The Role of Neuroendovascular Therapy for the Treatment of Brain Arteriovenous Malformations

Neurosurgery ◽  
2006 ◽  
Vol 59 (suppl_5) ◽  
pp. S3-163-S3-177 ◽  
Author(s):  
David Fiorella ◽  
Felipe C. Albuquerque ◽  
Henry H. Woo ◽  
Cameron G. McDougall ◽  
Peter A. Rasmussen
Keyword(s):  
Arteriovenous Malformations ◽  
Treatment Plan ◽  
Multimodality Treatment ◽  
Clear Understanding ◽  
Technical Application ◽  
Embolic Agents ◽  
History Of ◽  
Application Potential ◽  
Cumulative Risks

Abstract NEUROENDOVASCULAR EMBOLIZATION REPRESENTS a critical component of the multidisciplinary management of cerebral arteriovenous malformations. Safe and effective embolization may be performed only in the context of a well-designed, rational treatment plan that is fundamentally based on a clear understanding of the natural history of the lesion, as well as the cumulative risks of multimodality treatment. This article outlines the role of neuroendovascular embolization in arteriovenous malformation therapy with a specific emphasis on decision making in the context of formulating a treatment plan. The authors also provide a summary of the available embolic agents and their technical application, potential intraprocedural and periprocedural complications, and postprocedural management.

Revisiting Companionship and the Socio-Economy of the Islamic Guilds

2021 ◽  
pp. 112-147
Author(s):  
Hasan Shahpari ◽  
Tahereh Alavi Hojjat
Keyword(s):  
Islamic Banking ◽  
Clear Understanding ◽  
Banking And Finance ◽  
Legal Foundation ◽  
History Of ◽  
Conventional Banks ◽  
Islamic Economic ◽  
Craft Guilds ◽  
The Relationship

This chapter is an introduction to the history of the formation of guilds and how they connect them to the religious and social structures that molded them. The craft-guilds are one of the most interesting and characteristic phenomena of medieval Muslim civilization. The guild in Muslim life was built essentially on the idea of the market and based on the needs of the guildsmen. Many different countries officially claim their commitment to Islam and Islamic economics. However, Islam and Islamic economic systems differ significantly from one country to another. Analysis of the Islamic economic system is impossible without a clear understanding of the legal parameters that shaped such a system. The legal foundation of the Islamic society, known as Shari'a, is considered eternally valid and applicable to all times and places. Islamic laws not only provide society with collections of laws and prescriptions which indicate the Islamic path, they also focus on specific human activities and classify them according to their degree of desirability from God's perspective. Different viewpoints on the relationship between religion, culture, and economic performance are investigated here. Finally, the role of the central bank and Islamic banking and finance will be discussed in detail. While Islamic banks play roles similar to conventional banks, fundamental differences exist between the two models. The main difference between Islamic and conventional banks is that the former operate in accordance with the rules of Shari'a, the legal code of Islam. The central concept in Islamic banking and finance is justice, which is achieved mainly through the sharing of risk. Stakeholders are supposed to share profits and losses, and charging interest is prohibited.

Revisiting Companionship and the Socio-Economy of the Islamic Guilds

2016 ◽  
pp. 198-233
Keyword(s):  
Islamic Banking ◽  
Clear Understanding ◽  
Banking And Finance ◽  
Legal Foundation ◽  
History Of ◽  
Conventional Banks ◽  
Islamic Economic ◽  
Craft Guilds ◽  
The Relationship

This chapter is an introduction to the history of the formation of guilds and how they connect them to the religious and social structures that molded them. The craft-guilds are one of the most interesting and characteristic phenomena of medieval Muslim civilization. The guild in Muslim life was built essentially on the idea of the market and based on the needs of the guildsmen. Many different countries officially claim their commitment to Islam and Islamic economics. However, Islam and Islamic economic systems differ significantly from one country to another. Analysis of the Islamic economic system is impossible without a clear understanding of the legal parameters that shaped such a system. The legal foundation of the Islamic society, known as Shari'a, is considered eternally valid and applicable to all times and places. Islamic laws not only provide society with collections of laws and prescriptions which indicate the Islamic path, they also focus on specific human activities and classify them according to their degree of desirability from God's perspective. Different viewpoints on the relationship between religion, culture, and economic performance are investigated here. Finally, the role of the central bank and Islamic banking and finance will be discussed in detail. While Islamic banks play roles similar to conventional banks, fundamental differences exist between the two models. The main difference between Islamic and conventional banks is that the former operate in accordance with the rules of Shari'a, the legal code of Islam. The central concept in Islamic banking and finance is justice, which is achieved mainly through the sharing of risk. Stakeholders are supposed to share profits and losses, and charging interest is prohibited.

