Evidence mapPaperPMID 39323922Full record

ArticleBJUI compass2024

Shedding light on night-time erections: Determining the feasibility of nocturnal erection detection with penile transdermal light reflection of haemoglobin.

Evelien J Trip, Hille J Torenvlied, Henk W Elzevier, Rob C M Pelger, Jack J H Beck

Erratum issuedAbstract read
In one paragraph

Article in BJUI compass, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Erratum.BJUI compass · 2024
    Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors.

Evelien J TripDepartment of Urology Leiden University Medical Centre Leiden The Netherlands.ORCID https://orcid.org/0000-0003-1721-8551
Hille J TorenvliedDepartment of Urology Leiden University Medical Centre Leiden The Netherlands.ORCID https://orcid.org/0009-0004-9710-0477
Henk W ElzevierDepartment of Urology Leiden University Medical Centre Leiden The Netherlands.ORCID https://orcid.org/0000-0001-9636-0200
Rob C M PelgerDepartment of Urology Leiden University Medical Centre Leiden The Netherlands.ORCID https://orcid.org/0000-0001-6328-6462
Jack J H BeckDepartment of Urology St. Antonius Hospital Utrecht The Netherlands.ORCID https://orcid.org/0000-0002-0012-9678

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objectives: Utilizing penile saturation and temperature measurements presents a promising avenue for the development of an innovative sensor system aimed at nocturnal erection detection. This study aims to determine the feasibility of erection detection with light reflection of haemoglobin (LRH), as a precursor for penile saturation measurements, as well as penile temperature by comparison with simultaneous overnight RigiScan measurements. Materials and Methods: This is a proof-of-concept observational study on 10 healthy volunteers with a cross sectional design. A penile transdermal haemoglobin and temperature sensor was developed to measure penile LRH through real-time monitoring with receiving photodiodes and emitting light-emitting diode (LED). Besides statistical analysis on LRH, temperature and RigiScan data, a visual assessment was done to determine detectability of changes in the LRH and temperature course during the RigiScan-annotated erections. Results: A total of 40 nocturnal erections from 10 healthy volunteers were annotated with the RigiScan. The LRH values significantly increase during a nocturnal erection ( Conclusion: Penile LRH and temperature have the potential to serve as an alternative methodology for nocturnal erection detection compared with the currently applied circumference and rigidity measurements. This is an important step in the development of a patient-friendly and modernized tool for erectile dysfunction diagnostics. An improved sensor should be developed to allow for calculation of saturation percentage from LRH values. In combination with penile temperature measurements, this allows for conduction of further validity studies to work towards translation into clinical practice for non-invasive ED diagnostics.

Indexed as

erectile dysfunctionlight reflection of haemoglobinnocturnal erectionspenile temperatureRigiScan

Identifiers

PMID39323922
PMCPMC11420100

What Socratic holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.