Correlation of Serum Electrolyte Imbalances With Diabetic Duration and Medication Use: A Cross-Sectional Comparative Study

Background: Certain anti-diabetic medications may exacerbate electrolyte imbalances, potentially complicating glycemic control in diabetic patients. The present study aimed to correlate the serum electrolyte imbalances such as Na⁺, K⁺, Ca⁺², Cl^-, and Mg⁺² with the duration of disease, glycemic control, and medication regimens.

Method: In this cross-sectional study, 31 patients with type 2 diabetes mellitus (T2DM) and 30 healthy controls, with mean ages of 52.06 and 48.5 years, respectively, were recruited based on eligibility criteria. Data on demographic information, medication history, and duration of diabetes were collected. Fasting blood sugar (FBS), postprandial blood sugar (PPBS), glycated hemoglobin (HbA1C), and serum electrolytes were measured. The data were statistically analyzed. The mean differences in serum electrolytes between T2DM patients and non-diabetic participants were compared using the Mann-Whitney U test, and correlation analysis was performed. A p-value of <0.05 was considered statistically significant.

Result: Around 9.6% of participants had diabetes duration of less than one year, while the majority (45%) fell within the 1-5-year duration range. Most diabetic patients (61.2%) exhibited poor glycemic control. Statistically significant differences were observed between the mean FBS, PPBS, and HbA1C levels of T2DM (150, 249, and 8.82, respectively) and control group (95, 114, and 5.52, respectively). Analysis of serum electrolytes showed statistically significant differences with regard to Na⁺, K⁺, and Cl^- between the diabetic and control groups. Mean sodium and chloride levels were lower and potassium levels were higher in diabetic patients compared to the control group. Negative correlations were observed between sodium and chloride levels and duration of diabetes and HbA1C levels.

Conclusion: The study reveals significant electrolyte imbalances in patients with T2DM, characterized by reduced sodium and chloride levels and elevated potassium levels compared to healthy controls. These alterations are closely associated with poor glycemic control and longer disease duration, emphasizing the importance of regular electrolyte monitoring in T2DM management to mitigate potential complications.