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. 1997 Dec;81(12):1080-3.
doi: 10.1136/bjo.81.12.1080.

Value of thyroid stimulating antibody in the diagnosis of thyroid associated ophthalmopathy of euthyroid patients

K Kazuo  1 , T Fujikado, G Ohmi, J Hosohata, Y Tano
Affiliations

Value of thyroid stimulating antibody in the diagnosis of thyroid associated ophthalmopathy of euthyroid patients

K Kazuo et al. Br J Ophthalmol. 1997 Dec.

Abstract

Aims/background: Thyroid associated ophthalmopathy (TAO) of euthyroid patients is difficult to diagnose because clinical findings overlap with other conditions, and no confirmatory diagnostic tests are available. Recently, it was reported that TSH binding inhibitor immunoglobulin (TBII) and thyroid stimulating antibody (TSAb) are sensitive markers of TAO. The sensitivity of these antibodies in the detection of TAO were therefore studied to determine if they could be a useful criterion in the diagnosis of TAO of euthyroid patients.

Methods: Serum values of TBII and TSAb of 35 patients with euthyroid TAO (group A) were compared with those of 27 patients with Graves' disease and TAO (group B). The relation between the serum value of TSAb and the eye symptoms of patients with euthyroid TAO were also examined by multiple linear regression analysis.

Results: In group A, TBII was positive in 10 cases (28.6%) and TSAb was positive in 29 cases (82.9%). In group B, both TBII and TSAb were positive in all cases (100%). The titre of serum TBII in group A (15.6% (SD 18.0%)) was significantly lower (p < 0.0001) than in group B (57.9% (21.5%)). The titre of serum TSAb in group A (1400.9% (2163.9%)) was significantly lower (p = 0.0026) than in group B (2243.9% (1472.8%)). Among the eye findings of patients with euthyroid TAO, keratopathy was significantly (p = 0.034) related to the value of TSAb.

Conclusion: These results suggest that the activity of TSAb is a more sensitive marker of euthyroid TAO than is TBII, and could be a useful criterion in the diagnosis of TAO of euthyroid patients.

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Figures

Figure 1
Figure 1
Serum value of free T4, T3, and TSH in group A (euthyroid patients with thyroid associated ophthalmopathy) and in group B (patients with Graves' disease and ophthalmopathy). The shaded area indicates the normal range.
Figure 2
Figure 2
Serum value of TBII and TSAb in groups A and B. The shaded area indicates the normal range.
Figure 3
Figure 3
Relation between serum value of TSAb and TBII in both groups. The linear regression analysis has been done on the combined data from group A and B.
Figure 4
Figure 4
Change in serum value of TSAb in group A. The follow up period was from 6 to 21 months. (∘ euthyroid throughout the follow up period, ▪, became hyperthyroid, ▴, developed Hashimoto's disease, ♦, adenocarcinoma of thyroid was diagnosed.)
See this image and copyright information in PMC

References

    1. J Endocrinol. 1982 Feb;92(2):175-84 - PubMed
    1. Clin Endocrinol (Oxf). 1981 Aug;15(2):175-82 - PubMed
    1. J Clin Endocrinol Metab. 1980 Dec;51(6):1232-4 - PubMed
    1. Proc Natl Acad Sci U S A. 1980 Jun;77(6):3455-9 - PubMed
    1. J Clin Endocrinol Metab. 1979 Mar;48(3):398-402 - PubMed