An Improved Foundation for the Investigation and Treatment of Gastric Dysrhythmia [PhD Thesis] PDF Download
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Author: Gregory O'Grady
Publisher: Gregory O'Grady
ISBN:
Category :
Languages : en
Pages : 373
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Book Description
Gastric motility disorders remain a complex clinical challenge, and inflict a substantial burden of cost and suffering on society. Gastric contractions are coordinated by an underlying electrical activity, and gastric dysrhythmias are implicated in the pathophysiology of several motility disorders. However, the significance of dysrhythmias remains uncertain, and there are few elective therapies, because current tools to investigate dysrhythmias have low reliability owing to their lack of spatial resolution. This thesis aimed to develop an improved foundation for the investigation and management of gastric dysrhythmia, by advancing and translating high-resolution (HR; multi-electrode) spatiotemporal mapping. The research is a cross-disciplinary program of bioengineering, and basic and clinical electrophysiology. A range of HR mapping devices are first developed and validated for intra-operative gastric mapping, including at open and laparoscopic surgery. Automated signal processing tools are next validated for the efficient, reliable marking, grouping, and mapping of slow wave events, and these tools are integrated into an intuitive software platform. These methodological advances are then applied in a series of experimental studies. The origin and propagation of porcine gastric slow wave activity is defined, followed by clinical translation with the first spatiotemporal analysis of normal human gastric slow wave propagation. The methods are then applied to define new patterns and mechanisms of gastric dysrhythmia, initially in a porcine model, including the first demonstration of how rapid, high-amplitude circumferential propagation emerges during dysrhythmias. The first clinical study applying HR electrical mapping is then presented, performed on a cohort of patients with diabetic and idiopathic gastroparesis, revealing new patterns of human dysrhythmia. A new classification scheme for abnormalities of human gastric slow wave initiation and conduction is proposed. Finally, the evidence for high-frequency gastric electrical stimulation is reviewed, prior to the presentation of a new 'entrainment mapping' method for better assessing gastric pacing protocols. In total, this work constitutes a coordinated series of advances that offer a strengthened foundation for investigating and managing gastric electrical abnormalities. It is hoped that these new methods and findings will translate into future clinical advances, to improve the diagnosis and treatment of these complex patient populations.
![An Improved Foundation for the Investigation and Treatment of Gastric Dysrhythmia [PhD Thesis] PDF](https://books.google.com/books/content/images/frontcover/R-MBjatgkuIC?fife=w80-h100)
Author: Gregory O'Grady
Publisher: Gregory O'Grady
ISBN:
Category :
Languages : en
Pages : 373
Get Book Here
Book Description
Gastric motility disorders remain a complex clinical challenge, and inflict a substantial burden of cost and suffering on society. Gastric contractions are coordinated by an underlying electrical activity, and gastric dysrhythmias are implicated in the pathophysiology of several motility disorders. However, the significance of dysrhythmias remains uncertain, and there are few elective therapies, because current tools to investigate dysrhythmias have low reliability owing to their lack of spatial resolution. This thesis aimed to develop an improved foundation for the investigation and management of gastric dysrhythmia, by advancing and translating high-resolution (HR; multi-electrode) spatiotemporal mapping. The research is a cross-disciplinary program of bioengineering, and basic and clinical electrophysiology. A range of HR mapping devices are first developed and validated for intra-operative gastric mapping, including at open and laparoscopic surgery. Automated signal processing tools are next validated for the efficient, reliable marking, grouping, and mapping of slow wave events, and these tools are integrated into an intuitive software platform. These methodological advances are then applied in a series of experimental studies. The origin and propagation of porcine gastric slow wave activity is defined, followed by clinical translation with the first spatiotemporal analysis of normal human gastric slow wave propagation. The methods are then applied to define new patterns and mechanisms of gastric dysrhythmia, initially in a porcine model, including the first demonstration of how rapid, high-amplitude circumferential propagation emerges during dysrhythmias. The first clinical study applying HR electrical mapping is then presented, performed on a cohort of patients with diabetic and idiopathic gastroparesis, revealing new patterns of human dysrhythmia. A new classification scheme for abnormalities of human gastric slow wave initiation and conduction is proposed. Finally, the evidence for high-frequency gastric electrical stimulation is reviewed, prior to the presentation of a new 'entrainment mapping' method for better assessing gastric pacing protocols. In total, this work constitutes a coordinated series of advances that offer a strengthened foundation for investigating and managing gastric electrical abnormalities. It is hoped that these new methods and findings will translate into future clinical advances, to improve the diagnosis and treatment of these complex patient populations.
Author: John A. Kellum
Publisher: Oxford University Press
ISBN: 019022553X
Category : Medical
Languages : en
Pages : 329
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Book Description
Continuous Renal Replacement Therapy provides concise, evidence-based, bedside guidance for the management of critically ill patients with acute renal failure, offering quick reference answers to clinicians' questions about treatments and situations encountered in daily practice.
