Normative parameters for monitoring of nocturnal penile tumescences: a systematic review and algorithm development


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Abstract

Objective: a systematic review of the available literature sources about criteria for nocturnal penile tumescences (NPT) registration, as well as the development our own criteria for evaluating erectograms obtained from Androscan «MIT» software complex. Materials and methods: a systematic search about NPT criteria was conducted in the Medline database. A PRISMA flowchart was used to visually represent the design of the study. The necessary calculations were carried out using the STATISTICA 12 software. Results: Normal erectile function is characterized by a relative increase in penis diameter (RIn) of 30% or more with the duration of such NPTs of more than 60 minutes. For a mild ED in the case of a good RIn (30% or more) with a duration of NPT with such RIn less than 10 minutes (the time of 1 effective erection), it is advisable to determine the duration of the NPT with a RIn of 20% or more. If RIn is less than 30% it is advisable to use the duration of sufficient erections (with a relative increase in diameter of 20% or more) and the border value in this case is 60 minutes or more. Severe ED is characterized by RIn less than 20% or duration of NPT of less than 10 minutes with any RIn. Conclusion: at the moment there are no uniform criteria for the diagnosis of ED using the Androscan «MIT» software complex. As part of the unification of ED diagnostics we first introduced the terms of «effective erection», «sufficient erection», «relative increase» and also developed regulatory criteria and an algorithm for evaluating erectograms which will ensure continuity as well as the possibility of comparison of the results from different research groups.

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About the authors

M. E. Chaliy

Lomonosov Moscow State University

Email: chalyy@bk.ru
Dr.Sc. (Med.), Professor, Leading Research Scientist, Medical Research and Education Center of Lomonosov Moscow State University Moscow, Russia

D. A Ohobotov

Lomonosov Moscow State University

Email: 14072003@rambler.ru
Ph.D. (Med.), Urologist, Medical Research and Education Center, Lomonosov Moscow State University, Senior Lecturer, Department of Andrology and Urology, Faculty of Fundamental Medicine, Lomonosov Moscow State University Moscow, Russia

N. I Sorokin

Lomonosov Moscow State University

Email: nisorokin@mail.ru
Dr.Sc. (Med); Leading scientific researcher, scientific department of urology and andrology, Medical Research and Education Center Moscow, Russia

A. V Kadrev

Lomonosov Moscow State University

Email: akadrev@yandex.ru
MD, Ph.D., Head of Ultrasound Diagnostics Department; Researcher, Department of Urology and Andrology, Medical Research and Educational Center, Lomonosov Moscow State University; Assistant Professor, Diagnostic Ultrasound Division, Russian Medical Academy of Continuous Professional Education Moscow, Russia

L. I Dyachuk

Lomonosov Moscow State University

Email: cardio-heart@yandex.ru
Ph.D., Head of Cardiology Department Medical Research and Educational Center Moscow, Russia

A. A. Strigunov

Lomonosov Moscow State University

PhD student at the Department of Urology and Andrology of the Faculty of Fundamental Medicine Moscow, Russia

O. Yu Nesterova

Lomonosov Moscow State University

Email: oy.nesterova@gmail.com
resident physician at the Department of Urology and Andrology of the Faculty of Fundamental Medicine Moscow, Russia

A. V Mikhalchenko

Lomonosov Moscow State University

Email: mihaleksei@mail.ru
PhD student at the Department of Urology and Andrology of the Faculty of Fundamental Medicine Moscow, Russia

A. A Kamalov

Lomonosov Moscow State University

Email: armais.kamalov@rambler.ru
Academician RAS, Professor, Dr.Sc. (Med), Director Medical Research and Education Center of Lomonosov Moscow State University, Moscow, Russia; Head of the Department of Urology and Andrology, Faculty of Fundamental Medicine Moscow, Russia

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