眼内外科手术眼内血流动力学 响应眼内压力波动 视体切除术期间的多发性糖尿病视网膜病变
Ryuya Hashimoto1, Naoki Fujioka1, Kazufumi Tanaka1
1Department of Ophthalmology, Toho University Sakura Medical Center, 564-1 Shimoshizu, Sakura 285-8741, Japan.
Journal of clinical medicine
|March 14, 2026
概括
在增殖性糖尿病视网膜病变 (PDR) 患者中,视神经头部 (ONH) 血流在玻璃切除术期间随着眼内压升高 (IOP) 降低,但随后恢复,表明短期自我调节得到保护.
科学领域:
- 眼科医生 眼科 眼科
- 血管生物学 血管生物学
- 手术科学 手术科学
背景情况:
- 进行玻璃切除术的多发性糖尿病视网膜病变 (PDR) 患者面临视神经头部缩 (ONH) 和视野缺陷的风险.
- 在玻璃切除术期间的手术内眼内压 (IOP) 波动可能会损害PDR中的ONH自我调节.
- 评估ONH组织血流自我调节对于理解PDR手术结果至关重要.
研究的目的:
- 评估PDR患者在玻璃切除术期间IOP变化期间ONH组织血流的自我调节能力.
- 为了研究手术期间内血压波动和ONH血流之间的关系.
- 确定自身调节受损是否有助于PDR中术后ONH损伤.
主要方法:
- 使用手术内激光斑点流图 (LSFG) 进行ONH组织血液流量的定量评估.
- 平均模糊率 (MT) 在基线,高内压 (25 mmHg) 期间和内压正常化后的测量.
- 在五名PDR患者中使用星座平台的IOP控制系统进行IOP调节.
主要成果:
- 升高的内血压显著降低了ONH组织的血液流动 (MT在10分钟下降了29%,p <0.05).
- 在IOP恢复到基线后,ONH血流 (MT) 显著恢复 (p < 0.05).
- 在正常化后,MT水平与基线没有显著差异,这表明自我调节得到保留.
结论:
- 在玻璃切除术期间,在PDR患者中短期内保持ONH组织血液流动自调.
- 尽管康复,但对PDR患者来说,在玻璃切除术期间谨慎的IOP管理至关重要.
- 了解手术期间的ONH血流动力学可以为预防术后并发症的策略提供信息.
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