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Pars plana vitrectomy

Mehmet Murat Uzel, Mehmet Citirik, Cagri Ilhan, Merve Inanc
BACKGROUND AND OBJECTIVE: To evaluate the effect of preoperative intravitreal bevacizumab (IVB) (Avastin; Genentech, South San Francisco, CA) injection on the choice of endotamponade at the end of surgery in patients who underwent pars plana vitrectomy (PPV) for diabetic tractional retinal detachment (DTRD). PATIENTS AND METHODS: Seventy-eight patients who had DTRD with macular involvement and underwent PPV by a single surgeon from January 2012 to May 2015 were included...
October 1, 2016: Ophthalmic Surgery, Lasers & Imaging Retina
Golnaz Javey, Mohammed Rigi, Andrew J Barkmeier, Jordan L Heffez, Petros E Carvounis
PURPOSE: To determine the effect of cannula removal over the light pipe on the incidence of sclerotomy leakage and to evaluate other factors that may influence the incidence of sclerotomy leaks and hypotony on conclusion of small-gauge transconjunctival pars plana vitrectomy. METHODS: Retrospective, interventional clinical study of consecutive patients who underwent small-gauge transconjunctival pars plana vitrectomy at a single academic center. Eyes were divided into a group in which cannulae were removed over the light pipe (Group L) and a group in which cannulae were simply pulled out (Group N)...
October 4, 2016: Retina
Yu Ichioka, Akihito Uji, Nagahisa Yoshimura
BACKGROUND: To present an intraoperative acute Descemet's fold formation using swept-source optical coherence tomography (SS-OCT) imaging. CASE REPORT: A 67-year-old man complaining of reduced visual acuity in the left eye. A 25-gauge pars plana vitrectomy combined with phacoemulsification cataract surgery was performed to remove the vitreomacular traction. When hydro-sealing was performed, striae rapidly spread in the cornea. SS-OCT B-scan images performed on postoperative day 1 revealed a wavy Descemet's membrane that might correspond to Descemet's folds...
May 2016: Case Reports in Ophthalmology
Richard C Prielipp, Megan L Lanigan, David J Birnbach
No abstract text is available yet for this article.
October 1, 2016: American Journal of Ophthalmology
Ama Sadaka, Robert A Sisk, James M Osher, Okan Toygar, Melinda K Duncan, Christopher D Riemann
PURPOSE: The purpose of this study was to evaluate intravitreal methotrexate infusion (IMI) during pars plana vitrectomy (PPV) for retinal detachment in patients with high risk for the development of proliferative vitreoretinopathy (PVR). METHODS: Patients presenting with severe recurrent PVR with tractional retinal detachment and/or a history of severe ocular inflammation were treated with IMI. Clinical outcomes were determined from a retrospective medical chart review...
2016: Clinical Ophthalmology
Erkut Küçük, Uğur Yılmaz, Kürşad Ramazan Zor, Defne Kalaycı, Hikmet Sarıkatipoğlu
PURPOSE: To find out the rate of suture requirement and post-operative hypotony in a series of 23-gauge pars plana vitrectomy cases and analyze the factors affecting post-operative hypotony and leakage of sclerotomy leading to suture placement. METHODS: This is a single-center retrospective interventional case series. Eighty-four eyes underwent 23-gauge vitrectomy. Primary endpoint measures were rate of leakage of 23-gauge sclerotomies requiring suture placement at the end of surgery and rate of early post-operative hypotony...
September 30, 2016: International Ophthalmology
Mikel Mikhail, Nour Nofal, Mikael Sebag
PURPOSE: To describe a rare case of an exudative retinal detachment associated with a peripheral tear of the retinal pigment epithelium in a young myopic pachychoroid eye. METHODS: Clinical case report and literature review. Imaging was obtained with color fundus photography, spectral domain optical coherence tomography, fluorescein angiography, and fluorescein angiography. RESULTS: A 33-year-old white man presented with an exudative choroidopathy resulting in an exudative neurosensory detachment, associated with peripheral retinal pigment epithelium tears...