Advances in Radiosurgery for Arteriovenous Malformations of the Brain

Neurosurgery ◽  
2014 ◽  
Vol 74 (suppl_1) ◽  
pp. S50-S59 ◽  
Author(s):  
Benjamin A. Rubin ◽  
Andrew Brunswick ◽  
Howard Riina ◽  
Douglas Kondziolka
Keyword(s):  
Natural History ◽  
Stereotactic Radiosurgery ◽  
Endovascular Therapy ◽  
Arteriovenous Malformations ◽  
Morbidity And Mortality ◽  
Cerebral Arteriovenous Malformations ◽  
History Of ◽  
The Brain ◽  
Management Algorithms

Abstract Arteriovenous malformations of the brain are a considerable source of morbidity and mortality for patients who harbor them. Although our understanding of this disease has improved, it remains in evolution. Advances in our ability to treat these malformations and the modes by which we address them have also improved substantially. However, the variety of patient clinical and disease scenarios often leads us into challenging and complex management algorithms as we balance the risks of treatment against the natural history of the disease. The goal of this article is to provide a focused review of the natural history of cerebral arteriovenous malformations, to examine the role of stereotactic radiosurgery, to discuss the role of endovascular therapy as it relates to stereotactic radiosurgery, and to look toward future advances.

Curing arteriovenous malformations using embolization

2014 ◽  
Vol 37 (3) ◽  
pp. E19 ◽  
Author(s):  
Matthew B. Potts ◽  
Daniel W. Zumofen ◽  
Eytan Raz ◽  
Peter K. Nelson ◽  
Howard A. Riina
Keyword(s):  
Arteriovenous Malformations ◽  
Endovascular Embolization ◽  
Cerebral Arteriovenous Malformations ◽  
Curative Intent ◽  
The Past ◽  
Embolic Agents ◽  
Liquid Embolic ◽  
Diagnostic Angiography ◽  
Endovascular Technology

Endovascular embolization is typically reserved as an adjuvant therapy in the management of cerebral arteriovenous malformations (AVMs), either for preoperative devascularization or preradiosurgical volume reduction. Curative embolization plays a limited role in AVM treatment but several studies have shown that it is possible, especially with later-generation liquid embolic agents. Given the complexity of AVM anatomy and the recent controversies over the role of any intervention in AVM management, it is critical that the cerebrovascular community better define the indications of each treatment modality to provide quality AVM management. In this review, the authors evaluate the role of curative AVM embolization. Important considerations in the feasibility of curative AVM embolization include whether it can be performed reliably and safely, and whether it is a durable cure. Studies over the past 20 years have begun to define the anatomical factors that are amenable to complete endovascular occlusion, including size, feeding artery anatomy, AVM morphology, and endovascular accessibility. More recent studies have shown that highly selected patients with AVMs can be treated with curative intent, leading to occlusion rates as high as 100% of such prospectively identified lesions with minimal morbidity. Advances in endovascular technology and techniques that support the efficacy and safety of curative embolization are discussed, as is the importance of superselective diagnostic angiography. Finally, the durability of curative embolization is analyzed. Overall, while still unproven, endovascular embolization has the potential to be a safe, effective, and durable curative treatment for select AVMs, broadening the armamentarium with which one can treat this disease.

scholarly journals Birth and Growth of Neuroimaging and Vascular Intervention at Sree Chitra Tirunal Institute for Medical Sciences & Technology, Thiruvananthapuram—Part II

2021 ◽  
Author(s):  
Rajanikanth Rao Vedula ◽  
Ravi Mandalam Kolathu
Keyword(s):  
Arteriovenous Malformations ◽  
Interventional Procedures ◽  
Sree Chitra Tirunal Institute ◽  
Medical Sciences ◽  
Selective Embolization ◽  
Vascular Intervention ◽  
Palliative Procedure ◽  
History Of Development ◽  
Embolic Agents ◽  
History Of

AbstractThis is the second part of the two-part paper on the history of development of neuroradiology at the Sree Chitra Tirunal Institute of Medical Sciences and Technology, Thiruvananthapuram. In this part, the authors describe the evolution of interventional procedures at their institute from the initial techniques of free-flow embolization as a palliative procedure for large arteriovenous malformations (AVMs) to the more refined techniques of selective embolization using microcatheters, calibrated leak balloons and liquid polymerizing embolic agents. The authors acknowledge the immense encouragement and support provided to them by the French neurointervention pioneers Prof. Luc Picard and Prof. Jacques Moret in this endeavor.

