Subclinical thyroid dysfunction is a common laboratory diagnosis characterized by an abnormal high serum thyrotropin (TSH) concentration with normal free triiodothyronine (T3) and thyroxine (T4) levels. Refinements in serum thyrotropin measurements during the past few decades have resulted in a sharp increase in the diagnosis of thyroid dysfunction, mirroring the tendency towards early diagnosis of many other conditions such as hyper lipidemia for which early treatment appears beneficial. Various studies have been done regarding subclinical thyroid dysfunction and its clinical relevance in common bile duct (CBD) stone patients. This study of subclinical hypothyroidism was done on 30 common bile duct stone patients, admitted in Department of General Surgery. The aim of the study was to find out the prevalence of subclinical hypothyroidism in common bile duct stone patients.
Key words: subclinical hypothyroidism, common bile duct stone, thyroid dysfunction