Michael Siegenthaler

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OBJECTIVE The aim of this study was to evaluate the benefit of neurophysiological monitoring during thoracic and thoracoabdominal endovascular stent graft implantation. METHODS The spinal cords of 21 patients undergoing endovascular stent graft implantation on the thoracic and thoracoabdominal aorta were monitored with transcranial motor-evoked potentials(More)
OBJECTIVE Aortic endovascular stent-graft implantation is associated with low morbidity and mortality rates. Overstenting of the left subclavian artery may be necessary to create a satisfactory proximal 'landing zone' for the stent-graft. Few cases have been published reporting adverse neurological events after overstenting of the left subclavian artery. We(More)
BACKGROUND Short-term mechanical circulatory support may be lifesaving in patients with right ventricular (RV) failure related to post-cardiotomy cardiogenic shock (PCCS), cardiac transplantation (CTx), and long-term therapy with a left ventricular assist device (LVAD). This study evaluates our clinical experience using the CentriMag (Levitronix LLC,(More)
In industries such as healthcare, there is a need to electronically share privacy-sensitive data across distinct organizations. We show how this can be done while allowing organizations to keep their legacy databases and maintain ownership of the data that they currently store. Without sending or mirroring data to any trusted, centralized entity, we(More)
In the healthcare industry and others, sensitive private information must be stored and shared between various organizations in the course of running their business. We have developed an architecture in which distributed data can be queried as if it resided in a single centralized database, while revealing minimal information beyond the answer to the query.(More)
Cloud computing provides us with general purpose storage and server hosting platforms at a reasonable price. We explore the possibility of tapping these resources for the purpose of hosting source code repositories for individual projects as well as entire open source communities. An analysis of storage costs is presented, and a complete hosting solution is(More)
INTRODUCTION Pythiosis is a serious life- and limb-threatening infection endemic to Thailand, but rarely seen in the Western hemisphere. Here, we present a unique case of vascular pythiosis initially managed with limb-sparing vascular bypass grafts complicated by a pseudoaneurysm in our repair. PRESENTATION OF CASE The patient is a 17 year-old Jamaican(More)
BACKGROUND Hypertrophic cardiomyopathy (HCM) with midventricular hypertrophy is an uncommon phenotypic variant of the disease. Midventricular hypertrophy predisposes to intracavitary obstruction and downstream hemodynamic sequelae. CASE REPORT We present a case of HCM with midventricular hypertrophy and obstruction diagnosed after a CT scan of the abdomen(More)
BACKGROUND Mechanical circulatory support (MCS) is life sustaining for patients with end-stage heart failure. Most devices require abdominal wall transgression, creating a potential for abdominal complications. The incidence and impact of these relatively underreported complications are unknown. METHODS A retrospective review was performed on 179 patients(More)