View clinical trials related to Vascular System Injuries.
Filter by:Background Digital vasospasm as part of frostbite sequelae is comparable to the vasospastic disorders found in Raynaud's phenomenon which has been successfully treated with Botulinum toxin type A injections in the palm of the hands. Aim of this pilot study To investigate the effect of Botulinum toxin type A for frostbite sequelae in the fingers. Hypothesis The null hypothesis which is that all study-subjects will have equal distribution of symptoms and measurements after treatment, regardless of injection with Botulinum toxin type A or placebo. Methodology A randomized, double-blind, placebo-controlled study design, The study population consists of four patients with frostbite sequelae. The patients are randomized to either treatment with Botulinum toxin type A or placebo Two patients in the primary treatment group will receive Botulinum toxin type A at their first injection at inclusion, while the two patients in the secondary treatment group will receive normal saline (placebo) as their first injection at inclusion. At 6 weeks follow up, the primary treatment group will receive their second injection of Botulinum toxin type A and the secondary treatment group now will receive their second injection, but this will be their first injection of Botulinum toxin type A. By using the described study-design, all participating soldiers will get treatment. However, the secondary treatment group will have a delayed onset of treatment with Botulinum toxin type A and serves as a control for the primary treatment group during the initial 6 weeks observation. Botulinum toxin A and placed will be injected near the neurovascular bundle at the A1 pulley in the palm of the hand using a total dosage 100 U per hand (concentration 50 U per ml), 8-12 U/ injection site. The effect of Botulinum toxin type A on subjective symptoms will be measured by Patients Subjective Symptom Score (PSSS) The effect of Botulinum toxin type A on peripheral microcirculation will be evaluated with dynamic infrared thermography (DIRT) of the dorsal side of the hands. Quantitative sensory testing will be used to evaluate the effect of Botulinum toxin type A on peripheral nerve function. Both DIRT and QST will be performed prior to the treatment with Botulinum toxin type A and placebo at the start of the pilot study, at 6 weeks as well as 6 weeks after the last injections. Statistical methods and data analysis will be performed according to the EMA guidelines for biostatistics. Statistical analysis will be performed according to the null hypothesis.
Background: For thirty years, a major shift in the management of liver trauma has been seen. Contained hepatic vascular injuries (CHVI), including pseudo aneurysms and arteriovenous fistula, are often feared due to their risk of secondary bleeding. Nonetheless, knowledge of CHVI is scarce and no guidelines on their management have been set. The investigators aimed to validate the risk factors of CHVI, identify associated morbidities, and establish a management protocol. Study Design: A retrospective study on 318 liver trauma from a level 1 trauma center over the last 15 years, comparing the presence or not of CHVI. Univarious and multivarious analyses were performed. A comparison of the management of CHVI was also performed.
The goal of this research project is to develop a tele-rehabilitation programme, which will constitute an original care pathway for brain damaged patients. It will aim to improve their impairments, activities and social participation. The programme will deliver a therapeutic education and self-education programme targeting the upper and lower limbs, and will assess the patients by means of a diary and self-evaluation questionnaires.
Heart failure with preserved ejection fraction (HPEF, defined as LVEF ≥50%) represents 50% of hospital admissions for heart failure. Although its morbi-mortality is similar to that of heart failure with reduced ejection fraction (HFPEF), it remains an unknown disease with limited data especially from an etiological point of view. The underlying causes are imperfectly understood, and more than half of the patients have HPEF labeled "idiopathic." A non-hierarchical clustering study of HPEF patients led to the identification of a subgroup of patients (25%) with a predominant coronary vascular phenotype (i.e., a history of coronary stenosis with or without the need for revascularization). In these patients, vascular endothelial dysfunction would play a central role in the development and progression of heart failure.One of the mechanisms leading to HPEF could be a decrease in the bioavailability of nitric oxide (NO) involved in the relaxation of the cardiac muscle. As the mechanism of action of NO is pleiotropic, a decrease in NO bioavailability could also be observed at the peripheral level, favoring in the long term the development of unfavorable vascular remodeling, for example in the small digital or retinal arteries.Some HPEF patients could thus be distinguished from others by their predominant "vascular" profile. The link between HPEF and endothelial dysfunction has been suspected but never clearly demonstrated. Ultra-high frequency ultrasound is an innovative technology to estimate the remodeling of small distal arteries in a non-invasive way. The investigators propose to use this imaging on digital arteries in HPEF patients and to study the association with known coronary macrovascular damage.The remodeling parameters will be measured and compared in patients with HPEF with or without identified macrovascular coronary disease.This characterization of arterial remodeling on the digital arteries could be a powerful tool for non-invasive screening in the identification of a subgroup of HPEF that is still considered idiopathic.
