The TSH dynamics in upperand low-normal range in patients with primary hypothyroidism: clinical presentation, well-being and quality of life

In our study we try to determine whether small changes in thyroxine treatment is effective in patients with symptoms of hypothyroidism but with thyroid function tests within the reference range, and to investigate the effect of thyroxine treatment on psychological and physical wellbeing in healthy participants. Sixty ambulatory patients with primary hypothyroidism receiving levothyroxine (L-T4) participated in the study. Patients were divided into 2 groups according to their TSH level. The first group was in TSH low-normal range (0.4–2.0 mU/l), the second in upper-normal (2.1–4.0 mU/l) range. We analyzed the results of several tests: “12 classical hypothyroidism symp- toms”, SF36, HARS, HDRS, Zung scale at baseline and in 3 months. With a small-dose changes we cross the groups to compare the results. Results: At baseline analyze there was a small differ-ence between two groups. Women with in the upper-normal TSH range had more expressed symptoms of hypothyroidism. After small changes in thyroxine treatment we could not say that the clinical picture of a hypothyroidism has changed cardinally, however, it is necessary to notice that there was dynamics of separate symptoms. The same picture was noticed with the depression and anxiety levels. The meanings were rather close and small dose changes in L-T4 treatment were more expressed in group with upper-normal range. The positive dynamics of well-being after dose changing were registered in both groups. Conclusion: Small changes in T4 dosage do not produce measurable changes in hypothyroid symptoms, well-being, or quality of life.

TSH, Low-normal TSH range, Upper-normal TSH range, well-being, SF36, HARS, HDRS, SF-36

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