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Updated: Feb 6, 2026

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心脏手术后视网膜微循环的变化:使用光学连贯断层扫描血管图的前性观察研究
Lina Aluzaite-Baranauskiene1, Andrius Pranskunas2, Audrone Veikutiene3
1Department of Ophthalmology, Lithuanian University of Health Sciences, Eiveniu Str. 2, 50161, Kaunas, Lithuania. lina.aluzaite@stud.lsmu.lt.
概括
心肺绕道 (CPB) 手术会导致显著的视网膜变化,包括减少斑点厚度和血管密度. 尽量减少大动脉十字 (ACC) 时间对于降低CPB手术后眼睛并发症的风险至关重要.
科学领域:
- 眼科医生 眼科 眼科
- 心血管外科心血管外科
- 医疗成像医学成像
背景情况:
- 众所周知,使用心肺旁路 (CPB) 的心脏手术会诱导微循环变化.
- 对于CPB对视网膜结构和血管特征的具体影响仍然在很大程度上未被探索.
- 这项研究调查了CPB手术后视网膜参数的变化.
研究的目的:
- 评估CPB手术对视网膜结构和血管参数的影响.
- 评估CPB后的斑点视网膜厚度 (RT),状细胞综合体 (GCC),血管密度 (VD) 和外皮皮质视网膜神经纤维层 (RNFL) 的变化.
- 为了将这些视网膜变化与CPB持续时间和大动脉十字 (ACC) 时间相关联.
主要方法:
- 一项前性观察性临床试验,涉及44名接受选择性CPB手术的患者.
- 眼科检查,包括光学连贯性断层扫描 (OCT) 和OCT血管扫描 (OCTA),在手术前和一周后进行.
- 分析的重点是斑点RT,GCC,VD (表面和深层毛细管) 和周毛细管RNFL的变化.
主要成果:
- 观察到中央黄斑RT和表面毛细管 (SCP) VD的术后显著下降.
- 周周膜RNFL厚度和大多数斑点GCC厚度的区域显著增加.
- 在ACC时间和RT之间发现了积极的相关性,以及中央斑点中的SCP和深毛细管 (DCP) VD.
结论:
- CPB手术导致显著的视网膜变化,其特点是黄斑RT和SCP VD减少,并增加周围毛囊RNFL和黄斑GCC厚度.
- 视网膜变化与ACC时间有关,这突显了尽量减少这一持续时间的重要性.
- 减少ACC时间对于减轻CPB手术后眼科并发症的风险至关重要.
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