Active clinical trials for "Dilatation, Pathologic"

The aim of this project is to determine the effect of virtual reality application in cervical dilatation and effacement teaching on students' satisfaction, confidence and anxiety levels.

Phase 1, single-center, open-label clinical study to assess the safety and efficacy of topical nitroglycerin on dilation of the radial artery. Subjects will receive nitroglycerin ointment prior to scheduled PCI and radial artery measurements will be performed to determine mean increase in radial artery diameter at several time points. There will be 20 subjects enrolled in this study.

In this study, patients with dysfunction of the eustachian tube will be included. They will be randomized to one of two treatment groups. balloon dilation of the eustachian tube or nasal saline Patients will undergo follow-up for one year and will be able to crossover to the treatment arm after three months

The objectives of this study are to evaluate and compare the safety and efficacy of three treatment regimens for corneal collagen cross-linking performed with VibeX (riboflavin ophthalmic solution) and the KXL System in impeding the progression of, and/or reducing maximum corneal curvature.

The purpose of this research study is to test the safety, tolerability, and effectiveness of corneal collagen cross-linking (CXL) when used to treat ectasia.

The primary objective of this study is to evaluate the safety and effectiveness of a direct stenting technique compared to conventional stenting with pre-dilatation strategy using the CoStar Paclitaxel-eluting coronary stent system for the treatment of a single de novo lesion in a native coronary artery ≤ 25 mm long in a native coronary artery 2.5-3.5 mm diameter.

Gallstone is a worldwide clinical problem which affecting most of the populations with incidence of 15 to 20% in west and 10% in Asians. About 5 to 15% of patient with gallstone will go on to develop bile duct calculi. There are several endoscopic strategies developed for treatment of common bile duct stone such as endoscopic sphincterotomy (EST), endoscopic papillary large balloon dilatation (EPLBD) and combination of EST plus EPLBD. Our aim of this study is to compare efficacy, and safety of EST alone group versus EST plus EPLBD group in removing CBD stone.

The objectives of this study are: To evaluate the safety of Nyxol in pediatric subjects To evaluate the efficacy of Nyxol to expedite the reversal of pharmacologically induced mydriasis in pediatric subjects The Sponsor intends to use this study to evaluate Nyxol in pediatric subjects aged 3 to 11 for the indication "the treatment of pharmacologically induced mydriasis produced by adrenergic (phenylephrine) or parasympatholytic (tropicamide) agents, or a combination thereof."

Like in the full immersion, studied in the context of diving, immersion in water causes a cascade of events with hemodynamic and hormonal consequences. First, immersion leads to a relative hypervolemia by venous redistribution and then 40-60 minutes later, hypovolemia by stimulating diuresis. Dilatation bath is helpful in relieving moderate pain the first stage of obstetrical labor. However, when the labor progresses, the dilatation bath is no longer sufficient and epidural analgesia remains the only effective method to control pain. Used before the realization of an epidural analgesia, dilatation bath could affect blood volume and thus worsen the hemodynamic consequences of the sympathetic block that is linked to the installation of sensory block of the epidural analgesia in the parturient (severe prolonged maternal hypotension that can cause a decrease of the placental perfusion and fetal distress). Before beginning a study in pregnant women, it seems essential to study the hemodynamic consequences of the dilatation bath in a comparable population of volunteers healthy young women and out of the obstetrical context.

This study aims to verify whether the moisture of 400 µg of misoprostol pre uterine evacuation increases the dilatation of uterine cervix compared to dry misoprostol