scholarly journals Evolution of endovascular therapy for aneurysm treatment

2005 ◽  
Vol 18 (2) ◽  
pp. 1-4 ◽  
Author(s):  
Yassine Kanaan ◽  
David Kaneshiro ◽  
Kenneth Fraser ◽  
David Wang ◽  
Giuseppe Lanzino
Keyword(s):  
Endovascular Treatment ◽  
19Th Century ◽  
Endovascular Therapy ◽  
Intracranial Aneurysms ◽  
Therapeutic Option ◽  
Historical Overview ◽  
Stepping Stones ◽  
Technological Advances ◽  
The 19Th Century ◽  
Work Done

The endovascular treatment of intracranial aneurysms has recently become an established therapeutic option. The foundation of this treatment modality was laid by the work done in ground-breaking cases, combined with technological advances since the first half of the 19th century. In this historical overview the authors describe the steps taken by the early pioneers and the results of their work, which was often done under challenging circumstances. The work of these predecessors established the stepping-stones for constant development and refinement for those who have come after them, eventually evolving into the procedures used today. Endovascular treatment of intracranial aneurysms is only possible because of the work of these innovators.

Abstract WP87: Endovascular Treatment of Very Small Ruptured Intracranial Aneurysms: Complications, Occlusion Rates and Prediction of Outcome

Stroke ◽  
2013 ◽  
Vol 44 (suppl_1) ◽  
Author(s):  
Robert M Starke ◽  
Nohra Chalouhi ◽  
Muhammad S Ali ◽  
David L Penn ◽  
Stavropoula I Tjoumakaris ◽  
...  
Keyword(s):  
Multivariate Analysis ◽  
Endovascular Treatment ◽  
Endovascular Therapy ◽  
Intracranial Aneurysms ◽  
Aneurysm Rupture ◽  
Post Treatment ◽  
Favorable Outcome ◽  
Predictors Of Outcome ◽  
Aneurysm Size ◽  
Ruptured Intracranial Aneurysms

Purpose: In this study we assess predictors of outcome following endovascular treatment of small ruptured intracranial aneurysms (SRA). Methods: Between 2004 and 2011, 91 patients with SRA (≤ 3 mm) were treated at our institution. Multivariate analysis was carried out to assess predictors of endovascular related complications, aneurysm obliteration (>95%), recanalization, and favorable outcome (Glasgow Outcome Scale 3-5). Results: Endovascular treatment was aborted in 9 of 91 patients (9.9%). Procedure-related complications occurred in 8 of 82 patients (9.8%) of which 5 were transient and 3 were permanent. Three patients (3.7%) undergoing endovascular therapy experienced an intra-procedural aneurysm rupture. Three of 9 patients (33.3%) treated with stent or balloon assisted coiling experienced peri-procedural complications compared to 5 of 73 patients (6.8%) receiving only coils or Onyx (p=0.039). There were no procedural deaths or rehemorrhages. Rates of recanalization and retreatment were 18.2% and 12.7%, respectively. No factors predicted initial occlusion or recanalization. In multivariate analysis pre-treatment factors predictive of favorable outcome included younger age (OR=0.94; 95% CI 0.91-0.99, p=0.017), larger aneurysm size (OR=3.4; 95% CI 1.02-11.11, p=0.045), Hunt and Hess grade (OR=0.38; 95% CI 0.19-0.75, p=0.005), and location (OR=5.12; 95% CI 1.29-20.25, p=0.02). When assessing treatment and post-treatment variables, vasospasm was the only additional covariate predictive of poor outcome (OR=5.90; 95% CI 1.34=25.93, p=0.019). Conclusions: The majority of SRA can be treated with endovascular therapy and limited complications. Overall predictors of outcome for patients undergoing endovascular treatment of SRA include age, aneurysm size, Hunt and Hess grade, location, and post-treatment vasospasm.

scholarly journals Institutional landmarks in Brazilian research on soil erosion: a historical overview

2013 ◽  
Vol 37 (6) ◽  
pp. 1431-1440 ◽  
Author(s):  
Tiago Santos Telles ◽  
Sonia Carmela Falci Dechen ◽  
Maria de Fátima Guimarães
Keyword(s):  
Soil Erosion ◽  
19Th Century ◽  
Soil Degradation ◽  
Agricultural Land ◽  
Agricultural Research ◽  
Educational Institutions ◽  
Historical Overview ◽  
Graduate Studies ◽  
The 19Th Century ◽  
Soil And Water

