新型超声乳化手柄对前房稳定性的影响。
Effect of a new phacoemulsification and aspiration handpiece on anterior chamber stability.
机构信息
From the Zengyo Suzuki Eye Clinic, Kanagawa, Japan (Suzuki); Department of Ophthalmology, Nippon Medical School, Chiba Hokusoh Hospital, Chiba, Japan (Igarashi); Department of Ophthalmology, Nippon Medical School, Tokyo, Japan (Takahashi).
出版信息
J Cataract Refract Surg. 2023 Jan 1;49(1):91-96. doi: 10.1097/j.jcrs.0000000000001071.
PURPOSE
To evaluate the responsiveness of 3 phacoemulsification and aspiration (PEA) systems and a new handpiece to occlusion break by measuring anterior chamber depth (ACD) and intraocular pressure (IOP).
SETTING
Zengyo Suzuki Eye Clinic, Kanagawa, Japan.
DESIGN
Experimental study.
METHODS
ACD change during intentional occlusion breaks was observed and evaluated using the slit side view (SSV) method and IOP measurement with the Centurion Vision System (Group 1), Centurion Vision System with Active Sentry (Group 2), Infiniti Vision System (Group 3), and Constellation Vision System (Group 4). 5 eyes were included per group. Occlusion breaks were triggered at IOP of 30 mm Hg, vacuum limits of 550 mm Hg, and aspiration rate of 40 mL/min. ACD change ratio, surge duration, and surge volume were analyzed from videos of SSV and IOP measurement.
RESULTS
The smallest ACD change was observed in Group 2 with SSV. ACD change ratios in Groups 1 to 4 were 17.5% ± 3.9%, 7.3% ± 1.2%, 35.7% ± 9.5%, and 74.1 ± 7.7%, respectively. Surge duration and surge volume were calculated only for Groups 1 and 2 and were significantly lower in Group 2 than in Group 1 (0.32 ± 0.03 vs 1.17 ± 0.07 seconds; 18.91 ± 4.70 vs 45.70 ± 0.83 μL). In these 2 groups, ACD change ratio correlated with surge volume.
CONCLUSIONS
This study evaluated the responsiveness of 3 PEA systems and a new handpiece to occlusion breaks by measuring IOP and ACD. The Active Sentry system was useful for maintaining the ACD even during occlusion breaks.
目的
通过测量前房深度（ACD）和眼内压（IOP），评估 3 种超声乳化仪和一种新型手柄对阻塞解除的反应性。
设置
日本神奈川县增永铃木眼科诊所。
设计
实验研究。
方法
使用裂隙侧视（SSV）法观察并评估故意阻塞解除期间的 ACD 变化，使用 Centurion Vision System（第 1 组）、带主动哨兵的 Centurion Vision System（第 2 组）、Infiniti Vision System（第 3 组）和 Constellation Vision System（第 4 组）进行 IOP 测量。每组包含 5 只眼。在 IOP 为 30mmHg、真空限制为 550mmHg 和抽吸速度为 40mL/min 的情况下触发阻塞解除。从 SSV 和 IOP 测量的视频中分析 ACD 变化率、涌流持续时间和涌流体积。
结果
SSV 观察到第 2 组的 ACD 变化最小。第 1 组至第 4 组的 ACD 变化率分别为 17.5%±3.9%、7.3%±1.2%、35.7%±9.5%和 74.1%±7.7%。仅对第 1 组和第 2 组计算涌流持续时间和涌流体积，第 2 组显著低于第 1 组（0.32±0.03 对 1.17±0.07 秒；18.91±4.70 对 45.70±0.83μL）。在这两组中，ACD 变化率与涌流体积相关。
结论
本研究通过测量 IOP 和 ACD 评估了 3 种超声乳化仪和一种新型手柄对阻塞解除的反应性。Active Sentry 系统有助于在阻塞解除期间维持 ACD。
Zotero 插件