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Does phacoemulsification under topical anesthesia affect retrobulbar blood flow?

机译:局部麻醉下的超声乳化会影响眼球后血流吗?

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Purpose: To investigate with color Doppler imaging the effects of phacoemulsification surgery under topical anesthesia on retrobulbar vessels hemodynamics. Methods: In this prospective study, color Doppler imaging was used to measure the maximum (Vmax) and minimum flow velocity (Vmin) of the central retinal vein, and the Vmax and Vmin, pulsatility index and resistance index of the central retinal artery, nasal, and temporal posterior ciliary arteries, and ophthalmic artery blood flow before and 1 day after phacoemulsification surgery under topical anesthesia. Results: After phacoemulsification surgery under topical anesthesia, Vmin of the central retinal artery increased (p ≤ 0.05), whereas the other variables showed no significant change. Conclusions: Phacoemulsification surgery under topical anesthesia has a minor effect on retrobulbar blood flow. Therefore topical anesthesia should be suitable for patients with ocular perfusion disorders (eg, glaucoma).
机译:目的:利用彩色多普勒成像技术研究局部麻醉下超声乳化手术对球后血管血流动力学的影响。方法:在这项前瞻性研究中,使用彩色多普勒成像技术测量视网膜中央静脉的最大(Vmax)和最小流速(Vmin),以及视网膜中央动脉,鼻腔的Vmax和Vmin,搏动指数和阻力指数局部麻醉下超声乳化术之前和之后1天,以及眼后睫状动脉和眼动脉血流量。结果:在局部麻醉下进行超声乳化手术后,视网膜中央动脉的Vmin增加(p≤0.05),而其他变量无明显变化。结论:局部麻醉下超声乳化术对球后血流的影响较小。因此,局部麻醉应适合于眼部灌注障碍(例如青光眼)的患者。

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