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401 active trials for Surgery

Clinical Study on the Efficacy of Microvascular Decompression in the Treatment of Neurogenic Hypertension

Hypertension has always been a threat to human health, so the prevention and treatment is of great significance. At present, the treatment of primary hypertension is mainly drug treatment, but many patients can not control their blood pressure in the normal range. Therefore, it is urgent to explore new and effective treatment methods. Microvascular compression type of neurogenic hypertension is mainly due to abnormal tortuous vascular pulsatile compression of blood pressure center - rostral ventrolateral medulla (RVLM), resulting in the release of sympathetic active substances, leading to hypertension. The purpose of this study is to explore the efficacy and safety of microvascular decompression for hypertension in patients of hemifacial spasm complicated with hypertension, and to explore the common characteristics of patients with effective decompression. The type of study design was prospective cohort study. According to certain inclusion and exclusion criteria, patients with RVLM compression were treated with RVLM decompression at the same time of facial nerve decompression. Patients who were followed up for 3 months were taken as control group, and the blood pressure of the two groups were measured after 3 months. The main outcome measure was 24-hour ambulatory systolic blood pressure change from baseline to 3 months.

Start: March 2021

GO SOAR1: Post-Operative Morbidity and Mortality Following Gynaecological Oncology Surgery

The Global Gynaecological Oncology Surgical Outcomes Collaborative (GO SOAR) will develop a network of gynaecological oncology surgeons, surgical departments and other interested parties that will have the long-term ability to collaborate on outcome studies. The aims of the Collaborative are to: Set the research agenda through research prioritisation in gynaecological oncology surgical outcomes. Gather high quality data via a centralised database accessible to all sites that perform gynaecological oncology surgery. Build sustainable international research by producing protocols/guidelines. Train the researchers and leaders of tomorrow by providing open access to all GO SOAR training materials. The Collaborative will lead to several studies. The first GO SOAR collaborative study (GO SOAR1) will evaluate international variation of post-operative morbidity and mortality following gynaecological oncology surgery between country groups defined by the human development index (HDI).

Start: January 2021

Oncological Surgery in Times of COVID-19: Effectiveness of Preoperative Screening for Sars-Cov-2

To evaluate the incidence of patients with a positive test for SARS-CoV-2, performed in the preoperative screening for patients treated at the institution

Start: May 2020

Lovenox 30 mg Twice Daily (BID) Versus 40 mg Once Daily (QD)

The risk of developing a blood clot occurs in up to 60% of all critical care patients. Many times enoxaparin (or Lovenox) is given to patients who are at a higher risk of developing clots in their legs or lungs. There are two standard doses of enoxaparin that are recommended by the drug companies. These two doses have never been directly compared in trauma, general, and vascular surgery patients. The purposes of this study are: to compare the development of blood clots in patients receiving 30mg twice daily of enoxaparin compared to patients receiving 40mg once daily of enoxaparin. to determine if there is higher risk of bleeding complications in patients receiving 30mg twice daily of enoxaparin compared to patients receiving 40mg once daily. Patients enrolled into the study will be randomized to receive enoxaparin, 30mg twice daily or enoxaparin, 40mg once daily. Patients will then be monitored for signs and symptoms of blood clots. At the time of discharge (or before, if medically indicated), an ultrasound test will be performed to look for blood clots in the patient's legs. The investigators will compare incidence of blood clots formed between the 2 groups of patients to determine if one dose of enoxaparin relates to a lower rate of blood clots in critically ill patients. The investigators will also compare the incidence of bleeding complications between the 2 groups.

Start: February 2014

NMES for Rehab After Surgery

A randomised pilot study assessing the acceptability and feasibility of utilising neuromuscular stimulation devices to enhance post-operative rehabilitation and recovery after general, vascular and urological surgery procedures.

