Inan Sibel, Polat Onur, Yıgıt Safiye, Inan Umit Ubeyt
Department of Ophthalmology, Afyon Kocatepe University, Faculty of Medicine, Afyonkarahisar, Turkey.
Ophthalmology Clinic, Afyonkarahisar State Hospital, Afyonkarahisar, Turkey.
Afr Health Sci. 2018 Dec;18(4):1010-1017. doi: 10.4314/ahs.v18i4.22.
Most of patients experience pain during the panretinal photocoagulation(PRP). Laser photocoagulation delivery has advanced with the introduction of pattern-scanning laser systems (PASCAL). Shorter pulse duration and less choroidal penetration believed to reduce pain during the laser treatment.
To compare the severity of expressed pain scores in patients with PDR who underwent PRP either with PASCAL laser or conventional laser.
A total of 28 patients with a diagnosis of PDR who were scheduled for bilateral PRP therapy were enrolled into the prospective study. Both eyes were treated within the same session and while one eye was treated with PASCAL the other was treated with conventional laser randomly. Pulse duration was adjusted to 100-ms in conventional laser and 30 ms in PASCAL. The severity of pain was graded using a verbal scale and a visual analog scale (VAS).
Mean age was 61.36±9.10 years. Mean verbal and VAS scores were 1.32±0.47 and 2.86±1.21 in the PASCAL laser and 2.39±0.49 and 5.75±1.35 in the conventional laser group, respectively. Differences between expressed pain scores obtained by both two scales were statistically significant (p<0.001).
PASCAL laser significantly alleviates pain levels possibly due to the shorter laser pulse duration and lower intensity.
大多数患者在进行全视网膜光凝（PRP）时会感到疼痛。随着模式扫描激光系统（PASCAL）的引入，激光光凝技术有了进步。较短的脉冲持续时间和较少的脉络膜穿透被认为可减轻激光治疗期间的疼痛。
比较接受PASCAL激光或传统激光进行PRP的糖尿病性视网膜病变（PDR）患者所表达的疼痛评分的严重程度。
共有28例诊断为PDR且计划接受双侧PRP治疗的患者纳入前瞻性研究。双眼在同一次治疗中进行治疗，一只眼随机接受PASCAL激光治疗，另一只眼接受传统激光治疗。传统激光的脉冲持续时间调整为100毫秒，PASCAL激光为30毫秒。使用语言量表和视觉模拟量表（VAS）对疼痛严重程度进行分级。
平均年龄为61.36±9.10岁。PASCAL激光组的平均语言评分和VAS评分分别为1.32±0.47和2.86±1.21，传统激光组分别为2.39±0.49和5.75±1.35。两种量表所获得的疼痛评分之间的差异具有统计学意义（p<0.001）。
PASCAL激光可能由于较短的激光脉冲持续时间和较低的强度而显著减轻疼痛程度。
