Can Albumin/Lymphocyte Ratio and MPV /Lymphocyte Ratio Serve as New Inflammatory Biomarkers in Patients With Hyperemesis Gravidarum?

Objective This study aimed to evaluate the diagnostic utility of the albumin/lymphocyte ratio (ALR) and mean platelet volume/lymphocyte ratio (MPVLR) novel inflammatory markers not previously studied in hyperemesis gravidarum (HG) as potential biomarkers in patients diagnosed with HG. Patients and Methods A total of 68 first‐trimester pregnant women with clinically diagnosed HG and 78 healthy pregnant controls were included. Systemic inflammatory markers including neutrophil/lymphocyte ratio (NLR), platelet/lymphocyte ratio (PLR), albumin/fibrinogen ratio (AFR), fibrinogen/lymphocyte ratio (FLR), magnesium/lymphocyte ratio (MgLR), ALR, MPVLR, and systemic immune‐inflammation index (SII) were calculated and compared between the two groups. Results Lymphocyte counts and ketonuria levels were significantly higher in the HG group. Conversely, ALR and MPVLR values were significantly lower in the HG group. MPVLR was identified as a potential diagnostic marker for HG with a cutoff value of 4.569, yielding a sensitivity of 54.4% and specificity of 44.9%. ALR demonstrated a cutoff value of 22.853 with a sensitivity of 61.8% and specificity of 38.5%. Conclusions In contrast to the previous literature, PLR and NLR levels were not elevated in HG patients. However, ALR and MPVLR previously unexamined in this population were significantly lower, suggesting a potential role in HG pathophysiology. The findings underscore the complexity and dynamic nature of inflammatory responses in HG, warranting further investigation.