Pars plana vitrectomy combined with hyaloido‐zonula‐iridectomy in treatment of patients with chronic aqueous misdirection: A systematic literature review and case series

2020 ◽  
Author(s):  
Diana Chabané Schmidt ◽  
Line Kessel ◽  
Karen Bjerg Pedersen ◽  
Jørgen Ebbe Villumsen ◽  
Daniella Bach‐Holm
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Enchi Kristina Chang ◽  
Sanchay Gupta ◽  
Marika Chachanidze ◽  
John B. Miller ◽  
Ta Chen Chang ◽  
...  

Abstract Purpose The purpose of this study is to report the safety and efficacy of pars plana glaucoma drainage devices with pars plana vitrectomy using one of the vitrectomy sclerotomy sites for tube placement in patients with refractory glaucoma. Methods Retrospective case series of 28 eyes of 28 patients who underwent combined pars plana glaucoma drainage device and pars plana vitrectomy between November 2016 and September 2019 at Massachusetts Eye and Ear. Main outcome measures were intraocular pressure (IOP), glaucoma medication burden, best corrected visual acuity, and complications. Statistical tests were performed with R and included Kaplan-Meier analyses, Wilcoxon paired signed-rank tests, and Fisher tests. Results Mean IOP decreased from 22.8 mmHg to 11.8 mmHg at 1.5 years (p = 0.002), and mean medication burden decreased from 4.3 to 2.1 at 1.5 years (p = 0.004). Both IOP and medication burden were significantly lower at all follow-up time points. The probability of achieving 5 < IOP ≤ 18 mmHg with at least 20% IOP reduction from preoperative levels was 86.4% at 1 year and 59.8% at 1.5 years. At their last visit, three eyes (10.7%) achieved complete success with IOP reduction as above without medications, and 14 eyes (50.0%) achieved qualified success with medications. Hypotony was observed in 1 eye (3.6%) prior to 3 months postoperatively and 0 eyes after 3 months. Visual acuity was unchanged or improved in 23 eyes (82.1%) at their last follow-up. Two patients had a visual acuity decrease of > 2 lines. Two eyes required subsequent pars plana vitrectomies for tube obstruction, and one eye had transient hypotony. Conclusions The results of pars plana glaucoma drainage device and pars plana vitrectomy using one of the vitrectomy sclerotomy sites for tube placement are promising, resulting in significant IOP and medication-burden reductions through postoperative year 1.5 without additional risk of postoperative complications. Inserting glaucoma drainage devices into an existing vitrectomy sclerotomy site may potentially save surgical time by obviating the need to create another sclerotomy for tube placement and suture one of the vitrectomy ports.


2016 ◽  
Vol 7 (3) ◽  
pp. 433-439
Author(s):  
Spyridon E. Chalkiadakis ◽  
Efstratios A. Parikakis ◽  
Simon R.J. Taylor

Background: The surgical case of a dropped intraocular lens inside the vitreous cavity constitutes a real challenge for the operating surgeon. Herein, we describe a case series where an alternative optical rehabilitation technique for late intraocular lens-bag complex dislocation has been used. Methods: A modern vitrectomy device was used to remove the capsule with the dropped intraocular lens using sutureless 25-gauge pars plana vitrectomy. To ensure a better aesthetic result, with faster patient recovery and a reduced number of operations, the whole procedure was performed during the same operating session; an iris-claw intraocular lens for aphakia was selected for implantation. The implant was passed behind the constricted iris with the concave surface facing it. The lens was grasped with the manufacturer’s holding forceps and fixed onto the posterior surface of the iris using the special enclavation needles. Results: We have operated 12 eyes in two different clinical centres successfully, with minimal intra- and/or postoperative complications. Conclusion: We believe that this is a viable solution for the visual rehabilitation of patients, who would otherwise need more than one operation for a lens exchange.


2020 ◽  
Vol 21 (7) ◽  
pp. 583-589 ◽  
Author(s):  
Yong Wang ◽  
Wenke Li ◽  
Nianliang Jing ◽  
Xiangji Meng ◽  
Shizhen Zhou ◽  
...  

2016 ◽  
Vol 214 (4) ◽  
pp. S491
Author(s):  
C. Arora ◽  
S. Shazly ◽  
S. Laughlin ◽  
M. Hopkins ◽  
D. Breitkopf ◽  
...  

2019 ◽  
Vol 6 (Supplement_2) ◽  
pp. S90-S90
Author(s):  
Eloise Williams ◽  
Adam W Jenney ◽  
Denis W Spelman

Abstract Background Nocardia bacteremia is a rare but important phenomenon, with previous studies describing a 50% mortality rate. We undertake a single-center review and the largest systematic review of Nocardia bacteremia performed over the past 20 years. Methods A single-center review of cases of Nocardia bacteremia was performed using hospital microbiology records from January 1, 2010 to December 31, 2017. A systematic literature review was also performed to identify cases of Nocardia bacteremia described in the English language literature between January 1, 1999 and December 31, 2018 using the NCBI PubMed database and snowballing from citations of relevant publications. Results Single-center case series: Four cases of Nocardia bacteremia are described. Three patients had an intravascular device in situ prior to the onset of Nocardia bacteremia and three patients were immunocompromised; one patient had both risk factors. Systematic literature review: A systematic review identified 50 publications that described 85 cases with sufficient patient data to be reviewed in detail. Including the 4 cases described in our institution, 89 cases of Nocardia bacteremia were included in the analysis. The median age was 57 years [interquartile range (IQR) 42–68] and 69% were male. Eighty-two percent of cases were immunocompromised and 38% had endovascular devices. Pulmonary infection was the most common concurrent site of clinical disease (66%), followed by central nervous system (25%), pleural (17%) disease, and endocarditis (11%). Blood cultures were the only positive microbiological specimen that isolated Nocardia in 45% of cases. Median incubation time to blood culture positivity was 4 days [IQR 3–6]. Thirty-day all-cause mortality was 24% and overall all-cause mortality was 42%. Conclusion Four new cases of Nocardia bacteremia are described. Isolation of Nocardia from blood cultures is rare but represents serious infection with high associated overall mortality. Nocardia bacteremia is most frequently identified in immunocompromised patients and those with intravascular devices. Disclosures All authors: No reported disclosures.


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