Evidence map›Paper›PMID 18973146›Full record

ArticleNeurourology and urodynamics2009

Dual simulated childbirth injuries result in slowed recovery of pudendal nerve and urethral function.

Hai-Hong Jiang, Hui Q Pan, Marcus A Gustilo-Ashby, Bradley Gill, Jonathan Glaab, Paul Zaszczurynski, Margot Damaser

Open access · greenAbstract read
In one paragraph

Article in Neurourology and urodynamics, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
3.2field-weighted citation impact, top 9% 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

43 citing papers in PubMed, 71 citations in OpenAlex.

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  9. Evaluation of Pelvic Floor Muscles in Pregnancy and Postpartum With Non-Invasive Magnetomyography.IEEE journal of translational engineering in health and medicine · 2022
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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

7 authors at 1 institution in 1 country.

Hai-Hong JiangDepartment of Biomedical Engineering, Cleveland Clinic, Cleveland, Ohio 44195, USA.
Hui Q Pan
Marcus A Gustilo-Ashby
Bradley Gill
Jonathan Glaab
Paul Zaszczurynski
Margot Damaser
Cleveland Clinic · US

Funding

MECHANISMS OF INCONTINENCE FOLLOWING VAGINAL DISTENSIONR01HD038679 · NICHD · LOYOLA UNIVERSITY CHICAGO · PI DAMASER, MARGOT S. · 2000 to 2010
$2.7M
NICHD NIH HHS R01 HD038679NICHD NIH HHS R01 HD38679-08
6 · The paper itself

Abstract

aimsPelvic floor muscle trauma and pudendal nerve injury have been implicated in stress urinary incontinence (SUI) development after childbirth. In this study, we investigated how combinations of these injuries affect recovery.

methodsSixty-seven female Sprague-Dawley rats underwent vaginal distension (VD), pudendal nerve crush (PNC), PNC and VD (PNC + VD), pudendal nerve transection (PNT), or served as unmanipulated controls. Four days, 3 weeks, or 6 weeks after injury, we simultaneously recorded pudendal nerve motor branch potentials (PNMBP), external urethral sphincter electromyography (EUS EMG), and transurethral bladder pressure under urethane anesthesia. The presence of a guarding reflex (increased frequency and amplitude of PNMBP or EUS EMG activity) during leak point pressure (LPP) testing was determined.

resultsControls consistently demonstrated a guarding reflex. Four days after VD, EUS EMG activity was eliminated, but PNMBP activity reflected the guarding reflex; EUS EMG activity recovered after 3 weeks. Four days after PNC, both EUS EMG and PNMBP activity were eliminated, but demonstrated significant recovery at 3 weeks. Four days after PNC + VD both EUS EMG and nerve activity were eliminated, and little recovery was observed after 3 weeks with significant recovery of the guarding reflex 6 weeks after injury. Little recovery was observed at all time points after PNT. LPP results mirrored the reduction in EUS EMG activity.

conclusionFunctional recovery occurs more slowly after PNC + VD than after either PNC or VD alone. Future work will be aimed at testing methods to facilitate neuroregeneration and recovery after this clinically relevant dual injury.

Indexed as

Peripheral Nerve InjuriesAnimalsData Interpretation, StatisticalDisease Models, AnimalElectromyographyFemaleHumansNerve CrushNerve RegenerationParturitionPelvic FloorPregnancyRatsRats, Sprague-DawleyUrethraUrinary Catheterization

Identifiers

PMID18973146
PMCPMC2661359
OpenAlexW2087794524

What OpenQuestion 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 OpenQuestion graph.