The problem of soil erosion in Brazil has been a focus of agricultural scientific research since the 19th century. The aim of this study was to provide a historical overview of the institutional landmarks which gave rise to the first studies in soil erosion and established the foundations of agricultural research in Brazil. The 19th century and beginning of the 20th century saw the founding of a series of institutions in Brazil, such as Botanical Gardens, executive institutions, research institutes, experimental stations, educational institutions of agricultural sciences, as well as the creation and diversification of scientific journals. These entities, each in its own way, served to foster soil erosion research in Brazil. During the Imperial period (1808-1889), discussions focused on soil degradation and conserving the fertility of agricultural land. During the First Republic (1889-1930), with the founding of various educational institutions and consolidation of research on soil degradation conducted by the Agronomic Institute of Campinas in the State of São Paulo, studies focused on soil depletion, identification of the major factors causing soil erosion and the measures necessary to control it. During the New State period (1930-1945), many soil conservation practices were developed and disseminated to combat erosion and field trials were set up, mainly to measure soil and water losses induced by hydric erosion. During the Brazilian New Republic (1945-1964), experiments were conducted throughout Brazil, consolidating soil and water conservation as one of the main areas of Soil Science in Brazil. This was followed by scientific conferences on erosion and the institutionalization of post-graduate studies. During the Military Regime (1964-1985), many research and educational institutions were founded, experimental studies intensified, and coincidently, soil erosion reached alarming levels which led to the development of the no-tillage system.

Galatea II: Reborn of a Classic

2020 ◽  
Author(s):  
María Castro Ruiz ◽  
Rodrigo Perez Fernandez
Keyword(s):  
19Th Century ◽  
Military Training ◽  
The United Kingdom ◽  
General Arrangement ◽  
Technological Advances ◽  
Merchant Ship ◽  
Operational Life ◽  
History Of ◽  
The 19Th Century ◽  
Naval Officers

The history of the Galatea dates back to the 19th century when in 1896 she was launched and Christianised as Glenlee at Glasgow. She sailed as a merchant ship in the United Kingdom and Italy during the first period of her operational life, and was later adapted with mechanical propulsion. After several circumnavigations, in 1922 she was renamed Galatea to serve in the Spanish Navy, where she remained in service for 60 years. Since 1993 she has been resting in her hometown in Scotland as a museum ship. As a tribute to the extensive and remarkable history of this ship, and in order to recover and preserve the naval tradition in Spain, it has been proposed to design a ship with the same morphology as the Glenlee to stoke the spirit of the Galatea and inspire the construction of new sailing ships. She will be adapted as a military training ship of the Spanish Navy. Therefore, studies in stability, propulsion, general arrangement and structural calculations will be necessary to validate the transformation of the Glenlee into a new Galatea II complying with mandatory regulations and technological advances that will encourage its operation to the future naval officers of the Spanish Navy.

The Drawings and the Modine of Francesco Pieroni for the Ministero delle Finanze in Rome

2019 ◽  
pp. 242-272
Author(s):  
Liliana Ninarello
Keyword(s):  
19Th Century ◽  
16Th Century ◽  
Archival Research ◽  
Construction Companies ◽  
Different Types ◽  
The 19Th Century ◽  
Work Done ◽  
Real Scale

The main focus of this chapter is the highly valued work done by the architect Francesco Pieroni at the Ministero delle Finanze in Rome. This contribution can to attribute to Pieroni various drawings and numerous modine, i.e. real scale cardboard templates of various shapes used in the realization phases of the mouldings. Pieroni's activity represents, in the Roman context, one of the first applications of typical 16th century mouldings, to modern and prefabricated metal bar structures, spreading in the 70's of the 19th century. The construction companies were resilient to agree for changes in building techniques due to a lack of expertise. The realization of the Ministero is a case study of this phenomenon. The archival research developed casts new light on the numerous modifications carried out by Peroni during construction phases, which demonstrate the accuracy employed by the architect in designing the stuccos. The chapter analyses two different types of archive documents: the report Spoglio modificazioni lavori di stucco, and the examples of modine authored by Pieroni.

The type status of collections made by Adolfo Moller and Francisco Quintas in the floras of São Tomé and Príncipe

Phytotaxa ◽  
2019 ◽  
Vol 425 (2) ◽  
pp. 87-95
Author(s):  
ESTRELA FIGUEIREDO ◽  
GIDEON F. SMITH
Keyword(s):  
19Th Century ◽  
Type Specimens ◽  
Numbering System ◽  
Label Data ◽  
Sao Tome And Principe ◽  
Large Numbers ◽  
Considerable Confusion ◽  
Taxonomic Studies ◽  
The 19Th Century ◽  
Work Done

The numbering systems used by Júlio Henriques when specimens were prepared for distribution as donations or for determination from the Herbarium COI (Coimbra, Portugal) are addressed, with particular emphasis on the collections made by Adolfo Moller and Francisco Quintas on São Tomé and Príncipe in the 19th century. The conflicting numbers and label data that are found on these collections have been the source of considerable confusion in determining what constitute duplicates, and in many cases the type status of such collections. An understanding of the administrative methodology and numbering system used by Henriques is critical in taxonomic studies on the flora of São Tomé and Príncipe and adjacent areas, as the early collections inevitably included large numbers of type specimens. Previous work done by Arthur Exell to address the issue is analysed and explained, and examples are presented.

scholarly journals Preliminary evaluation of the endovascular treatment of intracranial aneurysms with detachable coils in vigil patients