Start: May 2021

Recurrence After Whipple's (RAW) Study: Investigating Recurrence Patterns After Pancreaticoduodenectomy for Pancreatic, Ampullary or Distal Bile Duct Cancer

Pancreatic head malignancies are aggressive cancers that are often inoperable when they are diagnosed. In the ~20% of patients who are diagnosed when the disease is still operable, surgery is the only treatment that can provide a chance of cure. Unfortunately, up to 75% of patients undergoing surgery will have the cancer come back (recur). One of the reasons for this is the challenge of removing the whole tumour with some surrounding non-cancerous tissue to ensure that every tumour cell has been removed. This is difficult because there are many structures very close to the pancreas (such as the blood vessels that supply the intestines) that cannot be removed. A recent review study of >1700 patients who had a Whipple's operation (the cancer operation that is performed to remove the head of pancreas) and found that whilst the majority of patients had cancer recurrence in distant sites (like the liver) that would not be affected by how the operation was performed, 12% of patients had the cancer recur just at the site of where the operation had been; this is known as 'local' recurrence. This suggests that a small amount of cancer was not removed at the time of surgery in these patients. Very few studies have looked at the relationship between the Computerised Tomography (CT) scan before surgery and the histology results (information about the tumour after it has been examined under the microscope) and whether this can predict exactly where the tumour recurs. If investigators can find factors that predict which patients get local only recurrence, investigators may be able to offer improved surgical techniques or other therapies during or immediately after the operation to these patients, hopefully leading to improved cure rates. This retrospective international study will look at these factors in patients who underwent a Whipple's operation for pancreatic cancer, bile duct cancer or ampullary cancer over a three year period between 2012 and 2015. Participating centres will provide data on pre-operative scans, complications around the time of surgery, any therapies (e.g. chemotherapy) that the patients had and if and where the cancer recurred. With this information, investigators hope to find ways to predict which patients will get local-only recurrence, so researchers can select them for future studies to see if additional treatments can improve the chance of cure from surgery for these patients.

Start: October 2020

Toripalimab Plus Surgery vs Surgery Alone for Resectable Recurrent Nasopharyngeal Carcinoma

Through multicenter, open-label, randomised clinical trials, we intend to demonstrate that PD-1 treatment added to salvage surgery could further decrease the rate of disease progression and improve the survival outcome of patients with resectable locally recurrent nasopharyngeal carcinoma compared with those treated with salvage surgery alone.

Start: March 2021

Use of an External Erectile Device in Transgender Man Following Phalloplasty

The purpose of this study is to test whether an external erectile prosthesis (The Elator™) is a feasible alternative to internal erectile prostheses for transgender men who have undergone a phalloplasty with glansplasty and wish to use their neophallus for sexual penetration. The Elator™ was initially developed for men experiencing erectile dysfunction after prostate cancer. The device consists of two silicone rings connected by a pair of plastic coated rigid metal rods. One ring goes at the base of the penis. The other ring is connected to the rods. This ring is placed behind the glans, and then the rods are connected to the base ring to stretch and provide rigidity to the phallus.

Start: July 2019

Comparison of Normothermia Maintenance Between Resistive Blanket and Forced Air Warming Systems in Renal Transplant Surgery

The purpose of the study is to compare the effectiveness of resistive blanket warming to forced air warming in maintaining body temperature in participants undergoing renal transplantation.

Start: April 2021

Post-surgery Systemic Inflammation and Neuro-immune Interactions

The aim is to map the inflammatory response after surgery and further investigate the mechanisms by which inflammation is regulated. The inflammatory cascade is pivotal in protecting organisms against invading pathogens and in enabling healing of damaged tissues, yet the cascade itself may be harmful to the organism when excessive (e g septic chock). The increased immune-reactivity after trauma, such as surgery, is furthermore associated with post-operative declines in memory and learning capacity, a condition likely related to the notion of "sickness behavior". The effects on the brain after surgery and the associated neuro-immune crosstalk will now be investigated with focus on changes in immune reactivity in peripheral blood after surgery.

