在绝经前和绝经后妇女的阴道生物机械功能,有和没有盆腔器官脱落
Qinhan Zhou1, Guang Li2, Jasmine X Kiley3,4,5
1Department of Bioengineering, University of Texas at Dallas, 800 W Campbell Rd, Richardson, TX, 75080, USA.
Scientific reports
|July 27, 2025
概括
盆腔器官脱落 (POP) 对绝经后妇女的阴道生物力学有不同的影响,晚期观察到组织强度下降. 绝经前妇女没有出现显著的变化,这表明在POP发展过程中存在明显的潜在过程.
科学领域:
- 生物医学工程 生物医学工程
- 妇科 妇科医生 妇科
- 组织力学 组织力学
背景情况:
- 阴道的机械完整性对于分娩至关重要;受损的完整性可能导致骨盆器官脱落 (POP).
- 以前关于骨盆器官生物力学的研究主要涉及动物模型,缺乏人类阴道组织数据,特别是关于POP.
- 了解POP对阴道组织机制的影响对于开发有效治疗方法至关重要.
研究的目的:
- 量化人类阴道组织的双轴生物机械性质,在盆腔器官脱落 (POP) 的不同阶段.
- 为了比较这些性质在绝经前和绝经后的妇女与不同程度的POP之间.
- 调查3D显微镜在阴道组织的微观结构量化方面的潜力.
主要方法:
- 在不同POP阶段 (非POP,POP-II,POP-III) 的绝经前和绝经后妇女的阴道组织样本上进行了双轴机械测试.
- 分析了周边和纵向方向的脚区域模量.
- 在初步的微观结构评估中使用了非破坏性3D显微镜.
主要成果:
- 在绝经后的女性中,与POP-II和非POP阶段相比,在POP-III中观察到周围和纵向脚区域模量下降.
- 在绝经前妇女的POP阶段中,没有发现阴道生物力学特性在统计学上显著的变化.
- 在绝经前非POP和POP-II组织中存在阴道模块的方向差异,但在POP-III和绝经后组织中不存在.
结论:
- 盆腔器官脱落在更年期前和更年期后的妇女身上明显地影响了阴道生物力学,这表明了不同的潜在病理机制.
- 这些发现强调了在了解和治疗POP时需要考虑特定年龄的需要.
- 使用3D显微镜等技术进行进一步的微结构分析对于全面了解与POP相关的阴道组织变化至关重要.
相关概念视频
Muscles of the Pelvic Floor and Perineum
2.1K
The muscles of the pelvic floor and perineum are crucial for supporting the pelvic organs, controlling continence, and aiding in sexual function, childbirth, and core stability. They are typically divided into the superficial perineal layer and the deep pelvic floor layer.
Perineal Layer
The perineum is a diamond-shaped area below the pelvic diaphragm, divided into an anterior urogenital triangle that contains the external genitals and a posterior anal triangle housing the anus. The urogenital...
Perineal Layer
The perineum is a diamond-shaped area below the pelvic diaphragm, divided into an anterior urogenital triangle that contains the external genitals and a posterior anal triangle housing the anus. The urogenital...
2.1K
Vagina
10.4K
The vaginal canal is a tubular structure averaging about 10 cm in length that acts as the entryway to the female reproductive system and the passageway for menstrual flow and childbirth. The interior walls of the vagina exhibit concentric folds called rugae and are topped by an area known as the fornix, which connects with the protruding cervical portion of the uterus. This canal is comprised of an external fibrous layer, a muscular middle layer, and an inner lining with mucosal rugae, which...
10.4K
Mitral Valve Prolapse II: Assessment and Management
40
IntroductionA range of clinical features characterizes Mitral Valve Prolapse (MVP), but it is important to note that many individuals with MVP are asymptomatic and may remain so throughout their lives. For those who do exhibit symptoms, the following are the key clinical features:Palpitations: This is a common symptom where individuals feel an irregular or rapid heartbeat. Palpitations in MVP are often due to arrhythmias such as premature ventricular contractions or supraventricular...
40
Mitral Valve Prolapse I: Introduction
43
IntroductionThe mitral valve, one of the heart's four valves, regulates blood flow. These valves have flaps that open and close to direct blood properly through the heart and body. During each heartbeat, the flaps open for blood to pass through and seal shut to prevent backflow. Specifically, the mitral valve opens to allow blood flow from the heart's upper left chamber to the lower left chamber. It then closes securely as the lower left chamber contracts to pump blood to the body, preventing...
43
Assessment of the Rectum and Anus
407
Evaluating the rectum and anus plays a crucial role in conducting a thorough physical examination of the gastrointestinal system. Although it may be uncomfortable and often embarrassing for the patient, it holds immense diagnostic value, particularly in detecting gastrointestinal diseases and abnormalities. This guide will explain how to perform this assessment using inspection and palpation methods.
Rectal Inspection
Begin by inspecting the perianal and anal areas for color, texture, rashes,...
Rectal Inspection
Begin by inspecting the perianal and anal areas for color, texture, rashes,...
407
Urodynamic Studies: Uroflowmetry
590
Uroflowmetry is a non-invasive urodynamic test designed to measure various aspects of urination, including volume, flow rate, and the time to void. This test is crucial for diagnosing and assessing conditions such as bladder outlet obstruction, bladder dysfunction, incomplete bladder emptying, incontinence, and urinary tract blockages caused by benign prostatic hyperplasia (BPH) and urethral strictures.Pre-Test Instructions:Before a uroflowmetry test, patients are typically advised to drink...
590


