Study emphasises why doctors need to treat TSH levels to target

Both exogenous hyperthyroidism and exogenous hypothyroidism raise the risk of CVD and death in patients receiving thyroid hormone: US study
Reuters Health

New research underscores the importance of maintaining thyroid stimulating hormone levels within the recommended range in all patients receiving thyroid hormone treatment, according to the authors.

The US researchers say their findings confirm that both exogenous hyperthyroidism and exogenous hypothyroidism raise the risk of cardiovascular disease and death, especially in elderly patients.