Start: January 2017

Non-pharmacological Treatment for Pain After Spine Surgery

This study will compare the effectiveness of two pain management pathways (standard vs. enriched) for patients undergoing lumbar spine surgery in the Military Health System (MHS). Effectiveness will be based on post-surgery patient-centered outcomes and extent of opioid use. The study design is a 2-arm, parallel group, individual-randomized trial.

Start: June 2021

The GCO-002 CACOVID-19 Cohort: a French Nationwide Multicenter Study of COVID-19 Infected Cancer Patients

Since December 2019, China and then the rest of the world have been affected by the rapid development of a new coronavirus, SARS-CoV-2 (severe acute respiratory syndrome corona virus 2). The disease caused by this coronavirus (COVID-19), which is transmitted by air via droplets, is potentially responsible for a severe respiratory syndrome but also for a multivisceral deficiency that can lead to death. Cancer patients are generally more susceptible to infections than people without cancer due to immunosuppression caused by their tumor disease and/or conventional anti-cancer treatments used such as cytotoxic chemotherapy, several targeted therapies, radiotherapy or recent surgery. These patients may therefore be at particular risk for COVID-19. This is suggested by the very first analysis on the subject, which reports data from the Chinese prospective database of 2007 patients with proven COVID-19 infection in 575 hospitals in 31 Chinese provinces. The authors of this publication conclude with 3 measures to be proposed to patients undergoing cancer follow-up: 1/ consider postponing adjuvant chemotherapy or surgery in the case of localized and stable cancer, 2/ reinforce protective measures for these patients, and 3/ monitor very closely and treat these patients more intensively when they have a COVID-19. However, the increased risk of SARS-CoV-2 infection and severe forms of COVID-19 in cancer patients suggested by this first study remains to be demonstrated given its limitations, already highlighted by other authors. Indeed, the number of patients is small and the population of cancer patients is very heterogeneous, with in particular 12 patients out of 16 who had recovered from initial cancer treatments (therefore without immunosuppression), half of whom had a disease course of more than 4 years. Nevertheless, a second Chinese study has just recently been published, reporting COVID-19 data among 1524 cancer patients admitted between December 30, 2019 and February 17, 2020 in the Department of Radiotherapy and Medical Oncology of the University Hospital of Wuhan, the source city of the COVID-19 epidemic. Although the rate of CoV-2 SARS infection was lower than that reported in the first study, it was still 0.79% (n=12), which is much higher than the rate of COVID-19 diagnosed in Wuhan City during the same period (0.37%, 41 152/11 081 000). Again, lung cancer was the main tumour location observed in 7 patients (58%), of which 5 (42%) were undergoing chemotherapy +/- immunotherapy. Three deaths (25%) were reported. Patients over 60 years of age with lung cancer had a higher incidence of COVID-19 (4.3% vs. 1.8%). Thus, it appears that the risk of COVID-19 is actually increased in cancer patients, although again, less than half of the patients with lung cancer had a higher incidence of COVID-19. Moreover, two more recent studies performed in patients treated in Hubei Province of China and in New-York city found that patients with cancer had significantly increased risk of death compared to non-cancer COVID-19 patients, especially patients with metastatic cancer and those who had recent surgery. Therefore, many questions remain to date on the level of risk and the severity of COVID-19 in patients with active cancer, in particular those under anti-cancer treatment and in patients recently operated for localized cancer.

