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Filter by:This trial studies how well cycling works in preventing colorectal cancer in participants with Lynch syndrome. Exercise such as cycling may reduce colorectal cancer risk in participants with Lynch syndrome.
Lumbar spinal stenosis (LSS) is characterized by low back and leg pain, walking disturbances and sometimes instability, impaired balance and numbness of the lower limbs. This condition is caused by degenerative changes in the lumbar spine including bulging discs, osteophytes from the arthritic facet joints and thickened ligamentum flavum which together cause narrowing of the spinal canal and thus affect the lumbar nerve roots. This diagnosis is attracting more and more interest due to the aging population with increasing demands for physical activity. LSS is the most common indication for spinal surgery. The surgical treatment involves relieving the pressure from the nerve structures in the stenotic segments through a posterior approach. In several studies, surgery has been shown to have better results than the conservative treatment. However, methodological difficulties and a large proportion of cross-over in these studies indicate that there is still uncertainty about whether surgery is generally a better option. It has been speculated whether the compression of the nerve roots causes in some patients permanent nerve damage with muscle denervation, while in other cases a reinnervation and recovery of the function may occur. Results from neurography and EMG studies have been shown these modalities to have a possible predictive value for the natural process of LSS. If a neurophysiological examination could be able to predict which patients are able to benefit from surgery, many patients could avoid surgery and the risks involved in it. The aim of this study is primarily to evaluate whether surgery with decompression leads to superior results than the non-surgical treatment with structured physical therapy. The main secondary aim is to investigate by means of Neurography and EMG, whether the degree of neurological affection caused by nerve compression affects the outcome of surgery for LSS.
The study design is a prospective randomized control trial. Four surgeons will enroll up to 30 patients in the study. Patients will be asked to participate if they plan to undergo bilateral carpal tunnel release with one of the study surgeons, are greater than 18 years of age but younger than 89, have had no prior carpal tunnel surgery, and agree to undergo carpal tunnel surgery under two different types of anesthesia. If patients meet these criteria and agree to participate in the study, they will be consenting to have one hand operated on with local only anesthesia and the other hand with local anesthesia with sedation. The patient will randomly be assigned to have one of the two anesthetic methods for the first carpal tunnel release, followed by the other anesthetic for the second carpal tunnel release. The two surgeries will be completed by the same surgeon and may be performed at any time interval apart; however, the investigators will recommend that patients get the second surgery within 4 weeks of the first. The particular surgical technique of carpal tunnel release will be performed according to the individual surgeon's preference, but the same technique will be used on both wrists. The surgeon will discuss the proposed advantages and disadvantages of each anesthetic method prior to enrolling the patient (advantages and disadvantages discussed above). The treating surgeons will continue to utilize their standard surgical technique on each side, regardless of a patient's participation in the study.
Kingston General Hospital is committed to upgrading the surgical treatment platform for benign prostate surgery. Vaporization Surgery, either laser-vaporization or electo-vaporization is becoming a "standard" of therapy for benign prostatic hyperplasia rather than the traditional transurethral resection of the prostate. However many Canadian hospitals have been slow to adopt an updated program because of evolving competing technology systems as well as unknown cost, efficacy, complication and patient/surgeon satisfaction considerations. KGH has been recognized as a centre of excellence in evaluating medical therapy for BPH and studies from the institution have impacted BPH care nationally and abroad. Laser and other state of the art BPH surgical technologies are being purchased by Ontario hospitals, including the local area, with no prospective assessment process. Kingston is uniquely advantaged to undertake a randomized comparative study of two of the most promising technology platforms because the investigators have the experience and expertise to perform the study in a hospital and surgeon naive institution. The investigators propose to directly compare two vaporization techniques, laser and plasma vaporization systems. The investigators will be able to answer the most important questions in technology introduction and technique into our hospital system - cost, efficacy, safety and satisfaction. The results will inform KGH (and other similar Ontario centres) on the advantage or not (financial and patient care related) of investing in a BPH state of the art vaporization technology.
NAXIVA is a study of axitinib in patients with metastatic and non-metastatic renal cell carcinoma with venous invasion. Patients will be given axitinib (twice daily) for 8 weeks (at an escalated dose) and the response of the venous invasion will be assessed. Blood, urine and tumour tissue samples will be taken prior to and during therapy to evaluate biomarkers of treatment response. The primary objective is to assess the response of the thrombus to axitinib. Its thought that axitinib will reduce the extent of the thrombus in the inferior vena cava will reduce the extent of surgical intervention.
Study Design: Lixiana Acute Stroke Evaluation Registry (LASER) is a randomized controlled trial with an associated registry. Patients with previously known or newly diagnosed atrial fibrillation (AF) and acute ischemic stroke within five days will be randomized 2:1 to early (≤ 5 days) or delayed (6-14 days) edoxaban initiation. Ischemic stroke will be defined as evidence of acute focal cerebral infarction confirmed on CT/MRI and/or focal hypoperfusion/vessel occlusion on multimodal CT, or by sudden focal and objective neurological deficits (i.e NIHSS ≥ 1) of presumed ischemic origin persisting > 24 hours. Study Aim and Objectives: The primary aim of LASER is to demonstrate the safety of edoxaban initiation within five days of cardioembolic stroke. Secondary aim is to determine predictors of hemorrhagic transformation (HT) after cardioembolic stroke. Investigators will systematically assess prospectively collected Computed Tomography (CT) scan images for evidence of HT and re-infarction.
Postmastectomy pain syndrome (PMPS) is a neuropathic pain that can follow surgical treatment for breast cancer, The antineuropathic medications (antidepressants and anticonvulsants) are disappointing and have low success rate. Continues Radiofrequency lesioning has been reported as treatment for several chronic pain conditions.The concept that the clinical effect of RF was caused by formation of heat had not been challenged. Thermocoagulation of nerve fibers would interfere with the conduction of nociceptive stimuli and pain would be relived. Thoracic sympathectomy has been done for many painful conditions that includes complex regional pain syndrome .It offers the benefit over stellate ganglion block as it blocks the Kuntz fibers that connect to the brachial plexus roots without passing through stellate ganglion.
This study examines the risks and benefits of antioxidants and normal versus high inspiratory oxygen fraction during anaesthesia.
Assessment of prognostic performances of CCU in CRA Recovery (CRAR) has already been explored but 1) Only in intra-hospital medicine, 2) in very variable timings. ACE Research focuses on the extra-hospital window and predictive value of Early CCU (within 12 minutes of rescucitation initiation) with ambitious endpoints : curable etiologies identification, early anticipation of ECMO procedures, early anticipation of organ donation process, and evaluation of intrinsic contribution criterion to resuscitation interruption. The primary objective of ACE study is to investigate the positive predictive value (PPV) of early ultrasound asystole on the absence of CRAR. The secondary objectives are multiple and innovative despite an observational design: impact on the morbi-mortality of the target population (frequency of curable etiologies, pre-therapeutic and therapeutic delays, morbidity...), delay of ECMO implementation of an ECMO (Extracorporeal Membrane Oxygenation), failure rate of organ donation due to overdelays, construction of a multifactorial score associated with CRAR.
The main objective of the study is to evaluate the size of the common bile duct (CBD) in a large cohort of patients with jaundice secondary to pancreatic head or distal bile duct malignancy undergoing diagnostic EUS for tissue acquisition or evaluation of resectability and to establish factors associated with a dilation of the CBD greater than 15mm.