Endovascular treatment of intracranial aneurysms using balloon remodeling technique

Endovascular treatment with coils is widely used in the management of intracranial aneurysms. However, this type of treatment can be technically challenging for anatomic reasons, particularly when the neck of the aneurysm is wide or when the dome-to-neck ratio is not favorable. Previous studies described the remodeling technique for extending the indications and feasibility of the endovascular treatment to wide-neck intracranial aneurysms. In remodeling technique, a non-detachable balloon is temporarily inflated in front of the neck of the aneurysm during each coil placement. At the end of the procedure, the remodeling balloon is removed and no device is left in place in the parent vessel unless stent placement is subsequently performed. The remodeling technique can be used in all aneurysm locations but is adopted less frequently in anterior communicating and anterior cerebral aneurysms. Studies have also shown adequate aneurysm occlusion is significantly more frequent in the remodeling group. Despite the fact that aneurysms treated by the remodeling technique are different from aneurysms treated with standard coiling, the safety of both techniques is similar with a higher anatomic efficacy of the remodeling technique. Accordingly, wide use of the remodeling technique can be proposed

Role of endovascular treatment in vascular injuries

OBJECTIVE: To evaluate retrospectively the results, complications and follow-up of patients after endovascular treatment of vascular injuries. METHODS: Fifty transcatheter embolisation procedures (TCE) were performed in 46 patients between 1999 and 2008 at the Aga Khan University Hospital, Karachi. Injuries in 14 (30.4%) patients were due to road traffic accident; iatrogenic in 13 (28%); accidental in 6 (13%). Firearms, bomb blasts and earthquake contributed to injuries in 8(17%), 4(8.8%) and 1(2.2%) patients respectively. All patients underwent angiography and had evidence of either active haemorrhage, pseudo-aneurysm, abnormal vascularity or arteriovenous fistula. Followup ranged from 1 day to 6 years with mean of 10.5 months. Medical record files, lab results and imaging reports were utilised for the study. Procedure was declared as technically successful when there was cessation of extravasation, occlusion of fistula or exclusion of pseudo-aneurysm in the post-embolisation angiograms. Treatment was deemed clinically successful if there was resolution of the indication for which the procedure was done. RESULTS: Transcatheter embolisation was technically successful in occluding vascular lesions in all 46 (100%) patients. Lesions recurred in 4 (9%) patients who underwent initially successful TCE. These patients were treated effectively with repeated TCE. Three patients died during the same hospital stay and 3 patients died after being discharged from the hospital. All these patients were treated successfully with TCE and had factors other then TCE contributing to their mortality. CONCLUSION: Transcatheter embolisation for vascular injuries was found to be a satisfactory procedure, with low morbidity and mortality rates

Research Output of Army Medical College, Pakistan: A Bibliometric Study based on Scopus Database

Purpose: The purpose of this study is to carry-out bibliometric analysis of publications by authors associated with Army Medical College, Pakistan using Scopus database. Methodology: All publications, published from 1977 to 2018, by the authors affiliated with Army Medical College, Pakistan were retrieved from Scopus database. The bibliographic records of all retrieved publications were downloaded in the Microsoft Excel. The data regarding phase-wise growth of publications; citations; subject distribution; the most prolific authors and journals; and research collaboration within Pakistan and abroad were analyzed and presented in tabular form. Findings: A total of 417 publications were found with an average of 9.92 papers per year. However, these publications were cited 2,524 times with a citation impact of 6.05 citation per year. Out of 417, 352 (68%) publications were published on Medicine. The most prolific author was Abdul Khaliq Naveed and Journal of College of Physicians and Surgeons Pakistan and Journal of Pakistan Medical Association were the most preferred journal with 84 and 82 publications respectively. The authors mostly collaborated with National University of Sciences and Technology within Pakistan and two Saudi universities outside Pakistan. Conclusion: Escalation in scientific productivity at Army Medical College was observed during the last decade. However, there is an urgent need to amplify research activities and collaboration with international organizations manifold to respectably stand with the world

Review of Manuscripts on “Library Marketing” Published in Library Philosophy and Practice (e-journal)

Objective: The assessment of scholarly communication on the particular area of knowledge has been used frequently by the subject specialists. The current study aimed to observe the coverage of articles on the subject area of “Library Marketing” in one of the library and information science journals, Library Philosophy and Practice (e-journal). Methods: Data search was performed on the Elsevier’s Scopus database on October 10, 2021. The name of the journal was written in the main search box after selecting the “source title” option and in the second search box, “library marketing” was written to refine the search result. The bibliographic records of the retrieved dataset were downloaded for the quantitative analysis. Microsoft Excel and VOS viewer software were used. Results: A total of 78 records on “library marketing” were found in the Library Philosophy and Practice (e-journal), published between 2002 to October 10, 2021. The majority of the articles (62%) were published during the last three years (2019-2021). All the selected articles gained 139 citations, and 7 articles achieved the h-index scale. One hundred and sixty-five authors affiliated with 99 organizations of the 15 countries contributed to these articles. One-third of the articles were contributed by Nigerian researchers. “Marketing” and “Library Services” were found to be the prominent keywords. Conclusion: The study identified the literature on library marketing published in Library Philosophy and Practice (e-journal) and create awareness among the potential researchers as well as library and information science professionals in understanding the subject coverage and its scope

Radiologic Clinics of North America; Bibliometric Spectrum of Publications from 2000 to 2019.

