Active clinical trials for "Constriction, Pathologic"

Aortic stenosis is a common valvular heart disease, affecting mainly people over age 60. It is characterized by years to decades of slow progression followed by rapid clinical deterioration and a high death rate once symptoms develop. The onset of symptoms confers a poor prognosis: patients die within an average of five years after the onset of angina, three years after the onset of syncope, and two years after the onset of heart failure symptoms. The overall mortality rate is 75% at three years without surgery. Drug therapy for it remains ineffective, and aortic valve replacement is the only recommended long-term treatment.

This study evaluates the effects of treatment with a vaginal dilator to reduce vaginal stenosis in women receiving pelvic radiation therapy for pelvic malignancies.

The objective of this study is to establish a relationship between the degree of radiologically established anatomical stenosis and the severity of self-assessed outcome measures in patients that have undergone and MRI.

To create a registry of all Oregon children undergoing surgical repair of congenital heart disease since 1958 in order to determine mortality, morbidity, and disability after surgery and to assess the safety of pregnancy in women with corrected congenital heart disease and the risk of prematurity and occurrence of congenital heart defects in offspring.

Prospective, multicenter registry in patients undergoing commercially available balloon expandable valve implantation. The registry will consist of 3 phases: Prospective determination of baseline Status Quo (3 months): Documentation of treatment pathways and endpoints of "routine" patients without educational program Dedicated reflection and training (1 day): One training session after the observational period to reflect on treatment pathways, exchange between valve coordinators involved, and develop improvements. Implementation of tailored changes (2 months): Implementation of the changes developed in the training. Determination of the effect (3 months): Coordinator measures optimization changes and determines effects.

This is a multi-center, post-market, retrospective study design to collect safety and performance data for patients implanted with the Streamline OCT System.

The purpose of this study is to determine whether a home-based cycling program for patients with lumbar spinal stenosis is a feasible and acceptable

The FinnValve investigators planned a nationwide registry to investigate the early and late outcome of transcatheter aortic valve implantation (TAVI) compared to surgical aortic valve replacement (SAVR) in patients with aortic valve stenosis performed from 2008 to 2017 at five Finnish University Hospitals. Data will be collected in a dedicated electronic case report form.

The hemorrhoidal disease affects approximately 4.4%-36% of the general population, and it has been estimated that >50% of the population aged >50 years experiences hemorrhoidal problems . Traditional hemorrhoidectomy, including Milligan-Morgan, Ferguson, and Whitehead procedures , are known to cause significant postoperative pain and discomfort and result in a poor quality of life after operation. Since the first introduction of the novel procedure hemorrhoidopexy by Longo in 1998, it has been considered as a safe procedure causing less postoperative pain and resulting in earlier recovery; furthermore, the patients are able to resume their normal daily life and work. The PPH stapler (Ethicon Endo-Surgery, Inc. Cincinnati, OH, USA) was also first introduced in 1998 as a device to perform this procedure. Subsequently, a new device, the DST stapler (Covidien, Mansfield, MA, USA), was introduced in 2008 with some structural differences, including a detachable anvil, three anchor points over different levels, a larger case, and different agraffe sizes. However, the majority of current studies have been focusing on the use of PPH stapler for hemorrhoidopexy, and comparison with the DST stapler has been rarely discussed. One randomized controlled trial that compared between the PPH stapler and the DST stapler reported that the DST stapler demonstrated a better hemostatic ability and allowed the resection of a larger area of mucosal prolapse; however, that trial focused only on bleeding among the postoperative complications. Currently, only a limited number of studies have compared these two devices in terms of pain, complications, and anorectal stricture incidence rate. The present investigation is a matched cohort-control study aimed to compare the postoperative short-term outcomes among patients with grade III and IV hemorrhoids who were treated with either the PPH or the DST stapler. The specimen surface area and the relationships with complications were also analyzed.

Prospective cohort study to test the hypothesis that patients identified with severe aortic stenosis are under-diagnosed and under-treated. Such patients shall be identified by auscultation or target echocardiography during flu vaccination. The hypothesis is that this will increase detection of aortic stenosis in the community.