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Choroidal detachment, hypotony may be common after 23-gauge PPV
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Choroidal detachment and hypotony are common after 23-gauge pars plana vitrectomy, and most complications may be associated with the use of fluid tamponade, according to a study.
The prospective observational study compared the clinical features of 49 eyes that underwent 20-gauge pars plana vitrectomy (PPV) and 97 eyes that underwent 23-gauge PPV.
At 1 day after PPV, mild choroidal detachment was seen in one eye in the 20-gauge group and 22 eyes in the 23-gauge group; the difference was statistically significant (P = .001). Characteristics of choroidal detachment in the 23-gauge group were defined as asymptomatic, transient and self-healing; diffuse and mild; and associated with the tamponade material, according to the study.
Mean IOP was significantly lower in the 23-gauge group at 1 day postop compared with the 20-gauge group (P = .000), but nine eyes in the 23-gauge group had hypotony vs. one eye in the 20-gauge group (P = .000).
Although choroidal detachment and hypotony are common complications in the early stages after 23-gauge PPV, they can resolve spontaneously, the study authors said.
In the 23-gauge group, the mean IOP of eyes with choroidal detachment was 7.9 ± 2.1 mm Hg, which was significantly lower than 11.7 ± 6.1 mm Hg in the eyes without choroidal detachment (P = .004).
No significant difference regarding vitreous incarceration was observed between the groups, and no progressive change was seen in any eye during follow-up. – by Kristie L. Kahl
Disclosure: The authors report no relevant financial disclosures.
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