View clinical trials related to Hemangioma.
Filter by:Cerebral and medullary arteriovenous malformations (AVMs) are morphologically abnormal vessels located on the surface or in the cerebral or medullary parenchyma. These vascular lesions cause the arterial and venous networks to communicate pathologically, creating an arteriovenous shunt.The prevalence of cerebral Cerebral and medullary AVMs in general population is difficult to establish given the rarity of the condition. However, it is estimated at around 1 per 10,000 inhabitants (0.01%). About 15-20% of the cerebral vascular accidents are asymptomatic at the time of diagnosis. The occurrence of intracranial haemorrhage is the most important prognostic factor because it is associated with a significant morbidity and mortality. The management of an AVM is usually carried out in a multidisciplinary way, combining interventional neuroradiology, neurosurgery and vascular neurology. The genetic, molecular and cellular mechanisms that cause vascular malformations of the central nervous system are partially known. Several recent research works highlight mutations in the RAS-MAPK or MAPK-ERK signalling pathway in AVMs. In cases of cerebral AVMs considered to be sporadic, a somatic KRAS/BRAF mutation has recently been demonstrated in tissue samples of operated AVMs. Except in the case of Hereditary Haemorrhagic Telangiectasia (HHT or Rendu-Osler-Weber syndrome), the influence of genetic damage on the prognosis of AVM is poorly known. It is also interesting to note that genetic screening is not routinely performed in patients with cerebro-medullary AVMs and that therefore the prevalence of these clinical entities in patients with AVMs is not known.
Hepatic hemangiomas are the commonest benign mesenchymal lesions of the liver. Most of these lesions are asymptomatic. Giant hepatic hemangiomas (GHH) (> 10 cm) are often symptomatic and require surgical intervention. This study aimed to describe the clinical findings, risk factors, diagnostic approach and management of GHH.
''Evaluation of the Efficacy of Propranolol in the Treatment of Infantile Hemangioma"
Operations performed for liver hemangioma between January 2017 and December 2018 will be retrospectively analyzed.
This is retrospective study. The patients treated with oral propranolol at a dose of 2.0 mg/kg per day. Growth parameters (height and weight) were measured at the beginning, the end of treatment and 2 years after treatment. The weight-for-age Z-score (WAZ), height-for-age Z-score (HAZ) and weight-for-height Z-score (WHZ) calculated by the WHO Anthro software were used to assess physical development, and the WHO Child Growth Standards were used as the standards.
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.
This study is a multi-center, prospective, registry study. This research was supported by the National Key Research and Development Program. They were divided into experimental group and control group according to whether the treatment plan was formulated by a multidisciplinary team. Patients of experimental group is strictly in accordance with standardized multi-disciplinary treatment protocols and meet the following criteria: 1. A multi-disciplinary conference discussion; 2. Detailed preoperative evaluation based on CT, MRI, fMRI and DSA. 3. Treatment modalities meet the following treatment criteria（craniotomy, embolization and stereotactic radiosurgery）. The control group was patients who had not been treated according to a multi-disciplinary treatment protocol. Patient baseline data, AVM angioarchitectural features, imaging DICOM data, surgical information, and follow-up information were registered. All patients were evaluated for neurofunction at baseline, 3 months, 12 months, and 3 years after treatment. Main observation endpoints: 1. Modified Rankin Scale; 2. Obliteration rate; 3. Subsequent hemorrhage; 4. Complication rate (such as morbidity rate, new-onset neurological dysfunction, and radiation-related complications). Secondary observation endpoint: improvement of clinical symptoms (epilepsy, headache, neurological dysfunction) at 3 months, 12 months, and 3 years after treatment.
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.
The study aims to quantitative evaluation of parafoveal microvasculature changes in eyes with exudative circumscribed choroidal haemangioma using optical coherence tomography angiography.
The purpose of this study is to compare the use of the Micro Vascular Plug (MVP) system and other embolic devices in treatment of PAVMs. Pulmonary Arteriovenous Malformations (PAVMs) are abnormal connections between the pulmonary vein and the pulmonary artery. This affects blood flow between the heart and lungs which puts patients at risk of stroke, brain abscess, hypoxia and even sudden death. The standard treatment of PAVMs is embolization. Embolization is the placing of an embolic (synthetic agent) into a blood vessel to block blood flow. The embolic is inserted via a catheter into the blood vessel. Detachable coils are the most commonly used embolic in the treatment of PAVMs. Despite long procedure times, numerous coils that are often required to occlude a single PAVM and recanalization rates ranging from 5% to 15%, the most widely used embolic device is still the detachable coil.