scispace - formally typeset
Search or ask a question
Author

Tim Lees

Bio: Tim Lees is an academic researcher from Freeman Hospital. The author has contributed to research in topics: Varicose veins & Abdominal aortic aneurysm. The author has an hindex of 28, co-authored 64 publications receiving 3820 citations. Previous affiliations of Tim Lees include Newcastle University & Royal Society of Medicine.


Papers
More filters
Journal ArticleDOI
Jörg Ederle1, Joanna Dobson1, Joanna Dobson2, Roland L Featherstone1  +348 moreInstitutions (40)
TL;DR: Completion of long-term follow-up is needed to establish the efficacy of carotid artery stenting compared with endarterectomy, but in the meantime, carotin artery stent should remain the treatment of choice for patients suitable for surgery.

1,115 citations

Reference EntryDOI
TL;DR: GCS are effective in diminishing the risk of DVT in hospitalised patients and data examination suggests that GCS on a background of another method of prophylaxis is more effective than G CS on its own.
Abstract: Background One of the settings where deep vein thrombosis (DVT) in the lower limb and pelvic veins occurs is in hospital with prolonged immobilisation of patients for various surgical and medical illnesses. Using graduated compression stockings (GCS) in these patients has been proposed to decrease the risk of DVT. This is an update of a Cochrane review first published in 2000 and updated in 2003. Objectives To determine the magnitude of effectiveness of GCS in preventing DVT in various groups of hospitalised patients. Search methods For this update the Cochrane Peripheral Vascular Diseases Group searched their Specialised Register and the Cochrane Central Register of Controlled Trials (CENTRAL) (The Cochrane Library 2009, Issue 4) for randomised controlled trials of elastic or graduated compression stockings for prevention of DVT. Selection criteria Randomised controlled trials (RCTs) involving GCS alone; or GCS used on a background of any other DVT prophylactic method. Data collection and analysis One author extracted the data, assessed the quality of trials and analysed the results; which were cross-checked and authenticated by a second author. Main results Eighteen RCTs were identified. GCS were applied on the day before surgery or on the day of surgery and were worn up until discharge or until the patients were fully mobile. In the majority of the included studies DVT was identified by the radioactive I125 uptake test. For GCS alone, eight RCTs were identified involving 1279 analytic units (887 patients). In the treatment group (GCS), of 662 units, 86 developed DVT (13%) in comparison to the control group (without GCS) of 617 units where 161 (26%) developed DVT. The Peto's odds ratio (OR) was 0.35 (95% confidence interval (CI) 0.26 to 0.47) with an overall effect favouring treatment with GCS (P < 0.00001). For GCS on a background of another prophylactic method, 10 RCTs were identified involving 1248 analytic units (576 patients). In the treatment group (GCS plus another method), of 621 units, 26 (4%) developed DVT, in the control group (the other method alone), of 627 units, 99 (16%) developed DVT (OR 0.25, 95% CI 0.17 to 0.36). The overall effect also favoured treatment with GCS on a background of another DVT prophylactic method (P < 0.00001). Authors' conclusions GCS are effective in diminishing the risk of DVT in hospitalised patients. Data examination also suggests that GCS on a background of another method of prophylaxis is more effective than GCS on its own.

341 citations

Journal ArticleDOI
TL;DR: Perioperative outcome after intact AAA repair was stable over time, but improved after ruptured repair, and the rate of AAA repair in octogenarians as well as EVAR increased over time.

190 citations

Journal ArticleDOI
TL;DR: Quality-of-life measures were generally similar among the study groups, with the exception of a slightly worse disease-specific quality of life in the foam group than in the surgery group.
Abstract: BACKGROUND Ultrasound-guided foam sclerotherapy and endovenous laser ablation are widely used alternatives to surgery for the treatment of varicose veins, but their comparative effectiveness and safety remain uncertain. METHODS In a randomized trial involving 798 participants with primary varicose veins at 11 centers in the United Kingdom, we compared the outcomes of foam, laser, and surgical treatments. Primary outcomes at 6 months were disease-specific quality of life and generic quality of life, as measured on several scales. Secondary outcomes included complications and measures of clinical success. RESULTS After adjustment for baseline scores and other covariates, the mean disease-specific quality of life was slightly worse after treatment with foam than after surgery (P = 0.006) but was similar in the laser and surgery groups. There were no significant differences between the surgery group and the foam or the laser group in measures of generic quality of life. The frequency of procedural complications was similar in the foam group (6%) and the surgery group (7%) but was lower in the laser group (1%) than in the surgery group (P<0.001); the frequency of serious adverse events (approximately 3%) was similar among the groups. Measures of clinical success were similar among the groups, but successful ablation of the main trunks of the saphenous vein was less common in the foam group than in the surgery group (P<0.001). CONCLUSIONS Quality-of-life measures were generally similar among the study groups, with the exception of a slightly worse disease-specific quality of life in the foam group than in the surgery group. All treatments had similar clinical efficacy, but complications were less frequent after laser treatment and ablation rates were lower after foam treatment. (Funded by the Health Technology Assessment Programme of the National Institute for Health Research; Current Controlled Trials number, ISRCTN51995477.)

