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Clinical presentation of spontaneous primary hypothyroidism in adults
A I Al-Sultan1, E B Larbi, G Magbool
1Departments of Internal Medicine and Pediatrics, College of Medicine and Medical Sciences, King Faisal University, Dammam, Saudi Arabia.
Insights
This study on spontaneous primary hypothyroidism in Saudi Arabia found that symptoms like tiredness and cold intolerance are common. Early detection is possible with clinical findings, aiding physicians in diagnosing this thyroid condition.
Area of Science:
- Endocrinology
- Internal Medicine
- Epidemiology
Background:
- Spontaneous primary hypothyroidism is a significant endocrine disorder.
- Understanding its prevalence and clinical presentation in specific populations is crucial for early diagnosis and management.
Purpose of the Study:
- To analyze the clinical characteristics and prevalence of spontaneous primary hypothyroidism in adult patients at King Fahd Hospital of the University (KFHU), Al-Khobar.
- To identify key symptoms and signs associated with low free thyroxine index (FT4I) in this patient cohort.
Main Methods:
- Retrospective analysis of 309 hypothyroidism cases, with detailed evaluation of 124 adult patients meeting inclusion criteria for spontaneous primary hypothyroidism.
- Data collection included patient demographics, biochemical thyroid function tests (FT4I), and clinical manifestations.
Main Results:
- The prevalence of undiagnosed primary hypothyroidism in Saudis was 5.2/1000 females and 0.94/1000 males.
- Low FT4I was observed in 65% of patients and correlated with symptoms such as tiredness, cold intolerance, constipation, weight gain, menstrual disturbances, dry skin, hoarseness, and signs like coarse skin and delayed reflex relaxation.
- Common presenting symptoms included tiredness (56%) and cold intolerance (38%), while signs included coarse skin (53%) and delayed reflex relaxation (32%).
Conclusions:
- Clinical findings like tiredness, cold intolerance, and skin changes can aid physicians in the early detection of primary hypothyroidism.
- Further population-based studies are recommended to gather more comprehensive data on hypothyroidism in Saudi Arabia.
Abstract:
In a retrospective study of 309 cases of hypothyroidism seen at King Fahd Hospital of the University (KFHU), Al-Khobar, 124 (90 Saudis and 34 non-Saudis) adult patients with spontaneous primary hypothyroidism satisfied the inclusion criteria for detailed analysis. Their male:female ratios for Saudis and non-Saudis were 1:4.6 and 1:3.9 respectively. The majority were diagnosed in their third and fourth decades. The prevalence of previously undiagnosed spontaneous and biochemically overt primary hypothyroidism in Saudis was 5.2/1000 females and 0.94/1000 males. FT4I was normal in 43 (35%) and low in 81 (65%). FT4I correlated with cold intolerance, constipation, dry skin, hoarseness, delayed reflex relaxation, and coarse and cold skin. In rank order, presenting symptoms in those with low FT4I were tiredness (56%), cold intolerance (38%), constipation, weight gain, menstrual disturbance - especially amenorrhea - (36% each), dry skin (35%), hoarseness (31%); signs were coarse skin (53%), delayed reflex relaxation (32%), cold skin and goiter (24% each). The above clinical findings may help physicians in the early detection of primary hypothyroidism. Population-based studies are necessary to provide more data on this disease in this country.
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