Author: K. Ray Chaudhuri
Publisher: Oxford University Press, USA
ISBN: 0199684243
Category : Medical
Languages : en
Pages : 517
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Book Description
Patients with Parkinson's disease (PD) are known to suffer from motor symptoms of the disease, but they also experience non-motor symptoms (NMS) that are often present before diagnosis or that inevitably emerge with disease progression. The motor symptoms of Parkinson's disease have been extensively researched, and effective clinical tools for their assessment and treatment have been developed and are readily available. In contrast, researchers have only recently begun to focus on the NMS of Parkinson's Disease, which are poorly recognized and inadequately treated by clinicians. The NMS of PD have a significant impact on patient quality of life and mortality and include neuropsychiatric, sleep-related, autonomic, gastrointestinal, and sensory symptoms. While some NMS can be improved with currently available treatments, others may be more refractory and will require research into novel (non-dopaminergic) drug therapies for the future. Edited by members of the UK Parkinson's Disease Non-Motor Group (PD-NMG) and with contributions from international experts, this new edition summarizes the current understanding of NMS symptoms in Parkinson's disease and points the way towards future research.
Author: Malcolm K Robinson
Publisher: CRC Press
ISBN: 1420018906
Category : Medical
Languages : en
Pages : 475
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Book Description
Although cardiovascular disease remains the leading proximate cause of death in the United States, it is now estimated that obesity may be equivalent to smoking as the leading cause of preventable death in America. In light of these statistics, this reference presents our current understanding of the epidemiology, pathology, and genetics of the obe
Author:
Publisher: Greenwood
ISBN: 9781573565707
Category : Business & Economics
Languages : en
Pages : 780
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Book Description
More than 5,100 current programs from 1,880 sponsors, including U.S. and foreign foundations, corporations, government agencies, and other organizations.
Author: Rui Manuel de Sousa Sequeira Antunes de Almeida
Publisher: Springer
ISBN: 3319570846
Category : Medical
Languages : en
Pages : 489
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Book Description
This clinical casebook is comprised of surgical cases involving the most important cardiovascular diseases in a concise, easy-to-read format (5x8 in trim size, like other titles in this burgeoning, informal product line in the Springer clinical medicine program). Each chapter is a case that opens with a unique clinical presentation, followed by a description of the diagnosis, assessment and management techniques used to treat it, as well as questions and answers (between 8 and 10) about relevant aspects related to the diagnosis and treatment of the addressed disease. The Q&A section will broaden discussion and increase the title's pedagogical value. The casebook features 40 surgical cases in the following thematic areas: Aortic Disease, Arrhythmias, Cardiac Tumors, Coronary Insufficiency, Congenital Heart Disease, Endovascular Therapies, Heart Failure, Heart Transplantation, Mechanical Circulatory Support, Pericardial Disease, Pulmonary Embolism and Valvular Heart Disease. This book will be prepared by the Brazilian Department for Academic Leagues of Cardiovascular Surgery, within the Brazilian Society of Cardiovascular Surgery (BSCVS). This department is the section within BSCVS that consists of the academic leagues of cardiovascular surgery from each university throughout the country. In Brazil, medical academic leagues are organizations that gathers students, interns and residents to discuss a certain topic and promote research and teaching-oriented extra-class activities, supervised by a group of professors. Thus trainees will have involvement in writing the chapters and the senior professor supervisors will edit and finalize the work. Basically, each chapter is written by an intern or resident and, ultimately, his/her supervisor. As the books volume editors, doctors Almeida and Jatene will have final responsibility for the cases and overall manuscript.
Author: Ainsley Malone
Publisher:
ISBN: 9781889622392
Category :
Languages : en
Pages :
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Book Description
Author: Amitabh Gulati
Publisher: Springer
ISBN: 3319996843
Category : Medical
Languages : en
Pages : 510
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Book Description
This text provides a comprehensive review and expertise on various interventional cancer pain procedures. The first part of the text addresses the lack of consistency seen in the literature regarding interventional treatment options for specific cancer pain syndromes. Initially, it discusses primary cancer and treatment-related cancer pain syndromes that physicians may encounter when managing cancer patients. The implementation of paradigms that can be used in treating specific groups of cancer such as breast cancer, follows. The remainder of the text delves into a more common approach to addressing interventional cancer pain medicine. After discussing interventional options that are commonly employed by physicians, the text investigates how surgeons may address some of the more severe pain syndromes, and covers the most important interventional available for our patients, intrathecal drug delivery. Chapters also cover radiologic options in targeted neurolysis and ablative techniques, specifically for bone metastasis, rehabilitation to address patients’ quality of life and function, and integrative and psychological therapies. Essentials of Interventional Cancer Pain Management globally assesses and addresses patients’ needs throughout the cancer journey. Written by experts in the field, and packed with copious tables, figures, and flow charts, this book is a must-have for pain physicians, residents, and fellows.
Author: United States. Surgeon General's Advisory Committee on Smoking and Health
Publisher:
ISBN:
Category : Smoking
Languages : en
Pages : 406
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Book Description
Author: Hilarie Surrena
Publisher: Lippincott Williams & Wilkins
ISBN: 0781785928
Category : Medical
Languages : en
Pages : 736
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Book Description
This concise clinical companion to the twelfth edition of Brunner and Suddarth's Textbook of Medical-Surgical Nursing presents nearly 200 diseases and disorders in alphabetical format, allowing rapid access to need-to-know information on the most commonly clinical problems nurses are likely to encounter. The content is completely cross-referenced to the main text. Pages are tabbed alphabetically for speedy reference. Online Tutoring powered by Smarthinking--Free online tutoring, powered by Smarthinking, gives students access to expert nursing and allied health science educators whose mission, like yours, is to achieve success. Students can access live tutoring support, critiques of written work, and other valuable tools.