Start: April 2020

Arthroscopic Synovectomy of the Wrist in Inflammatory Arthritis

Rationale: Psoriatic (PsA) and rheumatoid arthritis (RA) are inflammatory joint diseases that often involve the wrist and may result in progressive joint destruction followed by impaired wrist function and reduced quality of life. The first line treatment usually consists of conventional Disease-Modifying Anti-Rheumatic Drugs (cDMARDs) along with bridging therapy using systemic corticosteroids or intra-articular corticosteroids in case of limited joint disease. After initiation therapy, intra-articular corticosteroids are often utilized as they provide rapid dampening of joint inflammation in case of a flare-up of disease activity (mono- or oligoarthritis). However, a substantial part of these patients clinically respond poorly or not at all. Alternatively, arthroscopic synovectomy may provide substantial relieve of symptoms, improve functionality, slow down disease progression and prevent joint destruction, as earlier studies have suggested. Prospective randomized studies are needed to confirm these findings. Moreover, they may prevent the need for expensive biological Disease-Modifying Anti-Rheumatic Drugs (bDMARDs) and assist in guiding therapeutic strategies in the long run, through collecting and analysing valuable synovial biopsies. Wrist arthroscopy is a routine procedure in the participating centres with only minor complications and fast recovery. Objective: To compare arthroscopic synovectomy with deposition of intra-articular corticosteroids (DIACS) versus intra-articular injection of corticosteroids (IACSI) in RA and PsA patients with mono- or oligoarthritis of the wrist that is refractory to cDMARD therapy. Study design: Multi-centre randomized controlled trial conducted in the Maasstad Hospital and Spijkenisse Medisch Centrum (SMC). Study population: Patients with active RA or PsA and bDMARD-naive, who develop a localized flare of disease activity (mono- or oligoarthritis) that involves the wrist, defined as an increase in DAS28 > 1.2 or > 0.6 if DAS28 ? 3.2 compared to the last DAS28 measurement (maximum six months before) and that is refractory to systemic cDMARD for at least three months, defined as no response on the European League Against Rheumatism (EULAR) response criteria. Intervention: This study will randomize between IACSI of the wrist (control) and arthroscopic synovectomy of the wrist combined with DIACS (intervention). During arthroscopy synovial biopsies will be collected and stored for later analysis of the functional and histological characteristics of the synovium (beyond the scope of this study). Main study parameters/endpoints: Primary outcome is the change in Patient-Rated Wrist Evaluation (PRWE) score from randomization to three months of follow-up. The PRWE is a validated, fifteen-item self-reported questionnaire rating wrist pain and function. Secondary outcomes are resolution of wrist arthritis measured by ultrasound, standard wrist radiographs, DAS28, EULAR response rate, Visual Analogue Scale (VAS), EQ-5D quality of life questionnaire, iMTA Productivity Cost Questionnaire (iPCQ), iMTA Medical Consumption Questionnaire (iMCQ), cost effectiveness analyses (CEA), physical examination, adverse events (AE) and laboratory results. Follow-up visits are scheduled at three, six and twelve months after intervention. Nature and extent of the burden and risks associated with study participation: Both study arms include standard treatment of care. Wrist arthroscopy is a standard treatment for wrist arthritis and often implemented for other intra-articular wrist pathology. The risks include infection, neurovascular damage and articular surface damage. Nevertheless, wrist arthroscopy is a well-established and safe technique. Reduction of risks will be done according to inclusion and exclusion criteria. If complications arise, the treating physician will proportionate the adequate treatment according to the current protocols based on the published literature. Patients will be asked to return at three, six and twelve months. These visits are standard of care following the rheumatic arthritis protocol. Patients will be asked to complete questionnaires at baseline and at three follow-up moments. These will take 160 minutes in total. The arthroscopy group will return between ten to fourteen days for wound inspection. All patient will be contacted by telephone at two, four and six weeks for VAS pain scores. Expected results: We expect that arthroscopic synovectomy followed by DIACS will lead to significantly more improvement in PRWE scores compared to IACSI three months after intervention. Furthermore, we anticipate that wrist arthroscopy will result in lower pain scores, better joint mobility, better response on EULAR score, sustained resolution of arthritis on ultrasound, less joint damage on radiographs and is more cost-effective after one-year analysis.

