Evidence map›Paper›PMID 24784889›Full record

ArticleInternational journal of impotence research

Measurement of endothelial dysfunction via peripheral arterial tonometry predicts vasculogenic erectile dysfunction.

J R Kovac, L Gomez, R P Smith, R M Coward, M A Gonzales, M Khera, D J Lamb, L I Lipshultz

Open access · greenAbstract read
In one paragraph

Article in International journal of impotence research. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
2.1field-weighted citation impact, top 15% of its field
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

6 citing papers in PubMed, 16 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors at 1 institution in 1 country.

J R KovacScott Department of Urology, Baylor College of Medicine, Houston, TX, USA.
L GomezScott Department of Urology, Baylor College of Medicine, Houston, TX, USA.
R P SmithScott Department of Urology, Baylor College of Medicine, Houston, TX, USA.
R M CowardScott Department of Urology, Baylor College of Medicine, Houston, TX, USA.
M A GonzalesScott Department of Urology, Baylor College of Medicine, Houston, TX, USA.
M KheraScott Department of Urology, Baylor College of Medicine, Houston, TX, USA.
D J LambScott Department of Urology, Baylor College of Medicine, Houston, TX, USA.
L I LipshultzScott Department of Urology, Baylor College of Medicine, Houston, TX, USA.
Baylor College of Medicine · US

Funding

K-12: Male Reproductive Health Research (MRHR) Career Development Program at BCMK12HD073917 · NICHD · BAYLOR COLLEGE OF MEDICINE · PI LAMB, DOLORES JEAN · 2012 to 2016
$1.7M
UROLOGIC RESEARCH CAREER DEVELOPMENT PROGRAM (T32)T32DK007763 · NIDDK · BAYLOR COLLEGE OF MEDICINE · PI LAMB, DOLORES JEAN · 1999 to 2016
$1.4M
NICHD NIH HHS K12 HD073917NIDDK NIH HHS T32 DK007763
6 · The paper itself

Abstract

Endothelial cell dysfunction is associated with cardiovascular disease and vasculogenic erectile dysfunction (ED). Measured via peripheral artery tonometry (PAT), endothelial dysfunction in the penis is an independent predictor of future cardiovascular events. The aim of the study was to determine whether measurement of endothelial dysfunction differentiates men with vasculogenic ED identified by duplex ultrasound from those without. A total of 142 men were retrospectively assessed using patient history, penile duplex ultrasonography (US) and PAT (EndoPAT 2000). ED was self-reported and identified on history. Vasculogenic ED was identified in men who exhibited a peak systolic velocity (PSV) of ⩽ 25 cm s(-1) at 15 min following vasodilator injection. The reactive hyperemia index (RHI), a measurement of endothelial dysfunction in medium/small arteries, and the augmentation index (AI), a measurement of arterial stiffness, were recorded via PAT. Penile duplex US was used to categorize men into those with ED (n = 111) and those without ED (n = 31). The cohort with ED had a PSV of 21 ± 1 cm s(-1) (left cavernous artery) and 22 ± 1 cm s(-1) (right cavernous artery). The control group without ED had values of 39 ± 2 cm s(-1) (left) and 39 ± 2 cm s(-1) (right). Given the potential for altered endothelial function in diabetes mellitus, we confirmed that hemoglobin A1c, urinary microalbumin and vibration pulse threshold were not different in men with vasculogenic ED and those without. RHI in patients with ED (1.85 ± 0.06) was significantly decreased compared to controls (2.15 ± 0.2) (P<0.05). The AI was unchanged when examined in isolation, and when standardized to heart rate. Measurement of endothelial function with EndoPAT differentiates men with vasculogenic ED from those without. RHI could be used as a non-invasive surrogate in the assessment of vasculogenic ED and to identify those patients with higher cardiovascular risk.

Indexed as

ArteriesBlood PressureEndothelium, VascularHumansImpotence, VasculogenicMaleManometryMiddle AgedPenisRetrospective StudiesUltrasonography, Doppler, DuplexVascular Diseases

Identifiers

PMID24784889
PMCPMC4216643
OpenAlexW1981779044

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Registered trials

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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 OpenQuestion graph.