仪器仪表和灌配置是否会在PCNL期间影响内压力?
Evan Seibly1, Ali Albaghli1, Kyu Park1
1Department of Urology Loma Linda University Health Loma Linda California USA.
BJUI compass
|February 6, 2026
概括
通过皮肤瘤切除术 (PCNL) 期间控制内压力 (IRP) 是至关重要的. 优化外套,灌和吸配置可以有效地管理IRP,以获得更好的外科结果.
科学领域:
- 泌尿器科 泌尿器科 泌尿器科 泌尿器科
- 手术技术 手术技术
- 医疗设备工程 医疗设备工程
背景情况:
- 皮肤透神经切除术 (PCNL) 涉及管理内压力 (IRP).
- 镜外,灌和吸收的不同配置可能会影响IRP.
- 了解这些影响对于优化手术安全性和疗效至关重要.
研究的目的:
- 在模拟PCNL过程中量化不同刚性神经镜罩 (RNS),灌,仪器和吸入设置对IRP的影响.
- 确定最优的配置,以保持低或暂时升高的IRP.
主要方法:
- 利用3D打印的脏模型模拟容易患者的解剖学.
- 我们比较了RNS,灌 (进流与出流端口) 和吸气的14个配置.
- 以逆行方式测量IRP,并使用Wilcoxon Signed-Rank测试与Bonferroni校正分析数据.
主要成果:
- 该RNS显著增加了平均IRP (19.1比14.7mmHg;p<0.001).
- 通过输入端口进行灌的结果是IRP (19.1 mmHg) 比输出端口 (32.7 mmHg; p < 0.001) 低.
- 吸收显著降低了IRP (p < 0.001),而仪器没有显著的影响.
结论:
- 通过去除RNS,使用流入灌和采用吸水来保持低的IRP.
- 通过使用外流端口进行灌,尽量减少排水,并利用RNS,可以实现高的IRP.
- 这些发现为PCNL期间的动态IRP管理提供了指导.
相关概念视频
Design Example: Design of an Irrigation Channel
852
Trapezoidal channels are widely used in irrigation systems due to their cost-effectiveness and efficiency in conveying water. Trapezoidal channels feature a flat bottom and sloping sides, making them stable and easier to construct compared to other shapes. The bottom width and side slope ratio are determined based on the required flow capacity and site conditions. The side slope is kept gentle for unlined channels to prevent soil erosion.Hydraulic parameters in channel design include the flow...
852
Controller Configurations
381
Controller configurations are crucial in a car's cruise control system because they manage speed over time to maintain a consistent pace regardless of road conditions, thereby meeting design goals. In traditional control systems, fixed-configuration design involves predetermined controller placement. System performance modifications are known as compensation.
Control-system compensation involves various configurations, most commonly series or cascade compensation, in which the controller...
Control-system compensation involves various configurations, most commonly series or cascade compensation, in which the controller...
381
Electron Configurations
26.5K
Electron configurations and orbital diagrams can be determined by applying the Aufbau principle (each added electron occupies the subshell of lowest energy available), Pauli exclusion principle (no two electrons can have the same set of four quantum numbers), and Hund’s rule of maximum multiplicity (whenever possible, electrons retain unpaired spins in degenerate orbitals).
The relative energies of the subshells determine the order in which atomic orbitals are filled (1s, 2s, 2p, 3s, 3p,...
The relative energies of the subshells determine the order in which atomic orbitals are filled (1s, 2s, 2p, 3s, 3p,...
26.5K
Electron Configuration of Multielectron Atoms
65.2K
The alkali metal sodium (atomic number 11) has one more electron than the neon atom. This electron must go into the lowest-energy subshell available, the 3s orbital, giving a 1s22s22p63s1 configuration. The electrons occupying the outermost shell orbital(s) (highest value of n) are called valence electrons, and those occupying the inner shell orbitals are called core electrons. Since the core electron shells correspond to noble gas electron configurations, we can abbreviate electron...
65.2K
Role of Affect in Interpersonal Attraction
232
Affect plays a crucial role in shaping interpersonal evaluations and perceptions. Emotions influence how individuals judge and respond to others, often determining whether interactions are viewed positively or negatively. This effect can manifest directly through interactions with the person in question or indirectly via associations with unrelated emotional experiences.Direct Effects of Affect on AttractionAffect directly influences interpersonal attraction when a person’s behavior...
232
Configurations of BJT
1.1K
Bipolar Junction Transistors (BJTs) are categorized into various types based on their configurations, each with distinct characteristics and applications. The configurations are primarily differentiated by which terminal—base, emitter, or collector—is common to both the input and output circuits.
The common base configuration is noted for its high voltage gain, positioning it as an ideal choice for single-stage amplifier circuits, such as microphone pre-amplifiers. A notable...
The common base configuration is noted for its high voltage gain, positioning it as an ideal choice for single-stage amplifier circuits, such as microphone pre-amplifiers. A notable...
1.1K


