Changes in Coagulation Parameters and Metabolic Profile in Hospitalized Patients with Metabolic Dysfunction-Associated Steatohepatitis Receiving Vitamin K: A Retrospective Observational Study

Background/Objectives: Metabolic dysfunction-associated steatohepatitis (MASH) is frequently accompanied by disturbances in coagulation and metabolic homeostasis, partly related to impaired handling of vitamin K-dependent pathways. Although vitamin K is often administered to correct abnormal coagulation tests, its biochemical impact in hospitalized patients with MASH remains insufficiently characterized. This study aimed to evaluate changes in coagulation and metabolic parameters in hospitalized patients with MASH receiving vitamin K supplementation. Methods: We conducted a retrospective study of 84 hospitalized MASH patients who received vitamin K supplementation. Biochemical parameters were recorded at admission and discharge to assess short-term changes during hospitalization. Results: Vitamin K supplementation was associated with modest changes in coagulation parameters, including reductions in PT, INR, and aPTT (e.g., PT decreased from 13.00 s to 11.00 s). Small numerical changes in transaminases, fasting glucose, and total cholesterol were observed during hospitalization, with limited clinical relevance. These patterns were comparable across fibrosis stages, with no significant differences between groups. Discussion: The observed biochemical findings are likely in-hospital factors rather than a direct metabolic effect of vitamin K. Conclusions: Vitamin K supplementation was associated with modest changes in coagulation parameters and small, clinically negligible variations in selected metabolic markers in patients with MASH, irrespective of fibrosis stage. These findings suggest a supportive biochemical effect in selected contexts; further prospective studies are needed to clarify their clinical relevance.