September 28, 2016: Retinal Cases & Brief Reports
Cindy X Zheng, Marlene R Moster, M Ali Khan, Allen Chiang, Sunir J Garg, Yang Dai, Michael Waisbourd
PURPOSE: To report the clinical features, microbial spectrum, and treatment outcomes of endophthalmitis after glaucoma drainage implant (GDI) surgery. METHODS: Records of patients diagnosed with endophthalmitis after GDI surgery were reviewed. Data on clinical course, microbiological laboratory results, and treatment were analyzed. RESULTS: Of 1,891 eyes that underwent GDI surgery, 14 eyes (0.7%) developed endophthalmitis. The mean time interval between GDI surgery and diagnosis of endophthalmitis was 2...
September 26, 2016: Retina
Zong-Ming Song, Xu-Ting Hu, Lei Wang, Zhi-Xiang Hu, Pei-Quan Zhao, Ding Chen
AIM: To report a simple approach to actively remove high viscosity silicone oil through a 23-gauge cannula via pars plana. METHODS: Forty-eight eyes of 48 patients underwent silicone oil (5700 centistokes) removal (SOR) were enrolled. A section of blood transfusion set was prepared to connect a standard 23-gauge cannula and vitrectomy machine. Silicone oil was removed with suction of 500-mm Hg vacuum through the cannula. Main outcome measures were SOR duration, number of sutured sites, intraocular pressure (IOP), best-corrected visual acuity (BCVA), and complications...
2016: International Journal of Ophthalmology
Michael N Cohen, Samuel K Houston, Amity L Roberts, Ralph C Eagle, Omesh P Gupta
PURPOSE: To analyze small gauge pars plana vitrectomy sclerotomies using live bacteria transformed with green fluorescent protein (GFP). METHODS: Twenty-eight human cadaver eyes were specially harvested for this study. Small gauge vitrectomy was performed on each eye and the wounds were closed with various techniques (sutured, sutureless, and cauterization). Live Staphylococcus epidermidis that has been transformed with a green fluorescent protein was applied to the overlying conjunctival surface...
September 23, 2016: Retina
Xu Sheng Cao, Xiao Yan Peng, Qi Sheng You, Li Bin Jiang, Jost B Jonas
PURPOSE: To describe the occurrence of a congenital contractile peripapillary staphyloma in association with a rhegmatogenous retinal detachment. METHODS: The clinical course of a 17-year-old patient with a contractile peripapillary staphyloma and undergoing pars plana vitrectomy for repair of an associated retinal detachment was studied. RESULTS: The left eye showed a peripapillary staphyloma which during the ophthalmoscopical examination revealed contractile movements after the presentation of a light stimulus to either eye...
September 23, 2016: Retinal Cases & Brief Reports
Vinod Kumar, Shreyans Jain, Parijat Chandra, Atul Kumar
A 25-year-old man presented with retinal detachment in his right eye 20 days after pars plana vitrectomy, epiretinal membrane peeling and endolaser assisted panretinal photocoagulation performed for non-resolving vitreous haemorrhage secondary to Eales disease. Inferior retina of the right eye showed multiple (around 120) retinal holes in relation to the previous photocoagulation marks. The patient was managed with repeat vitrectomy, endolaser and silicone oil infusion. The aetiology of multiple holes, precautions to prevent them and their management are described...
2016: BMJ Case Reports
Ryan J Kline, Ky Pham, Carmen L Labrie-Brown, Ken Mancuso, Paul LeLorier, James Riopelle, Alan David Kaye
BACKGROUND: Reflex hypotension and bradycardia have been reported to occur following administration of several drugs associated with administration of anesthesia and also following a variety of procedural stimuli. CASE REPORT: A 54-year-old postmenopausal female with a history of asystole associated with sedated upper gastrointestinal endoscopy and post-anesthetic-induction tracheal intubation received advanced cardiac resuscitation after insertion of a temporary transvenous pacemaker failed to prevent pulseless electrical activity...
2016: Ochsner Journal
Christopher F Blodi
David Kasner, MD (1927-2001), used his extensive dissections of eye bank eyes and experiences in teaching cataract surgery to resident physicians to realize that excision of vitreous when present in the anterior chamber of eyes undergoing cataract surgery was preferable to prior intraoperative procedures. Noting that eyes tolerated his maneuvers, he then performed planned subtotal open-sky vitrectomies; first on a traumatized eye in 1961, then on two eyes of patients with amyloidosis (1966-1967). The success of these operations was noted by others, most particularly Robert Machemer, MD...
