Effects of Levator Ani Muscle Morphology on the Mechanics of Vaginal Childbirth

2012 ◽  
pp. 63-75 ◽  
Author(s):  
Xiani Yan ◽  
Jennifer A. Kruger ◽  
Martyn P. Nash ◽  
Poul M. F. Nielsen
Keyword(s):  
Levator Ani ◽  
Levator Ani Muscle ◽  
Muscle Morphology

scholarly journals How well can levator ani muscle morphology on 3D pelvic floor ultrasound predict the levator ani muscle function?

2014 ◽  
Vol 26 (2) ◽  
pp. 257-262 ◽  
Author(s):  
G. Rostaminia ◽  
J. D. Peck ◽  
L. H. Quiroz ◽  
S. A. Shobeiri
Keyword(s):  
Pelvic Floor ◽  
Muscle Function ◽  
Levator Ani ◽  
Levator Ani Muscle ◽  
Pelvic Floor Ultrasound ◽  
Muscle Morphology

Levator ani muscle morphology and recurrent genuine stress incontinence

1993 ◽  
Vol 43 (2) ◽  
pp. 235-235 ◽  
Author(s):  
E. Hanzal ◽  
E. Berger ◽  
H. Koelbl
Keyword(s):  
Stress Incontinence ◽  
Levator Ani ◽  
Levator Ani Muscle ◽  
Muscle Morphology ◽  
Genuine Stress Incontinence

scholarly journals Levator ani muscle morphology and function in women with obstetric anal sphincter injury

2019 ◽  
Vol 53 (3) ◽  
pp. 410-416 ◽  
Author(s):  
I. Volløyhaug ◽  
A. Taithongchai ◽  
I. Van Gruting ◽  
A. Sultan ◽  
R. Thakar
Keyword(s):  
Anal Sphincter ◽  
Levator Ani ◽  
Obstetric Anal Sphincter Injury ◽  
Levator Ani Muscle ◽  
Sphincter Injury ◽  
Muscle Morphology ◽  
Anal Sphincter Injury ◽  
And Function

scholarly journals Contraction of the levator ani muscle during Valsalva maneuver (coactivation) is associated with a longer active second stage of labor in nulliparous women undergoing induction of labor

2019 ◽  
Vol 220 (2) ◽  
pp. 189.e1-189.e8 ◽  
Author(s):  
Rasha Kamel ◽  
Elisa Montaguti ◽  
Kypros H. Nicolaides ◽  
Mahmoud Soliman ◽  
Maria Gaia Dodaro ◽  
...  
Keyword(s):  
Valsalva Maneuver ◽  
Levator Ani ◽  
Induction Of Labor ◽  
Levator Ani Muscle ◽  
Second Stage Of Labor ◽  
Second Stage ◽  
Nulliparous Women

scholarly journals Animal models for pelvic organ prolapse: systematic review

2021 ◽  
Author(s):  
Marina Gabriela M. C. Mori da Cunha ◽  
Katerina Mackova ◽  
Lucie Hajkova Hympanova ◽  
Maria Augusta T. Bortolini ◽  
Jan Deprest
Keyword(s):  
Pelvic Organ Prolapse ◽  
Animal Models ◽  
Vaginal Delivery ◽  
Structural Changes ◽  
Meta Analysis ◽  
Levator Ani ◽  
Complete Recovery ◽  
Pelvic Organ ◽  
Squirrel Monkeys ◽  
Levator Ani Muscle

Abstract Introduction and hypothesis We aimed to summarize the knowledge on the pathogenesis of pelvic organ prolapse (POP) generated in animal models. Methods We searched MEDLINE, Embase, Cochrane and the Web of Science to establish what animal models are used in the study of suggested risk factors for the development of POP, including pregnancy, labor, delivery, parity, aging and menopause. Lack of methodologic uniformity precluded meta-analysis; hence, results are presented as a narrative review. Results A total of 7426 studies were identified, of which 51 were included in the analysis. Pregnancy has a measurable and consistent effect across species. In rats, simulated vaginal delivery induces structural changes in the pelvic floor, without complete recovery of the vaginal muscular layer and its microvasculature, though it does not induce POP. In sheep, first vaginal delivery has a measurable effect on vaginal compliance; measured effects of additional deliveries are inconsistent. Squirrel monkeys can develop POP. Denervation of their levator ani muscle facilitates this process in animals that delivered vaginally. The models used do not develop spontaneous menopause, so it is induced by ovariectomy. Effects of menopause depend on the age at ovariectomy and the interval to measurement. In several species menopause is associated with an increase in collagen content in the longer term. In rodents there were no measurable effects of age apart of elastin changes. We found no usable data for other species. Conclusion In several species there are measurable effects of pregnancy, delivery and iatrogenic menopause. Squirrel monkeys can develop spontaneous prolapse.

scholarly journals OP34.07: Levator ani muscle injury after first delivery in Chinese primiparous women

2011 ◽  
Vol 38 (S1) ◽  
pp. 154-154 ◽  
Author(s):  
S. Chan ◽  
A. S. Wong ◽  
R. Cheung ◽  
A. Yiu ◽  
L. Lee ◽  
...  
Keyword(s):  
Muscle Injury ◽  
Levator Ani ◽  
Levator Ani Muscle ◽  
Levator Ani Muscle Injury ◽  
Primiparous Women
Sign in / Sign up

Export Citation Format

Share Document