View clinical trials related to Foramen Ovale, Patent.
Filter by:We aimed to explore: (1）long-term complications of PFO closure; (2) antiplate or anticoagulation use after PFO closure.
The INTELICE trial is a prospective, multicenter, 1:1 randomized controlled non-inferiority study. It aims to compare a novel intracardiac echography (ICE) catheter and combined ultrasound system with existing commercial ones. The evaluation will be conducted on patients undergoing planned intracardiac interventional process.
This study is a multi-center (Sinchon Severance hospital / Gangnam Severance hospital), prospective cohort observational study to patients who had undergone structural heart intervention including device closure for secundum type atrial septal defect or Patent foramen ovale. Transthoracic echocardiography will be performed before the procedure, immediately after, and at 6, 18, 30 months after the procedure. Wearable ECG monitoring (> 3 days) will be performed before the procedure or immediately after procedure. Demographic, laboratory, hemodynamic data during procedure, and non-invasive imaging dat are obtained.
Migraine is one of the most common chronic neurological disorders, posing a significant global public health concern. Patent Foramen Ovale (PFO) is the most common congenital heart anomaly in adults. Mechanisms linking PFO to migraine include cortical spreading depression, vascular active substance theory, impaired cerebral autoregulation, and genetic susceptibility. Understanding these mechanisms holds promise for overcoming challenges in the prevention and treatment of migraines in PFO patients. At least 11 observational studies, comprising 1,632 subjects, described the efficacy of PFO closure in cryptogenic stroke. Of these, 34% had migraines, and percutaneous PFO closure reportedly reduced migraine days by 81% (with a reduction of over 50% in monthly migraine days). Prospective randomized controlled trials (PRIMA and PREMIUM trials) assessing the Amplatzer® PFO Occluder showed significant benefits in most secondary endpoints, with a pooled analysis indicating its safety and effectiveness compared to medical therapy.While traditional metal PFO closure studies suggest symptom relief, reports also mention potential new-onset or worsened migraines post-closure. Proposed mechanisms include platelet activation, microthrombus formation, nickel allergy, and septal deformation or stretching inducing the release of migraine-related vascular active substances. However, these theories are closely tied to the presence of permanent metal implants. Addressing these concerns, the MemoSorb® biodegradable PFO Occluder system, approved by the National Medical Products Administration (NMPA) in September 2023, offers an innovative solution. Developed collaboratively by the National Biomedical Materials Engineering Technology Research Center, Professor Wang Yunbing's team, Professor Pan Xiangbin's team from Fuwai Hospital, Chinese Academy of Medical Sciences, and HeartTech Medical, this groundbreaking technology represents a shift from metal to degradable materials. The occluder serves as a temporary bridge post-implantation, gradually degrading with endothelialization, facilitating comprehensive self-repair. This intervention concept theoretically avoids the lifelong complications associated with traditional metal occluders, effectively reducing postoperative symptoms like migraines and dizziness. To assess and compare the treatment outcomes, especially in relieving migraines, a prospective, single-blind, randomized controlled study has been designed for patients with patent foramen ovale and migraine, comparing the novel biodegradable occluder with the metal occluder.
The study will include all patients over 18 years of age who underwent endovascular closure of patent foramen ovale in medical centers in the Russian Federation, who gave written informed consent to the closure and provided personal data as part of inpatient medical care. The project participants will be 29 medical centers in the Russian Federation, where endovascular closure of patent foramen ovale is performed.
The aim of this study is to evaluate the benefits of patent foramen ovale (PFO) closure on patients with obstructive sleep apnea (OSA) and persistent hypoxia despite optimal therapy.
To assess whether PFO closure plus antiplatelet therapy is superior to antiplatelet therapy alone and whether oral anticoagulant therapy is superior to antiplatelet therapy to prevent stroke recurrence in patients aged 60 to 80 years with a PFO with large shunt (> 20 microbubbles) or a PFO associated with an ASA (> 10 mm), and an otherwise unexplained ischemic stroke.
To evaluate the safety and effectiveness of the SnowyTM PFO closure system in plugging patent foramen ovale
Patent foramen ovale arises from the incomplete postnatal fusion of the septum primum and secundum and can cause paradoxical embolism in adults. In case of cerebral ischemic stroke, the correlation with the patent foramen ovale is based on probabilistic approach. For this reason, continuous research is indispensable, especially according to new approaches, to offer tools capable of guiding in case of adverse event with greater certainty and even better to prevent it. Thus, this study aims to: 1) evaluate the microstructural brain damage through advanced MRI analysis in patients with patent foramen ovale; 2) evaluate how much the degree of the shunt can affect brain damage. In order to do this, this study aims to evaluate advanced brain imaging in a cohort of patients with patent foramen ovale to identify the development of early vascular damage.
The ACHDi Registry study will create a foundational database for adult congenital heart disease interventions. This Pan-Canadian Registry will collect clinical and patient-reported information that will enable the evaluation of care processes and outcomes in five most common ACHDi interventions by enabling prospective and retrospective registry-based studies to answer important clinical practice and policy-relevant questions.