The Ovation abdominal stent graft system is a unique polymer-based trimodular endoprosthesis that has demonstrated safety and effectiveness in treatment of abdominal aortic aneurysms, especially in patients with challenging neck anatomy and narrow iliac vessels ( Fig. 7.1 ). The…
Background of the Medtronic Endurant Stent Graft Device The Endurant stent graft system is an evolution of previous abdominal stent graft systems to meet the challenges of hostile abdominal aortic aneurysm anatomy. After gaining CE marking in Europe in 2008…
Introduction Endovascular aortic repair (EVAR) has become the standard of care in the treatment of infrarenal abdominal aortic aneurysm (AAA), with low perioperative morbidity and mortality and comparable long-term outcomes to open surgical repair. Successful EVAR requires meticulous intraoperative execution…
Endovascular aortic aneurysm repair (EVAR) was first performed in 1987 ; however, a more popularized adaptation was introduced in the early 1990s. Since then, EVAR’s popularity and methods have expanded with a constantly evolving and growing list of techniques, devices,…
Introduction: Options for Achieving Hemostasis Arterial access was first described by Sven Ivar Seldinger in the 1950s and is increasingly being utilized as open surgeries are replaced by minimally invasive image-guided procedures. The common femoral artery (CFA) continues to be…
Introduction General Issues Anatomy While access sites such as the common femoral artery are easily accessible, sometimes alternative access may be needed as a result of the previous site being infected, scarred, or occluded. Preoperative planning by considering the patient’s…
Introduction The common femoral artery (CFA) is considered the most frequently used percutaneous arterial access site. Multiple methods are used as a landmark for entry, including pulse palpation, fluoroscopic guidance, and ultrasound-guided puncture to achieve arterial access. Many access-related complications…
Haemorrhoids Anatomy and physiology Haemorrhoids are vascular arteriovenous plexuses that form two sets of anal cushions in the normal rectal anatomy. These plexuses are located in the upper anal canal above the dentate line (internal haemorrhoidal plexus), and at the…
Introduction Anorectal sepsis is common, presenting as either an acute abscess or a chronic anal fistula. Treatment in most involves only a small risk of minor complications, but a minority can present a major challenge to both sufferer and surgeon.…
Introduction Symptoms related to functional gastrointestinal disorders (FGIDs) are highly prevalent. In community-based studies, up to 22% of ‘normal’ UK subjects can be diagnosed as having irritable bowel syndrome (IBS) and up to 28% have functional constipation. These disorders are…