Active clinical trials for "Polyps"

This clinical trial is being conducted to compare the efficacy and safety of two standard methods of polypectomy，Conventional Endoscopic Mucosal Resection（EMR）and Underwater Endoscopic Mucosal Resection（UEMR），for small colorectal polyps.

This study will evaluate the effectiveness and safety of MFNS in improving nasal congestion/obstruction and in reducing bilateral nasal polyps.

The purpose of this study is to find out if guided fluid administration with the esophageal monitor is superior to standard fluid administration and whether use of the hetastarch or lactated ringers offers different benefits with respect to length of stay in the hospital after hand-assisted colorectal surgery.

The aim of these studies is to study the natural history, the symptoms of, as well as the effect of hysteroscopic resection of endometrial polyps. Furthermore, another aim is to study new diagnostic techniques to differentiate between malignant and benign endometrial polyps.

Complete polypectomy is one of the major factors for effectiveness of colonoscopy to prevent colon cancer. Given the prevalence of the 4-6 mm polyp, and the concern about interval cancers at polypectomy sites, there is a clear and significant need to determine which technique(s) are most appropriate for clinical practice. This study was to compare the three commonly used polypectomy techniques in terms of efficacy and efficiency.

Endoscopic sinus surgery (ESS) has become the standard of care for patients suffering of chronic rhinosinusitis with nasal polyposis (CRSwP) who have failed medical therapy. The goal of surgery is now to widely marsupialize the sinus cavities in order to optimize topical steroid irrigation treatment in the postoperative period. With that being said, the true extent of surgery needed for optimal patient outcome has yet to be elucidated. More specifically, in the last 30 years, people have argued about the best way to manage the middle turbinate. Some state that it should be preserved at all times to protect the sinus cavities from inhaled irritants and allergens and keep this surgical landmark untouched for future surgeries. On the other hand, there are defenders of routine resection of this turbinate, whether it is affected by polypoid changes or not. Many studies have looked at the potential risks of resecting the middle turbinates such as iatrogenic frontal sinusitis, anosmia, or atrophic rhinitis but the more recent literature does not show such significant associations. A recent topic of debate is whether partial removal of the anterior and inferior portion of the middle turbinate affects nasal polyps recurrence or improves long-term outcomes by further facilitation of post-operative topical therapies. Some retrospective data has shown that its resection could prolong the time before the need for revision surgery and improve both endoscopic and olfaction scores. A few prospective studies have also been published but unfortunately none of these were randomized, thus introducing a significant selection bias. Thus, there is a need for a formal randomized, controlled trial to elucidate this question.

While oral steroids have been shown to be effective in the management of patients with chronic rhinosinusitis with polyps, its role in treating chronic rhinosinusitis without polyps (CRSsNP) is ambiguous. Despite a lack of strong clinical evidence to suggest a benefit in this disease state, steroids are often prescribed as a component of post-operative care after sinus surgery for patients without polyps. Oral steroids carry with them significant adverse effects, and should be prescribed thoughtfully. The aims of this study are to determine if oral steroids in the peri-operative period improves patient outcomes in CRS without polyps.

Evaluation of the effect of H. pylori eradication on regression of H. pylori-related gastric polyp (Ranomized controlled trial) Study design: open labeled RCT Study group H. pylori eradication group (N=17), non-eradication group (N=15) Treatment plan Baseline EGD : 0.3-1cm sized polyp - bx & CLO test (antrum & body) ==> if H. pylori positive and eligible patients, randomization Triple therapy UBT (4week after eradication) Follow-up EGD: gross finding, CLO test Evaluation of polyp regression disappear regression over 50% (size, number) no change or increase (size, number)

Current semi-occluded vocal tract therapies limit the type of vocalizations that can be produced to single vowels, which does not promote learning of the healthy voice behavior in connected speech or generalization to conversation. However, recent preliminary results using a semi-occluded mask indicate that the use of certain mask port diameters may allow for natural speech production while increasing supraglottal pressure and impedance, and thereby result in elicitation of voice with increased efficiency. In addition, the use of a semi-occluded mask provides the possibility for a better transition from phonating single phonemes in therapy to training the target therapy techniques in connected speech.

Colorectal cancer is a major cause of morbidity and mortality in Western countries. Scientific studies have shown that endoscopic polypectomy is efficacious in preventing CRC incidence and mortality. Endoscopic polypectomy carries a risk of major complications, such as bleeding or bowel perforation, so that a careful balance between efficacy and safety appears to be clinically relevant. Most of the polypectomies are performed for diminutive (<5 mm) or small (6-9 mm) lesions, which represent over 90% of all the polyps. To minimize the risk of complications when removing <10 mm polyps, cold-polypectomy techniques - i.e. without electric current - by means of biopsy forceps or snare, have been proposed. Although the risk of perforation is virtually excluded by cold-polypectomy, the lack of electrocautery may result in an increased risk of bleeding. The safety of cold-snare polypectomy has however been recently shown in controlled trials. Regarding the efficacy of cold-polypectomy for subcentimetric polyps, very few studies have assessed the post-polypectomy completeness of the removal of polyp tissue (i.e. residual disease), and no studies have compared it to conventional polypectomy. The investigators perform this study to assess both the efficacy and safety of a novel snare (Exacto™) for polyp removal.