Within the framework of the project presented here, a registry for traumatic vascular injuries will be established at Augsburg University Hospital. Patients who are treated at our hospital for an isolated vascular trauma or a vascular involvement in (poly-)trauma will be included. This is a rare complication of trauma, so data collection in a registry is useful to pool data on therapeutic procedures and outcome. These patients differ from the usual vascular surgery patient clientele because there is usually no previous vascular disease. Healthy vessels show different physiological responses than pre-diseased vessels. The usual therapeutic procedures and materials are also developed for arteriosclerotic or aneurysmatic vessels. Therefore, a core objective of this study is to assess long-term outcomes after vascular trauma.
The study aims to assess an individual or self-administered computer therapy's effectiveness in grammatical time marking. The main objective is to examine whether the therapy improves grammatical time marking of inflected verbs treated on the sessions. We also explore whether the observed progress can be transferred to untrained items, more ecological contexts and if is maintained two and four weeks after the end of treatment. This therapy will be administered to six individuals with brain lesions after stroke. Four individuals will take part of the individual therapy and two individuals will take part of the self-administered computer therapy. The therapy will last one month, at the rate of three weekly sessions of approximately one hour.
Investigation of the effect of mechanical ventilation on biomarkers of microvascular damage
The purpose of this study is to determine how vaping affects blood vessels, in particular if early damage occurs in the lung vessels.
Evidence suggests that the rate of treatable vascular injury is increasing due to improved pre-hospital strategies. The increased rate of vascular trauma occurs in an era of increased sub-specialization, shifting training paradigms and the emergence of endovascular therapies. These factors, in combination with the baseline complexity of vascular trauma, make it particularly important that the management of this injury pattern be evidence-based. However, because all forms and distributions of vascular injury represent only 4% to 9% of trauma admissions, meaningful study of one injury pattern, patient population, therapeutic or surveillance strategy is difficult at a single institution. Further complicating such efforts is the fact that vascular trauma is managed by a wide range of surgical and now endovascular specialists, further fragmenting even a busy trauma institution's experience with vascular injury.
Severe Acquired Brain Injury (sABI) is defined as "an encephalic impairment that occurs after birth and is not related to a congenital or degenerative disease. This impairment may be temporary, or permanent, and cause partial or functional disability or psychosocial distress." In Italy there are at least 10-15 new cases of sABI per year per 100,000 inhabitants; the estimated prevalence is about 150,000 cases per year. Often, people with sABI present focal neurological deficits, including alterations in strength, sensitivity, coordination and gait. Most of the rehabilitation protocols for people with sABI are derived from post-stroke studies, caused by lack of evidence on specific rehabilitation of people with sABI. Rehabilitation of people with sABI should begin as soon as possible, to prevent the onset of retractions and decubitus, and to regain joint mobility, strength, and coordination. OMEGO® (Tyromotion) is a newly developed device used in lower extremity rehabilitation, that provides visual and auditory feedback. Specifically, OMEGO® contains several games developed to enhance and promote learning behaviors, that simulate activities of daily living. The use of devices such as cycle ergometers is recommended in the rehabilitation of people with sABI; however, there are no studies demonstrating the effect of cycle ergometer training in association with visual feedback. The purpose of this study is to evaluate, both in people without apparent pathology (hereafter identified as "healthy") and in people with sABI, whether visual feedback during OMEGO® exercise modifies brain connectivity, emotional drive, and lower limb performance during a lower limb-specific motor rehabilitation task.