View clinical trials related to Constriction, Pathologic.
Filter by:It is designed to monitor the efficacy of nasal cannula or hıgh-flow nasal oxygen in geriatric patients for endoscopıc retrograde cholangıopancreatography procedures. The aim of the study is to evaluate the efficacy and safety of oxygen support obtained with low-flow nasal cannula and hıgh-flow nasal oxygen during endoscopıc retrograde cholangıopancreatography in the patient group at risk for adverse respiratory events. We hypothesized that high-flow nasal oxygen administration can prevent adverse respiratory events such as deep sedation and patient position that may endanger the airway safety of patients, and reduce the problems in cardiac and hemodynamic parameters that may develop.
BSUS patients were prospectively enrolled in this study, and non-randomly treated with "balloon dilation +CMUS" and "balloon dilation + tandem DJ stent". Perioperative data of the patients were recorded to compare their efficacy and complications, and the ureteral stent symptom questionnaire was used to compare their impact on patients' quality of life. CMUS and tandem DJ stents were removed after ≥3 months of indwelling. After the removal of stents, the patients' serum creatinine and renal pelvis width were followed up to compare their curative effect on BSUS.
This single-centre cross-sectional study aims to ascertain the impact of dyslipidemia on long-term graft patency after coronary artery bypass grafting (CABG).
The aim of the study to evaluate the outcome of diamond flap versus V-Y flap for treatment of severe post hemorroidectomy anal stenosis .
The purpose of this phase 2 study is to examine if inhibiting IL-17A activation using the biologic drug Taltz, in idiopathic subglottic stenosis patients will decrease scar fibroblast proliferation therefore reducing or eliminating the need for invasive or repeat surgeries.
Intracranial artery stenosis (ICAS) is a leading cause of ischemic stroke worldwide, contributing to the global burden of stroke, particularly in the Asian population. However, there is no non-invasive, easy to popularize and economic for intracranial artery stenosis in mass population screening. This study aims to evaluate the predictive value of retinal vascular signs for intracranial artery stenosis (ICAS) and explore a new screening method.
Conventional open surgery has been shown to be an effective procedure for LCS decompression. Minimally invasive surgery (MIS) through tubular retractors is a recently introduced alternative procedure for decompression of LCS. The current study aims at evaluating the efficacy of minimally invasive surgery as a decompressive procedure in comparison to conventional open surgery for the treatment of patients with LCS.
Although the prevalence of rheumatic fever is decreasing in developed countries, it still affects numerous areas in the non- industrialized world. Untreated mitral stenosis (MS) contributes significantly to global morbidity and mortality. Echocardiography is the main diagnostic imaging modality for evaluation of mitral valve (MV) obstruction and assessment of severity and hemodynamic consequences of MS as well as valve morphology. According to current guidelines and recommendations for clinical practice, the severity of MS should not be defined by a single value but assessed by valve areas, mean Doppler gradients, and pulmonary pressures. Transthoracic echocardiography is usually sufficient to grade MS severity and to define the morphology of the valve. Transesophageal echocardiography is used when the valve cannot be adequately assessed with transthoracic echocardiography and to exclude intracardiac thrombi before a percutaneous or surgical intervention. Three-dimensional transthoracic and transesophageal echocardiographic assessment provide more detailed physiological and morphological information. Current definitive treatment for severe MS involves percutaneous balloon mitral valvuloplasty (PMBV) or surgery. The effectiveness of PMBV is related to the etiology of MS, and certain anatomic characteristics tend to predict a more successful outcome for PMBV, whereas other MV structural findings might suggest balloon valvuloplasty to be less likely successful or even contraindicated. Does 3D echo can add more useful information over 2 D echo that could change treatment decision?
This is a pilot study to assess the utility of the automatic stenosis index quantification using 3D Slicer software (Computer-based Quantification). We will recruit three physicians to perform a similar analysis using video images of the same bronchoscopes images (Human-based Quantification). This study relates to the latter data collection.
Degenerative cervical kyphosis with stenosis (DCKS) is a common cervical spine degenerative disease, causing pain, numbness, and weakness of limbs, which seriously affect the quality of life of the patient. Surgery is an effective way to treat this condition, however, the best surgical procedure is still controversial. Anterior spinal canal reconstruction and fusion surgery (ACRF) is a new surgical procedure that previously proposed by our team, it combines the advantages of both the conventional anterior and posterior approach. The purpose of this study is to evaluate the safety and effectiveness of ACRF surgery for treating DCKS. A multicenter prospective randomized controlled trial was designed. Eligible patients will be randomly divided into three groups, including the ACRF group, the conventional anterior surgery group, and the conventional posterior surgery group. Demographic data, surgery Information, and follow-up results will be collected and compared between groups.