Numerical modeling is an effective tool for preoperative planning. The present work is devoted to a retrospective analysis of neurosurgical treatments for the occlusion of cerebral aneurysms using flow-diverters and hemodynamic factors affecting stent endothelization. Several different geometric approaches have been considered for virtual flow-diverters deployment. A comparative analysis of hemodynamic parameters as a result of computational modeling has been carried out basing on the four clinical cases: one successful treatment, one with no occlusion and two with in stent stenosis. For the first time, a quantitative assessment of both: the limiting magnitude of shear stresses that are necessary for the occurrence of in stent stenosis (MaxWSS > 1.23) and for conditions in which endothelialization is insufficiently active and occlusion of the cervical part of the aneurysm does not occur (MaxWSS < 1.68)—has been statistacally proven (p < 0.01).
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9025183 | PMC |
| http://dx.doi.org/10.3390/jpm12040652 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Surgical treatment experience of seven cases of Berry syndrome.
J Cardiothorac Surg
December 2024
Beijing Children's Hospital Capital Medical University Beijing, Beijing, China.
Objective: Berry syndrome is a group of rare congenital cardiac malformations including aortopulmonary window (APW), aortic origin of the right pulmonary artery (AORPA), interruption of the aortic arch (IAA), patent ductus arteriosus (PDA) (supplying the descending aorta) and intact ventricular septum. This paper will analyze the clinical data of 7 patients with Berry syndrome who underwent surgical treatment in our institution and discuss the one-stage surgical correction of Berry syndrome in combination with the literature.
Methods: From January 2013 to July 2024, a total of 7 children with Berry syndrome were admitted to the Cardiac Surgery Department of Beijing Children's Hospital.
A novel intraoperative Esophagus-Sparing Anastomotic Narrowing Revision (ESANR) technique for patients who underwent esophagojejunostomy: three case reports and a review of the literature.
World J Surg Oncol
December 2024
Department of General Surgery, The Affiliated Nanchong Central Hospital of North Sichuan Medical College (University), Nanchong, 637000, China.
Aim: The aim of this study was to introduce the Esophagus-Sparing Anastomotic Narrowing Revision (ESANR) technique for the intraoperative management of anastomotic narrowing and to conduct a literature review to provide an algorithm for the management of narrowing and strictures that may develop secondary to esophagojejunostomy.
Methods: Three patients with anastomotic narrowing during esophagojejunostomy were analyzed between September 2019 and June 2024. The anastomotic narrowing was detected by intraoperative gastroscopy after reconstruction.
Twenty years of anastomotic stenosis combined with tracheocolonic fistula after colon replacement esophagectomy: a case report.
Front Oncol
December 2024
Lanshan District People's Hospital, Department of Thoracic Surgery, Linyi, Shandong, China.
Esophageal stricture is the most common and disabling complication of esophageal injury caused by ingestion of corrosive substances. In our case, the patient developed esophageal stenosis due to ingestion of strong alkaline substances and underwent colon replacement surgery after repeated failed dilation treatments. After surgery, anastomotic stenosis and tracheocolonic fistula occurred successively, and the entire diagnosis and treatment cycle of this disease lasted for more than 20 years.
View Article and Find Full Text PDFRenal artery angioplasty in Takayasu disease: Difficult anatomy addressed with a novel technique.
Med J Armed Forces India
December 2024
Professor & Head (Radiodiagnosis), Bharati Vidyapeeth (Deemed to be University) Medical College, Pune, India.
Takayasu arteritis is a well-established medical entity involving inflammatory changes in large arteries. We describe a characteristic case of Takayasu arteritis, in a young woman with significant renal artery stenosis, presenting with hypertensive urgency. Unsuccessful guide wire passage due to fibrotic septae in lumen of the left renal artery necessitated an innovative interventional approach, using an IMA-guide catheter and a UB3 coronary guidewire to cross the lesions, followed by placement of a coronary drug eluting stent, with an aim to avoid restenosis.
View Article and Find Full Text PDFSevere restenosis after stentless treatment with coronary intravascular lithotripsy for calcified nodule lesions: a serial observation with IVUS.
Oxf Med Case Reports
December 2024
Department of Cardiology, Pulmonology, Hypertension & Nephrolgy, Ehime University Graduate School of Medicine, Toon, Japan.
An 82-year-old woman with a history of myocardial infarction presented with worsening effort angina. Coronary angiography (CAG) revealed 75% stenosis in the proximal left anterior descending artery (LAD), with intravascular ultrasound (IVUS) identifying a severe calcified nodule near a previously implanted drug-eluting stent. The lesion was treated with intravascular lithotripsy (IVL) and a drug-coated balloon (DCB), avoiding left main crossover stenting.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!