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Subject: search.filters.subject.subclinical hypothyroidism

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    THE IMPACT OF SUBCLINICAL HYPOTHYROIDISM ON THE LIPID PROFILE IN PERIMENOPAUSAL AND POSTMENOPAUSAL WOMEN
    (Македонска асоцијација на гинеколози и опстетричари = MACEDONIAN ASSSOCIATION OF GYNECOLOGISTS AND OBSTETRICIANS, 2025)
    Aleksandar Nakov
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    Aleksandra Eftimova - Kitanova
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    Marijana Filipovska - Rafajlovska
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    Iskra Martinovska
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    Dyslipidaemia and hypertension in patients with subclinical hypothyroidism
    (Macedonian Academy of Sciences and Arts/De Gruyter, 2009-12)
    Velkoska Nakova, Valentina
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    Dimitrovski, Chedomir
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    Serafimoski, Vladimir
    Objective: The aim of this study was to assess whether subclinical hypothyroidism (SCH) is associated with dyslipidaemia and arterial hypertension. Methods: At the Department of Endocrinology, Diabetes and Metabolic Disorders, Skopje, R. Macedonia, we examined 24 consecutive patients with SCH and 13 healthy controls in a period of 6 months. SCH was defined as an elevated thyrotropin (TSH) (> 4.2 mU/l) and normal free thyroxine (fT4) level (10.3-24.45 pmol/l). None of the patients had been previously treated with thyroxine. In all participants we determined blood pressure, body mass index (BMI), TSH, fT4, antibodies to thyroid peroxidise (TPOabs), total lipids (TL), total cholesterol (TH), high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), and triglycerides. Results: Mean diastolic blood pressure increased in SCH patients vis-a-vis controls (85 vs. 74 mmHg; p < 0.05). Mean values of TL, TH, HDL-C, LDL-C, triglycerides, TC/HDL-C, and LDL-C/HDL-C were no different in patients with SCH compared with controls. Individual analysis revealed that the percentages of patients with SCH having arterial hypertension (29%), hypertriglyceridaemia (34.78%), elevated LDL-C (41.66%), elevated TC/HDL-C (21.7%), and LDL-C/HDL-C (21.74%) ratios were higher than the percentages in controls. No significant correlation between TSH and biochemical parameters was detected. Conclusion: Our study revealed that SCH patients have a greater prevalence of dyslipidaemia and arterial hypertension, and, as well, a greater value of mean diastolic pressure vs. control patients.
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    Subclinical hypothyroidism and risk to carotid atherosclerosis
    (FapUNIFESP (SciELO), 2011-10)
    Valentina, Velkoska Nakova
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    Chedo, Dimitrovski
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    OBJECTIVE: The aim of this study was to assess whether subclinical hypothyroidism (SCH) is associated with carotid atherosclerosis, as well as dyslipidemia, and arterial hypertension. SUBJECTS AND METHODS: The study included 69 consecutive patients with newly diagnosed SCH, and 30 matched healthy controls. Body mass index (BMI), TSH, fT4, antibodies to thyroid peroxidase (TPOabs), lipids, blood pressure, mean and maximum carotid intima-media thickness (CIMT) were determined in all participants. RESULTS: Mean values of CIMT, triglycerides, and total cholesterol/HDL-C ratio were significantly different in SCH patients versus matched controls. Linear multiple regression analysis demonstrated that TSH, diastolic blood pressure and triglycerides were independent predictors of mean CIMT, fT4 for maximum CIMT; and that TSH, fT4, age, and total cholesterol/HDL-C ratio were independent predictors of the presence of carotid plaques. CONCLUSION: Our data revealed that SCH is associated with increase in CIMT and presence of carotid plaques, independent of classical risk factors for atherosclerosis.
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    Echocardiographic differences between the mild form of subclinical hypothyroidism and healthy subjects
    (Bioscientifica, 2024-05-06)
    Velkoska Nakova, Valentina
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    Background: Treatment of subclinical hypothyroidism (ScH) when TSH is between the upper reference value and 7mU/L, especially in patients younger than 65 years is controversial. Objectives: To compare the risk factors for atherosclerosis and echocardiographic parameters in patients with ScH1 (4, 2≤TSH≤7mU/L) to euthyroid subjects and patients with ScH2 (TSH>7mU/L). Material and Methods: Prospectively 54 consecutive patients with newly diagnosed ScH (19 with TSH≤7mU/L (ScH1) and 35 with TSH>7mU/L (ScH2)) started for the first time with levothyroxine therapy, and 30 healthy subjects were recruited from the outpatient department of the University Clinic of Endocrinology in Skopje, R. of N. Macedonia. Laboratory analyses and an echocardiography study were done at the first visit and after 5 months in a euthyroid stage in patients with ScH. Results: The mean age and TSH value in ScH group were 43.1±12.4y., and 8.71± 1, 9mU/L. Compared to healthy controls, patients with ScH1 had a higher mean triglycerides and non-HDL-C ratio (1.52±0.9 vs 1.1±0.6, and 4.3±1.1 vs 3.79±0.9, P<0.05), lower E/A ratio (1.05 ± 0.25 vs 1.26 ± 0.36, P<0.05), higher E/e’ sep. ratio (8.56 ± 2.63 vs 6.04 ± 1.64, P< 0.01), higher myocardial performance index (MPI) (0.47 ± 0.09 vs 0.43 ± 0.07, P< 0.05), lower global longitudinal strain (GLS) (-19.34 ± 2.0 vs -20.9 ± 1.7%, P< 0.05), and lower S wave derived by tissue Doppler imaging (0.074 ± 0.01 vs 0.092 ± 0.01 m/s, P< 0.01). Compared to ScH2, patients with ScH1 have lower GLS but without statistical significance. Levothyroxine treatment (L-T4T) in patients with ScH1 contributed to higher EF (61.9 ± 5.2 vs 63.1 ± 4.6%, P< 0.05), lower E/e’ sep. ratio (8.56 ± 2.63 vs 7.21 ± 2.23, P< 0.05), and lower MPI (0.47 ± 0.09 vs 0.43 ± 0.05%, P< 0.05), compared to values in ScH1 patients at baseline. The same parameters were improved in the ScH2 group after L-T4T. Conclusions: In a small study, patients with ScH1 vs healthy individuals had subtle changes in certain parameters that indicate involvement of diastolic function of the left ventricle in ScH, and these parameters improved after L-T4T.