162 citations


Cited by
More filters
Journal ArticleDOI
01 Jan 2011-Stroke
TL;DR: In this paper, the authors provided evidence-based recommendations for the prevention of future stroke among survivors of ischemic stroke or transient ischemi-chemic attack, including the control of risk factors, intervention for vascular obstruction, antithrombotic therapy for cardioembolism, and antiplatelet therapy for noncardioembolic stroke.
Abstract: The aim of this updated guideline is to provide comprehensive and timely evidence-based recommendations on the prevention of future stroke among survivors of ischemic stroke or transient ischemic attack. The guideline is addressed to all clinicians who manage secondary prevention for these patients. Evidence-based recommendations are provided for control of risk factors, intervention for vascular obstruction, antithrombotic therapy for cardioembolism, and antiplatelet therapy for noncardioembolic stroke. Recommendations are also provided for the prevention of recurrent stroke in a variety of specific circumstances, including aortic arch atherosclerosis, arterial dissection, patent foramen ovale, hyperhomocysteinemia, hypercoagulable states, antiphospholipid antibody syndrome, sickle cell disease, cerebral venous sinus thrombosis, and pregnancy. Special sections address use of antithrombotic and anticoagulation therapy after an intracranial hemorrhage and implementation of guidelines.

4,545 citations

Journal ArticleDOI
TL;DR: Although a significant number of aspects of care have relatively weak support, evidence-based recommendations regarding the acute management of sepsis and septic shock are the foundation of improved outcomes for these critically ill patients with high mortality.
Abstract: To provide an update to “Surviving Sepsis Campaign Guidelines for Management of Sepsis and Septic Shock: 2012”. A consensus committee of 55 international experts representing 25 international organizations was convened. Nominal groups were assembled at key international meetings (for those committee members attending the conference). A formal conflict-of-interest (COI) policy was developed at the onset of the process and enforced throughout. A stand-alone meeting was held for all panel members in December 2015. Teleconferences and electronic-based discussion among subgroups and among the entire committee served as an integral part of the development. The panel consisted of five sections: hemodynamics, infection, adjunctive therapies, metabolic, and ventilation. Population, intervention, comparison, and outcomes (PICO) questions were reviewed and updated as needed, and evidence profiles were generated. Each subgroup generated a list of questions, searched for best available evidence, and then followed the principles of the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) system to assess the quality of evidence from high to very low, and to formulate recommendations as strong or weak, or best practice statement when applicable. The Surviving Sepsis Guideline panel provided 93 statements on early management and resuscitation of patients with sepsis or septic shock. Overall, 32 were strong recommendations, 39 were weak recommendations, and 18 were best-practice statements. No recommendation was provided for four questions. Substantial agreement exists among a large cohort of international experts regarding many strong recommendations for the best care of patients with sepsis. Although a significant number of aspects of care have relatively weak support, evidence-based recommendations regarding the acute management of sepsis and septic shock are the foundation of improved outcomes for these critically ill patients with high mortality.

4,303 citations

Journal ArticleDOI
01 Jun 2008-Chest
TL;DR: This article discusses the prevention of venous thromboembolism (VTE) and is part of the Antithrombotic and Thrombolytic Therapy: American College of Chest Physicians Evidence-Based Clinical Practice Guidelines (8th Edition).

3,944 citations

Journal ArticleDOI
TL;DR: Neumann et al. as discussed by the authors proposed a task force to evaluate the EACTS Review Co-ordinator's work on gender equality in the context of women's reproductive health.
Abstract: Authors/Task Force Members: Franz-Josef Neumann* (ESC Chairperson) (Germany), Miguel Sousa-Uva* (EACTS Chairperson) (Portugal), Anders Ahlsson (Sweden), Fernando Alfonso (Spain), Adrian P. Banning (UK), Umberto Benedetto (UK), Robert A. Byrne (Germany), Jean-Philippe Collet (France), Volkmar Falk (Germany), Stuart J. Head (The Netherlands), Peter Jüni (Canada), Adnan Kastrati (Germany), Akos Koller (Hungary), Steen D. Kristensen (Denmark), Josef Niebauer (Austria), Dimitrios J. Richter (Greece), Petar M. Seferovi c (Serbia), Dirk Sibbing (Germany), Giulio G. Stefanini (Italy), Stephan Windecker (Switzerland), Rashmi Yadav (UK), Michael O. Zembala (Poland) Document Reviewers: William Wijns (ESC Review Co-ordinator) (Ireland), David Glineur (EACTS Review Co-ordinator) (Canada), Victor Aboyans (France), Stephan Achenbach (Germany), Stefan Agewall (Norway), Felicita Andreotti (Italy), Emanuele Barbato (Italy), Andreas Baumbach (UK), James Brophy (Canada), Héctor Bueno (Spain), Patrick A. Calvert (UK), Davide Capodanno (Italy), Piroze M. Davierwala

3,879 citations

Journal ArticleDOI
TL;DR: The ACC and AHA have collaborated with the National Heart, Lung, and Blood Institute and stakeholder and professional organizations to develop guidelines, standards, and policies that promote optimal patient care and cardiovascular health.
Abstract: Preamble and Transition to ACC/AHA Guidelines to Reduce Cardiovascular Risk S50 The goals of the American College of Cardiology (ACC) and the American Heart Association (AHA) are to prevent cardiovascular diseases (CVD); improve the management of people who have these diseases through professional education and research; and develop guidelines, standards, and policies that promote optimal patient care and cardiovascular health. Toward these objectives, the ACC and AHA have collaborated with the National Heart, Lung, and Blood Institute (NHLBI) and stakeholder and professional organizations to develop …

3,524 citations