63-μm凝微支架与45-μm凝微支架的结果:一项国际多中心研究
Mohammad Javad Ghanbarnia1, Ticiana De Francesco2, Ahmed Abdelaal3
1Prism Eye Institute, Mississauga, Canada; Department of Ophthalmology and Vision Sciences, University of Toronto, Toronto, Canada.
Ophthalmology. Glaucoma
|February 4, 2026
概括
63μm的凝微支架显示出比45μm变体更好的眼内压力 (IOP) 降低,需要更少的药物. 然而,63μm支架有更多的短暂的低血压相关的并发症,如冠状腺脱落.
科学领域:
- 眼科医生 眼科 眼科
- 玻璃眼的手术 玻璃眼的手术
- 医疗器械 医疗器械
背景情况:
- 青光眼的治疗通常需要手术来降低眼内压力 (IOP).
- 微创视眼手术 (MIGS) 设备,如凝微支架,提供了传统手术的替代方案.
- 将同一设备的不同尺寸进行比较对于优化患者的治疗结果至关重要.
研究的目的:
- 为了比较63μm凝微型支架 (Xen63) 与45μm凝微型支架 (Xen45) 的12个月有效性和安全性.
- 为了评估两种微型支架尺寸之间的眼内压力 (IOP) 降低,药物使用和并发症率的差异.
主要方法:
- 一个多中心的,回顾性队列研究,涉及200名患者的200只眼睛.
- 患者接受了63μm或45μm的凝微支架,有或没有同时发酵.
- 主要结局是1年后的完全手术成功,由特定的IOP目标来定义,并且没有视力丧失或重复手术.
主要成果:
- 在1年内,63μm微支架 (56.9%) 的完全手术成功率明显高于45μm微支架 (43.9%),使用14 mmHg IOP截止值 (P=0.017).
- 63μm组在12个月后实现了显着较低的平均内血压 (14.6 mmHg vs 15.8 mmHg),并且需要更少的药物 (0.6 vs 1.1).
- 在63μm组中,早期的术后冠状腺输液更频繁 (25.0%对6.0%,P<0.001),但干预和重新手术是可比的.
结论:
- 与45μm变体相比,63μm的凝微支架提供了优越的IOP降低效率,特别是对于更严格的IOP目标.
- 虽然需要更少的药物,但63μm支架与过渡性低血压相关并发症的发生率更高有关.
- 这两种微型支架尺寸在12个月的研究期间显示了可比的干预和重新手术率.
相关概念视频
Internal Forces and Center of Gravity
869
Internal forces and the center of gravity are fundamental concepts in mechanics, playing a crucial role in understanding the behavior and stability of structures and objects under various conditions. A comprehensive understanding of these principles is essential for engineers, architects, and designers to create safe and efficient systems.
Internal forces are generated within a body due to the interaction between its particles. These forces can be categorized into tension, compression, and...
Internal forces are generated within a body due to the interaction between its particles. These forces can be categorized into tension, compression, and...
869
Entropy
36.2K
Salt particles that have dissolved in water never spontaneously come back together in solution to reform solid particles. Moreover, a gas that has expanded in a vacuum remains dispersed and never spontaneously reassembles. The unidirectional nature of these phenomena is the result of a thermodynamic state function called entropy (S). Entropy is the measure of the extent to which the energy is dispersed throughout a system, or in other words, it is proportional to the degree of disorder of a...
36.2K
Third Law of Thermodynamics
22.1K
A pure, perfectly crystalline solid possessing no kinetic energy (that is, at a temperature of absolute zero, 0 K) may be described by a single microstate, as its purity, perfect crystallinity,and complete lack of motion means there is but one possible location for each identical atom or molecule comprising the crystal (W = 1). According to the Boltzmann equation, the entropy of this system is zero.
22.1K
Internal Energy
36.8K
The total of all possible kinds of energy present in a substance is called the internal energy (U), sometimes symbolized as E. Suppose a system with initial internal energy, Uinitial, undergoes a change in energy (transfer of work or heat), and the final internal energy of the system is Ufinal. Change in internal energy equals the difference between Ufinal and Uinitial.
36.8K
Internal Receptors
74.7K
Many cellular signals are hydrophilic and therefore cannot pass through the plasma membrane. However, small or hydrophobic signaling molecules can cross the hydrophobic core of the plasma membrane and bind to internal, or intracellular, receptors that reside within the cell. Many mammalian steroid hormones use this mechanism of cell signaling, as does nitric oxide (NO) gas.
74.7K
Lattice Centering and Coordination Number
11.7K
The structure of a crystalline solid, whether a metal or not, is best described by considering its simplest repeating unit, which is referred to as its unit cell. The unit cell consists of lattice points that represent the locations of atoms or ions. The entire structure then consists of this unit cell repeating in three dimensions. The three different types of unit cells present in the cubic lattice are illustrated in Figure 1.
Types of Unit Cells
Imagine taking a large number of identical...
Types of Unit Cells
Imagine taking a large number of identical...
11.7K


