flanged technique

  • 文章类型: Journal Article
    目的:评估使用可调节法兰技术二次植入四点巩膜固定后房型人工晶状体和两根平行的6-0polyglactin缝线的疗效和安全性。
    方法:将两条平行的6-0polyglactin缝线分别穿过4触觉IOL水平线上的两个触觉。然后修整并烧灼四个外化缝合线以形成凸缘。最好的矫正视力,眼内压,观察并记录所有患者的并发症。
    结果:使用两个平行的6-0polyglactin缝线的法兰技术应用于14只无晶状体眼。术前平均最佳矫正视力为1.00±0.88LogMAR(Snellen20/200),最终随访时,LogMAR提高到0.42±0.38(Snellen20/48)(P=0.004)。没有患者出现玻璃体出血,低眼压,或缝线暴露或断裂的问题。
    结论:技术的简单性,以及它适应植入后调整的能力,允许最佳定位和减少风险,如IOL倾斜或脱位。总的来说,这是一种很有前途的二次人工晶体植入方法,对患者预后和手术效率都有潜在的好处。
    OBJECTIVE: To assess the efficacy and safety of using the adjustable flanged technique for secondary implantation of four-point scleral‑fixated posterior chamber intraocular lenses with two parallel 6-0 polyglactin sutures.
    METHODS: Two parallel 6-0 polyglactin sutures were passed separately through the two haptics on the horizontal line of the 4-haptic IOL. The four externalized sutures were then trimmed and cauterized to form flanges. The best corrected visual acuity, intraocular pressure, and complications in all patients were observed and recorded.
    RESULTS: The flanged technique using two parallel 6-0 polyglactin sutures was applied to 14 aphakic eyes. The average preoperative best corrected visual acuity was 1.00 ± 0.88 LogMAR (Snellen 20/200), which improved to 0.42 ± 0.38 LogMAR (Snellen 20/48) at the final follow-up (P = 0.004). None of the patients experienced vitreous hemorrhage, low intraocular pressure, or issues with exposed or broken sutures.
    CONCLUSIONS: The simplicity of the technique, along with its ability to accommodate adjustments post-implantation, allows for optimal positioning and reduces risks like IOL tilt or dislocation. Overall, this is a promising approach to secondary IOL implantation, with potential benefits for both patient outcomes and surgical efficiency.
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  • 文章类型: Journal Article
    成熟的高患病率,过度成熟,发展中国家的外伤性白内障,加上手术资源的有限可用性和技术的眼前节外科医生来管理由此产生的无晶状体眼,让病人不必要地失明。依靠后段外科医生,昂贵的手术设置,和用于无晶状体眼治疗的合适晶状体限制了接受二次人工晶状体(IOL)的患者数量.利用公认的翻边技术和现成的聚甲基丙烯酸甲酯(PMMA)镜片,使用直针上的7-0聚丙烯缝合线,可以通过拨号孔创建吊床。这种通过IOL的拨号孔进行的4法兰巩膜固定使得即使是前段外科医生也可以将PMMA晶状体固定在巩膜上,而无需任何专用设备或带有孔眼的巩膜固定透镜。该技术在103例病例中成功实施,没有发生IOL偏心。
    The high prevalence of mature, hypermature, and traumatic cataracts in developing countries, combined with the limited availability of surgical resources and skill by anterior segment surgeons to manage the resultant aphakia, leaves the patient needlessly blind. Relying on posterior segment surgeons, expensive surgical setup, and appropriate lenses for aphakia management limits the number of patients receiving a secondary intraocular lens (IOL). Utilizing the well-acknowledged flanging technique and the readily available polymethyl methacrylate (PMMA) lenses with dialing holes in their optic, a hammock can be created through the dialing holes using a 7-0 polypropylene suture on a straight needle. This 4-flanged scleral fixation through the dialing hole of an IOL makes scleral fixation of PMMA lens possible by even anterior segment surgeons without requiring any specialized equipment or scleral fixated lens with eyelet. This technique was successfully performed in a series of 103 cases with no incidence of IOL decentration.
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  • 文章类型: Journal Article
    分析人工晶状体(IOL)计算公式在预测接受法兰巩膜内人工晶状体固定术的患者术后结果中的视觉结果和准确性。
    案例系列。
    23例患者使用法兰巩膜内固定技术进行了二次IOL置入。
    回顾性图表回顾。
    根据明显的屈光校正了远距视敏度(CDVA)和术后等效球面。
    视力从20/577提高到20/58。总的来说,实际的屈光度比预期的近视多0.06D。Holladay2,SandersRetzlaffKraff/理论界(SRK/T)和BarrettUniversalII导致轻度近视意外(-0.55,-0.18和-0.20D)。Haigis和Hill-RBF(径向基函数)导致轻度远视意外(0.28和0.28D)。HofferQ和Holladay1是最准确的(-0.02D和-0.08D)。
    带法兰的巩膜内人工晶体固定术可改善其他后段病变患者的视力。有效的晶状体定位可能类似于袋内定位。采用袋中计算的HofferQ和Holladay1公式是最准确的。
    UNASSIGNED: To analyze visual outcomes and accuracy of intraocular lens (IOL) calculation formulas in predicting postoperative outcomes in patients undergoing flanged intrascleral IOL fixation.
    UNASSIGNED: Case Series.
