Vascular Andrology Erectile Dysfunction, Priapism and Varicocele
Erectile Dysfunction is a complex syndrome associated and determined by several separate vascular and nonvascular factors. In recent years, the evolution of noninvasive vascular technology used to ivestigate macro- and microcirculation in vascular disorde
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Springer Berlin Heidelberg New York Barcelona Budapest Hong Kong London Milan Paris Santa Clara Singapore Tokyo
Andrea Ledda (Ed.)
Vascular Andrology Erectile Dysfunction, Priapism and Varicocele
With 25 Figures and 12 Tables
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Springer
Dr. ANDREA LEODA Chieti University Andrology Division Urology Institute 1-66100 Chieti
Acknowledgement This publication has been supported and made possible by a generous grant from SCHWARZ PHARMA AG, Alfred-Nobel-Str. 10, D-40789 Monheim. Federal Republic of Germany ISBN-13:978-3-540-59472-7 DOl: 10.1007/978-3-642-79853-5
e-ISBN-13:978-3-642-79853-5
Die Deutsche Bibliothek - CIP-Einheitsaufnal1me Vascular andology: erectile dysfunction, priapism varicocele; with 12 tableslA. Ledda (ed.). - Berlin; Heidelberg; New York; Barcelona; Budapest; Hong Kong; London; Milan; Paris; Santa Clara; Singapore; Tokyo: Springer, 1996 NE: Ledda, Andrea [Hrsg.] This work is subject to copyright. All rights are reserved, whether the whole or part of the material is concerned, specifically the rights of translation, reprinting, reuse of illustrations, recitation, broadcasting, reproduction on microfilms or in any other way, and storage in data banks. Duplication of this publication or parts thereof is permitted only under the provisions of the German Copyright Law of September 9, 1965, in its current version, and permission for use must always be obtained from Springer-Verlag. Violations are liable for prosecution under the German Copyright Law. © Springer -Verlag Berlin Heidelberg 1996
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21/3133-543210 - Printed on acid-free paper
Preface
Erectile dysfunction is a complex syndrome associated with and determined by several separate, vascular and nonvascular factors. In recent years the evolution of noninvasive vascular technology for investigating the macro- and microcirculation in vascular disorders has produced a large amount of information and has increased our knowledge of vascular pathophysiology. In the specific field of vasculogenic erectile dysfunction two major problems have been defined using ultrasound based methods (duplex and color duplex scanning): the first is theoretically caused by decreased arterial inflow and the second by increased venous outflow. Erection is the result of the fine balance and timing between blood inflow and outflow, and these problems often overlap, as both vascular alterations are present in patients with vasculogenic erectile dysfunction. Recently the role of the microcirculation has been studied using laser Doppler flowmetry and other met
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