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Usefulness of the dacryoscintigraphy in patients with nasolacrimal duct obstruction prior to endoscopic dacryocystorhinostomy

  • Dong Ju Kim
  • Sehyun Baek
  • Minwook ChangEmail author
Oculoplastics and Orbit

Abstract

Purpose

To evaluate the clinical usefulness of the dacryoscintigraphy in patients with nasolacrimal duct obstruction prior to endoscopic dacryocystorhinostomy.

Methods

One hundred thirty-five lacrimal views of endoscopic dacryocystorhinostomy (DCR) with a single surgeon for primary nasolacrimal duct obstruction (PANDO) were included. These were assigned into three groups according to the type of dacryoscintigraphy. Group 1 was a pre-sac obstruction pattern. Group 2 was an intra-sac obstruction pattern. Group 3 was post-sac obstruction pattern. Each group was evaluated for an anatomical and functional surgical success, presence of complications including granuloma, synechiae, and tube-induced inflammation at least 12 months after the surgery.

Results

Both anatomical and functional success rate showed no significant difference among the three groups (P = .297 and .472 linear by linear association). Functional failure rate (functional failure/total failure) also showed no clinically significant differences between groups. Logistic regression analysis was performed to determine the factors associated with functional success. There were no statistically significant factors in age, sex, scintigraphy type, pre-operative endoscopic grade, post-operative granuloma, and synechiae.

Conclusion

In patients with nasolacrimal duct obstruction, preoperative evaluation of obstruction level using dacryoscintigraphy may be not useful for predicting the functional success of the endoscopic dacryocystorhinostomy.

Keywords

Lacrimal scintigraphy Dacryocystography Endoscopic dacryocystorhinostomy Nasolacrimal duct obstruction 

Notes

Authors’ contribution

DJK and MC were responsible for the conception and design of the study. DJK acquired the data. DJK and MC analyzed and interpreted the data. DJK and MC wrote the draft. SB and MC revised the manuscript critically. All authors have read and approved the final manuscript.

Funding

This study was funded by the Dongguk University Research Fund (grant no. S-2014-G0001-00024).

Compliance with ethical standards

All procedures performed in study involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards. Specifically, this study was approved by the Institutional Review Board of Dongguk University, Ilsan Hospital, Goyang, South Korea (IRB 2018-04-020).

Conflict of interest

Author MC has received research grants from Dongguk University Research Fund. But, the funding organization had no role in the design or conduct of this research. Author DJK declares that he has no conflict of interest. Author SB declares that he has no conflict of interest.

Informed consent

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

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Copyright information

© Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of OphthalmologyDongguk University Ilsan HospitalGoyang-siSouth Korea
  2. 2.Department of OphthalmologyKorea University College of MedicineSeoulSouth Korea

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