques has made laparoscopy a preferred alternative because it reduces postoperative complications. However, inflating the peritoneum with CO2 causes a cranial shift of the diaphragm decreasing lung volume and impairing gas exchange. Additionally, CO2 absorption increases blood CO2 levels, further complicating mechanical ventilation when the lung function is already compromised.
View Article and Find Full Text PDFBackground: Patients with brain damage often require mechanical ventilation. Although lung-protective ventilation is recommended, the application of increased positive end-expiratory pressure (PEEP) has been associated with elevated intracranial pressure (ICP) due to altered cerebral venous return. This study investigates the effects of flow-controlled ventilation (FCV) using negative end-expiratory pressures (NEEP), on cerebral hemodynamics in a swine model of intracranial hypertension.
View Article and Find Full Text PDFArticle Synopsis
- Intestinal ischemia-reperfusion injury can lead to both large-scale (macrocirculatory) and small-scale (microcirculatory) blood flow failures, and the study aimed to test if combining a vasoconstrictor (norepinephrine) with a vasodilator (ilomedin) improves blood pressure and circulation after injury.
- The research was conducted on 21 pigs, with three groups receiving different treatments before and after a 2-hour induced small bowel ischemia followed by reperfusion, measuring various circulatory parameters and biomarkers.
- Results showed no significant differences in mean arterial pressure or cardiac index between the groups, but the combination therapy group had notably better microcirculation performance immediately after and two
Evaluation of the Peri-Implant Tissues of Patients with Severe Bone Atrophy Treated with a New Short and Extra-Short Implant System-A Pilot Study.
J Funct Biomater
September 2024
This study aimed to assess clinical and radiographic outcomes, including implant survival, marginal bone loss, and patient satisfaction, in individuals with severe bone atrophy treated using a newly developed system of short and extra-short implants. A total of 44 implants (37 short and 7 extra-short) were placed with immediate loading in 11 patients. The patients were followed up at between 6 and 24 months.
View Article and Find Full Text PDFFull-arch prostheses supported by implants with different macrostructures: A multicenter randomized controlled trial.
Clin Implant Dent Relat Res
February 2025
Objectives: This study evaluates the clinical performance of implants with hydrophilic surface and two different macrostructures: cylindrical with perforating triangular threads (CT) and cylindrical-tapered with the association of square and condensing and perforating triangular threads (TST).
Materials And Methods: This was a multicenter split-mouth, simple-blinded, randomized, and controlled trial. Thirty patients with edentulous mandible received two CT and two TST implants.