The Role of Embolic Agents in Endovascular Treatment of Intracranial Arteriovenous Malformations and Tumors

2005 ◽  
pp. 187-207 ◽  
Author(s):  
Ricardo A. Hanel ◽  
Bernard R. Bendok ◽  
Jay U. Howington ◽  
Elad I. Levy ◽  
Lee R. Guterman ◽  
...  
Keyword(s):  
Endovascular Treatment ◽  
Arteriovenous Malformations ◽  
Intracranial Arteriovenous Malformations ◽  
Embolic Agents

Elaborating the role of reflection and individual differences in the study of folk-economic beliefs

2018 ◽  
Vol 41 ◽  
Author(s):  
Kevin Arceneaux
Keyword(s):  
Decision Making ◽  
Individual Differences ◽  
Cognitive Processes ◽  
Evolutionary History ◽  
Behavioral Responses ◽  
History Of ◽  
Economic Beliefs

AbstractIntuitions guide decision-making, and looking to the evolutionary history of humans illuminates why some behavioral responses are more intuitive than others. Yet a place remains for cognitive processes to second-guess intuitive responses – that is, to be reflective – and individual differences abound in automatic, intuitive processing as well.

Case Exercise: Toxic Exposure-Related Illness: Causation, Diagnosis, and Permanent Impairment

2007 ◽  
Vol 12 (2) ◽  
pp. 4-8
Author(s):  
Frederick Fung
Keyword(s):  
Concentration Level ◽  
Treatment Plan ◽  
Toxic Exposure ◽  
Dose Response Relationship ◽  
Specialty Board ◽  
History Of ◽  
Subjective Complaints ◽  
Based Medicine ◽  
Illness Causation ◽  
Rule Out

Abstract A diagnosis of toxic-related injury/illness requires a consideration of the illness related to the toxic exposure, including diagnosis, causation, and permanent impairment; these are best performed by a physician who is certified by a specialty board certified by the American Board of Preventive Medicine. The patient must have a history of symptoms consistent with the exposure and disease at issue. In order to diagnose the presence of a specific disease, the examiner must find subjective complaints that are consistent with the objective findings, and both the subjective complaints and objective findings must be consistent with the disease that is postulated. Exposure to a specific potentially causative agent at a defined concentration level must be documented and must be sufficient to induce a particular pathology in order to establish a diagnosis. Differential diagnoses must be entertained in order to rule out other potential causes, including psychological etiology. Furthermore, the identified exposure at the defined concentration level must be capable of causing the diagnosis being postulated before the examiner can conclude that there has been a cause-and-effect relationship between the exposure and the disease (dose-response relationship). The evaluator's opinion should make biological and epidemiological sense. The treatment plan and prognosis should be consistent with evidence-based medicine, and the rating of impairment must be based on objective findings in involved systems.

The role of a family history of adenocarcinomas in patients with Barrett oesophagus

2001 ◽  
Vol 120 (5) ◽  
pp. A442-A442
Author(s):  
P TSIBOURIS ◽  
M HENDRICKSE ◽  
P ISAACS
Keyword(s):  
Family History ◽  
History Of ◽  
Barrett Oesophagus

Protective Factors and Suicidality in Members of Arab Kindred

Crisis ◽  
2012 ◽  
Vol 33 (2) ◽  
pp. 80-86 ◽  
Author(s):  
Sami Hamdan ◽  
Nadine Melhem ◽  
Israel Orbach ◽  
Ilana Farbstein ◽  
Mohammad El-Haib ◽  
...  
Keyword(s):  
Risk Factors ◽  
Protective Factors ◽  
Suicidal Behavior ◽  
Composite International Diagnostic Interview ◽  
Diagnostic Interview ◽  
Suicidal Risk ◽  
Arab Population ◽  
Psychiatric Interview ◽  
History Of

Background: Relatively little is known about the role of protective factors in an Arab population in the presence of suicidal risk factors. Aims: To examine the role of protective factors in a subsample of in large Arab Kindred participants in the presence of suicidal risk factors. Methods: We assessed protective and risk factors in a sample of 64 participants (16 suicidal and 48 nonsuicidal) between 15 and 55 years of age, using a comprehensive structured psychiatric interview, the Composite International Diagnostic Interview (CIDI), self-reported depression, anxiety, hopelessness, impulsivity, hostility, and suicidal behavior in first-degree and second-relatives. We also used the Religiosity Questionnaire and suicide attitude (SUIATT) and multidimensional perceived support scale. Results: Suicidal as opposed to nonsuicidal participants were more likely to have a lifetime history of major depressive disorder (MDD) (68.8% vs. 22.9% χ2 = 11.17, p = .001), an anxiety disorder (87.5% vs. 22.9, χ2 = 21.02, p < .001), or posttraumatic stress disorder (PTSD) (25% vs. 0.0%, Fisher’s, p = .003). Individuals who are otherwise at high risk for suicidality have a much lower risk when they experience higher perceived social support (3.31 ± 1.36 vs. 4.96 ± 1.40, t = 4.10, df = 62, p < .001), and they have the view that suicide is somehow unacceptable (1.83 ± .10 vs. 1.89 ± .07, t = 2.76, df = 60, p = .008). Conclusions: Taken together with other studies, these data suggest that the augmentation of protective factors could play a very important role in the prevention of incidental and recurrent suicidal behavior in Arab populations, where suicidal behavior in increasing rapidly.

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