Establishment of a reproducible and minimally invasive ischemic stroke model in swine

Bibliographic Details
Title: Establishment of a reproducible and minimally invasive ischemic stroke model in swine
Authors: Carlos Castaño, Marc Melià-Sorolla, Alexia García-Serran, Núria DeGregorio-Rocasolano, Maria Rosa García-Sort, María Hernandez-Pérez, Adrián Valls-Carbó, Osvaldo Pino, Jordi Grífols, Alba Iruela-Sánchez, Alicia Palomar-García, Josep Puig, Octavi Martí-Sistac, Antoni Dávalos, Teresa Gasull
Source: JCI Insight, Vol 8, Iss 8 (2023)
Publisher Information: American Society for Clinical investigation, 2023.
Publication Year: 2023
Collection: LCC:Medicine
Subject Terms: Neuroscience, Medicine
More Details: The need for advances in the management/treatment options for ischemic stroke patients requires that upcoming preclinical research uses animals with more human-like brain characteristics. The porcine brain is considered appropriate, although the presence of the rete mirabile (RM) prevents direct catheterization of the intracranial arteries to produce focal cerebral ischemia. To develop a reproducible minimally invasive porcine stroke model, a guide catheter and guide wire were introduced through the femoral artery until reaching the left RM. Using the pressure cooker technique, Squid-12 embolization material was deposited to fill, overflow, and occlude the left RM, the left internal carotid artery, and left circle of Willis wing up to the origins of the middle cerebral arteries (MCAs), mimicking the occlusion produced in the filament model in rodents. Longitudinal multimodal cerebral MRI was conducted to assess the brain damage and cerebral blood supply. The technique we describe here occluded up to the origins of the MCAs in 7 of 8 swine, inducing early damage 90 minutes after occlusion that later evolved to a large cerebral infarction and producing no mortality during the intervention. This minimally invasive ischemic stroke model in swine produced reproducible infarcts and shows translational features common to human stroke.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2379-3708
Relation: https://doaj.org/toc/2379-3708
DOI: 10.1172/jci.insight.163398
Access URL: https://doaj.org/article/c21de8f593ff4c549dea247127c76ba2
Accession Number: edsdoj.21de8f593ff4c549dea247127c76ba2
Database: Directory of Open Access Journals
More Details
ISSN:23793708
DOI:10.1172/jci.insight.163398
Published in:JCI Insight
Language:English