Evidence map›Paper›PMID 17204590›Full record

ArticleAmerican journal of physiology. Regulatory, integrative and comparative physiology2007

Increased duration of simulated childbirth injuries results in increased time to recovery.

H Q Pan, J M Kerns, D L Lin, S Liu, N Esparza, M S Damaser

Open access · greenAbstract read
In one paragraph

Article in American journal of physiology. Regulatory, integrative and comparative physiology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
3.4field-weighted citation impact, top 8% 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

35 citing papers in PubMed, 54 citations in OpenAlex.

  1. Article
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  15. Review
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  17. Article
  18. Vulnerability of continence structures to injury by simulated childbirth.American journal of physiology. Renal physiology · 2011
    Article
  19. Animal models of stress urinary incontinence.Handbook of experimental pharmacology · 2011
    Review
  20. Pudendal nerve injury reduces urethral outlet resistance in diabetic rats.American journal of physiology. Renal physiology · 2010
    Article
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

6 authors at 3 institutions in 1 country.

H Q PanCleveland Clinic, 9500 Euclid Ave. ND20 Cleveland, OH 44195, USA.
J M Kerns
D L Lin
S Liu
N Esparza
M S Damaser
Cleveland Clinic · USLoyola University Chicago · USRush University · 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-HD-038679-05
6 · The paper itself

Abstract

Stress urinary incontinence (SUI) development is strongly correlated with vaginal childbirth, particularly increased duration of the second stage of labor. However, the mechanisms of pelvic floor injury leading to SUI are largely unknown. The aim of this study was to determine the effects of increased duration of vaginal distension (VD) on voiding cystometry, leak point pressure testing, and histology. Sixty-nine virgin female rats underwent VD with an inflated balloon for either 1 or 4 h, while 33 age-matched rats were sham-VD controls. Conscious cystometry, leak point pressure testing, and histopathology were determined 4 days, 10 days, and 6 wk after VD. The increase in abdominal pressure to leakage (LPP) during leak point pressure testing was significantly decreased in both distension groups 4 days after distension, indicative of short-term decreased urethral resistance. Ten days after VD, LPP was significantly decreased in the 4-h but not the 1-h distension group, indicating that a longer recovery time is needed after longer distension duration. Six weeks after VD, LPP was not significantly different from sham-VD values, indicating a return toward normal urethral resistance. In contrast, 6 wk after VD of either duration, the distended rats had not undergone the same increase in voided volume as the sham-VD group, suggesting that some effects of VD do not resolve within 6 wk. Both VD groups demonstrated histopathological evidence of acute injuries and tissue remodeling. In conclusion, this experiment suggests pressure-induced hypoxia as a possible mechanism of injury in vaginal delivery.

Indexed as

ParturitionAnimalsComputer SimulationDelivery, ObstetricDisease Models, AnimalFemalePregnancyRandom AllocationRatsRats, Sprague-DawleyTime FactorsUrinary CatheterizationUrinary Incontinence, StressUrodynamicsVagina

Identifiers

PMID17204590
PMCPMC2536599
OpenAlexW2091207929

What OpenQuestion holds

Textmetadata
Read underepoch 390

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.