Vol 72, No 6 (2021)
Original paper
Published online: 2021-08-18

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Orbital decompression for thyroid eye disease: surgical treatment outcomes in endocrinological assessment

Olga Jurek-Matusiak1, Eliza Brożek-Mądry1, Helena Jastrzębska2, Antoni Krzeski1
Pubmed: 34647604
Endokrynol Pol 2021;72(6):609-617.


Introduction: Surgical orbital decompression involves removal of one or more of the orbital bony walls in order to gain space for overgrown muscles and adipose tissue, which results in a reduction in pressure on the eye. This observational study aims to perform an endocrinological assessment of the surgical treatment outcomes of thyroid eye disease (TED) patients before and after orbital decompression.

Material and methods: This retrospective study included 51 TED patients (84 orbits) who underwent endoscopic orbital decompression (EOD) or balanced orbital decompression. The effect of surgical treatment was evaluated via the clinical activity score (CAS), and modified NOSPECS and EUGOGO classification.

Results: Before orbital decompression, the average CAS index was 3.83 ± 1.86 points, whereas the modified NOSPECS score was 3.31 ± 0.97 points. After surgical intervention, the values were as follows: 2.07 ± 1.84 points for CAS and 2.5 ± 0.97 points for modified NOSPECS. The EUGOGO classification before surgery showed that Graves’ orbitopathy (GO) was mild, moderate to severe, and sight-threatening in 1%, 25%, and 74% of the orbits, respectively. After surgery, GO was determined to be mild, moderate to severe, and sight-threatening in 24%, 57%, and 19% of the orbits, respectively. Statistical analysis was performed using the R 3.6.2 statistical environment. Inference about the statistical reliability of the parameter was made by calculating the mean and the 95% credibility interval (CI).

Conclusions: The severity of TED decreased after orbital decompression. The CAS, and modified NOSPECS and EUGOGO classification showed a statistically reliable postoperative reduction. The drop in activity of the disease after orbital surgery requires careful follow-up.

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