Pelvic floor muscle injury during a difficult labor. Can tissue fatigue damage play a role?
Pelvic floor muscle injury during a difficult labor. Can tissue fatigue damage play a role?
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DOI：
10.1007/s00192-021-05012-5
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发表时间：
2022-03
影响因子：
1.8
通讯作者：
Ashton-Miller JA
中科院分区：
文献类型：
--
作者：
Vila Pouca MCP;Parente MPL;Natal Jorge RM;DeLancey JOL;Ashton-Miller JA
困难阴道分娩过程中耻骨内脏肌 (PVM) 损伤会导致日后盆腔器官脱垂。如果人们能够解决肌肉损伤的发生方式和原因，那么将来也许能够更好地预防这些损伤。在最近的一篇综述中，我们得出的结论是，肌肉肌腱单位的许多非创伤性损伤与其在重复负荷过程中被动组织损伤累积而被削弱是一致的。虽然 PVM 可能会因第二产程结束时的一次过度拉伸而撕裂，但我们假设它也可能因微损伤的积累而减弱，然后在一系列次最大负荷循环后撕裂。我们的结论是，有强有力的间接证据表明 PVM 被动组织的低周疲劳是其近端失效的可能机制。这对于寻找未来更好地预防 PVM 损伤的新方法具有重要意义。
Pubovisceral muscle (PVM) injury during a difficult vaginal delivery leads to pelvic organ prolapse later in life. If one could address how and why the muscle injury originates, one might be able to better prevent these injuries in the future. In a recent review we concluded that many atraumatic injuries of the muscle-tendon unit are consistent with it being weakened by an accumulation of passive tissue damage during repetitive loading. While the PVM can tear due to a single overstretch at the end of the second stage of labor we hypothesize that it can also be weakened by an accumulation of microdamage and then tear after a series of submaximal loading cycles. We conclude that there is strong indirect evidence that low cycle fatigue of PVM passive tissue is a possible mechanism of its proximal failure. This has implications for finding new ways to better prevent PVM injury in the future.
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影响因子：
4
作者：
Miura K;Fukushi Y
通讯作者：
Fukushi Y
DOI：
10.1196/annals.1389.034
发表时间：
2007-01-01
期刊：
REPRODUCTIVE BIOMECHANICS
影响因子：
--
作者：
Ashton-Miller, James A.;Delancey, John O. L.
通讯作者：
Delancey, John O. L.
影响因子：
2
作者：
Da Silva, Ana Sofia;Digesu, G. Alessandro;Khullar, Vik
通讯作者：
Khullar, Vik
影响因子：
7.2
作者：
Lien, KC;Mooney, B;Ashton-Miller, JA
通讯作者：
Ashton-Miller, JA
影响因子：
4.8
作者：
Chen, Junjie;Kim, Jinhee;Wojtys, Edward M.
通讯作者：
Wojtys, Edward M.