Levator Ani Muscle Complex: Anatomic Findings in Nulliparous Patients at Thin-Section MR Imaging with Double Opacification

Radiology ◽  
2012 ◽  
Vol 262 (2) ◽  
pp. 538-543 ◽  
Author(s):  
Pierre Loubeyre ◽  
Michele Copercini ◽  
Patrick Petignat ◽  
Jean Bernard Dubuisson
Keyword(s):  
Mr Imaging ◽  
Thin Section ◽  
Levator Ani ◽  
Levator Ani Muscle ◽  
Muscle Complex

scholarly journals MR Imaging of Levator Ani Muscle Recovery Following Vaginal Delivery

1999 ◽  
Vol 10 (5) ◽  
pp. 300-307 ◽  
Author(s):  
R. Tunn ◽  
J. O. L. DeLancey ◽  
D. Howard ◽  
J. M. Thorp ◽  
J. A. Ashton-Miller ◽  
...  
Keyword(s):  
Mr Imaging ◽  
Vaginal Delivery ◽  
Levator Ani ◽  
Levator Ani Muscle ◽  
Muscle Recovery

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