For Publishers
DiscoveryMetadataPeer reviewHostingPublishing
For Researchers
JoinPublishReviewCollect
Register
Blog
About
Search
Advanced search
My ScienceOpen
Search
For Publishers
For Researchers
Blog
About
3
views
9
references
 Top references
cited by
3
    
0 reviews
 Review
0
comments
 Comment
0
recommends
+1 Recommend
0 collections
    0
    shares
      275
      similar
       All similar
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Efficacy and Safety of a Modified Pigtail-Shaped Microguidewire during Endovascular Thrombectomy

      case-report

      Read this article at

      ScienceOpenPublisherPMC
      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          A 75-year-old man presented with right-sided hemiplegia and was diagnosed with a left middle cerebral artery occlusion. He underwent endovascular thrombectomy, and a bulge was found. A modified pigtail-shaped microguidewire (MPMGW) proved useful for diagnosis because it allowed differentiation between the occluded artery and a saccular aneurysm as the etiology. When a clot was partially retrieved, a previously unidentified vessel dilatation appeared. The dilatation origin was unclear and could have resulted from either the occluded artery or an unruptured saccular aneurysm. We tried to navigate the MPMGW into the bulging area. The patient showed unusual body movement attributed to pain and the dilatation was diagnosed as an aneurysm. Subsequent 3-dimensional angiography revealed a recanalized artery and the aneurysm. With no subarachnoid hemorrhage or extravasation of the contrast medium. The hemiplegia dramatically improved. An MPMGW may be useful in acute thrombectomy where the target vessel cannot be visualized during the procedure.

          Related collections

          Most cited references9

          • Record: found
          • Abstract: found
          • Article: not found

          Prevalence and risk of rupture of intracranial aneurysms: a systematic review.

          G Rinkel, M Djibuti, A Algra … (1998)
          The estimates on the prevalence and the risk of rupture of intracranial saccular aneurysms vary widely between studies. We conducted a systematic review on prevalence and risk of rupture of intracranial aneurysms and classified the data according to study design, study population, and aneurysm characteristics. We searched for studies published between 1955 and 1996 by means of a MEDLINE search and a cumulative review of the reference lists of all relevant publications. Two authors independently assessed eligibility of all studies and extracted data on study design and on numbers and characteristics of patients and aneurysms. For data on prevalence we found 23 studies, totalling 56,304 patients; 6685 (12%) of these patients were from 15 angiography studies. Prevalence was 0.4% (95% confidence interval, 0.4% to 0.5%) in retrospective autopsy studies, 3.6% (3.1 to 4.1) for prospective autopsy studies, 3.7% (3.0 to 4.4) in retrospective angiography studies, and 6.0% (5.3 to 6.8) in prospective angiography studies. For adults without specific risk factors, the prevalence was 2.3% (1.7 to 3.1); it tended to increase with age. The prevalence was higher in patients with autosomal dominant polycystic kidney disease (relative risk [RR], 4.4 [2.7 to 7.2]), a familial predisposition (RR, 4.0 [2.7 to 6.0]), or atherosclerosis (RR, 2.3 [1.7 to 3.1]). Only 8% (5 to 11) of the aneurysms were >10 mm. For the risk of rupture, we found nine studies, totalling 3907 patient-years. The overall risk per year was 1.9% (1.5 to 2.4); for aneurysms = 10 mm, the annual risk was 0.7% (0.5 to 1.0). The risk was higher in women (RR, 2.1[1.1 to 3.9]) and for aneurysms that were symptomatic (RR, 8.3 [4.0 to 17]), >10 mm (RR, 5.5 [3.3 to 9.4]), or in the posterior circulation (RR, 4.1 [1.5 to 11]). Data on prevalence and risk of rupture vary considerably according to study design, study population, and aneurysm characteristics. If all available evidence with inherent overestimation and underestimation is taken together, for adults without risk factors for subarachnoid hemorrhage, aneurysms are found in approximately 2%. The vast majority of these aneurysms are small (=10 mm) and have an annual risk of rupture of approximately 0.7%.
          Article 0 comments Cited 138 times – based on 0 reviews     Review now
            Bookmark
            • Record: found
            • Abstract: found
            • Article: not found

            A modified National Institutes of Health Stroke Scale for use in stroke clinical trials: preliminary reliability and validity.