2016: Ophthalmology and Eye Diseases
Robert Rejdak, Tomasz Choragiewicz, Agnieszka Kalinowska, Michael J Koss, Piotr Ksiazek, Joanna Moneta-Wielgos, Ryszard Maciejewski, Anselm G Jünemann, Katarzyna Nowomiejska
BACKGROUND: Endophthalmitis is potentially devastating intraocular inflammation following eye trauma or surgery. We describe the visual outcomes and causative pathogens in acute bacterial postoperative and posttraumatic endophthalmitis treated with immediate pars plana vitrectomy (PPV) with Vancomycin dissolved in the infusion fluid. METHODS: Clinical records of consecutive 30 patients with postoperative endophthalmitis and 15 patients with posttraumatic endophthalmitis were evaluated...
2016: BMC Infectious Diseases
Jacob B Gross, Garvin H Davis, Nicholas P Bell, Robert M Feldman, Lauren S Blieden
PURPOSE: To describe a new surgical technique to effectively close large (>180 degrees) cyclodialysis clefts. METHODS: Our method involves the use of procedures commonly associated with repair of retinal detachment and complex cataract extraction: phacoemulsification with placement of a capsular tension ring followed by pars plana vitrectomy and gas tamponade with light cryotherapy. We also used anterior segment optical coherence tomography (OCT) as a noninvasive mechanism to determine the extent of the clefts and compared those results with ultrasound biomicroscopy (UBM) and gonioscopy...
September 13, 2016: European Journal of Ophthalmology
James E Neffendorf, Bhaskar Gupta, Tom H Williamson
PURPOSE: To compare the intraoperative complications between 23-G and 20-G instrumentation in patients undergoing pars plana vitrectomy (PPV). METHODS: This was a retrospective comparative study of 4,274 PPV procedures by the same surgical team between 1998 and 2016. A total of 2,648 operations were carried out with 20-G surgery and 1,626 operations with 23-G surgery. Main outcome measures were the incidence of choroidal haemorrhage, iatrogenic retinal break, and lens touch...
September 9, 2016: European Journal of Ophthalmology
Prethy Rao, Yoshihiro Yonekawa, Benjamin J Thomas, Kimberly A Drenser
PURPOSE: To compare the sensitivities of spectral-domain optical coherence tomography (SD-OCT) versus time-domain OCT (TD-OCT) in identifying epiretinal membranes (ERM) preoperatively in patients who underwent surgery for full-thickness macular holes (FTMH). METHODS: This is an interventional retrospective case series of 59 eyes diagnosed with FTMHs who underwent 25-G pars plana vitrectomy with internal limiting membrane peeling between 2009 and 2015. Preoperative OCTs were obtained by SD-OCT (Spectralis, Heidelberg, Germany) or TD-OCT (Stratus, Carl Zeiss Meditec, Dublin, CA, USA)...
September 17, 2016: European Journal of Ophthalmology
Ella H Leung, Ajay E Kuriyan, Harry W Flynn, Nidhi Relhan, Laura C Huang, Darlene Miller
PURPOSE: To report the clinical settings, microbiological isolates, and best corrected visual acuities (BCVA) of patients with persistently culture-positive exogenous fungal endophthlamitis. DESIGN: Retrospective, consecutive, case series. METHODS: Setting: Tertiary referral center. PATIENT POPULATION: 16 eyes of 16 patients with at least two consecutive positive vitreous cultures between 1981-2015. INTERVENTIONS: Intravitreal antifungal injections, pars plana vitrectomy (PPV) Main Outcome Measure: Clinical settings, microbiologic isolates, BCVA RESULTS: The most common clinical settings were after cataract surgery (9/16, 56%), glaucoma surgery (4/16, 25%), and trauma (2/16, 13%)...
September 16, 2016: American Journal of Ophthalmology
Ana Licina, Sharan Sidhu, Jing Xie, Crispin Wan
BACKGROUND: Vitrectomy surgery is one of the commonest ophthalmic procedures performed across the world. It may be performed using general or local anaesthesia encompassing regional or topical anaesthesia depending on a number of factors, including patient suitability, and patient, surgeon or anaesthetist preference. There have so far been no evidence-based recommendations on the best form of anaesthesia for this intervention. There is no clear collated evidence base as to the best type of anaesthesia to reduce harm, and provide best surgical conditions and optimal outcome for patients...
September 19, 2016: Cochrane Database of Systematic Reviews
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