感觉动力学在尿动力学过程中识别出新型的膀感觉-容量曲线形状,用于尿急患者
John E Speich1, Annapoorani Narayanan2, Mrudula Bandaru2
1Department of Mechanical & Nuclear Engineering, Virginia Commonwealth University College of Engineering, Richmond, VA, USA.
Continence (Amsterdam, Netherlands)
|January 7, 2026
概括
尿动力学 (UDS) 期间的J形膀感觉-容量曲线与严重的过度活性膀 (OAB) 紧迫性和烦有关. 这一发现可能有助于识别不同的OAB表型,并指导治疗策略.
科学领域:
- 泌尿器科 泌尿器科 泌尿器科 泌尿器科
- 节制研究 节制研究
- 诊断方法 诊断方法
背景情况:
- 过度活跃的膀 (OAB) 是通过尿急性来定义的,但膀感觉和急性严重程度之间的关系需要进一步阐明.
- 一种基于平板电脑的新型"感觉计"有助于创建膀感觉-容量曲线,以分析膀填充感觉.
研究的目的:
- 为了将尿动力学 (UDS) 过程中产生的感觉能力曲线的形状与OAB患者的紧迫性和相关烦的严重性相关联.
- 调查曲线形状,UDS容量和detrusor过度活动 (DO) 之间的潜在关联.
主要方法:
- 预计将招募69名中度至重度急症患者,接受临床指示的UDS.
- 在UDS期间使用"感觉计"实时记录膀满度感觉 (0-100%) .
- 构建了感觉容量曲线,分析曲线下的面积 (AUC),并将形状分类为r,l和j模式,用于相关性分析.
主要成果:
- 该研究确定了10%的r形,62%的l形和28%的j形曲线.
- 在J形曲线和严重急迫性和高急迫性烦之间发现了显著的联系.
- 在曲线形状和膀容量之间没有观察到显著的关联,也没有观察到detrusor过度活性 (DO) 的存在.
结论:
- 标志着膀容量附近快速感官加速的J形感觉能力曲线与OAB患者的紧迫性严重程度和烦密切相关.
- 这些发现表明,J形曲线可能代表尿急的独特病理生理驱动因素,与膀容量或DO分开.
- 需要进一步的研究来探索感觉-容量曲线在识别新型OAB表型和个性化治疗方法方面的有用性.
相关概念视频
Urodynamic Studies: Uroflowmetry
3.3K
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...
3.3K
The Micturition Reflex
2.4K
Urination, or micturition involves the coordination of the bladder's detrusor muscle and two sphincters to ensure controlled bladder emptying.
The process begins with bladder filling, where the bladder wall stretches as urine accumulates. This stretching activates the urine storage reflex, mediated by the sacral spinal segments and the pontine storage center. Efferent sympathetic impulses stimulate the detrusor muscle to relax and the internal urethral sphincter to contract, facilitating...
The process begins with bladder filling, where the bladder wall stretches as urine accumulates. This stretching activates the urine storage reflex, mediated by the sacral spinal segments and the pontine storage center. Efferent sympathetic impulses stimulate the detrusor muscle to relax and the internal urethral sphincter to contract, facilitating...
2.4K
Anatomy of the Genitourinary System II: Bladder and Urethra
1.3K
The lower urinary system consists of the urinary bladder and urethra, which are essential in storing and expelling urine from the body. Together with the internal and external sphincters, these structures work together to regulate urination effectively.Anatomy of the BladderThe urinary bladder is a muscular, stretchable organ behind the pubic bone and in front of the rectum. In females, the bladder is positioned anterior to the vagina and inferior to the uterus, while in males, it is located...
1.3K
Urinary Bladder
3.1K
The urinary bladder is a hollow, muscular sac that temporarily stores urine before it is expelled from the body. It can hold approximately 600 mL of urine prior to micturition. The bladder is retroperitoneal and located behind the pubic symphysis in the pelvic floor.
In males, the bladder is situated in front of the rectum, while in females, it is positioned anterior to the vagina and uterus. The bladder floor contains an inverted triangular area called the trigone, defined by the two ureteric...
In males, the bladder is situated in front of the rectum, while in females, it is positioned anterior to the vagina and uterus. The bladder floor contains an inverted triangular area called the trigone, defined by the two ureteric...
3.1K
Imaging Studies VI: Voiding Cystourethrography and Cystography
1.2K
Voiding Cystourethrography (VCUG) and Cystography are specialized radiographic procedures used to examine the structure and function of the bladder and urethra.Voiding Cystourethrography (VCUG)A Voiding Cystourethrogram (VCUG) is a diagnostic imaging procedure that assesses the anatomy and function of the lower urinary tract. It focuses on the bladder, bladder neck, and urethra, helping detect abnormalities such as vesicoureteral reflux (VUR)—the backward or reverse flow of urine into the...
1.2K
Urinary Tract Calculi II: Pathophysiology and Clinical Manifestations
363
Renal calculi, commonly termed kidney stones, are crystalline solid masses that form in the kidneys but can occur at any point within the urinary system, encompassing the kidneys, ureters, bladder, and urethra.The pathophysiology of renal stones involves several key factors: supersaturation of the urine with stone-forming constituents, changes in urine pH, a decrease in urine volume, and the presence of substances that promote or inhibit stone formation.Supersaturation of Urine: This is the...
363