Start: January 2021

Multimodal Analgesia Effect on Post Surgical Patient

Patients undergoing Bariatric Surgery at the University of California Davis Medical Center will be divided into two groups, one receiving Standard of Care pain control medications vs the second group which will receive non-narcotic pain medications with rescue pain medications available if needed

Start: January 2021

Improved Adherence With Extended Venous Thromboembolism Prophylaxis After Major Cancer Surgery

This is a prospective, twin-center, cohort study in patients discharged from the hospital after major abdominal or pelvic cancer surgery for cancer. This study is designed to evaluate the adherence to extended deep vein thrombosis prophylaxis (DVT) with the direct oral anticoagulant apixaban on the background of historical data from the investigator's center on low-molecular-weight heparin (LMWH) substandard adherence in the same setting.

Start: February 2021

Comparison of Two Apical Repair Methods in Women Undergoing Repairs for Prolapse

To date no study has determined prospectively which technique is superior to prevent recurrent Pelvic Organ Prolapse (POP) after vaginal hysterectomy- a major unmet clinical need. The aim of the study is to determine objective anatomical recurrent prolapse after Sacrospinous Ligament Fixation (SLF) vs McCall.

Start: May 2016

Real Time Tissue Characterisation Using Mass Spectrometry REI-EXCISE iKnife Study

REI-EXCISE is a multicentre, prospective, non-randomised feasibility study, aimed to evaluate the diagnostic accuracy of rapid ionisation mass spectroscopy using an iKnife device. The iKnife will collect vapour, a by-product of surgery, which will pass through the mass spectrometer machine for analysis in order to evaluate what is "normal" and what is "cancerous" breast tissue.

Start: September 2017

Impact of Renin-Angiotensin System Inhibitors Continuation on Outcome After Major Surgery

More than 200 million major surgical procedures are performed annually worldwide. Many of these patients have comorbidities including hypertension and/or heart failure. Chronic treatment of hypertension and/or heart failure very often includes a Renin-Angiotensin System (RAS) inhibitor (Angiotensin-Converting Enzyme Inhibitors (ACE-Is) or Angiotensin Receptor Blockers (ARBs). To stop or not to stop these medications before major surgery remain unknown. Data on management of RAS inhibitors before major surgery and anesthesia remain lacking and matter of debate. It is much likely that the strategy regarding management of RAS inhibitors in the peri-operative setting have important impact on peri-operative complications. The lack of evidence leads to conflicting guidelines with respect to RAS inhibitors management before major surgery. While French guidelines are to stop RAS inhibitors patients with hypertension to avoid profound anesthestic-drugs-induced hypotension, international guidelines differ. The American heart association task force states that continuation of RAS inhibitors perioperatively is reasonable (class IIa recommendation,level of evidence: B). The purpose of this study is to determine the prognostic impact of withholding vs continuing ARBs before major non cardiac surgery.

Start: February 2018

ROSSINI 2 - Reduction of Surgical Site Infection Using Several Novel Interventions

This is a Phase III, multi-arm, multi-stage (MAMS) pragmatic, blinded (patient and outcome assessor) multicentre, randomised controlled trial (RCT) with an internal pilot, to evaluate the use of three in-theatre interventions to reduce SSI rates in patients undergoing surgery with an abdominal incision. ROSSINI 2 is a non-factorial superiority design with allocation of various combinations of the three interventions to be used during the same operation, via seven possible treatment arms plus one control arm initially.

Start: March 2019

Patient Satisfaction With Tiered OR Versus Status Quo OR

Operating room (OR) costs consume a significant portion of hospital budgets. Standard or "Status Quo" ORs are equipped with the same, fixed set of assigned resources, regardless of case complexity or actual resource requirements. Allocation of resources in standard ORs is the same whether the participant is having heart surgery or bunion removal. The investigators propose a strategy for OR design and set up wherein resources are carefully matched to procedure complexity as a novel means of healthcare delivery. This prospective, comparative cohort pilot study will compare two operating room (OR) setup designs. The Tiered OR setup (study intervention) will be an efficiently staffed and equipped OR, geared to the complexity of the surgical procedure. The level of care provided would be equivalent to that of an out-patient day surgery setup. The Status Quo OR setup (control intervention) will be a standard fully equipped, fully staffed OR.

Start: February 2018