    UNASSIGNED: Twenty-three patients who had undergone secondary IOL placement using flanged intrascleral fixation technique.
    UNASSIGNED: Retrospective chart review.
    UNASSIGNED: Corrected distance visual acuity (CDVA) and postoperative spherical equivalent based on manifest refraction.
    UNASSIGNED: Visual acuity improved from 20/577 to 20/58. Overall, the actual refraction was 0.06 D more myopic than predicted. Holladay 2, Sanders Retzlaff Kraff/Theoretical (SRK/T) and Barrett Universal II resulted in mild myopic surprise (-0.55, -0.18 and -0.20 D). Haigis and Hill-RBF (Radial Basis Function) resulted in mild hyperopic surprise (+0.28 and +0.28 D). Hoffer Q and Holladay 1 were the most accurate (-0.02D and -0.08 D).
    UNASSIGNED: Flanged intrascleral IOL fixation improved vision even in patients with other posterior segment pathologies. The effective lens positioning is likely similar to in-the-bag positioning. Hoffer Q and Holladay 1 formulas with in-the-bag calculations were the most accurate.
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  • 文章类型: Journal Article
    目的:评估法兰技术改良Bentall手术的早期和晚期结果。
    方法:我们回顾了2001年1月至2018年12月在我们研究所接受改良Bentall手术进行牙根置换的63例患者的病历。在大多数情况下,我们通过法兰技术采用了由机械瓣膜或生物假体和Dacron移植物构成的复合移植物。自2011年以来,我们使用了Valsalva移植物。
    结果:平均年龄57±16岁,范围16-80例,男性43例。平均随访75±56个月(范围0-216)。到2020年4月1日,我们可以在六个月内跟进61例(97%)。医院死亡率为7.9%(选择性病例为4.8%)。在后期随访中,观察到8人死亡。在bio-Bentall组(n=26)中,无死亡或重大不良瓣膜相关事件(MARVEs)发生.在机械Bentall组中(n=37),七例MARVE,包括两次脑出血和一次脑栓塞,被观察到。bio-bentall组所有患者术后5年无MARVE,93.8%和76.8%在5年和10年无事件发生,分别,在机械Bentall组。
    结论:改良Bentall手术18年的结果是可以接受的,在bio-bentall组中提供出色的结果。法兰技术可以使用更大的假体,这可能导致了良好的耐久性与bio-Bentall程序。
    OBJECTIVE: To evaluate the early and late outcomes of the modified Bentall procedure with the flanged technique.
    METHODS: We reviewed the medical records of 63 patients who had undergone root replacement by the modified Bentall procedure at our institute between January 2001 and December 2018. In most cases, we adopted a composite graft constructed with a mechanical valve or bioprosthesis and a Dacron graft by the flanged technique. Since 2011, we have used Valsalva grafts.
    RESULTS: Mean age 57 ± 16 years, range 16-80, male 43 cases. The mean follow-up was 75 ± 56 months (range 0-216). Through April 1, 2020, we could follow up on 61 cases (97%) within a six-month period. Hospital mortality was 7.9% (4.8% in elective cases). In late follow-up, eight deaths were observed. In the bio-Bentall group (n=26), no deaths or major adverse valve-related events (MARVEs) occurred. In the mechanical Bentall group (n=37), seven cases of MARVEs, including two cerebral hemorrhages and one cerebral embolism, were observed. All patients were free from MARVEs at 5 years post procedure in the bio-Bentall group, and 93.8% and 76.8% were event-free at 5 years and 10 years, respectively, in the mechanical Bentall group.
    CONCLUSIONS: The 18-year results of the modified Bentall procedure were acceptable, providing excellent outcomes in the bio-Bentall group. The flanged technique enabled the use of a larger prosthesis, which may have resulted in good durability with the bio-Bentall procedure.
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  • 文章类型: Comparative Study
    OBJECTIVE: Intraoperative complications in cataract surgery are more common in diabetic patients. Solving aphakia in these circumstances remains a challenge, as the scleral structure has been shown to be different in diabetes. This study aims to analyze the role of a secondary sutureless scleral intraocular lens (IOL) flanged fixation in diabetic patients without capsular support and to compare the anatomical and functional outcomes using a 30 gauge (G) ultrathin wall needle vs. a 27G needle.
    METHODS: Retrospective, observational cohort study. 105 eyes (105 patients) who underwent PPV with secondary IOL fixation using a sutureless 27G (n = 51) or a 30G ultrathin wall (UTW) needle technique (n = 54) and had a 24 months postoperative follow up. Consecutive patients\' records were reviewed for lens stability and centration parameters, intra- and postoperative complications at 7 days, 1, 3, 6, 12, and 24 months after surgery. Correlations between outcome measures and needle size (27G vs. 30G UTW) were analyzed.
    RESULTS: IOL displacement occurred in 30 patients (41.2%) in the 27G group and did not occur in the 30G UTW needle group (p < 0.001). Mean time until IOL displacement was 10.5 ± 7.0 months (range: 7 days-24 months). IOL centricity was significantly better in the 30G ultrathin wall needle group compared to 27 G (p = 0.001). Additional surgical interventions were necessary only in the 27G group (n = 14).
    CONCLUSIONS: Sutureless IOL flanged technique using a 30G UTW needle is more predictable and has less complications in aphakic diabetic patients, compared to a 27G needle technique.
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