            Barry J. Broderick, L. Lu, T Brott … (2001)
            The National Institutes of Health Stroke Scale (NIHSS) is accepted widely for measuring acute stroke deficits in clinical trials, but it contains items that exhibit poor reliability or do not contribute meaningful information. To improve the scale for use in clinical research, we used formal clinimetric analyses to derive a modified version, the mNIHSS. We then sought to demonstrate the validity and reliability of the new mNIHSS. The mNIHSS was derived from our prior clinimetric studies of the NIHSS by deleting poorly reproducible or redundant items (level of consciousness, face weakness, ataxia, dysarthria) and collapsing the sensory item into 2 responses. Reliability of the mNIHSS was assessed with the certification data originally collected to assess the reliability of investigators in the National Institute of Neurological Disorders and Stroke (NINDS) rtPA (recombinant tissue plasminogen activator) Stroke Validity of the mNIHSS was assessed with the outcome results of the NINDS rtPA Stroke Trial: Reliability was improved with the mNIHSS: the number of scale items with poor kappa coefficients on either of the certification tapes decreased from 8 (20%) to 3 (14%) with the mNIHSS. With the use of factor analysis, the structure underlying the mNIHSS was found identical to the original scale. On serial use of the scale, goodness of fit coefficients were higher with the mNIHSS. With data from part I of the trial data, the proportion of patients who improved >/=4 points within 24 hours after treatment was statistically significantly increased by tPA (odds ratio, 1.3; 95% confidence limits, 1.0, 1.8; P=0.05). Likewise, the odds ratio for complete/nearly complete resolution of stroke symptoms 3 months after treatment was 1.7 (95% confidence limits, 1.2, 2.6) with the mNIHSS. Other outcomes showed the same agreement when the mNIHSS was compared with the original scale. The mNIHSS showed good responsiveness, ie, was useful in differentiating patients likely to hemorrhage or have a good outcome after stroke. The mNIHSS appears to be identical clinimetrically to the original NIHSS when the same data are used for validation and reliability. Power appears to be greater with the mNIHSS with the use of 24-hour end points, suggesting the need for fewer patients in trials designed to detect treatment effects comparable to rtPA. The mNIHSS contains fewer items and might be simpler to use in clinical research trials. Prospective analysis of reliability and validity, with the use of an independently collected cohort, must be obtained before the mNIHSS is used in a research setting.
            Article 0 comments Cited 56 times – based on 0 reviews     Review now
              Bookmark
              • Record: found
              • Abstract: found
              • Article: not found

              Endovascular vs medical management of acute ischemic stroke.

              Ching-Jen Chen, Dale Ding, Robert Starke … (2015)
              To compare the outcomes between endovascular and medical management of acute ischemic stroke in recent randomized controlled trials (RCT).
              Article 0 comments Cited 50 times – based on 0 reviews     Review now
                Bookmark
                All references

                Author and article information

                Journal
                Journal ID (nlm-ta): Asian J Neurosurg
                Journal ID (iso-abbrev): Asian J Neurosurg
                Journal ID (publisher-id): AJNS
                Title: Asian Journal of Neurosurgery
                Publisher: Wolters Kluwer - Medknow (India )
                ISSN (Print): 1793-5482
                ISSN (Electronic): 2248-9614
                Publication date (Print): Jul-Sep 2019
                Volume: 14
                Issue: 3
                Pages: 1040-1043
                Affiliations
                [1] Department of Neurosurgery, Aichi Medical University, Nagakute, Aichi, Japan
                [1 ] Neuroendovascular Therapy Center, Aichi Medical University, Nagakute, Aichi, Japan
                Author notes
                Address for correspondence: Dr. Tomotaka Ohshima, 1-1 Yazakokarimata, Nagakute, Aichi 480-1195, Japan. E-mail: tmtkoh@ 123456gmail.com
                Article
                Publisher ID: AJNS-14-1040
                DOI: 10.4103/ajns.AJNS_28_19
                PMC ID: 6703001
                PubMed ID: 31497161
                SO-VID: 93ff929e-9edd-4381-89c7-27758f236514
                Copyright © Copyright: © 2019 Asian Journal of Neurosurgery
                License:

                This is an open access journal, and articles are distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as appropriate credit is given and the new creations are licensed under the identical terms.

                History
                Categories
                Subject: Case Report

                ScienceOpen disciplines: Surgery
                Keywords: acute ischemic stroke,endovascular treatment,microguidewire,modified pigtail-shape,thrombectomy
                Data availability:
                ScienceOpen disciplines: Surgery
                Keywords: acute ischemic stroke, endovascular treatment, microguidewire, modified pigtail-shape, thrombectomy

                Comments

                Comment on this article

                scite_

                Similar content275

                See all similar

                Cited by3

                See all cited by