Active clinical trials for "Hemangioma"

Brain arteriovenous malformations are abnormal communications between brain arteries and veins with an intervening tangle of abnormal arteries (nidus). Brain AVMs may be asymptomatic or symptomatic, presenting with acute hemorrhage or neurological symptoms. Brain AVMs that have not bled carry a yearly risk of intracranial hemorrhage of approximately 4% (Ondra et al.). The management is multidisciplinary involving neurosurgeons, interventional neuroradiologists, radiation physicians, neurologists and allied health care personnel. Patients may be treated with open neurosurgery, endovascular embolization, radiation therapy or any combination of these treatments. The goal of the treatment is to eliminate the brain AVM while preserving normal flow to the surrounding normal arteries. This involves obliteration of the shunting of blood via the AVM arteries to veins by a variety of treatments. The treatment regimen is individualized dependent on natural history, the angioarchitecture, location, risk of treatment(s) and patient wishes.

Recent studies have demonstrated that growth of vascular malformations can be driven by genetic variants in one of 2 signalling pathways. Targeted drugs specific to these pathways have been developed and shown to be effective in treating cancer. This study will describe the effectiveness of (i) 12 months of alpelisib therapy for participants with slow-flow vascular malformations and a gene mutation in one of these signalling pathways (module 1) and (ii) 12 months of mirdametinib therapy for participants with fast-flow vascular malformations and a gene mutations in the other signalling pathway (module 2).

The purpose of this pilot study is to evaluate the disease-modifying efficacy of lovastatin in patients with brain arteriovenous malformation.

Cerebral Arteriovenous malformations (AVMs) are abnormal tangles which are usually believed congenital. AVM can cause different symptoms depending on where it is located, but the most common symptoms are intracranial hemorrhage and seizure. Outcomes of AVM patients can be very different due to factors like the location of lesion, age, sex etc. Generally, more early the intervention was taken, the risk of adverse events would be lower. But the selection of surgical timing for pediatric AVM patients is hard to judge, due to children's cerebral vessels angioarchitecture can be still developing with their age. Some previous studies indicated that there is no difference in intervention outcomes between pediatric and adult AVM patients, so pediatric patients should undergo more aggressive intervention. DOPA study aims to compare the clinical intervention outcomes of both pediatric and adult patients with eloquent region cerebral arteriovenous malformations, helping to determine the treatment strategy.

The aim of this study was to evaluate the diagnostic efficacy of computer aided diagnostic tool for neck masses using machine learning and deep learning techniques on clinical information and radiological images in children.

In this research study, we want to learn more about the role of new innovative surgical devices, the Karl Storz Curved and Straight Fetoscopes for in-utero surgery. A fetoscope is like a small telescope that can see inside of the uterus (womb) during minimally invasive surgery. The curved scope is used for patients with an anterior placenta (front of uterus), while the straight scope is used for patients with a posterior placenta (back of uterus). The scopes will be used to assist in procedures involving fetoscopic laser photocoagulation (FLP), which is a minimally invasive surgery that uses a small camera (fetoscope) to locate abnormal blood vessel connections in the placenta and seal them off using laser energy. These fetoscopes will be utilized in the diagnosis and management of various fetal conditions that can arise during pregnancy. Outcome data will be reported in a descriptive statistical analysis. We will assess the surgical outcomes, short and long-term morbidity, complications, and gestational age of these patients in order to evaluate the benefit of using these devices.

The purpose of this study is to investigate the role of multimodal CT in evaluating and predicting different clinical outcomes in patients with unruptured brain arteriovenous malformations with medical management alone. This study will be undertaken in the following aspects: Morphological, structural and imaging histological signal analysis based on multimodal CT to explore the relationship between imaging features and different clinical outcomes of bAVMs. Hemodynamic and flow pattern analysis of local and peripheral bAVMs based on multimodal CT to explore the association between blood flow features and different clinical outcomes. Based on multimodal CT and deep learning algorithms to create an automated segmentation model for bAVMs and a prediction model for distinct clinical outcomes. The obtained patient information includes: Baseline information, CT, MRI, DSA (Optional), and follow-up information. Follow-up will be undertaken at 6 months, 12 months, 24 months and 36 months after enrollment with the following primary observation. Main observation endpoints: Hemorrhage events associated with bAVMs New epilepsy symptoms or exacerbations New neurological dysfunction(including motor dysfunction, cognitive dysfunction, etc).

The project aims to develop prognostic and diagnostic blood tests for symptomatic brain hemorrhage in patients diagnosed with cavernous angiomas, a critical clinical challenge in a disease affecting more than a million Americans. We further examine whether blood biomarkers can replace or enhance the accuracy of advanced imaging in association with lesional bleeding. The project tests a novel integrational approach of biomarker development in a mechanistically defined cerebrovascular disease, with a clinically relevant context of use.

This study highlights the global management of the various components of outpatient pain by hypnoanalgesia (pain management by hypnosis) in radiopediatrics. Indeed, pain is induced by sclerosis of cutaneous angiomas in interventional radiology. It is managed by MEOPA (an equimolar mixture of oxygen nitrous oxide) or by general anesthesia. For four years, the medical electroradiology technologist of the Mother and Child Hospital (HFME) of the Hospices Civils de Lyon offer patients in addition a pain management by hypnoanalgesia. The investigator propose a multicenter open randomized study comparing two pain management strategies, in children aged 7 to 18 years treated for cutaneous angioma by sclerosis in interventional radiology at the HFME. The two strategies studied are: Hypnoanalgesia and MEOPA (the reference strategy). The main objective is to evaluate the efficacy of hypnoanalgesia compared to the standard of care of pain, which is the use of MEOPA, in the treatment of sclerosis of cutaneous angioma in pediatric interventional radiology.

Arteriovenous malformation (AVM) is a tangle of abnormal vessels that can progress through life and cause significant bleeding, deformity, pain, and deficits in day-to-day activities. Surgery is a common treatment option for patients with AVMs where the goal is to safely remove the entire AVM without causing complications. While any surgery has its potential risks, most of the potential modifiable risk factors relate to the AVM's structure, such as the AVM size or presence of high risk structural features seen on scans. The purpose of this pilot study is to see whether taking an oral medication called Trametinib can improve upon the AVM structure in adult patients before their scheduled surgery.