Aim: The aim of this study is to present the bibliometric analysis of papers published in Radiologic Clinic of North America (RCNA) from 2000 to 2019. Design/Methodology: The Elsevier’s Scopus database was used as a source to retrieve the bibliographic records published from 2000 to 2019. The data was evaluated on the following parameters, growth of publications and their citation impact by year, most contributing institutions and countries, productive authors, authorship patterns, most-cited papers, frequently used keywords and flow of knowledge. Only original and review articles were used for analysis, other types of documents were excluded. Microsoft Excel, SPSS and VOSviewer software were used for data analysis. Results: A fluctuation was detected in the number of publications. A total of 1,401 papers were selected, of whom 1,241 (88.57%) were review articles and 160 (11.42%) were research articles. The mean and standard deviation (SD) scores of papers were 70 and 6.15 respectively. All selected papers received 34,145 citations with a mean score of 24.37 citations per paper (SD 1019.55). The study found that all top-10 contributing institutions belonged to the USA and the USA was also found most productive country. Out of the ten-most productive authors, nine were affiliated with USA and two-author pattern found a most preferred pattern. Conclusion: The finding of this study exposed that the USA is the most productive country in terms of authors, institutions and even in citing the literature of RCNA

Post traumatic avulsion of lumbar artery: a rare cause of retroperitoneal haemorrhage treated by glue embolization

Lumbar arterial injury after trauma is a rare cause of significant retroperitoneal haemorrhage. Early diagnosis followed by endovascular transcatheter embolization is a very effective treatment to control bleeding in patients who do not respond to conservative management. We present a case of post traumatic avulsion of left fourth lumbar artery which was successfully treated with percutaneous transcatheter arterial embolization with glue

Non-surgical retrieval of dislodged or misplaced intravascular/ ndoluminal foreign objects.

Abstract Interventional procedures involving the use of intravascular or endoluminal objects have rapidly increased over the years with advancements in minimally invasive techniques. These foreign objects such as endovascular coils, guidewires, and endoluminal catheters, if lost or malpositioned, are a potential threat, which can result in complications such as embolization, perforation, infections, and arrhythmias. Therefore, timely removal of these foreign bodies is essential. In this technical report, we have described our experience with different scenarios in which percutaneous interventional techniques for retrieval of such foreign bodies were performed at our institute

Analysis of the 100 most-cited papers in one of the leading Library and Information Science journals “Scientometrics”

Scientometrics is one of the leading peer-reviewed journals in the field of Library and Information Science (LIS). The present study is aimed to evaluate the salient characteristics of the 100 most-cited papers of Scientometrics. The bibliographic data of most cited papers were extracted from the Scopus database. The attributes of selected papers were analyzed by using Microsoft Excel, VOSviewer, and Biblioshiny software. These papers were published between 1979 and 2017. All papers gained citations with a mean ratio of 332.86 citations per paper and the range of citations varies from 155 to 3,222. These papers were contributed by 221authors, with an average of 2.21 authors per paper. Thirty-two papers were contributed by a single author pattern and these papers gained a higher proportion of citations as compared to multi-author papers. Likewise, the open accessed papers gained more citations as compared to subscription-based papers. Glänzel W. emerged as the most prolific author while the United States contributed the highest number of papers. This paper also highlighted the frequently used keywords and the analysis of cited references. Scientometrics is an important journal that has been providing a platform to LIS researchers, focusing on research evaluation, altmetrics, bibliometrics, and citation analysis, etc. The findings of the current study assist to recognize the publication trends and research markers in the area of scientometrics

Cerebral venous system anatomy

Cerebral venous system can be divided into a superficial and a deep system. The. superficial system comprises of sagittal sinuses and cortical veins and these drain superficial surfaces of both cerebral hemispheres. The deep system comprises of lateral sinus, straight sinus and sigmoid sinus along with draining deeper cortical veins. Both these systems mostly drain themselves into internal jugular veins. The veins draining the brain do not follow the same course as the arteries that supply it. Generally, venous blood drains to the nearest venous sinus, except in the case of that draining from the deepest structures, which drain to deep veins. These drain, in turn, to the venous sinuses. The superficial cerebral veins can be subdivided into three groups. These are interlinked with anastomotic veins of Trolard and Labbe. However, the superficial cerebral veins are very variable. They drain to the nearest dural sinus. Thus the superolateral surface of the hemisphere drains to the superior sagittal sinus while the posteroinferior aspect drains to the transverse sinus. The veins of the posterior fossa are variable in course and angiographic diagnosis of their occlusion is extremely difficult. Blood from the deep white matter of the cerebral hemisphere and from the basal ganglia is drained by internal cerebral and basal veins, which join to form the great vein of Galen that drains into the straight sinus. With the exception of wide variations of basal vein, the deep system is rather constant compared to the superficial venous system. Hence their thrombosis is easy to recognize