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Controlled drainage of subretinal fluid during scleral buckling surgery for rhegmatogenous retinal detachment: the pigment stream sign

Abstract

Purpose

To describe the macroscopic characteristics of the subretinal fluid (SRF) and its spilling modality during evacuative puncture in scleral buckling (SB) surgery for rhegmatogenous retinal detachment.

Methods

We retrospective reviewed all the SB surgeries performed over a period of 26 months at the University Eye Clinic of Trieste, Italy. We selected a cohort of 102 patients in which SRF drainage by means of evacuative puncture was performed. A high-definition video was recorded during the whole duration of the procedures, and the macroscopic characteristics of the SRF leakage were assessed.

Results

Pigmented dark-brownish deposits spilling in the fluid outcoming from the evacuative puncture was observed during the surgeries. In all cases, this macroscopic feature was detected during the late phases of the drainage. Moreover, indirect ophthalmoscopic evaluation showed the almost complete SRF drainage and a flattened retina at that moment.

Conclusions

The pigment stream sign, easily detectable by the surgeon, allows to understand, during the evacuative puncture, when the SRF has been drained almost completely and that the drainage procedure is therefore close to the end.

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Correspondence to Chiara De Giacinto.

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Conflict of interest

Chiara De Giacinto declares that she has no conflict of interest. Marco Paoloni declares that he has no conflict of interest. Alberto Armando Perrotta declares that he has no conflict of interest. Marco Pastore declares that he has no conflict of interest. Rita Piermarocchi declares that she has no conflict of interest. Daniele Tognetto declares that he has no conflict of interest.

Ethical approval

All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional research committee and with the 1964 Declaration of Helsinki and its later amendments or comparable ethical standards.

Informed consent

Informed consent was obtained from all individual participants included in the study.

Electronic supplementary material

10792_2018_988_MOESM1_ESM.wmv

High-definition video shows the evacuative puncture and the appearance of pigmented deposits in the subretinal fluid. (WMV 4872 kb)

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De Giacinto, C., Paoloni, M., Perrotta, A.A. et al. Controlled drainage of subretinal fluid during scleral buckling surgery for rhegmatogenous retinal detachment: the pigment stream sign. Int Ophthalmol 39, 1695–1701 (2019). https://doi.org/10.1007/s10792-018-0988-x

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  • DOI: https://doi.org/10.1007/s10792-018-0988-x

Keywords

  • Rhegmatogenous retinal detachment
  • Scleral buckling surgery
  • Subretinal fluid drainage
  • Pigment stream sign
  • Evacuative puncture