Comparison of Conjunctival Cytological Alterations following Conventional and Sutureless Sclerotomies

2015 ◽  
Vol 233 (3-4) ◽  
pp. 230-235
Author(s):  
Mehmet Citirik ◽  
Canan Altunkaya ◽  
Dilek Soba ◽  
Tolga Bicer ◽  
Huseyin Ustun
Keyword(s):  
Pars Plana Vitrectomy ◽  
Early Postoperative Period ◽  
Impression Cytology ◽  
Transconjunctival Sutureless Vitrectomy ◽  
Conjunctival Impression Cytology ◽  
Pars Plana ◽  
Cytological Changes ◽  
23 Gauge ◽  
Cytological Alterations ◽  
Sutureless Vitrectomy

Purpose: To assess the alterations in conjunctival impression cytology following 23-gauge transconjunctival sutureless versus conventional pars plana vitrectomy. Patients and Methods: Sixty consecutive patients were enrolled in the study. Conjunctival impression cytology was performed on 30 eyes (of 30 subjects) with 23-gauge transconjunctival sutureless vitrectomy and on 30 eyes (of 30 subjects) with conventional vitrectomy. Conjunctival impression cytology was performed preoperatively on the 1st day and in the 3rd month after the surgery. Impression cytology specimens of each group were graded and scored using a range of 0-3 according to Nelson's method. Results: In the conventional pars plana vitrectomy group, statistically significant alterations in the conjunctival impression cytology were detected on the 1st postoperative day (p = 0.001) and in the 3rd postoperative month (p = 0.001), whereas in the 23-gauge transconjunctival sutureless pars plana vitrectomy group, statistically significant changes were observed on the 1st postoperative day. However, no significant changes were observed in the following 3 postoperative months (p = 0.08). Conclusion: The properties of impression cytology were altered in the early postoperative period after sutureless and conventional vitrectomy. These changes were improved in the sutureless vitrectomy group only. Sutureless vitrectomy also had an advantageous effect on the conjunctival cytological changes and conjunctival structure.

Alterations in the Corneal Topography after Pars Plana Vitrectomy with the Standard System of 20-gauge and the 25-gauge Transconjunctival Sutureless Vitrectomy

2012 ◽  
Vol 27 (1-2) ◽  
pp. 11-14 ◽  
Author(s):  
Alcio Coutinho de Paula ◽  
João Jorge Nassaralla Júnior ◽  
Francisco Weliton Rodrigues ◽  
Rodrigo Egídio da Silva ◽  
Rodrigo Salustiano Correa e Silva ◽  
...  
Keyword(s):  
Pars Plana Vitrectomy ◽  
Corneal Topography ◽  
Standard System ◽  
Transconjunctival Sutureless Vitrectomy ◽  
Pars Plana ◽  
Sutureless Vitrectomy

Aerosol generation through pars plana vitrectomy

2020 ◽  
pp. bjophthalmol-2020-317214
Author(s):  
Hasan Naveed ◽  
Fong May Chew ◽  
Hanbin Lee ◽  
Edward Hughes ◽  
Mayank A Nanavaty
Keyword(s):  
Pars Plana Vitrectomy ◽  
Ex Vivo ◽  
Dynamic Changes ◽  
Aerosol Generation ◽  
Significant Difference ◽  
Optical Particle Counter ◽  
Pars Plana ◽  
23 Gauge ◽  
Set Up ◽  
Ex Vivo Study

PurposeTo assess whether pars plana vitrectomy (PPV) is an aerosol-generating procedure (AGP) in an ex vivo experimental model.MethodsIn this ex vivo study on 10 porcine eyes, optical particle counter was used to measure particles ≤10 μm using cumulative mode in the six in-built channels: 0.3 μm, 0.5 μm, 1 μm, 2.5 μm, 5 μm and 10 μm aerosols during PPV. Two parts of the study were as follows: (1) to assess the pre-experimental baseline aerosol count in the theatre environment where there are dynamic changes in temperature and humidity and (2) to measure aerosol generation with 23-gauge and 25-gauge set-up. For each porcine eye, five measurements were taken for each consecutive step in the experiment including pre-PPV, during PPV, fluid–air exchange (FAX) and venting using a flute with 23-gauge set-up and a chimney with 25-gauge set-up. Therefore, a total of 200 measurements were recorded.ResultsWith 23-gauge and 25-gauge PPV, there was no significant difference in aerosol generation in all six channels comparing pre-PPV versus PPV or pre-PPV versus FAX. Venting using flute with 23-gauge PPV showed significant reduction of aerosol ≤1 μm. Air venting using chimney with 25-gauge set-up showed no significant difference in aerosol of ≤1 μm. For cumulative aerosol counts of all particles measuring ≤5 μm, compared with pre-PPV, PPV or FAX, flute venting in 23-gauge set-up showed significant reduction unlike the same comparison for chimney venting in 25-gauge set-up.ConclusionPPV and its associate steps do not generate aerosols ≤10 μm with 23-gauge and 25-gauge set-ups.

Outcome of 23-Gauge Pars Plana Vitrectomy for Pediatric Vitreoretinal Conditions

2013 ◽  
Author(s):  
Ramandeep Singh ◽  
Neha Kumari ◽  
Deeksha Katoch ◽  
Gaurav Sanghi ◽  
Amod Gupta ◽  
...  
Keyword(s):  
Pars Plana Vitrectomy ◽  
Pars Plana ◽  
23 Gauge
Sign in / Sign up

Export Citation Format

Share Document