2006 ◽  
Vol 64 (4) ◽  
pp. 899-904
Author(s):  
José Roberto Falco Fonseca ◽  
Nitamar Abdala ◽  
Dárcio Roberto Nalli ◽  
Marcos Hideki Idagawa ◽  
João de Deus da Costa Alves Jr ◽  
...  
Keyword(s):  
Endovascular Treatment ◽  
General Anaesthesia ◽  
Intracranial Aneurysms ◽  
Clinical Symptoms ◽  
Therapeutic Option ◽  
Mortality Rates ◽  
Psychological Characteristics ◽  
Preliminary Evaluation ◽  
Detachable Coils

Endovascular treatment of intracranial aneurysms with coil embolization became the most important therapeutic option with better morbidity and mortality rates and quality of life. Following immobility, patients are treated with general anaesthesia. OBJECTIVE: To test viability of endovascular treatment on wake patients. METHOD: Considering clinical symptoms, psychological characteristics and aneurysmal morphology, four patients with five intracranial aneurysms were selected. RESULTS: Four among five cases were completed with this technique. Patient 1 was partially treated after 75 minutes presenting vesical stress. Patient 2 presented subarachnoid hemorrhage after aneurysmal re-rupture, and the procedure was completed under general anaesthesia. The other three patients presented no intercurrences during the treatment. CONCLUSION: Endovascular treatment on wake patients with intracranial aneurysm can be an alternative to a selected group of patients.

Endovascular treatment of intracranial aneurysms as the first thérapeutic option

2007 ◽  
Vol 34 (4) ◽  
pp. 250-259 ◽  
Author(s):  
B. Lubicz ◽  
D. Balériaux ◽  
F. Lefranc ◽  
J. Brotchi ◽  
M. Bruneau ◽  
...  
Keyword(s):  
Endovascular Treatment ◽  
Intracranial Aneurysms ◽  
Therapeutic Option

scholarly journals Religious Ferment among the Indians of British Guiana at the Turn of the 19th Century

1978 ◽  
Vol 4 ◽  
pp. 97-125
Author(s):  
Aleksander Posern-Zieliński
Keyword(s):  
19Th Century ◽  
English Abstract ◽  
Religious Movement ◽  
Historical Overview ◽  
British Guiana ◽  
Abstract Description ◽  
New Ideas ◽  
Colonization Process ◽  
The 19Th Century

This article is a the historical overview of local socio-religious syncretic movements in Guiana. Both protestant Christianization and the complex colonization process that resulted in Dutch and British presence were crucial to the emergence of these new ideas. First syncretic beliefs linked the figure of Christ with a local mythical being called Makunaima. This kind of belief appears to start in 1840's with the Awakaipu, a native man who was able to gather some followers. By the end of the 19th Century roots of a new religious movement, named the Hallelujah, started to develop independently. English abstract/description written by Michał Gilewski

Historical and Sociolinguistic Background

2020 ◽  
pp. 6-26
Author(s):  
Wilson McLeod
Keyword(s):  
19Th Century ◽  
Middle Ages ◽  
Large Scale ◽  
18Th Century ◽  
Language Shift ◽  
Historical Overview ◽  
Scale Removal ◽  
12Th Century ◽  
The 19Th Century ◽  
Different Parts

This chapter gives a historical overview of Gaelic in Scotland, including an analysis of its spread to different parts of Scotland in the Middle Ages and the trajectory of demographic decline and language shift since the 18th century. Gaelic became the language of the first Scottish monarchy (the kingdom of Alba) and was widely spoken across Scotland, but then began to decline in the 12th century and became confined to the mountainous northwest of the country (the Highlands). The language became stigmatised as a language of barbarism and the Gaelic community was economically and socially marginalised. Traditional Gaelic society was shattered in the 18th century, with the repression following the Battle of Culloden (1746), followed by the Highland Clearances of the 19th century, which involved large-scale removal of population. Since the 18th century there has been steady language shift in the Highlands, now reaching the last Gaelic communities. The future of Gaelic as a community language has become very uncertain.

Neues „Jugendrecht“ und Fabrikschutzgesetzgebung im Vormärz. Zur Bedeutung von Normativität für die Entstehung der Lebensphase Jugend

2008 ◽  
Vol 49 (1) ◽  
Author(s):  
Stefan Ruppert
Keyword(s):  
19Th Century ◽  
Legal Capacity ◽  
Gainful Employment ◽  
Life Period ◽  
Military Law ◽  
Definition Of ◽  
The 19Th Century ◽  
Work Done

AbstractIn this paper the author looks at the significance of laws and decrees for the emergence of youth as a proper period of life in the 19th century. On the basis of selected examples from the fields of legal capacity, school legislation and military law, the 19th century legislation for the protection of minors working in factories is placed in a larger context of a new “Youth Legislation”. Thus, the normative definition of youth as a life period has become the precondition for the shift of work done by minors to be placed in the period of gainful employment.

Sign in / Sign up

Export Citation Format

Share Document